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Cheap flights from Denver (DEN) to Sofia (SOF) from $486

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
DEN — SOF
May 21 — May 281
From?
To?
Tue 5/21
Tue 5/28
1 adult, Economy
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The best prices from Denver Intl to Sofia are usually found in December or February, booked 56 days in advance, depart on a Friday or Tuesday and return on a Saturday

Cheap flight deals from Denver to Sofia

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Sofia (SOF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 16, 2024.

Popular in

June

Cheapest in

December

Average price

$1,584

Round-trip from

$660
High demand for flights, 29% potential price rise
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Best time to find cheap flights, 37% potential price drop
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Average for round-trip flights in May 2024
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From Denver Intl to Sofia
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What is the cheapest day to fly round-trip from Denver to Sofia?

Flights from Denver to Sofia are found to be more expensive on Friday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Sofia.

How far in advance should I book a flight from Denver to Sofia?

Users have found that booking a flight from Denver to Sofia at least 57 days early can save you up to 4% on average compared to booking a flight this week. If booking 57 days before your flight isn’t an option for you, users have found flights from Denver to Sofia for as little as $551 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $551 for flights departing within the next 3 days.

What is the cheapest month to fly from Denver to Sofia?

December can be a great time to fly to Sofia from Denver with a flight ticket averaging about $1,124. Cheapflights users have found deals in the month of December for as cheap as $551. The most expensive prices can be found in the month of June.

When is the cheapest time to fly from Denver to Sofia (DEN - SOF)?

It’s typically best to fly out from Denver to Sofia in the morning. Doing so could potentially save you 15% on the flight price compared to flying in the evening, which is usually more expensive.

Cheap Turkish Airlines flights from Denver to Sofia

Explore cheap flight options specifically provided by Turkish Airlines for the route between Denver and Sofia. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Find some of the cheapest Turkish Airlines flights traveling from Denver to Sofia. Deals update often to give you more flight options matching your criteria
Thu 8/16:10 amDEN - SOF
2 stops29h 10mTurkish Airlines
Thu 8/229:20 amSOF - DEN
1 stop17h 20mTurkish Airlines
Deal found 5/14$638
Thu 8/17:35 pmDEN - SOF
1 stop15h 45mTurkish Airlines
Thu 8/229:20 amSOF - DEN
1 stop17h 20mTurkish Airlines
Deal found 5/14$738
Sun 11/108:35 pmDEN - SOF
1 stop15h 15mTurkish Airlines
Sun 11/173:55 pmSOF - DEN
1 stop34h 45mTurkish Airlines
Deal found 5/15$3,221
Mon 11/118:35 pmDEN - SOF
1 stop15h 15mTurkish Airlines
Sun 11/179:40 pmSOF - DEN
1 stop29h 00mTurkish Airlines
Deal found 5/15$3,286
Tue 11/128:35 pmDEN - SOF
1 stop33h 30mTurkish Airlines
Tue 11/1910:00 amSOF - DEN
1 stop16h 40mTurkish Airlines
Deal found 5/15$3,523
Sun 11/108:35 pmDEN - SOF
1 stop15h 15mTurkish Airlines
Sat 11/169:40 pmSOF - DEN
1 stop29h 00mTurkish Airlines
Deal found 5/15$3,580
Fri 11/88:35 pmDEN - SOF
1 stop15h 15mTurkish Airlines
Sun 11/179:40 pmSOF - DEN
1 stop29h 00mTurkish Airlines
Deal found 5/15$3,623
Fri 11/88:35 pmDEN - SOF
1 stop27h 35mTurkish Airlines
Sat 11/169:40 pmSOF - DEN
1 stop29h 00mTurkish Airlines
Deal found 5/15$3,723

Cheap Lufthansa flights from Denver to Sofia

Explore cheap flight options specifically provided by Lufthansa for the route between Denver and Sofia. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Some of the best deals we've found on Lufthansa flights traveling from Denver to Sofia. Deals are refreshing constantly so come back soon for more options.
Mon 9/24:05 pmDEN - SOF
1 stop17h 40mLufthansa
Tue 9/176:00 amSOF - DEN
1 stop17h 20mLufthansa
Deal found 5/16$1,031
Wed 7/108:20 pmDEN - SOF
1 stop13h 25mLufthansa
Fri 8/236:30 amSOF - DEN
1 stop18h 10mLufthansa
Deal found 5/15$1,134
Wed 7/107:45 amDEN - SOF
2 stops26h 00mLufthansa
Fri 8/236:30 amSOF - DEN
1 stop18h 10mLufthansa
Deal found 5/15$1,139
Wed 6/128:20 pmDEN - SOF
1 stop17h 40mLufthansa
Wed 6/196:00 amSOF - DEN
1 stop17h 20mLufthansa
Deal found 5/15$1,191
Sun 7/74:05 pmDEN - SOF
1 stop17h 40mLufthansa
Fri 7/126:30 amSOF - DEN
1 stop18h 10mLufthansa
Deal found 5/15$3,251
Thu 11/78:20 pmDEN - SOF
1 stop12h 50mLufthansa
Tue 11/191:45 pmSOF - DEN
1 stop14h 05mLufthansa
Deal found 5/15$5,092
Thu 11/78:20 pmDEN - SOF
1 stop12h 50mLufthansa
Thu 11/146:05 amSOF - DEN
1 stop17h 35mLufthansa
Deal found 5/15$5,432
Sat 11/98:20 pmDEN - SOF
1 stop12h 50mLufthansa
Thu 11/146:05 amSOF - DEN
1 stop21h 45mLufthansa
Deal found 5/15$9,032

Cheap Denver to Sofia flights in May & June 2024

Find cheap flight options from Denver to Sofia specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Prices were last updated on May 16, 2024.
Listed are some of the best fares we've found on flights departing from Denver to Sofia in 2024. More deals are always being added, so be sure to check back regularly.
Sun 6/25:55 pmDEN - SOF
1 stop31h 15mSWISS
Sun 6/912:55 pmSOF - DEN
2 stops36h 25mSWISS
Deal found 5/15$1,169
Sun 6/25:55 pmDEN - SOF
2 stops15h 50mSWISS
Sun 6/912:55 pmSOF - DEN
2 stops36h 25mSWISS
Deal found 5/15$1,188
Wed 6/128:20 pmDEN - SOF
1 stop17h 40mLufthansa
Wed 6/196:00 amSOF - DEN
1 stop17h 20mLufthansa
Deal found 5/15$1,191
Wed 6/128:20 pmDEN - SOF
1 stop17h 40mUnited Airlines
Wed 6/2612:55 pmSOF - DEN
2 stops20h 04mUnited Airlines
Deal found 5/15$1,192
Wed 6/1211:26 amDEN - SOF
2 stops26h 34mUnited Airlines
Wed 6/2612:55 pmSOF - DEN
2 stops20h 04mUnited Airlines
Deal found 5/15$1,196
Wed 6/128:20 pmDEN - SOF
1 stop17h 40mUnited Airlines
Wed 6/266:30 amSOF - DEN
1 stop18h 10mUnited Airlines
Deal found 5/15$1,216
Wed 6/127:45 amDEN - SOF
2 stops18h 35mAir Canada
Wed 6/1912:55 pmSOF - DEN
2 stops20h 01mAir Canada
Deal found 5/15$1,223
Thu 5/309:45 amDEN - SOF
2 stops18h 35mAir Canada
Mon 8/512:55 pmSOF - DEN
2 stops28h 47mAir Canada
Deal found 5/16$1,323
Sun 6/25:35 pmDEN - SOF
1 stop32h 45mMultiple Airlines
Sun 6/96:00 amSOF - DEN
1 stop17h 20mMultiple Airlines
Deal found 5/15$1,401

Denver to Sofia 2024 flight deals

Discover exclusive flight deals for travel between Denver and Sofia in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Listed are some of the best fares we've found on flights departing from Denver to Sofia in 2024. More deals are always being added, so be sure to check back regularly.
Thu 8/16:10 amDEN - SOF
2 stops29h 10mTurkish Airlines
Thu 8/229:20 amSOF - DEN
1 stop17h 20mTurkish Airlines
Deal found 5/14$638
Thu 8/17:35 pmDEN - SOF
1 stop15h 45mTurkish Airlines
Thu 8/229:20 amSOF - DEN
1 stop17h 20mTurkish Airlines
Deal found 5/14$738
Sun 11/175:35 pmDEN - SOF
2 stops39h 35mUnited Airlines
Fri 11/296:25 amSOF - DEN
2 stops36h 39mUnited Airlines
Deal found 5/16$764
Sun 11/174:25 pmDEN - SOF
1 stop21h 20mUnited Airlines
Fri 11/296:25 amSOF - DEN
2 stops36h 39mUnited Airlines
Deal found 5/16$766
Thu 8/156:10 amDEN - SOF
2 stops23h 45mTurkish Airlines
Thu 8/293:45 pmSOF - DEN
1 stop34h 55mTurkish Airlines
Deal found 5/16$890
Mon 9/26:03 amDEN - SOF
2 stops17h 27mMultiple Airlines
Tue 9/179:20 amSOF - DEN
1 stop17h 20mMultiple Airlines
Deal found 5/16$1,002
Mon 9/24:05 pmDEN - SOF
1 stop17h 40mLufthansa
Tue 9/176:00 amSOF - DEN
1 stop17h 20mLufthansa
Deal found 5/16$1,031
Mon 9/23:58 pmDEN - SOF
2 stops19h 27mBritish Airways
Tue 9/179:15 pmSOF - DEN
2 stops32h 25mBritish Airways
Deal found 5/16$1,064
Wed 7/107:45 amDEN - SOF
2 stops19h 25mAir Canada
Fri 8/236:00 amSOF - DEN
2 stops25h 46mAir Canada
Deal found 5/16$1,078

One-way flights to Sofia from Denver

Search for one-way flight options from Denver to Sofia. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Take a look at some of the best available options we've come across on one-way flights from Denver to Sofia. Users can also find round-trip Denver to Sofia flights by using the search form above.
Fri 6/146:59 pmDEN - SOF
3 stops56h 41mMultiple Airlines
Deal found 5/15$486
Sun 6/232:20 pmDEN - SOF
3 stops27h 35mMultiple Airlines
Deal found 5/16$500
Mon 6/2410:46 amDEN - SOF
3 stops47h 24mMultiple Airlines
Deal found 5/16$542
Sat 6/2212:48 amDEN - SOF
3 stops40h 27mMultiple Airlines
Deal found 5/16$552
Sun 6/2312:48 amDEN - SOF
2 stops34h 37mMultiple Airlines
Deal found 5/16$597
Mon 6/2410:46 amDEN - SOF
2 stops24h 39mMultiple Airlines
Deal found 5/16$610
Fri 6/147:05 pmDEN - SOF
2 stops43h 30mMultiple Airlines
Deal found 5/15$636
Thu 6/1312:48 amDEN - SOF
3 stops51h 07mMultiple Airlines
Deal found 5/15$676
Thu 6/1312:48 amDEN - SOF
2 stops49h 32mMultiple Airlines
Deal found 5/15$700

Find flights from Denver to Sofia within your budget

Customize your flight search to find flights from Denver to Sofia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$638 - $1,192

Route

Depart

Return

Price

Denver IntlSofia

DEN - SOF

DENSOF

Denver Intl

Thu 8/1

2 stops29h 10m

Sofia

Thu 8/22

1 stop17h 20m

$638

Denver IntlSofia

DEN - SOF

DENSOF

Denver Intl

Thu 8/1

1 stop15h 45m

Sofia

Thu 8/22

1 stop17h 20m

$738

Denver IntlSofia

DEN - SOF

DENSOF

Denver Intl

Mon 9/2

2 stops17h 27m

Sofia

Tue 9/17

1 stop17h 20m

$1,002

Denver IntlSofia

DEN - SOF

DENSOF

Denver Intl

Mon 9/2

1 stop17h 40m

Sofia

Tue 9/17

1 stop17h 20m

$1,031

Denver IntlSofia

DEN - SOF

DENSOF

Denver Intl

Mon 9/2

2 stops19h 27m

Sofia

Tue 9/17

2 stops32h 25m

$1,064

Denver IntlSofia

DEN - SOF

DENSOF

Denver Intl

Thu 8/1

2 stops19h 05m

Sofia

Thu 8/22

2 stops18h 51m

$1,096

Denver IntlSofia

DEN - SOF

DENSOF

Denver Intl

Wed 7/10

2 stops24h 00m

Sofia

Fri 8/23

2 stops37h 27m

$1,124

Denver IntlSofia

DEN - SOF

DENSOF

Denver Intl

Sun 6/2

1 stop31h 15m

Sofia

Sun 6/9

2 stops36h 25m

$1,169

Denver IntlSofia

DEN - SOF

DENSOF

Denver Intl

Wed 6/12

1 stop17h 40m

Sofia

Wed 6/26

2 stops20h 04m

$1,192

Flights are sorted by cheapest first

Deals found on 5/14

When is the best time to book a flight from Denver to Sofia?

Use this chart to determine the optimal time to book a round-trip flight from Denver to Sofia. Price data was last updated on May 10, 2024.
The price you pay for your flight from Denver to Sofia may vary depending on when you book. For the best chance of a lower fare, look to book 56 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
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When is the cheapest time to fly from Denver to Sofia?

Use this chart to determine the cheapest time to fly round-trip from Denver to Sofia. Price data was last updated on May 12, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Denver to Sofia flight should consider departing on Friday evenings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
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Average price of flights to Sofia by month

Plan your trip from Denver to Sofia by taking into account the cheapest months to travel. The average price of a one-way flight from Denver to Sofia is currently $589 while a round-trip flight costs $1,006. Price data was last updated on May 12, 2024.

Currently, November is the cheapest month in which you can book a flight from Denver to Sofia (average of $660). Flying from Denver to Sofia in June is currently the most expensive (average of $1,308). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$661

February

$682

March

$680

April

$776

May

$913

June

$1,308

July

$1,153

August

$926

September

$787

October

$702

November

$660

December

$673

Temperature and rainfall in Sofia by month

Plan your trip to Sofia by taking into account the average temperature and rainfall totals by month.

SOF

Temperature

30.2 - 68 °F

Reviews of airlines servicing Sofia

Get insights into the airlines that provide service to Sofia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sofia. Reviews last updated May 16, 2024.
Read reviews from past customers who have flown Turkish Airlines, Lufthansa and British Airways from Denver to Sofia. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
SWISS
7.8
Good
1,994 reviews
Check prices

Crew

8.4

Food

7.4

Comfort

7.6

Entertainment

7.2

Boarding

7.9

Overall

7.8

Reviews

1 / 10

Very crowded flight. Staff brought refreshments regularly and the food was surprisingly good. But checking was very slow and they allowed way too many people with large suitcases on board making onboarding and off-boarding very slow and chaotic.

SWISS
7.8
Good
1,994 reviews
SWISS
7.8
Good
1,994 reviews
Check prices

Crew

8.4

Food

7.4

Comfort

7.6

Entertainment

7.2

Boarding

7.9

Overall

7.8

Reviews

1 / 10

Very crowded flight. Staff brought refreshments regularly and the food was surprisingly good. But checking was very slow and they allowed way too many people with large suitcases on board making onboarding and off-boarding very slow and chaotic.

Austrian Airlines
7.7
Good
1,053 reviews
SWISS
7.8
Good
1,994 reviews
Check prices

Crew

8.4

Food

7.4

Comfort

7.6

Entertainment

7.2

Boarding

7.9

Overall

7.8

Reviews

1 / 10

Very crowded flight. Staff brought refreshments regularly and the food was surprisingly good. But checking was very slow and they allowed way too many people with large suitcases on board making onboarding and off-boarding very slow and chaotic.

Turkish Airlines
7.4
Good
3,707 reviews
SWISS
7.8
Good
1,994 reviews
Check prices

Crew

8.4

Food

7.4

Comfort

7.6

Entertainment

7.2

Boarding

7.9

Overall

7.8

Reviews

1 / 10

Very crowded flight. Staff brought refreshments regularly and the food was surprisingly good. But checking was very slow and they allowed way too many people with large suitcases on board making onboarding and off-boarding very slow and chaotic.

United Airlines
7.4
Good
10,924 reviews
SWISS
7.8
Good
1,994 reviews
Check prices

Crew

8.4

Food

7.4

Comfort

7.6

Entertainment

7.2

Boarding

7.9

Overall

7.8

Reviews

1 / 10

Very crowded flight. Staff brought refreshments regularly and the food was surprisingly good. But checking was very slow and they allowed way too many people with large suitcases on board making onboarding and off-boarding very slow and chaotic.

Air Canada
7.0
Good
6,947 reviews
SWISS
7.8
Good
1,994 reviews
Check prices

Crew

8.4

Food

7.4

Comfort

7.6

Entertainment

7.2

Boarding

7.9

Overall

7.8

Reviews

1 / 10

Very crowded flight. Staff brought refreshments regularly and the food was surprisingly good. But checking was very slow and they allowed way too many people with large suitcases on board making onboarding and off-boarding very slow and chaotic.

Related info for your journey

Find useful and relevant information for your journey from Denver to Sofia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Denver to Sofia for under $700 on Cheapflights?

    Yes, there are multiple flights from Denver to Sofia for under $700. The cheapest flight booked recently is on Turkish Airlines for just $638, but on average you can expect to pay $1,123.

  • What are the cheapest airlines flying from Denver to Sofia round-trip?

    Our cheapest airline available from Denver to Sofia is Turkish Airlines. Our recent data shows that you can find tickets from as low as $638 on this airline. Additional options worth looking into are Lufthansa and British Airways, starting at $1,031 and $1,064 round-trip. Turkish Airlines is currently priced 43% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Denver to Sofia one-way?

    The cheapest airline one-way is British Airways, with whom users have recently found tickets for as low as $896. However, be on the lookout for offers from Lufthansa and Turkish Airlines, as they are both options that can get you from Denver to Sofia for a low price.

  • What are the most popular airlines that fly from Denver to Sofia?

    When booking a flight from Denver to Sofia, you may want to consider flying on British Airways, Lufthansa or Turkish Airlines as they are the most popular for this route.

  • What does DEN to SOF mean?

    This is defined as Denver Intl Airport (DEN) and Sofia Airport (SOF). Codes like Sofia Airport are often used to just call airports uniquely.

  • Can I find deals for flights from Denver to Sofia that include extra baggage allowance?

    The amount of baggage you can bring on your Denver to Sofia flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Denver to Sofia with specific airlines?

    Yes, Cheapflights allows you to browse and filter Denver to Sofia flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Denver to Sofia that include hotel bookings?

    Yes. In addition to deals on Denver to Sofia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to Sofia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Sofia.

  • Can I find deals for business class flights from Denver to Sofia?

    Yes. Cheapflights offers flight deals from Denver to Sofia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Denver to Sofia that allow pets onboard?

    Many airlines flying from Denver to Sofia offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Denver to Sofia?

    Yes, you can often find last-minute deals on Denver to Sofia flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Denver to Sofia flight deals updated?

    The Denver to Sofia flight deals you see on this page were last updated on 5/16.

See more FAQs

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Alternative routes for Denver to Sofia
See prices for flight routes from nearby airports that may be better suited for you.

Grand Junction to Sofia flights

Top 4 airlines flying from Denver to Sofia

Discover the top 4 airlines that operate flights from Denver to Sofia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$593Average$813FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Turkish AirlinesCheapest$717Average$771FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
United AirlinesCheapest$757Average$1,197FlexibilityNo cancel feeOn-time69%
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LufthansaCheapest$778Average$1,256FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
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Search flights from Denver to Sofia by cabin class

Find flights from Denver to Sofia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Denver to Sofia?

Deals for Denver to Sofia flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Denver to Sofia?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Sofia from Denver.

Can Cheapflights find flights from Denver to Sofia with no change fees?

Certainly. Search results for flights to Sofia from Denver shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Denver to Sofia become cheaper?

Of course! You can now track prices for flights from Denver to Sofia and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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