Cheap flights from St. Louis (STL) to District of Columbia from $73

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 6/21. 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.
STL — IAD
Jun 15 — Jun 221

How far in advance should I book a flight from St. Louis to District of Columbia?

To save up to 108% on this flight, we recommend booking at least 53 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from St. Louis to District of Columbia from $327 1-2 weeks out and tickets from $466 for flights departing within the next 72 hours.

What is the cheapest month to fly from St. Louis to District of Columbia?

January is one of the best times of the year to fly to District of Columbia from St. Louis. Prices for January average $276 per person but you can even find prices for as low as $108. The most expensive prices can be found in the month of June. Opting for a January flight can save you 19% on your journey compared to booking in June

What is the cheapest time of day to fly from STL to DC?

When flying from St. Louis to District of Columbia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap St. Louis to District of Columbia flights in June & July 2024

Find cheap flight options from St. Louis to District of Columbia specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,080,152 searches. Prices were last updated on June 10, 2024.
Scroll through some of the best deals on flights from St. Louis to District of Columbia in 2024. Check back in a little while for more flight options.
Tue 7/163:49 pmSTL - DCA
1 stop4h 51mDelta
Tue 7/236:00 amDCA - STL
1 stop6h 42mDelta
Deal found 6/9$208
Tue 7/166:00 amSTL - IAD
1 stop7h 04mDelta
Tue 7/239:40 amIAD - STL
1 stop6h 04mDelta
Deal found 6/9$208
Tue 7/98:25 amSTL - IAD
Nonstop2h 10mUnited Airlines
Sat 7/135:25 pmIAD - STL
1 stop5h 23mUnited Airlines
Deal found 6/9$209
Wed 7/178:02 pmSTL - DCA
1 stop15h 07mFrontier
Thu 7/257:00 amDCA - STL
1 stop13h 57mFrontier
Deal found 6/9$211
Mon 7/15:30 pmSTL - IAD
1 stop6h 00mUnited Airlines
Sat 7/68:15 amIAD - STL
Nonstop2h 07mUnited Airlines
Deal found 6/10$213
Tue 6/183:47 pmSTL - DCA
1 stop19h 14mFrontier
Sun 6/307:00 amDCA - STL
1 stop27h 29mFrontier
Deal found 6/9$217
Mon 7/159:10 amSTL - DCA
1 stop5h 52mDelta
Tue 7/236:00 amDCA - STL
1 stop4h 02mDelta
Deal found 6/9$218
Fri 7/195:26 pmSTL - IAD
1 stop5h 32mDelta
Tue 7/236:00 amIAD - STL
1 stop4h 02mDelta
Deal found 6/9$218
Mon 7/15:42 pmSTL - DCA
Nonstop2h 01mAmerican Airlines
Fri 7/57:28 amDCA - STL
1 stop7h 58mAmerican Airlines
Deal found 6/9$222

St. Louis to District of Columbia 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and District of Columbia in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,080,152 searches. Data last updated June 10, 2024.
Scroll through some of the best deals on flights from St. Louis to District of Columbia in 2024. Check back in a little while for more flight options.
Mon 8/193:00 pmSTL - DCA
1 stop4h 57mDelta
Sat 9/76:24 pmDCA - STL
1 stop4h 04mDelta
Deal found 6/9$208
Fri 8/236:30 amSTL - IAD
1 stop3h 54mDelta
Sun 9/16:10 amIAD - STL
1 stop4h 04mDelta
Deal found 6/9$208
Fri 8/96:12 amSTL - DCA
Nonstop1h 59mAmerican Airlines
Mon 8/128:02 pmDCA - STL
Nonstop2h 16mAmerican Airlines
Deal found 6/9$209
Tue 7/98:25 amSTL - IAD
Nonstop2h 10mUnited Airlines
Sat 7/135:25 pmIAD - STL
1 stop5h 23mUnited Airlines
Deal found 6/9$209
Wed 7/178:02 pmSTL - DCA
1 stop15h 07mFrontier
Thu 7/257:00 amDCA - STL
1 stop13h 57mFrontier
Deal found 6/9$211
Mon 7/15:30 pmSTL - IAD
1 stop6h 00mUnited Airlines
Sat 7/68:15 amIAD - STL
Nonstop2h 07mUnited Airlines
Deal found 6/10$213
Tue 6/183:47 pmSTL - DCA
1 stop19h 14mFrontier
Sun 6/307:00 amDCA - STL
1 stop27h 29mFrontier
Deal found 6/9$217
Mon 7/159:10 amSTL - DCA
1 stop5h 52mDelta
Tue 7/236:00 amDCA - STL
1 stop4h 02mDelta
Deal found 6/9$218
Fri 7/195:26 pmSTL - IAD
1 stop5h 32mDelta
Tue 7/236:00 amIAD - STL
1 stop4h 02mDelta
Deal found 6/9$218

St. Louis to District of Columbia flights leaving soon

Find last-minute flight options from St. Louis to District of Columbia for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,080,152 searches. Data last updated June 10, 2024.
Check out these flights departing soon from St. Louis to District of Columbia. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
Tue 6/183:47 pmSTL - DCA
1 stop19h 14mFrontier
Sun 6/307:00 amDCA - STL
1 stop27h 29mFrontier
Deal found 6/9$217
Wed 6/198:02 pmSTL - DCA
1 stop15h 03mFrontier
Wed 6/2612:53 pmDCA - STL
1 stop26h 39mFrontier
Deal found 6/10$240
Mon 6/178:22 pmSTL - DCA
1 stop14h 43mFrontier
Thu 6/206:50 pmDCA - STL
1 stop15h 50mFrontier
Deal found 6/9$246
Sun 6/166:30 amSTL - IAD
1 stop5h 23mSun Country Air
Sat 6/2212:40 pmIAD - STL
1 stop8h 21mSun Country Air
Deal found 6/9$272
Mon 6/178:22 pmSTL - DCA
1 stop14h 43mFrontier
Tue 6/186:59 pmDCA - STL
1 stop15h 30mFrontier
Deal found 6/9$275
Tue 6/187:30 pmSTL - IAD
1 stop13h 56mSun Country Air
Sat 6/2212:40 pmIAD - STL
1 stop8h 21mSun Country Air
Deal found 6/9$275
Mon 6/178:22 pmSTL - DCA
1 stop14h 43mFrontier
Sat 6/226:59 pmDCA - STL
1 stop20h 38mFrontier
Deal found 6/9$296
Wed 6/198:02 pmSTL - DCA
1 stop15h 03mFrontier
Fri 6/2112:59 pmDCA - STL
1 stop21h 30mFrontier
Deal found 6/9$306
Tue 6/187:30 pmSTL - IAD
1 stop13h 56mSun Country Air
Fri 6/217:50 pmIAD - STL
1 stop25h 11mSun Country Air
Deal found 6/9$315

One-way flights to District of Columbia from St. Louis

Search for one-way flight options from St. Louis to District of Columbia. 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 3,080,152 searches. Data last updated June 10, 2024.
Users traveling one-way from St. Louis to District of Columbia can select one of these great deals. Those seeking round-trip flights from St. Louis to District of Columbia should utilize the search form at the the top of the page.
Fri 6/215:36 pmSTL - DCA
1 stop17h 29mFrontier
Deal found 6/9$73
Tue 7/163:47 pmSTL - DCA
1 stop19h 22mFrontier
Deal found 6/8$75
Mon 7/87:51 pmSTL - DCA
1 stop15h 18mFrontier
Deal found 6/10$83
Fri 7/55:49 pmSTL - DCA
Nonstop2h 00mAmerican Airlines
Deal found 6/9$84
Thu 7/46:09 amSTL - DCA
Nonstop2h 02mAmerican Airlines
Deal found 6/8$85
Mon 7/18:22 pmSTL - DCA
1 stop14h 43mFrontier
Deal found 6/10$93
Thu 7/44:02 pmSTL - DCA
1 stop4h 38mDelta
Deal found 6/8$94
Mon 7/14:02 pmSTL - IAD
1 stop6h 57mDelta
Deal found 6/10$94
Tue 7/165:49 pmSTL - DCA
Nonstop2h 00mAmerican Airlines
Deal found 6/8$95

Find flights from St. Louis to District of Columbia within your budget

Customize your flight search to find flights from St. Louis to District of Columbia 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 3,080,152 searches. Data last updated June 10, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$153 - $297

Route

Depart

Return

Price

Lambert-St LouisWashington, D.C. Reagan-National

STL - DCA

STLDCA

Lambert-St Louis

Wed 7/10

1 stop15h 07m

Washington, D.C. Reagan-National

Tue 7/16

1 stop15h 26m

$153

Lambert-St LouisWashington, D.C. Reagan-National

STL - DCA

STLDCA

Lambert-St Louis

Mon 7/8

1 stop15h 18m

Washington, D.C. Reagan-National

Tue 7/16

1 stop27h 25m

$161

Lambert-St LouisWashington, D.C. Reagan-National

STL - DCA

STLDCA

Lambert-St Louis

Fri 6/21

1 stop17h 29m

Washington, D.C. Reagan-National

Sun 6/23

1 stop8h 37m

$162

Lambert-St LouisWashington, D.C. Reagan-National

STL - DCA

STLDCA

Lambert-St Louis

Wed 8/21

Nonstop1h 59m

Washington, D.C. Reagan-National

Wed 9/4

Nonstop2h 20m

$179

Lambert-St LouisWashington, D.C. Reagan-National

STL - DCA

STLDCA

Lambert-St Louis

Mon 7/1

1 stop5h 21m

Washington, D.C. Reagan-National

Fri 7/5

1 stop6h 56m

$188

Lambert-St LouisWashington, D.C. Dulles Intl

STL - IAD

STLIAD

Lambert-St Louis

Tue 7/9

Nonstop2h 10m

Washington, D.C. Dulles Intl

Sat 7/13

1 stop5h 23m

$209

Lambert-St LouisWashington, D.C. Reagan-National

STL - DCA

STLDCA

Lambert-St Louis

Mon 8/12

Nonstop2h 05m

Washington, D.C. Reagan-National

Thu 8/15

Nonstop2h 10m

$249

Lambert-St LouisWashington, D.C. Dulles Intl

STL - IAD

STLIAD

Lambert-St Louis

Fri 7/12

1 stop27h 12m

Washington, D.C. Dulles Intl

Sun 7/14

1 stop6h 22m

$265

Lambert-St LouisWashington, D.C. Dulles Intl

STL - IAD

STLIAD

Lambert-St Louis

Fri 7/26

1 stop15h 23m

Washington, D.C. Dulles Intl

Mon 7/29

3 stops22h 29m

$297

Flights are sorted by cheapest first

Deals found on 6/9

No data available for this route at this time. Please check back soon.

Best time to book a flight from St. Louis to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing District of Columbia

Get insights into the airlines that provide service to District of Columbia. 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 District of Columbia. Reviews last updated June 10, 2024.
Read reviews from past customers who have flown American Airlines, United Airlines and Sun Country Air from St. Louis to District of Columbia. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
5,897 reviews

Boarding

8.3

Food

7.3

Entertainment

7.8

Comfort

8.1

Crew

8.7

Overall

8.2

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Southwest
8.2
Very good
5,897 reviews
Southwest
8.2
Very good
5,897 reviews

Boarding

8.3

Food

7.3

Entertainment

7.8

Comfort

8.1

Crew

8.7

Overall

8.2

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

8.0
Very good
10,295 reviews
Southwest
8.2
Very good
5,897 reviews

Boarding

8.3

Food

7.3

Entertainment

7.8

Comfort

8.1

Crew

8.7

Overall

8.2

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

7.4
Good
10,647 reviews
Southwest
8.2
Very good
5,897 reviews

Boarding

8.3

Food

7.3

Entertainment

7.8

Comfort

8.1

Crew

8.7

Overall

8.2

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

7.3
Good
14,138 reviews
Southwest
8.2
Very good
5,897 reviews

Boarding

8.3

Food

7.3

Entertainment

7.8

Comfort

8.1

Crew

8.7

Overall

8.2

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

7.2
Good
588 reviews
Southwest
8.2
Very good
5,897 reviews

Boarding

8.3

Food

7.3

Entertainment

7.8

Comfort

8.1

Crew

8.7

Overall

8.2

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to District of Columbia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from St. Louis to District of Columbia?

    If you book a flight to District of Columbia from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.

  • Can I find flights from St. Louis to District of Columbia for under $200 on Cheapflights?

    Yes, there are multiple flights from St. Louis to District of Columbia for under $200. The cheapest flight booked recently is on Frontier for just $153, but on average you can expect to pay $189.

  • Are there nonstop flights from St. Louis to District of Columbia for under $200 on Cheapflights?

    Cheapflights has at least 20 direct flights from St. Louis to District of Columbia under $200. A good price for a nonstop flight from St. Louis to District of Columbia is less than $262.

  • Are there last-minute flights available from St. Louis to District of Columbia for under $300?

    There are currently 20+ open flights from St. Louis to District of Columbia within the next 7 days for less than $300.

  • What are the cheapest airlines to fly from St. Louis to District of Columbia one-way?

    The cheapest airlines for a one-way flight from St. Louis to District of Columbia are Frontier ($73), American Airlines ($84), and Delta ($94).

  • What are the most reliable airlines from St. Louis to District of Columbia?

    Consider Avianca (95%), Copa Airlines (95%) or Scandinavian Airlines (93%) when booking your flight. These represent the most reliable airlines when flying from St. Louis to District of Columbia.

  • What are the cheapest flights from St. Louis to District of Columbia?

    Looking for the cheapest flight from St. Louis to District of Columbia? While on average our users pay $1,103, our data indicates the cheapest price to be $135. The most popular route (Lambert-St Louis - Washington, D.C. Reagan-National), is priced around $166.

  • What does STL to IAD mean?

    This is defined as Lambert-St Louis Airport (STL) and Washington, D.C. Dulles Intl Airport (IAD). Codes like Washington, D.C. Dulles Intl Airport are often used to just call airports uniquely. Ready for more IATA code knowledge? These are related airports for your current travel destination: Baltimore/Washington Airport (BWI), Washington, D.C. Reagan-National Airport (DCA).

  • Can I find deals for flights from St. Louis to District of Columbia that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to District of Columbia 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 St. Louis to District of Columbia with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to District of Columbia 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 St. Louis to District of Columbia that include hotel bookings?

    Yes. In addition to deals on St. Louis to District of Columbia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to District of Columbia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to District of Columbia.

  • Can I find deals for business class flights from St. Louis to District of Columbia?

    Yes. Cheapflights offers flight deals from St. Louis to District of Columbia 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 St. Louis to District of Columbia that allow pets onboard?

    Many airlines flying from St. Louis to District of Columbia 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 St. Louis to District of Columbia?

    Yes, you can often find last-minute deals on St. Louis to District of Columbia 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 St. Louis to District of Columbia flight deals updated?

    The St. Louis to District of Columbia flight deals you see on this page were last updated on 6/10.

  • What are the most popular airlines that fly from St. Louis to District of Columbia?

  • What is the cheapest month to book a flight from St. Louis to District of Columbia?

    Currently, September is the cheapest month in which you can book a flight from St. Louis to District of Columbia (average of $278). Flying from St. Louis to District of Columbia in June is currently the most expensive (average of $382). 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.

See more FAQs

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Alternative routes for St. Louis to District of Columbia
See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from St. Louis to District of Columbia

Discover the top 5 airlines that operate flights from St. Louis to District of Columbia. 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 3,080,152 searches. Data last updated June 10, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$100Average$179FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$142Average$176FlexibilityNo cancel feeOn-time65%
DeltaCheapest$165Average$303FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$191Average$348FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$195Average$379FlexibilityNo cancel feeOn-time69%

Search flights from St. Louis to District of Columbia by cabin class

Find flights from St. Louis to District of Columbia, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from St. Louis to District of Columbia

Find hourly flight availability from St. Louis to District of Columbia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 10, 2024.
9%of flight departuresEarly morningMidnight to 6 am
73%of flight departuresMorning6 am to noon
13%of flight departuresAfternoonNoon to 6 pm
5%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM
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