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Cheap flights from St. Louis (STL) to Osaka (OSA) from $1,139

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.
STL — OSA
May 21 — May 281
From?
To?
Tue 5/21
Tue 5/28
1 adult, Economy
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Cheap flight deals from St. Louis to Osaka

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Osaka (OSA). 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

February

Average price

$1,939

Round-trip from

$1,113
High demand for flights, 20% potential price rise
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Best time to find cheap flights, 31% potential price drop
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Average for round-trip flights in May 2024
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From Lambert-St Louis to Osaka (OSA)
Search Deals

What is the cheapest day to fly round-trip from St. Louis to Osaka?

Wednesday flights are found to be more expensive to fly from St. Louis to Osaka. 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 Osaka.

What is the cheapest month to fly from St. Louis to Osaka?

The best pricing can be found in the month of February. Prices to Osaka from St. Louis average $1,579. You can even find prices in February for less than $1,579, as users have found deals to Osaka from as low as $1,083. The month of June appears to be one of the more expensive times to travel to Osaka from St. Louis. Flying in the targeted month can save you up to 25%.

When is the cheapest time to fly from St. Louis to Osaka (STL - OSA)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. Louis to Osaka as you normally would.

Cheap Japan Airlines flights from St. Louis to Osaka

Explore cheap flight options specifically provided by Japan Airlines for the route between St. Louis and Osaka. 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.
Take a peek at the cheapest Japan Airlines flights we've detected traveling from St. Louis to Osaka. Make sure to double check the flight details before booking.
Sat 10/125:30 pmSTL - KIX
1 stop35h 25mJapan Airlines
Tue 10/153:00 pmKIX - STL
2 stops38h 40mJapan Airlines
Deal found 5/15$1,495
Sat 6/226:29 amSTL - KIX
1 stop22h 26mJapan Airlines
Sat 7/63:05 pmKIX - STL
2 stops22h 02mJapan Airlines
Deal found 5/15$2,701
Sat 6/226:29 amSTL - KIX
1 stop22h 26mJapan Airlines
Sat 7/65:45 pmKIX - STL
1 stop19h 22mJapan Airlines
Deal found 5/15$3,096

Cheap Air Canada flights from St. Louis to Osaka

Explore cheap flight options specifically provided by Air Canada for the route between St. Louis and Osaka. 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.
Take a gander at the lowest prices we've found on Air Canada flights from St. Louis to Osaka. Check back soon if you're not seeing flights that suit your needs.
Sat 10/194:05 pmSTL - ITM
2 stops36h 50mAir Canada
Wed 10/232:15 pmITM - STL
2 stops39h 05mAir Canada
Deal found 5/14$1,417
Sat 10/126:30 amSTL - KIX
2 stops19h 50mAir Canada
Tue 10/157:00 pmKIX - STL
2 stops40h 05mAir Canada
Deal found 5/14$1,449
Sat 10/126:30 amSTL - KIX
2 stops19h 50mAir Canada
Tue 10/157:00 pmKIX - STL
2 stops40h 05mAir Canada
Deal found 5/15$1,510

Cheap St. Louis to Osaka flights in May & June 2024

Find cheap flight options from St. Louis to Osaka 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 St. Louis to Osaka in 2024. For more flight deals, be sure to check back very soon.
Sat 6/226:30 amSTL - KIX
2 stops19h 50mMultiple Airlines
Sat 7/67:00 pmKIX - STL
2 stops34h 21mMultiple Airlines
Deal found 5/15$1,865
Wed 6/266:29 amSTL - KIX
1 stop22h 26mMultiple Airlines
Wed 7/312:35 pmKIX - STL
2 stops24h 54mMultiple Airlines
Deal found 5/16$1,877
Wed 6/269:47 amSTL - KIX
2 stops22h 23mMultiple Airlines
Wed 7/312:35 pmKIX - STL
2 stops24h 54mMultiple Airlines
Deal found 5/16$1,963
Wed 6/266:30 amSTL - ITM
2 stops23h 45mANA
Wed 7/311:00 amITM - STL
2 stops22h 37mANA
Deal found 5/16$2,065
Sat 6/2211:38 amSTL - ITM
2 stops42h 37mANA
Sat 7/62:00 pmITM - STL
2 stops19h 37mANA
Deal found 5/15$2,172
Sat 6/224:05 pmSTL - KIX
3 stops30h 35mMultiple Airlines
Sat 7/67:00 pmKIX - STL
3 stops35h 32mMultiple Airlines
Deal found 5/15$2,342
Wed 6/261:55 pmSTL - KIX
3 stops29h 45mMultiple Airlines
Wed 7/37:30 amKIX - STL
2 stops27h 35mMultiple Airlines
Deal found 5/16$2,495
Wed 6/264:45 pmSTL - ITM
3 stops35h 50mMultiple Airlines
Wed 7/32:15 pmITM - STL
2 stops20h 50mMultiple Airlines
Deal found 5/16$2,507
Wed 6/261:55 pmSTL - KIX
3 stops29h 45mMultiple Airlines
Wed 7/36:00 pmKIX - STL
3 stops35h 21mMultiple Airlines
Deal found 5/16$2,539

St. Louis to Osaka 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Osaka 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 St. Louis to Osaka in 2024. For more flight deals, be sure to check back very soon.
Sat 10/194:05 pmSTL - ITM
2 stops36h 50mAir Canada
Wed 10/232:15 pmITM - STL
2 stops39h 05mAir Canada
Deal found 5/14$1,417
Sat 10/126:30 amSTL - KIX
2 stops19h 50mAir Canada
Tue 10/157:00 pmKIX - STL
2 stops40h 05mAir Canada
Deal found 5/14$1,449
Sat 10/125:30 pmSTL - KIX
1 stop35h 25mJapan Airlines
Tue 10/159:15 pmKIX - STL
2 stops32h 25mJapan Airlines
Deal found 5/14$1,495
Sat 10/126:30 amSTL - KIX
2 stops19h 50mAir Canada
Tue 10/157:00 pmKIX - STL
2 stops40h 05mAir Canada
Deal found 5/15$1,510
Sat 6/226:30 amSTL - KIX
2 stops19h 50mMultiple Airlines
Sat 7/67:00 pmKIX - STL
2 stops34h 21mMultiple Airlines
Deal found 5/15$1,865
Wed 6/266:29 amSTL - KIX
1 stop22h 26mMultiple Airlines
Wed 7/312:35 pmKIX - STL
2 stops24h 54mMultiple Airlines
Deal found 5/16$1,877
Wed 6/269:47 amSTL - KIX
2 stops22h 23mMultiple Airlines
Wed 7/312:35 pmKIX - STL
2 stops24h 54mMultiple Airlines
Deal found 5/16$1,963
Wed 6/266:30 amSTL - ITM
2 stops23h 45mANA
Wed 7/311:00 amITM - STL
2 stops22h 37mANA
Deal found 5/16$2,065
Sat 10/127:15 amSTL - KIX
1 stop17h 35mUnited Airlines
Tue 10/154:50 pmKIX - STL
1 stop21h 40mUnited Airlines
Deal found 5/14$2,132

One-way flights to Osaka from St. Louis

Search for one-way flight options from St. Louis to Osaka. 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.
If you're seeking multiple options on one-way flights from St. Louis to Osaka, be sure to check out these deals, which are updated often. Users in need of a round-trip flight from St. Louis to Osaka instead should update the search form at the top of page.
Fri 6/148:01 amSTL - ITM
2 stops21h 49mAmerican Airlines
Deal found 5/15$1,139
Fri 6/143:07 pmSTL - ITM
3 stops50h 58mMultiple Airlines
Deal found 5/15$1,144
Fri 6/148:01 amSTL - KIX
2 stops34h 19mJapan Airlines
Deal found 5/15$1,218
Fri 6/146:29 amSTL - KIX
3 stops42h 26mCathay Pacific
Deal found 5/15$1,365

Find flights from St. Louis to Osaka within your budget

Customize your flight search to find flights from St. Louis to Osaka 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

$1,417 - $2,342

Route

Depart

Return

Price

Lambert-St LouisOsaka Itami

STL - ITM

STLITM

Lambert-St Louis

Sat 10/19

2 stops36h 50m

Osaka Itami

Wed 10/23

2 stops39h 05m

$1,417

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Sat 10/12

2 stops19h 50m

Osaka Kansai Intl

Tue 10/15

2 stops40h 05m

$1,449

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Sat 10/12

1 stop35h 25m

Osaka Kansai Intl

Tue 10/15

2 stops38h 40m

$1,495

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Sat 10/12

2 stops19h 50m

Osaka Kansai Intl

Tue 10/15

2 stops40h 05m

$1,510

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Sat 6/22

2 stops19h 50m

Osaka Kansai Intl

Sat 7/6

2 stops34h 21m

$1,865

Lambert-St LouisOsaka Itami

STL - ITM

STLITM

Lambert-St Louis

Wed 6/26

2 stops23h 45m

Osaka Itami

Wed 7/3

2 stops22h 37m

$2,065

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Sat 10/12

1 stop17h 35m

Osaka Kansai Intl

Tue 10/15

1 stop21h 40m

$2,132

Lambert-St LouisOsaka Itami

STL - ITM

STLITM

Lambert-St Louis

Sat 6/22

2 stops42h 37m

Osaka Itami

Sat 7/6

2 stops19h 37m

$2,172

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Sat 6/22

3 stops30h 35m

Osaka Kansai Intl

Sat 7/6

3 stops35h 32m

$2,342

Flights are sorted by cheapest first

Deals found on 5/14

When is the cheapest time to fly from St. Louis to Osaka?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Osaka. Price data was last updated on May 12, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Osaka flight should consider departing on Wednesday mornings when fares are most often at their lowest. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Osaka by month

Plan your trip from St. Louis to Osaka by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to Osaka is currently $1,217 while a round-trip flight costs $1,827. Price data was last updated on May 12, 2024.

Currently, February is the cheapest month in which you can book a flight from St. Louis to Osaka (average of $1,044). Flying from St. Louis to Osaka in July is currently the most expensive (average of $1,417). 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

$1,095

February

$1,044

March

$1,245

April

$1,201

May

$1,173

June

$1,233

July

$1,417

August

$1,218

September

$1,125

October

$1,186

November

$1,230

December

$1,279

Temperature and rainfall in Osaka by month

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

OSA

Temperature

42.8 - 84.2 °F

Reviews of airlines servicing Osaka

Get insights into the airlines that provide service to Osaka. 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 Osaka. Reviews last updated May 16, 2024.
See what other customers who have flown with Japan Airlines, Air Canada and ANA from St. Louis to Osaka have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.5
Very good
921 reviews
Check prices

Comfort

8.3

Overall

8.5

Boarding

8.6

Crew

8.8

Entertainment

8.0

Food

7.8

Reviews

1 / 10

Got me there and back on time. Except for a 30 min maintenance delay, but that meant more time for nap. Crew was super nice.

ANA
8.5
Very good
921 reviews
ANA
8.5
Very good
921 reviews
Check prices

Comfort

8.3

Overall

8.5

Boarding

8.6

Crew

8.8

Entertainment

8.0

Food

7.8

Reviews

1 / 10

Got me there and back on time. Except for a 30 min maintenance delay, but that meant more time for nap. Crew was super nice.

Japan Airlines
8.3
Very good
1,472 reviews
ANA
8.5
Very good
921 reviews
Check prices

Comfort

8.3

Overall

8.5

Boarding

8.6

Crew

8.8

Entertainment

8.0

Food

7.8

Reviews

1 / 10

Got me there and back on time. Except for a 30 min maintenance delay, but that meant more time for nap. Crew was super nice.

Cathay Pacific
7.8
Good
1,084 reviews
ANA
8.5
Very good
921 reviews
Check prices

Comfort

8.3

Overall

8.5

Boarding

8.6

Crew

8.8

Entertainment

8.0

Food

7.8

Reviews

1 / 10

Got me there and back on time. Except for a 30 min maintenance delay, but that meant more time for nap. Crew was super nice.

United Airlines
7.4
Good
10,924 reviews
ANA
8.5
Very good
921 reviews
Check prices

Comfort

8.3

Overall

8.5

Boarding

8.6

Crew

8.8

Entertainment

8.0

Food

7.8

Reviews

1 / 10

Got me there and back on time. Except for a 30 min maintenance delay, but that meant more time for nap. Crew was super nice.

American Airlines
7.3
Good
14,514 reviews
ANA
8.5
Very good
921 reviews
Check prices

Comfort

8.3

Overall

8.5

Boarding

8.6

Crew

8.8

Entertainment

8.0

Food

7.8

Reviews

1 / 10

Got me there and back on time. Except for a 30 min maintenance delay, but that meant more time for nap. Crew was super nice.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Osaka. 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 Osaka?

    Located just 12.7 mi from the city center, Lambert-St Louis is the airport most travelers will use when flying to Osaka from St. Louis. Booking flights from Lambert-St Louis (STL) to Osaka should be relatively easy as there are 0 daily outbound flights to Osaka from 3 different airlines.

  • Can I find flights from St. Louis to Osaka for under $1,500 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Osaka for under $1,500. The cheapest flight booked recently is on Air Canada for just $1,417, but on average you can expect to pay $2,100.

  • What are the cheapest airlines flying from St. Louis to Osaka round-trip?

    According to our current data, Air Canada ($1,417), Japan Airlines ($1,495), and ANA ($2,065) offers the cheapest pricing from St. Louis to Osaka. Users have found that Air Canada is 10% cheaper than the other options available to this destination.

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

    $1,139 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Japan Airlines and Cathay Pacific, with prices starting from $1,218 and $1,365, respectively.

  • What does STL to KIX mean?

    Lambert-St Louis Airport is STL and Osaka Kansai Intl Airport is KIX. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. Ready for more IATA code knowledge? These are related airports for your current travel destination: Osaka Itami Airport (ITM), Kobe Airport (UKB).

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

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

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

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

  • How can I find direct flights from St. Louis to Osaka?

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

  • Can I find deals for business class flights from St. Louis to Osaka?

    Yes. Cheapflights offers flight deals from St. Louis to Osaka 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 Osaka that allow pets onboard?

    Many airlines flying from St. Louis to Osaka 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 Osaka?

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

    The St. Louis to Osaka flight deals you see on this page were last updated on 5/16.

See more FAQs

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

Kansas City to Kansai Intl flights
Kansas City to Itami flights
St. Louis to Kansai Intl flights

Top 3 airlines flying from St. Louis to Osaka

Discover the top 3 airlines that operate flights from St. Louis to Osaka. 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
Japan AirlinesCheapest$985Average$1,088FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
ANACheapest$1,661Average$1,702FlexibilityNo cancel feeOn-time80%
Search ANA flights
United AirlinesCheapest$1,668Average$1,861FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
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Search flights from St. Louis to Osaka by cabin class

Find flights from St. Louis to Osaka, 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 St. Louis to Osaka?

When you search for this flight from St. Louis to Osaka, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Osaka?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from St. Louis to Osaka for you. Better yet — we are completely free to use.

Can Cheapflights find flights from St. Louis to Osaka with no change fees?

Certainly. Search results for flights to Osaka from St. Louis 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 St. Louis to Osaka become cheaper?

Yes! Start tracking prices for St. Louis to Osaka flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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