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$724+ Cheap flights from St. Louis (STL) to Osaka (OSA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
STL — OSA
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
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 November 20, 2024.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Popular in

June

Cheapest in

January

Round-trip from

$724
(Gurufare)
Provider with most accurate pricing for Lambert-St Louis-Osaka (OSA) flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Osaka (OSA) flights.
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High demand for flights, 33% potential price rise
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Best time to find cheap flights, 40% potential price drop
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From Lambert-St Louis to Osaka (OSA)
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Find flight deals from St. Louis to Osaka

Cheapest flights from St. Louis to Osaka
Explore the most affordable flight options available from St. Louis to Osaka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This United Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/67:00 amSTL - KIX
1 stop18h 35mUnited Airlines
Sat 12/146:30 pmKIX - STL
2 stops30h 46mUnited Airlines
Deal found 11/19$769
This Ovago deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/66:25 amSTL - ITM
2 stops20h 10mJapan Airlines
Sat 12/147:35 pmITM - STL
2 stops43h 37mJapan Airlines
Deal found 11/19$810
This ANA deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ANA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/68:05 amSTL - ITM
2 stops21h 15mANA
Sat 12/147:30 amITM - STL
2 stops19h 49mANA
Deal found 11/19$1,549
This oojo deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/66:25 amSTL - KIX
3 stops41h 30mCathay Pacific
Sat 12/149:50 amKIX - STL
2 stops45h 35mCathay Pacific
Deal found 11/19$1,842
This Travelocity deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/257:04 amSTL - KIX
2 stops24h 16mMultiple Airlines
Wed 1/810:50 amKIX - STL
2 stops42h 03mMultiple Airlines
Deal found 11/19$1,897
This United Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/266:00 amSTL - ITM
2 stops21h 10mUnited Airlines
Thu 1/91:00 pmITM - STL
2 stops22h 02mUnited Airlines
Deal found 11/19$1,980
This StudentUniverse deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/246:00 amSTL - ITM
2 stops23h 20mUndisclosed Carrier
Wed 1/82:00 pmITM - STL
2 stops21h 02mUndisclosed Carrier
Deal found 11/19$2,110
This ANA deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ANA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2410:35 amSTL - ITM
2 stops19h 00mMultiple Airlines
Tue 1/72:05 pmITM - STL
2 stops17h 26mMultiple Airlines
Deal found 11/19$2,633
This Gurufare deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/197:04 amSTL - KIX
2 stops24h 16mJapan Airlines
Sat 1/45:50 pmKIX - STL
1 stop20h 37mJapan Airlines
Deal found 11/19$6,907

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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Wed 2/5

5:40 am-2:15 pm

2 stops41h 35m

Osaka Kansai Intl

Fri 2/21

6:45 am-11:25 am

2 stops19h 40m

$724

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Fri 12/6

7:00 am-4:35 pm

1 stop18h 35m

Osaka Kansai Intl

Sat 12/14

6:30 pm-10:16 am

2 stops30h 46m

$769

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Fri 12/6

6:25 am-5:35 pm

2 stops20h 10m

Osaka Itami

Sat 12/14

7:35 pm-12:12 am

2 stops43h 37m

$810

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Thu 2/6

7:00 am-4:35 pm

1 stop18h 35m

Osaka Kansai Intl

Fri 2/21

6:30 pm-6:56 pm

1 stop15h 26m

$1,036

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Sun 1/5

6:25 am-8:35 pm

2 stops23h 10m

Osaka Itami

Sat 1/25

1:00 pm-8:02 pm

2 stops22h 02m

$1,126

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Sat 4/5

7:02 pm-2:55 pm

3 stops53h 53m

Osaka Kansai Intl

Sat 4/19

4:20 pm-10:54 pm

3 stops44h 34m

$1,550

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Sat 4/12

4:30 pm-4:20 pm

2 stops33h 50m

Osaka Kansai Intl

Sat 4/26

6:00 pm-11:18 pm

2 stops19h 18m

$1,613

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Thu 12/26

6:00 am-6:10 pm

2 stops21h 10m

Osaka Itami

Thu 1/9

1:00 pm-8:02 pm

2 stops22h 02m

$1,980

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Tue 12/24

6:00 am-8:20 pm

2 stops23h 20m

Osaka Itami

Wed 1/8

2:00 pm-8:02 pm

2 stops21h 02m

$2,110

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Tue 12/24

10:35 am-8:35 pm

2 stops19h 00m

Osaka Itami

Tue 1/7

2:05 pm-4:31 pm

2 stops17h 26m

$2,633

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 14 results
1
2

Compare providers for flights from St. Louis to Osaka

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Osaka in November.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Osaka flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on St. Louis-Osaka flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from St. Louis-Osaka flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Osaka flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Osaka flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Osaka

Have a flexible travel schedule? Discover the best time to fly to Osaka 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.

Travel insights for flights from St. Louis to Osaka

Get recent, data-driven insights about flights from St. Louis to Osaka including ideal travel times, pricing trends, and more.

Rainfall in Osaka by month

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

In terms of precipitation, rainfall in Osaka ranges from 1.6 - 7.9 inches per month. June is typically the wettest month, when rainfall can reach 7.9 in. January is typically the driest time to visit Osaka when rainfall is around 1.6 in.

Temperature in Osaka by month

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

If weather is an important factor for your trip to Osaka, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 42.8 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 November 20, 2024.
See what other customers who have flown with Japan Airlines and United Airlines 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
8.4
Very good
833 reviews

Overall

8.4

Crew

8.7

Comfort

8.2

Boarding

8.6

Entertainment

7.9

Food

7.7

Reviews

1 / 10

I hate the assigned seat from Japan to Chicago it was a long flight and I was assigned in the most uncomfortable area, the worst is I can't check in online makes it more worse.

ANA
8.4
Very good
833 reviews
ANA
8.4
Very good
833 reviews

Overall

8.4

Crew

8.7

Comfort

8.2

Boarding

8.6

Entertainment

7.9

Food

7.7

Reviews

1 / 10

I hate the assigned seat from Japan to Chicago it was a long flight and I was assigned in the most uncomfortable area, the worst is I can't check in online makes it more worse.

Japan Airlines
8.3
Very good
1,460 reviews
ANA
8.4
Very good
833 reviews

Overall

8.4

Crew

8.7

Comfort

8.2

Boarding

8.6

Entertainment

7.9

Food

7.7

Reviews

1 / 10

I hate the assigned seat from Japan to Chicago it was a long flight and I was assigned in the most uncomfortable area, the worst is I can't check in online makes it more worse.

Cathay Pacific
7.6
Good
878 reviews
ANA
8.4
Very good
833 reviews

Overall

8.4

Crew

8.7

Comfort

8.2

Boarding

8.6

Entertainment

7.9

Food

7.7

Reviews

1 / 10

I hate the assigned seat from Japan to Chicago it was a long flight and I was assigned in the most uncomfortable area, the worst is I can't check in online makes it more worse.

Qatar Airways
7.5
Good
3,831 reviews
ANA
8.4
Very good
833 reviews

Overall

8.4

Crew

8.7

Comfort

8.2

Boarding

8.6

Entertainment

7.9

Food

7.7

Reviews

1 / 10

I hate the assigned seat from Japan to Chicago it was a long flight and I was assigned in the most uncomfortable area, the worst is I can't check in online makes it more worse.

United Airlines
7.4
Good
9,171 reviews
ANA
8.4
Very good
833 reviews

Overall

8.4

Crew

8.7

Comfort

8.2

Boarding

8.6

Entertainment

7.9

Food

7.7

Reviews

1 / 10

I hate the assigned seat from Japan to Chicago it was a long flight and I was assigned in the most uncomfortable area, the worst is I can't check in online makes it more worse.

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.

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

    According to our current data, Japan Airlines ($724), United Airlines ($769), and ANA ($1,126) offers the cheapest pricing from St. Louis to Osaka. Users have found that Japan Airlines is 50% cheaper than the other options available to this destination.

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

    $13,293 is the cheapest one-way deal found within the past few days, from Cathay Pacific. You may also be able to find cheap deals on Lufthansa and ANA, with prices starting from $14,004 and $14,025, respectively.

  • 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.

  • What is the cheapest month to book a flight from St. Louis to Osaka?

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Osaka (average of $975). Flying from St. Louis to Osaka in July is currently the most expensive (average of $1,284). 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 Osaka

See prices for flight routes from nearby airports that may be better suited for you.
St. Louis to Kansai Intl flights
Kansas City to Kansai Intl flights
Kansas City to Itami 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$845Average$1,178FlexibilityNo cancel feeOn-time71%
Japan AirlinesCheapest$862Average$1,313FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$1,580Average$1,861FlexibilityNo cancel feeOn-time69%
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