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Cheap flights from St. Louis (STL) to Osaka (OSA) from $1,056

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 9/8. 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
Jun 3 — Jun 101
From?
To?
Mon 6/3
Mon 6/10
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 29, 2024.

Popular in

June

Cheapest in

February

Average price

$1,939

Round-trip from

$1,109
High demand for flights, 26% potential price rise
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Best time to find cheap flights, 32% 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 $1,594. You can even find prices in February for less than $1,594, 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 35%.

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 2,696,634 searches. Data last updated May 29, 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.
Mon 8/197:00 amSTL - KIX
1 stop21h 55mJapan Airlines
Tue 12/179:10 pmKIX - STL
2 stops41h 47mJapan Airlines
Deal found 5/28$1,127
Mon 8/197:00 amSTL - ITM
2 stops22h 50mJapan Airlines
Tue 12/1710:30 amITM - STL
2 stops28h 27mJapan Airlines
Deal found 5/28$1,131
Mon 8/197:12 amSTL - KIX
2 stops24h 58mJapan Airlines
Tue 12/176:50 amKIX - STL
2 stops32h 07mJapan Airlines
Deal found 5/28$1,141
Mon 8/197:00 amSTL - KIX
1 stop21h 55mJapan Airlines
Tue 12/175:50 pmKIX - STL
1 stop20h 09mJapan Airlines
Deal found 5/28$1,957
Wed 6/266:29 amSTL - KIX
1 stop22h 26mJapan Airlines
Thu 7/43:05 pmKIX - STL
2 stops21h 53mJapan Airlines
Deal found 5/27$2,070
Wed 6/266:29 amSTL - KIX
1 stop22h 26mJapan Airlines
Thu 7/43:05 pmKIX - STL
2 stops21h 53mJapan Airlines
Deal found 5/28$2,085
Wed 6/266:29 amSTL - KIX
1 stop22h 26mJapan Airlines
Thu 7/45:45 pmKIX - STL
1 stop19h 13mJapan Airlines
Deal found 5/27$2,666
Wed 6/266:29 amSTL - KIX
1 stop22h 26mJapan Airlines
Thu 7/45:45 pmKIX - STL
1 stop19h 13mJapan Airlines
Deal found 5/28$2,672
Sat 7/276:29 amSTL - KIX
1 stop22h 26mJapan Airlines
Sat 8/36:40 amKIX - STL
2 stops20h 36mJapan Airlines
Deal found 5/27$4,298

Cheap United Airlines flights from St. Louis to Osaka

Explore cheap flight options specifically provided by United 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 2,696,634 searches. Data last updated May 29, 2024.
Take a gander at the lowest prices we've found on United Airlines flights from St. Louis to Osaka. Check back soon if you're not seeing flights that suit your needs.
Wed 6/263:10 pmSTL - KIX
2 stops33h 35mUnited Airlines
Thu 7/44:50 pmKIX - STL
2 stops37h 38mUnited Airlines
Deal found 5/28$2,056
Wed 6/2610:15 amSTL - ITM
2 stops39h 50mUnited Airlines
Thu 7/42:00 pmITM - STL
3 stops40h 28mUnited Airlines
Deal found 5/28$2,059
Wed 6/261:10 pmSTL - KIX
2 stops35h 35mUnited Airlines
Thu 7/48:25 amKIX - STL
3 stops46h 03mUnited Airlines
Deal found 5/28$2,060
Wed 6/261:10 pmSTL - KIX
2 stops35h 35mUnited Airlines
Thu 7/48:25 amKIX - STL
3 stops46h 03mUnited Airlines
Deal found 5/27$2,061
Wed 6/2610:15 amSTL - ITM
2 stops39h 50mUnited Airlines
Thu 7/42:00 pmITM - STL
3 stops40h 28mUnited Airlines
Deal found 5/27$2,091

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 2,696,634 searches. Prices were last updated on May 29, 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.
Wed 6/2611:00 amSTL - ITM
2 stops41h 55mMultiple Airlines
Thu 7/42:00 pmITM - STL
2 stops20h 01mMultiple Airlines
Deal found 5/27$1,908
Wed 6/264:05 pmSTL - ITM
2 stops37h 45mMultiple Airlines
Thu 7/43:00 pmITM - STL
2 stops19h 01mMultiple Airlines
Deal found 5/27$1,968
Wed 6/263:10 pmSTL - KIX
2 stops33h 35mUnited Airlines
Thu 7/44:50 pmKIX - STL
2 stops37h 38mUnited Airlines
Deal found 5/28$2,056
Wed 6/2610:15 amSTL - ITM
2 stops39h 50mUnited Airlines
Thu 7/42:00 pmITM - STL
3 stops40h 28mUnited Airlines
Deal found 5/28$2,059
Wed 6/261:10 pmSTL - KIX
2 stops35h 35mUnited Airlines
Thu 7/48:25 amKIX - STL
3 stops46h 03mUnited Airlines
Deal found 5/28$2,060
Wed 6/261:10 pmSTL - KIX
2 stops35h 35mUnited Airlines
Thu 7/48:25 amKIX - STL
3 stops46h 03mUnited Airlines
Deal found 5/27$2,061
Wed 6/266:29 amSTL - KIX
1 stop22h 26mJapan Airlines
Thu 7/43:05 pmKIX - STL
2 stops21h 53mJapan Airlines
Deal found 5/27$2,070
Wed 6/266:29 amSTL - KIX
1 stop22h 26mJapan Airlines
Thu 7/43:05 pmKIX - STL
2 stops21h 53mJapan Airlines
Deal found 5/28$2,085
Wed 6/2610:15 amSTL - ITM
2 stops39h 50mUnited Airlines
Thu 7/42:00 pmITM - STL
3 stops40h 28mUnited Airlines
Deal found 5/27$2,091

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 2,696,634 searches. Data last updated May 29, 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.
Sun 9/87:00 amSTL - KIX
1 stop21h 55mAmerican Airlines
Sat 9/215:45 pmKIX - STL
1 stop19h 15mAmerican Airlines
Deal found 5/27$1,056
Sun 9/85:29 amSTL - KIX
2 stops23h 26mAmerican Airlines
Sat 9/215:45 pmKIX - STL
2 stops32h 13mAmerican Airlines
Deal found 5/27$1,058
Sun 9/87:00 amSTL - KIX
1 stop21h 55mAmerican Airlines
Sat 9/215:45 pmKIX - STL
2 stops28h 36mAmerican Airlines
Deal found 5/27$1,059
Mon 8/197:00 amSTL - KIX
1 stop21h 55mJapan Airlines
Tue 12/179:10 pmKIX - STL
2 stops41h 47mJapan Airlines
Deal found 5/28$1,127
Mon 8/197:00 amSTL - ITM
2 stops22h 50mJapan Airlines
Tue 12/1710:30 amITM - STL
2 stops28h 27mJapan Airlines
Deal found 5/28$1,131
Mon 8/197:12 amSTL - KIX
2 stops24h 58mJapan Airlines
Tue 12/176:50 amKIX - STL
2 stops32h 07mJapan Airlines
Deal found 5/28$1,141
Thu 8/1512:00 pmSTL - KIX
2 stops38h 55mMultiple Airlines
Thu 8/227:05 pmKIX - STL
3 stops31h 19mMultiple Airlines
Deal found 5/27$1,464
Thu 8/157:05 amSTL - KIX
2 stops25h 05mMultiple Airlines
Thu 8/2212:35 pmKIX - STL
2 stops23h 00mMultiple Airlines
Deal found 5/27$1,467
Sun 9/87:00 amSTL - KIX
3 stops41h 55mMultiple Airlines
Sat 9/219:10 amKIX - STL
2 stops37h 50mMultiple Airlines
Deal found 5/27$1,674

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 2,696,634 searches. Data last updated May 29, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,056 - $2,056

Route

Depart

Return

Price

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Sun 9/8

1 stop21h 55m

Osaka Kansai Intl

Sat 9/21

1 stop19h 15m

$1,056

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Sun 9/8

2 stops23h 26m

Osaka Kansai Intl

Sat 9/21

2 stops32h 13m

$1,058

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Sun 9/8

1 stop21h 55m

Osaka Kansai Intl

Sat 9/21

2 stops28h 36m

$1,059

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Mon 8/19

1 stop21h 55m

Osaka Kansai Intl

Tue 12/17

2 stops41h 47m

$1,127

Lambert-St LouisOsaka Itami

STL - ITM

STLITM

Lambert-St Louis

Mon 8/19

2 stops22h 50m

Osaka Itami

Tue 12/17

2 stops28h 27m

$1,131

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Mon 8/19

2 stops24h 58m

Osaka Kansai Intl

Tue 12/17

2 stops32h 07m

$1,141

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Thu 8/15

2 stops38h 55m

Osaka Kansai Intl

Thu 8/22

3 stops31h 19m

$1,464

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Sun 9/8

3 stops41h 55m

Osaka Kansai Intl

Sat 9/21

3 stops41h 28m

$1,733

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Wed 6/26

2 stops33h 35m

Osaka Kansai Intl

Thu 7/4

2 stops37h 38m

$2,056

Flights are sorted by cheapest first

Deals found on 5/27

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 26, 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

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.

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 29, 2024.
See what other customers who have flown with Japan Airlines, United Airlines and American 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.
Japan Airlines
8.3
Very good
1,472 reviews
Check prices

Comfort

8.2

Boarding

8.4

Crew

8.7

Food

7.8

Overall

8.3

Entertainment

7.8

Reviews

1 / 10

I travel frequently but it was my first JAL flight and it turned out to be a good experience.

Japan Airlines
8.3
Very good
1,472 reviews
Japan Airlines
8.3
Very good
1,472 reviews
Check prices

Comfort

8.2

Boarding

8.4

Crew

8.7

Food

7.8

Overall

8.3

Entertainment

7.8

Reviews

1 / 10

I travel frequently but it was my first JAL flight and it turned out to be a good experience.

Cathay Pacific
7.8
Good
1,056 reviews
Japan Airlines
8.3
Very good
1,472 reviews
Check prices

Comfort

8.2

Boarding

8.4

Crew

8.7

Food

7.8

Overall

8.3

Entertainment

7.8

Reviews

1 / 10

I travel frequently but it was my first JAL flight and it turned out to be a good experience.

United Airlines
7.4
Good
10,799 reviews
Japan Airlines
8.3
Very good
1,472 reviews
Check prices

Comfort

8.2

Boarding

8.4

Crew

8.7

Food

7.8

Overall

8.3

Entertainment

7.8

Reviews

1 / 10

I travel frequently but it was my first JAL flight and it turned out to be a good experience.

American Airlines
7.3
Good
14,316 reviews
Japan Airlines
8.3
Very good
1,472 reviews
Check prices

Comfort

8.2

Boarding

8.4

Crew

8.7

Food

7.8

Overall

8.3

Entertainment

7.8

Reviews

1 / 10

I travel frequently but it was my first JAL flight and it turned out to be a good experience.

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 $1,100 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Osaka for under $1,100. The cheapest flight booked recently is on American Airlines for just $1,056, but on average you can expect to pay $1,602.

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

    According to our current data, American Airlines ($1,056), Japan Airlines ($1,127), and Cathay Pacific ($1,733) offers the cheapest pricing from St. Louis to Osaka. Users have found that American Airlines is 33% cheaper than the other options available to this destination.

  • 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 5/28.

  • When is the best time to book a flight from St. Louis to Osaka?

    Currently, February is the cheapest month in which you can book a flight from St. Louis to Osaka (average of $1,052). 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.

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 2,696,634 searches. Data last updated May 29, 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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