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Cheap flights from St. Louis (STL) to Osaka (OSA) from $1,002

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 9/21. 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 — OSA
Jun 4 — Jun 111
From?
To?
Tue 6/4
Tue 6/11
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 30, 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)
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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%.

What is the cheapest time of day to fly from STL to 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 2,784,634 searches. Data last updated May 30, 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 9/217:00 amSTL - KIX
1 stop21h 55mJapan Airlines
Sat 9/285:45 pmKIX - STL
1 stop19h 15mJapan Airlines
Deal found 5/29$1,002
Sat 9/218:00 amSTL - ITM
2 stops33h 35mJapan Airlines
Sat 9/282:35 pmITM - STL
2 stops22h 25mJapan Airlines
Deal found 5/29$1,016
Wed 6/266:29 amSTL - KIX
1 stop22h 26mJapan Airlines
Thu 7/45:45 pmKIX - STL
1 stop19h 13mJapan Airlines
Deal found 5/29$2,672
Sat 7/276:29 amSTL - KIX
1 stop22h 26mJapan Airlines
Sat 8/36:40 amKIX - STL
2 stops21h 46mJapan Airlines
Deal found 5/29$4,298
Sat 7/276:04 amSTL - KIX
2 stops26h 06mJapan Airlines
Sat 8/36:40 amKIX - STL
2 stops20h 36mJapan Airlines
Deal found 5/29$4,303

Cheap American Airlines flights from St. Louis to Osaka

Explore cheap flight options specifically provided by American 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 2,784,634 searches. Data last updated May 30, 2024.
Take a gander at the lowest prices we've found on American Airlines flights from St. Louis to Osaka. Check back soon if you're not seeing flights that suit your needs.
Sat 9/217:00 amSTL - KIX
1 stop21h 55mAmerican Airlines
Sat 9/285:45 pmKIX - STL
2 stops28h 36mAmerican Airlines
Deal found 5/29$1,006
Sun 9/87:00 amSTL - KIX
1 stop21h 55mAmerican Airlines
Sat 9/215:45 pmKIX - STL
1 stop19h 15mAmerican Airlines
Deal found 5/30$1,047
Sun 9/85:29 amSTL - KIX
2 stops23h 26mAmerican Airlines
Sat 9/215:45 pmKIX - STL
2 stops28h 36mAmerican Airlines
Deal found 5/30$1,049
Sun 9/87:00 amSTL - KIX
1 stop21h 55mAmerican Airlines
Sat 9/215:45 pmKIX - STL
2 stops32h 13mAmerican Airlines
Deal found 5/30$1,050
Sat 7/276:29 amSTL - KIX
1 stop22h 26mAmerican Airlines
Sat 8/35:45 pmKIX - STL
1 stop19h 22mAmerican Airlines
Deal found 5/29$7,406

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 2,784,634 searches. Prices were last updated on May 30, 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 6/263:10 pmSTL - KIX
2 stops33h 35mUnited Airlines
Thu 7/44:50 pmKIX - STL
2 stops31h 35mUnited Airlines
Deal found 5/29$2,056
Wed 6/2610:15 amSTL - ITM
2 stops39h 50mUnited Airlines
Thu 7/42:00 pmITM - STL
3 stops40h 28mUnited Airlines
Deal found 5/29$2,059
Wed 6/263:10 pmSTL - KIX
2 stops33h 35mUnited Airlines
Thu 7/48:25 amKIX - STL
3 stops46h 03mUnited Airlines
Deal found 5/29$2,060
Wed 6/266:29 amSTL - KIX
1 stop22h 26mMultiple Airlines
Thu 7/43:05 pmKIX - STL
2 stops21h 53mMultiple Airlines
Deal found 5/29$2,084
Wed 6/261:10 pmSTL - KIX
2 stops35h 35mUnited Airlines
Thu 7/44:50 pmKIX - STL
2 stops19h 21mUnited Airlines
Deal found 5/30$2,104
Wed 6/2610:15 amSTL - ITM
2 stops39h 50mUnited Airlines
Thu 7/42:00 pmITM - STL
2 stops36h 17mUnited Airlines
Deal found 5/30$2,149
Wed 6/268:25 amSTL - KIX
2 stops40h 20mUnited Airlines
Thu 7/48:25 amKIX - STL
3 stops46h 03mUnited Airlines
Deal found 5/30$2,150
Fri 5/314:05 pmSTL - KIX
2 stops37h 25mAir Canada
Thu 6/66:00 pmKIX - STL
2 stops35h 21mAir Canada
Deal found 5/30$2,186
Sat 6/295:30 pmSTL - KIX
2 stops55h 15mUnited Airlines
Sat 7/64:50 pmKIX - STL
2 stops31h 14mUnited Airlines
Deal found 5/30$2,191

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 2,784,634 searches. Data last updated May 30, 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 9/217:00 amSTL - KIX
1 stop21h 55mJapan Airlines
Sat 9/285:45 pmKIX - STL
1 stop19h 15mJapan Airlines
Deal found 5/29$1,002
Sat 9/217:00 amSTL - KIX
1 stop21h 55mAmerican Airlines
Sat 9/285:45 pmKIX - STL
2 stops28h 36mAmerican Airlines
Deal found 5/29$1,006
Sat 9/147:30 amSTL - ITM
2 stops21h 05mAmerican Airlines
Sat 9/217:25 amITM - STL
2 stops18h 41mAmerican Airlines
Deal found 5/30$1,012
Sat 9/149:37 amSTL - KIX
2 stops22h 33mJapan Airlines
Sat 9/215:45 pmKIX - STL
1 stop19h 15mJapan Airlines
Deal found 5/30$1,012
Sat 9/218:00 amSTL - ITM
2 stops33h 35mJapan Airlines
Sat 9/282:35 pmITM - STL
2 stops22h 25mJapan Airlines
Deal found 5/29$1,016
Sat 9/147:30 amSTL - KIX
2 stops24h 40mJapan Airlines
Sat 9/216:40 amKIX - STL
2 stops30h 20mJapan Airlines
Deal found 5/30$1,021
Sun 9/87:00 amSTL - KIX
1 stop21h 55mAmerican Airlines
Sat 9/215:45 pmKIX - STL
1 stop19h 15mAmerican Airlines
Deal found 5/30$1,047
Sun 9/85:29 amSTL - KIX
2 stops23h 26mAmerican Airlines
Sat 9/215:45 pmKIX - STL
2 stops28h 36mAmerican Airlines
Deal found 5/30$1,049
Sun 9/87:00 amSTL - KIX
1 stop21h 55mAmerican Airlines
Sat 9/215:45 pmKIX - STL
2 stops32h 13mAmerican Airlines
Deal found 5/30$1,050

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 2,784,634 searches. Data last updated May 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,002 - $1,856

Route

Depart

Return

Price

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Sat 9/21

1 stop21h 55m

Osaka Kansai Intl

Sat 9/28

1 stop19h 15m

$1,002

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Sat 9/21

1 stop21h 55m

Osaka Kansai Intl

Sat 9/28

2 stops28h 36m

$1,006

Lambert-St LouisOsaka Itami

STL - ITM

STLITM

Lambert-St Louis

Sat 9/21

2 stops33h 35m

Osaka Itami

Sat 9/28

2 stops22h 25m

$1,016

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

$1,047

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Sun 9/8

2 stops23h 26m

Osaka Kansai Intl

Sat 9/21

2 stops28h 36m

$1,049

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Sun 9/8

1 stop21h 55m

Osaka Kansai Intl

Sat 9/21

2 stops32h 13m

$1,050

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Sun 10/13

2 stops34h 50m

Osaka Kansai Intl

Mon 10/21

2 stops20h 45m

$1,055

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Sat 9/21

2 stops30h 58m

Osaka Kansai Intl

Sat 9/28

3 stops41h 28m

$1,391

Lambert-St LouisOsaka Kansai Intl

STL - KIX

STLKIX

Lambert-St Louis

Sun 10/13

1 stop17h 35m

Osaka Kansai Intl

Mon 10/21

1 stop21h 40m

$1,856

Flights are sorted by cheapest first

Deals found on 5/29

What is the cheapest day 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 30, 2024.
See what other customers who have flown with Japan Airlines, American Airlines and Cathay Pacific 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
1,467 reviews
Check prices

Boarding

8.4

Entertainment

7.8

Food

7.8

Overall

8.3

Crew

8.7

Comfort

8.2

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
1,467 reviews
Japan Airlines
8.3
Very good
1,467 reviews
Check prices

Boarding

8.4

Entertainment

7.8

Food

7.8

Overall

8.3

Crew

8.7

Comfort

8.2

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
1,055 reviews
Japan Airlines
8.3
Very good
1,467 reviews
Check prices

Boarding

8.4

Entertainment

7.8

Food

7.8

Overall

8.3

Crew

8.7

Comfort

8.2

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
10,777 reviews
Japan Airlines
8.3
Very good
1,467 reviews
Check prices

Boarding

8.4

Entertainment

7.8

Food

7.8

Overall

8.3

Crew

8.7

Comfort

8.2

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
14,284 reviews
Japan Airlines
8.3
Very good
1,467 reviews
Check prices

Boarding

8.4

Entertainment

7.8

Food

7.8

Overall

8.3

Crew

8.7

Comfort

8.2

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 Japan Airlines for just $1,002, but on average you can expect to pay $1,677.

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

    According to our current data, Japan Airlines ($1,002), American Airlines ($1,006), and Cathay Pacific ($1,391) offers the cheapest pricing from St. Louis to Osaka. Users have found that Japan Airlines is 37% 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 5/30.

  • What is the cheapest month 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.

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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 2,784,634 searches. Data last updated May 30, 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%
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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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