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$336+ Cheap flights from St. Louis (STL) to Asia

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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BKK
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from St. Louis to Asia

Keep the following information in mind while searching for St. Louis to Asia flight deals. Data was last updated September 11, 2025.

Round-trip from

$649
(Expedia)

One-way from

$336
(SmartFares)

Popular in

June

Cheapest in

November

Average price

$1,211

Good round-trip deal

$1,472 or less
From Lambert-St Louis to Asia
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One-way flight from Lambert-St Louis to Asia
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Highest demand for flights based on searches. 15% potential increase in price ($260 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($47 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Lambert-St Louis to Asia.
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Find flight deals from St. Louis to Asia

Cheapest flights from St. Louis to Asia
Explore the most affordable flight options available from St. Louis to Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 9/9. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/136:00 amSTL - NRT
1 stop20h 00mHawaiian Airlines
Mon 9/156:25 pmNRT - STL
1 stop19h 34mHawaiian Airlines
Deal found 9/9$643
This FlightHub deal was found by Cheapflights users on 9/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:30 amSTL - NRT
2 stops43h 00mAir Canada
Tue 2/106:45 pmNRT - STL
2 stops43h 13mAir Canada
Deal found 9/10$652
This Air Canada deal was found by Cheapflights users on 9/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:42 pmSTL - NRT
2 stops30h 48mAir Canada
Sat 12/136:45 pmNRT - STL
2 stops31h 01mAir Canada
Deal found 9/11$655
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/136:00 amSTL - NRT
1 stop20h 00mAlaska Airlines
Mon 9/156:25 pmNRT - STL
1 stop19h 34mAlaska Airlines
Deal found 9/10$657
This FlightHub deal was found by Cheapflights users on 9/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/96:30 amSTL - HND
1 stop20h 15mANA
Tue 12/1610:25 amHND - STL
1 stop16h 50mANA
Deal found 9/9$659
This Air Canada deal was found by Cheapflights users on 9/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1610:00 amSTL - NRT
2 stops39h 20mAir Canada
Wed 12/106:15 pmNRT - STL
2 stops36h 14mAir Canada
Deal found 9/9$660
This Air Canada deal was found by Cheapflights users on 9/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/14:05 pmSTL - HND
1 stop33h 35mAir Canada
Tue 2/106:50 pmHND - STL
1 stop35h 39mAir Canada
Deal found 9/10$661
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/187:16 amSTL - NRT
1 stop17h 44mAmerican Airlines
Wed 10/86:30 pmNRT - STL
1 stop18h 48mAmerican Airlines
Deal found 9/11$661
This Air Canada deal was found by Cheapflights users on 9/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/64:05 pmSTL - HND
1 stop33h 35mAir Canada
Sat 12/136:50 pmHND - STL
1 stop35h 39mAir Canada
Deal found 9/10$662
This Air Canada deal was found by Cheapflights users on 9/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/54:05 pmSTL - NRT
1 stop33h 25mAir Canada
Fri 12/196:45 pmNRT - STL
1 stop35h 44mAir Canada
Deal found 9/10$663
This American Airlines deal was found by Cheapflights users on 9/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/97:00 amSTL - NRT
1 stop17h 30mAmerican Airlines
Tue 12/165:30 pmNRT - STL
1 stop20h 17mAmerican Airlines
Deal found 9/9$667
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Tue 12/98:30 amSTL - HND
1 stop17h 20mUnited Airlines
Tue 12/164:25 pmHND - STL
2 stops19h 32mUnited Airlines
Deal found 9/9$670

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Asia 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 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from St. Louis to Asia that are best for you.

Fly from

St. Louis

Fly to

Asia

Route

Depart

Return

Price

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Sat 12/6

6:42 pm-4:30 pm

2 stops30h 48m

Tokyo Narita

Sat 12/13

6:45 pm-10:46 am

2 stops31h 01m

$655

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Thu 1/15

4:05 pm-4:20 pm

2 stops33h 15m

Tokyo Narita

Fri 1/30

6:15 pm-3:29 pm

2 stops36h 14m

$663

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Sun 11/16

4:05 pm-4:30 pm

1 stop33h 25m

Tokyo Narita

Wed 12/10

6:15 pm-3:29 pm

2 stops36h 14m

$663

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sun 2/8

6:30 am-5:45 pm

1 stop20h 15m

Tokyo Haneda

Fri 2/27

10:25 am-2:18 pm

1 stop18h 53m

$666

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Mon 2/9

6:00 am-3:30 pm

1 stop18h 30m

Tokyo Narita

Fri 2/27

5:15 pm-9:10 pm

1 stop18h 55m

$667

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Mon 2/9

6:00 pm-4:50 am

2 stops19h 50m

Tokyo Haneda

Thu 2/26

6:20 pm-7:25 pm

1 stop16h 05m

$670

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Mon 2/9

9:57 am-5:45 pm

1 stop16h 48m

Tokyo Haneda

Thu 2/26

12:50 am-12:20 pm

2 stops26h 30m

$670

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Tue 2/10

8:25 am-4:50 pm

1 stop17h 25m

Tokyo Haneda

Mon 2/23

12:50 am-9:42 am

2 stops23h 52m

$670

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Wed 2/11

8:25 am-4:50 pm

1 stop17h 25m

Tokyo Haneda

Thu 2/26

4:25 pm-10:06 pm

2 stops20h 41m

$670

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Mon 2/9

6:59 pm-3:05 pm

2 stops29h 06m

Tokyo Haneda

Fri 2/27

4:25 pm-8:39 pm

2 stops19h 14m

$672

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 60 results
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Best time to book a flight from St. Louis to Asia

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

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Asia

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

Currently, September is the cheapest month in which you can book a flight from St. Louis to Asia (average of $908). Flying from St. Louis to Asia in December is currently the most expensive (average of $1,518). 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.

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

Find hourly flight availability from St. Louis to Asia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

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

Reviews of airlines servicing Asia

Get insights into the airlines that provide service to Asia. 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 Asia. Reviews last updated September 11, 2025.
Peruse reviews from past customers who have flown with Delta, Qatar Airways, and United Airlines from St. Louis to Asia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Qatar Airways
7.4
Good
3,624 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Lufthansa
6.8
Okay
7,409 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Asia. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

  • How long is the flight from St. Louis to Asia?

    Departing from St. Louis to Asia will take you 20h 10m. There are 6670 mi between St. Louis and Asia. This flight may include one or multiple stops.

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

    The cheapest airlines for a one-way flight from St. Louis to Asia are Alaska Airlines ($336), Air Canada ($339), and United Airlines ($448).

  • What are the most popular routes from St. Louis to Asia?

    Most travelers choose Lambert-St Louis - Tokyo Narita, Lambert-St Louis - Tokyo Haneda or Lambert-St Louis - Ho Chi Minh City when deciding on the best route from St. Louis to Asia.

  • Can I find deals for flights from St. Louis to Asia that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Asia 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 Asia?

    Currently, September is the cheapest month in which you can book a flight from St. Louis to Asia (average of $908). Flying from St. Louis to Asia in December is currently the most expensive (average of $1,518). 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 Asia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from St. Louis to Asia

Discover the top 10 airlines that operate flights from St. Louis to Asia. 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 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$593Average$1,246FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$629Average$1,141FlexibilityNo cancel feeOn-time67%
Japan AirlinesCheapest$691Average$1,106FlexibilityNo cancel feeOn-time79%
ANACheapest$703Average$1,227FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$716Average$1,302FlexibilityNo cancel feeOn-time69%
DeltaCheapest$723Average$1,345FlexibilityNo cancel feeOn-timeN/A
Qatar AirwaysCheapest$897Average$1,290FlexibilityNo cancel feeOn-time68%
Cathay PacificCheapest$957Average$1,441FlexibilityNo cancel feeOn-time72%
LufthansaCheapest$1,034Average$1,301FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$1,057Average$1,628FlexibilityNo cancel feeOn-time81%

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