What is the cheapest airline that flies from Lambert-St Louis to Osaka?

American Airlines, Delta, and Japan Airlines are the most popular carriers operating from Lambert-St Louis to Osaka

When did momondo last update prices for flights from Lambert-St Louis Airport to Osaka?

Prices for flights from Lambert-St Louis Airport to Osaka are refreshed on a daily basis.

How old do you have to be to fly from Lambert-St Louis Airport to Osaka?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Osaka.

What documentation or ID do you need to fly to Osaka?

The travel and health documents you'll need for your trip to Osaka may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Osaka. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$354 Cheap Flights from St. Louis to Osaka in 2025/26

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Find the cheapest flights from St. Louis to Osaka

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:05 pm - 7:10 pm

STL

ITM

36h 05m2 stops

4:00 pm - 3:29 pm

ITM

STL

37h 29m2 stops

$687Air Canada

Wed, Feb 18 - Wed, Mar 11

6:30 am - 9:10 am

STL

ITM

35h 40m2 stops

7:30 am - 3:38 pm

ITM

STL

23h 08m2 stops

$737ANA

Tue, Feb 3 - Thu, Feb 19

7:04 am - 7:20 pm

STL

ITM

21h 16m2 stops

3:25 pm - 7:25 pm

ITM

STL

19h 00m2 stops

$748American Airlines

Tue, Feb 3 - Thu, Feb 19

6:00 am - 8:45 pm

STL

KIX

23h 45m2 stops

9:00 am - 11:23 pm

KIX

STL

29h 23m2 stops

$756Delta

Tue, Feb 3 - Thu, Feb 12

6:10 am - 8:45 pm

STL

KIX

23h 35m2 stops

2:00 pm - 11:25 pm

KIX

STL

24h 25m2 stops

$763Delta

Tue, Feb 3 - Tue, Feb 10

4:42 pm - 4:40 pm

STL

KIX

32h 58m2 stops

6:35 pm - 8:58 pm

KIX

STL

17h 23m2 stops

$793United Airlines

Sat, Jan 17 - Wed, Jan 21

4:42 pm - 4:40 pm

STL

KIX

32h 58m2 stops

6:35 pm - 3:42 pm

KIX

STL

36h 07m1 stop

$801United Airlines

Sat, Jan 17 - Wed, Jan 21

7:00 am - 7:55 pm

STL

ITM

21h 55m2 stops

8:30 am - 10:59 am

ITM

STL

17h 29m2 stops

$822American Airlines

Sun, Feb 15 - Sat, Feb 28

7:04 am - 6:50 pm

STL

KIX

20h 46m1 stop

5:50 pm - 11:48 pm

KIX

STL

20h 58m1 stop

$824Japan Airlines

Mon, Feb 2 - Thu, Feb 19

7:04 am - 10:20 pm

STL

KIX

24h 16m2 stops

5:50 pm - 11:48 pm

KIX

STL

20h 58m1 stop

$828Japan Airlines

Mon, Feb 2 - Wed, Feb 18

Delta flights from St. Louis to Osaka

Our best Delta deals on St. Louis to Osaka flight tickets

Delta

Feb 3

STL6:00 amLambert-St Louis

23h 45m

2 stops

KIX8:45 pmOsaka Kansai Intl

Feb 12

KIX9:00 amOsaka Kansai Intl

29h 23m

2 stops

STL11:23 pmLambert-St Louis

$756

Find similar

Delta

Feb 3

STL6:10 amLambert-St Louis

23h 35m

2 stops

KIX8:45 pmOsaka Kansai Intl

Feb 10

KIX2:00 pmOsaka Kansai Intl

24h 25m

2 stops

STL11:25 pmLambert-St Louis

$763

Find similar

United Airlines flights from St. Louis to Osaka

Our best United Airlines deals on St. Louis to Osaka flight tickets

United Airlines

Jan 17

STL4:42 pmLambert-St Louis

32h 58m

2 stops

KIX4:40 pmOsaka Kansai Intl

Jan 21

KIX6:35 pmOsaka Kansai Intl

17h 23m

2 stops

STL8:58 pmLambert-St Louis

$793

Find similar

United Airlines

Jan 17

STL4:42 pmLambert-St Louis

32h 58m

2 stops

KIX4:40 pmOsaka Kansai Intl

Jan 21

KIX6:35 pmOsaka Kansai Intl

36h 07m

1 stop

STL3:42 pmLambert-St Louis

$801

Find similar

United Airlines

Jan 17

STL5:00 pmLambert-St Louis

32h 40m

1 stop

KIX4:40 pmOsaka Kansai Intl

Jan 21

KIX6:35 pmOsaka Kansai Intl

36h 07m

1 stop

STL3:42 pmLambert-St Louis

$805

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Wed 2/18

4:05 pm-7:10 pm

2 stops36h 05m

Osaka Itami

Wed 3/11

4:00 pm-3:29 pm

2 stops37h 29m

$687

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Tue 2/3

6:30 am-9:10 am

2 stops35h 40m

Osaka Itami

Thu 2/19

7:30 am-3:38 pm

2 stops23h 08m

$737

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Tue 2/3

7:04 am-7:20 pm

2 stops21h 16m

Osaka Itami

Thu 2/19

3:25 pm-7:25 pm

2 stops19h 00m

$748

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Tue 2/3

6:00 am-8:45 pm

2 stops23h 45m

Osaka Kansai Intl

Thu 2/12

9:00 am-11:23 pm

2 stops29h 23m

$756

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Tue 2/3

6:10 am-8:45 pm

2 stops23h 35m

Osaka Kansai Intl

Tue 2/10

2:00 pm-11:25 pm

2 stops24h 25m

$763

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Sat 1/17

4:42 pm-4:40 pm

2 stops32h 58m

Osaka Kansai Intl

Wed 1/21

6:35 pm-8:58 pm

2 stops17h 23m

$793

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Sat 1/17

4:42 pm-4:40 pm

2 stops32h 58m

Osaka Kansai Intl

Wed 1/21

6:35 pm-3:42 pm

1 stop36h 07m

$801

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Sun 2/15

7:00 am-7:55 pm

2 stops21h 55m

Osaka Itami

Sat 2/28

8:30 am-10:59 am

2 stops17h 29m

$822

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Mon 2/2

7:04 am-6:50 pm

1 stop20h 46m

Osaka Kansai Intl

Thu 2/19

5:50 pm-11:48 pm

1 stop20h 58m

$824

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Mon 2/2

7:04 am-10:20 pm

2 stops24h 16m

Osaka Kansai Intl

Wed 2/18

5:50 pm-11:48 pm

1 stop20h 58m

$828

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from St. Louis to Osaka

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Osaka?

According to our data, Monday is the cheapest day to fly to Osaka from St. Louis. The lowest ticket price found for a Monday departure recently was $1,098. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to Osaka for around $1,835.

Can stopping save me money on St. Louis to Osaka flights?

You could potentially save up to 6% on your flight if you consider stops on a St. Louis to Osaka flight.

When to book flights from St. Louis to Osaka

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Osaka according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap St. Louis to Osaka (STL to OSA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Osaka

Fastest flight time	18h 55m
Direct flights	None

The fastest flight from St. Louis to Osaka takes 18h 55m

There are no direct flights from St. Louis to Osaka. There are no popular flight routes from St. Louis to Osaka.

Search flight deals

How far is Lambert-St Louis to Osaka by plane?
The straight-line distance from Lambert-St Louis to Osaka is 6585.1 mi. 18h 55m is a normal flight duration for this route.
When did momondo last update prices for flights from Lambert-St Louis Airport to Osaka?
Prices for flights from Lambert-St Louis Airport to Osaka are refreshed on a daily basis.
How old do you have to be to fly from Lambert-St Louis Airport to Osaka?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Osaka.
What documentation or ID do you need to fly to Osaka?
The travel and health documents you'll need for your trip to Osaka may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Osaka. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from St. Louis to Osaka?
momondo data reveals that the most frequently booked airline on the route from St. Louis to Osaka is Japan Airlines, representing 47% of all bookings. The subsequent popular airlines are ANA at 27% and United Airlines at 27%.

Nara

Nishinomiya

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Osaka?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Osaka. momondo saves you time and could save you money on your trip.

Can I find flights from St. Louis to Osaka with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Osaka from St. Louis with this policy.

How can momondo help me find flights from St. Louis to Osaka?

momondo helps you find the best flight between St. Louis and Osaka by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from St. Louis to Osaka right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Osaka, momondo offers a useful price alert feature which will track prices for flights to Osaka from St. Louis and alert you when they change.