HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Osaka

$438+ Cheap flights from Missouri to Osaka (OSA)

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 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — OSA
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Missouri to Osaka with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Missouri to Osaka

Keep the following information in mind while searching for Missouri to Osaka flight deals. Data was last updated May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$785
(Justfly.com)

One-way from

$474
(FlightHub)

Popular in

May

Cheapest in

February

Average price

$2,567
Provider with most accurate pricing for Kansas City-Osaka (OSA) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Kansas City-Osaka (OSA) flights.
Search Deals
From Missouri to Osaka (OSA)
Search Deals
One-way flight from Missouri to Osaka (OSA)
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($408 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($78 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2025
Search Deals

Find flight deals from Missouri to Osaka

Cheapest flights from Missouri to Osaka
Explore the most affordable flight options available from Missouri to Osaka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This Justfly.com deal was found by Cheapflights users on 4/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/201:30 pmSTL - KIX
2 stops36h 55mAir Canada
Sun 9/286:05 pmKIX - STL
2 stops34h 14mAir Canada
Deal found 4/30$785
This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/75:37 pmSTL - KIX
2 stops37h 23mDelta
Mon 9/86:20 pmKIX - STL
2 stops40h 29mDelta
Deal found 4/30$888
This FlightHub deal was found by Cheapflights users on 4/30. 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.
Sat 9/208:20 amSTL - ITM
2 stops19h 50mANA
Sun 9/2810:00 amITM - STL
2 stops22h 13mANA
Deal found 4/30$933
This ANA deal was found by Cheapflights users on 4/30. 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.
Sat 9/205:49 pmSTL - KIX
1 stop31h 01mMultiple Airlines
Sun 9/284:50 pmKIX - STL
1 stop37h 52mMultiple Airlines
Deal found 4/30$941
This KAYAK deal was found by Cheapflights users on 4/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/77:23 amSTL - KIX
2 stops40h 52mJapan Airlines
Mon 9/85:55 pmKIX - STL
1 stop19h 04mJapan Airlines
Deal found 4/30$1,015
This Gurufare deal was found by Cheapflights users on 4/30. 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.
Mon 7/77:23 amSTL - ITM
2 stops34h 12mJapan Airlines
Mon 9/82:35 pmITM - STL
2 stops23h 24mJapan Airlines
Deal found 4/30$1,016
This American Airlines deal was found by Cheapflights users on 4/30. 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.
Fri 6/138:05 pmSTL - ITM
2 stops22h 30mAmerican Airlines
Mon 6/237:25 amITM - STL
2 stops19h 26mAmerican Airlines
Deal found 4/30$1,080
This American Airlines deal was found by Cheapflights users on 4/30. 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.
Mon 7/78:50 amSTL - KIX
1 stop19h 55mAmerican Airlines
Mon 9/85:55 pmKIX - STL
1 stop19h 04mAmerican Airlines
Deal found 4/30$1,155
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Mon 5/197:00 amSTL - KIX
1 stop17h 50mUnited Airlines
Tue 6/34:55 pmKIX - STL
2 stops31h 44mUnited Airlines
Deal found 4/30$1,196
This United Airlines deal was found by Cheapflights users on 5/1. 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 7/16:00 amSTL - ITM
2 stops21h 05mUnited Airlines
Thu 8/1412:00 pmITM - STL
2 stops24h 45mUnited Airlines
Deal found 5/1$1,247
This Gurufare deal was found by Cheapflights users on 4/30. 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 10/305:44 amMCI - KIX
2 stops26h 31mJapan Airlines
Sat 11/86:45 amKIX - MCI
2 stops21h 35mJapan Airlines
Deal found 4/30$1,277
This United Airlines deal was found by Cheapflights users on 4/30. 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 10/307:25 amMCI - KIX
1 stop19h 10mUnited Airlines
Sat 11/86:30 pmKIX - MCI
2 stops16h 47mUnited Airlines
Deal found 4/30$1,288

Cheapflights Fare Finder

Customize your flight search to find flights from Missouri 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 2,558,603 searches. Data last updated May 1, 2025.
Use the filters below to find and compare flights from Missouri to Osaka that are best for you.

Fly from

Missouri

Fly to

Osaka

Route

Depart

Return

Price

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Mon 7/7

5:37 pm-9:00 pm

2 stops37h 23m

Osaka Kansai Intl

Mon 9/8

6:20 pm-8:49 pm

2 stops40h 29m

$888

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Mon 7/7

1:30 pm-4:25 pm

2 stops36h 55m

Osaka Kansai Intl

Mon 9/8

6:05 pm-7:57 pm

2 stops39h 52m

$908

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Mon 7/7

7:23 am-2:15 pm

2 stops40h 52m

Osaka Kansai Intl

Mon 9/8

5:55 pm-10:59 pm

1 stop19h 04m

$1,015

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Mon 7/7

7:23 am-7:35 am

2 stops34h 12m

Osaka Itami

Mon 9/8

2:35 pm-11:59 pm

2 stops23h 24m

$1,016

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Fri 6/13

8:05 pm-8:35 am

2 stops22h 30m

Osaka Itami

Mon 6/23

7:25 am-12:51 pm

2 stops19h 26m

$1,080

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Mon 7/7

8:50 am-6:45 pm

1 stop19h 55m

Osaka Kansai Intl

Mon 9/8

5:55 pm-10:59 pm

1 stop19h 04m

$1,155

St. LouisOsaka

STL - KIX

STLKIX

Lambert-St Louis

Mon 5/19

7:00 am-2:50 pm

1 stop17h 50m

Osaka Kansai Intl

Tue 6/3

4:55 pm-10:39 am

2 stops31h 44m

$1,196

St. LouisOsaka

STL - ITM

STLITM

Lambert-St Louis

Tue 7/1

6:00 am-5:05 pm

2 stops21h 05m

Osaka Itami

Thu 8/14

12:00 pm-10:45 pm

2 stops24h 45m

$1,247

Kansas CityOsaka

MCI - ITM

MCIITM

Kansas City

Sun 7/20

7:20 pm-7:35 am

2 stops22h 15m

Osaka Itami

Mon 8/4

7:25 am-4:19 pm

2 stops22h 54m

$1,297

Kansas CityOsaka

MCI - KIX

MCIKIX

Kansas City

Sun 7/20

3:28 pm-2:50 pm

2 stops33h 22m

Osaka Kansai Intl

Mon 8/4

8:25 am-5:24 pm

2 stops46h 59m

$1,354

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 43 results
1
2
3
...
5

Best time to book a flight from Missouri to Osaka

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

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 May 1, 2025.
Read reviews from past customers who have flown Korean Air, Japan Airlines and ANA from Missouri to Osaka. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,069 reviews

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,069 reviews
Korean Air
8.4
Very good
1,069 reviews

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Japan Airlines
8.3
Very good
1,464 reviews
Korean Air
8.4
Very good
1,069 reviews

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
ANA
8.3
Very good
852 reviews
Korean Air
8.4
Very good
1,069 reviews

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Delta
8.0
Very good
7,934 reviews
Korean Air
8.4
Very good
1,069 reviews

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Cathay Pacific
7.5
Good
855 reviews
Korean Air
8.4
Very good
1,069 reviews

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Missouri to Osaka. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Missouri to Osaka one-way?

    For one-way options, check prices for Japan Airlines. According to our data, you can fly for as low as $474. Users have also found prices from $529 and $546 on United Airlines and Air Canada, respectively.

  • What are the most popular routes from Missouri to Osaka?

    The most popular flight routes from Missouri to Osaka are Lambert-St Louis - Osaka Kansai Intl, Lambert-St Louis - Osaka Itami and Kansas City - Osaka Kansai Intl.

  • Can I find deals for flights from Missouri to Osaka that include hotel bookings?

    Yes. In addition to deals on Missouri to Osaka flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missouri to Osaka?

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

  • Can I find deals for business class flights from Missouri to Osaka?

    Yes. Cheapflights offers flight deals from Missouri 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 Missouri to Osaka?

    Currently, February is the cheapest month in which you can book a flight from Missouri to Osaka (average of $893). Flying from Missouri to Osaka in December is currently the most expensive (average of $1,336). 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

Traveling to a place near Missouri?

Book flights to Missouri if you plan to visit one of these locations
Nara
Nishinomiya

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Missouri to Osaka

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Kansai Intl flights
San Francisco to Kansai Intl flights
Los Angeles to Itami flights
Honolulu to Kansai Intl flights
John F Kennedy Intl to Kansai Intl flights
Seattle to Kansai Intl flights
Newark to Kansai Intl flights
John F Kennedy Intl to Itami flights
LaGuardia to Kansai Intl flights
Seattle to Itami flights
San Francisco to Itami flights
Newark to Itami flights
Ontario to Kansai Intl flights
Honolulu to Itami flights
Santa Ana to Kansai Intl flights
Hobby to Kansai Intl flights
Dallas/Fort Worth to Kansai Intl flights
Portland to Kansai Intl flights
LaGuardia to Itami flights
Boston to Kansai Intl flights
San Jose to Kansai Intl flights
O'Hare Intl to Kansai Intl flights
San Diego to Kansai Intl flights
Dulles Intl to Kansai Intl flights
Atlanta to Kansai Intl flights
Boston to Itami flights
Dulles Intl to Itami flights
O'Hare Intl to Itami flights
Baltimore to Kansai Intl flights
Atlanta to Itami flights
Portland to Itami flights
Denver to Kansai Intl flights
George Bush Intcntl to Kansai Intl flights
Baltimore to Itami flights
San Diego to Itami flights
Midway to Kansai Intl flights
Denver to Itami flights
Austin to Kansai Intl flights
Reagan-National to Kansai Intl flights
George Bush Intcntl to Itami flights
Tampa to Kansai Intl flights
Reagan-National to Itami flights
Dallas/Fort Worth to Itami flights
Orlando to Kansai Intl flights
Norfolk to Kansai Intl flights
Miami to Kansai Intl flights
Oakland to Kansai Intl flights

Top airline flying from Missouri to Osaka

Discover the top airline that operate flights from Missouri 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 2,558,603 searches. Data last updated May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest$723Average$1,209FlexibilityNo cancel feeOn-time79%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
Privacy Preferences©2025 Cheapflights