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$334+ Cheap flights from Riverside, CA 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 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — OSA
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from Riverside to Osaka are usually found in February or January, booked 20 days in advance, depart on a Tuesday or Friday and return on a Tuesday

Cheap flight deals from Riverside to Osaka

Keep the following information in mind while searching for Riverside to Osaka flight deals. Data was last updated September 15, 2025.

Round-trip from

$593
(Cheapflightsfares)

One-way from

$334
(Jettzy)

Popular in

June

Cheapest in

February

Average price

$732
From Riverside to Osaka (OSA)
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One-way flight from Riverside to Osaka (OSA)
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Highest demand for flights based on searches. 12% potential increase in price ($118 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Riverside to Osaka

Cheapest flights from Riverside to Osaka
Explore the most affordable flight options available from Riverside to Osaka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Asiana Airlines deal was found by Cheapflights users on 9/13. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2211:00 pmLAX - KIX
1 stop26h 50mAsiana Airlines
Thu 10/29:10 amKIX - LAX
1 stop14h 50mAsiana Airlines
Deal found 9/13$642
This eDestinos deal was found by Cheapflights users on 9/14. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/910:50 pmLAX - UKB
1 stop18h 20mKorean Air
Wed 11/2611:10 amUKB - LAX
1 stop14h 20mKorean Air
Deal found 9/14$642
This Asiana Airlines deal was found by Cheapflights users on 9/13. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1910:00 amLAX - KIX
1 stop31h 40mAsiana Airlines
Wed 11/510:50 amKIX - LAX
1 stop22h 10mAsiana Airlines
Deal found 9/13$644
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/296:00 amLAX - KIX
1 stop16h 50mANA
Thu 10/94:50 pmKIX - LAX
1 stop14h 07mANA
Deal found 9/13$646
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Sun 11/99:33 pmLAX - KIX
1 stop26h 07mUnited Airlines
Tue 11/256:35 pmKIX - LAX
1 stop22h 55mUnited Airlines
Deal found 9/14$647
This eDestinos deal was found by Cheapflights users on 9/14. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/21:20 pmLAX - KIX
1 stop33h 40mAir China
Sat 11/151:50 pmKIX - LAX
1 stop37h 10mAir China
Deal found 9/14$648
This Jettzy deal was found by Cheapflights users on 9/13. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2911:50 amLAX - UKB
1 stop30h 20mKorean Air
Wed 11/511:10 amUKB - LAX
1 stop19h 30mKorean Air
Deal found 9/13$649
This FlightHub deal was found by Cheapflights users on 9/13. 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.
Sun 9/288:18 amLAX - KIX
1 stop14h 32mANA
Thu 10/94:50 pmKIX - LAX
1 stop16h 52mANA
Deal found 9/13$650
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/233:00 pmLAX - KIX
Nonstop11h 45mJapan Airlines
Tue 9/307:40 amKIX - LAX
1 stop19h 50mJapan Airlines
Deal found 9/14$651
This CrystalTravel deal was found by Cheapflights users on 9/13. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/301:10 pmLAX - KIX
Nonstop12h 40mJapan Airlines
Fri 12/57:00 amKIX - LAX
1 stop19h 50mJapan Airlines
Deal found 9/13$652
This oojo deal was found by Cheapflights users on 9/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2811:50 amLAX - UKB
1 stop30h 20mKorean Air
Tue 11/46:40 pmUKB - LAX
1 stop36h 00mKorean Air
Deal found 9/13$653
This CrystalTravel deal was found by Cheapflights users on 9/13. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/511:55 pmLAX - KIX
1 stop22h 25mPhilippine Airlines
Mon 10/1310:20 amKIX - LAX
1 stop26h 20mPhilippine Airlines
Deal found 9/13$654

Cheapflights Fare Finder

 
Customize your flight search to find flights from Riverside 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 September 15, 2025.
Use the filters below to find and compare flights from Riverside to Osaka that are best for you.

Fly from

Riverside

Fly to

Osaka

Route

Depart

Return

Price

Los AngelesOsaka

LAX - KIX

LAXKIX

Los Angeles

Tue 11/11

6:00 am-4:40 pm

1 stop17h 40m

Osaka Kansai Intl

Tue 11/25

8:20 am-5:50 pm

1 stop26h 30m

$649

Los AngelesOsaka

LAX - KIX

LAXKIX

Los Angeles

Tue 10/14

8:35 am-10:10 am

2 stops33h 35m

Osaka Kansai Intl

Tue 10/21

4:50 pm-9:20 am

2 stops32h 30m

$661

Los AngelesOsaka

LAX - KIX

LAXKIX

Los Angeles

Tue 11/11

9:30 pm-4:40 pm

1 stop26h 10m

Osaka Kansai Intl

Mon 11/24

6:35 pm-5:43 pm

1 stop16h 08m

$667

Los AngelesOsaka

LAX - KIX

LAXKIX

Los Angeles

Sun 11/9

9:33 pm-4:40 pm

1 stop26h 07m

Osaka Kansai Intl

Mon 11/24

6:35 pm-12:30 am

1 stop22h 55m

$667

Los AngelesOsaka

LAX - ITM

LAXITM

Los Angeles

Tue 12/2

11:45 am-7:55 pm

1 stop15h 10m

Osaka Itami

Wed 12/10

1:40 pm-9:50 am

1 stop13h 10m

$672

Los AngelesOsaka

LAX - KIX

LAXKIX

Los Angeles

Thu 10/30

9:00 am-10:20 am

2 stops33h 20m

Osaka Kansai Intl

Thu 11/6

11:05 am-6:15 am

2 stops36h 10m

$681

Los AngelesOsaka

LAX - KIX

LAXKIX

Los Angeles

Sun 9/28

6:30 am-9:00 pm

2 stops22h 30m

Osaka Kansai Intl

Tue 10/14

12:35 pm-3:35 pm

1 stop19h 00m

$683

Los AngelesOsaka

LAX - KIX

LAXKIX

Los Angeles

Mon 9/29

8:35 am-11:20 am

2 stops34h 45m

Osaka Kansai Intl

Wed 10/15

6:10 pm-9:40 am

1 stop31h 30m

$685

Los AngelesOsaka

LAX - KIX

LAXKIX

Los Angeles

Tue 9/23

3:00 pm-6:45 pm

Nonstop11h 45m

Osaka Kansai Intl

Tue 10/7

5:55 pm-12:05 pm

Nonstop10h 10m

$689

Los AngelesOsaka

LAX - KIX

LAXKIX

Los Angeles

Tue 9/23

3:00 pm-6:45 pm

Nonstop11h 45m

Osaka Kansai Intl

Tue 10/14

5:55 pm-12:05 pm

Nonstop10h 10m

$689

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 59 results
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Best time to book a flight from Riverside to Osaka

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

How far ahead should I book a flight from Riverside to Osaka?

Use this chart to determine the optimal time to book a round-trip flight from Riverside to Osaka. Price data was last updated on September 12, 2025.

The best time to book flights from Riverside to Osaka is 20 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Riverside to Osaka?

Currently, February is the cheapest month in which you can book a flight from Riverside to Osaka (average of $866). Flying from Riverside to Osaka in June is currently the most expensive (average of $1,310). 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 R1V to OSA?

Find hourly flight availability from Riverside to Osaka. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Riverside to Osaka as you normally would.

What is the cheapest day to fly from Riverside to Osaka?

Use this chart to determine the cheapest time to fly round-trip from Riverside to Osaka. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Riverside to Osaka flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Riverside to Osaka

Explore weekly flight availability from Riverside to Osaka. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 15, 2025.

The most flights from R1V to OSA are scheduled on a Monday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

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 September 15, 2025.
Read reviews from past customers who have flown ANA, Japan Airlines, and Asiana Airlines from Riverside to Osaka. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.4
Very good
961 reviews

Entertainment

7.9

Crew

8.7

Overall

8.4

Food

7.7

Comfort

8.2

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

SFO - NRT

ANA ground and flight crew are the best their is They are now officially my Airline of choice Crew are very attentive, friendly, sincere, helpful and respond to queries accurately, promptly and gives you the peace of mind when travelling Salute to the World’s Best Airline for me
ANA
8.4
Very good
961 reviews
ANA
8.4
Very good
961 reviews

Entertainment

7.9

Crew

8.7

Overall

8.4

Food

7.7

Comfort

8.2

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

SFO - NRT

ANA ground and flight crew are the best their is They are now officially my Airline of choice Crew are very attentive, friendly, sincere, helpful and respond to queries accurately, promptly and gives you the peace of mind when travelling Salute to the World’s Best Airline for me
Japan Airlines
8.3
Very good
1,559 reviews
ANA
8.4
Very good
961 reviews

Entertainment

7.9

Crew

8.7

Overall

8.4

Food

7.7

Comfort

8.2

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

SFO - NRT

ANA ground and flight crew are the best their is They are now officially my Airline of choice Crew are very attentive, friendly, sincere, helpful and respond to queries accurately, promptly and gives you the peace of mind when travelling Salute to the World’s Best Airline for me
Asiana Airlines
8.2
Very good
479 reviews
ANA
8.4
Very good
961 reviews

Entertainment

7.9

Crew

8.7

Overall

8.4

Food

7.7

Comfort

8.2

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

SFO - NRT

ANA ground and flight crew are the best their is They are now officially my Airline of choice Crew are very attentive, friendly, sincere, helpful and respond to queries accurately, promptly and gives you the peace of mind when travelling Salute to the World’s Best Airline for me
American Airlines
7.2
Good
10,000 reviews
ANA
8.4
Very good
961 reviews

Entertainment

7.9

Crew

8.7

Overall

8.4

Food

7.7

Comfort

8.2

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

SFO - NRT

ANA ground and flight crew are the best their is They are now officially my Airline of choice Crew are very attentive, friendly, sincere, helpful and respond to queries accurately, promptly and gives you the peace of mind when travelling Salute to the World’s Best Airline for me
Air Canada
7.1
Good
10,000 reviews
ANA
8.4
Very good
961 reviews

Entertainment

7.9

Crew

8.7

Overall

8.4

Food

7.7

Comfort

8.2

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

SFO - NRT

ANA ground and flight crew are the best their is They are now officially my Airline of choice Crew are very attentive, friendly, sincere, helpful and respond to queries accurately, promptly and gives you the peace of mind when travelling Salute to the World’s Best Airline for me

Related info for your journey

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

  • How long is the flight from Riverside to Osaka?

    Airlines like United Airlines, Japan Airlines, and Korean Air fly from Riverside to Osaka in about 15h 10m. The time it takes to get you to your destination can typically vary by up to 10h 40m. Riverside and Osaka are separated by a distance of 5702 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airline one-way is Asiana Airlines, with whom users have recently found tickets for as low as $339. However, be on the lookout for offers from Japan Airlines and American Airlines, as they are both options that can get you from Riverside to Osaka for a low price.

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

    The most popular route from Riverside to Osaka is Los Angeles - Osaka Kansai Intl. You may also consider Los Angeles - Osaka Itami or Los Angeles - Kobe.

  • What are the most reliable airlines from Riverside to Osaka?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Riverside to Osaka on time: American Airlines (84%), Japan Airlines (84%), Alaska Airlines (84%).

  • What are the cheapest flights from Riverside to Osaka?

    Looking at all options, your cheapest flight can be booked for $356. While the most popular route (Los Angeles - Osaka Kansai Intl) can be booked for $577 on average, our data indicates $1,767 when flying from Riverside to Osaka.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Riverside to Osaka (average of $866). Flying from Riverside to Osaka in June is currently the most expensive (average of $1,310). 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 Osaka?

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

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Top 10 airlines flying from Riverside to Osaka

Discover the top 10 airlines that operate flights from Riverside 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$490Average$835FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$503Average$1,114FlexibilityNo cancel feeOn-time70%
Hawaiian AirlinesCheapest$566Average$1,286FlexibilityNo cancel feeOn-time85%
Asiana AirlinesCheapest$590Average$1,012FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$608Average$820FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$611Average$883FlexibilityNo cancel feeOn-time71%
Japan AirlinesCheapest$649Average$957FlexibilityNo cancel feeOn-time79%
China EasternCheapest$665Average$713FlexibilityNo cancel feeOn-time62%
ANACheapest$668Average$865FlexibilityNo cancel feeOn-time80%
Alaska AirlinesCheapest$678Average$988FlexibilityNo cancel feeOn-time75%

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