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$481+ Cheap flights from Boston (BOS) 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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — OSA
Jan 21 — Jan 281
Tue 1/21
Tue 1/28
1 adult, Economy
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The best prices from Boston Logan Intl to Osaka are usually found in November or April, booked 78 days in advance, depart on a Monday or Friday and return on a Thursday

Cheap flight deals from Boston to Osaka

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) 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 January 16, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$864
(Mytrip)

One-way from

$481
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$1,438
Provider with most accurate pricing for Boston Logan Intl-Osaka (OSA) flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Osaka (OSA) flights.
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From Boston Logan Intl to Osaka (OSA)
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One-way flight from Boston Logan Intl to Osaka (OSA)
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High demand for flights, 0% potential price rise
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Best time to find cheap flights, 2% potential price drop
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Average for round-trip flights in January 2025
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Find flight deals from Boston to Osaka

Cheapest flights from Boston to Osaka
Explore the most affordable flight options available from Boston to Osaka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 16, 2025.

This Gurufare deal was found by Cheapflights users on 1/16. 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.
Sun 7/206:30 amBOS - KIX
2 stops40h 40mChina Eastern
Sat 7/269:55 amKIX - BOS
2 stops25h 02mChina Eastern
Deal found 1/16$902
This Cheapflightsfares deal was found by Cheapflights users on 1/16. 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.
Sun 2/2310:52 amBOS - KIX
2 stops31h 58mANA
Thu 3/137:10 amKIX - BOS
2 stops30h 40mANA
Deal found 1/16$916
This Justfly.com deal was found by Cheapflights users on 1/14. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/236:00 amBOS - ITM
2 stops24h 20mANA
Thu 3/139:00 amITM - BOS
2 stops25h 42mANA
Deal found 1/14$924
This Booking.com deal was found by Cheapflights users on 1/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/235:35 amBOS - UKB
2 stops26h 10mANA
Thu 3/137:05 amUKB - BOS
2 stops27h 32mANA
Deal found 1/14$927
This United Airlines deal was found by Cheapflights users on 1/16. 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 2/245:45 amBOS - KIX
1 stop20h 50mUnited Airlines
Fri 3/146:30 pmKIX - BOS
1 stop26h 32mUnited Airlines
Deal found 1/16$931
This United Airlines deal was found by Cheapflights users on 1/16. 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 2/26:00 amBOS - KIX
2 stops26h 15mMultiple Airlines
Wed 2/126:30 pmKIX - BOS
2 stops19h 29mMultiple Airlines
Deal found 1/16$940
This oojo deal was found by Cheapflights users on 1/16. 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.
Sat 2/112:30 amBOS - KIX
1 stop30h 35mCathay Pacific
Wed 2/129:25 amKIX - BOS
1 stop26h 35mCathay Pacific
Deal found 1/16$1,048
This United Airlines deal was found by Cheapflights users on 1/15. 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 10/57:30 amBOS - ITM
2 stops20h 35mUnited Airlines
Tue 10/2112:00 pmITM - BOS
2 stops19h 44mUnited Airlines
Deal found 1/15$1,059
This Justfly.com deal was found by Cheapflights users on 1/16. 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.
Wed 4/236:10 amBOS - KIX
2 stops21h 15mAir Canada
Sat 5/36:05 pmKIX - BOS
2 stops28h 30mAir Canada
Deal found 1/16$1,087
This Priceline deal was found by Cheapflights users on 1/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/211:00 amBOS - KIX
1 stop40h 00mKorean Air
Wed 2/122:00 pmKIX - BOS
1 stop32h 40mKorean Air
Deal found 1/16$1,120
This Mytrip deal was found by Cheapflights users on 1/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/237:00 pmBOS - ITM
3 stops46h 40mMultiple Airlines
Thu 3/131:30 pmITM - BOS
2 stops20h 14mMultiple Airlines
Deal found 1/14$1,143
This KAYAK deal was found by Cheapflights users on 1/16. 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.
Fri 2/216:40 pmBOS - KIX
2 stops27h 20mHainan Airlines
Mon 3/1011:10 pmKIX - BOS
2 stops53h 50mHainan Airlines
Deal found 1/16$1,342

Find flights from Boston to Osaka within your budget

Customize your flight search to find flights from Boston 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 January 16, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sun 2/23

7:00 pm-6:50 pm

2 stops33h 50m

Osaka Kansai Intl

Thu 3/13

5:50 pm-2:57 pm

2 stops34h 07m

$864

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sun 2/23

10:52 am-8:50 am

2 stops31h 58m

Osaka Kansai Intl

Thu 3/13

7:10 am-12:50 am

2 stops30h 40m

$916

BostonOsaka

BOS - ITM

BOSITM

Boston Logan Intl

Sun 2/23

6:00 am-8:20 pm

2 stops24h 20m

Osaka Itami

Thu 3/13

9:00 am-9:42 pm

2 stops25h 42m

$924

BostonKobe

BOS - UKB

BOSUKB

Boston Logan Intl

Sun 2/23

5:35 am-9:45 pm

2 stops26h 10m

Kobe

Thu 3/13

7:05 am-9:37 pm

2 stops27h 32m

$927

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Mon 2/24

5:45 am-4:35 pm

1 stop20h 50m

Osaka Kansai Intl

Fri 3/14

6:30 pm-8:02 am

1 stop26h 32m

$931

BostonOsaka

BOS - ITM

BOSITM

Boston Logan Intl

Sat 3/1

7:55 am-6:10 pm

2 stops44h 15m

Osaka Itami

Thu 3/13

1:00 pm-10:00 pm

2 stops22h 00m

$1,073

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sun 2/2

11:00 am-10:45 am

1 stop33h 45m

Osaka Kansai Intl

Wed 2/12

2:00 pm-8:40 am

1 stop32h 40m

$1,078

BostonOsaka

BOS - ITM

BOSITM

Boston Logan Intl

Sun 2/23

7:00 pm-7:40 am

3 stops46h 40m

Osaka Itami

Thu 3/13

1:30 pm-8:44 pm

2 stops20h 14m

$1,143

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sat 2/1

12:30 am-9:05 pm

1 stop30h 35m

Osaka Kansai Intl

Wed 2/12

9:25 am-10:00 pm

1 stop26h 35m

$1,149

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Tue 3/25

6:10 am-7:25 pm

2 stops24h 15m

Osaka Kansai Intl

Thu 4/3

6:05 pm-10:07 am

2 stops29h 02m

$1,256

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

Showing 1-10 of 34 results
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Compare providers for flights from Boston to Osaka

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Osaka in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Osaka flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Boston-Osaka flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Boston-Osaka flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Osaka flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Osaka flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boston to Osaka

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

Travel insights for flights from Boston to Osaka

Get recent, data-driven insights about flights from Boston to Osaka including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Boston to Osaka. Price data was last updated on January 10, 2025.

Booking 78 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boston to Osaka. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, November is the cheapest month in which you can book a flight from Boston to Osaka (average of $950). Flying from Boston to Osaka in December is currently the most expensive (average of $1,366). 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 BOS to OSA?

Find hourly flight availability from Boston 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 January 16, 2025.

When flying from Boston to Osaka, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 25% versus a flight in the morning.

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 January 16, 2025.
Peruse reviews from past customers who have flown with ANA, United Airlines and Air Canada from Boston to Osaka 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.
Korean Air
8.5
Very good
1,034 reviews

Overall

8.5

Boarding

8.5

Entertainment

8.2

Food

8.1

Crew

8.7

Comfort

8.3

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Korean Air
8.5
Very good
1,034 reviews
Korean Air
8.5
Very good
1,034 reviews

Overall

8.5

Boarding

8.5

Entertainment

8.2

Food

8.1

Crew

8.7

Comfort

8.3

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

ANA
8.4
Very good
847 reviews
Korean Air
8.5
Very good
1,034 reviews

Overall

8.5

Boarding

8.5

Entertainment

8.2

Food

8.1

Crew

8.7

Comfort

8.3

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Japan Airlines
8.3
Very good
1,448 reviews
Korean Air
8.5
Very good
1,034 reviews

Overall

8.5

Boarding

8.5

Entertainment

8.2

Food

8.1

Crew

8.7

Comfort

8.3

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Singapore Airlines
8.1
Very good
1,327 reviews
Korean Air
8.5
Very good
1,034 reviews

Overall

8.5

Boarding

8.5

Entertainment

8.2

Food

8.1

Crew

8.7

Comfort

8.3

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Hainan Airlines
7.7
Good
36 reviews
Korean Air
8.5
Very good
1,034 reviews

Overall

8.5

Boarding

8.5

Entertainment

8.2

Food

8.1

Crew

8.7

Comfort

8.3

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Related info for your journey

Find useful and relevant information for your journey from Boston 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 Boston to Osaka?

    Boston Logan Intl (BOS) is the airport you will fly out of if you book a flight from Boston to Osaka. You should not have trouble finding flights to Osaka from Logan Intl; the airport handles an average of 0 outbound flights to Osaka per day. You should also have plenty of airline options to choose from since 6 airlines have flights from the Boston airport to Osaka. It is only a 2.6 mi journey to Logan Intl (BOS) from Boston’s city center.

  • What are the cheapest airlines flying from Boston to Osaka round-trip?

    Currently priced at $916, ANA will fly you from Boston to Osaka and back. In addition to ANA, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Korean Air - these airlines can fly you to your destination from $931 and $1,078, respectively. You may be able to fly from Boston to Osaka for 35% less than the average price by searching for these airlines.

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

    To fly one-way, consider booking your trip with ANA, which is currently one of the cheapest options available, starting at $524. United Airlines flights start at $550 while deals on China Eastern start at $581 one-way.

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

    Most travelers choose Boston Logan Intl - Osaka Kansai Intl, Boston Logan Intl - Osaka Itami or Boston Logan Intl - Kobe when deciding on the best route from Boston to Osaka.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Boston to Osaka (average of $950). Flying from Boston to Osaka in December is currently the most expensive (average of $1,366). 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 Boston to Osaka

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Kansai Intl flights
Boston to Itami flights
Hartford to Itami flights
Hartford to Kansai Intl flights

Top 6 airlines flying from Boston to Osaka

Discover the top 6 airlines that operate flights from Boston 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 January 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$867Average$1,151FlexibilityNo cancel feeOn-time72%
DeltaCheapest$867Average$968FlexibilityNo cancel feeOn-timeN/A
ANACheapest$1,039Average$2,637FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$1,051Average$2,200FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$1,305Average$1,582FlexibilityNo cancel feeOn-time67%
Japan AirlinesCheapest$1,320Average$2,628FlexibilityNo cancel feeOn-time79%
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