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Osaka

$475+ 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — OSA
Jun 16 — Jun 231
Tue 6/16
Tue 6/23
1 adult, Economy
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Cheap 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 May 17, 2026.

This SmartFares deal was found by Cheapflights users on 5/16. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:40 pm
BOS
-
KIX
2 stops27h 55m
Hainan Airlines
Sat 11/282:35 pm
KIX
-
BOS
1 stop39h 45m
Hainan Airlines
Deal found 5/16$912
This FlightHub deal was found by Cheapflights users on 5/12. 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.
Wed 9/26:40 pm
BOS
-
KIX
2 stops29h 05m
Hainan Airlines
Sat 9/192:20 pm
KIX
-
BOS
1 stop39h 20m
Hainan Airlines
Deal found 5/12$958
This KAYAK deal was found by Cheapflights users on 5/12. 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.
Wed 10/216:40 pm
BOS
-
KIX
2 stops29h 05m
Hainan Airlines
Sat 11/72:35 pm
KIX
-
BOS
1 stop39h 45m
Hainan Airlines
Deal found 5/12$968
This KAYAK deal was found by Cheapflights users on 5/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:40 pm
BOS
-
KIX
2 stops27h 55m
Hainan Airlines
Sat 11/282:35 pm
KIX
-
BOS
1 stop39h 45m
Hainan Airlines
Deal found 5/15$979
This SmartFares deal was found by Cheapflights users on 5/14. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:40 pm
BOS
-
KIX
2 stops29h 05m
Hainan Airlines
Sat 10/102:20 pm
KIX
-
BOS
1 stop39h 20m
Hainan Airlines
Deal found 5/14$1,042
This Trip.com deal was found by Cheapflights users on 5/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:40 pm
BOS
-
KIX
3 stops35h 55m
Multiple Airlines
Thu 11/127:35 am
KIX
-
BOS
2 stops46h 45m
Multiple Airlines
Deal found 5/16$1,078
This Cathay Pacific deal was found by Cheapflights users on 5/16. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/151:45 am
BOS
-
KIX
1 stop24h 25m
Cathay Pacific
Wed 9/239:05 am
KIX
-
BOS
1 stop27h 00m
Cathay Pacific
Deal found 5/16$1,189
This Justfly.com deal was found by Cheapflights users on 5/16. 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.
Fri 9/46:30 am
BOS
-
KIX
2 stops40h 40m
China Eastern
Sun 9/132:20 pm
KIX
-
BOS
2 stops46h 38m
China Eastern
Deal found 5/16$1,212
This United Airlines deal was found by Cheapflights users on 5/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:00 am
BOS
-
ITM
2 stops22h 05m
United Airlines
Wed 9/212:50 pm
ITM
-
BOS
2 stops24h 44m
United Airlines
Deal found 5/13$1,386
This FlightHub deal was found by Cheapflights users on 5/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:59 pm
BOS
-
UKB
2 stops25h 01m
Multiple Airlines
Wed 9/2311:00 am
UKB
-
BOS
2 stops31h 04m
Multiple Airlines
Deal found 5/16$1,387
This FlightHub deal was found by Cheapflights users on 5/13. 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.
Mon 10/126:59 pm
BOS
-
UKB
2 stops26h 01m
Multiple Airlines
Wed 10/217:00 pm
UKB
-
BOS
2 stops26h 19m
Multiple Airlines
Deal found 5/13$1,430
This FlightHub deal was found by Cheapflights users on 5/13. 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.
Fri 9/47:59 pm
BOS
-
UKB
2 stops25h 31m
Multiple Airlines
Sun 9/1311:40 am
UKB
-
BOS
2 stops32h 59m
Multiple Airlines
Deal found 5/13$1,441

Find 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 May 17, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$958
(FlightHub)

One-way from

$475
(SmartFares)

Popular in

December

Cheapest in

February

Average price

$1,508
Provider with most accurate pricing for Boston Logan Intl-Osaka (OSA) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Osaka (OSA) flights.
Search Deals
From Boston Logan Intl to Osaka (OSA)
Search Deals
One-way flight from Boston Logan Intl to Osaka (OSA)
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($77 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
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 May 17, 2026.
Use the filters below to find and compare flights from Boston to Osaka that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Thu 9/3

1:45 am-9:15 pm

1 stop30h 30m

Osaka Kansai Intl

Sun 9/13

6:30 pm-11:05 pm

1 stop41h 35m

$1,239

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Thu 9/10

1:45 am-6:40 am

1 stop39h 55m

Osaka Kansai Intl

Sat 9/26

4:15 pm-11:05 pm

2 stops43h 50m

$1,305

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Mon 9/28

1:45 am-2:50 pm

2 stops24h 05m

Osaka Kansai Intl

Wed 11/11

4:15 pm-10:00 pm

2 stops43h 45m

$1,360

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sat 10/10

1:45 am-2:50 pm

2 stops24h 05m

Osaka Kansai Intl

Sun 10/18

4:15 pm-11:05 pm

2 stops43h 50m

$1,365

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sat 9/19

1:45 am-6:40 am

1 stop39h 55m

Osaka Kansai Intl

Sat 10/3

4:15 pm-11:05 pm

2 stops43h 50m

$1,369

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Thu 10/22

1:45 am-2:50 pm

2 stops24h 05m

Osaka Kansai Intl

Mon 11/9

4:15 pm-10:00 pm

2 stops43h 45m

$1,441
Quickest round-trip

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Thu 8/13

6:00 am-2:50 pm

1 stop19h 50m

Osaka Kansai Intl

Tue 9/1

4:55 pm-11:59 pm

2 stops20h 04m

$1,480

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sun 8/2

4:25 pm-6:05 pm

2 stops36h 40m

Osaka Kansai Intl

Sun 8/16

6:40 pm-2:40 pm

1 stop33h 00m

$1,712

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Fri 8/14

4:25 pm-11:50 am

1 stop30h 25m

Osaka Kansai Intl

Sat 8/22

9:45 am-2:40 pm

2 stops41h 55m

$1,724

BostonKobe

BOS - UKB

BOSUKB

Boston Logan Intl

Mon 8/3

12:55 pm-10:55 am

1 stop33h 00m

Kobe

Tue 10/27

6:40 pm-9:40 am

1 stop28h 00m

$1,929

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/17

Showing 1-10 of 46 resultsSorted by cheapest first
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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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
JustAirTicketPrice Accuracy-Trust Score*1 star
GotogatePrice 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 Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Boston-Osaka flight deals on Cheapflights vs. Ovago >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 Ovago the most. Ovago 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.

Cheapflights Insights

Everything you need to know about your flight from Boston to Osaka

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

Booking 22 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, July is the cheapest month in which you can book a flight from Boston to Osaka (average of $429). Flying from Boston to Osaka in August is currently the most expensive (average of $1,091). 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.

How much does it cost to fly round-trip from Boston to Osaka?

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 17, 2026.
Peruse reviews from past customers who have flown with Japan Airlines,ANA, andCathay Pacific 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.
Japan Airlines
8.3
Very good
1,822 reviews

Overall

8.3

Comfort

8.2

Boarding

8.4

Food

7.7

Crew

8.7

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

BKK - NRT

Everything was was a great experience, the staff was very friendly and always had a smile on the face.
Japan Airlines
8.3
Very good
1,822 reviews
Japan Airlines
8.3
Very good
1,822 reviews

Overall

8.3

Comfort

8.2

Boarding

8.4

Food

7.7

Crew

8.7

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

BKK - NRT

Everything was was a great experience, the staff was very friendly and always had a smile on the face.
ANA
8.3
Very good
1,210 reviews
Japan Airlines
8.3
Very good
1,822 reviews

Overall

8.3

Comfort

8.2

Boarding

8.4

Food

7.7

Crew

8.7

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

BKK - NRT

Everything was was a great experience, the staff was very friendly and always had a smile on the face.
Cathay Pacific
7.6
Good
1,332 reviews
Japan Airlines
8.3
Very good
1,822 reviews

Overall

8.3

Comfort

8.2

Boarding

8.4

Food

7.7

Crew

8.7

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

BKK - NRT

Everything was was a great experience, the staff was very friendly and always had a smile on the face.
United Airlines
7.4
Good
9,731 reviews
Japan Airlines
8.3
Very good
1,822 reviews

Overall

8.3

Comfort

8.2

Boarding

8.4

Food

7.7

Crew

8.7

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

BKK - NRT

Everything was was a great experience, the staff was very friendly and always had a smile on the face.
Air Canada
7.1
Good
11,056 reviews
Japan Airlines
8.3
Very good
1,822 reviews

Overall

8.3

Comfort

8.2

Boarding

8.4

Food

7.7

Crew

8.7

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

BKK - NRT

Everything was was a great experience, the staff was very friendly and always had a smile on the face.

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 5 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.

  • How long is the flight from Boston to Osaka?

    A quick flight from Boston to Osaka can take about 24h. Cathay Pacific provides one of the quickest options available for as low as $2,119. There are 6845 mi between Boston and Osaka. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Currently priced at $787, Air Canada will fly you from Boston to Osaka and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from ANA and Cathay Pacific - these airlines can fly you to your destination from $796 and $833, respectively. You may be able to fly from Boston to Osaka for 39% less than the average price by searching for these airlines.

  • 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, July is the cheapest month in which you can book a flight from Boston to Osaka (average of $429). Flying from Boston to Osaka in August is currently the most expensive (average of $1,091). 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

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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

Top 5 airlines flying from Boston to Osaka

Discover the top 5 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 May 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$787Average$1,115FlexibilityNo cancel feeOn-time67%
ANACheapest$796Average$1,335FlexibilityNo cancel feeOn-time80%
Cathay PacificCheapest$833Average$1,304FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$979Average$1,519FlexibilityNo cancel feeOn-time69%
Japan AirlinesCheapest$1,493Average$2,679FlexibilityNo cancel feeOn-time79%

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