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Cheap flights from Boston to Osaka from $462

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Osaka departing on 11/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

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Hainan Airlines Logo
6:40 pm - 12:35 pmBOS-KIX
27h 55m2 stops
Hainan Airlines Logo
2:35 pm - 4:20 pmKIX-BOS
39h 45m1 stop
$934Hainan Airlines
Find Deal
Sun, Nov 9 - Thu, Nov 20
Hainan Airlines Logo
6:40 pm - 12:35 pmBOS-KIX
27h 55m2 stops
Hainan Airlines Logo
2:35 pm - 5:20 pmKIX-BOS
39h 45m1 stop
$964Hainan Airlines
Find Deal
Fri, Mar 6 - Sat, Mar 21
Cathay Pacific Logo
12:30 am - 5:50 pmBOS-KIX
27h 20m1 stop
Cathay Pacific Logo
9:25 am - 10:00 pmKIX-BOS
26h 35m1 stop
$1,023Cathay Pacific
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Sun, Nov 9 - Mon, Nov 17
ANA Logo
6:00 am - 4:40 pmBOS-KIX
20h 40m1 stop
ANA Logo
6:35 pm - 9:43 pmKIX-BOS
17h 08m1 stop
$1,033ANA
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Sun, Dec 7 - Wed, Dec 17
Cathay Pacific Logo
12:30 am - 5:50 pmBOS-KIX
27h 20m1 stop
Cathay Pacific Logo
9:25 am - 10:00 pmKIX-BOS
26h 35m1 stop
$1,035Cathay Pacific
Find Deal
Mon, Nov 3 - Thu, Nov 13
ANA Logo
6:00 am - 4:40 pmBOS-KIX
20h 40m1 stop
ANA Logo
6:35 pm - 9:43 pmKIX-BOS
17h 08m1 stop
$1,036ANA
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Sun, Dec 7 - Tue, Dec 16
Air Canada Logo
6:15 am - 8:20 pmBOS-ITM
24h 05m2 stops
Air Canada Logo
3:00 pm - 10:37 pmITM-BOS
21h 37m2 stops
$1,060Air Canada
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Fri, Jan 30 - Sat, Feb 7
Air Canada Logo
6:15 am - 7:25 pmBOS-KIX
23h 10m2 stops
Air Canada Logo
3:45 pm - 10:37 pmKIX-BOS
20h 52m2 stops
$1,063Air Canada
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Fri, Jan 30 - Sat, Feb 7
United Airlines Logo
6:00 am - 4:40 pmBOS-KIX
20h 40m1 stop
United Airlines Logo
6:35 pm - 7:36 amKIX-BOS
27h 01m1 stop
$1,064United Airlines
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Tue, Dec 2 - Thu, Dec 11
United Airlines Logo
6:00 am - 4:40 pmBOS-KIX
20h 40m1 stop
United Airlines Logo
8:20 am - 6:48 pmKIX-BOS
24h 28m2 stops
$1,066United Airlines
Find Deal
Tue, Dec 2 - Fri, Dec 12

Hainan Airlines flights from Boston to Osaka

Our best Hainan Airlines deals on Boston to Osaka flight tickets
Hainan Airlines
Nov 9
BOS6:40 pmBoston Logan Intl
27h 55m
2 stops
KIX12:35 pmOsaka Kansai Intl
Nov 20
KIX2:35 pmOsaka Kansai Intl
39h 45m
1 stop
BOS4:20 pmBoston Logan Intl
$934
Find similar
Hainan Airlines
Mar 6
BOS6:40 pmBoston Logan Intl
27h 55m
2 stops
KIX12:35 pmOsaka Kansai Intl
Mar 21
KIX2:35 pmOsaka Kansai Intl
39h 45m
1 stop
BOS5:20 pmBoston Logan Intl
$964
Find similar
Hainan Airlines
Nov 5
BOS6:40 pmBoston Logan Intl
27h 55m
2 stops
KIX12:35 pmOsaka Kansai Intl
Nov 20
KIX2:35 pmOsaka Kansai Intl
39h 45m
1 stop
BOS4:20 pmBoston Logan Intl
$1,001
Find similar

Cathay Pacific flights from Boston to Osaka

Our best Cathay Pacific deals on Boston to Osaka flight tickets
Cathay Pacific
Nov 9
BOS12:30 amBoston Logan Intl
27h 20m
1 stop
KIX5:50 pmOsaka Kansai Intl
Nov 17
KIX9:25 amOsaka Kansai Intl
26h 35m
1 stop
BOS10:00 pmBoston Logan Intl
$1,023
Find similar
Cathay Pacific
Nov 3
BOS12:30 amBoston Logan Intl
27h 20m
1 stop
KIX5:50 pmOsaka Kansai Intl
Nov 13
KIX9:25 amOsaka Kansai Intl
26h 35m
1 stop
BOS10:00 pmBoston Logan Intl
$1,035
Find similar
Cathay Pacific
Nov 9
BOS12:30 amBoston Logan Intl
24h 25m
2 stops
KIX2:55 pmOsaka Kansai Intl
Nov 17
KIX9:25 amOsaka Kansai Intl
26h 35m
1 stop
BOS10:00 pmBoston Logan Intl
$1,039
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated October 14, 2025.
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

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sun 11/9

6:40 pm-12:35 pm

2 stops27h 55m

Osaka Kansai Intl

Thu 11/20

2:35 pm-4:20 pm

1 stop39h 45m

$934

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Fri 3/6

6:40 pm-12:35 pm

2 stops27h 55m

Osaka Kansai Intl

Sat 3/21

2:35 pm-5:20 pm

1 stop39h 45m

$964

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sun 11/9

12:30 am-5:50 pm

1 stop27h 20m

Osaka Kansai Intl

Mon 11/17

9:25 am-10:00 pm

1 stop26h 35m

$1,023

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sun 12/7

6:00 am-4:40 pm

1 stop20h 40m

Osaka Kansai Intl

Wed 12/17

6:35 pm-9:43 pm

1 stop17h 08m

$1,033

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Mon 11/3

12:30 am-5:50 pm

1 stop27h 20m

Osaka Kansai Intl

Thu 11/13

9:25 am-10:00 pm

1 stop26h 35m

$1,035

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sun 12/7

6:00 am-4:40 pm

1 stop20h 40m

Osaka Kansai Intl

Tue 12/16

6:35 pm-9:43 pm

1 stop17h 08m

$1,036

BostonOsaka

BOS - ITM

BOSITM

Boston Logan Intl

Fri 1/30

6:15 am-8:20 pm

2 stops24h 05m

Osaka Itami

Sat 2/7

3:00 pm-10:37 pm

2 stops21h 37m

$1,060

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Fri 1/30

6:15 am-7:25 pm

2 stops23h 10m

Osaka Kansai Intl

Sat 2/7

3:45 pm-10:37 pm

2 stops20h 52m

$1,063

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Tue 12/2

6:00 am-4:40 pm

1 stop20h 40m

Osaka Kansai Intl

Thu 12/11

6:35 pm-7:36 am

1 stop27h 01m

$1,064

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Tue 12/2

6:00 am-4:40 pm

1 stop20h 40m

Osaka Kansai Intl

Fri 12/12

8:20 am-6:48 pm

2 stops24h 28m

$1,066

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Osaka from

How to get the cheapest flight ticket from Boston 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

What is the cheapest month to fly to Osaka?

In general, September is the cheapest month to fly from Boston to Osaka. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $927. If you are unable to visit Osaka during the month of September, then departing from Boston during the month November is also very affordable. Most momondo users find prices during this month for around $1,032.

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 Boston. The lowest ticket price found for a Monday departure recently was $1,438. 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 Thursday, the most expensive travel day of the week, you can expect to see flight prices from Boston to Osaka for around $1,580.

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

Our data shows that the cheapest Boston to Osaka flights are usually those with departure times in the evening. Our users have found flights to Osaka in the evening for as low as $1,187. Flights to Osaka are more costly in the morning, with an average ticket price of $1,582. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on Boston to Osaka flights?

You could potentially save up to 8% on your flight if you consider stops on a Boston to Osaka flight.

When to book flights from Boston to Osaka

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Osaka according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Osaka (BOS to OSA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Osaka

Direct flights

None
There are no direct flights from Boston to Osaka. There are no popular flight routes from Boston to Osaka.
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  • How far is Boston Logan Intl to Osaka by plane?

    A flight from Boston Logan Intl to Osaka will travel around 6850.9 mi. A reasonable flight in good conditions will take 17h 40m.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Osaka?

    Prices for flights from Boston Logan Intl Airport to Osaka are updated daily.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Osaka?

  • How old do you have to be to fly from Boston Logan Intl Airport to Osaka?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Boston Logan Intl Airport to Osaka.

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

    The required travel and health documents for your Osaka trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Osaka. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Boston to Osaka?

Best airlines flying from Boston to Osaka

Compare and see reviews for airlines that fly from Boston to Osaka with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $787Free CancellationRating
7.1
10,294 reviews
Search Air Canada flights
Cathay PacificPriceFrom $940Free CancellationRating
7.6
1,023 reviews
Search Cathay Pacific flights
ANAPriceFrom $979Free CancellationRating
8.4
984 reviews
Search ANA flights
United AirlinesPriceFrom $1,056Free CancellationRating
7.4
8,975 reviews
Search United Airlines flights
Japan AirlinesPriceFrom $1,493Free CancellationRating
8.3
1,578 reviews
Search Japan Airlines flights

Traveling to a place near Osaka?

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

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Osaka?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Osaka from Boston.

Can I find flights from Boston to Osaka with flexible booking policies on momondo?

momondo does allow users to show only those flights to Osaka from Boston which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Boston to Osaka?

momondo provides multiple filters to help you find the best flight to Osaka from Boston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Osaka from Boston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Osaka trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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Find better results for your trip to Japan

Fly into one of these airports located in Osaka

Airports listed have a maximum distance of 22.5 mi from Osaka
Osaka Itami Airport
Osaka Kansai Intl Airport