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Cheap flights from Boston to Osaka from $405

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 2/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Boston to Osaka

Cheap round-trip flights

Enter your travel dates to find the best prices.
Hainan Airlines Logo
6:40 pm - 12:35 pm
BOS
-
KIX
27h 55m2 stops
Hainan Airlines Logo
2:35 pm - 4:20 pm
KIX
-
BOS
39h 45m1 stop
$796Hainan Airlines
Fri, Jan 30 - Sat, Feb 7
Hainan Airlines Logo
6:40 pm - 12:35 pm
BOS
-
KIX
27h 55m2 stops
Hainan Airlines Logo
2:35 pm - 4:20 pm
KIX
-
BOS
39h 45m1 stop
$798Hainan Airlines
Sun, Jan 18 - Tue, Jan 27
Korean Air Logo
6:00 am - 5:40 pm
BOS
-
UKB
45h 40m2 stops
Korean Air Logo
6:40 pm - 8:40 am
UKB
-
BOS
28h 00m1 stop
$813Korean Air
Mon, Jan 26 - Mon, Feb 2
Korean Air Logo
11:00 am - 10:10 am
BOS
-
UKB
33h 10m1 stop
Korean Air Logo
11:10 am - 8:40 am
UKB
-
BOS
35h 30m1 stop
$814Korean Air
Mon, Jan 26 - Mon, Feb 2
Multiple Airlines Logo
10:15 am - 8:35 pm
BOS
-
KIX
20h 20m2 stops
Multiple Airlines Logo
3:00 pm - 10:37 pm
KIX
-
BOS
21h 37m2 stops
$835Multiple Airlines
Tue, Jan 20 - Fri, Jan 23
Multiple Airlines Logo
6:15 am - 10:20 pm
BOS
-
KIX
26h 05m2 stops
Multiple Airlines Logo
3:00 pm - 10:37 pm
KIX
-
BOS
21h 37m2 stops
$840Multiple Airlines
Tue, Feb 3 - Fri, Feb 6
ANA Logo
6:00 am - 8:00 am
BOS
-
UKB
36h 00m2 stops
ANA Logo
7:05 am - 2:12 pm
UKB
-
BOS
21h 07m2 stops
$911ANA
Sun, Feb 1 - Tue, Feb 17
Air Canada Logo
6:15 am - 7:10 pm
BOS
-
ITM
22h 55m2 stops
Air Canada Logo
2:00 pm - 10:37 pm
ITM
-
BOS
22h 37m2 stops
$916Air Canada
Mon, Feb 2 - Sat, Feb 14
ANA Logo
12:45 pm - 6:55 pm
BOS
-
ITM
40h 10m2 stops
ANA Logo
8:00 am - 12:46 pm
ITM
-
BOS
18h 46m2 stops
$919ANA
Sat, Jan 31 - Wed, Feb 11
Air Canada Logo
4:35 pm - 8:20 pm
BOS
-
ITM
37h 45m2 stops
Air Canada Logo
4:00 pm - 10:37 pm
ITM
-
BOS
20h 37m2 stops
$931Air Canada
Sun, Feb 1 - Tue, Feb 17

ANA flights from Boston to Osaka

Our best ANA deals on Boston to Osaka flight tickets
ANA
Feb 1
BOS12:45 pmBoston Logan Intl
29h 15m
2 stops
UKB8:00 amKobe
Feb 12
UKB7:05 amKobe
21h 25m
2 stops
BOS2:30 pmBoston Logan Intl
$911
ANA
Jan 31
BOS12:45 pmBoston Logan Intl
40h 10m
2 stops
ITM6:55 pmOsaka Itami
Feb 11
ITM8:00 amOsaka Itami
18h 46m
2 stops
BOS12:46 pmBoston Logan Intl
$919
ANA
Feb 19
BOS6:00 amBoston Logan Intl
20h 40m
1 stop
KIX4:40 pmOsaka Kansai Intl
Feb 25
KIX9:10 pmOsaka Kansai Intl
29h 36m
2 stops
BOS12:46 pmBoston Logan Intl
$968

Hainan Airlines flights from Boston to Osaka

Our best Hainan Airlines deals on Boston to Osaka flight tickets
Hainan Airlines
Jan 30
BOS6:40 pmBoston Logan Intl
27h 55m
2 stops
KIX12:35 pmOsaka Kansai Intl
Feb 7
KIX2:35 pmOsaka Kansai Intl
39h 45m
1 stop
BOS4:20 pmBoston Logan Intl
$796
Hainan Airlines
Jan 18
BOS6:40 pmBoston Logan Intl
27h 55m
2 stops
KIX12:35 pmOsaka Kansai Intl
Jan 27
KIX2:35 pmOsaka Kansai Intl
39h 45m
1 stop
BOS4:20 pmBoston Logan Intl
$798
Hainan Airlines
Apr 19
BOS6:40 pmBoston Logan Intl
29h 05m
2 stops
KIX12:45 pmOsaka Kansai Intl
Apr 25
KIX2:20 pmOsaka Kansai Intl
39h 20m
1 stop
BOS4:40 pmBoston Logan Intl
$816

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 January 8, 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

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Fri 1/30

6:40 pm-12:35 pm

2 stops27h 55m

Osaka Kansai Intl

Sat 2/7

2:35 pm-4:20 pm

1 stop39h 45m

$796

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sun 1/18

6:40 pm-12:35 pm

2 stops27h 55m

Osaka Kansai Intl

Tue 1/27

2:35 pm-4:20 pm

1 stop39h 45m

$798

BostonKobe

BOS - UKB

BOSUKB

Boston Logan Intl

Mon 1/26

6:00 am-5:40 pm

2 stops45h 40m

Kobe

Mon 2/2

6:40 pm-8:40 am

1 stop28h 00m

$813

BostonKobe

BOS - UKB

BOSUKB

Boston Logan Intl

Mon 1/26

11:00 am-10:10 am

1 stop33h 10m

Kobe

Mon 2/2

11:10 am-8:40 am

1 stop35h 30m

$814

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Tue 1/20

10:15 am-8:35 pm

2 stops20h 20m

Osaka Kansai Intl

Fri 1/23

3:00 pm-10:37 pm

2 stops21h 37m

$835

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Tue 2/3

6:15 am-10:20 pm

2 stops26h 05m

Osaka Kansai Intl

Fri 2/6

3:00 pm-10:37 pm

2 stops21h 37m

$840

BostonKobe

BOS - UKB

BOSUKB

Boston Logan Intl

Sun 2/1

6:00 am-8:00 am

2 stops36h 00m

Kobe

Tue 2/17

7:05 am-2:12 pm

2 stops21h 07m

$911

BostonOsaka

BOS - ITM

BOSITM

Boston Logan Intl

Mon 2/2

6:15 am-7:10 pm

2 stops22h 55m

Osaka Itami

Sat 2/14

2:00 pm-10:37 pm

2 stops22h 37m

$916

BostonOsaka

BOS - ITM

BOSITM

Boston Logan Intl

Sat 1/31

12:45 pm-6:55 pm

2 stops40h 10m

Osaka Itami

Wed 2/11

8:00 am-12:46 pm

2 stops18h 46m

$919

BostonOsaka

BOS - ITM

BOSITM

Boston Logan Intl

Sun 2/1

4:35 pm-8:20 pm

2 stops37h 45m

Osaka Itami

Tue 2/17

4:00 pm-10:37 pm

2 stops20h 37m

$931

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 typical price of a round-trip flight between Boston and Osaka?

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 $938. If you are unable to visit Osaka during the month of September, then departing from Boston during the month February is also very affordable. Most momondo users find prices during this month for around $1,001.

Can stopping save me money on Boston to Osaka flights?

You could potentially save up to 2% on your flight if you consider stops on a Boston to Osaka flight.

How have Boston to Osaka flight prices changed over time?

As of January 2026, prices for Boston to Osaka flights are approximately 28% cheaper when compared to flights at the same time last year.

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

Fastest flight time

17h 15m

Direct flights

None
The fastest flight from Boston to Osaka takes 17h 15m
There are no direct flights from Boston to Osaka. There are no popular flight routes from Boston to Osaka.
Search flight deals

  • 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 15m.

  • 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
10,603 reviews
Search Air Canada flights
Cathay PacificPriceFrom $909Free CancellationRating
7.6
1,126 reviews
Search Cathay Pacific flights
ANAPriceFrom $979Free CancellationRating
8.4
1,063 reviews
Search ANA flights
United AirlinesPriceFrom $1,056Free CancellationRating
7.4
9,142 reviews
Search United Airlines flights
Japan AirlinesPriceFrom $1,493Free CancellationRating
8.3
1,672 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

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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