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Cheap flights from Boston to Osaka from $469

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 2/9. 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.
United Airlines Logo
7:19 pm - 4:40 pm
BOS
-
KIX
31h 21m
2 stops
United Airlines Logo
6:35 pm - 9:47 pm
KIX
-
BOS
17h 12m
1 stop
$873United Airlines
Sat, Feb 14 - Fri, Feb 27
United Airlines Logo
6:00 am - 4:40 pm
BOS
-
KIX
20h 40m
1 stop
United Airlines Logo
6:35 pm - 11:57 pm
KIX
-
BOS
19h 22m
2 stops
$980United Airlines
Thu, Feb 19 - Thu, Feb 26
Multiple Airlines Logo
6:40 pm - 12:45 pm
BOS
-
KIX
29h 05m
2 stops
Multiple Airlines Logo
12:10 pm - 9:56 am
KIX
-
BOS
34h 46m
3 stops
$987Multiple Airlines
Wed, Apr 15 - Tue, Apr 28
Multiple Airlines Logo
6:40 pm - 12:45 pm
BOS
-
KIX
29h 05m
2 stops
Multiple Airlines Logo
9:10 am - 10:38 pm
KIX
-
BOS
26h 28m
2 stops
$988Multiple Airlines
Wed, Apr 15 - Tue, Apr 28
ANA Logo
6:00 am - 4:40 pm
BOS
-
KIX
20h 40m
1 stop
ANA Logo
9:10 pm - 7:08 pm
KIX
-
BOS
35h 58m
2 stops
$998ANA
Thu, Feb 19 - Wed, Feb 25
ANA Logo
5:35 am - 7:25 pm
BOS
-
KIX
23h 50m
2 stops
ANA Logo
6:45 am - 7:56 pm
KIX
-
BOS
27h 11m
2 stops
$1,004ANA
Thu, Feb 19 - Thu, Feb 26
ANA Logo
12:35 pm - 10:15 am
BOS
-
KIX
31h 40m
2 stops
ANA Logo
9:10 pm - 7:08 pm
KIX
-
BOS
35h 58m
2 stops
$1,005ANA
Thu, Feb 19 - Wed, Feb 25
Cathay Pacific Logo
1:45 am - 6:05 pm
BOS
-
KIX
27h 20m
1 stop
Cathay Pacific Logo
5:35 pm - 11:05 pm
KIX
-
BOS
42h 30m
1 stop
$1,026Cathay Pacific
Sun, May 3 - Sun, May 10
Air Canada Logo
6:15 am - 6:10 pm
BOS
-
ITM
22h 55m
2 stops
Air Canada Logo
3:00 pm - 10:38 pm
ITM
-
BOS
20h 38m
2 stops
$1,086Air Canada
Wed, Apr 15 - Tue, Apr 28
Air Canada Logo
6:50 pm - 6:55 pm
BOS
-
ITM
35h 05m
2 stops
Air Canada Logo
2:00 pm - 9:45 am
ITM
-
BOS
32h 45m
2 stops
$1,132Air Canada
Wed, May 20 - Wed, Jun 10

Air Canada flights from Boston to Osaka

Our best Air Canada deals on Boston to Osaka flight tickets
Air Canada
Feb 2
BOS6:15 amBoston Logan Intl
23h 10m
2 stops
KIX7:25 pmOsaka Kansai Intl
Mar 3
KIX7:25 pmOsaka Kansai Intl
37h 47m
2 stops
BOS7:12 pmBoston Logan Intl
$1,039
Air Canada
Jan 30
BOS6:15 amBoston Logan Intl
22h 55m
2 stops
ITM7:10 pmOsaka Itami
Feb 7
ITM3:00 pmOsaka Itami
21h 37m
2 stops
BOS10:37 pmBoston Logan Intl
$1,047
Air Canada
Apr 18
BOS10:40 amBoston Logan Intl
40h 45m
2 stops
KIX4:25 pmOsaka Kansai Intl
Apr 25
KIX6:00 pmOsaka Kansai Intl
28h 49m
2 stops
BOS9:49 amBoston Logan Intl
$1,051

Cathay Pacific flights from Boston to Osaka

Our best Cathay Pacific deals on Boston to Osaka flight tickets
Cathay Pacific
May 3
BOS1:45 amBoston Logan Intl
27h 20m
1 stop
KIX6:05 pmOsaka Kansai Intl
May 10
KIX5:35 pmOsaka Kansai Intl
42h 30m
1 stop
BOS11:05 pmBoston Logan Intl
$1,026
Cathay Pacific
Apr 18
BOS1:45 amBoston Logan Intl
27h 20m
1 stop
KIX6:05 pmOsaka Kansai Intl
Apr 30
KIX7:25 pmOsaka Kansai Intl
40h 40m
1 stop
BOS11:05 pmBoston Logan Intl
$1,122
Cathay Pacific
Apr 18
BOS1:45 amBoston Logan Intl
24h 10m
2 stops
KIX2:55 pmOsaka Kansai Intl
Apr 30
KIX7:25 pmOsaka Kansai Intl
40h 40m
1 stop
BOS11:05 pmBoston Logan Intl
$1,138

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 29, 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

Sat 2/14

7:19 pm-4:40 pm

2 stops31h 21m

Osaka Kansai Intl

Fri 2/27

6:35 pm-9:47 pm

1 stop17h 12m

$873

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Thu 2/19

6:00 am-4:40 pm

1 stop20h 40m

Osaka Kansai Intl

Thu 2/26

6:35 pm-11:57 pm

2 stops19h 22m

$980

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Wed 4/15

6:40 pm-12:45 pm

2 stops29h 05m

Osaka Kansai Intl

Tue 4/28

12:10 pm-9:56 am

3 stops34h 46m

$987

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Wed 4/15

6:40 pm-12:45 pm

2 stops29h 05m

Osaka Kansai Intl

Tue 4/28

9:10 am-10:38 pm

2 stops26h 28m

$988

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Thu 2/19

6:00 am-4:40 pm

1 stop20h 40m

Osaka Kansai Intl

Wed 2/25

9:10 pm-7:08 pm

2 stops35h 58m

$998

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Thu 2/19

5:35 am-7:25 pm

2 stops23h 50m

Osaka Kansai Intl

Thu 2/26

6:45 am-7:56 pm

2 stops27h 11m

$1,004

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Thu 2/19

12:35 pm-10:15 am

2 stops31h 40m

Osaka Kansai Intl

Wed 2/25

9:10 pm-7:08 pm

2 stops35h 58m

$1,005

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sun 5/3

1:45 am-6:05 pm

1 stop27h 20m

Osaka Kansai Intl

Sun 5/10

5:35 pm-11:05 pm

1 stop42h 30m

$1,026

BostonOsaka

BOS - ITM

BOSITM

Boston Logan Intl

Wed 4/15

6:15 am-6:10 pm

2 stops22h 55m

Osaka Itami

Tue 4/28

3:00 pm-10:38 pm

2 stops20h 38m

$1,086

BostonOsaka

BOS - ITM

BOSITM

Boston Logan Intl

Wed 5/20

6:50 pm-6:55 pm

2 stops35h 05m

Osaka Itami

Wed 6/10

2:00 pm-9:45 am

2 stops32h 45m

$1,132

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 $1,016.

Can stopping save me money on Boston to Osaka flights?

You could potentially save up to 11% 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
10,667 reviews
Search Air Canada flights
Cathay PacificPriceFrom $909Free CancellationRating
7.6
1,148 reviews
Search Cathay Pacific flights
ANAPriceFrom $979Free CancellationRating
8.4
1,078 reviews
Search ANA flights
United AirlinesPriceFrom $1,088Free CancellationRating
7.4
9,215 reviews
Search United Airlines flights
Japan AirlinesPriceFrom $1,239Free CancellationRating
8.3
1,691 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