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Cheap flights from Boston to Osaka from $446

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 4/25. 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
7:40 pm - 12:35 pm
BOS
-
KIX
27h 55m
2 stops
Hainan Airlines Logo
2:35 pm - 4:40 pm
KIX
-
BOS
39h 05m
1 stop
$863Hainan Airlines
Wed, Mar 18 - Sat, Mar 28
Hainan Airlines Logo
6:40 pm - 12:45 pm
BOS
-
KIX
29h 05m
2 stops
Hainan Airlines Logo
2:20 pm - 4:40 pm
KIX
-
BOS
39h 20m
1 stop
$879Hainan Airlines
Fri, Apr 10 - Sat, Apr 18
Multiple Airlines Logo
5:30 am - 10:15 pm
BOS
-
KIX
26h 45m
2 stops
Multiple Airlines Logo
7:25 pm - 12:12 pm
KIX
-
BOS
29h 47m
2 stops
$973Multiple Airlines
Tue, Mar 3 - Tue, Mar 10
Multiple Airlines Logo
5:30 am - 7:50 pm
BOS
-
ITM
24h 20m
2 stops
Multiple Airlines Logo
4:00 pm - 10:37 pm
ITM
-
BOS
19h 37m
2 stops
$1,009Multiple Airlines
Wed, Mar 4 - Wed, Mar 11
Multiple Airlines Logo
7:00 am - 6:40 am
BOS
-
KIX
34h 40m
2 stops
Multiple Airlines Logo
9:05 am - 11:59 pm
KIX
-
BOS
27h 54m
2 stops
$1,015Multiple Airlines
Tue, Apr 28 - Wed, May 6
Air Canada Logo
5:30 am - 4:25 pm
BOS
-
KIX
21h 55m
2 stops
Air Canada Logo
6:00 pm - 9:45 am
KIX
-
BOS
28h 45m
2 stops
$1,035Air Canada
Sun, Apr 26 - Tue, May 5
Multiple Airlines Logo
4:33 pm - 12:15 pm
BOS
-
KIX
30h 42m
2 stops
Multiple Airlines Logo
1:25 pm - 7:41 am
KIX
-
BOS
31h 16m
2 stops
$1,036Multiple Airlines
Wed, May 6 - Wed, May 20
Air Canada Logo
5:50 am - 4:25 pm
BOS
-
KIX
21h 35m
2 stops
Air Canada Logo
6:00 pm - 9:45 am
KIX
-
BOS
28h 45m
2 stops
$1,047Air Canada
Wed, May 13 - Tue, Jun 9
ANA Logo
10:40 am - 6:55 pm
BOS
-
ITM
19h 15m
2 stops
ANA Logo
2:00 pm - 9:27 pm
ITM
-
BOS
20h 27m
2 stops
$1,128ANA
Sun, Jul 26 - Wed, Aug 26
ANA Logo
10:40 am - 6:55 pm
BOS
-
ITM
19h 15m
2 stops
ANA Logo
2:00 pm - 9:27 pm
ITM
-
BOS
20h 27m
2 stops
$1,166ANA
Sat, Jul 25 - Wed, Aug 26

Air Canada flights from Boston to Osaka

Our best Air Canada deals on Boston to Osaka flight tickets
Air Canada
Apr 26
BOS5:30 amBoston Logan Intl
21h 55m
2 stops
KIX4:25 pmOsaka Kansai Intl
May 5
KIX6:00 pmOsaka Kansai Intl
28h 45m
2 stops
BOS9:45 amBoston Logan Intl
$1,035
Air Canada
May 13
BOS5:50 amBoston Logan Intl
21h 35m
2 stops
KIX4:25 pmOsaka Kansai Intl
Jun 9
KIX6:00 pmOsaka Kansai Intl
28h 45m
2 stops
BOS9:45 amBoston Logan Intl
$1,047
Air Canada
May 13
BOS5:50 amBoston Logan Intl
21h 35m
2 stops
KIX4:25 pmOsaka Kansai Intl
Jun 9
KIX6:00 pmOsaka Kansai Intl
28h 45m
2 stops
BOS9:45 amBoston Logan Intl
$1,058

Hainan Airlines flights from Boston to Osaka

Our best Hainan Airlines deals on Boston to Osaka flight tickets
Hainan Airlines
Mar 18
BOS7:40 pmBoston Logan Intl
27h 55m
2 stops
KIX12:35 pmOsaka Kansai Intl
Mar 28
KIX2:35 pmOsaka Kansai Intl
39h 05m
1 stop
BOS4:40 pmBoston Logan Intl
$863
Hainan Airlines
Apr 10
BOS6:40 pmBoston Logan Intl
29h 05m
2 stops
KIX12:45 pmOsaka Kansai Intl
Apr 18
KIX2:20 pmOsaka Kansai Intl
39h 20m
1 stop
BOS4:40 pmBoston Logan Intl
$879

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 February 20, 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

Wed 3/18

7:40 pm-12:35 pm

2 stops27h 55m

Osaka Kansai Intl

Sat 3/28

2:35 pm-4:40 pm

1 stop39h 05m

$863

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Fri 4/10

6:40 pm-12:45 pm

2 stops29h 05m

Osaka Kansai Intl

Sat 4/18

2:20 pm-4:40 pm

1 stop39h 20m

$879

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Tue 3/3

5:30 am-10:15 pm

2 stops26h 45m

Osaka Kansai Intl

Tue 3/10

7:25 pm-12:12 pm

2 stops29h 47m

$973

BostonOsaka

BOS - ITM

BOSITM

Boston Logan Intl

Wed 3/4

5:30 am-7:50 pm

2 stops24h 20m

Osaka Itami

Wed 3/11

4:00 pm-10:37 pm

2 stops19h 37m

$1,009

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Tue 4/28

7:00 am-6:40 am

2 stops34h 40m

Osaka Kansai Intl

Wed 5/6

9:05 am-11:59 pm

2 stops27h 54m

$1,015

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sun 4/26

5:30 am-4:25 pm

2 stops21h 55m

Osaka Kansai Intl

Tue 5/5

6:00 pm-9:45 am

2 stops28h 45m

$1,035

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Wed 5/6

4:33 pm-12:15 pm

2 stops30h 42m

Osaka Kansai Intl

Wed 5/20

1:25 pm-7:41 am

2 stops31h 16m

$1,036

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Wed 5/13

5:50 am-4:25 pm

2 stops21h 35m

Osaka Kansai Intl

Tue 6/9

6:00 pm-9:45 am

2 stops28h 45m

$1,047

BostonOsaka

BOS - ITM

BOSITM

Boston Logan Intl

Sun 7/26

10:40 am-6:55 pm

2 stops19h 15m

Osaka Itami

Wed 8/26

2:00 pm-9:27 pm

2 stops20h 27m

$1,128

BostonOsaka

BOS - ITM

BOSITM

Boston Logan Intl

Sat 7/25

10:40 am-6:55 pm

2 stops19h 15m

Osaka Itami

Wed 8/26

2:00 pm-9:27 pm

2 stops20h 27m

$1,166

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 $1,012. 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 $1,044.

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 February 2026, prices for Boston to Osaka flights are approximately 23% 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

19h 05m

Direct flights

None
The fastest flight from Boston to Osaka takes 19h 05m
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 19h 05m.

  • 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
10,732 reviews
Search Air Canada flights
Cathay PacificPriceFrom $909Free CancellationRating
7.6
1,171 reviews
Search Cathay Pacific flights
United AirlinesPriceFrom $979Free CancellationRating
7.4
9,321 reviews
Search United Airlines flights
ANAPriceFrom $1,029Free CancellationRating
8.4
1,095 reviews
Search ANA flights
Japan AirlinesPriceFrom $1,239Free CancellationRating
8.3
1,709 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