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Cheap flights from Boston to Osaka from $419

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 8/20. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boston to Osaka

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
6:55 pm - 4:25 pm
BOS
-
KIX
32h 30m
1 stop
Air Canada Logo
6:00 pm - 11:55 am
KIX
-
BOS
30h 55m
1 stop
$831Air Canada
Mon, Sep 14 - Wed, Sep 30
Air Canada Logo
5:50 am - 4:25 pm
BOS
-
KIX
21h 35m
2 stops
Air Canada Logo
6:00 pm - 10:40 pm
KIX
-
BOS
17h 40m
1 stop
$839Air Canada
Mon, Sep 14 - Wed, Sep 30
Multiple Airlines Logo
3:30 pm - 5:40 pm
BOS
-
KIX
36h 10m
2 stops
Multiple Airlines Logo
7:35 am - 9:28 pm
KIX
-
BOS
27h 53m
2 stops
$858Multiple Airlines
Tue, Nov 3 - Thu, Dec 3
Multiple Airlines Logo
6:50 pm - 4:25 pm
BOS
-
KIX
32h 35m
2 stops
Multiple Airlines Logo
7:35 am - 2:18 pm
KIX
-
BOS
44h 43m
2 stops
$862Multiple Airlines
Tue, Sep 15 - Wed, Nov 11
ANA Logo
5:30 am - 4:45 pm
BOS
-
KIX
21h 15m
1 stop
ANA Logo
7:05 am - 7:38 pm
KIX
-
BOS
26h 33m
2 stops
$1,051ANA
Sun, Jan 17 - Fri, Jan 29
ANA Logo
5:30 am - 4:45 pm
BOS
-
KIX
21h 15m
1 stop
ANA Logo
6:45 am - 12:47 pm
KIX
-
BOS
20h 02m
2 stops
$1,051ANA
Sun, Jan 17 - Fri, Jan 29
Japan Airlines Logo
1:00 pm - 7:50 pm
BOS
-
ITM
17h 50m
1 stop
Japan Airlines Logo
2:35 pm - 6:10 pm
ITM
-
BOS
16h 35m
1 stop
$1,107Japan Airlines
Mon, Sep 14 - Wed, Sep 30
Japan Airlines Logo
1:00 pm - 7:50 pm
BOS
-
ITM
17h 50m
1 stop
Japan Airlines Logo
2:35 pm - 6:10 pm
ITM
-
BOS
16h 35m
1 stop
$1,107Japan Airlines
Wed, Sep 9 - Thu, Sep 17
United Airlines Logo
4:15 pm - 2:50 pm
BOS
-
KIX
33h 35m
1 stop
United Airlines Logo
4:55 pm - 7:10 pm
KIX
-
BOS
39h 15m
1 stop
$1,121United Airlines
Tue, Aug 25 - Tue, Sep 15
United Airlines Logo
4:15 pm - 2:50 pm
BOS
-
KIX
33h 35m
1 stop
United Airlines Logo
4:55 pm - 10:59 pm
KIX
-
BOS
19h 04m
1 stop
$1,121United Airlines
Tue, Aug 25 - Thu, Sep 17

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Hainan Airlines flights from Boston to Osaka

Our best Hainan Airlines deals on Boston to Osaka flight tickets
Hainan Airlines
Sep 18
BOS11:55 pmBoston Logan Intl
23h 50m
1 stop
KIX12:45 pmOsaka Kansai Intl
Sep 30
KIX2:20 pmOsaka Kansai Intl
20h 40m
1 stop
BOS10:00 pmBoston Logan Intl
$889
Hainan Airlines
Nov 4
BOS10:55 pmBoston Logan Intl
23h 40m
1 stop
KIX12:35 pmOsaka Kansai Intl
Nov 20
KIX2:35 pmOsaka Kansai Intl
20h 25m
1 stop
BOS9:00 pmBoston Logan Intl
$905
Hainan Airlines
Sep 4
BOS11:55 pmBoston Logan Intl
23h 50m
1 stop
KIX12:45 pmOsaka Kansai Intl
Sep 13
KIX2:20 pmOsaka Kansai Intl
20h 40m
1 stop
BOS10:00 pmBoston Logan Intl
$935

Air Canada flights from Boston to Osaka

Our best Air Canada deals on Boston to Osaka flight tickets
Air Canada
Sep 14
BOS6:55 pmBoston Logan Intl
32h 30m
1 stop
KIX4:25 pmOsaka Kansai Intl
Sep 30
KIX6:00 pmOsaka Kansai Intl
30h 55m
1 stop
BOS11:55 amBoston Logan Intl
$831
Air Canada
Sep 14
BOS5:50 amBoston Logan Intl
21h 35m
2 stops
KIX4:25 pmOsaka Kansai Intl
Sep 30
KIX6:00 pmOsaka Kansai Intl
17h 40m
1 stop
BOS10:40 pmBoston Logan Intl
$839
Air Canada
Sep 14
BOS5:50 amBoston Logan Intl
24h 05m
2 stops
ITM6:55 pmOsaka Itami
Sep 30
ITM12:50 pmOsaka Itami
21h 36m
2 stops
BOS9:26 pmBoston Logan Intl
$840

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 July 30, 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

Mon 9/14

6:55 pm-4:25 pm

1 stop32h 30m

Osaka Kansai Intl

Wed 9/30

6:00 pm-11:55 am

1 stop30h 55m

$831

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Mon 9/14

5:50 am-4:25 pm

2 stops21h 35m

Osaka Kansai Intl

Wed 9/30

6:00 pm-10:40 pm

1 stop17h 40m

$839

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Tue 11/3

3:30 pm-5:40 pm

2 stops36h 10m

Osaka Kansai Intl

Thu 12/3

7:35 am-9:28 pm

2 stops27h 53m

$858

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Tue 9/15

6:50 pm-4:25 pm

2 stops32h 35m

Osaka Kansai Intl

Wed 11/11

7:35 am-2:18 pm

2 stops44h 43m

$862

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sun 1/17

5:30 am-4:45 pm

1 stop21h 15m

Osaka Kansai Intl

Fri 1/29

7:05 am-7:38 pm

2 stops26h 33m

$1,051

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Sun 1/17

5:30 am-4:45 pm

1 stop21h 15m

Osaka Kansai Intl

Fri 1/29

6:45 am-12:47 pm

2 stops20h 02m

$1,051
Quickest round-trip

BostonOsaka

BOS - ITM

BOSITM

Boston Logan Intl

Mon 9/14

1:00 pm-7:50 pm

1 stop17h 50m

Osaka Itami

Wed 9/30

2:35 pm-6:10 pm

1 stop16h 35m

$1,107

BostonOsaka

BOS - ITM

BOSITM

Boston Logan Intl

Wed 9/9

1:00 pm-7:50 pm

1 stop17h 50m

Osaka Itami

Thu 9/17

2:35 pm-6:10 pm

1 stop16h 35m

$1,107

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Tue 8/25

4:15 pm-2:50 pm

1 stop33h 35m

Osaka Kansai Intl

Tue 9/15

4:55 pm-7:10 pm

1 stop39h 15m

$1,121

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Tue 8/25

4:15 pm-2:50 pm

1 stop33h 35m

Osaka Kansai Intl

Thu 9/17

4:55 pm-10:59 pm

1 stop19h 04m

$1,121

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?

Prices are currently low for flights on this route.

Typical prices usually range from $1,227 to $1,858.
The lowest price recently found on this route was $831.

What is the cheapest month to fly to Osaka?

In general, February 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 $1,179. If you are unable to visit Osaka during the month of February, then departing from Boston during the month January is also very affordable. Most momondo users find prices during this month for around $1,230.

Can stopping save me money on Boston to Osaka flights?

You could potentially save up to 28% 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

Fastest flight time

17h 40m

Direct flights

None
The fastest flight from Boston to Osaka takes 17h 40m
There are no direct flights from Boston to Osaka. There are no popular flight routes from Boston to Osaka.
Search flight deals

Frequently asked questions about flying from Boston to Osaka

  • 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
11,407 reviews
Search Air Canada flights
Cathay PacificPriceFrom $833Free CancellationRating
7.6
1,433 reviews
Search Cathay Pacific flights
United AirlinesPriceFrom $920Free CancellationRating
7.4
10,046 reviews
Search United Airlines flights
ANAPriceFrom $945Free CancellationRating
8.3
1,285 reviews
Search ANA flights
Japan AirlinesPriceFrom $1,686Free CancellationRating
8.3
1,888 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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Sat 8/29
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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