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Cheap flights from Boston to Osaka from $727

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 7/30. 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 - 12:45 pm
BOS
-
KIX
29h 05m
2 stops
Hainan Airlines Logo
2:20 pm - 4:40 pm
KIX
-
BOS
39h 20m
1 stop
$914Hainan Airlines
Fri, Sep 4 - Sat, Sep 19
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
$934Hainan Airlines
Wed, Sep 2 - Sat, Sep 19
Multiple Airlines Logo
6:40 pm - 12:45 pm
BOS
-
KIX
29h 05m
2 stops
Multiple Airlines Logo
7:45 am - 8:44 am
KIX
-
BOS
37h 59m
3 stops
$1,089Multiple Airlines
Wed, Sep 16 - Mon, Sep 28
Multiple Airlines Logo
6:40 pm - 12:45 pm
BOS
-
KIX
29h 05m
2 stops
Multiple Airlines Logo
7:45 am - 8:44 am
KIX
-
BOS
37h 59m
3 stops
$1,090Multiple Airlines
Wed, Sep 16 - Mon, Sep 28
Air Canada Logo
6:00 am - 6:10 pm
BOS
-
ITM
23h 10m
2 stops
Air Canada Logo
2:00 pm - 6:07 pm
ITM
-
BOS
41h 07m
2 stops
$1,536Air Canada
Thu, Sep 10 - Mon, Sep 14
ANA Logo
7:28 am - 7:10 pm
BOS
-
ITM
22h 42m
2 stops
ANA Logo
12:00 pm - 7:14 pm
ITM
-
BOS
20h 14m
2 stops
$1,600ANA
Tue, Jul 21 - Tue, Jul 28
Air Canada Logo
6:00 am - 6:10 pm
BOS
-
ITM
23h 10m
2 stops
Air Canada Logo
2:00 pm - 9:50 am
ITM
-
BOS
32h 50m
2 stops
$1,638Air Canada
Thu, Sep 10 - Mon, Sep 14
United Airlines Logo
1:37 pm - 5:05 pm
BOS
-
ITM
38h 28m
3 stops
United Airlines Logo
12:50 pm - 8:01 am
ITM
-
BOS
32h 11m
2 stops
$1,669United Airlines
Tue, Jul 21 - Tue, Jul 28
United Airlines Logo
8:00 am - 5:05 pm
BOS
-
ITM
20h 05m
2 stops
United Airlines Logo
12:50 pm - 8:01 am
ITM
-
BOS
32h 11m
2 stops
$1,670United Airlines
Tue, Jul 21 - Tue, Jul 28
ANA Logo
7:10 am - 6:10 pm
BOS
-
ITM
22h 00m
2 stops
ANA Logo
12:50 pm - 11:20 pm
ITM
-
BOS
23h 30m
2 stops
$1,705ANA
Fri, Aug 14 - Sat, Aug 22

Hainan Airlines flights from Boston to Osaka

Our best Hainan Airlines deals on Boston to Osaka flight tickets
Hainan Airlines
Sep 4
BOS6:40 pmBoston Logan Intl
29h 05m
2 stops
KIX12:45 pmOsaka Kansai Intl
Sep 19
KIX2:20 pmOsaka Kansai Intl
39h 20m
1 stop
BOS4:40 pmBoston Logan Intl
$914
Hainan Airlines
Sep 2
BOS6:40 pmBoston Logan Intl
29h 05m
2 stops
KIX12:45 pmOsaka Kansai Intl
Sep 19
KIX2:20 pmOsaka Kansai Intl
39h 20m
1 stop
BOS4:40 pmBoston Logan Intl
$934
Hainan Airlines
Sep 4
BOS6:40 pmBoston Logan Intl
29h 05m
2 stops
KIX12:45 pmOsaka Kansai Intl
Sep 19
KIX2:20 pmOsaka Kansai Intl
39h 20m
1 stop
BOS4:40 pmBoston Logan Intl
$937

Cathay Pacific flights from Boston to Osaka

Our best Cathay Pacific deals on Boston to Osaka flight tickets
Cathay Pacific
Sep 15
BOS1:45 amBoston Logan Intl
30h 30m
1 stop
KIX9:15 pmOsaka Kansai Intl
Sep 28
KIX9:45 amOsaka Kansai Intl
26h 20m
1 stop
BOS11:05 pmBoston Logan Intl
$1,178
Cathay Pacific
Sep 15
BOS1:45 amBoston Logan Intl
30h 30m
1 stop
KIX9:15 pmOsaka Kansai Intl
Sep 28
KIX9:05 amOsaka Kansai Intl
27h 00m
1 stop
BOS11:05 pmBoston Logan Intl
$1,180
Cathay Pacific
Sep 15
BOS1:45 amBoston Logan Intl
24h 25m
1 stop
KIX3:10 pmOsaka Kansai Intl
Sep 23
KIX2:25 pmOsaka Kansai Intl
21h 40m
1 stop
BOS11:05 pmBoston Logan Intl
$1,184

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 May 4, 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

Fri 9/4

6:40 pm-12:45 pm

2 stops29h 05m

Osaka Kansai Intl

Sat 9/19

2:20 pm-4:40 pm

1 stop39h 20m

$914

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Wed 9/2

6:40 pm-12:45 pm

2 stops29h 05m

Osaka Kansai Intl

Sat 9/19

2:20 pm-4:40 pm

1 stop39h 20m

$934

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Wed 9/16

6:40 pm-12:45 pm

2 stops29h 05m

Osaka Kansai Intl

Mon 9/28

7:45 am-8:44 am

3 stops37h 59m

$1,089

BostonOsaka

BOS - KIX

BOSKIX

Boston Logan Intl

Wed 9/16

6:40 pm-12:45 pm

2 stops29h 05m

Osaka Kansai Intl

Mon 9/28

7:45 am-8:44 am

3 stops37h 59m

$1,090

BostonOsaka

BOS - ITM

BOSITM

Boston Logan Intl

Thu 9/10

6:00 am-6:10 pm

2 stops23h 10m

Osaka Itami

Mon 9/14

2:00 pm-6:07 pm

2 stops41h 07m

$1,536
Quickest round-trip

BostonOsaka

BOS - ITM

BOSITM

Boston Logan Intl

Tue 7/21

7:28 am-7:10 pm

2 stops22h 42m

Osaka Itami

Tue 7/28

12:00 pm-7:14 pm

2 stops20h 14m

$1,600

BostonOsaka

BOS - ITM

BOSITM

Boston Logan Intl

Thu 9/10

6:00 am-6:10 pm

2 stops23h 10m

Osaka Itami

Mon 9/14

2:00 pm-9:50 am

2 stops32h 50m

$1,638

BostonOsaka

BOS - ITM

BOSITM

Boston Logan Intl

Tue 7/21

1:37 pm-5:05 pm

3 stops38h 28m

Osaka Itami

Tue 7/28

12:50 pm-8:01 am

2 stops32h 11m

$1,669

BostonOsaka

BOS - ITM

BOSITM

Boston Logan Intl

Tue 7/21

8:00 am-5:05 pm

2 stops20h 05m

Osaka Itami

Tue 7/28

12:50 pm-8:01 am

2 stops32h 11m

$1,670

BostonOsaka

BOS - ITM

BOSITM

Boston Logan Intl

Fri 8/14

7:10 am-6:10 pm

2 stops22h 00m

Osaka Itami

Sat 8/22

12:50 pm-11:20 pm

2 stops23h 30m

$1,705

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, July 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 $429. If you are unable to visit Osaka during the month of July, then departing from Boston during the month January is also very affordable. Most momondo users find prices during this month for around $652.

Can stopping save me money on Boston to Osaka flights?

You could potentially save up to 27% 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 May 2026, prices for Boston to Osaka flights are approximately 24% more expensive 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

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 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
10,998 reviews
Search Air Canada flights
Cathay PacificPriceFrom $833Free CancellationRating
7.6
1,313 reviews
Search Cathay Pacific flights
United AirlinesPriceFrom $979Free CancellationRating
7.4
9,682 reviews
Search United Airlines flights
ANAPriceFrom $1,034Free CancellationRating
8.3
1,205 reviews
Search ANA flights
Japan AirlinesPriceFrom $1,493Free CancellationRating
8.3
1,805 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