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BOS - KIX

$608 Find cheap flights from Boston to Osaka Kansai Intl Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Kansai Intl departing on 5/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 5/25
Sat 6/1

Search hundreds of travel sites at once for deals on flights to Osaka Kansai Intl

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Osaka.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Osaka.
In the last 7 days travelers have searched 45,119,101 times on KAYAK, and here is why:

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Cheap flight deals from Boston to Kansai Intl (BOS-KIX)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Kansai Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
1:45 am - 9:25 pmBOS-KIX
30h 40m1 stop
10:00 am - 10:20 pmKIX-BOS
25h 20m1 stop
$973Cathay Pacific
Find Deal
Tue, Sep 17 - Wed, Sep 25
1:45 am - 6:35 amBOS-KIX
39h 50m1 stop
10:00 am - 10:20 pmKIX-BOS
25h 20m1 stop
$982Cathay Pacific
Find Deal
Mon, Sep 16 - Mon, Sep 30
6:00 am - 4:55 pmBOS-KIX
21h 55m2 stops
6:00 pm - 9:37 amKIX-BOS
28h 37m2 stops
$1,268Air Canada
Find Deal
Wed, Sep 18 - Wed, Sep 25
6:00 am - 4:20 pmBOS-KIX
21h 20m2 stops
7:30 pm - 9:29 amKIX-BOS
26h 59m2 stops
$1,274Air Canada
Find Deal
Thu, Jul 25 - Tue, Aug 6
9:50 pm - 7:00 pmBOS-KIX
32h 10m1 stop
9:55 pm - 7:55 pmKIX-BOS
35h 00m1 stop
$1,305Turkish Airlines
Find Deal
Wed, Sep 18 - Wed, Sep 25
9:50 pm - 7:00 pmBOS-KIX
32h 10m1 stop
9:55 pm - 7:55 pmKIX-BOS
35h 00m1 stop
$1,306Turkish Airlines
Find Deal
Wed, Sep 18 - Wed, Sep 25
9:50 pm - 7:00 pmBOS-KIX
32h 10m1 stop
9:55 pm - 2:51 pmKIX-BOS
29h 56m2 stops
$1,356
Find Deal
Wed, Sep 4 - Wed, Sep 18
1:30 pm - 9:50 amBOS-KIX
31h 20m1 stop
7:15 am - 6:00 amKIX-BOS
35h 45m2 stops
$1,401
Find Deal
Sat, May 4 - Sun, May 12
1:40 pm - 9:35 pmBOS-KIX
42h 55m3 stops
5:25 pm - 6:04 pmKIX-BOS
37h 39m3 stops
$1,408Singapore Airlines
Find Deal
Wed, Oct 16 - Wed, Oct 23
3:20 pm - 4:10 pmBOS-KIX
35h 50m3 stops
5:25 pm - 6:04 pmKIX-BOS
37h 39m3 stops
$1,454Singapore Airlines
Find Deal
Tue, Sep 3 - Sun, Sep 15

Flights from Boston to Kansai Intl - Travel Insights & Trends

Get data-powered insights and trends into flights from Boston to Kansai Intl to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Boston to Osaka Kansai Intl?

The average price of all flights from Boston to Osaka Kansai Intl Airport clicked on KAYAK for each day over the last 12 months.
For Boston to Osaka Kansai Intl, Friday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Osaka Kansai Intl back to Boston, the best deals are generally found on Tuesday, with Friday being the most expensive.

What is the cheapest month to fly from Boston to Osaka Kansai Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Boston to Osaka Kansai Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Boston to Osaka Kansai Intl Airport is February, where tickets cost $1,369 on average. On the other hand, the most expensive months are December and May, where the average cost of tickets is $2,157 and $2,132 respectively.

Which airlines provide the cheapest flights from Boston to Osaka Kansai Intl?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from Boston to Osaka Kansai Intl found by KAYAK users in the last 72 hours was for $973 on Cathay Pacific, followed by Air Canada ($1,268). One-way flight deals have also been found from as low as $976 on Air Canada and from $1,034 on Hawaiian Airlines.

Good to know

Low season

February

High season

March

Cheapest flight

$608
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Boston to Osaka Kansai Intl

When to book flights from Boston to Kansai Intl

Are your dates flexible? Find out the best times to travel from Boston to Kansai Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Boston to Osaka Kansai Intl flights

  • What is the cheapest flight from Boston to Osaka Kansai Intl Airport?

    In the last 3 days, the lowest price for a flight from Boston to Osaka Kansai Intl Airport was $608 for a one-way ticket and $973 for a round-trip.

  • Do I need a passport to fly between Boston and Osaka Kansai Intl?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Boston and on arrival in Osaka Kansai Intl.

  • Which aircraft models fly most regularly from Boston to Osaka Kansai Intl?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boston to Osaka Kansai Intl?

    Star Alliance, and oneworld are the airline alliances operating flights between Boston and Osaka Kansai Intl, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Boston to Osaka, Hawaiian Airlines or Cathay Pacific?

    The two airlines most popular with KAYAK users for flights from Boston to Osaka are Hawaiian Airlines and Cathay Pacific. With an average price for the route of $1,920 and an overall rating of 8.0, Hawaiian Airlines is the most popular choice. Cathay Pacific is also a great choice for the route, with an average price of $1,606 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Boston to Osaka Kansai Intl?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Osaka Kansai Intl.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Osaka Kansai Intl?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Osaka Kansai Intl from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Osaka Kansai Intl?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Osaka Kansai Intl with an airline and back to Boston with another airline. Booking your flights between Boston and KIX can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Osaka Kansai Intl?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Osaka Kansai Intl from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Boston to Kansai Intl

 
See real verified KAYAK customer reviews for airlines flying from Boston to Osaka. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Kansai Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
ANAOverall score based on 948 reviews
8.8crew
8.3comfort
7.8food
8.6boarding
8.0entertainment
Airline reviews

The space for the seats i like it. Its not too close like other air line. The food is ok and also the staff. I'm waiting for my flight rewards point because until now i didn't recieved it.

10.0 ExcellentAnonymous, Apr 2024MNL - HND
Read more about ANA reviews

The space for the seats i like it. Its not too close like other air line. The food is ok and also the staff. I'm waiting for my flight rewards point because until now i didn't recieved it.

The staff, ground and air, at ANA was very helpful and friendly during check in, boarding and during the flight. This is the reason why I always fly ANA whenever I go to Manila. The food was not the best but the flight crew more than makes up for the shortfall.

First I will say this was really NOT an ANA flight. ANA used a UNITED jet to perform this flight. I specifically booked with ANA because I did NOT WANT TO FLY UNITED FOR INTERNATIONAL FLIGHTS. So to spend $1800.00 and then discover after booking that it was going to be handled by United was very disappointing. I will be more careful next time when I book. The interior was very cramped in economy class; the dinner meal was terrible and also had extremely small portions for an international flight - the bread roll was ice cold and stale - that salad was very wilted; I’ve never had a “snack” that was so salty that it was difficult to eat; the breakfast “waffle” was practically unrecognizable. Really horrible meals for a very expensive international flight. Bathroom floor was also pretty dirty. I’m hoping my return flight is a real ANA airplane that is cleaned and serviced by ANA personnel with ANA meals. I will never book with ANA again if they continue to use UNITED airline jets. Yuck!!!🤢

Ticket was purchased as a United Airlines flight (operated by All Nippon) like what does that even mean? Makes for a VERY confusing flight experience. For instance, what do I look for a United drop off signage and ticket counter or ANA? No explanation anywhere to be found. I also felt a little bit scammed by the obsurdely restrictive seat selection provided. Only middle seats available!! Are you kidding me!! On 6hr + 10hr flights you're forcing me into the middle seat without telling me before I purchased the ticket?? This should be illegal. And to top it off, on the Tokyo LA leg there were quite a few empty seats including window seats! I must also say, the food was a dissappointing as well for my taste, fish with rice ( mostly plain white rice) or a vegetable medly for the breakfast meal? Should be at least 4 choices and at least 1 with eggs. Outside of these issues flight was otherwise ok.

Ground and flight crew were all courteous, extremely helpful and professional. Overall, process is really organized, from boarding to disembarkation.

This is a very long flight and the first time I have flown on a Japanese airline. I was very impressed with the staff. They worked hard and offered food and drink regularly. Plane was very well cared for. The let room was good . Food was ok but better than other airlines.

It was very nice. I was a bit disappointed by the few meal services. There were probably more drink services that I missed while sleeping, but I would have liked the crew to bring more than one drink service before landing and to bring more than one drink service and coffee service after take off

The space and bed was very comfortable , flight attendants very nice. The food was not tasty at all. I ordered the rib eye and it was so tough I couldn’t cut it.

I wish the serve should leach and drink. Maybe because only 2hr

Seat was roomy enough . The Asian selection for a meal was good . The tortellini was not very good. Service was excellent. O

Cathay Pacific seems to be an airline in trouble and on its way out. Lots of broken or poorly functioning things like entertainment screens, seats, and enough well trained staff to handle a full flight. Sad...

The flight crew was exceptionally good. Personal needs were well met. The food choices were very nice.

Excellent. Planes are a little older and could get some refurbishment, but besides that everything was excellent.

While I was in great pain, the seat was sufficiently comfortable to allow me to rest and not be in so much pain.

we were upgraded which was a blessing and tender mercy for us. I fell the day before and was in extreme pain from knee to shoulder. Sitting in a more comfortable seat during the flight was an unexpected blessing and experience.

My seat was sold off to someone else. Had to wait 9 hours to catch the next filght. Definitely will never use Cathay Pacific again. Bad, very bad airline. will comment on google reviews too.

Very poor check-in experience, and flight meal service was very disappointing with no drinks service or hot meal.

Seats were very comfortable. Crew were excellent. Food very good.

Flight crew was especially thoughtful and attentive, made sure our seats were comfortable so we could rest on the long flight

The coffee in Premium economy and economy is terrible. That's it. Everything else is great

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

Flight delayed from Cape Town to Washington then got diverted to miami and in miami we had to fend for ourselves , im still trying to get to Shreveport now

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

I just wrote a text which was supposed to be for the flight from Denver to spokane not Frankfurt to Denver.

On time every leg of the journey and exceptional staff at counter, gate, and on board. I haven’t travelled in US for a long time and was genuinely surprised how pleasant this was.

Hated every minute of it. This flight should have only taken 1.5hrs but was delayed over 10hours. Now I am being told I cannot be compensated or refunded my ticket price or extra leg room, which I purchased but did not receive, because the airline is throwing the blame on the 3rd party I purchased tickets through and 3rd party putting the blame on airline. No one wants to help. They received their money and that's all they care about. Im going on 3 days of still trying to get to my final destination, had to cancel car rental, car insurance and hotel. Currently staying in airport until hotels open up. Thank you Lufthansa, Kayak, Underpricer and United for making this trip the worst ever.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

flight delays, staff only communicating when pushed, food service lasting a grand total of 7 minutes, stuck in seat from 45mins into flight until landing

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

the flight from Tampa departed with a delay. The food on board was poor, usually on international airlines alcoholic beverages are offered free of charge , but here it was for a fee, the cutlery was wooden, there were no hot drinks (tea, coffee). Unfortunately, I didn't take pictures of the portions of food, but it wouldn't have been enough for a child either.And in the future, I will try not to use the services of this airline

Just get Economy Plus for international flights, so worth it the extra room, bigger seats…

delayed delayed delayed. was supposed to have a 2 hour layover and very nearly missed my connection.

Despite a bumpy flight the pilot was great. The rest of the crew on the other hand couldn’t care less if a passenger would colapse and die. Horrible service, robot like, lifeless…

No service due to turbulence. No entertainment on this type of aircraft. But nice old comfortable seats.

Great service, on time, professional experience. Great landing under challenging crosswind conditions at BWI. I made my connection in Charlotte despite the plane getting stuck finding a gate to park in on arrival. The only glitch -- the Airbus 320 from CLT to BWI was quite comfortable, but the larger 321 from Logan to Charlotte had minimal leg/knee room. I get that it's a high volume route but dang, couldn't even open my laptop it was so tight

Let's give credit where due: this is JAL's flight, not American's. And nothing is going to make 12+ hours in the air truly enjoyable. That said, the cabin crew was solicitous and friendly, the Japanese food excellent. The business class seats on the 787 were a little claustrophobic in bed mode -- one felt like one was lying at the bottom of a canyon -- and seat and light controls are not conveniently placed -- but comfortable enough. Restrooms were spotless and well-stocked throughout the flight. The Business Class lounge at Narita is very comfortable and quiet -- my one caveat is that a broader selection of food, including some Western selections, would have been welcome.

Uncomfortable plane, no entertainment and to board they had us standing in a line for over 20-30 minutes

Flight was delayed twice then cancelled. We were never notified of a new booking.

JAL is one of the best airlines out there, hands down.

I fly to Japan for work a lot and this is the first time I've ever had a crew not hand out customs forms. I had to spend a ton of time filling out paperwork after landing. When I'm on JAL, they give you the paperwork 2 hours before landing. If I'm traveling for 18 hours the LEAST you can do is help me save some time. My American legs home are also awful. Fly Delta or JAL. American is terrible for international flights.

Due to a strike taking place with the airline, it negatively impacted my flight in multiple ways. My flight was delayed over 2 hours and the food served was mediocre at best.

Cabin crew were great. Seats are criminal for tall people

Flight was delayed 1.5 hrs due to problem with a previous flight to mine; I was informed appropriately via Text & Email, however, website did not keep up with messages sent by nearly an hour. When checking-in warm & friendly reception at check-in desk until female Air Canada Rep noticed my flight number and instantly pivoted to a condescending & sarcastic comments about getting my bag checked in since I’m running so late; then tone instantly changed again few minutes later when she muttered, “Oh, they’ve delayed it” another sign systems & worse front line staff, not fully informed or simply not reading their flight status updates. Flight crew were very friendly & did a great job trying to make up lost time due to the delay.

It was great, love the experience and will definitely recommend 👌. Communication was great

My flight was great! Gate attendants and crew were great… pleasant and in good spirits. Flight delayed several hours and we were well informed of the status while on plane. Thank you!

The fact that I got to Toronto alive and well and safe is a huge plus. I thank the captain and crew for a safe flight The comfort of the aircraft leaves much to be desired. Human beings should not have to be that cramped and squashed on a flight that we pay a lot for and even have to pay for lousy food choices The cabin crew were pleasant and helpful Kudos to them as the flight was packed to capacity and there was a lot of work for them in a short space of time All in all a good experience, but too cramped

It was great to check carryon luggage at no charge when there was no room for ours. A hidden benefit of having low-tier tickets. Also great to stay off plane as long as possible. Airline gave us seats we wanted on this last leg, again at no charge.

Fresh fuit or veg snacks would be so great, but there are two good restaurants in Denver airport. Try Etais UDIS or Freshens DIA for nutritious delicious pita sandwiches/ donairs and crepes in Freshens.

The late departure Of two hours waitresses, immature, and gossiping

Crowded plane but it flew on time and had friendly staff

Book cheap flights from Boston to Osaka

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Boston to Osaka found on KAYAK in the last 72 hours.
5/29Wed
3 stops
45h 56mBOS-KIX
$608
6/1Sat
2 stops
53h 14mBOS-KIX
$784
5/20Mon
3 stops
33h 30mBOS-KIX
$801
5/9Thu
2 stopsAir Canada
33h 05mBOS-KIX
$976
5/10Fri
2 stopsAir Canada
21h 05mBOS-KIX
$982
5/9Thu
1 stopHawaiian Airlines
21h 45mBOS-KIX
$1,034
5/27Mon
1 stopHawaiian Airlines
21h 15mBOS-KIX
$1,100
5/26Sun
1 stopTurkish Airlines
32h 10mBOS-KIX
$1,331
6/1Sat
1 stopCathay Pacific
30h 40mBOS-KIX
$1,621
6/1Sat
2 stopsCathay Pacific
24h 10mBOS-KIX
$1,637

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Last minute flights from Boston to Kansai Intl

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Boston to Osaka that are departing in the next 10 days.
4/28Sun
multi-stopCathay Pacific
39h 50mBOS-KIX
5/27Mon
multi-stopCathay Pacific
26h 10mKIX-BOS
$1,012
4/28Sun
multi-stopCathay Pacific
24h 10mBOS-KIX
5/27Mon
multi-stopCathay Pacific
26h 10mKIX-BOS
$1,027
4/28Sun
multi-stopCathay Pacific
24h 10mBOS-KIX
5/27Mon
multi-stopCathay Pacific
43h 00mKIX-BOS
$1,058
4/29Mon
multi-stopTurkish Airlines
32h 10mBOS-KIX
6/4Tue
multi-stopTurkish Airlines
35h 00mKIX-BOS
$1,195
4/28Sun
multi-stop
27h 45mBOS-KIX
5/30Thu
multi-stop
40h 03mKIX-BOS
$1,261
4/28Sun
multi-stop
27h 45mBOS-KIX
6/4Tue
multi-stop
39h 53mKIX-BOS
$1,302
4/29Mon
multi-stopTurkish Airlines
32h 10mBOS-KIX
5/21Tue
multi-stopTurkish Airlines
35h 00mKIX-BOS
$1,417
4/28Sun
multi-stopQatar Airways
30h 00mBOS-KIX
5/12Sun
multi-stopQatar Airways
33h 20mKIX-BOS
$2,262
4/29Mon
multi-stopSingapore Airlines
36h 49mBOS-KIX
5/21Tue
multi-stopSingapore Airlines
41h 01mKIX-BOS
$3,104
4/29Mon
multi-stopSingapore Airlines
43h 50mBOS-KIX
5/20Mon
multi-stopSingapore Airlines
59h 01mKIX-BOS
$3,208

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Boston - Osaka Kansai Intl Flights

Departure:

Boston (BOS)United States

Destination:

Osaka Kansai Intl (KIX)Japan

Return flight deals:

Osaka Kansai Intl - Boston

Cabin classes: