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BOS - KIX

$565 Find cheap flights from Boston to Osaka Kansai Intl

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 9/1. 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
Thu 7/11
Thu 7/18

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 44,212,782 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 - 6:35 amBOS-KIX
39h 50m1 stop
10:00 am - 10:20 pmKIX-BOS
25h 20m1 stop
$882Cathay Pacific
Find Deal
Sun, Sep 22 - Tue, Oct 15
1:45 am - 2:55 pmBOS-KIX
24h 10m2 stops
10:00 am - 10:20 pmKIX-BOS
25h 20m1 stop
$885Cathay Pacific
Find Deal
Sun, Sep 22 - Tue, Oct 15
6:00 am - 4:20 pmBOS-KIX
21h 20m2 stops
6:00 pm - 9:37 amKIX-BOS
28h 37m2 stops
$1,088Air Canada
Find Deal
Tue, Sep 3 - Wed, Sep 18
6:00 am - 4:55 pmBOS-KIX
21h 55m2 stops
7:00 pm - 9:31 amKIX-BOS
27h 31m2 stops
$1,108Air Canada
Find Deal
Mon, Jul 15 - Thu, Jul 18
1:20 pm - 10:10 pmBOS-KIX
19h 50m1 stop
1:15 pm - 6:15 pmKIX-BOS
18h 00m1 stop
$1,321Japan Airlines
Find Deal
Tue, Sep 3 - Wed, Sep 18
1:20 pm - 10:15 pmBOS-KIX
19h 55m1 stop
6:40 am - 6:15 pmKIX-BOS
24h 35m1 stop
$1,332Japan Airlines
Find Deal
Tue, Oct 1 - Tue, Oct 8
7:00 am - 6:55 pmBOS-KIX
22h 55m1 stop
5:45 pm - 11:20 pmKIX-BOS
18h 35m1 stop
$1,359American Airlines
Find Deal
Sun, Sep 22 - Wed, Oct 23
7:00 am - 6:55 pmBOS-KIX
22h 55m1 stop
5:45 pm - 11:35 pmKIX-BOS
18h 50m1 stop
$1,395American Airlines
Find Deal
Sun, Sep 8 - Sat, Sep 21
9:50 pm - 7:00 pmBOS-KIX
32h 10m1 stop
9:55 pm - 7:55 pmKIX-BOS
35h 00m1 stop
$1,464Turkish Airlines
Find Deal
Tue, Sep 17 - Fri, Sep 27
9:15 pm - 6:55 pmBOS-KIX
32h 40m1 stop
10:30 pm - 6:20 pmKIX-BOS
33h 50m1 stop
$1,566Turkish Airlines
Find Deal
Tue, Oct 29 - Mon, Nov 11

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, Wednesday 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 April, where tickets cost $1,227 on average. On the other hand, the most expensive months are December and November, where the average cost of tickets is $2,587 and $1,994 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 $882 on Cathay Pacific, followed by Air Canada ($1,088). One-way flight deals have also been found from as low as $584 on Air Canada and from $877 on Cathay Pacific.

Good to know

Low season

November

High season

July

Cheapest flight

$565
Best time to beat the crowds but there is an average 12% increase in price.
Most popular time to fly with an average 12% increase in price.
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 $565 for a one-way ticket and $882 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, oneworld, and SkyTeam 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, Japan Airlines or Hawaiian Airlines?

    The two airlines most popular with KAYAK users for flights from Boston to Osaka are Japan Airlines and Hawaiian Airlines. With an average price for the route of $2,848 and an overall rating of 8.3, Japan Airlines is the most popular choice. Hawaiian Airlines is also a great choice for the route, with an average price of $1,920 and an overall rating of 8.0.

  • 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 894 reviews
8.3Comfort
8.0Entertainment
8.6Boarding
7.7Food
8.8Crew
Airline reviews

excellent, the food was excellent and delicious, and the crew were very helpful and accommodating. thank you very much

10.0 Excellentgreggacad, May 2024MNL - HND
Read more about ANA reviews

excellent, the food was excellent and delicious, and the crew were very helpful and accommodating. thank you very much

Excellent. All the ticket prices have gone up so much. With only economy as the option, I thought I better pay for a good airline and I am glad I took ANA. The only thing is the long layover at Hanaeda enroute to Singapore. Any chance to bring back the service to land at Narita instead for the transit and a shorter layover will be fantastic. I am a fan of ANA.

Good. Got me there and back safely and mostly on time. 30 min delay for maintenance once but that means more time for nap. Crew was super nice.

Incredible. Amazing legroom. Over head fans for each person. Tv screens were great. Headphones were adequate. Seats were comfortable and spacious. Loved it.

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.

Great, the flight attendants were very friendly and the food was also good.

The overall flight went well and the aircrew was pleasant.

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.

Overnight flight in the old style Business class, but still very good.

I was in business class, without the business class amenities. Large seat with lots of legroom, but no TV or bed. Food was okay, but I did enjoy the Turkish red wine.

Excellent service and comfort from the moment you check in. Flight crew is hyper focused on making passengers comfortable and at ease. It’s like a flying hotel!

Only chicken as a meat dish through out the flight

Nothing really was great as such. Seen other no name airlines perform better.

Quality of service on board was very inconsistent. FA service primarily seemed robotic and they barely engaged with passengers

I’m unclear why I had to pay extra for assigned seats as Turkish airlines did not honor the seating. We were placed across the aisle from each other on TK 34, and were seated behind one another on TK 694. Because my name was misspelled on e-ticket (Klawiter, instead of Klawitter) I could not log onto website to get the connection gate number in Istanbul. The monitors in the airport were a jumbled mess 1/2 Arabic and 1/2 English.

On line check in needs a lot of improvement. I tried and gave up.

Food not good, flight attendants not the best, not accommodating very ruff

the female flight attendant was racist towards me. I could tell she treated the two other passengers next to me with more softness.

The entertainment wasn’t playing in the app or online.

Lady was a bit rude during boarding and I was being nice to her.

Why does it have to be painful to fly long distances?

It is a modern tragedy that any airline expects you to travel for 14 hours in such discomfort and that the only way to add comfort is exorbitant prices. I was in pain by the time we landed. Shameful.

Original plane sidelined. Had to wait an hour for replacement.

Crew was very cooperative and professional. Passenger's first checked in bag should be free.

No real agent onsite helping you for missing luggage there. Not like the other airline next to UA desk, they have staff attending in their desk assisting answer/helping luggage issue, even after midnight.

Horrible, the flights kept delaying, so it is obvious that we won't be able to make it to the next connection. No easier/real agent on site to help you figure this out. UA agent on other counters refuse to assist you and direct us to use the QR code/call customer service. So inefficient and poor. While technology seems convenient, but it's not the best interest/experience for customers need help while there is active issue need assistance.

Food is very bad and entertint not too many options ... flight attendet service is not good

After the morning frenzy of 35 min wait through CLT security at 4;30 AM, it was nice to have a smooth pleasant boarding experience. This 6:30 AM flight was not full. We were able to get seated swiftly and took off promptly. Nice touch they distributed the old fashioned headsets with 8 mm jacks. Snacks were decent and arrival was uneventful.

There was a mistake with the first name we only discovered at security. Air canada was unable to correct it to match then passport since it was booked through an agency. The agency could not correct it either since they need at least two hours to do that. We could not fly and lost a bunch of money. Learned my lesson about kayak.

My flight got canceled. Then AC rebooked me to a next day flight. No compensation no apology. It almost messed up my entire trip and schedule. However, all the unexpepected seems routine and ordinary to AC, so customers need to get used to.

The food was horrible the flying attendance hardly made any checks and the seats were very tied ..

I love air Canada. The staff is so helpful and friendly and attentive. I paid for extra room but chose a ser near a person who took up a lot of space which gave me less space than regular economy, I was sad I did that!

I appreciated the flight was on schedule but the crew told us that the flight would be delayed because of an air craft queue to take off. Instead of us arriving at 11.55pm, we were in Toronto at something past 2am which was a massive disadvantage on my part.

For such a long flight they should offer tea or coffee in between two meals.

No seat assignment . Last on board . Though I would not receive any boarding pass

last minute was rebooked. This rebooking made me miss my connection, added a stop in my itinerary without my approval, and had me arriving 10 hours later to my destination...for a delay that was 2 hours. To boot, my final flight from London to Athens booked me in a middle seat, where I originally booked all aisle seats. This was incredibly uncomfortable for a 24 hour journey and made me incredibly upset.

Did not appreciate “hidden fees” to check a bag for international flight and purchase a seat to be next to my spouse. Won’t choose this airline again.

The flight left over 2 hours late and caused me to miss my connecting flight. Consequently, I missed my cruise ship out of Barcelona. The cost associated with this miss was as follows: Airfare to Sicily Italy to get on the ship TWO days late - $232.30 Taxi from Airport to hotel $35 Dinner at hotel $38 Hotel in Barcelona - $208 Taxi from Sicily to hotel $70 Hotel in Sicily - $148 Prorated time missed on cruise $ 1,143

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.
9/1Sun
1 stop
37h 46mBOS-KIX
$565
8/30Fri
1 stop
19h 45mBOS-KIX
$575
8/30Fri
2 stopsAir Canada
21h 50mBOS-KIX
$584
10/24Thu
2 stopsAir Canada
33h 45mBOS-KIX
$638
8/30Fri
3 stops
27h 15mBOS-KIX
$663
8/29Thu
1 stopCathay Pacific
30h 40mBOS-KIX
$877
10/23Wed
1 stopCathay Pacific
30h 40mBOS-KIX
$911
6/27Thu
1 stopHawaiian Airlines
21h 15mBOS-KIX
$994
6/27Thu
1 stopHawaiian Airlines
21h 15mBOS-KIX
$1,090
6/27Thu
3 stopsUnited Airlines
39h 15mBOS-KIX
$7,075

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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.
6/16Sun
multi-stopCathay Pacific
39h 50mBOS-KIX
6/24Mon
multi-stopCathay Pacific
43h 00mKIX-BOS
$2,211
6/16Sun
multi-stopCathay Pacific
24h 10mBOS-KIX
6/24Mon
multi-stopCathay Pacific
43h 00mKIX-BOS
$2,227
6/16Sun
multi-stop
21h 10mBOS-KIX
6/24Mon
multi-stop
26h 40mKIX-BOS
$3,277

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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: