BOS - KIX

$603 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 5/6. 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.
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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 44,234,009 times on KAYAK, and here is why:

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Cheap Flight Deals from Boston to Osaka 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 Osaka 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.

Recent round-trip flight deals from Boston to Kansai Intl

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Boston to Kansai Intl.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
7:00 am - 1:20 pmBOS-KIX
41h 20m2 stops
4:30 pm - 11:24 pmKIX-BOS
43h 54m2 stops
$966China Eastern
Find Deal
Thu, Mar 13 - Mon, Mar 17
12:30 am - 9:05 pmBOS-KIX
30h 35m1 stop
4:05 pm - 10:00 pmKIX-BOS
43h 55m2 stops
$1,005Cathay Pacific
Find Deal
Sun, Jan 26 - Mon, Feb 10
6:00 am - 10:15 pmBOS-KIX
26h 15m2 stops
7:10 am - 2:23 pmKIX-BOS
21h 13m2 stops
$1,141ANA
Find Deal
Sun, Feb 2 - Fri, Feb 14
6:00 am - 7:25 pmBOS-KIX
23h 25m2 stops
7:10 am - 12:46 pmKIX-BOS
19h 36m2 stops
$1,166ANA
Find Deal
Sun, Feb 2 - Wed, Feb 12
7:10 am - 8:10 amBOS-KIX
35h 00m2 stops
6:05 pm - 9:50 amKIX-BOS
28h 45m2 stops
$1,197Air Canada
Find Deal
Sun, Jan 26 - Thu, Jun 5
3:40 pm - 4:20 pmBOS-KIX
35h 40m2 stops
6:00 pm - 10:08 amKIX-BOS
29h 08m2 stops
$1,199Air Canada
Find Deal
Tue, Apr 1 - Tue, Apr 15
8:30 am - 4:35 pmBOS-KIX
42h 05m2 stops
6:30 pm - 9:50 amKIX-BOS
29h 20m2 stops
$1,257United Airlines
Find Deal
Sat, Feb 1 - Wed, Feb 12
6:40 pm - 7:30 pmBOS-KIX
34h 50m2 stops
9:30 pm - 3:00 pmKIX-BOS
31h 30m1 stop
$1,265Hainan Airlines
Find Deal
Sun, Jan 19 - Thu, Jan 30
6:40 pm - 7:30 pmBOS-KIX
34h 50m2 stops
9:30 pm - 3:00 pmKIX-BOS
31h 30m1 stop
$1,268Hainan Airlines
Find Deal
Fri, Feb 14 - Sat, Feb 22
12:12 pm - 4:35 pmBOS-KIX
62h 23m2 stops
6:30 pm - 9:52 pmKIX-BOS
17h 22m1 stop
$1,278United Airlines
Find Deal
Sun, Feb 2 - Fri, Feb 14

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 Friday is the most expensive. Flying from Osaka Kansai Intl back to Boston, the best deals are generally found on Monday, with Friday being the most expensive.

How far in advance should I book a flight from Boston to Osaka Kansai Intl Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure 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 average of all the values for each month.
To get a below average price on the flight from Boston to Osaka Kansai Intl Airport, you should book around 4 days before departure. For the absolute cheapest price, our data suggests you should book 62 days before departure.

Good to know

Low season

November

High season

September

Cheapest flight

$603
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly and prices are also 31% 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 $603 for a one-way ticket and $966 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?

    SkyTeam, 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, ANA or Cathay Pacific?

    The two airlines most popular with KAYAK users for flights from Boston to Osaka are ANA and Cathay Pacific. With an average price for the route of $2,316 and an overall rating of 8.4, ANA is the most popular choice. Cathay Pacific is also a great choice for the route, with an average price of $1,122 and an overall rating of 7.6.

  • 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.
8.0
DeltaOverall score based on 8713 reviews
8.2Boarding
7.3Food
7.9Comfort
8.6Crew
7.9Entertainment
Airline reviews

Customer service at the gate in the flight was exceptional. On time. Aircraft and seat was decent. Thanks Delta. 💗

10.0 ExcellentHartaj, Nov 2024LGA - RDU
Read more Delta reviews

Customer service at the gate in the flight was exceptional. On time. Aircraft and seat was decent. Thanks Delta. 💗

It was terrible, if they ran flights on time it would make a big difference.

Great flight. On-time, comfortable, clean aircraft, and offered snacks pre-flight to plan for a potentially turbulent route. I wish there was Wi-Fi an all Delta Aircrafts but for a short flight this is not much of a problem.

Delta seems to be improving in many areas, except they are super bad with the food available. Bring back normal food service on long flights.

If I pay extra for "comfort+" I expect leg room where I can stretch my legs. I was seated with an attendant's seat blocking my feet. Knee space was fine but my feet had less room than the non-"comfort+" seats. Also, don't go cheap on food when you have flights of 3+ hours. It's insulting.

Everything was good except when we're on a 6 hour flight at dinner time and all they offer as part of the fare are little bags of junk food, it's disappointing. Bring back food service without an added price.

I sat in comfort plus. It was fine. Seats were comfortable. I got drinks and snacks.

Crew was nice. Flight was timely. Seats could be better as well as the food considering it’s first class.

Left on time and arrived early this extending our 31 minute transfer. Bags made it also!

Good and consistent Printer in lounge did not work for me :(

Food was hood for airline food with good poftion and variety in meals. Frequency of beverage service was very low and amount of soda with meals was inadequate.

Excellent service provided the flight crew. Food and drinks were very good.

Meal options for vegetarians can be provided… Nothing was offered for me for dinner.. crew just said no vegetarian option available and did even bother to provide any alternatives or something to eat.

I was really impressed with the experience it was my first trip overseas. Nice staff

Not enough food for everyone. . Always run out of food when we ask

I was amazed at how clean Cathay Pacific planes were compared to our US domestic airlines. Everything was great all but the food service I was just okay with. Shorter flights with other airlines usually provided more meals and snacks that I have been on. Almost a 16 hour flight just two meals and no snacks with Cathay Pacific. Even ran out of what I wanted for one of them. Other than that top notch!

They charged me $900 to board my flight I already paid for just because I missed my previous flight. I do not recommend this airline by any means.

Not good. Small seats. Not enough food that customers wanted. No special requests were given that i could see. Slow response from flight attendants

For a transpacific flight, flying economy is awful! The seats are cramped and its meant for petite folks! Good luck if you have long legs. BOARDING - AWFUL, we got to Hong Kong - the gate was listed, but upon arrival, there was a MESS of boarding procedures, they basically DIY'ed how to board but making three lines and putting three ground crew to check for passports in the terminal area. THEN to make it worse, after going through that cattle process, all of a sudden you see people standing and looking confused, apparently we were told to get in line to board, but the AV notification wasnt even working. So people started cramming in line - worse than cattle. One saving point, the flight crew forgot to serve me dinner and after waiting for it, I fell asleep since this was a midnight flight. After letting a crew know that I was forgotten, all of my meals were served first !!! Yay for being in the economy seats! Nothing much to write home about once more!

Was a nice experience, crews were nice and accommodating. My only complain is the super tight leg room for the economy class.

Terrible boarding process, no proper line maintained even for business class, crews are not very attentive, business class food quality / variety / quantity have gone down, everything has become cheap.

Check in was not available online. It was super long line to check in

I did not have a good experience from the first point of contact to the check in person to boarding and the comfort of the seats. I would not travel on Turkish again. I will let my family and friends know about my experience which was not a pleasant one.

Food quality and the overall service of the staff and significantly decreased. The flight was delayed at the Istanbul airport and the passengers were kept onboard for more than 3 hours. The staff didn’t kept the passengers informed and everyone was upset.

Cross Atlantic flight terrible aircraft TK10 on the way back : Old configuration tacky . The boarding in Istanbul at the gate fly TK686 was a mess unorganized , very rude ground staff . Overall never again

The food served was frozen salad and hummus. The hot meal was fine. Crew was doing bare minimum

I enjoy flying with Turkish Airlines and such good hospitality among the crew memebers

Good food and wine. Some of the Guy who are in charge to board Passengers on the plane couldn’t use the word “Please” to direct them drop their hand luggage to be loaded on Plane bcos he said the inside storage may not have enough room for all.

Turkish Airlines apparently no longer gives you 2 checked bags allowance on international flights, so that pleasure cost me $165 for my second suitcase at the airport. On top of that, they damaged that very suitcase, which happens to be a designer one and part of a set - ripped one of the four wheels right off.

Pretty standard for long haul international flying. Food was fine, tv/movie selection was great, wifi did not work at all, crew was pleasant enough.

The flying experience was great. The flight was on time with no boarding issues during a peak travel period. The short cut baggage drop and process was not smooth and efficient at Dulles.

Flight attendant gave incorrect information and no immigration/customs forms!

No food service almost missed because of first flight delays

It was good. Just that the seats could not be reclined. The people behind were not ready to let the chairs be reclined

Plane was was better than th YVR to ORD flight but was a fraction of the distance. Fly your better planes on longer distance flights.

After checking in online i called United to make sure I have special food ordered ( kosher option). Representative I spoke with on the phone with assured me that special meal was ordered. On the plane, during meal service I was informed that there is no note about it and no kosher meal was ordered for me. Flight attendant said she will check if maybe was a mix up and meal is somewhere. But never came back with any update. So entire flight with no food...

Delays from united along with Newark air space caused delays. But an average flight! Unfortunately we come to expect delays from the airlines.

My flight was delayed. They boarded us, then no sooner were we on the plane, they made us get off again and wait another 45 minutes before doing it all over again.

Had a hard time finding my assigned seat. No attendants to assist.

Attendants zipped through cabin so fast hardly anyone got the water they told us we could have in the short flight. Nothing else was offered.

The fact that we have to check in our carryons when we met the requirements and there was plenty of spaces near we sat was ridiculous

From charlotte to Toronto was not good From Toronto to Dubai was very good

Your survey should include a "Not Applicable" response for those elements that were not utilized, such as food (unless your want me to rate the cookie I received) and the entertainment (unless you want me to rate the emergency landing presentation). Boarding was late, the plane took-off almost an hour late, and the gate to board changed five times while I was waiting there. At 1:00 pm the plane had not yet approached the gate for passengers to load, yet the information board indicated that the take-off would be 12:30 pm and its status was "on time". Curious.

I was forced to check my carry-on bag, which I don't appreciate.

Republic was fine but Air Canada was terrible in the airport. They issues me a boarding pass that I placed in my wallet and then when I showed up at the airport they had taken the bar code away from the ticket because they changed the flight number even though the flight stayed the same time. This caused me to be unable to go through security and I had to go to Air Canada for help and they were horrible and almost caused me to miss my flight. Luckily I managed to get it figured out on my own phone, not the kiosks, or the agent I asked for help or the long line I was standing in!!

Flight was fine. Arrived on time. More room in the seats would be nice, but not something that is likely to happen.

Unfortunately your planes need maintenance. I am surprised your bathroom in business class was not working in 8 hour flight. Coffee machine was broken. Seat adjustment panel was bad. I will stay away from Air Canada in future travel.

I was in Business Class row 7 on a 787-9. Both times I didn't get my choice of food. Otherwise, excellent!

Problem with operation of on board entertainment computer. Failed about 1 /2 hour into the flight. Rebooting failed to restore.

Putting carryone size suitcase into the overhead luggage storage on a the small CR900 plane was cumbersome and its assignment to a far far gate w/o the moveable ramps at YYZ arrivals really stunk.

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.
5/6Tue
3 stops
36h 56mBOS-KIX
$603
3/17Mon
3 stops
37h 40mBOS-KIX
$651
3/31Mon
1 stopKorean Air
19h 00mBOS-KIX
$670
3/17Mon
1 stopKorean Air
33h 45mBOS-KIX
$714
5/6Tue
2 stopsAir Canada
32h 25mBOS-KIX
$723
1/27Mon
2 stopsAir Canada
25h 40mBOS-KIX
$746
3/16Sun
1 stopCathay Pacific
24h 45mBOS-KIX
$836
1/26Sun
1 stopCathay Pacific
24h 45mBOS-KIX
$848
1/27Mon
1 stopUnited Airlines
42h 35mBOS-KIX
$858
1/2Thu
3 stopsUnited Airlines
41h 05mBOS-KIX
$1,911

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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.
12/5Thu
multi-stopCathay Pacific
40h 15mBOS-KIX
12/7Sat
multi-stopCathay Pacific
41h 55mKIX-BOS
$1,430
12/5Thu
multi-stopCathay Pacific
38h 05mBOS-KIX
12/7Sat
multi-stopCathay Pacific
41h 55mKIX-BOS
$1,469
12/5Thu
multi-stopKorean Air
20h 00mBOS-KIX
12/7Sat
multi-stopKorean Air
28h 30mKIX-BOS
$1,805
12/4Wed
multi-stopCathay Pacific
24h 25mBOS-KIX
12/7Sat
multi-stopCathay Pacific
26h 35mKIX-BOS
$1,867
12/7Sat
multi-stopCathay Pacific
22h 15mBOS-KIX
12/9Mon
multi-stopCathay Pacific
41h 55mKIX-BOS
$1,884
12/4Wed
multi-stopCathay Pacific
24h 25mBOS-KIX
12/7Sat
multi-stopCathay Pacific
43h 55mKIX-BOS
$1,897
12/5Thu
multi-stop
25h 25mBOS-KIX
12/7Sat
multi-stop
40h 12mKIX-BOS
$1,911
12/4Wed
multi-stop
24h 25mBOS-KIX
12/7Sat
multi-stop
40h 12mKIX-BOS
$2,107
12/3Tue
multi-stopANA
20h 40mBOS-KIX
12/4Wed
multi-stopANA
29h 40mKIX-BOS
$3,088
12/3Tue
multi-stopANA
22h 30mBOS-KIX
12/4Wed
multi-stopANA
29h 40mKIX-BOS
$3,818

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Everything you need to know for your flight from Boston to Kansai Intl

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