BOS - OSA

$469 Find Cheap Flights from Boston to Osaka

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 Osaka departing on 2/9. 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
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Osaka

 
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.
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Everything you should know

Cheapest round-trip
$873
Overall average: $998
United Airlines
sam. 2/14ven. 2/27
BOS - KIX • 2 stops
Cheapest one-way
$469
Multiple Airlines
lun. 2/9
BOS - KIX • 3 stops
Top airlines
United Airlines
Cheapest • from $873 (round-trip)
ANA
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
September
Cheapest • 23% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boston to Osaka (BOS-OSA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Osaka 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Osaka

sam., févr. 14 - ven., févr. 27
United Airlines Logo
7:19 pm - 4:40 pm
BOS
-
KIX
31h 21m
2 stops
United Airlines Logo
6:35 pm - 9:47 pm
KIX
-
BOS
17h 12m
1 stop
$873United Airlines
jeu., févr. 19 - jeu., févr. 26
United Airlines Logo
6:00 am - 4:40 pm
BOS
-
KIX
20h 40m
1 stop
United Airlines Logo
6:35 pm - 11:57 pm
KIX
-
BOS
19h 22m
2 stops
$980United Airlines
mer., avr. 15 - mar., avr. 28
Multiple Airlines Logo
6:40 pm - 12:45 pm
BOS
-
KIX
29h 05m
2 stops
Multiple Airlines Logo
12:10 pm - 9:56 am
KIX
-
BOS
34h 46m
3 stops
$987Multiple Airlines
mer., avr. 15 - mar., avr. 28
Multiple Airlines Logo
6:40 pm - 12:45 pm
BOS
-
KIX
29h 05m
2 stops
Multiple Airlines Logo
9:10 am - 10:38 pm
KIX
-
BOS
26h 28m
2 stops
$988Multiple Airlines
jeu., févr. 19 - mer., févr. 25
ANA Logo
6:00 am - 4:40 pm
BOS
-
KIX
20h 40m
1 stop
ANA Logo
9:10 pm - 7:08 pm
KIX
-
BOS
35h 58m
2 stops
$998ANA
jeu., févr. 19 - jeu., févr. 26
ANA Logo
5:35 am - 7:25 pm
BOS
-
KIX
23h 50m
2 stops
ANA Logo
6:45 am - 7:56 pm
KIX
-
BOS
27h 11m
2 stops
$1,004ANA
jeu., févr. 19 - mer., févr. 25
ANA Logo
9:45 am - 10:15 am
BOS
-
KIX
34h 30m
2 stops
ANA Logo
9:10 pm - 7:08 pm
KIX
-
BOS
35h 58m
2 stops
$1,005ANA
dim., mai 3 - dim., mai 10
Cathay Pacific Logo
1:45 am - 6:05 pm
BOS
-
KIX
27h 20m
1 stop
Cathay Pacific Logo
5:35 pm - 11:05 pm
KIX
-
BOS
42h 30m
1 stop
$1,026Cathay Pacific
mer., avr. 15 - mar., avr. 28
Air Canada Logo
6:15 am - 6:10 pm
BOS
-
ITM
22h 55m
2 stops
Air Canada Logo
3:00 pm - 10:38 pm
ITM
-
BOS
20h 38m
2 stops
$1,086Air Canada
mer., mai 20 - mer., juin 10
Air Canada Logo
6:50 pm - 6:55 pm
BOS
-
ITM
35h 05m
2 stops
Air Canada Logo
2:00 pm - 9:45 am
ITM
-
BOS
32h 45m
2 stops
$1,132Air Canada
Booking Insights

KAYAK's insights & trends for Boston to Osaka flights

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

How much is a round-trip flight from Boston to Osaka?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Boston to Osaka departing in February.

What is the cheapest month to fly from Boston to Osaka?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Osaka, 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 is September, where tickets cost $938 (return) on average. On the other hand, the most expensive months are June and April, where the average cost of round-trip tickets is $1,433 and $1,356 respectively.

Good to know

Low seasonJanuary
Cheapest flight$469
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from Boston to Osaka Kansai Intl

When to book flights from Boston to Osaka

Are your dates flexible? Find out the best times to travel from Boston to Osaka 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 flights from Boston to Osaka

  • What seat selection options are available on Cathay Pacific flights from Boston to Osaka?

    Cathay Pacific offers several seat selection options to passengers. Passengers can choose a standard seat for free during the booking process or at check-in or preferred seats, which offer more legroom or are located in a more convenient location on the aircraft. Preferred seats are subject to an additional fee and can be selected during the booking process or at check-in.

  • What is the luggage allowance on Japan Airlines flights from Boston to Osaka?

    For Economy class, passengers are typically allowed one checked bag with a maximum weight of 50 lbs on Japan Airlines flights from Boston to Osaka. Business class passengers are usually allowed two checked bags, each weighing a maximum of 70 lbs. First class passengers generally enjoy the same allowance as Business class.

  • What services does ANA offer economy passengers on flights from Boston to Osaka?

    ANA offers personal seat back entertainment systems for economy class with a vast selection of movies, TV shows, music, and games. The airline provides complimentary meals, with a choice of Western or Japanese-style cuisine. ANA also offers Wi-Fi and in-flight connectivity, allowing passengers to stay connected and access the internet during the flight.

  • How do I get from Kansai Airport (KIX) to the city center?

    The train is the most convenient and budget-friendly way to reach the city center from KIX. You can take the JR Limited Express Haruka train, which takes about 45–50 minutes to reach Osaka station. There are a number of bus services that operate between Kansai Airport and the city center. The most popular option is the airport limousine service, which takes about 50–60 minutes to reach Osaka's major hotels.

  • What is the cheapest flight from Boston to Osaka?

    In the last 3 days, the lowest price for a flight from Boston to Osaka was $469 for a one-way ticket and $873 for a round-trip.

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

    Yes, you’ll need a passport to travel to Osaka from Boston.

  • Which airports will I be using when flying from Boston to Osaka?

    When flying out of Boston you will be using Boston Logan Intl. You will be landing at one of these airports: Osaka Itami or Osaka Kansai Intl.

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

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

  • Which airline alliances offer flights from Boston to Osaka?

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

  • Which is the best airline for flights from Boston to Osaka, ANA or Japan Airlines?

    The two airlines most popular with KAYAK users for flights from Boston to Osaka are ANA and Japan Airlines. With an average price for the route of $1,180 and an overall rating of 8.4, ANA is the most popular choice. Japan Airlines is also a great choice for the route, with an average price of $1,669 and an overall rating of 8.3.

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

    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.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Osaka 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?

    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 with an airline and back to Boston with another airline.

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

    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 from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Boston to Osaka

  • US citizens will need a visa to travel from Boston (BOS) to Osaka (OSA). The type of visa required depends on the purpose of the visit, the duration of stay, and other factors. To apply for a Japanese visa, US citizens must submit the required documents such as a valid passport, visa application form, photos, and other supporting documents depending on the type of visa applied for.
  • Air Canada allows cats and dogs to travel on flights from Boston to Osaka. There is a fee for traveling with pets, which varies depending on the type and size. You must also provide all necessary documentation for your pet, such as a health certificate, vaccinations, and any other required permits.
  • Flights from Boston to Osaka usually have layovers in various cities depending on the airline. Some common layovers for these flights include Tokyo (NRT), San Francisco (SFO), New York (JFK), Hong Kong (HKG), Vancouver (YVR), Washington (IAD), and Chicago (ORD).
  • United Airlines has a customer care program called “Special Needs” that is designed to meet the needs of passengers who require assistance or mobility aids. The airline provides wheelchairs and other mobility aids at the airport and onboard the aircraft to passengers who require them, including for flights from Boston to Osaka.
  • American Airlines offers flights from Boston to Osaka and has invested in fuel-efficient aircraft to reduce the environmental impact of their flights. The company has implemented operational measures, such as using more efficient flight paths, optimizing ground operations, and reducing weight on flights.

Reviews of the top 5 airlines serving from Boston to Osaka

 
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 Osaka? 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 1078 reviews
8.7Crew
8.5Boarding
7.9Entertainment
8.2Comfort
7.7Food
Airline reviews

Cabin Crew was excellent. They took care of everything requested. Flight was good

10.0 ExcellentAnonymous, Jan 2026
ORD - HND
Read more ANA reviews

Cabin Crew was excellent. They took care of everything requested. Flight was good

I didn’t know that my connecting flight from Japan to Hawaii was at a different airport - arrived in Haneda (ticket said Tokyo but didn’t notice the airport name) and had to get my bags and go out of immigration and back in to go to Narita airport 2 hours away. Such a hassle and SOOO confusing and complicated. Check your airports IN ADVANCE and NEVER book if you have to change airports. 40+ years of flying and first time had this. Never again. ANA is great but booking agencies will sell you a connection that you have a good chance of missing - even under the best circumstances.

I was charged $200 for a 2nd checked bag, which is unreasonably high and feels like price gouging. Other than that the experience was excellent.

The ROOM was great. We would love to have it on all of our flights. LOL

I would prefer to fly with Japanese airlines over American ones. They have better food and service overall

I was too late to get onto this flight. Kayak shouldn't let you book a connecting international to domestic flight when flying ANA. Your domestic flight could be in a different terminal and you won't make it because you have to go through immigration and customs.

United Airlines crew members do not know how to deal with emergency situation that caused our flight delay. For example, they should have asked the maintenance or seat belt repair personnel to come and fix the seat belt while they were looking for a volunteer to book another flight.

I always take ANA because of the great service and overall experience.

Tokyo Haneda to transport was so bad too short time . and find out way to the gate was so bad. I almost missed flight. because confused. They need more great way tell us how to get there details

Entertainment and food is best. I love to use ana for a lots japanese movies…. Food was best

The flights were on time and the cabin crew were very nice. The only downside was that the food was not good.

Good pilot and crew. No food or beverage on this flight Entertainment is via own device thru plane's wifi.

My plans changed and I tried to cancel or change the flight for credit but was giving the run around and denied . Not great

Excellent service, excellent food and beverage options, plenty of leg room

Checking in as an international flyer is a bit tedious

I was so hungry , from Boston to Tokyo, only 2 big food .

It was okay, short flight so nothing much to comment.

The crew was nice, the food could be better, and at least 2 bathroom stalls were out of service.

The crew was attentive and provided everything I needed. The food in business class was excellent.

Good experience for economy transpacific. Reasonable comfortable seats. Food was not as good as I expected or had on other prior transpacific flights but likely attribute that to rising cost of supplies. Staff is courteous. Overall, very good.

I didn't have much experience with Cathay Pacific airlines because of delay and missed connections, the bulk of the trip was on Japan Airlines.

Flight delayed first from bad weather, then after boarding there was a problem with the plane. We had to get off and onto another plane...connections were missed and the trip took an additional 10 hours!! Pre-paid seatting was not honored due ro last minute carrier changes. Most of the trip was on Japan Airline.

Extensive delays, poor organization to board people, as it felt like chaos to get inside of the plane. No lines, everyone gathering together like a mayhem, very confusing. Passengers out of hand and rude, which is not the airlines fault. However, there should be rules, e.g., not letting one passenger take 2+ spots in the overhead bin.

Crew and food were great in-flight. We had a 2 hour delay, no communication, and just got left in a limbo. The crew arrived late and they were running checkouts on the plane (which is important, but why not doing it earlier?) Cathay did nothing to about the delay, and a lot of people missed their connection flights. I had to run and got stuck at checkpoint, which made my entire trip very unpleasant. Got to my gate 5 mins prior to them closing it.

My flight was suppose to be at 7:45pm to fly but it didnt fly out until 8:55 to dallas so then all of my other flights was late and delay ihad to wait at the airport for extra 14 hours to be able to get on a different plane

There were delays at boarding and landing. These events resulted in a tight transfer time in HK. Poor signage for transfers. Finally, lost luggage at final destination.

It was good. The planes needed to be updated though, they were dated and the entertainment systems were old. Service was amazing. The pre-booked meals were lacklustre.

Super delayed. Unnecessary. Need more competent people doing logistics to keep things moving on time. Totally unacceptable.

Flew from lax economy on cathay 777. Seat configuration 3-4-3. When the forward seat reclines it feels like someone is leaning forward and staring you. If you are slightly big tray tables will touch your abdomen even with seats upright. AVOID this above 777 configuration at all cost for a long flight. However their Airbus 350 3-3-3 configuration felt spacious and Seats wider.

Not much of anything could have been done better unless I had a first class ticket. I was literally 15 hours with an airline in the economy class. Very professional friendly and attentive crew. Good airline food, clean cabin, seating area and bathrooms. I've been 4 times back-and-forth with Cathay Pacific, and I would not choose another airline for this trip. Five out of five stars.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

A great experience with excellent service by the crew and attention in assisting the passengers.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

The food was terrible this time. Otherwise pleasant, quiet, on-time.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

everything was fine. but paying for 1 piece of check-in luggage and denying passengers to board with carry-on luggage which by air line's standards does not fit is not acceptable. when one travels for a longer time one needs to have some essentials

This flight with a lot empty place , and I have more room, feeling comfortable.

Snacks were just placed and many people were hungry and unaware they were available. Ran out of water bottles. Attendants not available. Missed entire meal.

The cabin crew was professional and there were plenty of movie choices, but the food was a bit sub-standard.

Pearson Airport could not properly handle all the passengers who they needed to process in order to properly get them on board. As a result, I missed the departure of my flight from Toronto. The only saving grace is that Air Canada found a flight that only delayed me by one hour. However, this was no thanks to Pearson Airport!

The flight was delayed an hour, but not because of Air Canada. The crew was polite, professional, and competent. The food was above average for Air Canada, but just fine. The stand out for me in the 10 hour flight was the entertainment package. The best of any airline I’ve experienced so far. Looking forward to my return flight to finish some more of the shows I was watching.

Very good!👍!especially the typhoon coming, the speaking Chinese language service is excellent 👍!

Not to out myself as both a child at heart and kind of a terrible person, but the Pokémon safety video was the first time I watched an airplane safety video in like a decade. It was ADORABLE!! A great way to encourage attention from young and old alike.

I had a good experience. I liked being informed about the status of my luggage

Seamless! Long but the seat back entertainment kept us all busy the whole time! Meals were excellent! Crew fantastic! Very attentive!

Everything you need to know for your flight from Boston to Osaka

Information on your arrival and departure airports