£344 Cheap Flights from Boston (BOS) to Osaka (KIX)

View £344 flight on Mon, 27 Oct 2025Opens in a new window

Popular airlines from Logan International Airport (BOS) to Kansai Intl. Airport (KIX)

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Cheap Flights from Boston (BOS) to Osaka (KIX)

Prices were available within the past 7 days and start at £344 for one-way flights and £585 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Tue, 28 Oct - Thu, 6 Nov
BOS
Boston
KIX
Osaka
£585 Return, found 17 hours ago
£585
Return
found 17 hours ago
Select Air Canada flight, departing Tue, 28 Oct from Boston to Osaka, returning Thu, 6 Nov, priced at £585 found 17 hours ago
Air Canada
Tue, 28 Oct - Thu, 6 Nov
BOS
Boston
KIX
Osaka
£590 Return, found 17 hours ago
£590
Return
found 17 hours ago
Select Air Canada flight, departing Tue, 28 Oct from Boston to Osaka, returning Thu, 6 Nov, priced at £590 found 17 hours ago
Cathay Pacific
Mon, 27 Oct - Mon, 3 Nov
BOS
Boston
KIX
Osaka
£653 Return, found 2 days ago
£653
Return
found 2 days ago
Select Cathay Pacific flight, departing Mon, 27 Oct from Boston to Osaka, returning Mon, 3 Nov, priced at £653 found 2 days ago
Cathay Pacific
Tue, 28 Oct - Thu, 6 Nov
BOS
Boston
KIX
Osaka
£654 Return, found 17 hours ago
£654
Return
found 17 hours ago
Select Cathay Pacific flight, departing Tue, 28 Oct from Boston to Osaka, returning Thu, 6 Nov, priced at £654 found 17 hours ago
Cathay Pacific
Mon, 27 Oct - Mon, 3 Nov
BOS
Boston
KIX
Osaka
£665 Return, found 2 days ago
£665
Return
found 2 days ago
Select Cathay Pacific flight, departing Mon, 27 Oct from Boston to Osaka, returning Mon, 3 Nov, priced at £665 found 2 days ago
Cathay Pacific
Tue, 28 Oct - Thu, 6 Nov
BOS
Boston
KIX
Osaka
£666 Return, found 17 hours ago
£666
Return
found 17 hours ago
Select Cathay Pacific flight, departing Tue, 28 Oct from Boston to Osaka, returning Thu, 6 Nov, priced at £666 found 17 hours ago
Cathay Pacific
Mon, 27 Oct - Mon, 3 Nov
BOS
Boston
KIX
Osaka
£677 Return, found 2 days ago
£677
Return
found 2 days ago
Select Cathay Pacific flight, departing Mon, 27 Oct from Boston to Osaka, returning Mon, 3 Nov, priced at £677 found 2 days ago
Korean Air
Tue, 28 Oct - Thu, 6 Nov
BOS
Boston
KIX
Osaka
£835 Return, found 17 hours ago
£835
Return
found 17 hours ago
Select Korean Air flight, departing Tue, 28 Oct from Boston to Osaka, returning Thu, 6 Nov, priced at £835 found 17 hours ago
All Nippon Airways
Tue, 23 Sep - Tue, 21 Oct
BOS
Boston
KIX
Osaka
£842 Return, found 3 days ago
£842
Return
found 3 days ago
Select All Nippon Airways flight, departing Tue, 23 Sep from Boston to Osaka, returning Tue, 21 Oct, priced at £842 found 3 days ago
Alaska Airlines
Mon, 27 Oct - Mon, 3 Nov
BOS
Boston
KIX
Osaka
£872 Return, found 2 days ago
£872
Return
found 2 days ago
Select Alaska Airlines flight, departing Mon, 27 Oct from Boston to Osaka, returning Mon, 3 Nov, priced at £872 found 2 days ago

Find the cheapest month to fly from Boston (BOS) to Osaka (KIX)

September is typically the cheapest month to fly

From £587 - £1,000 per traveller.

Graph displaying average flight prices per month

Flight from Boston to Osaka route information
Origin airport
Logan Intl.
Destination airport
Kansai Intl.
Airlines serving
Air Canada, Air France, All Nippon Airways, Cathay Pacific, Emirates, Etihad Airways, KLM, Korean Air, Turkish Airlines
Return price
£584
Distance
11001 km

Compare flights from Boston to Osaka easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Boston to Osaka. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Kansai Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Logan Intl. to Kansai Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Logan Intl. (BOS) to Kansai Intl. (KIX)

The easiest way to view the best deals on flights from Boston to Osaka today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Logan Intl. to Kansai Intl. start at just £585 and range up to £872.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Boston and Osaka
  • booking your flight during October, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Boston to Osaka flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Logan Intl. to Kansai Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Frequently asked questions

How much is a flight from Logan Intl. Airport (BOS) to Kansai Intl. Airport (KIX)?
The lowest price advertised for a round-trip flight from Logan Intl. Airport to Kansai Intl. Airport is £585. But you better act soon. This figure is taken from fares available within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Logan Intl. Airport to KIX?
Every air carrier has its own terms and conditions. If you do decide to cancel, follow the simple instructions on our Customer Service Portal.
How do I find cheap flights from Logan Intl. Airport (BOS) to Kansai Intl. Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for BOS to Kansai Intl. Airport (KIX) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Logan Intl. Airport (BOS) to KIX?
With around 11,100 kilometres separating Logan Intl. Airport (BOS) and Kansai Intl. Airport, your flight will be a long one. Pack wisely to make your journey comfortable. Little things like a sleep mask and a good travel pillow can make a massive difference.
Which airlines fly direct from Logan Intl. Airport to Kansai Intl. Airport (KIX)?
If you want to fly straight from Logan Intl. Airport (BOS) to KIX, you'll need to book a flight with at least one stop. Unfortunately, there aren't any airlines that fly directly between these airports.
Are BOS to Kansai Intl. Airport (KIX) flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Logan Intl. Airport to KIX at the last minute could save you some serious cash. However, it could end up costing a good deal more! If you'd prefer not to take any chances, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to 12 months in advance. If your preferred air carrier hasn't released tickets yet, check back often as deals are updated all the time on Expedia.

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