OSA - BOS

$526 Find Cheap Flights from Osaka to Boston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Osaka to Boston departing on 9/7. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Osaka to Boston, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Osaka to Boston, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Osaka to Boston (OSA-BOS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Osaka to Boston 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 Osaka to Boston

Tue, Jul 29 - Mon, Aug 4
Cathay Pacific Logo
6:35 pm - 11:00 pmKIX-BOS
41h 25m1 stop
Cathay Pacific Logo
1:40 am - 6:40 amBOS-KIX
40h 00m1 stop
$1,120Cathay Pacific
Find Deal
Tue, Jul 29 - Mon, Aug 4
Cathay Pacific Logo
6:35 pm - 11:00 pmKIX-BOS
41h 25m1 stop
Cathay Pacific Logo
1:40 am - 2:55 pmBOS-KIX
24h 15m2 stops
$1,152Cathay Pacific
Find Deal
Tue, Jul 29 - Tue, Aug 5
 Logo
2:30 pm - 11:28 amKIX-BOS
33h 58m3 stops
 Logo
6:40 pm - 4:25 pmBOS-KIX
32h 45m2 stops
$1,306
Find Deal
Tue, Jul 29 - Tue, Aug 5
 Logo
2:30 pm - 11:28 amKIX-BOS
33h 58m3 stops
 Logo
6:00 am - 4:25 pmBOS-KIX
21h 25m1 stop
$1,313
Find Deal
Sat, Aug 9 - Sat, Aug 23
Air Canada Logo
6:05 pm - 9:30 amKIX-BOS
28h 25m2 stops
Air Canada Logo
6:00 am - 4:25 pmBOS-KIX
21h 25m1 stop
$1,829Air Canada
Find Deal
Sat, Aug 9 - Sat, Aug 23
Air Canada Logo
6:05 pm - 9:30 amKIX-BOS
28h 25m2 stops
Air Canada Logo
6:00 am - 4:25 pmBOS-KIX
21h 25m1 stop
$1,832Air Canada
Find Deal
Tue, Jul 29 - Tue, Aug 5
United Airlines Logo
4:55 pm - 11:55 pmKIX-BOS
20h 00m2 stops
United Airlines Logo
7:04 pm - 2:50 pmBOS-KIX
30h 46m3 stops
$2,066United Airlines
Find Deal
Tue, Jul 29 - Tue, Aug 5
United Airlines Logo
12:00 pm - 6:56 pmITM-BOS
19h 56m2 stops
United Airlines Logo
7:00 am - 5:05 pmBOS-ITM
21h 05m2 stops
$2,072United Airlines
Find Deal
Tue, Jul 29 - Tue, Aug 5
Japan Airlines Logo
2:35 pm - 6:10 pmITM-BOS
16h 35m1 stop
Japan Airlines Logo
1:35 pm - 7:50 pmBOS-ITM
17h 15m1 stop
$2,127Japan Airlines
Find Deal
Wed, Jul 30 - Wed, Aug 6
Japan Airlines Logo
2:35 pm - 6:10 pmITM-BOS
16h 35m1 stop
Japan Airlines Logo
1:35 pm - 7:50 pmBOS-ITM
17h 15m1 stop
$2,407Japan Airlines
Find Deal
Useful Info

KAYAK's insights & trends for Osaka to Boston flights

Get data-powered insights and trends into flights from Osaka to Boston 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 Osaka to Boston?

The average price of all round-trip flights from Osaka to Boston clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Boston on a Thursday and more expensive on a Friday. On your return trip to Osaka, you should consider flying back on a Wednesday, and avoid Fridays for better deals.

Good to know

Low seasonOctober
High seasonSeptember
Cheapest flight$526
Best time to beat the crowds with an average 37% drop in price.
Most popular time to fly and prices are also 26% lower on average.
Flight from Osaka Kansai Intl to Boston

When to book flights from Osaka to Boston

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

  • What is the cheapest flight from Osaka to Boston?

    In the last 3 days, the lowest price for a flight from Osaka to Boston was $526 for a one-way ticket and $1,120 for a round-trip.

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

    Yes

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

    On your way to Boston, you’ll fly out from one of these Osaka airports: Osaka Itami or Osaka Kansai Intl. You’ll be landing at Boston Logan Intl.

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

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

  • Which airline alliances offer flights from Osaka to Boston?

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

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

    The two airlines most popular with KAYAK users for flights from Osaka to Boston are Cathay Pacific and Air Canada. With an average price for the route of $1,226 and an overall rating of 7.5, Cathay Pacific is the most popular choice. Air Canada is also a great choice for the route, with an average price of $1,065 and an overall rating of 7.1.

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

    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 Osaka to Boston.

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

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

    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 Boston with an airline and back to Osaka with another airline.

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

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

Top airlines flying from Osaka to Boston

 
See real verified KAYAK customer reviews for airlines flying from Osaka to Boston. 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 Osaka to Boston? 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.
7.5
Cathay PacificOverall score based on 892 reviews
8.0Crew
7.6Comfort
7.9Boarding
7.8Entertainment
7.3Food
Airline reviews

The food and service was great. You have to pay a lot for in flight Internet though which is lame.

8.0 ExcellentAnonymous, May 2025HKG - JFK
Read more Cathay Pacific reviews

The food and service was great. You have to pay a lot for in flight Internet though which is lame.

I had high expectations but met with a below average experience. I hope the Airline will take a notice and improve.

Special request meals are really below average. Vegetarian options are very limited if you didn't prebook.

I've stomach problems after 2 hours of flight, Iris, the flight purser not only did her best to make me feel comfortable, she went above and beyond providing pain relievers medicines and ointment. She look and found a doctor passenger on the flight to provide advise. She even report on ground staffs about my condition and provide wheelchair upon arrival. Kudos to her and Cathay Pacific!

Everything was fine and I have no complaints or things to note.

The flight was delayed for 30 mins. The overall experience was good.

Horrible. No good food. Baggage missed to onboard and came after a day. No support to compensate the delay. Customer care cannot see the status of the complaint. No reply of the email.

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.

bad… no veg food was provided eventhough i pre ordered special meal

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

No space in overhead bin, one cookie, 2 oz of juice - is not customer service.

Good flight, friendly crew and overall - good service on United Airlines.

Received email saying that there won’t be a seat back entertainment screen and inflight WiFi would be available. But no WiFi both ways. Say it in the email.

Somebody either kayak or Air Canada booked my flight under my preferred name Betty instead of my legal name and I almost was denied boarding my flight

flight landed late almost 1.00hr and we 4 passengers missed our connected flight to indianapolis, we need to get the hotel and taxi for the next day flight to home in indianapolis, cost us $ 300 more

Or the greatest and it ended up picking us up from Chicago to Toronto not sure who was tesponsible for the 4 hr delay. United should have been properly prepared for a scheduled flight from Austin to Chicago and they were not.

Good, only discomfort was consistent turbulence through the 3 hour flight. Not sure if in companies control though.

I’m writing to share my deep frustration with a recent experience, which I feel reflects a troubling trend in the airline industry—one where customer care often takes a backseat to profit maximization. First, I do want to acknowledge a positive aspect: I appreciated that your team accommodated a seat change due to my medical needs without charging an additional fee. This gesture made a genuine difference during my trip, and I’m thankful for that. That said, the overall experience left me extremely disappointed. The ticket I purchased for myself and a companion turned out to be “basic”—a fare category I now understand to be non-refundable and non-transferable. Unfortunately, my travel companion was involved in a car accident and could not fly. Not only was I unable to receive any kind of reimbursement, but I also couldn't transfer the ticket to someone else, despite the flight being overbooked by three passengers. This inflexibility felt exploitative. To add to the frustration, I had to shoulder additional unexpected expenses: overpriced in-flight food and a costly baggage fee on my return trip. The entire process felt more like a profit-maximizing scheme than a customer service experience. I understand that airlines, like any business, need to remain financially viable. However, creating fare structures that penalize customers during emergencies, while simultaneously overbooking flights, comes across as deeply unfair. It’s hard to feel like a valued passenger in this environment. While I don’t expect much will come of this message, I do hope Air Canada takes this feedback seriously. There’s an opportunity to lead with integrity in an industry where choices for consumers are becoming more limited and experiences increasingly transactional.

From the kind young lady (w/Vancouver air security) who expedited our check-in to U.S. Customs to the Air Canada gate crew who gave us pre-boarding, the flight attendants who actually offered a strong hand to help me board once I had surrendered my rolling walker at the door, they are all reflections of the thoughtful, genuinely helpful Canadians we have grown to appreciate. Water and other beverages were offered throughout the flight to make sure we weren't dehydrated and the cookie was great. (Husband bought the fruit & crackers snack,) I was delighted to see three movies that I would not have otherwise seen and appreciate that AC left the last film viewable until its conclusion although the flight had actually landed. Last, mahalo to the kind strong gentleman who not offered his hand to help me debark the plane, but gave me an AC pin that I'll truly treasure.

The ground staff was so rude in Toronto airport ...very rude and did not answer simple questions, and made me look like a fool. Very rude ground staff.

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

Information on your arrival and departure airports

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