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BOS - KIX

$534 Find Cheap Flights from Boston to Osaka Kansai Intl - Compare and Save

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Everything you should know

Cheapest round-trip
$905
Typical prices: $1,132-$1,554
Air Canada
Thu 2/15Sun 4/15
BOS - KIX • 2 stops
Cheapest one-way
$534
Typical prices: $607-$950
Multiple Airlines
Fri 11/9
BOS - KIX • 3 stops
Nonstop flights
Not available
There are currently no direct flights between Boston and Osaka Kansai Intl Airport. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
18 weeks
in advance
Our data shows that travelers who book at least 18 weeks in advance save around 51% compared to booking last minute.
Insights
Insights
When to travel
February
Cheapest • 19% price drop
April
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Beijing Capital (PEK)
Cheapest • Avg $920 (round-trip)
Tokyo Narita (NRT)
Shortest trip • 17h 42m (one-way)
Insights
Insights
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We hope you love your trip to Osaka Kansai Intl Airport!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boston to Kansai Intl (BOS-KIX)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Kansai Intl

Sun, Jan 17 - Fri, Jan 29
Multiple Airlines Logo
5:30 am - 8:25 pmBOS  Boston Logan Intl-KIX Osaka Kansai Intl
24h 55m2 stops Montreal Pierre Elliott Trudeau Intl Tokyo Narita
Multiple Airlines Logo
7:25 am - 2:18 pmKIX  Osaka Kansai Intl-BOS Boston Logan Intl
44h 53m2 stops Tokyo Narita Toronto Pearson Intl
$880Multiple Airlines
Mon, Feb 15 - Thu, Apr 15
Air Canada Logo
6:35 pm - 5:40 pmBOS  Boston Logan Intl-KIX Osaka Kansai Intl
33h 05m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl
Air Canada Logo
6:00 pm - 10:14 amKIX  Osaka Kansai Intl-BOS Boston Logan Intl
29h 14m2 stops Vancouver Intl Toronto Pearson Intl
$905Air Canada
Sat, Feb 13 - Sat, Feb 20
Air Canada Logo
6:35 pm - 5:40 pmBOS  Boston Logan Intl-KIX Osaka Kansai Intl
33h 05m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl
Air Canada Logo
7:25 pm - 9:48 amKIX  Osaka Kansai Intl-BOS Boston Logan Intl
28h 23m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl
$936Air Canada
Thu, Jan 14 - Sun, Jan 24
ANA Logo
6:00 am - 7:30 pmBOS  Boston Logan Intl-KIX Osaka Kansai Intl
23h 30m2 stops Chicago O'Hare Intl Tokyo Narita
ANA Logo
9:45 am - 7:08 pmKIX  Osaka Kansai Intl-BOS Boston Logan Intl
23h 23m2 stops Tokyo Haneda Washington, D.C. Dulles Intl
$979ANA
Tue, Jan 19 - Mon, Jan 25
ANA Logo
6:00 am - 9:50 pmBOS  Boston Logan Intl-KIX Osaka Kansai Intl
25h 50m2 stops Chicago O'Hare Intl Tokyo Haneda
ANA Logo
3:20 pm - 9:29 pmKIX  Osaka Kansai Intl-BOS Boston Logan Intl
20h 09m2 stops Tokyo Haneda San Francisco
$980ANA
Mon, Jan 18 - Sun, Jan 24
United Airlines Logo
7:15 pm - 4:45 pmBOS  Boston Logan Intl-KIX Osaka Kansai Intl
31h 30m2 stops Washington, D.C. Dulles Intl San Francisco
United Airlines Logo
6:35 pm - 8:01 amKIX  Osaka Kansai Intl-BOS Boston Logan Intl
27h 26m1 stop San Francisco
$984United Airlines
Mon, Jan 18 - Mon, Jan 25
United Airlines Logo
7:15 pm - 4:45 pmBOS  Boston Logan Intl-KIX Osaka Kansai Intl
31h 30m2 stops Washington, D.C. Dulles Intl San Francisco
United Airlines Logo
6:35 pm - 8:01 amKIX  Osaka Kansai Intl-BOS Boston Logan Intl
27h 26m1 stop San Francisco
$984United Airlines
Sun, Oct 18 - Fri, Oct 23
ANA Logo
7:45 am - 2:50 pmBOS  Boston Logan Intl-KIX Osaka Kansai Intl
42h 05m1 stop San Francisco
ANA Logo
4:55 pm - 10:57 pmKIX  Osaka Kansai Intl-BOS Boston Logan Intl
19h 02m1 stop San Francisco
$1,028ANA
Sun, Feb 14 - Thu, Apr 15
Cathay Pacific Logo
12:30 am - 5:40 pmBOS  Boston Logan Intl-KIX Osaka Kansai Intl
27h 10m1 stop Hong Kong Intl
Cathay Pacific Logo
9:05 am - 11:05 pmKIX  Osaka Kansai Intl-BOS Boston Logan Intl
27h 00m1 stop Hong Kong Intl
$1,368Cathay Pacific
Mon, Nov 16 - Tue, Dec 1
Cathay Pacific Logo
12:30 am - 5:40 pmBOS  Boston Logan Intl-KIX Osaka Kansai Intl
27h 10m1 stop Hong Kong Intl
Cathay Pacific Logo
5:00 pm - 10:00 pmKIX  Osaka Kansai Intl-BOS Boston Logan Intl
43h 00m1 stop Hong Kong Intl
$1,379Cathay Pacific
Booking Insights

Price, demand and travel trends for Boston to Osaka Kansai Intl Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

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

Round-trip flights from Boston to Osaka Kansai Intl Airport typically range from $1,132 to $1,554. The lowest price found in the past 5 days was $905, on Air Canada.

What's the cheapest day of the week to fly from Boston to Osaka Kansai Intl Airport?

Based on deals KAYAK users found in the last 12 months, Sunday is the cheapest day of the week to fly from Boston to Osaka Kansai Intl Airport. It’s 14% cheaper than the average day, while Saturday is the most expensive, with prices 8% higher.

What’s the cheapest month to fly from Boston to Osaka Kansai Intl Airport?

•February is the cheapest month to fly from Boston to Osaka Kansai Intl Airport at $1,063 round-trip.
•October ($1,559) and July ($1,478) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 46% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Boston to Osaka Kansai Intl Airport the cheapest?

Flights from Boston to Osaka Kansai Intl Airport are cheapest 18 weeks before departure. Booking in this window typically costs about 51% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Boston to Osaka Kansai Intl Airport flights

Low season

November

Cheapest flight

$534
Beat the crowds with an average 44% drop in travelers.
The most popular month to fly with an average 57% increase in travelers.
One-way flight from Boston to Osaka Kansai Intl Airport

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

Your Boston to Osaka Kansai Intl Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Boston to Osaka Kansai Intl Airport?

    Three cabin classes are available on flights from Boston to Osaka Kansai Intl Airport:

    • Economy Class
    • Premium Economy Class
    • Business Class

  • How long is a flight from Boston to Osaka Kansai Intl Airport?

    A nonstop flight from Boston to Osaka Kansai Intl Airport takes 00m, covering 6,872 miles.

  • Do I need a passport to fly from Boston to Osaka Kansai Intl Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Boston to Osaka Kansai Intl Airport flight?

    Round-trip flights from Boston to Osaka Kansai Intl Airport range from $1,132 to $1,554, with an average of $1,309 over the past 12 months. Anything below $1,132 counts as a good deal.

  • How expensive are last-minute Boston to Osaka Kansai Intl Airport flights?

    Last-minute fares on this route (booked within two weeks of departure) run 55% above the $1,309 route average. Book 18 weeks before departure for the lowest fares.

  • How are flight prices from Boston to Osaka Kansai Intl Airport looking right now?

    One-way fares from Boston to Osaka Kansai Intl Airport are currently higher than usual. Average one-way flight prices are about $823, which is 9% above the typical average for this route.

  • What car rental options are available at Osaka Kansai Intl Airport (KIX)?

    Osaka Kansai Intl Airport (KIX) hosts 5 major car rental companies, with daily rates starting from around $10 for economy cars. Top options include:

    • Yesaway
    • IX Rental
    • HM Rent a Car
    • CG Car Rental
    • KuMa Rental Car

  • Which airports can I use when flying from Boston to Osaka Kansai Intl Airport?

    Flights from Boston to Osaka Kansai Intl Airport usually depart from Boston Logan Intl (BOS) and arrive at Osaka Kansai Intl (KIX).

  • Which airports do connecting flights from Boston to Osaka Kansai Intl Airport pass through?

    One-stop flights from Boston to Osaka Kansai Intl Airport most commonly connect through:

    • Hong Kong Intl (HKG) - 48% of one-stop connections
    • San Francisco (SFO) - 33% of one-stop connections
    • Toronto Pearson Intl (YYZ) - 9% of one-stop connections
    • Incheon Intl (ICN) - 6% of one-stop connections

  • Can I save money by using flexible dates for flights from Boston to Osaka Kansai Intl Airport?

    Yes. Flexible dates can save you up to 21% on flights from Boston to Osaka Kansai Intl Airport. Sunday is the cheapest departure day at $1,127 round-trip on average, while Saturday is the most expensive at $1,415, a difference of $288.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • How much time can I save by choosing a different layover airport from Boston to Osaka Kansai Intl Airport?

    Flying via Tokyo Narita (NRT) gives the shortest average 1-stop total travel time at 17h 42m, compared with 19h 40m via San Francisco (SFO) and 19h 52m via Toronto Pearson Intl (YYZ).

  • What is the time difference between Boston and Osaka Kansai Intl Airport?

    Osaka Kansai Intl Airport is 13 hours ahead of Boston (Japan Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Osaka Kansai Intl Airport?

    Some of the most popular sights in Osaka Kansai Intl Airport are Universal Studios Japan and Dotonbori Glico Man Sign. These are among the most viewed places in Osaka Kansai Intl Airport on KAYAK.

Your guide to booking Boston to Osaka Kansai Intl Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Sunday departure and avoid flying on Saturday. On this route, Sunday flights average $1,127, about $288 less than Saturday fares (20% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 18 weeks before you fly. On this route, that window historically saves about 51% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Boston to Osaka Kansai Intl Airport trip for February. Fares historically average $1,063 round-trip in that month - typically $496 less than the most expensive month, which is October (based on the last 12 months).

More options for your flight from Boston to Kansai Intl

Complete your trip to Osaka with a hotel stay or car rental

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