BOS - KIX

$511 Find Cheap Flights from Boston to Osaka Kansai Intl - Compare and Save

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Everything you should know

Cheapest round-trip
$871
Typical prices: $1,132-$1,554
Air Canada
Wed 2/14Fri 2/23
BOS - KIX • 2 stops
Cheapest one-way
$501
Typical prices: $607-$950
Air Canada
Tue 2/13
BOS - KIX • 2 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
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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)
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Insights
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We hope you love your trip to Osaka Kansai Intl Airport!

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

 

Cheap flights from Boston to Kansai Intl with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Sun, Feb 14 - Tue, Feb 23
Multiple Airlines Logo
6:35 pm - 5:40 pmBOS  Boston Logan Intl-KIX Osaka Kansai Intl
57h 05m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl
Multiple Airlines Logo
11:10 am - 9:28 pmKIX  Osaka Kansai Intl-BOS Boston Logan Intl
24h 18m2 stops Tokyo Haneda Montreal Pierre Elliott Trudeau Intl
$871Multiple Airlines
Mon, Jan 18 - Wed, Jan 27
Japan Airlines Logo
12:00 pm - 8:25 pmBOS  Boston Logan Intl-KIX Osaka Kansai Intl
18h 25m1 stop Tokyo Narita
Japan Airlines Logo
7:25 am - 5:35 pmKIX  Osaka Kansai Intl-BOS Boston Logan Intl
24h 10m1 stop Tokyo Narita
$880Japan Airlines
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 - 10:12 amKIX  Osaka Kansai Intl-BOS Boston Logan Intl
40h 47m2 stops Tokyo Narita Toronto Pearson Intl
$880Multiple Airlines
Thu, Feb 11 - Tue, Feb 16
ANA Logo
6:00 am - 9:50 pmBOS  Boston Logan Intl-KIX Osaka Kansai Intl
25h 50m2 stops Washington, D.C. Dulles Intl Tokyo Haneda
ANA Logo
3:20 pm - 9:25 pmKIX  Osaka Kansai Intl-BOS Boston Logan Intl
20h 05m2 stops Tokyo Haneda Chicago O'Hare Intl
$899ANA
Thu, Feb 11 - Tue, Feb 16
ANA Logo
6:00 am - 2:40 pmBOS  Boston Logan Intl-KIX Osaka Kansai Intl
42h 40m2 stops Chicago O'Hare Intl Tokyo Haneda
ANA Logo
6:35 pm - 11:39 pmKIX  Osaka Kansai Intl-BOS Boston Logan Intl
19h 04m1 stop San Francisco
$900ANA
Sun, Jan 17 - Tue, Jan 26
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
3:20 pm - 9:53 pmKIX  Osaka Kansai Intl-BOS Boston Logan Intl
20h 33m2 stops Tokyo Haneda Chicago O'Hare Intl
$902ANA
Tue, Jan 5 - Thu, Jan 21
United Airlines Logo
8:00 pm - 4:45 pmBOS  Boston Logan Intl-KIX Osaka Kansai Intl
30h 45m2 stops Newark San Francisco
United Airlines Logo
3:20 pm - 11:59 pmKIX  Osaka Kansai Intl-BOS Boston Logan Intl
22h 39m3 stops Tokyo Haneda San Francisco Washington, D.C. Dulles Intl
$908United Airlines
Mon, Jan 18 - Wed, Jan 27
United Airlines Logo
6:39 pm - 4:45 pmBOS  Boston Logan Intl-KIX Osaka Kansai Intl
32h 06m2 stops Newark San Francisco
United Airlines Logo
3:20 pm - 11:59 pmKIX  Osaka Kansai Intl-BOS Boston Logan Intl
22h 39m3 stops Tokyo Haneda San Francisco Washington, D.C. Dulles Intl
$908United Airlines
Tue, Nov 17 - Mon, Nov 30
Cathay Pacific Logo
12:30 am - 6:20 amBOS  Boston Logan Intl-KIX Osaka Kansai Intl
39h 50m1 stop Hong Kong Intl
Cathay Pacific Logo
6:05 pm - 10:00 pmKIX  Osaka Kansai Intl-BOS Boston Logan Intl
41h 55m1 stop Hong Kong Intl
$1,392Cathay Pacific
Sun, Apr 4 - Wed, Apr 28
Cathay Pacific Logo
1:45 am - 9:15 pmBOS  Boston Logan Intl-KIX Osaka Kansai Intl
30h 30m1 stop Hong Kong Intl
Cathay Pacific Logo
9:45 am - 11:05 pmKIX  Osaka Kansai Intl-BOS Boston Logan Intl
26h 20m1 stop Hong Kong Intl
$1,392Cathay Pacific

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.

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

$501
Beat the crowds with an average 46% drop in travelers.
The most popular month to fly with an average 49% 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 in line with typical prices for this route. Average one-way fares are about $780.

  • 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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