Cheap flights from Seattle (SEA) to Osaka (OSA)

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The best prices from Seattle/Tacoma Intl to Osaka are usually found in February or March, booked 39 days in advance, depart on a Tuesday or Monday and return on a Monday

How to find the cheapest flight from
Seattle (SEA) to Osaka (OSA)

All the information you need to plan the best SEA to OSA flight in 2022: compare Seattle to Osaka flight prices with the expected peak season, weather and rainfall in Osaka.
SEA - OSA
Price
$807 - $1,228
OSA
Temperature
42.8 - 84.2 °F
OSA
Precipitation
1.6 - 7.9 inches

Popular in

December

High demand for flights, 23% potential price rise

Cheapest in

February

Best time to find cheap flights, 14% potential price drop

Round-trip from

$807

From Seattle/Tacoma Intl to Osaka (OSA)

One-way from

$737

One-way flight from Seattle/Tacoma Intl to Osaka (OSA)

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest month to fly from Seattle to Osaka?

Flights from Seattle to Osaka lean towards being more expensive in December. Prices are generally better when you fly from Seattle to Osaka in February, with the cheapest ticket starting at $705.

When is the cheapest time to fly from Seattle to Osaka (SEA - OSA)?

Unlike in the morning, when flights are generally more expensive, you can save up to 20% on flights from Seattle to Osaka by exploring options for tickets at noon.

How far in advance should I book a flight from Seattle to Osaka?

Users have found that booking a flight from Seattle to Osaka at least 40 days early can save you up to 57% on average compared to booking a flight this week. If booking 40 days before your flight isn’t an option for you, users have found flights from Seattle to Osaka for as little as $1,218 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $1,525 for flights departing within the next 3 days.

What is the cheapest day to fly round-trip from Seattle to Osaka?

Users have found that leaving on a Monday can be a cost-effective option. It’s possible to save up to 15% on your flight compared to booking on days when demand is much higher.

Cheap flights from Seattle to Osaka in January, February 2022

The best prices found for SEA to OSA flights for January, February
17 Feb - 24 Feb
$839pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
KIX
Osaka Kansai Intl
KIX
Osaka Kansai Intl
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
16 Feb - 23 Feb
$852pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
KIX
Osaka Kansai Intl
KIX
Osaka Kansai Intl
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
15 Feb - 22 Feb
$860pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
KIX
Osaka Kansai Intl
KIX
Osaka Kansai Intl
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl

Seattle/Tacoma Intl to Osaka 2022 flight deals

Cheap flights to Osaka from Seattle found for this year
17 Oct - 27 Oct
$807pp
SEA
Seattle/Tacoma Intl
Japan Airlines
 
1 STOP
KIX
Osaka Kansai Intl
KIX
Osaka Kansai Intl
Japan Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
17 Oct - 27 Oct
$808pp
SEA
Seattle/Tacoma Intl
Japan Airlines
 
1 STOP
ITM
Osaka Itami
ITM
Osaka Itami
Japan Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
17 Oct - 27 Oct
$813pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
KIX
Osaka Kansai Intl
KIX
Osaka Kansai Intl
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl

Last minute flights from Seattle to Osaka

Late deals on round-trip flights to Osaka from Seattle, departing today and this week
1 Feb - 7 Apr
$1,239pp
SEA
Seattle/Tacoma Intl
Singapore Airlines
   
2 STOPS
KIX
Osaka Kansai Intl
KIX
Osaka Kansai Intl
Singapore Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
1 Feb - 7 Apr
$1,391pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
KIX
Osaka Kansai Intl
KIX
Osaka Kansai Intl
Japan Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
1 Feb - 7 Apr
$1,517pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
ITM
Osaka Itami
ITM
Osaka Itami
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl

One-way flights to Osaka from Seattle

The cheapest one-way flights from Seattle to Osaka
7:30 am - 2:50 pm
Japan Airlines
1 Stop
14h 20m
SEA - ITM
Japan Airlines
9:27 am - 3:10 am
ANA
2 Stops
24h 43m
SEA - UKB
ANA
3:55 am - 3:10 am
Multiple Airlines
2 Stops
30h 15m
SEA - UKB
Multiple Airlines

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Seattle</span> to <span class="emphasized">Osaka</span> flights.

Flight FAQs

From Seattle to Osaka

What airport do you fly from for flights from Seattle to Osaka?

Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Osaka. On average, Seattle/Tacoma Intl has 0 outbound flights to Osaka per day from 12 airlines. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

Which airlines flying from Seattle/Tacoma Intl to Osaka have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Seattle/Tacoma Intl to Osaka that may be offering flexible cancellation policies are Delta, Air Canada, and ANA. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from Seattle to Osaka for under $900 on Cheapflights?

Yes, there are multiple flights from Seattle to Osaka for under $900. The cheapest flight booked recently is on Multiple Airlines for just $815, but on average you can expect to pay $861.

Are there last-minute flights available from Seattle to Osaka for under $1,300?

There are currently 8+ open flights from Seattle to Osaka within the next 7 days for less than $1,300.

What are the cheapest airlines flying from Seattle to Osaka round-trip?

Japan Airlines, at $848, was found to be the cheapest airline from Seattle to Osaka. An alternate airline flying to your destination would be EVA Air. These flights start at 9% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Seattle to Osaka one-way?

The cheapest airlines for a one-way flight from Seattle to Osaka are Japan Airlines ($673), American Airlines ($738), and ANA ($777).

What are the cheapest flights from Seattle to Osaka?

On average you can expect to pay $916 for a flight from Seattle to Osaka. The cheapest flight overall is $405 while the most popular route, (Seattle/Tacoma Intl - Osaka Kansai Intl) is currently priced at $815.

What are the most popular airlines that fly from Seattle to Osaka?

Consider American Airlines, Air Canada or EVA Air when booking your flight. These represent the most popular airlines when flying from Seattle to Osaka.

What are the most popular routes from Seattle to Osaka?

While some choose either Seattle/Tacoma Intl - Osaka Itami or Seattle/Tacoma Intl - Kobe, Seattle/Tacoma Intl - Osaka Kansai Intl is the most popular route from Seattle to Osaka.

COVID Restrictions

View COVID Travel Restrictions for Osaka, Japan

Do I need a COVID test to fly to Osaka from Seattle?

Information is based on travel restrictions from Seattle/Tacoma Intl to Osaka

Most visitors from Seattle/Tacoma Intl will not be allowed to enter Osaka.

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl must present a negative RT-PCR (NAAT) test taken 72 hours before departing to Osaka.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering Osaka.

Do I need a test to fly back to Seattle from Osaka?

Returning to Seattle/Tacoma Intl from Osaka

COVID-19 testing requirements
Visitors from Osaka must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to Seattle/Tacoma Intl.

Quarantine requirements
Visitors from Osaka are not required to quarantine after entering Seattle/Tacoma Intl.

Hide COVID Travel Restrictions for Osaka, Japan

Destination information for Osaka

Things to know before you go - useful duration and weather info for your trip from Seattle to Osaka.
Today's exchange rate
$1 = ¥114
Average temperature for January in Osaka
50.0 °F
Avg rainfall for January in Osaka
2.2 ″

Airports servicing Seattle

Airports servicing Osaka

Osaka Itami (ITM)

Top 10 airlines flying from Seattle/Tacoma Intl to Osaka

The chart below displays the airlines Cheapflights users traveling from Seattle to Osaka choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
XiamenAir
$434 $502 No cancel fee 49%

We couldn't confirm the COVID-19 safety measures taken by XiamenAir. Please check directly on their website for additional information.

ANA
$560 $1,018 No cancel fee 80%
American Airlines
$580 $1,099 No cancel fee 71%
Japan Airlines
$639 $1,044 No cancel fee 79%

We couldn't confirm the COVID-19 safety measures taken by Japan Airlines. Please check directly on their website for additional information.

Asiana Airlines
$709 $901 No cancel fee 76%

We couldn't confirm the COVID-19 safety measures taken by Asiana Airlines. Please check directly on their website for additional information.

Korean Air
$718 $1,126 No cancel fee 81%
EVA Air
$723 $913 No cancel fee 74%
Delta
$723 $1,156 No cancel fee N/A
Air Canada
$803 $1,073 No cancel fee 67%
United Airlines
$865 $1,126 No cancel fee 69%
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