SEA - PUS

$407 Find Cheap Flights from Seattle to Busan - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Busan departing on 8/26. 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, 0 bags

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Everything you should know

Cheapest round-trip
$782
Typical prices: $959-$1,189
Cathay Pacific
Wed 9/2Tue 9/15
SEA - PUS • 1 stop
Cheapest one-way
$407
Cathay Pacific
Wed 8/26
SEA - PUS • 1 stop
Top airlines
Cathay Pacific
Cheapest • from $782 (round-trip)
Korean Air
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Seattle and Busan. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Hong Kong (HKG)
Cheapest • Avg $1,025 (round-trip)
Incheon (ICN)
Shortest trip • 15h 28m (one-way)
Insights
Insights
Insights
Insights
When to travel
June
Cheapest • 100% price drop
January
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Busan!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Busan (SEA-PUS)

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

Wed, Sep 2 - Tue, Sep 15
Cathay Pacific Logo
12:25 pm - 7:00 am
SEA
-
PUS
26h 35m
1 stop
Cathay Pacific Logo
2:20 pm - 10:05 am
PUS
-
SEA
35h 45m
1 stop
$782Cathay Pacific
Sun, Oct 18 - Thu, Nov 5
China Airlines Logo
1:15 am - 9:30 am
SEA
-
PUS
16h 15m
1 stop
China Airlines Logo
11:50 am - 6:10 pm
PUS
-
SEA
23h 20m
1 stop
$896China Airlines
Wed, Sep 2 - Tue, Sep 15
Multiple Airlines Logo
12:25 pm - 7:00 am
SEA
-
PUS
26h 35m
1 stop
Multiple Airlines Logo
9:50 pm - 2:22 pm
PUS
-
SEA
32h 32m
2 stops
$907Multiple Airlines
Wed, Sep 2 - Tue, Sep 15
Multiple Airlines Logo
12:25 pm - 1:35 pm
SEA
-
PUS
33h 10m
1 stop
Multiple Airlines Logo
9:30 am - 10:05 am
PUS
-
SEA
40h 35m
3 stops
$918Multiple Airlines
Thu, Nov 12 - Sun, Nov 29
China Airlines Logo
12:10 am - 6:50 pm
SEA
-
PUS
25h 40m
1 stop
China Airlines Logo
10:10 am - 6:10 pm
PUS
-
SEA
25h 00m
1 stop
$921China Airlines
Sun, Oct 18 - Thu, Nov 5
China Airlines Logo
1:15 am - 9:30 am
SEA
-
PUS
16h 15m
1 stop
China Airlines Logo
11:50 am - 6:10 pm
PUS
-
SEA
23h 20m
1 stop
$926China Airlines
Sat, Sep 12 - Sun, Sep 20
STARLUX Airlines Logo
1:15 am - 11:30 am
SEA
-
PUS
18h 15m
1 stop
STARLUX Airlines Logo
2:30 pm - 4:10 pm
PUS
-
SEA
17h 40m
1 stop
$945STARLUX Airlines
Sun, Oct 18 - Thu, Nov 5
China Airlines Logo
1:15 am - 9:30 am
SEA
-
PUS
16h 15m
1 stop
China Airlines Logo
11:50 am - 6:10 pm
PUS
-
SEA
23h 20m
1 stop
$958China Airlines
Thu, Sep 10 - Mon, Sep 14
Korean Air Logo
7:15 am - 8:45 pm
SEA
-
PUS
21h 30m
2 stops
Korean Air Logo
4:30 pm - 1:37 pm
PUS
-
SEA
13h 07m
1 stop
$1,446Korean Air
Fri, Sep 11 - Tue, Sep 15
Korean Air Logo
7:15 am - 7:35 pm
SEA
-
PUS
20h 20m
2 stops
Korean Air Logo
10:40 am - 10:40 am
PUS
-
SEA
16h 00m
1 stop
$1,446Korean Air
Booking Insights

KAYAK's insights & trends for Seattle to Busan flights

Get data-powered insights and trends into flights from Seattle to Busan to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Seattle to Busan?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Busan, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Busan is June, where tickets cost $0 (return) on average. On the other hand, the most expensive months are December and March, where the average cost of round-trip tickets is $1,994 and $1,460 respectively.

Find deals

Good to know

Cheapest flight

$407
Most popular time to fly and prices are also 16% lower on average.
Flight from Seattle to Busan

When to book flights from Seattle to Busan

Are your dates flexible? Find out the best times to travel from Seattle to Busan 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 Seattle to Busan

  • What is the cheapest flight from Seattle to Busan?

    In the last 5 days, the lowest price for a flight from Seattle to Busan was $407 for a one-way ticket and $782 for a round-trip.

  • Do I need a passport to fly between Seattle and Busan?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Seattle and on arrival in Busan.

  • Which aircraft models fly most regularly from Seattle to Busan?

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

  • Which airline alliances offer flights from Seattle to Busan?

    SkyTeam is the only airline alliance operating flights between Seattle and Busan.

  • How does KAYAK find such low prices on flights from Seattle to Busan?

    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 Seattle to Busan.

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

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

    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 Busan with an airline and back to Seattle with another airline. Booking your flights between Seattle and PUS can sometimes prove cheaper using this method.

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

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

Reviews of the top airline flying from Seattle to Busan

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Busan. 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 Seattle to Busan? 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.
8.4
Korean AirOverall score based on 1223 reviews
8.2Entertainment
8.5Boarding
8.3Comfort
8.7Crew
8.1Food
Airline reviews

The boarding process was efficient and quick. The seats were comfortable. The food was good. The service was excellent. We had a lovely flight from Seattle on Korean air

10.0 ExcellentVivian, Nov 2025
SEA - ICN
Read more Korean Air reviews

The boarding process was efficient and quick. The seats were comfortable. The food was good. The service was excellent. We had a lovely flight from Seattle on Korean air

Flight crew was fantastic. The aircraft was meticulously cleaned at all times. The crew was continuously checking to see if the passengers were ok.

I was unable to select decent seats, and so I was stuck in the middle seat because it was selected for me

The flight was on time and very quick, as expected, but the leg room isn't great in coach seats.

I took several flights that day, this was the only flight that was absolutely freezing!! It was so cold.

Terrible experience will never fly Delta again. Delayed flight with total disorganization and inept crew who wouldn’t communicate.

Going through security a third time to get on the next flight was again utterly ridiculous and unnecessary. We were in a International secure area once again and as far as I'm concerned should not have been put through the gears for absolutely no reason. The United States can get all the information they need from the travel itinerary, there was no need to be forced out of a secure area to personally interview everyone on a connecting flight to find out their US immigration status.

Spokane airport was easy to get through. Seattle having my arrival and international departure gate so close to each other was fantastic! The waiting area though was a bit confusing about where to sit for my gate.

Spokane airport was easy to get through. Seattle having my arrival and international departure gate so close to each other was fantastic!

The airplane very small , no space for put my carry on , they tell me loads my carry on I thought they will load my carry only Seattle to San Francisco but when I get off airplane at San Francisco they just tell me load my bags from Seattle to Bangkok Why they don’t tell me before load . I told them I don’t want load my bag from Seattle to Bangkok , because my carry on had medicine. Why crew from Seattle don’t help me , they only told my go to tell luggage claim Delta

Everything you need to know for your flight from Seattle to Busan

Information on your arrival and departure airports

Seattle (SEA)
Busan (PUS)