SEA - PUS

$434 Find Cheap Flights from Seattle to Busan

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 4/22. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Busan, 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 Seattle to Busan, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Bundle and saveSave money when you bundle your flight + hotel.

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Everything you should know

Cheapest round-trip
$910
Overall average: $1,231
Korean Air
Thu 4/23Mon 4/27
SEA - PUS • 1 stop
Cheapest one-way
$434
Multiple Airlines
Wed 4/22
SEA - PUS • 2 stops
Top airlines
Korean Air
Cheapest • from $910 (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
Taipei City (TPE)
Cheapest • Avg $1,028 (round-trip)
Incheon (ICN)
Shortest trip • 15h 07m (one-way)
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 32% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
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

Thu, Apr 23 - Mon, Apr 27
Korean Air Logo
12:50 pm - 7:35 pm
SEA
-
PUS
14h 45m
1 stop
Korean Air Logo
8:00 am - 10:40 am
PUS
-
SEA
18h 40m
1 stop
$910Korean Air
Mon, Aug 17 - Sun, Aug 30
China Airlines Logo
1:55 am - 9:30 am
SEA
-
PUS
15h 35m
1 stop
China Airlines Logo
12:15 pm - 7:45 pm
PUS
-
SEA
23h 30m
1 stop
$943China Airlines
Thu, Aug 27 - Sat, Sep 19
China Airlines Logo
1:55 am - 9:30 am
SEA
-
PUS
15h 35m
1 stop
China Airlines Logo
10:30 am - 7:15 pm
PUS
-
SEA
24h 45m
1 stop
$954China Airlines
Wed, Apr 29 - Wed, May 6
Korean Air Logo
12:50 pm - 4:35 pm
SEA
-
PUS
35h 45m
1 stop
Korean Air Logo
10:40 am - 10:40 am
PUS
-
SEA
16h 00m
1 stop
$959Korean Air
Wed, Apr 29 - Wed, May 6
Korean Air Logo
8:31 am - 7:35 pm
SEA
-
PUS
19h 04m
2 stops
Korean Air Logo
10:40 am - 10:40 am
PUS
-
SEA
16h 00m
1 stop
$961Korean Air
Wed, Apr 29 - Wed, May 6
Korean Air Logo
8:31 am - 7:35 pm
SEA
-
PUS
19h 04m
2 stops
Korean Air Logo
4:30 pm - 8:50 pm
PUS
-
SEA
20h 20m
2 stops
$962Korean Air
Mon, Aug 17 - Sun, Aug 30
Multiple Airlines Logo
2:10 am - 6:00 pm
SEA
-
PUS
23h 50m
1 stop
Multiple Airlines Logo
7:10 pm - 9:07 pm
PUS
-
SEA
41h 57m
2 stops
$974Multiple Airlines
Wed, Aug 19 - Sun, Aug 30
STARLUX Airlines Logo
1:15 am - 5:55 pm
SEA
-
PUS
24h 40m
1 stop
STARLUX Airlines Logo
6:55 pm - 4:35 pm
PUS
-
SEA
37h 40m
1 stop
$993STARLUX Airlines
Wed, Aug 19 - Mon, Aug 31
EVA Air Logo
2:10 am - 6:00 pm
SEA
-
PUS
23h 50m
1 stop
EVA Air Logo
7:10 pm - 7:50 pm
PUS
-
SEA
16h 40m
1 stop
$995EVA Air
Thu, Apr 23 - Mon, Apr 27
Korean Air Logo
12:50 pm - 9:30 am
SEA
-
PUS
28h 40m
1 stop
Korean Air Logo
7:00 am - 1:07 pm
PUS
-
SEA
22h 07m
1 stop
$1,010Korean 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 August, where tickets cost $892 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,994 and $1,801 respectively.

Find deals

Good to know

Low seasonApril
Cheapest flight$434
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 11% increase in price.
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 3 days, the lowest price for a flight from Seattle to Busan was $434 for a one-way ticket and $910 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 1202 reviews
8.7Crew
8.2Entertainment
8.1Food
8.3Comfort
8.5Boarding
Airline reviews

Always on time and flight crew were great. Boarding in Manila was a bit chaotic and disorganized compared to Incheon.

10.0 ExcellentOmer, Mar 2026
MNL - ICN
Read more Korean Air reviews

Always on time and flight crew were great. Boarding in Manila was a bit chaotic and disorganized compared to Incheon.

Never had a flight delay issue with Korean Air, that's why I always go with this airline.

Flight crew were very attentive and made this trip a pleasure. Plus the fact that this our first time flying business class.

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.

Korean are so racist and when I ask question or directions they totally ignore me and say racist. Also they give me an rude attitude.

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

Friendly flight attendants and gate agents. Very clean plane and food was good!

I normally love Korean Air, but this trip was not great. We boarded the plan and were settling into our seats. My son and I use these leg swings and we used it on the trip over to Cambodia, but on the way back the flight attendant very rudely told us we could not use it and that it was against regulations. I asked to see the regulation, but never saw it. The food on this trip was horrible as well, Even my son's kids meal was disgusting so we didn't eat anything on the flight. Thankfully we brought snacks. Entertainment - what happened to the games?

This was an amazing flight. The crew was great. The service was great. The food provided was great.

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

Information on your arrival and departure airports

Seattle (SEA)
Busan (PUS)