Cheap Flights from Seattle, WA to Seoul from $451

Return flight: Seoul – Seattle

On Cheapflightsplus.com you will find 6 direct and 995 connecting flights from Seattle to Seoul. You can compare airfare deals from 22 airlines and multiple travel sites from $451, book and save on cheap plane tickets and last minute offers. Also check out SEA-SEL flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Seattle to Seoul Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $451 (one-way), $773 (round-trip).
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Full flight schedule will help you in detecting at what time planes fly from Seattle to Seoul. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
12:55 — 16:30
+1 day
12:55 — 16:30 KE5020 Korean Air
Seattle — Seoul
11h 35m
Find flight
from$689
13:20 — 16:40
+1 day
13:20 — 16:40 KE42 Korean Air
Seattle — Seoul
11h 20m
Find flight
from$647
14:30 — 17:55
+1 day
14:30 — 17:55 OZ271 Asiana Airlines
Seattle — Seoul
11h 25m
Find flight
from$628
14:30 — 17:55
+1 day
14:30 — 17:55 UA7292 United Airlines
Seattle — Seoul
11h 25m
Find flight
from$6804
15:10 — 18:35
+1 day
15:10 — 18:35 HA871 Hawaiian Airlines
Seattle — Seoul
11h 25m
Find flight
from$568
15:10 — 18:35
+1 day
15:10 — 18:35 AS8471 Alaska Airlines
Seattle — Seoul
11h 25m
Find flight
from$573
07:00 — 20:30
+1 day
07:00 — 09:08 HA6913 Hawaiian Airlines
Seattle — San Francisco
6h 22m stop
15:30 — 20:30 YP112 YP
San Francisco — Seoul
21h 30m
including layover
Find flight
from$481
07:00 — 20:30
+1 day
07:00 — 09:08 AS1226 Alaska Airlines
Seattle — San Francisco
6h 22m stop
15:30 — 20:30 YP112 YP
San Francisco — Seoul
21h 30m
including layover
Find flight
from$517
08:05 — 20:30
+1 day
08:05 — 10:21 HA6557 Hawaiian Airlines
Seattle — San Francisco
5h 9m stop
15:30 — 20:30 YP112 YP
San Francisco — Seoul
20h 25m
including layover
Find flight
from$467
13:35 — 20:30
+2 days
13:35 — 15:48 AS1132 Alaska Airlines
Seattle — San Francisco
23h 42m stop
15:30 — 20:30 YP112 YP
San Francisco — Seoul
38h 55m
including layover
Find flight
from$469
13:40 — 20:30
+2 days
13:35 — 15:48 HA6901 Hawaiian Airlines
Seattle — San Francisco
23h 38m stop
15:30 — 20:30 YP112 YP
San Francisco — Seoul
38h 50m
including layover
Find flight
from$482
15:13 — 20:30
+2 days
15:08 — 17:17 HA6908 Hawaiian Airlines
Seattle — San Francisco
22h 8m stop
15:30 — 20:30 YP112 YP
San Francisco — Seoul
37h 17m
including layover
Find flight
from$482
15:55 — 20:30
+2 days
15:44 — 17:57 HA6904 Hawaiian Airlines
Seattle — San Francisco
21h 21m stop
15:30 — 20:30 YP112 YP
San Francisco — Seoul
36h 35m
including layover
Find flight
from$461
16:50 — 20:30
+2 days
16:50 — 19:00 HA6912 Hawaiian Airlines
Seattle — San Francisco
20h 30m stop
15:30 — 20:30 YP112 YP
San Francisco — Seoul
35h 40m
including layover
Find flight
from$481
16:50 — 20:30
+2 days
16:50 — 19:00 AS1200 Alaska Airlines
Seattle — San Francisco
20h 30m stop
15:30 — 20:30 YP112 YP
San Francisco — Seoul
35h 40m
including layover
Find flight
from$487
17:05 — 20:30
+2 days
16:42 — 18:53 HA6895 Hawaiian Airlines
Seattle — San Francisco
20h 11m stop
15:30 — 20:30 YP112 YP
San Francisco — Seoul
35h 25m
including layover
Find flight
from$482
18:05 — 20:30
+2 days
18:05 — 20:19 AS1140 Alaska Airlines
Seattle — San Francisco
19h 11m stop
15:30 — 20:30 YP112 YP
San Francisco — Seoul
34h 25m
including layover
Find flight
from$480
18:47 — 20:30
+2 days
18:36 — 20:51 HA6879 Hawaiian Airlines
Seattle — San Francisco
18h 30m stop
15:30 — 20:30 YP112 YP
San Francisco — Seoul
33h 43m
including layover
Find flight
from$482
19:13 — 20:30
+2 days
18:59 — 21:12 HA6905 Hawaiian Airlines
Seattle — San Francisco
18h 8m stop
15:30 — 20:30 YP112 YP
San Francisco — Seoul
33h 17m
including layover
Find flight
from$482
19:55 — 20:30
+2 days
19:55 — 22:03 HA6563 Hawaiian Airlines
Seattle — San Francisco
17h 27m stop
15:30 — 20:30 YP112 YP
San Francisco — Seoul
32h 35m
including layover
Find flight
from$476
20:26 — 20:30
+2 days
20:26 — 22:40 AS1050 Alaska Airlines
Seattle — San Francisco
16h 50m stop
15:30 — 20:30 YP112 YP
San Francisco — Seoul
32h 4m
including layover
Find flight
from$471
20:37 — 20:30
+2 days
20:37 — 22:49 HA6911 Hawaiian Airlines
Seattle — San Francisco
16h 41m stop
15:30 — 20:30 YP112 YP
San Francisco — Seoul
31h 53m
including layover
Find flight
from$482
21:40 — 20:30
+2 days
21:40 — 23:58 HA6897 Hawaiian Airlines
Seattle — San Francisco
15h 31m stop
15:30 — 20:30 YP112 YP
San Francisco — Seoul
30h 50m
including layover
Find flight
from$461
21:44 — 20:30
+2 days
20:04 — 22:11 HA6800 Hawaiian Airlines
Seattle — San Francisco
15h 31m stop
15:30 — 20:30 YP112 YP
San Francisco — Seoul
30h 46m
including layover
Find flight
from$466
05:25 — 20:30
+1 day
05:25 — 06:20 HA6833 Hawaiian Airlines
Seattle — Portland
40m stop
07:00 — 08:48 HA6368 Hawaiian Airlines
Portland — San Francisco
6h 42m stop
15:30 — 20:30 YP112 YP
San Francisco — Seoul
23h 5m
including layover
Find flight
from$474
05:30 — 01:40
+2 days
05:30 — 06:38 AC8801 Air Canada
Seattle — Vancouver
4h 42m stop
11:20 — 16:05 AC7 Air Canada
Vancouver — Hong Kong
5h stop
21:05 — 01:40 UO614 Hong Kong Express Airways
Hong Kong — Seoul
28h 10m
including layover
Find flight
from$451
08:55 — 20:30
+1 day
08:55 — 09:50 HA6830 Hawaiian Airlines
Seattle — Portland
40m stop
10:30 — 12:24 HA6405 Hawaiian Airlines
Portland — San Francisco
3h 6m stop
15:30 — 20:30 YP112 YP
San Francisco — Seoul
19h 35m
including layover
Find flight
from$488
11:30 — 19:40
+2 days
11:30 — 13:46 HA6900 Hawaiian Airlines
Seattle — San Francisco
3h 34m stop
17:20 — 20:00 ZG25 Grozny Avia
San Francisco — Tokyo
20h 55m stop
16:55 — 19:40 7C1106 Jeju Air
Tokyo — Seoul
40h 10m
including layover
Find flight
from$518
11:40 — 18:45
+2 days
11:40 — 12:48 AS925 Alaska Airlines
Seattle — Vancouver
22h 47m stop
11:35 — 14:06 WS110 WestJet
Vancouver — Calgary
1h 49m stop
15:55 — 18:45 WS86 WestJet
Calgary — Seoul
39h 5m
including layover
Find flight
from$504
*Departure and arrival times - local. Updated on August 2, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Seattle to Seoul depends on and how to choose the most interesting flight option for you.

Distance between Seattle and Seoul is 8336 miles. Time difference between the cities is 5h. Airplanes depart 01:10 to 23:59 from 3 Seattle airports and arrive 01:10 to 23:59 to 3 Seoul airports. Average flight time is 11h 25m.

  • The fastest flight 11h 20m
  • Average flight time 11h 25m
  • The earliest flight 01:10
  • The latest flight 23:59
  • Distance 5180 ml

The cheapest months to travel to Seoul are august (from 451 $), september (from 461 $), july (from 467 $).

The most expensive months are december (from 1 302 $), october (from 699 $), february (from 665 $).

What is the lowest airfare Seattle to Seoul?

The cheapest plane ticket found by our users is $451. This airfare is for economy class on one-way AC8801 flight by Air Canada for August 8, 2025 which leaves Seattle-Tacoma Intl in Seattle at 05:30 am and arrives at Seoul Incheon International at 01:40.

Economy class
$451
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Business class
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First class
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Popular Airlines on the Route

The flight Seattle — Seoul is served by 22 regular airlines and 5 low-cost airlines. Most of the flights on this route are operated by Asiana Airlines - 3 departures per week at the price of from $ 628 . And the most expensive tickets are offered by United Airlines airline - from $ 6804.

Direct flights

There are 6 nonstop flights on the route. The fastest direct flight is KE42 by Korean Air takes 11h 20m and the cheapest is AC8801 by Air Canada for $568.

  • from $647
    Find
  • from $628
    Find
  • AS - Alaska Airlines
    from $573
    Find
  • HA - Hawaiian Airlines
    from $568
    Find
  • UA - United Airlines
    from $6804
    Find
See more direct flights

Connecting Flights

There are 995 flights with layovers on the route. The fastest connecting flight is AC8803 by Air Canada takes 14h 5m and the cheapest is AC8801 by Air Canada for $451.

  • from $837
    Find
  • from $579
    Find
  • QR - Qatar Airways
    from $883
    Find
  • AC - Air Canada
    from $451
    Find
  • PR - Philippine Airlines
    from $636
    Find
  • JL - Japan Airlines - JAL
    from $645
    Find
  • CI - China Airlines
    from $580
    Find
  • SY - Sun Country Airlines
    from $656
    Find
  • UA - United Airlines
    from $746
    Find
  • HU - Hainan Airlines
    from $556
    Find
  • JX - Jambojet
    from $574
    Find
  • BR - EVA Airways Corporation
    from $595
    Find
See more connecting flights

Airports

You can fly from Seattle to Seoul from 3 airports (Boeing Field International Airport, Seattle-Tacoma Intl, Kenmore Air Harbor SPB).

Seattle airports

  • Boeing Field International Airport-BFI
    Find
  • Seattle-Tacoma Intl-SEA
    from $451
    Find
  • Kenmore Air Harbor SPB-LKE
    Find

Seoul airports

  • Incheon International-ICN
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  • Gimpo International-GMP
    Find
  • Seoul AB-SSN
    Find

How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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