Cheap flights from Seattle to Seoul

24 nonstop flights a week, 3 of them today. Operated by 3 airlines, about 11h 55m in the air, 5,171 mi (8,322 km). Tickets from $433, nonstop from $624.

Flights from Seattle to Seoul

Pick a departure date to see flights and seller prices

We search agencies and airlines for your day: nonstop and connecting flights, baggage, departure and arrival times.

Prices by day: Seattle to Seoul

Lowest one-way price in dollars from recent searches, cheap days in green. Press a day to see flights and exact prices.

Filters

Best fares from Seattle to Seoul

Lowest one-way prices found by recent searches for the next 120 days; press a card to search that date

Seattle to Seoul at a glance

flight time, from 11h 20m to 12h 20m
11h 55m
straight-line distance
5,171 mi (8,322 km)
flights a week
24
flights today
3
first and last departure
00:10 - 12:40
lowest price, with a connection, 19 February
$433
lowest nonstop price
$624
airlines
3

Seattle to Seoul ticket prices by month

Lowest one-way fare found by recent searches

Cheapest month: January 2027, tickets from $394. Prices come from searches over the last few days; check the search for your exact date.

The most expensive month is April 2027: from $513. The average across months is $464.

Seattle to Seoul flight schedule

24 flights a week, 3 today, 12 seasonal or one-off. Departure and arrival times are local.

FlightDepartsArrivesDurationDaysAircraft
KE 48
Korean Air
00:10 Seattle-Tacoma International
05:20 Incheon International, terminal 2
12h 10m
Mon, Tue, Wed, Fri, Sat
Boeing 787
KE 42
Korean Air
11:00 Seattle-Tacoma International
15:55 Incheon International, terminal 2
11h 55m
Daily
Boeing 787
DL 197
Delta
12:30 Seattle-Tacoma International
17:45 Incheon International, terminal 2
12h 15m
Daily
Airbus A350-900
AS 119
Alaska Airlines
12:40 Seattle-Tacoma International
17:35 Incheon International, terminal 1
11h 55m
Wed, Thu, Fri, Sat, Sun
Boeing 787-900

Seasonal and one-off flights

Not operating in the next two weeks. The first of them is on 1 December.

FlightDepartsArrivesDurationDaysAircraft
DL 197
Delta
12:35 Seattle-Tacoma International
17:45 Incheon International, terminal 2
12h 10m
Seasonal
Airbus A350-900
DL 197
Delta
12:40 Seattle-Tacoma International
17:45 Incheon International, terminal 2
12h 5m
Seasonal
Airbus A350-900
DL 197
Delta
12:50 Seattle-Tacoma International
17:45 Incheon International, terminal 2
11h 55m
Seasonal
Airbus A350-900
DL 197
Delta
12:45 Seattle-Tacoma International
17:45 Incheon International, terminal 2
12h
Seasonal
Airbus A350-900
KE 42
Korean Air
12:00 Seattle-Tacoma International
15:55 Incheon International, terminal 2
11h 55m
Seasonal
Boeing 787
AS 119
Alaska Airlines
13:40 Seattle-Tacoma International
17:35 Incheon International, terminal 1
11h 55m
Seasonal
Boeing 787-900
DL 197
Delta
13:45 Seattle-Tacoma International
17:45 Incheon International, terminal 2
12h
Seasonal
Airbus A350-900
DL 197
Delta
13:05 Seattle-Tacoma International
16:50 Incheon International, terminal 2
11h 45m
Seasonal
Airbus A350-900
AS 119
Alaska Airlines
13:35 Seattle-Tacoma International
17:30 Incheon International, terminal 1
11h 55m
Seasonal
Boeing 787-900
KE 42
Korean Air
12:50 Seattle-Tacoma International
16:40 Incheon International, terminal 2
11h 50m
Seasonal
Boeing 787
KE 48
Korean Air
00:55 Seattle-Tacoma International
05:15 Incheon International, terminal 2
12h 20m
Seasonal
Boeing 787
KE 42
Korean Air
13:20 Seattle-Tacoma International
16:40 Incheon International, terminal 2
11h 20m
Seasonal
Boeing 787

Days of the week are taken from the schedule for the next 14 days; schedules change by season. Seoul is 17 hours ahead of Seattle. The search shows seat availability and the price for your date.

Airlines flying Seattle to Seoul

Flights a week by schedule and the cheapest nonstop fare of each airline found by recent searches

Airports

Where flights from Seattle to Seoul depart and land

Departure from Seattle

24 flights a week, 11 mi (18 km) from the city centre

Arrival in Seoul

24 flights a week, terminals 1, 2, 30 mi (48 km) from the city centre

When to visit Seoul

Weather by month

Best time to visit: June and September, +26° to +27° by day, sea +23° to +27°. In November it is +12° by day and +2° at night, sea +16°, with 6 rainy days.

Jan
+2° −7° +4° 4 days
Feb
+5° −5° +3° 4 days
Mar
+12° +1° +6° 7 days
Apr
+18° +7° +11° 7 days
May
+22° +12° +17° 9 days
Jun
+27° +18° +23° 13 days
Jul
+30° +23° +27° 18 days
Aug
+30° +23° +30° 18 days
Sep
+26° +18° +27° 11 days
Oct
+19° +10° +22° 9 days
Nov
+12° +2° +16° 6 days
Dec
+3° −6° +8° 5 days

Daytime and night temperatures in °C, sea temperature (in blue), rainy days. Months with the most comfortable weather are in green. Long-term averages.

Frequently asked questions

How long is the flight from Seattle to Seoul?
A nonstop flight takes 11 hours 55 minutes on average, from 11h 20m to 12h 20m depending on the flight.
How far is Seoul from Seattle?
5,171 mi (8,322 km) in a straight line between the cities.
Which airlines fly nonstop from Seattle to Seoul?
Korean Air (12 a week), Delta (7 a week) and Alaska Airlines (5 a week).
How many flights a day are there from Seattle to Seoul?
3 flights today and 24 a week, about 3.4 a day on average.
When are the first and last flights from Seattle to Seoul?
The first departure is at 00:10 (KE48), the last at 12:40 (AS119). Local time.
What is the cheapest month to fly from Seattle to Seoul?
January 2027: tickets from $394. The most expensive is April 2027, from $513.
What is the cheapest upcoming date to fly from Seattle to Seoul?
7 January 2027 (Thursday): from $394 one way, with a connection, by recent searches. The search shows the price for your dates.
Which airline is the cheapest from Seattle to Seoul?
Korean Air: nonstop tickets from $624 on 20 February by recent searches. Prices change daily, so compare the sellers in the search.
What is the time difference between Seattle and Seoul?
Seoul is 17 hours ahead of Seattle. Schedule times on this page are local to each airport.
Which Seattle airport do flights to Seoul leave from?
Seattle-Tacoma International (24 a week).