Cheap flights from Seattle (SEA) to Incheon (ICN)

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The best prices from Seattle to Incheon are usually found in November or March, booked 60 days in advance, depart on a Thursday or Sunday and return on a Monday

How to find the cheapest flight from
Seattle (SEA) to Incheon (ICN)

All the information you need to plan the best SEA to ICN flight in 2021: compare Seattle to Incheon flight prices with the expected peak season, weather and rainfall in Incheon.
SEA - ICN
Price
$839 - $1,377
ICN
Temperature
35.6 - 84.2 °F
ICN
Rainfall
0.8 - 16.2 inches

Popular in

December

High demand for flights, 30% potential price rise

Cheapest in

November

Best time to find cheap flights, 13% potential price drop

Round-trip from

$839

From Seattle to Incheon

One-way from

$614

One-way flight from Seattle to Incheon

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Seattle to Incheon?

It’s generally more expensive to depart on a Wednesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

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

To save on the cost of your flight from Seattle to Incheon, book at least 61 days before your planned departure. Booking around this time can save you about 39% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $1,193 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,211.

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

Our data shows that April tends to be the cheapest month to fly to Incheon from Seattle. Users have commonly found prices around $1,098 for the month, but tickets can be as low as $549. Due to multiple factors, prepare for potentially higher prices in June.

When is the cheapest time to fly from Seattle to Incheon (SEA - ICN)?

It’s typically best to fly out from Seattle to Incheon in the evening. Doing so could potentially save you 19% on the flight price compared to flying in the morning, which is usually more expensive.

Cheap flights from Seattle to Incheon in May, June 2021

The best prices found for SEA to ICN flights for May, June
15 Jun - 6 Oct
$927pp
SEA
Seattle/Tacoma Intl
Lufthansa
   
2 STOPS
ICN
Incheon Intl
ICN
Incheon Intl
Lufthansa
   
2 STOPS
SEA
Seattle/Tacoma Intl
10 Jun - 7 Sep
$938pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
ICN
Incheon Intl
ICN
Incheon Intl
Lufthansa
   
2 STOPS
SEA
Seattle/Tacoma Intl
15 Jun - 6 Oct
$948pp
SEA
Seattle/Tacoma Intl
Lufthansa
   
2 STOPS
ICN
Incheon Intl
ICN
Incheon Intl
Lufthansa
 
1 STOP
SEA
Seattle/Tacoma Intl

Seattle to Incheon 2021 flight deals

Cheap flights to Incheon from Seattle found for this year
6 Oct - 20 Oct
$734pp
SEA
Seattle/Tacoma Intl
United Airlines
   
2 STOPS
ICN
Incheon Intl
ICN
Incheon Intl
United Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
15 Aug - 13 Sep
$738pp
SEA
Seattle/Tacoma Intl
United Airlines
   
2 STOPS
ICN
Incheon Intl
ICN
Incheon Intl
United Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
6 Oct - 20 Oct
$739pp
SEA
Seattle/Tacoma Intl
United Airlines
   
2 STOPS
ICN
Incheon Intl
ICN
Incheon Intl
United Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl

Non-stop flights to Incheon from Seattle

Save time with Seattle to Incheon direct flight deals
4 Oct - 9 Feb
$936pp
SEA
Seattle/Tacoma Intl
Asiana Airlines
Non-Stop
ICN
Incheon Intl
ICN
Incheon Intl
Asiana Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
3 Oct - 2 Nov
$937pp
SEA
Seattle/Tacoma Intl
Asiana Airlines
Non-Stop
ICN
Incheon Intl
ICN
Incheon Intl
Asiana Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
15 Aug - 10 Oct
$938pp
SEA
Seattle/Tacoma Intl
Korean Air
Non-Stop
ICN
Incheon Intl
ICN
Incheon Intl
Korean Air
Non-Stop
SEA
Seattle/Tacoma Intl

Last minute flights from Seattle to Incheon

Late deals on round-trip flights to Incheon from Seattle, departing today and this week
27 May - 28 Jun
$1,003pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
ICN
Incheon Intl
ICN
Incheon Intl
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
27 May - 3 Jul
$1,010pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
ICN
Incheon Intl
ICN
Incheon Intl
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
24 May - 24 Jun
$1,015pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
ICN
Incheon Intl
ICN
Incheon Intl
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl

One-way flights to Incheon from Seattle

The cheapest one-way flights from Seattle to Incheon
7:00 am - 12:05 pm
Air Canada
1 Stop
13h 05m
SEA - ICN
Air Canada
$614
Priceline
10:20 am - 1:45 pm
Asiana Airlines
Nonstop
11h 25m
SEA - ICN
Asiana Airlines
$631
Flyus
10:10 pm - 2:45 pm
EVA Air
1 Stop
24h 35m
SEA - ICN
EVA Air
$633
FlightHub

Related info for your journey

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

Flight FAQs

From Seattle to Incheon

Are flight prices decreasing from Seattle to Incheon due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Seattle and Incheon for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

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

Due to the rapidly changing circumstances due to COVID-19, airlines like Asiana Airlines, Korean Air, and Delta flying from Seattle/Tacoma Intl to Incheon Intl have implemented new flexible cancellation policies.

What airports do I use to fly from Seattle to Incheon?

Incheon Intl is the airport most travelers will use when flying to Incheon from Seattle/Tacoma Intl. Booking flights from Seattle/Tacoma Intl (SEA) to Incheon Intl (ICN) should be relatively easy as there is 1 daily flight to Incheon from 10 different airlines. 11h 25m is how long a flight from Seattle to Incheon Intl will take if you book a nonstop flight.

Can I find flights from Seattle to Incheon for under $800 on Cheapflights?

Yes, there are multiple flights from Seattle to Incheon for under $800. The cheapest flight booked recently is on United Airlines for just $734, but on average you can expect to pay $861.

Are there nonstop flights from Seattle to Incheon for under $1,000 on Cheapflights?

Cheapflights has at least 20 direct flights from Seattle to Incheon under $1,000. A good price for a nonstop flight from Seattle to Incheon is less than $993.

Are there last-minute flights available from Seattle to Incheon for under $1,100?

There are currently 20+ open flights from Seattle to Incheon within the next 7 days for less than $1,100.

How popular is this flight route?

This flight path from Seattle/Tacoma Intl to Incheon Intl was viewed by 114 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

Does it rain more in Seattle or Incheon?

Expected rainfall in Seattle is more than in Incheon. You can expect this to be the case over the next 17 days.

Is Seattle weather warmer or cooler than Incheon?

With an average temperature of 84 °F, peak weather can be found in August. As a traveler, expect to see changes in flight prices during that period. The temperatures in Incheon are hotter than in Seattle.

How long is the flight from Seattle to Incheon?

A quick flight from Seattle to Incheon can take about 11h 25m. Asiana Airlines provides one of the quickest options available for as low as $937. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

According to our current data, United Airlines ($734), Air Canada ($761), and Lufthansa ($910) offers the cheapest pricing from Seattle to Incheon. United Airlines is 23% cheaper than the average price of flights available within the next 90 days to this destination.

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

For one-way options, check prices for Air Canada. According to our data, you can fly for as low as $614. Users have also found prices from $620 and $630 on Air Canada and EVA Air, respectively.

Alternative routes for Seattle to Incheon

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Incheon

Things to know before you go - useful duration and weather info for your trip from Seattle to Incheon.
Today's exchange rate
$1 = 1,135원
Flight duration
10h 52m
Average temperature for May in Incheon
71.6 °F
Avg rainfall for May in Incheon
4.4 ″

Airports servicing Seattle

Airports servicing Incheon

Top 9 airlines flying from Seattle to Incheon

The chart below displays the airlines Cheapflights users traveling from Seattle to Incheon 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
$407 $580 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.

EVA Air
$601 $842 No cancel fee 74%
Cathay Pacific
$583 $851 No cancel fee 72%
China Eastern
$670 $875 No cancel fee 62%

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

United Airlines
$749 $920 No cancel fee 69%
Air Canada
$741 $971 No cancel fee 67%
Asiana Airlines
$774 $1,022 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
$790 $1,047 No cancel fee 81%
Delta
$725 $1,074 No cancel fee N/A

Hourly flight availability from Seattle to Incheon

See what time of day planes typically take off from Seattle towards Incheon.
Afternoon Noon to 6 PM 73% of SEA to ICN departures
Morning 6 AM to noon 16% of SEA to ICN departures
Evening 6 PM to midnight 10% of SEA to ICN departures
Early morning Midnight to 6 AM 1% of SEA to ICN departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Seattle to Incheon
See how many times per day planes take to the skies headed from Seattle to Incheon.
Sunday
2 daily flights
Monday
3 daily flights
Tuesday
2 daily flights
Wednesday
1 daily flight
Thursday
0 flights
Friday
2 daily flights
Saturday
1 daily flight
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