Cheap flights from Seattle to Incheon

Round-trip
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Seattle (SEA)
Incheon (ICN)
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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 2022: compare Seattle to Incheon flight prices with the expected peak season, weather and rainfall in Incheon.
SEA - ICN
Price
C$ 991 - C$ 1,462
ICN
Temperature
-2 - 25 °C
ICN
Rainfall
20 - 260 mm

Popular in

June

High demand for flights, 20% potential price rise

Cheapest in

October

Best time to find cheap flights, 15% potential price drop

Average price

C$ 1,375

Average for round-trip flights in August 2022

Round-trip from

C$ 1,265

From Seattle/Tacoma Intl to Incheon Intl

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
When is the cheapest time to fly from Seattle to Incheon (SEA - ICN)?

One of the essential ways to save on airfare from Seattle to Incheon is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 23% on airfare.

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

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, January can be a great choice for travel to Incheon. Flights to Incheon from Seattle in January are about C$ 1,500 on average during January, but can be found for as low as C$ 956.

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 21% on the cost of this flight compared to booking a flight leaving this week. We have found prices from C$ 1,790 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as C$ 2,003.

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

What are the most reliable airlines from Seattle to Incheon?

The top 3 most reliable airlines when flying from Seattle to Incheon are Etihad Airways (79%), Korean Air (70%) and Delta (56%).

COVID Restrictions

View COVID Travel Restrictions for Incheon, South Korea

Do I need a COVID test to fly to Incheon from Seattle?

Information is based on travel restrictions from Seattle/Tacoma Intl to Incheon Intl

Most visitors from Seattle/Tacoma Intl need to provide a negative COVID-19 test result and/or quarantine to enter Incheon Intl.

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 48 hours for RT-PCR (NAAT) and 24 hours for Antigen (quick-test) before departing to Incheon Intl.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering Incheon Intl.

Documents
K-ETA - K-ETA is an electronic travel authorization that visa-free foreign visitors need to obtain before entering the Republic of Korea.


Do I need a test to fly back to Seattle from Incheon?

Returning to Seattle/Tacoma Intl from Incheon Intl

COVID-19 testing requirements
Visitors from Incheon Intl are not required to present a negative COVID-19 PCR test or antigen result upon entering Seattle/Tacoma Intl.

Quarantine requirements
Visitors from Incheon Intl are not required to quarantine after entering Seattle/Tacoma Intl.

Hide COVID Travel Restrictions for Incheon, South Korea

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 61% of flight departures
Morning 6 AM to noon 30% of flight departures
Evening 6 PM to midnight 8% of flight departures
Early morning Midnight to 6 AM 1% of flight 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
8 daily flights
Monday
7 daily flights
Tuesday
4 daily flights
Wednesday
8 daily flights
Thursday
4 daily flights
Friday
8 daily flights
Saturday
5 daily flights
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