Find flights
Deals
Insights
When to book
FAQs & Tips
Direct Flights
Airlines

SEA - ICN

Find cheap flights from Seattle to Incheon

1 adult
0 bags
Thu 30/5
Thu 6/6

Search hundreds of travel sites at once for deals on flights to Incheon

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Incheon, 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 Incheon, as well as popular online travel agencies
In the last 7 days, travellers have searched 44,052,950 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights from Seattle to Incheon Intl - Travel Insights & Trends

Get data-powered insights and trends into flights from Seattle to Incheon Intl 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 Incheon Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Seattle to Incheon Intl Airport, 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 Incheon Intl Airport is February, where tickets cost C$ 1,652 on average. On the other hand, the most expensive months are December and June, where the average cost of tickets is C$ 2,570 and C$ 2,294 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Seattle to Incheon Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Seattle to Incheon Intl Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 73 days before departure.

Which airlines fly most frequently between Seattle and Seoul Incheon Airport?

Korean Air connects Seattle to Seoul Incheon Airport with up to 2 flights per day. Asiana Airlines also offers 1 flight per day, while Delta follows with 1 flight per day.

Which airlines fly direct between Seattle and Incheon Intl Airport?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Seattle to Incheon Intl Airport.
There are 3 airlines that fly direct from Seattle to Incheon Intl Airport. They are: Asiana Airlines, Delta and Korean Air. The cheapest price of all airlines flying this route was found with Korean Air at C$ 1,541. On average, the best prices for this route can be found at Korean Air.

How many flights are there between Seattle and Incheon Intl Airport per day?

Each day, there are 4 nonstop flights that take off from Seattle and land in Incheon Intl Airport, with an average flight time of 11h 42m. The most common departure time is 1:00 p.m. and most flights take off in the afternoon. Each week, there are 28 flights and there are the same amount of flights each day 4.

Which cabin class options are there for flights between Seattle and Incheon Intl Airport?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 3 cabin class options for the route. These are Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

What’s the earliest departure time from Seattle to Seoul Incheon Airport?

Early birds can take the earliest flight from Seattle at 12:25 pm and will be landing in Incheon Intl Airport at 4:30 pm.

What’s the latest departure time from Seattle to Seoul Incheon Airport?

If you prefer to fly at night, the latest flight from Seattle to Incheon Intl Airport jets off at 2:20 pm and lands at 5:45 pm.

Good to know

Low season

January

High season

June
Best time to beat the crowds (8% less expensive on average)
Most popular time to fly (19% more expensive on average)

When to book flights from Seattle to Incheon Intl

Are your dates flexible? Find out the best times to travel from Seattle to Incheon Intl 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 Seattle to Incheon flights

  • Which is the best way to get downtown from Incheon International Airport (ICN)?

    The city center of Incheon lies approximately 13.7 miles from Incheon International Airport (ICN). Cheongna Bus Corporation runs a bus between the two destinations, departing every 20min, and arriving after about reaching there in 44 minutes.

  • Where can I change currency at Incheon International Airport (ICN)?

    You won’t have problems changing your dollars into South Korean won once you land at the Incheon International Airport from SEA. Korea Exchange Bank operates several currency booths in the arrival hall for your convenience.

  • Are there services for persons with limited mobility at Incheon International Airport (ICN)?

    ICN provides several amenities to cater to the needs of disabled persons and those with limited mobility, including senior citizens, children, and pregnant women. You can request wheelchairs and strollers at no cost. Furthermore, each terminal has at least one wheelchair-accessible bathroom.

  • Are there car rentals at Incheon International Airport (ICN)?

    Nothing beats the convenience of exploring the city of Incheon in a car. To this end, you won’t miss car hire agencies at this establishment. KT Kumho rent-a-car and AJ Rentacar run their desks on the first floor, public area of ICN, adjacent to the 2-3 and 13-14 exits.

  • Which airlines offer Wi-Fi service onboard planes from Seattle to Seoul Incheon Airport?

    Asiana Airlines, Japan Airlines, Delta, EVA Air, and Alaska Airlines offer inflight Wi-Fi service on the Seattle to Seoul Incheon Airport flight route.

  • Which aircraft models fly most regularly from Seattle to Seoul Incheon Airport?

    The Airbus A330-900neo is the aircraft model that flies most regularly on the Seattle to Seoul Incheon Airport flight route.

  • Which airline alliances offer flights from Seattle to Seoul Incheon Airport?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Seattle and Seoul Incheon Airport, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Seattle to Seoul Incheon Airport?

    There are direct flights from Seattle to Seoul Incheon Airport on a daily basis.

  • How does KAYAK find such low prices on flights from Seattle to Seoul Incheon Airport?

    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 Seoul Incheon Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Seoul Incheon Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seoul Incheon Airport from Seattle is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Seoul Incheon Airport?

    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 Seoul Incheon Airport with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Seoul Incheon Airport?

    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 Seoul Incheon Airport from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from Seattle to Incheon

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 1,344 or less round-trip.
  • You’ll find several hotels within easy reach of the Seattle-Tacoma International Airport (SEA). This makes it convenient for travelers with scheduled early morning flights to enjoy hassle-free travel to the airport. A night at the Residence Inn by Marriott Seattle Sea-Tac Airport guarantees you a courtesy shuttle to the terminal in time for your departure.
  • SEA has one Main Terminal with 4 concourses and two satellite buildings: North Satellite Terminal and South Satellite Terminal. Movement from Concourse A to B, and to the South Satellite Terminal is via the blue line south train loop adjacent to gate A4. To get to Concourse C and D, hop onto the yellow line train.
  • Seattle-Tacoma International Airport (SEA) features two lounges situated in Concourse A and South Satellite. Members and anyone with a registered card get unrestricted access to these amenities. You’ll enjoy priority clearance at the security desk as part of the fast lane program. Still, Economy Class travelers can access these suites at a reduced cost. Typically, lounges open three hours before the scheduled flight departure.
  • Several airlines operating between Seattle and Incheon allow passengers to bring their pets on board. With Korean Air, you can board with your four-legged friend like a dog into the cabin. Remember to bring the pet’s valid medical certificate and restrain them in their cages throughout the voyage. Also, it might be best if you checked with your airline regarding the pet policy at the Korean airport.
  • Mothers and the littlest family members will be glad to know that Seattle-Tacoma International Airport (SEA) features lactation rooms at their disposal. In case you want to pump or breastfeed in privacy, locate these suites in Concourse D on the lower level of D Annex, or Concourse N on the Mezzanine level. They are equipped with comfy chairs, sinks, and power sockets.
See more tips

Prefer to fly non-stop from Seattle to Seoul Incheon Airport?

Find which airlines fly direct from Seattle/Tacoma Intl to Incheon Intl, which days they fly and book direct flights.

Nonstop departures

Seattle/Tacoma Intl to Incheon Intl

Monday

Asiana Airlines, Delta, Etihad Airways, +4 more

Asiana Airlines, Delta, +5 more

Tuesday

Asiana Airlines, Delta, Etihad Airways, +4 more

Asiana Airlines, Delta, +5 more

Wednesday

Asiana Airlines, Delta, Etihad Airways, +4 more

Asiana Airlines, Delta, +5 more

Thursday

Asiana Airlines, Delta, Etihad Airways, +4 more

Asiana Airlines, Delta, +5 more

Friday

Asiana Airlines, Delta, Etihad Airways, +4 more

Asiana Airlines, Delta, +5 more

Saturday

Asiana Airlines, Delta, Etihad Airways, +4 more

Asiana Airlines, Delta, +5 more

Sunday

Asiana Airlines, Delta, Etihad Airways, +4 more

Asiana Airlines, Delta, +5 more

See more nonstop flights

Nonstop returns

Incheon Intl to Seattle/Tacoma Intl

Monday

Asiana Airlines, Delta, Etihad Airways, +4 more

Asiana Airlines, Delta, +5 more

Tuesday

Asiana Airlines, Delta, Etihad Airways, +4 more

Asiana Airlines, Delta, +5 more

Wednesday

Asiana Airlines, Delta, Etihad Airways, +4 more

Asiana Airlines, Delta, +5 more

Thursday

Asiana Airlines, Delta, Etihad Airways, +4 more

Asiana Airlines, Delta, +5 more

Friday

Asiana Airlines, Delta, Etihad Airways, +4 more

Asiana Airlines, Delta, +5 more

Saturday

Asiana Airlines, Delta, Etihad Airways, +4 more

Asiana Airlines, Delta, +5 more

Sunday

Asiana Airlines, Delta, Etihad Airways, +4 more

Asiana Airlines, Delta, +5 more

See more nonstop flights
See more nonstop flights

Top airline flying from Seattle to Incheon Intl

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Incheon. 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 Incheon Intl? 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.
8.5
Korean AirOverall score based on 1186 reviews
8.6Boarding
8.2Food
8.8Crew
8.3Comfort
8.2Entertainment
Airline reviews

The flight crews were extremely professional, helpful, and courteous. Departure and arrival times were accurate. No delay. I will use K airline again. Thanks

10.0 ExcellentAnonymous, Apr. 2024IAD - ICN
Read more about Korean Air reviews

The flight crews were extremely professional, helpful, and courteous. Departure and arrival times were accurate. No delay. I will use K airline again. Thanks

We were seated at the back and that was very uncomfortable for me with the turbulence we experienced on our way to Chicago.

I enjoyed flying on Korean Air. The service was great and the food was yummy. They served white fish.

I enjoyed flying on Korean Air. The service was great and the food was yummy, especially the bibimbap and cold spicy noodles. The only thing that bummed me out on this red-eye flight was that my seat did not properly recline so I was not able to sleep.

On time and flight crew are always so happy to help and always smiling unlike other airlines.

Great crew, decent food Charging plugs were broken on both seats next to me. Only the USB port was available, and that charges, very, very slowly. Seat was also broken, it would not lock into position when reclining.

Korean Air had great service and the Bibimbap dish was the best airplane food I’ve ever had. It was a long flight so in between the two meals they served customers could get Shin ramen. The flight attendants let my children use a pair of nice headphones for the flight and had earbuds and slippers for all the adults. The flight was long but the time passed by relatively quickly because they have many great shows in their entertainment TV. I watched the BTS Love Yourself and Speak Yourself concerts 💜

Stewardess are nice. Food could have been better and should have a better dessert. They do not offer scotch or beer. You have to ask for it. I also was not happy that you do not serve ginger ale and or cranberry juice. This is my first time that an international flight do not have this. I go home overseas every year and when I travel through ANA, Delta, Qatar, JAL, Asiana Air, United Air. they all serve this two very famous drink. You do not have a great snack tray.

You did not put me on a Korean Air flight! so I do not have nothing to say

Wonderful cabin crew!!!!! Food was poor, in flight entertainment was just ok. They need to serve more water on a 15 hour flight--we were dehydrated and kept asking for water.

Book cheap flights from Seattle to Incheon

One-way flight deals

multi-stopMultiple Airlines
13469 kmSEA-ICN

Search by stops

Seattle - Seoul Incheon Airport Flights

Departure:

Seattle (SEA)United States

Destination:

Incheon (ICN)South Korea

Cabin classes:

C$ 1,135

Browse origins:

  • Flights » 
  • Seattle

Browse destinations:

  • Flights » 
  • Worldwide » 
  • Seoul Incheon Airport