A cityscape with traditional architecture amidst modern skyscrapers, autumn foliage, and a mountainous backdrop.

CA $579 Cheap Flights from Seattle (SEA) to Seoul (SEL)

View CA $579 flight on Thu, Jan 7, 2027

Popular airlines from Seattle-Tacoma International Airport (SEA) to Seoul

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards

    Sign in

  • Cheap Flights from Seattle to Seoul (SEA-SEL)

    Prices were available within the past 7 days and start at CA $579 for one-way flights and CA $1,216 for roundtrip, for the period specified. Prices and availability are subject to change.

    All deals

    One way

    Roundtrip

    Select Cathay Pacific flight, departing Thu, Feb 25 from Seattle to Seoul, returning Thu, Mar 11, priced at CA $1,216 Found 1 day ago

    Thu, Feb 25 - Thu, Mar 11 · SEA · ICN · Roundtrip

    Select Cathay Pacific flight, departing Thu, Feb 25 from Seattle to Seoul, returning Wed, Mar 3, priced at CA $1,217 Found 20 hours ago

    Thu, Feb 25 - Wed, Mar 3 · SEA · ICN · Roundtrip

    Select Cathay Pacific flight, departing Wed, Feb 24 from Seattle to Seoul, returning Mon, Mar 8, priced at CA $1,221 Found 11 hours ago

    Wed, Feb 24 - Mon, Mar 8 · SEA · ICN · Roundtrip

    Select Cathay Pacific flight, departing Mon, Mar 29 from Seattle to Seoul, returning Tue, Apr 13, priced at CA $1,228 Found 1 day ago

    Mon, Mar 29 - Tue, Apr 13 · SEA · ICN · Roundtrip

    Select Cathay Pacific flight, departing Mon, Apr 12 from Seattle to Seoul, returning Mon, Apr 26, priced at CA $1,229 Found 1 day ago

    Mon, Apr 12 - Mon, Apr 26 · SEA · ICN · Roundtrip

    Select Cathay Pacific flight, departing Mon, Apr 5 from Seattle to Seoul, returning Mon, Apr 26, priced at CA $1,252 Found 1 day ago

    Mon, Apr 5 - Mon, Apr 26 · SEA · ICN · Roundtrip

    Select Philippine Airlines flight, departing Mon, Apr 5 from Seattle to Seoul, returning Mon, Apr 26, priced at CA $1,449 Found 1 day ago

    Mon, Apr 5 - Mon, Apr 26 · SEA · ICN · Roundtrip

    Select Air Canada flight, departing Mon, Jan 18 from Seattle to Seoul, returning Wed, Jan 27, priced at CA $1,472 Found 18 hours ago

    Mon, Jan 18 - Wed, Jan 27 · SEA · ICN · Roundtrip

    Select Alaska Airlines flight, departing Thu, Feb 18 from Seattle to Seoul, returning Wed, Mar 3, priced at CA $1,514 Found 3 days ago

    Thu, Feb 18 - Wed, Mar 3 · PAE · ICN · Roundtrip

    Select Korean Air flight, departing Thu, Feb 25 from Seattle to Seoul, returning Thu, Mar 11, priced at CA $1,543 Found 1 day ago

    Thu, Feb 25 - Thu, Mar 11 · SEA · ICN · Roundtrip

    Alternative airports near Seoul

    Prices were available within the past 7 days. Prices and availability are subject to change.

    Select flight to Incheon Intl. ICN. Cheapest option available. Average driving time to city centre is 46 minutes. Flights from CA $1,341

    46 min

    Select flight to Gimpo Intl. GMP. Closest option available. Average driving time to city centre is 20 minutes. Flights from CA $2,553

    20 min

    Find the cheapest month to fly from Seattle (SEA) to Seoul (SEL)

    September is typically the cheapest month to fly

    From CA $1,222 - CA $1,692 per traveller.

    View flights in September

    Insights are based on prices from searches for economy trips of 10 days or less on our sites in the last 12 months. Insights are informative only and current prices may differ.

    Book with confidence

    Seattle to Seoul Flights

    The easy way to book your flights from Seattle to Seoul

    With Expedia, it’s simple to find and book flights to Seoul from Seattle whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 7 airlines that cover this route. There are nonstop flights to SEL-All Airports, too.

    Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Seattle to Seoul today, tomorrow, or this week.

    Save dollars with cheap flights from Seattle - Tacoma Intl., SEA to SEL-All Airports, SEL

    Sort your search results by price to find great deals on your flight from Seattle to Seoul—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Seoul from Seattle currently is just CA $1,216 rising to CA $1,543.

    Here are more money-saving tips:

    • Fly in February when flight prices are normally at their lowest
    • Book about a month to 6 weeks before you travel for the best prices to Seoul
    • Avoid peak season and weekends when flights can cost more
    • Early morning and late-night flights are sometimes cheaper, so try varying your travel times
    • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!

    Reasons to choose Expedia for your flight to Seoul from Seattle

    Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Seoul with Expedia today.

    Frequently Asked Questions

    How much is a flight from Sea-Tac Airport to Seoul (SEL-All Airports)?

    Round-trip flights from Seattle - Tacoma Intl. Airport (SEA) to Seoul (SEL-All Airports) start from CA $1,216. This is based on fares listed within the last 7 days on Expedia for flights departing within the next year — book ASAP to avoid missing out. Prices and availability are subject to change. Additional terms apply.

    Do I need to pay a cancellation fee if I cancel my flight from Seattle - Tacoma Intl. Airport (SEA) to Seoul (SEL-All Airports)?

    Each air carrier has its own set of terms and conditions. If you do decide to cancel, follow the easy instructions on our Customer Service Portal.

    How do I find cheap flights from SEA to Seoul (SEL-All Airports) that have flexible change policies?

    Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Sea-Tac Airport to Seoul (SEL-All Airports) flights, you'll see a "no change fees" filter for you to select.

    How far is the flight from SEA to Seoul (SEL-All Airports)?

    With around 8,400 kilometers separating SeaTac and South Korea, your flight will be a long one. Pack wisely to make your journey more comfortable. Simple things like warm clothing and a quality neck pillow should be in your hand luggage.

    Which airlines fly direct from Sea-Tac Airport to Seoul (SEL-All Airports)?

    A leading airline that services the route from Seattle - Tacoma Intl. Airport (SEA) to Seoul (SEL-All Airports) is Delta Air Lines (DL). It offers 39 flights a month. Korean Air (KE) is another option. It operates 21 flights per month. Between these two airlines, you'll be able to find a good deal from SeaTac to South Korea.

    Are Sea-Tac Airport to Seoul (SEL-All Airports) flight tickets cheaper when they're purchased at the last minute?

    Flight prices change all the time, so not always. While last-minute flight deals between SEA and Seoul (SEL-All Airports) are of course possible, it also makes sense to keep a close eye on prices well before you fly. In fact, some air carriers publish their prices up to a year ahead of the departure date. Expedia is continuously updating the best airfare bargains around, so keep checking back and be ready to lock in your seat when the price is low.

    Travel information

    Origin airportSeattle-Tacoma International Airport
    Destination airportIncheon Intl. Airport
    Distance8,374 km away
    Airlines servingKorean Air, EVA Airways, Cathay Pacific, Alaska Airlines, Air Canada, Philippine Airlines, Delta, China Airlines, United, American Airlines, Singapore Airlines, WestJet, Emirates, Turkish Airlines, Air China, Qatar Airways, Virgin Atlantic, KLM, Lufthansa, All Nippon Airways, Air France, Hainan Airlines, Finnair, Aeromexico, Etihad Airways, Ethiopian Airlines
    Popular airlineKorean Air
    Roundtrip priceCA $1,216
    Average flight time12 hours 3 mins

    Explore a world of travel with Expedia

    *Available to Expedia members.