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₩563,200 Cheap Flights from Seattle (SEA) to Seoul (SEL)

View ₩563,200 flight on Wed, Aug 12, 2026Opens in a new window

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

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Cheap Flights from Seattle to Seoul (SEA-SEL)

Prices were available within the past 7 days and start at ₩563,200 for one-way flights and ₩1,256,300 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

WestJet
Mon, Sep 7 - Sun, Sep 20
SEA
Seattle
ICN
Seoul
₩1,256,300 Roundtrip, found 3 days ago
₩1,256,300
Roundtrip
found 3 days ago
Select WestJet flight, departing Mon, Sep 7 from Seattle to Seoul, returning Sun, Sep 20, priced at ₩1,256,300 found 3 days ago
Hainan Airlines
Thu, Sep 10 - Wed, Sep 16
SEA
Seattle
ICN
Seoul
₩1,290,100 Roundtrip, found 1 hour ago
₩1,290,100
Roundtrip
found 1 hour ago
Select Hainan Airlines flight, departing Thu, Sep 10 from Seattle to Seoul, returning Wed, Sep 16, priced at ₩1,290,100 found 1 hour ago
Cathay Pacific
Mon, Oct 26 - Wed, Feb 3
SEA
Seattle
ICN
Seoul
₩1,343,000 Roundtrip, found 5 hours ago
₩1,343,000
Roundtrip
found 5 hours ago
Select Cathay Pacific flight, departing Mon, Oct 26 from Seattle to Seoul, returning Wed, Feb 3, priced at ₩1,343,000 found 5 hours ago
China Airlines
Fri, Sep 18 - Thu, Oct 1
SEA
Seattle
ICN
Seoul
₩1,414,000 Roundtrip, just found
₩1,414,000
Roundtrip
just found
Select China Airlines flight, departing Fri, Sep 18 from Seattle to Seoul, returning Thu, Oct 1, priced at ₩1,414,000 just found
Qatar Airways
Sun, Sep 6 - Fri, Oct 9
SEA
Seattle
ICN
Seoul
₩1,487,600 Roundtrip, found 9 hours ago
₩1,487,600
Roundtrip
found 9 hours ago
Select Qatar Airways flight, departing Sun, Sep 6 from Seattle to Seoul, returning Fri, Oct 9, priced at ₩1,487,600 found 9 hours ago
EVA Airways
Mon, Sep 7 - Wed, Sep 9
SEA
Seattle
ICN
Seoul
₩1,503,900 Roundtrip, found 1 hour ago
₩1,503,900
Roundtrip
found 1 hour ago
Select EVA Airways flight, departing Mon, Sep 7 from Seattle to Seoul, returning Wed, Sep 9, priced at ₩1,503,900 found 1 hour ago
Philippine Airlines
Mon, Jan 18 - Wed, Feb 10
SEA
Seattle
ICN
Seoul
₩1,611,300 Roundtrip, found 20 hours ago
₩1,611,300
Roundtrip
found 20 hours ago
Select Philippine Airlines flight, departing Mon, Jan 18 from Seattle to Seoul, returning Wed, Feb 10, priced at ₩1,611,300 found 20 hours ago
EVA Airways
Fri, Jan 15 - Fri, Jan 29
SEA
Seattle
GMP
Seoul
₩1,617,700 Roundtrip, found 1 day ago
₩1,617,700
Roundtrip
found 1 day ago
Select EVA Airways flight, departing Fri, Jan 15 from Seattle to Seoul, returning Fri, Jan 29, priced at ₩1,617,700 found 1 day ago
Turkish Airlines
Mon, Jan 25 - Fri, Jan 29
SEA
Seattle
ICN
Seoul
₩1,680,700 Roundtrip, found 15 hours ago
₩1,680,700
Roundtrip
found 15 hours ago
Select Turkish Airlines flight, departing Mon, Jan 25 from Seattle to Seoul, returning Fri, Jan 29, priced at ₩1,680,700 found 15 hours ago
Alaska Airlines
Thu, Sep 10 - Fri, Sep 11
SEA
Seattle
ICN
Seoul
₩1,697,100 Roundtrip, found 1 hour ago
₩1,697,100
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Thu, Sep 10 from Seattle to Seoul, returning Fri, Sep 11, priced at ₩1,697,100 found 1 hour ago

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 center is 47 minutes. Flights from ₩1,681,800
ICN
Incheon Intl.
Cheapest
Average driving time to city center47 min
Flights from ₩1,681,800

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 ₩1,256,300. 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 airport
Seattle - Tacoma Intl.
Destination airport
Incheon Intl.
Roundtrip price
₩1,256,300
Distance
8326 km

Book with confidence

Seattle to Incheon Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Seattle to Incheon will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Incheon.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with SEA to SEL flights that won’t make your bank account wince. Ready to temporarily leave behind Seattle for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to SEL with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Seattle to Incheon Flights
*Available to Expedia members.