₩829,400 Cheap Flights from Seoul (GMP) to Seattle (SEA)

View ₩829,400 flight on Sat, Sep 27, 2025Opens in a new window

Popular airlines from Gimpo Intl. Airport (GMP) to Seattle-Tacoma International Airport (SEA)

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 40% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Seoul to Seattle (GMP-SEA)

Prices were available within the past 7 days and start at ₩829,400 for one-way flights and ₩1,257,800 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

All Nippon Airways
Wed, Dec 17 - Mon, Jan 12
GMP
Seoul
SEA
Seattle
₩1,257,800 Roundtrip, found 22 hours ago
₩1,257,800
Roundtrip
found 22 hours ago
Select All Nippon Airways flight, departing Wed, Dec 17 from Seoul to Seattle, returning Mon, Jan 12, priced at ₩1,257,800 found 22 hours ago
All Nippon Airways
Fri, Nov 21 - Tue, Nov 25
GMP
Seoul
SEA
Seattle
₩1,259,300 Roundtrip, found 5 days ago
₩1,259,300
Roundtrip
found 5 days ago
Select All Nippon Airways flight, departing Fri, Nov 21 from Seoul to Seattle, returning Tue, Nov 25, priced at ₩1,259,300 found 5 days ago
All Nippon Airways
Thu, Nov 27 - Tue, Dec 2
GMP
Seoul
SEA
Seattle
₩1,288,800 Roundtrip, found 6 days ago
₩1,288,800
Roundtrip
found 6 days ago
Select All Nippon Airways flight, departing Thu, Nov 27 from Seoul to Seattle, returning Tue, Dec 2, priced at ₩1,288,800 found 6 days ago
All Nippon Airways
Thu, Nov 27 - Tue, Dec 2
GMP
Seoul
SEA
Seattle
₩1,300,000 Roundtrip, found 6 days ago
₩1,300,000
Roundtrip
found 6 days ago
Select All Nippon Airways flight, departing Thu, Nov 27 from Seoul to Seattle, returning Tue, Dec 2, priced at ₩1,300,000 found 6 days ago
All Nippon Airways
Fri, Nov 21 - Tue, Nov 25
GMP
Seoul
SEA
Seattle
₩1,300,500 Roundtrip, found 5 days ago
₩1,300,500
Roundtrip
found 5 days ago
Select All Nippon Airways flight, departing Fri, Nov 21 from Seoul to Seattle, returning Tue, Nov 25, priced at ₩1,300,500 found 5 days ago
EVA Airways
Fri, Oct 24 - Fri, Oct 31
GMP
Seoul
SEA
Seattle
₩1,322,300 Roundtrip, found 3 days ago
₩1,322,300
Roundtrip
found 3 days ago
Select EVA Airways flight, departing Fri, Oct 24 from Seoul to Seattle, returning Fri, Oct 31, priced at ₩1,322,300 found 3 days ago
All Nippon Airways
Fri, Nov 21 - Tue, Nov 25
GMP
Seoul
SEA
Seattle
₩1,334,300 Roundtrip, found 5 days ago
₩1,334,300
Roundtrip
found 5 days ago
Select All Nippon Airways flight, departing Fri, Nov 21 from Seoul to Seattle, returning Tue, Nov 25, priced at ₩1,334,300 found 5 days ago
All Nippon Airways
Thu, Oct 9 - Mon, Oct 20
GMP
Seoul
SEA
Seattle
₩1,362,800 Roundtrip, found 20 hours ago
₩1,362,800
Roundtrip
found 20 hours ago
Select All Nippon Airways flight, departing Thu, Oct 9 from Seoul to Seattle, returning Mon, Oct 20, priced at ₩1,362,800 found 20 hours ago
All Nippon Airways
Sat, Dec 13 - Thu, Jan 8
GMP
Seoul
SEA
Seattle
₩1,363,800 Roundtrip, found 6 days ago
₩1,363,800
Roundtrip
found 6 days ago
Select All Nippon Airways flight, departing Sat, Dec 13 from Seoul to Seattle, returning Thu, Jan 8, priced at ₩1,363,800 found 6 days ago
Japan Airlines
Fri, Oct 24 - Thu, Oct 30
GMP
Seoul
SEA
Seattle
₩2,282,400 Roundtrip, found 2 days ago
₩2,282,400
Roundtrip
found 2 days ago
Select Japan Airlines flight, departing Fri, Oct 24 from Seoul to Seattle, returning Thu, Oct 30, priced at ₩2,282,400 found 2 days ago
Flights from Seoul (GMP) to Seattle (SEA)
Origin airport
Gimpo Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
All Nippon Airways
Roundtrip price
₩1,257,800
Distance
8297 km

Seoul to Seattle 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 Seoul to Seattle 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 Seattle.

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 GMP to SEA flights that won’t make your bank account wince. Ready to temporarily leave behind Seoul 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 SEA 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.

Frequently asked questions

How much is a flight from Gimpo Intl. Airport (GMP) to Seattle - Tacoma Intl. Airport (SEA)?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price advertised for a round-trip journey from Gimpo Intl. Airport (GMP) to Seattle - Tacoma Intl. Airport (SEA) was ₩1,257,800. Great fares don't last forever, so book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Gimpo Intl. Airport (GMP) to SEA?
Most flights can be canceled online, but each airline has different terms and conditions. If you do have to cancel your flight, visit our Customer Service Portal and follow the instructions.
How do I find cheap flights from Gimpo Airport to Sea-Tac Airport 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 Gimpo Airport to SEA flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Gimpo Intl. Airport (GMP) to SEA?
With a flight distance of 8,400 kilometers from Gimpo Airport to SEA, this is a long-haul journey. Remember to keep well hydrated and take a short walk down the aisle every now and then.
Which airlines fly direct from Gimpo Airport to Seattle - Tacoma Intl. Airport (SEA)?
There are no direct flights, so you'll have to make at least one stop between GMP and Seattle - Tacoma Intl. Airport (SEA). Make the most of the layover time to stretch your legs and enjoy some personal space.
Are Gimpo Airport to Seattle - Tacoma Intl. Airport (SEA) flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can occasionally pick up a bargain, with some of the cheapest fares from GMP to Sea-Tac Airport surfacing a few weeks before the departure date. If you'd rather book ahead of time, Expedia compares and updates the best flight deals continuously — as early as 12 months in advance in some cases. It depends on the carrier though, as not all airlines publish prices so far in advance.

Explore a world of travel with Expedia

Seoul nearby Airports

Seoul

Incheon Intl. to Seattle
₩475,900
*Available to Expedia members.