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Cheap flights from Seoul Gimpo Intl Airport to Washington from $467

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seoul Gimpo Intl Airport to Washington departing on 3/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Seoul Gimpo Intl Airport to Washington

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:10 am - 3:03 pm
GMP
-
SEA
22h 53m2 stops
Multiple Airlines Logo
3:00 pm - 10:25 pm
SEA
-
GMP
39h 25m2 stops
$603Multiple Airlines
Tue, Apr 28 - Tue, May 19
ANA Logo
12:25 pm - 1:20 pm
GMP
-
SEA
17h 55m1 stop
ANA Logo
9:55 am - 10:30 pm
SEA
-
GMP
19h 35m2 stops
$839ANA
Fri, Jan 16 - Thu, Jan 29
ANA Logo
12:25 pm - 1:20 pm
GMP
-
SEA
17h 55m1 stop
ANA Logo
9:55 am - 10:30 pm
SEA
-
GMP
19h 35m2 stops
$849ANA
Fri, Jan 16 - Thu, Jan 29
ANA Logo
12:25 pm - 1:20 pm
GMP
-
SEA
17h 55m1 stop
ANA Logo
3:45 pm - 11:20 am
SEA
-
GMP
26h 35m1 stop
$873ANA
Fri, Jan 16 - Thu, Jan 29
ANA Logo
12:25 pm - 1:20 pm
GMP
-
SEA
17h 55m1 stop
ANA Logo
3:45 pm - 11:20 am
SEA
-
GMP
26h 35m1 stop
$876ANA
Fri, Jan 16 - Thu, Jan 29
ANA Logo
7:50 pm - 1:20 pm
GMP
-
SEA
34h 30m1 stop
ANA Logo
3:45 pm - 11:20 am
SEA
-
GMP
26h 35m1 stop
$882ANA
Sun, Feb 8 - Tue, Feb 17
Japan Airlines Logo
12:05 pm - 10:31 pm
GMP
-
PDX
26h 26m2 stops
Japan Airlines Logo
7:05 am - 9:50 pm
PDX
-
GMP
22h 45m2 stops
$1,378Japan Airlines
Tue, Apr 7 - Tue, Apr 21
Japan Airlines Logo
7:40 pm - 4:50 pm
GMP
-
PDX
38h 10m2 stops
Japan Airlines Logo
7:20 am - 6:20 pm
PDX
-
GMP
42h 00m2 stops
$1,407Japan Airlines
Tue, Feb 3 - Thu, Feb 5
Japan Airlines Logo
12:05 pm - 10:31 pm
GMP
-
PDX
26h 26m2 stops
Japan Airlines Logo
7:05 am - 9:50 pm
PDX
-
GMP
22h 45m2 stops
$1,445Japan Airlines
Tue, Apr 7 - Tue, Apr 21
Multiple Airlines Logo
7:50 pm - 6:30 pm
GMP
-
PDX
39h 40m2 stops
Multiple Airlines Logo
7:05 am - 10:05 pm
PDX
-
GMP
22h 00m2 stops
$1,640Multiple Airlines
Sun, Feb 8 - Sun, Feb 15

ANA flights from Seoul Gimpo Intl Airport to State of Washington

Our best ANA deals on Seoul Gimpo Intl Airport to State of Washington flight tickets
ANA
Jan 16
GMP12:25 pmSeoul Gimpo Intl
17h 55m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
Jan 29
SEA9:55 amSeattle/Tacoma Intl
19h 35m
2 stops
GMP10:30 pmSeoul Gimpo Intl
$839
Find similar
ANA
Jan 16
GMP12:25 pmSeoul Gimpo Intl
17h 55m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
Jan 29
SEA9:55 amSeattle/Tacoma Intl
19h 35m
2 stops
GMP10:30 pmSeoul Gimpo Intl
$849
Find similar
ANA
Jan 16
GMP12:25 pmSeoul Gimpo Intl
17h 55m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
Jan 29
SEA3:45 pmSeattle/Tacoma Intl
26h 35m
1 stop
GMP11:20 amSeoul Gimpo Intl
$873
Find similar

Japan Airlines flights from Seoul Gimpo Intl Airport to State of Washington

Our best Japan Airlines deals on Seoul Gimpo Intl Airport to State of Washington flight tickets
Japan Airlines
Apr 7
GMP12:05 pmSeoul Gimpo Intl
26h 26m
2 stops
PDX10:31 pmPortland
Apr 21
PDX7:05 amPortland
22h 45m
2 stops
GMP9:50 pmSeoul Gimpo Intl
$1,378
Find similar
Japan Airlines
Feb 3
GMP7:40 pmSeoul Gimpo Intl
38h 10m
2 stops
PDX4:50 pmPortland
Feb 5
PDX7:20 amPortland
42h 00m
2 stops
GMP6:20 pmSeoul Gimpo Intl
$1,407
Find similar
Japan Airlines
Apr 7
GMP12:05 pmSeoul Gimpo Intl
26h 26m
2 stops
PDX10:31 pmPortland
Apr 21
PDX7:05 amPortland
22h 45m
2 stops
GMP9:50 pmSeoul Gimpo Intl
$1,445
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seoul Gimpo Intl Airport to State of Washington that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 27, 2025.
Use the filters below to find and compare flights from Seoul Gimpo Intl Airport to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Tue 4/28

8:10 am-3:03 pm

2 stops22h 53m

Seattle/Tacoma Intl

Tue 5/19

3:00 pm-10:25 pm

2 stops39h 25m

$603

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Fri 1/16

12:25 pm-1:20 pm

1 stop17h 55m

Seattle/Tacoma Intl

Thu 1/29

9:55 am-10:30 pm

2 stops19h 35m

$839

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Fri 1/16

12:25 pm-1:20 pm

1 stop17h 55m

Seattle/Tacoma Intl

Thu 1/29

9:55 am-10:30 pm

2 stops19h 35m

$849

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Fri 1/16

12:25 pm-1:20 pm

1 stop17h 55m

Seattle/Tacoma Intl

Thu 1/29

3:45 pm-11:20 am

1 stop26h 35m

$873

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Fri 1/16

12:25 pm-1:20 pm

1 stop17h 55m

Seattle/Tacoma Intl

Thu 1/29

3:45 pm-11:20 am

1 stop26h 35m

$876

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Sun 2/8

7:50 pm-1:20 pm

1 stop34h 30m

Seattle/Tacoma Intl

Tue 2/17

3:45 pm-11:20 am

1 stop26h 35m

$882

SeoulPortland

GMP - PDX

GMPPDX

Seoul Gimpo Intl

Tue 4/7

12:05 pm-10:31 pm

2 stops26h 26m

Portland

Tue 4/21

7:05 am-9:50 pm

2 stops22h 45m

$1,378

SeoulPortland

GMP - PDX

GMPPDX

Seoul Gimpo Intl

Tue 2/3

7:40 pm-4:50 pm

2 stops38h 10m

Portland

Thu 2/5

7:20 am-6:20 pm

2 stops42h 00m

$1,407

SeoulPortland

GMP - PDX

GMPPDX

Seoul Gimpo Intl

Tue 4/7

12:05 pm-10:31 pm

2 stops26h 26m

Portland

Tue 4/21

7:05 am-9:50 pm

2 stops22h 45m

$1,445

SeoulPortland

GMP - PDX

GMPPDX

Seoul Gimpo Intl

Sun 2/8

7:50 pm-6:30 pm

2 stops39h 40m

Portland

Sun 2/15

7:05 am-10:05 pm

2 stops22h 00m

$1,640

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington from

How to get the cheapest flight ticket from Seoul Gimpo Intl Airport to State of Washington

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Seoul Gimpo Intl to Washington?

Japan Airlines is the most popular carrier operating from Seoul Gimpo Intl to Washington

Cheap Seoul Gimpo Intl Airport to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seoul Gimpo Intl Airport to State of Washington

Fastest flight time

17h 45m

Direct flights

None
The fastest flight from Seoul Gimpo Intl Airport to State of Washington takes 17h 45m
There are no direct flights from Seoul Gimpo Intl Airport to State of Washington. There are no popular flight routes from Seoul Gimpo Intl Airport to State of Washington.
Search flight deals

  • When did momondo last update prices for flights from Seoul Gimpo Intl Airport to Washington?

    Prices for flights from Seoul Gimpo Intl Airport to Washington were last updated today.

  • How old do you have to be to fly from Seoul Gimpo Intl Airport to Washington?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seoul Gimpo Intl Airport to Washington.

  • What documentation or ID do you need to fly to Washington?

    The necessary travel and health documents for your Washington trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Seoul to Washington?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seoul to Washington. momondo saves you time and could save you money on your trip.

Can I find flights from Seoul to Washington with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Seoul to Washington flights to just show those with flexible booking policies.

How can momondo help me find flights from Seoul to Washington?

momondo provides multiple filters to help you find the best flight to Washington from Seoul. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Seoul to Washington right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Seoul to Washington flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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