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.

$476 Cheap Flights from Seoul Gimpo Intl Airport to State of Washington in 2026

1 adult

0 bags

Find the cheapest flights from Seoul Gimpo Intl Airport to Washington

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:40 am - 2:25 pm

GMP

SEA

22h 45m

1 stop

10:45 am - 11:05 am

SEA

GMP

32h 20m

2 stops

$853ANA

Mon, Jul 6 - Fri, Jul 10

12:40 pm - 2:25 pm

GMP

SEA

17h 45m

1 stop

4:30 pm - 11:05 am

SEA

GMP

26h 35m

1 stop

$867ANA

Fri, May 8 - Mon, May 11

7:40 am - 2:25 pm

GMP

SEA

22h 45m

1 stop

4:30 pm - 11:05 am

SEA

GMP

26h 35m

1 stop

$869ANA

Wed, Sep 23 - Mon, Oct 12

7:40 am - 2:25 pm

GMP

SEA

22h 45m

1 stop

4:30 pm - 11:05 am

SEA

GMP

26h 35m

1 stop

$873ANA

Wed, May 6 - Tue, May 12

7:55 pm - 2:25 pm

GMP

SEA

34h 30m

1 stop

3:45 pm - 11:20 am

SEA

GMP

26h 35m

1 stop

$874ANA

Tue, Oct 13 - Wed, Jan 13

7:40 am - 2:25 pm

GMP

SEA

22h 45m

1 stop

4:30 pm - 6:35 pm

SEA

GMP

34h 05m

1 stop

$875ANA

Mon, Jul 6 - Mon, Jul 13

7:40 am - 6:32 pm

GMP

SEA

26h 52m

2 stops

4:30 pm - 6:35 pm

SEA

GMP

34h 05m

1 stop

$877ANA

Mon, Jun 22 - Sat, Sep 5

7:55 pm - 2:25 pm

GMP

SEA

34h 30m

1 stop

4:30 pm - 11:05 am

SEA

GMP

26h 35m

1 stop

$879ANA

Wed, Sep 30 - Mon, Oct 5

12:05 pm - 4:50 pm

GMP

PDX

20h 45m

2 stops

8:00 am - 9:15 pm

PDX

GMP

21h 15m

2 stops

$1,411Japan Airlines

Tue, Sep 29 - Fri, Oct 2

12:05 pm - 4:50 pm

GMP

PDX

20h 45m

2 stops

10:29 am - 10:40 am

PDX

GMP

32h 11m

2 stops

$1,451Japan Airlines

Mon, Jun 8 - Sun, Jun 21

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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

Jul 6

GMP7:40 amSeoul Gimpo Intl

22h 45m

1 stop

SEA2:25 pmSeattle/Tacoma Intl

Jul 10

SEA10:45 amSeattle/Tacoma Intl

32h 20m

2 stops

GMP11:05 amSeoul Gimpo Intl

$853

ANA

May 8

GMP12:40 pmSeoul Gimpo Intl

17h 45m

1 stop

SEA2:25 pmSeattle/Tacoma Intl

May 11

SEA4:30 pmSeattle/Tacoma Intl

26h 35m

1 stop

GMP11:05 amSeoul Gimpo Intl

$867

ANA

Sep 23

GMP7:40 amSeoul Gimpo Intl

22h 45m

1 stop

SEA2:25 pmSeattle/Tacoma Intl

Oct 12

SEA4:30 pmSeattle/Tacoma Intl

26h 35m

1 stop

GMP11:05 amSeoul Gimpo Intl

$869

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 29

GMP7:15 pmSeoul Gimpo Intl

31h 20m

1 stop

SEA10:35 amSeattle/Tacoma Intl

May 1

SEA5:30 amSeattle/Tacoma Intl

23h 45m

2 stops

GMP9:15 pmSeoul Gimpo Intl

$1,194

Japan Airlines

Apr 28

GMP8:00 amSeoul Gimpo Intl

24h 10m

2 stops

SEA4:10 pmSeattle/Tacoma Intl

May 1

SEA5:30 amSeattle/Tacoma Intl

23h 45m

2 stops

GMP9:15 pmSeoul Gimpo Intl

$1,255

Japan Airlines

Apr 28

GMP8:00 amSeoul Gimpo Intl

18h 35m

1 stop

SEA10:35 amSeattle/Tacoma Intl

May 1

SEA5:30 amSeattle/Tacoma Intl

23h 45m

2 stops

GMP9:15 pmSeoul Gimpo Intl

$1,261

momondo Fare Finder

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

Cheapest round-trip

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Mon 7/6

7:40 am-2:25 pm

1 stop22h 45m

Seattle/Tacoma Intl

Fri 7/10

10:45 am-11:05 am

2 stops32h 20m

$853

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Fri 5/8

12:40 pm-2:25 pm

1 stop17h 45m

Seattle/Tacoma Intl

Mon 5/11

4:30 pm-11:05 am

1 stop26h 35m

$867

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Wed 9/23

7:40 am-2:25 pm

1 stop22h 45m

Seattle/Tacoma Intl

Mon 10/12

4:30 pm-11:05 am

1 stop26h 35m

$869

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Wed 5/6

7:40 am-2:25 pm

1 stop22h 45m

Seattle/Tacoma Intl

Tue 5/12

4:30 pm-11:05 am

1 stop26h 35m

$873

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Tue 10/13

7:55 pm-2:25 pm

1 stop34h 30m

Seattle/Tacoma Intl

Wed 1/13

3:45 pm-11:20 am

1 stop26h 35m

$874

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Mon 7/6

7:40 am-2:25 pm

1 stop22h 45m

Seattle/Tacoma Intl

Mon 7/13

4:30 pm-6:35 pm

1 stop34h 05m

$875

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Mon 6/22

7:40 am-6:32 pm

2 stops26h 52m

Seattle/Tacoma Intl

Sat 9/5

4:30 pm-6:35 pm

1 stop34h 05m

$877

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Wed 9/30

7:55 pm-2:25 pm

1 stop34h 30m

Seattle/Tacoma Intl

Mon 10/5

4:30 pm-11:05 am

1 stop26h 35m

$879

Quickest round-trip

SeoulPortland

GMP - PDX

GMPPDX

Seoul Gimpo Intl

Tue 9/29

12:05 pm-4:50 pm

2 stops20h 45m

Portland

Fri 10/2

8:00 am-9:15 pm

2 stops21h 15m

$1,411

SeoulPortland

GMP - PDX

GMPPDX

Seoul Gimpo Intl

Mon 6/8

12:05 pm-4:50 pm

2 stops20h 45m

Portland

Sun 6/21

10:29 am-10:40 am

2 stops32h 11m

$1,451

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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	18h 35m
Direct flights	None

The fastest flight from Seoul Gimpo Intl Airport to State of Washington takes 18h 35m

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

Frequently asked questions about flying from Seoul Gimpo Intl Airport to Washington

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.