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.

$435 Cheap Flights from Seoul Gimpo Intl Airport to State of Washington in 2026

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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.

8:10 am - 3:05 pm

GMP

SEA

22h 55m

2 stops

5:40 am - 1:10 pm

SEA

GMP

39h 30m

2 stops

$567Multiple Airlines

Mon, Apr 27 - Wed, May 27

8:10 am - 10:50 pm

GMP

SEA

30h 40m

2 stops

7:20 pm - 1:10 pm

SEA

GMP

49h 50m

2 stops

$571Multiple Airlines

Tue, Apr 28 - Thu, May 28

8:10 am - 6:32 pm

GMP

SEA

26h 22m

2 stops

9:55 am - 1:10 pm

SEA

GMP

35h 15m

2 stops

$763Multiple Airlines

Tue, Jun 30 - Wed, Jul 15

8:10 am - 10:22 pm

GMP

SEA

30h 12m

2 stops

9:55 am - 1:10 pm

SEA

GMP

35h 15m

2 stops

$771Multiple Airlines

Tue, Jun 30 - Wed, Jul 15

7:40 am - 2:25 pm

GMP

SEA

22h 45m

1 stop

9:55 am - 10:20 pm

SEA

GMP

20h 25m

2 stops

$889ANA

Wed, Jul 1 - Tue, Jul 28

7:40 am - 2:25 pm

GMP

SEA

22h 45m

1 stop

4:30 pm - 11:05 am

SEA

GMP

26h 35m

1 stop

$908ANA

Tue, Jul 7 - Wed, Sep 9

12:40 pm - 2:25 pm

GMP

SEA

17h 45m

1 stop

4:30 pm - 6:35 pm

SEA

GMP

34h 05m

1 stop

$910ANA

Wed, Jun 17 - Wed, Jul 29

8:00 am - 9:35 pm

GMP

PDX

29h 35m

2 stops

7:05 am - 9:15 pm

PDX

GMP

22h 10m

2 stops

$1,227Japan Airlines

Tue, Apr 7 - Tue, Apr 21

12:05 pm - 4:30 pm

GMP

PDX

20h 25m

2 stops

7:05 am - 9:15 pm

PDX

GMP

22h 10m

2 stops

$1,282Japan Airlines

Tue, Apr 7 - Tue, Apr 21

12:05 pm - 4:30 pm

GMP

PDX

20h 25m

2 stops

7:05 am - 9:15 pm

PDX

GMP

22h 10m

2 stops

$1,291Japan Airlines

Tue, Apr 7 - Tue, Apr 21

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 1

GMP7:40 amSeoul Gimpo Intl

22h 45m

1 stop

SEA2:25 pmSeattle/Tacoma Intl

Jul 28

SEA9:55 amSeattle/Tacoma Intl

20h 25m

2 stops

GMP10:20 pmSeoul Gimpo Intl

$889

ANA

Jul 7

GMP7:55 pmSeoul Gimpo Intl

34h 30m

1 stop

SEA2:25 pmSeattle/Tacoma Intl

Jul 22

SEA4:30 pmSeattle/Tacoma Intl

34h 05m

1 stop

GMP6:35 pmSeoul Gimpo Intl

$908

ANA

Jun 17

GMP12:40 pmSeoul Gimpo Intl

17h 45m

1 stop

SEA2:25 pmSeattle/Tacoma Intl

Jul 29

SEA4:30 pmSeattle/Tacoma Intl

34h 05m

1 stop

GMP6:35 pmSeoul Gimpo Intl

$910

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

GMP8:00 amSeoul Gimpo Intl

29h 35m

2 stops

PDX9:35 pmPortland

Apr 21

PDX7:05 amPortland

22h 10m

2 stops

GMP9:15 pmSeoul Gimpo Intl

$1,227

Japan Airlines

Mar 3

GMP12:05 pmSeoul Gimpo Intl

14h 50m

1 stop

SEA9:55 amSeattle/Tacoma Intl

Mar 9

SEA1:30 pmSeattle/Tacoma Intl

16h 35m

1 stop

GMP10:05 pmSeoul Gimpo Intl

$1,248

Japan Airlines

Mar 3

GMP12:05 pmSeoul Gimpo Intl

14h 50m

1 stop

SEA9:55 amSeattle/Tacoma Intl

Mar 9

SEA8:15 amSeattle/Tacoma Intl

21h 50m

2 stops

GMP10:05 pmSeoul Gimpo Intl

$1,254

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

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Mon 4/27

8:10 am-3:05 pm

2 stops22h 55m

Seattle/Tacoma Intl

Wed 5/27

5:40 am-1:10 pm

2 stops39h 30m

$567

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Tue 4/28

8:10 am-10:50 pm

2 stops30h 40m

Seattle/Tacoma Intl

Thu 5/28

7:20 pm-1:10 pm

2 stops49h 50m

$571

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Tue 6/30

8:10 am-6:32 pm

2 stops26h 22m

Seattle/Tacoma Intl

Wed 7/15

9:55 am-1:10 pm

2 stops35h 15m

$763

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Tue 6/30

8:10 am-10:22 pm

2 stops30h 12m

Seattle/Tacoma Intl

Wed 7/15

9:55 am-1:10 pm

2 stops35h 15m

$771

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Wed 7/1

7:40 am-2:25 pm

1 stop22h 45m

Seattle/Tacoma Intl

Tue 7/28

9:55 am-10:20 pm

2 stops20h 25m

$889

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Tue 7/7

7:40 am-2:25 pm

1 stop22h 45m

Seattle/Tacoma Intl

Wed 9/9

4:30 pm-11:05 am

1 stop26h 35m

$908

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Wed 6/17

12:40 pm-2:25 pm

1 stop17h 45m

Seattle/Tacoma Intl

Wed 7/29

4:30 pm-6:35 pm

1 stop34h 05m

$910

SeoulPortland

GMP - PDX

GMPPDX

Seoul Gimpo Intl

Tue 4/7

8:00 am-9:35 pm

2 stops29h 35m

Portland

Tue 4/21

7:05 am-9:15 pm

2 stops22h 10m

$1,227

SeoulPortland

GMP - PDX

GMPPDX

Seoul Gimpo Intl

Tue 4/7

12:05 pm-4:30 pm

2 stops20h 25m

Portland

Tue 4/21

7:05 am-9:15 pm

2 stops22h 10m

$1,282

SeoulPortland

GMP - PDX

GMPPDX

Seoul Gimpo Intl

Tue 4/7

12:05 pm-4:30 pm

2 stops20h 25m

Portland

Tue 4/21

7:05 am-9:15 pm

2 stops22h 10m

$1,291

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

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.