$428+ Cheap flights from Washington to Gimpo Intl (GMP)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — GMP
Nov 29 — Dec 61
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Washington to Gimpo Intl
Keep the following information in mind while searching for Washington to Gimpo Intl flight deals. Data was last updated October 30, 2025.
Most accurate provider | Mytrip 3 stars |
|---|---|
Most trusted provider | Mytrip 3 stars |
Round-trip from | $872 (oojo) |
One-way from | $428 (Kiwi.com) |
Popular in | June |
Cheapest in | August |
Average price | $980 |
Find flight deals from Washington to Gimpo Intl
Cheapest flights from Washington to Gimpo IntlExplore the most affordable flight options available from Washington to Gimpo Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.
Explore the most affordable flight options available from Washington to Gimpo Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.
This oojo deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2912:10 pmSEA - GMP
1 stop29h 45mJapan Airlines
Tue 12/98:00 amGMP - SEA
2 stops42h 03mJapan Airlines
Deal found 10/29![Japan Airlines logo]()
$880
This oojo deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2912:10 pmSEA - GMP
1 stop16h 55mJapan Airlines
Sun 12/1412:05 pmGMP - SEA
1 stop14h 45mJapan Airlines
Deal found 10/29![Japan Airlines logo]()
$891
This FlightHub deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2812:10 pmSEA - GMP
1 stop16h 55mJapan Airlines
Mon 12/812:05 pmGMP - SEA
1 stop14h 45mJapan Airlines
Deal found 10/29![Japan Airlines logo]()
$902
This oojo deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/912:10 pmSEA - GMP
1 stop16h 55mJapan Airlines
Sat 12/2012:05 pmGMP - SEA
1 stop14h 45mJapan Airlines
Deal found 10/30![Japan Airlines logo]()
$904
This KAYAK deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/3012:10 pmSEA - GMP
1 stop16h 55mJapan Airlines
Sat 12/68:00 amGMP - SEA
1 stop18h 50mJapan Airlines
Deal found 10/29![Japan Airlines logo]()
$912
This KAYAK deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/38:45 amSEA - GMP
2 stops20h 20mJapan Airlines
Fri 12/512:05 pmGMP - SEA
1 stop14h 45mJapan Airlines
Deal found 10/29![Japan Airlines logo]()
$919
This KAYAK deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/38:45 amSEA - GMP
2 stops20h 20mJapan Airlines
Wed 12/1012:05 pmGMP - SEA
2 stops19h 33mJapan Airlines
Deal found 10/29![Japan Airlines logo]()
$932
This Japan Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/25:59 pmPDX - GMP
2 stops35h 06mMultiple Airlines
Fri 12/1212:05 pmGMP - PDX
2 stops22h 23mMultiple Airlines
Deal found 10/28![Multiple Airlines logo]()
$945
This Expedia deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/78:45 amSEA - GMP
2 stops20h 20mMultiple Airlines
Sat 12/138:00 amGMP - SEA
2 stops23h 38mMultiple Airlines
Deal found 10/29![Multiple Airlines logo]()
$945
This KAYAK deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2912:10 pmSEA - GMP
1 stop16h 55mJapan Airlines
Fri 12/58:00 amGMP - SEA
2 stops31h 25mJapan Airlines
Deal found 10/29![Japan Airlines logo]()
$949
This oojo deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:04 amPDX - GMP
2 stops22h 01mJapan Airlines
Fri 12/1212:05 pmGMP - PDX
2 stops21h 45mJapan Airlines
Deal found 10/28![Japan Airlines logo]()
$1,004
This Air Canada deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/269:50 amPDX - GMP
2 stops19h 05mMultiple Airlines
Wed 12/32:25 pmGMP - PDX
2 stops35h 50mMultiple Airlines
Deal found 10/28![Multiple Airlines logo]()
$1,147
Cheapflights Fare Finder
Customize your flight search to find flights from Washington to Gimpo Intl 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, Cheapflights users made 2,558,603 searches. Data last updated October 30, 2025.
Use the filters below to find and compare flights from Washington to Seoul Gimpo Intl Airport that are best for you.
Fly from
Washington
Fly to
Gimpo Intl
Route
Depart
Return
Price
SeattleSeoul
SEA - GMP
SEAGMP
Seattle/Tacoma Intl
Mon 1/12
11:43 am-10:05 pm
2 stops41h 22m
Seoul Gimpo Intl
Wed 1/28
8:00 am-4:42 pm
2 stops25h 42m
$895
PortlandSeoul
PDX - GMP
PDXGMP
Portland
Tue 12/2
5:59 pm-10:05 pm
2 stops35h 06m
Seoul Gimpo Intl
Fri 12/12
12:05 pm-5:28 pm
2 stops22h 23m
$945
SeattleSeoul
SEA - GMP
SEAGMP
Seattle/Tacoma Intl
Sun 12/7
8:45 am-10:05 pm
2 stops20h 20m
Seoul Gimpo Intl
Sat 12/13
8:00 am-2:38 pm
2 stops23h 38m
$945
SpokaneSeoul
GEG - GMP
GEGGMP
Spokane
Sat 1/10
5:53 pm-10:05 pm
2 stops35h 12m
Seoul Gimpo Intl
Wed 1/28
12:05 pm-3:25 pm
2 stops20h 20m
$952
SeattleSeoul
SEA - GMP
SEAGMP
Seattle/Tacoma Intl
Mon 12/8
6:25 am-10:05 pm
2 stops22h 40m
Seoul Gimpo Intl
Sat 12/13
8:00 am-2:38 pm
2 stops23h 38m
$959
SeattleSeoul
SEA - GMP
SEAGMP
Seattle/Tacoma Intl
Thu 12/11
12:10 pm-10:05 pm
1 stop16h 55m
Seoul Gimpo Intl
Tue 12/16
7:40 pm-9:50 am
1 stop31h 10m
$984
PortlandSeoul
PDX - GMP
PDXGMP
Portland
Wed 12/3
7:04 am-10:05 pm
2 stops22h 01m
Seoul Gimpo Intl
Fri 12/12
12:05 pm-4:50 pm
2 stops21h 45m
$1,004
SeattleSeoul
SEA - GMP
SEAGMP
Seattle/Tacoma Intl
Wed 11/26
12:10 pm-10:05 pm
1 stop16h 55m
Seoul Gimpo Intl
Tue 12/16
12:05 pm-9:50 am
1 stop14h 45m
$1,066
SeattleSeoul
SEA - GMP
SEAGMP
Seattle/Tacoma Intl
Thu 11/27
12:10 pm-10:05 pm
1 stop16h 55m
Seoul Gimpo Intl
Thu 12/4
12:05 pm-9:50 am
1 stop14h 45m
$1,070
SeattleSeoul
SEA - GMP
SEAGMP
Seattle/Tacoma Intl
Wed 11/26
12:10 pm-10:05 pm
1 stop16h 55m
Seoul Gimpo Intl
Wed 12/3
7:40 pm-9:50 am
1 stop31h 10m
$1,084
Showing 1-10 of 42 results
Best time to book a flight from Washington to Gimpo Intl
Have a flexible travel schedule? Discover the best time to fly to Gimpo Intl from Washington with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Washington to Seoul Gimpo Intl Airport
What is the cheapest time of day to fly from WA to GMP?
Find hourly flight availability from Washington to Gimpo Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.
It’s optimal to fly from State of Washington to Seoul Gimpo Intl Airport in the afternoon. By choosing this option you can save up to 34% on the cost of your flight, compared to a flight in the morning.