Gimpo Intl

$534+ 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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — GMP
May 5 — May 121
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington to Gimpo Intl with Cheapflights

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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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 April 30, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,122
(FlightHub)

One-way from

$534
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,107
Provider with most accurate pricing for Seattle/Tacoma Intl-Seoul (SEL) flight deals.
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Seoul (SEL) flights.
From Washington to Seoul Gimpo Intl
One-way flight from Washington to Seoul Gimpo Intl
Highest demand for flights based on searches. 19% potential increase in price ($295 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($39 potential savings vs. average RT price).
Average for round-trip flights in April 2025

Find flight deals from Washington to Gimpo Intl

Cheapest flights from Washington to Gimpo Intl
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 April 30, 2025.

This EVA Air deal was found by Cheapflights users on 4/28. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/121:30 amSEA - GMP
1 stop24h 40mEVA Air
Fri 11/211:50 pmGMP - SEA
1 stop21h 20mEVA Air
Deal found 4/28$1,073
This Gotogate deal was found by Cheapflights users on 4/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/284:30 pmSEA - GMP
1 stop34h 05mANA
Sat 10/187:40 amGMP - SEA
2 stops26h 56mANA
Deal found 4/28$1,121
This Expedia deal was found by Cheapflights users on 4/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1110:00 amPDX - GMP
2 stops36h 00mMultiple Airlines
Sat 9/208:20 amGMP - PDX
2 stops30h 36mMultiple Airlines
Deal found 4/28$1,163
This CheapOair deal was found by Cheapflights users on 4/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/151:30 amSEA - GMP
1 stop19h 20mMultiple Airlines
Thu 10/238:20 amGMP - SEA
2 stops29h 56mMultiple Airlines
Deal found 4/28$1,166
This FlightHub deal was found by Cheapflights users on 4/29. 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.
Wed 8/610:30 amPDX - GMP
2 stops32h 15mJapan Airlines
Wed 8/207:55 amGMP - PDX
2 stops21h 49mJapan Airlines
Deal found 4/29$1,282
This KAYAK deal was found by Cheapflights users on 4/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2710:10 amPDX - GMP
2 stops20h 20mANA
Sun 11/212:25 pmGMP - PDX
2 stops22h 59mANA
Deal found 4/28$1,423
This FlightHub deal was found by Cheapflights users on 4/29. 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.
Sun 7/131:30 pmSEA - GMP
1 stop29h 15mJapan Airlines
Thu 7/317:55 amGMP - SEA
1 stop18h 40mJapan Airlines
Deal found 4/29$1,445
This Ovago deal was found by Cheapflights users on 4/29. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1510:30 amGEG - GMP
2 stops19h 20mJapan Airlines
Wed 10/2212:05 pmGMP - GEG
2 stops17h 39mJapan Airlines
Deal found 4/29$2,054
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/136:05 amGEG - GMP
2 stops19h 55mMultiple Airlines
Tue 7/2212:05 pmGMP - GEG
2 stops21h 42mMultiple Airlines
Deal found 4/28$5,727

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 April 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 5/5

1:50 am-7:15 pm

1 stop25h 25m

Seoul Gimpo Intl

Sat 7/19

1:50 pm-7:10 pm

1 stop21h 20m

$1,122

PortlandSeoul

PDX - GMP

PDXGMP

Portland

Thu 9/11

10:00 am-2:00 pm

2 stops36h 00m

Seoul Gimpo Intl

Sat 9/20

8:20 am-10:56 pm

2 stops30h 36m

$1,163

PortlandSeoul

PDX - GMP

PDXGMP

Portland

Wed 8/6

10:30 am-10:45 am

2 stops32h 15m

Seoul Gimpo Intl

Wed 8/20

7:55 am-1:44 pm

2 stops21h 49m

$1,282

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Mon 5/5

4:30 pm-6:35 pm

1 stop34h 05m

Seoul Gimpo Intl

Tue 5/13

12:40 pm-6:33 pm

2 stops21h 53m

$1,286

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Mon 5/5

4:30 pm-10:05 pm

1 stop37h 35m

Seoul Gimpo Intl

Thu 5/15

6:15 am-11:30 am

2 stops21h 15m

$1,304

PortlandSeoul

PDX - GMP

PDXGMP

Portland

Mon 9/22

7:45 am-11:05 am

2 stops35h 20m

Seoul Gimpo Intl

Mon 9/29

12:40 pm-6:46 pm

2 stops22h 06m

$1,431

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Sun 7/13

1:30 pm-10:45 am

1 stop29h 15m

Seoul Gimpo Intl

Thu 7/31

7:55 am-10:35 am

1 stop18h 40m

$1,445

SpokaneSeoul

GEG - GMP

GEGGMP

Spokane

Wed 10/15

10:30 am-9:50 pm

2 stops19h 20m

Seoul Gimpo Intl

Wed 10/22

12:05 pm-1:44 pm

2 stops17h 39m

$2,054

SpokaneSeoul

GEG - GMP

GEGGMP

Spokane

Sun 7/13

6:05 am-6:00 pm

2 stops19h 55m

Seoul Gimpo Intl

Tue 7/22

12:05 pm-5:47 pm

2 stops21h 42m

$5,727

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Mon 5/19

6:04 pm-1:00 pm

3 stops50h 56m

$534

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 17 results
1
2

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 April 30, 2025.

When flying from State of Washington to Seoul Gimpo Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Gimpo Intl by month

Plan your trip to Gimpo Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seoul Gimpo Intl Airport ranges from 1.1 - 10.0 inches per month. July is typically the wettest month, when rainfall can reach 10.0 in. December is typically the driest time to visit Seoul Gimpo Intl Airport when rainfall is around 1.1 in.

Temperature in Gimpo Intl by month

Plan your trip to Gimpo Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seoul Gimpo Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Gimpo Intl

Get insights into the airlines that provide service to Gimpo Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Gimpo Intl. Reviews last updated April 30, 2025.
See what other customers who have flown with EVA Air, Japan Airlines and ANA from Washington to Seoul have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.3

Crew

8.6

Entertainment

8.0

Overall

8.4

Boarding

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Comfort

8.3

Crew

8.6

Entertainment

8.0

Overall

8.4

Boarding

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Comfort

8.3

Crew

8.6

Entertainment

8.0

Overall

8.4

Boarding

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
8.3
Very good

Comfort

8.3

Crew

8.6

Entertainment

8.0

Overall

8.4

Boarding

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Comfort

8.3

Crew

8.6

Entertainment

8.0

Overall

8.4

Boarding

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Related info for your journey

Find useful and relevant information for your journey from Washington to Gimpo Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the cheapest airlines to fly from State of Washington to Seoul Gimpo Intl Airport one-way?

    $559 is the cheapest one-way deal found within the past few days, from China Eastern. You may also be able to find cheap deals on EVA Air and ANA, with prices starting from $608 and $778, respectively.

  • What are the most popular routes from State of Washington to Seoul Gimpo Intl Airport?

  • Can I find deals for flights from Washington to Gimpo Intl that include hotel bookings?

    Yes. In addition to deals on Washington to Gimpo Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Gimpo Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Gimpo Intl.

  • Can I find deals for business class flights from Washington to Gimpo Intl?

    Yes. Cheapflights offers flight deals from Washington to Gimpo Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington to Gimpo Intl

See prices for flight routes from nearby airports that may be better suited for you.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.