How long is the flight from Seoul Gimpo Intl Airport to Washington, D.C.?

There are many flights that can get you from Seoul Gimpo Intl Airport to Washington, D.C. in 24h 43m. Fly via ANA or Japan Airlines to get the fastest option. Seoul Gimpo Intl Airport and Washington, D.C. are separated by a distance of 6924 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What is the cheapest month to book a flight from Seoul Gimpo Intl Airport to Washington, D.C.?

Currently, August is the cheapest month in which you can book a flight from Seoul Gimpo Intl Airport to Washington, D.C. (average of $292). Flying from Seoul Gimpo Intl Airport to Washington, D.C. in April is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest day to fly from Seoul Gimpo Intl Airport to Washington, D.C.?

Travelers seeking maximum savings on their Seoul Gimpo Intl Airport to Washington, D.C. flight should consider departing on Thursday evenings when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What are the most popular routes from Seoul Gimpo Intl Airport to Washington, D.C.?

When deciding which route to take from Seoul Gimpo Intl Airport to Washington, D.C. consider Seoul Gimpo Intl - Washington, D.C. Dulles Intl, Seoul Gimpo Intl - Washington, D.C. Reagan-National or Seoul Gimpo Intl - Baltimore/Washington as they are the most popular.

What is the cheapest time of day to fly from GMP to WAS?

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

Can I find deals for flights from Gimpo Intl to Washington, D.C. that include hotel bookings?

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

How can I find direct flights from Gimpo Intl to Washington, D.C.?

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

Can I find deals for business class flights from Gimpo Intl to Washington, D.C.?

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

$552+ Cheap Flights from Seoul Gimpo Intl Airport to Washington, D.C.

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Cheap flight deals from Gimpo Intl to Washington, D.C.

Round-trip from	$1,052 (WhyPayMore)
One-way from	$552 (Mytrip)
Popular in	August
Cheapest in	February
Average price	$871

From Seoul Gimpo Intl to Washington, D.C. (WAS)

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One-way flight from Seoul Gimpo Intl to Washington, D.C. (WAS)

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Highest demand for flights based on searches. 17% potential increase in price ($226 potential increase over avg. RT price).

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Cheapest flight prices on average. 7% potential price decrease ($75 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Find flight deals from Gimpo Intl to Washington, D.C.

Cheapest flights from Gimpo Intl to Washington, D.C.
Explore the most affordable flight options available from Gimpo Intl to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 16, 2025.

lun. 12/1512:25 pmGMP - IAD

1 stop34h 45mANA

vie. 2/2711:05 amIAD - GMP

1 stop21h 25mANA

Deal found 9/14

$1,052

mié. 10/297:50 pmGMP - DCA

2 stops31h 20mANA

mié. 11/57:30 amDCA - GMP

2 stops37h 50mANA

Deal found 9/13

$1,091

sáb. 9/277:55 pmGMP - IAD

1 stop27h 10mANA

vie. 12/511:05 amIAD - GMP

1 stop34h 15mANA

Deal found 9/14

$1,104

jue. 11/207:50 pmGMP - IAD

1 stop27h 20mANA

jue. 12/411:05 amIAD - GMP

1 stop21h 25mANA

Deal found 9/14

$1,112

mié. 10/297:50 pmGMP - IAD

2 stops33h 05mANA

mié. 11/511:05 amIAD - GMP

1 stop21h 25mANA

Deal found 9/14

$1,161

mar. 10/712:05 pmGMP - BWI

2 stops24h 43mJapan Airlines

lun. 10/206:00 amBWI - GMP

2 stops50h 50mJapan Airlines

Deal found 9/15

$1,224

vie. 11/217:50 pmGMP - IAD

1 stop27h 20mANA

jue. 12/411:05 amIAD - GMP

1 stop21h 25mANA

Deal found 9/14

$1,236

vie. 10/107:55 amGMP - DCA

2 stops28h 02mJapan Airlines

sáb. 10/187:06 pmDCA - GMP

2 stops37h 44mJapan Airlines

Deal found 9/15

$1,249

vie. 10/107:55 amGMP - DCA

2 stops28h 02mJapan Airlines

lun. 10/137:06 pmDCA - GMP

2 stops37h 44mJapan Airlines

Deal found 9/15

$1,266

mié. 9/177:55 amGMP - DCA

2 stops21h 34mMultiple Airlines

mié. 10/2210:45 pmDCA - GMP

2 stops23h 00mMultiple Airlines

Deal found 9/14

$1,267

mar. 10/712:05 pmGMP - BWI

2 stops24h 43mJapan Airlines

dom. 10/196:00 amBWI - GMP

2 stops39h 45mJapan Airlines

Deal found 9/15

$1,278

jue. 10/307:50 pmGMP - BWI

2 stops34h 24mANA

jue. 11/66:15 amBWI - GMP

2 stops39h 05mANA

Deal found 9/14

$1,279

Best flights from Gimpo Intl to Washington, D.C.
Discover carefully curated flight deals from Gimpo Intl to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated septiembre 16, 2025.

lun. 12/1512:25 pmGMP - IAD

1 stop34h 45mANA

vie. 2/2711:05 amIAD - GMP

1 stop21h 25mANA

Deal found 9/15

$1,052

mar. 10/712:05 pmGMP - BWI

2 stops24h 43mJapan Airlines

lun. 10/206:00 amBWI - GMP

2 stops50h 50mJapan Airlines

Deal found 9/15

$1,224

mié. 10/1512:05 pmGMP - BWI

2 stops24h 43mMultiple Airlines

mié. 10/2211:50 amBWI - GMP

2 stops33h 55mMultiple Airlines

Deal found 9/15

$1,278

mié. 2/117:50 pmGMP - IAD

1 stop27h 20mANA

lun. 3/912:10 pmIAD - GMP

1 stop34h 10mANA

Deal found 9/14

$1,078

mié. 10/297:50 pmGMP - DCA

2 stops31h 20mANA

mié. 11/57:30 amDCA - GMP

2 stops37h 50mANA

Deal found 9/13

$1,091

mié. 10/812:05 pmGMP - BWI

2 stops24h 43mJapan Airlines

lun. 10/206:00 amBWI - GMP

2 stops50h 50mJapan Airlines

Deal found 9/15

$1,224

jue. 10/97:55 amGMP - BWI

2 stops28h 53mJapan Airlines

lun. 10/206:00 amBWI - GMP

2 stops50h 50mJapan Airlines

Deal found 9/15

$1,224

jue. 2/512:25 pmGMP - DCA

2 stops38h 48mANA

dom. 2/82:00 pmDCA - GMP

2 stops42h 30mANA

Deal found 9/14

$1,137

vie. 10/107:55 amGMP - DCA

2 stops28h 02mJapan Airlines

lun. 10/137:06 pmDCA - GMP

2 stops37h 44mJapan Airlines

Deal found 9/15

$1,266

lun. 3/912:25 pmGMP - IAD

2 stops45h 40mANA

mié. 3/1112:10 pmIAD - GMP

1 stop21h 20mANA

Deal found 9/14

$1,155

vie. 10/107:55 amGMP - DCA

2 stops28h 02mJapan Airlines

mié. 10/226:38 amDCA - GMP

2 stops26h 12mJapan Airlines

Deal found 9/15

$1,266

mié. 10/297:50 pmGMP - IAD

2 stops33h 05mANA

mié. 11/511:05 amIAD - GMP

1 stop21h 25mANA

Deal found 9/14

$1,161

vie. 10/107:55 amGMP - DCA

2 stops28h 02mJapan Airlines

mar. 10/146:38 amDCA - GMP

2 stops26h 12mJapan Airlines

Deal found 9/15

$1,266

vie. 11/217:50 pmGMP - IAD

1 stop27h 20mANA

jue. 12/411:05 amIAD - GMP

1 stop21h 25mANA

Deal found 9/14

$1,236

vie. 10/107:55 amGMP - DCA

2 stops28h 02mJapan Airlines

mar. 10/217:06 pmDCA - GMP

2 stops37h 44mJapan Airlines

Deal found 9/15

$1,266

jue. 10/912:05 pmGMP - BWI

2 stops24h 43mJapan Airlines

dom. 10/196:00 amBWI - GMP

2 stops47h 00mJapan Airlines

Deal found 9/15

$1,278

mié. 10/297:50 pmGMP - BWI

2 stops34h 24mANA

mié. 11/56:15 amBWI - GMP

2 stops39h 05mANA

Deal found 9/13

$1,278

mar. 10/77:55 amGMP - BWI

2 stops28h 53mJapan Airlines

dom. 10/196:00 amBWI - GMP

2 stops39h 45mJapan Airlines

Deal found 9/15

$1,278

jue. 10/307:50 pmGMP - BWI

2 stops34h 24mANA

jue. 11/66:15 amBWI - GMP

2 stops39h 05mANA

Deal found 9/14

$1,279

mié. 10/812:05 pmGMP - BWI

2 stops24h 43mJapan Airlines

dom. 10/196:00 amBWI - GMP

2 stops47h 00mJapan Airlines

Deal found 9/15

$1,278

lun. 9/2912:05 pmGMP - BWI

2 stops24h 42mJapan Airlines

dom. 10/196:00 amBWI - GMP

2 stops39h 45mJapan Airlines

Deal found 9/15

$1,278

mié. 2/118:00 amGMP - DCA

2 stops22h 27mJapan Airlines

lun. 3/98:01 amDCA - GMP

2 stops25h 04mJapan Airlines

Deal found 9/14

$1,292

dom. 9/2812:05 pmGMP - BWI

2 stops24h 42mJapan Airlines

dom. 10/196:00 amBWI - GMP

2 stops39h 45mJapan Airlines

Deal found 9/15

$1,332

mié. 10/812:05 pmGMP - DCA

2 stops23h 52mJapan Airlines

sáb. 10/187:06 pmDCA - GMP

2 stops37h 44mJapan Airlines

Deal found 9/15

$1,365

lun. 9/2912:05 pmGMP - DCA

2 stops24h 02mJapan Airlines

sáb. 10/186:38 amDCA - GMP

2 stops50h 12mJapan Airlines

Deal found 9/15

$1,365

Last-minute flights from Gimpo Intl to Washington, D.C.
Discover last-minute flight deals from Gimpo Intl to Washington, D.C.. Data last updated septiembre 16, 2025 and is based on user searches.

mié. 9/177:55 amGMP - DCA

2 stops21h 34mMultiple Airlines

mié. 10/2210:45 pmDCA - GMP

2 stops23h 00mMultiple Airlines

Deal found 9/14

$1,267

sáb. 9/277:55 pmGMP - IAD

1 stop27h 10mANA

vie. 12/511:05 amIAD - GMP

1 stop34h 15mANA

Deal found 9/14

$1,104

dom. 9/2812:05 pmGMP - BWI

2 stops24h 42mJapan Airlines

dom. 10/196:00 amBWI - GMP

2 stops39h 45mJapan Airlines

Deal found 9/15

$1,332

mar. 10/712:05 pmGMP - BWI

2 stops24h 43mJapan Airlines

lun. 10/206:00 amBWI - GMP

2 stops50h 50mJapan Airlines

Deal found 9/15

$1,224

mar. 10/712:05 pmGMP - BWI

2 stops24h 43mJapan Airlines

dom. 10/196:00 amBWI - GMP

2 stops39h 45mJapan Airlines

Deal found 9/15

$1,278

vie. 10/107:55 amGMP - DCA

2 stops28h 02mJapan Airlines

sáb. 10/187:06 pmDCA - GMP

2 stops37h 44mJapan Airlines

Deal found 9/15

$1,249

vie. 10/107:55 amGMP - DCA

2 stops28h 02mJapan Airlines

lun. 10/137:06 pmDCA - GMP

2 stops37h 44mJapan Airlines

Deal found 9/15

$1,266

mié. 10/1512:05 pmGMP - IAD

2 stops25h 18mJapan Airlines

mié. 10/226:25 amIAD - GMP

2 stops26h 25mJapan Airlines

Deal found 9/15

$1,333

vie. 10/247:55 amGMP - DCA

2 stops19h 03mJapan Airlines

lun. 11/33:25 pmDCA - GMP

2 stops29h 30mJapan Airlines

Deal found 9/15

$1,303

mié. 10/297:50 pmGMP - DCA

2 stops31h 20mANA

mié. 11/57:30 amDCA - GMP

2 stops37h 50mANA

Deal found 9/13

$1,091

mié. 10/297:50 pmGMP - IAD

2 stops33h 05mANA

mié. 11/511:05 amIAD - GMP

1 stop21h 25mANA

Deal found 9/14

$1,161

jue. 10/307:50 pmGMP - BWI

2 stops34h 24mANA

jue. 11/66:15 amBWI - GMP

2 stops39h 05mANA

Deal found 9/14

$1,279

One-way flights from Gimpo Intl to Washington, D.C.
Search for one-way flight options from Gimpo Intl to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated septiembre 16, 2025.

mié. 10/221:05 pmGMP - DCA

2 stops22h 29mMultiple Airlines

Deal found 9/15

$552

mié. 10/221:05 pmGMP - BWI

3 stops34h 56mMultiple Airlines

Deal found 9/14

$568

mar. 10/212:00 pmGMP - IAD

3 stops32h 38mMultiple Airlines

Deal found 9/14

$612

vie. 10/318:00 amGMP - DCA

2 stops27h 57mJapan Airlines

Deal found 9/14

$612

lun. 10/137:55 amGMP - DCA

2 stops26h 04mJapan Airlines

Deal found 9/14

$636

jue. 9/257:20 pmGMP - DCA

2 stops40h 47mJapan Airlines

Deal found 9/15

$748

mié. 10/227:20 pmGMP - BWI

2 stops35h 13mJapan Airlines

Deal found 9/15

$749

mié. 10/227:20 pmGMP - DCA

2 stops32h 08mJapan Airlines

Deal found 9/14

$749

jue. 2/128:00 amGMP - BWI

2 stops19h 58mMultiple Airlines

Deal found 9/15

$750

mié. 10/157:55 amGMP - IAD

2 stops29h 28mJapan Airlines

Deal found 9/13

$751

lun. 9/227:55 amGMP - BWI

2 stops28h 52mJapan Airlines

Deal found 9/15

$806

lun. 9/227:55 amGMP - DCA

2 stops28h 12mJapan Airlines

Deal found 9/15

$806

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seoul Gimpo Intl Airport to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

lun. 12/15

12:25 pm-9:10 am

1 stop34h 45m

Washington, D.C. Dulles Intl

vie. 2/27

11:05 am-10:30 pm

1 stop21h 25m

$1,052

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

mié. 2/11

7:50 pm-9:10 am

1 stop27h 20m

Washington, D.C. Dulles Intl

lun. 3/9

12:10 pm-11:20 am

1 stop34h 10m

$1,078

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

mié. 10/29

7:50 pm-2:10 pm

2 stops31h 20m

Washington, D.C. Reagan-National

mié. 11/5

7:30 am-11:20 am

2 stops37h 50m

$1,091

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

jue. 2/5

12:25 pm-1:13 pm

2 stops38h 48m

Washington, D.C. Reagan-National

dom. 2/8

2:00 pm-10:30 pm

2 stops42h 30m

$1,137

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

lun. 3/9

12:25 pm-9:05 pm

2 stops45h 40m

Washington, D.C. Dulles Intl

mié. 3/11

12:10 pm-10:30 pm

1 stop21h 20m

$1,155

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

mié. 10/29

7:50 pm-3:55 pm

2 stops33h 05m

Washington, D.C. Dulles Intl

mié. 11/5

11:05 am-10:30 pm

1 stop21h 25m

$1,161

SeoulBaltimore

GMP - BWI

GMPBWI

Seoul Gimpo Intl

mar. 10/7

12:05 pm-11:48 pm

2 stops24h 43m

Baltimore/Washington

lun. 10/20

6:00 am-9:50 pm

2 stops50h 50m

$1,224

SeoulBaltimore

GMP - BWI

GMPBWI

Seoul Gimpo Intl

mié. 10/8

12:05 pm-11:48 pm

2 stops24h 43m

Baltimore/Washington

lun. 10/20

6:00 am-9:50 pm

2 stops50h 50m

$1,224

SeoulBaltimore

GMP - BWI

GMPBWI

Seoul Gimpo Intl

jue. 10/9

7:55 am-11:48 pm

2 stops28h 53m

Baltimore/Washington

lun. 10/20

6:00 am-9:50 pm

2 stops50h 50m

$1,224

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

vie. 11/21

7:50 pm-9:10 am

1 stop27h 20m

Washington, D.C. Dulles Intl

jue. 12/4

11:05 am-10:30 pm

1 stop21h 25m

$1,236

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 55 results

...

Best time to book a flight from Gimpo Intl to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Gimpo Intl 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 Seoul Gimpo Intl Airport to Washington, D.C.

No data available for this route at this time. Please check back soon.

Related info for your journey

How long is the flight from Seoul Gimpo Intl Airport to Washington, D.C.?
There are many flights that can get you from Seoul Gimpo Intl Airport to Washington, D.C. in 24h 43m. Fly via ANA or Japan Airlines to get the fastest option. Seoul Gimpo Intl Airport and Washington, D.C. are separated by a distance of 6924 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the most popular routes from Seoul Gimpo Intl Airport to Washington, D.C.?
When deciding which route to take from Seoul Gimpo Intl Airport to Washington, D.C. consider Seoul Gimpo Intl - Washington, D.C. Dulles Intl, Seoul Gimpo Intl - Washington, D.C. Reagan-National or Seoul Gimpo Intl - Baltimore/Washington as they are the most popular.
Can I find deals for flights from Gimpo Intl to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Gimpo Intl to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Gimpo Intl to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Gimpo Intl to Washington, D.C..
Can I find deals for business class flights from Gimpo Intl to Washington, D.C.?
Yes. Cheapflights offers flight deals from Gimpo Intl to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Seoul Gimpo Intl Airport to Washington, D.C.?
Currently, August is the cheapest month in which you can book a flight from Seoul Gimpo Intl Airport to Washington, D.C. (average of $292). Flying from Seoul Gimpo Intl Airport to Washington, D.C. in April is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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$552+ Cheap flights from Gimpo Intl (GMP) to Washington, D.C. (WAS)

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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.

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Find flight deals from Gimpo Intl to Washington, D.C.

Cheapest flights from Gimpo Intl to Washington, D.C.Explore the most affordable flight options available from Gimpo Intl to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 16, 2025.

Explore the most affordable flight options available from Gimpo Intl to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 16, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seoul Gimpo Intl Airport to Washington, D.C. that are best for you.

Best time to book a flight from Gimpo Intl to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Gimpo Intl with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Seoul Gimpo Intl Airport to Washington, D.C.

Related info for your journey

Find useful and relevant information for your journey from Gimpo Intl to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Seoul Gimpo Intl Airport to Washington, D.C.?

What are the most popular routes from Seoul Gimpo Intl Airport to Washington, D.C.?

Can I find deals for flights from Gimpo Intl to Washington, D.C. that include hotel bookings?

How can I find direct flights from Gimpo Intl to Washington, D.C.?

Can I find deals for business class flights from Gimpo Intl to Washington, D.C.?

What is the cheapest month to book a flight from Seoul Gimpo Intl Airport to Washington, D.C.?

Traveling to a place near Washington, D.C.?

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Cheapest flights from Gimpo Intl to Washington, D.C.
Explore the most affordable flight options available from Gimpo Intl to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 16, 2025.