Title: $701 Cheap flights from Seoul to Washington (GMP to DCA) - Expedia.com ![Washington DC in Spring](https://images.trvl-media.com/place/3763/58eb1a51-e7f1-4f17-88af-21174d495e42.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/3763/58eb1a51-e7f1-4f17-88af-21174d495e42.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # $701 Cheap Flights from Seoul (GMP) to Washington (DCA) [View $701 flight on Sun, Nov 8, 2026](https://expedia.com/Flights-Search?trip=oneway&leg1=from:GMP,to:DCA,departure:11/8/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:700.43&airProductToken=AQqiAQowCMqYARICOTIYhnsgpxso-cicAzD2yZwDOFZAAFgBagZFQ09TVkZyCFZMWDAwWVo5Ci8IypgBEgE2GKcbIKlRKN3TnAMw2tmcAzhWQAFYAWoGRUNPU1ZGcghWTFgwMFlaOQo9CMqYARIENzQ1NhipUSBDKK7cnAMw_9ycAzhWQAFYAWoGRUNPU1ZGcghWTFgwMFlaOXoKCMGCARIENDM2MRIKCAEQARgBKgJKTBgBIgQIARABKAIoBCgGMAE) ## Popular airlines from Gimpo Intl. Airport (GMP) to Ronald Reagan Washington National Airport (DCA) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_JL.svg) Japan Airlines [](https://www.expedia.com/Flights-Search?leg1=from:GMP,to:DCA,departure:4/13/2026TANYT&leg2=from:DCA,to:GMP,departure:4/20/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"JL"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_NH.svg) All Nippon Airways [](https://www.expedia.com/Flights-Search?leg1=from:GMP,to:DCA,departure:4/13/2026TANYT&leg2=from:DCA,to:GMP,departure:4/20/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"NH"}}]) - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our OneKeyCash [Learn about One Key](https://www.expedia.com/welcome-one-key) ## Cheap Flights from Seoul to Washington (GMP-DCA) Prices were available within the past 7 days and start at $701 for one-way flights and $1,188 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Japan Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/JL.gif) Thu, Sep 17 - Mon, Feb 15 GMP Seoul DCA Washington $1,188 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:GMP,to:DCA,departure:9/17/2026TANYT&leg2=from:DCA,to:GMP,departure:2/15/2027TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1187.23&airProductToken=AQqXAQowCMqYARICOTAYhnsgpxsohP6XAzCL_5cDOFZAAFgBagZFQ09TVkZyCFZMWDA4WVo5CjAIypgBEgIxMBinGyCuHCiwgJgDMPGFmAM4VkABWAFqBkVDT1NWRnIIVkxYMDhZWjkKMQjKmAESBDgzNDQYrhwgQyiXh5gDMI2ImAM4VkABWAFqBkVDT1NWRnIIVkxYMDhZWjkKlgEKMQjKmAESBDc0NTcYQyCpUSi5pqUDMI2npQM4VkAAWAFqBkVDT1NWRnIIVkxYMDhZWjkKLwjKmAESATUYqVEgpxsozqmlAzCvsKUDOFZAAVgBagZFQ09TVkZyCFZMWDA4WVo5CjAIypgBEgI5NRinGyCGeyi2saUDMNGypQM4VkABWAFqBkVDT1NWRnIIVkxYMDhZWjkSDAgBEAEYASoCSkwyABgBIgQIARABKAIoBCgGMAE) ![Japan Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/JL.gif) Wed, May 20 - Wed, Aug 19 GMP Seoul DCA Washington $1,193 Roundtrip found 2 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:GMP,to:DCA,departure:5/20/2026TANYT&leg2=from:DCA,to:GMP,departure:8/19/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1192.73&airProductToken=AQqiAQowCMqYARICOTAYhnsgpxsohLiNAzCLuY0DOFZAAFgBagZFQ09TVkZyCFZMWDA4WVo5Ci8IypgBEgE2GKcbIKlRKL25jQMwyb-NAzhWQAFYAWoGRUNPU1ZGcghWTFgwOFlaOQo9CMqYARIENzQ1NhipUSBDKLPBjQMwncKNAzhWQAFYAWoGRUNPU1ZGcghWTFgwOFlaOXoKCMGCARIENDUyMgqiAQo9CMqYARIENzQ1NxhDIKlRKJXDlQMw4sOVAzhWQABYAWoGRUNPU1ZGcghWTFgwOFlaOXoKCMGCARIENDYyOQovCMqYARIBMxipUSCnGyiKxpUDMNfMlQM4VkABWAFqBkVDT1NWRnIIVkxYMDhZWjkKMAjKmAESAjkxGKcbIIZ7KLjOlQMwxM-VAzhWQAFYAWoGRUNPU1ZGcghWTFgwOFlaORIKCAEQARgBKgJKTBgBIgQIARABKAIoBCgGMAE) ![Japan Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/JL.gif) Mon, Jun 8 - Mon, Jul 13 GMP Seoul DCA Washington $1,196 Roundtrip found 6 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:GMP,to:DCA,departure:6/8/2026TANYT&leg2=from:DCA,to:GMP,departure:7/13/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1195.13&airProductToken=AQqiAQowCMqYARICOTIYhnsgpxso2Y-PAzDgkI8DOFZAAFgBagZFQ09TVkZyCFZMWDA4WVo5Ci8IypgBEgE0GKcbIKlRKJaTjwMwopmPAzhWQAFYAWoGRUNPU1ZGcghWTFgwOFlaOQo9CMqYARIENzQ2MBipUSBDKJqajwMwgpuPAzhWQAFYAWoGRUNPU1ZGcghWTFgwOFlaOXoKCMGCARIENDMzNgqwAQo9CMqYARIENzQ1ORhDIKlRKPackgMwzZ2SAzhWQABYAWoGRUNPU1ZGcghWTFgwOFlaOXoKCMGCARIENDU1MQo9CMqYARIENzAwORipUSCnGyjrnpIDMMelkgM4VkABWAFqBkVDT1NWRnIIVkxYMDhZWjl6CQjBggESAzE2NwowCMqYARICOTUYpxsghnso86eSAzD_qJIDOFZAAVgBagZFQ09TVkZyCFZMWDA4WVo5EgoIARABGAEqAkpMGAEiBAgBEAEoAigEKAYwAQ) ![Japan Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/JL.gif) Wed, Apr 1 - Mon, Apr 27 GMP Seoul DCA Washington $1,231 Roundtrip found 5 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:GMP,to:DCA,departure:4/1/2026TANYT&leg2=from:DCA,to:GMP,departure:4/27/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1230.53&airProductToken=AQqiAQowCMqYARICOTIYhnsgpxso2ZKJAzDgk4kDOExAAFgBagZFQ09TVkZyCExMWDA4WVo5Ci8IypgBEgE0GKcbIKlRKJuWiQMwopyJAzhMQAFYAWoGRUNPU1ZGcghMTFgwOFlaOQo9CMqYARIENzQ1NhipUSBDKPyciQMw1Z2JAzhMQAFYAWoGRUNPU1ZGcghMTFgwOFlaOXoKCMGCARIENDU0NgqiAQo9CMqYARIEODM0OBhDIK4cKIi9iwMwlr6LAzhWQABYAWoGRUNPU1ZGcghWTFgwOFlaOXoKCMGCARIEMTA2MQovCMqYARIBORiuHCCnGyjevosDMP7EiwM4VkABWAFqBkVDT1NWRnIIVkxYMDhZWjkKMAjKmAESAjk1GKcbIIZ7KNPFiwMw38aLAzhWQAFYAWoGRUNPU1ZGcghWTFgwOFlaORIKCAEQARgBKgJKTBgBIgQIARABKAIoBCgGMAE) ![Japan Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/JL.gif) Mon, May 4 - Tue, May 12 GMP Seoul DCA Washington $1,236 Roundtrip found 6 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:GMP,to:DCA,departure:5/4/2026TANYT&leg2=from:DCA,to:GMP,departure:5/12/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1235.64&airProductToken=AQqiAQowCMqYARICOTAYhnsgpxsohISMAzCLhYwDOExAAFgBagZFQ09TVkZyCExMWDA4WVo5Ci8IypgBEgE0GKcbIKlRKLaJjAMwwo-MAzhMQAFYAWoGRUNPU1ZGcghMTFgwOFlaOQo9CMqYARIENzQ1NhipUSBDKNOYjAMwvZmMAzhMQAFYAWoGRUNPU1ZGcghMTFgwOFlaOXoKCMGCARIENDUyMgqwAQo9CMqYARIENzQ1ORhDIKlRKJjjjAMw7-OMAzhWQABYAWoGRUNPU1ZGcghWTFgwOFlaOXoKCMGCARIENDU1MQo9CMqYARIENzAwORipUSCnGyim5YwDMIfsjAM4VkABWAFqBkVDT1NWRnIIVkxYMDhZWjl6CQjBggESAzE2NwowCMqYARICOTMYpxsghnso6-yMAzD37YwDOFZAAVgBagZFQ09TVkZyCFZMWDA4WVo5EgoIARABGAEqAkpMGAEiBAgBEAEoAigEKAYwAQ) ![Japan Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/JL.gif) Thu, Sep 17 - Mon, Feb 15 GMP Seoul DCA Washington $1,238 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:GMP,to:DCA,departure:9/17/2026TANYT&leg2=from:DCA,to:GMP,departure:2/15/2027TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1237.23&airProductToken=AQqjAQo0CMqYARICOTAYhnsgpxsohP6XAzCL_5cDOFZAAFgBagpFQ09TRU1GTFhGcghWTFgwOFlOOAo0CMqYARICMTAYpxsgrhwosICYAzDxhZgDOFZAAVgBagpFQ09TRU1GTFhGcghWTFgwOFlOOAo1CMqYARIEODM0NBiuHCBDKJeHmAMwjYiYAzhWQAFYAWoKRUNPU0VNRkxYRnIIVkxYMDhZTjgKogEKNQjKmAESBDc0NTcYQyCpUSi5pqUDMI2npQM4VkAAWAFqCkVDT1NFTUZMWEZyCFZMWDA4WU44CjMIypgBEgE1GKlRIKcbKM6ppQMwr7ClAzhWQAFYAWoKRUNPU0VNRkxYRnIIVkxYMDhZTjgKNAjKmAESAjk1GKcbIIZ7KLaxpQMw0bKlAzhWQAFYAWoKRUNPU0VNRkxYRnIIVkxYMDhZTjgSDAgBEAEYASoCSkwyABgBIgQIARABKAIoBCgGMAE) ![Japan Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/JL.gif) Wed, May 20 - Wed, Aug 19 GMP Seoul DCA Washington $1,260 Roundtrip found 2 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:GMP,to:DCA,departure:5/20/2026TANYT&leg2=from:DCA,to:GMP,departure:8/19/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1259.73&airProductToken=AQqyAQowCMqYARICOTAYhnsgpxsohLiNAzCLuY0DOExAAFgBagZFQ09TVkZyCExMWDA4WVo5Cj4IypgBEgQ3MDE2GKcbIIu4ASjvuY0DMMy-jQM4TEABWAFqBkVDT1NWRnIITExYMDhZWjl6CQjBggESAzE3MAo-CMqYARIENzYwMxiLuAEgQyi4v40DMOjBjQM4TEABWAFqBkVDT1NWRnIITExYMDhZWjl6CgjBggESBDE3NjMKogEKPQjKmAESBDc0NTcYQyCpUSiVw5UDMOLDlQM4VkAAWAFqBkVDT1NWRnIIVkxYMDhZWjl6CgjBggESBDQ2MjkKLwjKmAESATMYqVEgpxsoisaVAzDXzJUDOFZAAVgBagZFQ09TVkZyCFZMWDA4WVo5CjAIypgBEgI5MRinGyCGeyi4zpUDMMTPlQM4VkABWAFqBkVDT1NWRnIIVkxYMDhZWjkSCggBEAEYASoCSkwYASIECAEQASgCKAQoBjAB) ![Japan Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/JL.gif) Wed, Apr 1 - Mon, Apr 27 GMP Seoul DCA Washington $1,281 Roundtrip found 5 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:GMP,to:DCA,departure:4/1/2026TANYT&leg2=from:DCA,to:GMP,departure:4/27/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1280.53&airProductToken=AQquAQo0CMqYARICOTIYhnsgpxso2ZKJAzDgk4kDOExAAFgBagpFQ09TRU1GTFhGcghMTFgwOFlOOAozCMqYARIBNBinGyCpUSiblokDMKKciQM4TEABWAFqCkVDT1NFTUZMWEZyCExMWDA4WU44CkEIypgBEgQ3NDU2GKlRIEMo_JyJAzDVnYkDOExAAVgBagpFQ09TRU1GTFhGcghMTFgwOFlOOHoKCMGCARIENDU0NgquAQpBCMqYARIEODM0OBhDIK4cKIi9iwMwlr6LAzhWQABYAWoKRUNPU0VNRkxYRnIIVkxYMDhZTjh6CgjBggESBDEwNjEKMwjKmAESATkYrhwgpxso3r6LAzD-xIsDOFZAAVgBagpFQ09TRU1GTFhGcghWTFgwOFlOOAo0CMqYARICOTUYpxsghnso08WLAzDfxosDOFZAAVgBagpFQ09TRU1GTFhGcghWTFgwOFlOOBIKCAEQARgBKgJKTBgBIgQIARABKAIoBCgGMAE) ![Japan Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/JL.gif) Mon, May 4 - Tue, May 12 GMP Seoul DCA Washington $1,286 Roundtrip found 6 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:GMP,to:DCA,departure:5/4/2026TANYT&leg2=from:DCA,to:GMP,departure:5/12/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1285.69&airProductToken=AQquAQo0CMqYARICOTAYhnsgpxsohISMAzCLhYwDOExAAFgBagpFQ09TRU1GTFhGcghMTFgwOFlOOAozCMqYARIBNBinGyCpUSi2iYwDMMKPjAM4TEABWAFqCkVDT1NFTUZMWEZyCExMWDA4WU44CkEIypgBEgQ3NDU2GKlRIEMo05iMAzC9mYwDOExAAVgBagpFQ09TRU1GTFhGcghMTFgwOFlOOHoKCMGCARIENDUyMgq8AQpBCMqYARIENzQ1ORhDIKlRKJjjjAMw7-OMAzhWQABYAWoKRUNPU0VNRkxYRnIIVkxYMDhZTjh6CgjBggESBDQ1NTEKQQjKmAESBDcwMDkYqVEgpxsopuWMAzCH7IwDOFZAAVgBagpFQ09TRU1GTFhGcghWTFgwOFlOOHoJCMGCARIDMTY3CjQIypgBEgI5MxinGyCGeyjr7IwDMPftjAM4VkABWAFqCkVDT1NFTUZMWEZyCFZMWDA4WU44EgoIARABGAEqAkpMGAEiBAgBEAEoAigEKAYwAQ) ![All Nippon Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/NH.gif) Sun, Dec 27 - Sun, Jan 10 GMP Seoul DCA Washington $1,611 Roundtrip found 2 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:GMP,to:DCA,departure:12/27/2026TANYT&leg2=from:DCA,to:GMP,departure:1/10/2027TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1610.13&airProductToken=AQqlAQo1CM6QARIDODY4GIZ7IKcbKOrzoAMw5_SgAzhRQABYAWoKRUNPQ0xBU1NJQ3IIUUhBNVREWVEKNQjOkAESAzExMhinGyCuHCjV-qADMKCAoQM4UUABWAFqCkVDT0NMQVNTSUNyCFFIQTVURFlRCjUIzpABEgQ3NzAwGK4cIEMohIGhAzDtgaEDOFFAAVgBagpFQ09DTEFTU0lDcghRSEE1VERZUQqlAQo1CM6QARIENzU1ORhDIK4cKJSVogMwm5aiAzhTQABYAWoKRUNPQ0xBU1NJQ3IIU0hBNVREWVMKNQjOkAESAzExMRiuHCCnGyjhlqIDMJWdogM4U0ABWAFqCkVDT0NMQVNTSUNyCFNIQTVURFlTCjUIzpABEgM4NjEYpxsghnso0aKiAzDso6IDOFNAAVgBagpFQ09DTEFTU0lDcghTSEE1VERZUxIMCAEQARgBKgJOSDIAGAEiBAgBEAEoAigDKAQwAQ) ## Alternative airports near Washington Prices were available within the past 7 days. Prices and availability are subject to change. [](https://www.expedia.com/Flights-Search?leg1=from:GMP,to:IAD,departure:4/13/2026TANYT&leg2=from:IAD,to:GMP,departure:4/17/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) IAD Washington Dulles Intl. 36 min [Flights from $3,382 ](https://www.expedia.com/Flights-Search?leg1=from:GMP,to:IAD,departure:4/13/2026TANYT&leg2=from:IAD,to:GMP,departure:4/17/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) ## Travel information | Origin airport | Gimpo Intl. | | ------------------- | ---------------------------------- | | Destination airport | Ronald Reagan Washington National | | Airlines serving | All Nippon Airways, Japan Airlines | | Roundtrip price | $1,187 | | Distance | 6943 mi | ## Book with confidence # Seoul to Washington Flights The cheapest times to fly from Seoul to Washington On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seoul to Washington are during the month of September. You can find some of the cheapest flights from Seoul to Washington with Expedia's search tool and vast selection of airlines. The best time to book a flight from Seoul to Washington Sunday is one of the best days to book for cheap flights from Seoul to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance. How to find cheap round-trip tickets from Seoul to Washington Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seoul to Washington in 2026\. You can also book with separate airlines for your outbound and return journeys, from $701 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference\*. This is available for a small fee, and is free to One Key Gold and Platinum tier members. Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seoul to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps. You could also save big by booking one of Expedia's [vacation packages](https://www.expedia.com/package-deals). Bundling together your Seoul to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures. \*Terms apply. Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023\. The percentages you see are averages. \*Flight schedules are subject to change. \*Available to One Key members.