$603 Cheap Flights from Seoul (GMP) to Baltimore (BWI)

View $603 flight on Thu, Sep 11, 2025Opens in a new window

Popular airlines from Gimpo Intl. Airport (GMP) to Baltimore Washington Intl. Airport (BWI)

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Cheap Flights from Seoul to Baltimore (GMP-BWI)

Prices were available within the past 7 days and start at $603 for one-way flights and $1,257 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

All Nippon Airways
Thu, Sep 4 - Wed, Sep 17
GMP
Seoul
BWI
Baltimore
$1,257 Roundtrip, found 1 day ago
$1,257
Roundtrip
found 1 day ago
Select All Nippon Airways flight, departing Thu, Sep 4 from Seoul to Baltimore, returning Wed, Sep 17, priced at $1,257 found 1 day ago
Japan Airlines
Thu, Sep 4 - Wed, Sep 17
GMP
Seoul
BWI
Baltimore
$1,280 Roundtrip, found 1 day ago
$1,280
Roundtrip
found 1 day ago
Select Japan Airlines flight, departing Thu, Sep 4 from Seoul to Baltimore, returning Wed, Sep 17, priced at $1,280 found 1 day ago
Japan Airlines
Thu, Sep 4 - Wed, Sep 17
GMP
Seoul
BWI
Baltimore
$1,335 Roundtrip, found 1 day ago
$1,335
Roundtrip
found 1 day ago
Select Japan Airlines flight, departing Thu, Sep 4 from Seoul to Baltimore, returning Wed, Sep 17, priced at $1,335 found 1 day ago
All Nippon Airways
Thu, Mar 12 - Sat, Mar 21
GMP
Seoul
BWI
Baltimore
$1,384 Roundtrip, found 3 days ago
$1,384
Roundtrip
found 3 days ago
Select All Nippon Airways flight, departing Thu, Mar 12 from Seoul to Baltimore, returning Sat, Mar 21, priced at $1,384 found 3 days ago
Asiana Airlines
Fri, Jul 18 - Sat, Jul 26
GMP
Seoul
BWI
Baltimore
$1,413 Roundtrip, found 2 days ago
$1,413
Roundtrip
found 2 days ago
Select Asiana Airlines flight, departing Fri, Jul 18 from Seoul to Baltimore, returning Sat, Jul 26, priced at $1,413 found 2 days ago
Japan Airlines
Tue, Aug 26 - Tue, Sep 2
GMP
Seoul
BWI
Baltimore
$1,426 Roundtrip, found 3 days ago
$1,426
Roundtrip
found 3 days ago
Select Japan Airlines flight, departing Tue, Aug 26 from Seoul to Baltimore, returning Tue, Sep 2, priced at $1,426 found 3 days ago
Asiana Airlines
Fri, Jul 18 - Sat, Jul 26
GMP
Seoul
BWI
Baltimore
$1,434 Roundtrip, found 2 days ago
$1,434
Roundtrip
found 2 days ago
Select Asiana Airlines flight, departing Fri, Jul 18 from Seoul to Baltimore, returning Sat, Jul 26, priced at $1,434 found 2 days ago
All Nippon Airways
Thu, Mar 12 - Sat, Mar 21
GMP
Seoul
BWI
Baltimore
$1,457 Roundtrip, found 3 days ago
$1,457
Roundtrip
found 3 days ago
Select All Nippon Airways flight, departing Thu, Mar 12 from Seoul to Baltimore, returning Sat, Mar 21, priced at $1,457 found 3 days ago
Japan Airlines
Mon, Aug 25 - Mon, Sep 1
GMP
Seoul
BWI
Baltimore
$1,479 Roundtrip, found 4 days ago
$1,479
Roundtrip
found 4 days ago
Select Japan Airlines flight, departing Mon, Aug 25 from Seoul to Baltimore, returning Mon, Sep 1, priced at $1,479 found 4 days ago
Air China
Fri, Jul 18 - Fri, Jul 25
GMP
Seoul
BWI
Baltimore
$3,089 Roundtrip, found 12 hours ago
$3,089
Roundtrip
found 12 hours ago
Select Air China flight, departing Fri, Jul 18 from Seoul to Baltimore, returning Fri, Jul 25, priced at $3,089 found 12 hours ago

Alternative airports near Baltimore

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ronald Reagan Washington National DCA. Cheapest option available. Average driving time to city center is 57 minutes. Flights from $1,490
DCA
Ronald Reagan Washington National
Cheapest
Average driving time to city center57 min
Flights from $1,490
Flights from Seoul (GMP) to Baltimore (BWI)
Origin airport
Gimpo Intl.
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Airlines serving
Air China, All Nippon Airways, Japan Airlines
Roundtrip price
$1,256
Distance
6928 mi

Seoul to Baltimore Flights

The cheapest times to fly from Seoul to Baltimore

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 Baltimore are during the month of September. You can find some of the cheapest flights from Seoul to Baltimore with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seoul to Baltimore

Sunday is one of the best days to book for cheap flights from Seoul to Baltimore: 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 Baltimore

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 Baltimore in 2025. You can also book with separate airlines for your outbound and return journeys, from $603 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 Baltimore 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. Bundling together your Seoul to Baltimore 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.

 

Frequently asked questions

How much does a flight from Gimpo Intl. Airport (GMP) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) cost?
Discover the latest flight deals from GMP to BWI by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from GMP to BWI?
The cheapest flights from GMP to BWI are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from GMP to BWI?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from GMP to BWI. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Gimpo Intl. Airport (GMP) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
You'll need to hop on a flight with a layover when traveling from Gimpo Intl. Airport (GMP) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from GMP to BWI?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can vary depending on a number of factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Gimpo Intl. Airport (GMP) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
To land at Baltimore Washington Intl. Thurgood Marshall Airport (BWI) on time, opt for a flight that leaves Gimpo Intl. Airport (GMP) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Gimpo Intl. Airport (GMP) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) last-minute?
Holding off until just before your departure to book your flight from GMP to BWI often results in higher prices. While it's possible to find some last-minute discounts, they're not always guaranteed. Keep your travel plans flexible to boost your chances of scoring a bargain.
Is it cheaper to book a GMP to BWI flight and hotel package?
You'll generally save money by securing a GMP to BWI flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. Once you've chosen your ideal flights and accommodations, you can add extras such as car rentals, tours and activities.
Can I cancel or change the date of my flight from Gimpo Intl. Airport (GMP) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
In most cases, you can modify or cancel your GMP to BWI flight. However, there may be additional fees, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you need further information, go to our Customer Service portal.

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*Available to One Key members.