$260 Cheap Flights from Guam (GUM) to Seoul (GMP)

View $260 flight on Wed, Oct 22, 2025Opens in a new window

Popular airlines from Barrigada - A.B. Won Pat International Airport (GUM) to Gimpo Intl. Airport (GMP)

Cheap Flights from Guam to Seoul (GUM-GMP)

Prices were available within the past 7 days and start at $260 for one-way flights and $424 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Korean Air
Tue, Oct 21 - Fri, Oct 24
GUM
Guam
GMP
Seoul
$424 Roundtrip, found 3 hours ago
$424
Roundtrip
found 3 hours ago
Select Korean Air flight, departing Tue, Oct 21 from Guam to Seoul, returning Fri, Oct 24, priced at $424 found 3 hours ago
Korean Air
Thu, Oct 16 - Sun, Oct 19
GUM
Guam
GMP
Seoul
$454 Roundtrip, found 1 hour ago
$454
Roundtrip
found 1 hour ago
Select Korean Air flight, departing Thu, Oct 16 from Guam to Seoul, returning Sun, Oct 19, priced at $454 found 1 hour ago
Korean Air
Mon, Oct 13 - Sat, Oct 18
GUM
Guam
GMP
Seoul
$540 Roundtrip, found 4 days ago
$540
Roundtrip
found 4 days ago
Select Korean Air flight, departing Mon, Oct 13 from Guam to Seoul, returning Sat, Oct 18, priced at $540 found 4 days ago
Korean Air
Tue, Oct 21 - Fri, Oct 24
GUM
Guam
GMP
Seoul
$549 Roundtrip, found 3 hours ago
$549
Roundtrip
found 3 hours ago
Select Korean Air flight, departing Tue, Oct 21 from Guam to Seoul, returning Fri, Oct 24, priced at $549 found 3 hours ago
Korean Air
Mon, Oct 13 - Thu, Oct 16
GUM
Guam
GMP
Seoul
$554 Roundtrip, found 12 hours ago
$554
Roundtrip
found 12 hours ago
Select Korean Air flight, departing Mon, Oct 13 from Guam to Seoul, returning Thu, Oct 16, priced at $554 found 12 hours ago
Korean Air
Thu, Oct 16 - Sun, Oct 19
GUM
Guam
GMP
Seoul
$564 Roundtrip, found 1 hour ago
$564
Roundtrip
found 1 hour ago
Select Korean Air flight, departing Thu, Oct 16 from Guam to Seoul, returning Sun, Oct 19, priced at $564 found 1 hour ago
Korean Air
Mon, Oct 13 - Mon, Oct 20
GUM
Guam
GMP
Seoul
$595 Roundtrip, found 3 days ago
$595
Roundtrip
found 3 days ago
Select Korean Air flight, departing Mon, Oct 13 from Guam to Seoul, returning Mon, Oct 20, priced at $595 found 3 days ago
Korean Air
Mon, Oct 13 - Sat, Oct 18
GUM
Guam
GMP
Seoul
$610 Roundtrip, found 4 days ago
$610
Roundtrip
found 4 days ago
Select Korean Air flight, departing Mon, Oct 13 from Guam to Seoul, returning Sat, Oct 18, priced at $610 found 4 days ago
Korean Air
Mon, Oct 13 - Thu, Oct 16
GUM
Guam
GMP
Seoul
$624 Roundtrip, found 12 hours ago
$624
Roundtrip
found 12 hours ago
Select Korean Air flight, departing Mon, Oct 13 from Guam to Seoul, returning Thu, Oct 16, priced at $624 found 12 hours ago
Korean Air
Thu, Oct 16 - Sun, Oct 19
GUM
Guam
GMP
Seoul
$654 Roundtrip, found 1 hour ago
$654
Roundtrip
found 1 hour ago
Select Korean Air flight, departing Thu, Oct 16 from Guam to Seoul, returning Sun, Oct 19, priced at $654 found 1 hour ago
Korean Air
Mon, Oct 13 - Thu, Oct 16
GUM
Guam
GMP
Seoul
$664 Roundtrip, found 12 hours ago
$664
Roundtrip
found 12 hours ago
Select Korean Air flight, departing Mon, Oct 13 from Guam to Seoul, returning Thu, Oct 16, priced at $664 found 12 hours ago
JIN AIR
Mon, Oct 13 - Thu, Oct 30
GUM
Guam
GMP
Seoul
$1,159 Roundtrip, found 2 days ago
$1,159
Roundtrip
found 2 days ago
Select JIN AIR flight, departing Mon, Oct 13 from Guam to Seoul, returning Thu, Oct 30, priced at $1,159 found 2 days ago

Alternative airports near Seoul

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

Select flight to Incheon Intl. ICN. Cheapest option available. Average driving time to city center is 47 minutes. Flights from $345
ICN
Incheon Intl.
Cheapest
Average driving time to city center47 min
Flights from $345
Flights from Guam (GUM) to Seoul (GMP)
Origin airport
A.B. Won Pat Intl.
Destination airport
Gimpo Intl.
Airlines serving
Korean Air
Roundtrip price
$424
Distance
1997 mi

Guam to Seoul Flights

The cheapest times to fly from Guam to Seoul

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

 

The best time to book a flight from Guam to Seoul

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

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 Guam to Seoul in 2025. You can also book with separate airlines for your outbound and return journeys, from $260 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 Guam to Seoul 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 Guam to Seoul 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 A.B. Won Pat Intl. Airport (GUM) to Gimpo Intl. Airport (GMP) cost?
Lock in a cheap one-way flight from $260 or cheap return flight from $424 from A.B. Won Pat Intl. Airport (GUM) to Gimpo Intl. Airport (GMP) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from A.B. Won Pat Intl. Airport (GUM) to Gimpo Intl. Airport (GMP)?
October is the cheapest month to fly from GUM to GMP. Traveling during quieter months is often the key to finding better deals on flights.
What is the cheapest airline that flies from A.B. Won Pat Intl. Airport (GUM) to Gimpo Intl. Airport (GMP)?
Use the filter tool on Expedia to compare different airlines and find the cheapest carrier that'll take you from GUM to GMP. Then, sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from A.B. Won Pat Intl. Airport (GUM) to Gimpo Intl. Airport (GMP)?
There aren't any daily direct flights available from A.B. Won Pat Intl. Airport (GUM) to Gimpo Intl. Airport (GMP). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be on your way before you know it.
What day of the week has the most flights from GUM to GMP?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from A.B. Won Pat Intl. Airport (GUM) to Gimpo Intl. Airport (GMP)?
To touch down at Gimpo Intl. Airport (GMP) without delays, pick a flight that leaves from A.B. Won Pat Intl. Airport (GUM) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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.
What airports do you fly into for Seoul from A.B. Won Pat Intl. Airport (GUM)?
If you're on a direct flight from A.B. Won Pat Intl. Airport (GUM) to Seoul, Incheon Intl. Airport (ICN) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from A.B. Won Pat Intl. Airport (GUM) to Gimpo Intl. Airport (GMP) last-minute?
Last-minute fares from GUM to GMP are typically more expensive. To secure the lowest prices, start looking for flights as early as possible. That being said, if you're flexible with your travel dates, you may land a cheap ticket just before your departure.
Is it cheaper to book a GUM to GMP flight and hotel package?
Compared with arranging hotels and flights separately, booking a GUM to GMP flight and hotel package with Expedia could result in significant savings. Better still, having everything in one place takes the hassle out of travel planning. Just secure your flights and select from our wide range of hotels, then personalize your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from A.B. Won Pat Intl. Airport (GUM) to Gimpo Intl. Airport (GMP)?
In most instances, you can reschedule or cancel your GUM to GMP flight. However, additional charges may apply, especially if your booking was made over 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you want more information, go to our Customer Service portal.

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*Available to One Key members.