$156 Cheap Flights from Guam (GUM) to Seoul (ICN)

View $156 flight on Fri, Oct 3, 2025Opens in a new window

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

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Guam to Seoul (GUM-ICN)

Prices were available within the past 7 days and start at $156 for one-way flights and $313 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

T'Way Air
Wed, Sep 10 - Tue, Sep 16
GUM
Guam
ICN
Seoul
$313 Roundtrip, found 1 hour ago
$313
Roundtrip
found 1 hour ago
Select T'Way Air flight, departing Wed, Sep 10 from Guam to Seoul, returning Tue, Sep 16, priced at $313 found 1 hour ago
T'Way Air
Wed, Sep 10 - Wed, Sep 17
GUM
Guam
ICN
Seoul
$323 Roundtrip, found 1 hour ago
$323
Roundtrip
found 1 hour ago
Select T'Way Air flight, departing Wed, Sep 10 from Guam to Seoul, returning Wed, Sep 17, priced at $323 found 1 hour ago
Jeju Air
Mon, Sep 1 - Tue, Sep 9
GUM
Guam
ICN
Seoul
$327 Roundtrip, found 6 hours ago
$327
Roundtrip
found 6 hours ago
Select Jeju Air flight, departing Mon, Sep 1 from Guam to Seoul, returning Tue, Sep 9, priced at $327 found 6 hours ago
Jeju Air
Tue, Aug 19 - Tue, Aug 26
GUM
Guam
ICN
Seoul
$332 Roundtrip, found 6 hours ago
$332
Roundtrip
found 6 hours ago
Select Jeju Air flight, departing Tue, Aug 19 from Guam to Seoul, returning Tue, Aug 26, priced at $332 found 6 hours ago
Jeju Air
Wed, Aug 27 - Sat, Aug 30
GUM
Guam
ICN
Seoul
$335 Roundtrip, found 3 hours ago
$335
Roundtrip
found 3 hours ago
Select Jeju Air flight, departing Wed, Aug 27 from Guam to Seoul, returning Sat, Aug 30, priced at $335 found 3 hours ago
Jeju Air
Thu, Aug 28 - Sun, Aug 31
GUM
Guam
ICN
Seoul
$337 Roundtrip, found 5 hours ago
$337
Roundtrip
found 5 hours ago
Select Jeju Air flight, departing Thu, Aug 28 from Guam to Seoul, returning Sun, Aug 31, priced at $337 found 5 hours ago
Jeju Air
Mon, Aug 18 - Tue, Aug 19
GUM
Guam
ICN
Seoul
$338 Roundtrip, found 1 hour ago
$338
Roundtrip
found 1 hour ago
Select Jeju Air flight, departing Mon, Aug 18 from Guam to Seoul, returning Tue, Aug 19, priced at $338 found 1 hour ago
Korean Air
Tue, Aug 19 - Thu, Aug 21
GUM
Guam
ICN
Seoul
$368 Roundtrip, found 1 hour ago
$368
Roundtrip
found 1 hour ago
Select Korean Air flight, departing Tue, Aug 19 from Guam to Seoul, returning Thu, Aug 21, priced at $368 found 1 hour ago
Philippine Airlines
Sat, Aug 30 - Mon, Sep 1
GUM
Guam
ICN
Seoul
$586 Roundtrip, just found
$586
Roundtrip
just found
Select Philippine Airlines flight, departing Sat, Aug 30 from Guam to Seoul, returning Mon, Sep 1, priced at $586 just found
Japan Airlines
Fri, Aug 22 - Sun, Aug 24
GUM
Guam
ICN
Seoul
$1,311 Roundtrip, found 6 hours ago
$1,311
Roundtrip
found 6 hours ago
Select Japan Airlines flight, departing Fri, Aug 22 from Guam to Seoul, returning Sun, Aug 24, priced at $1,311 found 6 hours ago

Find the cheapest month to fly from Barrigada (GUM) to Seoul (ICN)

September is typically the cheapest month to fly

From $213 - $624 per traveler.

Graph displaying average flight prices per month

Alternative airports near Seoul

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

Select flight to Gimpo Intl. GMP. Closest option available. Average driving time to city center is 20 minutes. Flights from $457
GMP
Gimpo Intl.
Closest
Average driving time to city center20 min
Flights from $457
Flights from Guam (GUM) to Seoul (ICN)
Origin airport
A.B. Won Pat Intl.
Destination airport
Incheon Intl.
Airlines serving
Japan Airlines, Jeju Air, Korean Air, Philippine Airlines, T'Way Air
Roundtrip price
$313
Distance
2004 mi
Average flight time
3 hours 46 mins

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 September. 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 $156 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 Incheon Intl. Airport (ICN) cost?
Score cheap return flights from A.B. Won Pat Intl. Airport (GUM) to Incheon Intl. Airport (ICN) starting from $325. Book your seat and be on your way. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Jeju Air and Korean Air flight leaving GUM on August 12 2025 and touching down at ICN. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from GUM to ICN?
The cheapest flights from GUM to ICN are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from A.B. Won Pat Intl. Airport (GUM) to Incheon Intl. Airport (ICN)?
Enjoy an uninterrupted journey to Incheon Intl. Airport (ICN). 4 airlines operate nonstop flights from A.B. Won Pat Intl. Airport (GUM), including:

  • Jin Air
  • Jeju Air
  • Korean Air

What is the cheapest airline that flies from GUM to ICN?
Right now, the cheapest carrier operating one-way flights from GUM to ICN is Jeju Air. You can take off on this route from $156. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from GUM on September 18 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from A.B. Won Pat Intl. Airport (GUM) to Incheon Intl. Airport (ICN)?
When taking off from A.B. Won Pat Intl. Airport (GUM), you can choose from an average of 5 daily direct flights to Incheon Intl. Airport (ICN).
What are the most popular departure times for flights from A.B. Won Pat Intl. Airport (GUM) to Incheon Intl. Airport (ICN)?
More passengers fly between GUM and ICN at 4 PM than at any other time of day. Rather go when it's quieter? Try choosing a quieter departure window and you could save on your fare as well.
What day of the week has the most flights from GUM to ICN?
If you depart on a Monday, you'll get the largest range of choices for flights from A.B. Won Pat Intl. Airport (GUM) to Incheon Intl. Airport (ICN).
What is the earliest flight from A.B. Won Pat Intl. Airport (GUM) to Incheon Intl. Airport (ICN)?
A.B. Won Pat Intl. Airport (GUM)'s first flight to Incheon Intl. Airport (ICN) leaves at approximately 4:55AM UTC+10. With a total flight time of 5h, you'll arrive at around 8:55AM UTC+9.
How long does it take to fly from A.B. Won Pat Intl. Airport (GUM) to Incheon Intl. Airport (ICN)?
The average flight duration from GUM to ICN is 4 hours and 56 minutes, covering a distance of 2,000 mi.
What airline has the least delays from GUM to ICN?
With 94% of journeys typically arriving as scheduled, Delta Air Lines has the best on-time performance for nonstop flights from A.B. Won Pat Intl. Airport (GUM) to Incheon Intl. Airport (ICN). To check your flight status and receive notifications about any changes, simply head to the Expedia App.
What is the best time to fly from A.B. Won Pat Intl. Airport (GUM) to Incheon Intl. Airport (ICN)?
To avoid potential delays on the A.B. Won Pat Intl. Airport (GUM) to Incheon Intl. Airport (ICN) route, aim to fly before 3 PM. Later departures have a 22% higher chance of being canceled.**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)?
Incheon Intl. Airport (ICN) is the only airport in Seoul with direct flights from A.B. Won Pat Intl. Airport (GUM). Explore your options and discover cheap fares on Expedia.
Is it cheaper to buy a plane ticket from A.B. Won Pat Intl. Airport (GUM) to Incheon Intl. Airport (ICN) last-minute?
Booking your plane ticket from GUM to ICN right before your trip is typically more expensive. But if there's some wiggle room with your schedule, you could snag a cheap last-minute fare.
Is it cheaper to book a GUM to ICN flight and hotel package?
Securing a GUM to ICN flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Choose from our extensive range of hotels and then add flights, car rentals and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from A.B. Won Pat Intl. Airport (GUM) to Incheon Intl. Airport (ICN)?
If you reserved your GUM to ICN flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.

Explore a world of travel with Expedia

*Available to One Key members.