The cheapest times to fly from GUM to ICN are

  • February 19th to March 25th
  • May 7th to July 15th
  • August 20th to November 18th (except the weeks of September 3rd and September 10th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from GUM to ICN is mid to late September. Prices can be as high as $706 for Sunday flights during early August, or as low as $292 for Tuesday flights around mid to late September.


When to Fly to Seoul

Flying from Guam, GU (GUM) to Seoul (ICN) will usually cost between $335 to $589 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid to late September with an average ticket price of $333. Due to high demand the most expensive time to fly is early August, with an average price of $571. Planning your trip to low-cost times can easily save you $238 on economy flights and even more on first-class flights. Generally, any price below $430 can be considered a good price for a round-trip GUM to ICN flight.

See below for a graph of average weekly prices for the GUM to ICN route. All prices are for round-trip tickets in USD.

GUM to ICN Flight Prices

Compared to other flights, the GUM to ICN flight is much cheaper than the average and costs much less than the average flight leaving from Guam. The average price per mile (for a direct flight) is $0.13, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $42 (9%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $413. Return trip prices are from the ICN to GUM flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from GUM to ICN can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 4 hour 35 minutes may be realistic.


Flight Questions Answered

Still have questions about flying from GUM to ICN? We’ve got answers.

Which airlines fly this route?

You can find 19 major airlines flying this route most often: Air India, Air Seoul, ANA, Asiana, Cathay Pacific, Cebu Pacific, China Airlines, China Southern, Delta, EVA Air, Hawaiian, JAL, Jeju Air, Jin Air, Korean Air, Philippine Airlines, S7, T’Way Air, United, and potentially more during busy seasons.

How far away is it from Incheon International Airport to Guam International Airport?

The distance between the two airports is roughly 2005 miles or 3227 kilometers.

How long does it take to fly from GUM to ICN?

The real-world flight time for a nonstop GUM to ICN flight is about 4 hour 35 minutes.

How many flights go between Guam, GU and Seoul?

It depends on the day of the week and the date, but a typical day might have around 37 available flights from GUM to ICN.


Airport Location Info


Departing Airport

Origination code GUM
Origination airport name Guam International Airport
City Guam, GU
Country the United States
Latitude 13.5
Longitude 144.8

Return Airport

Destination code ICN
Destination airport name Incheon International Airport
City Seoul
Country South Korea
Latitude 37.5
Longitude 126.4


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.