The cheapest times to fly from PHX to GMP are

  • January 1st to April 15th (except the week of March 26th)
  • August 20th to December 2nd (except the weeks of September 10th, September 17th, and October 1st)

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 PHX to GMP is mid November. Prices can be as high as $2698 for Friday flights during early to mid May, or as low as $934 for Tuesday flights around mid November.


When to Fly to Seoul

Flying from Phoenix, AZ (PHX) to Seoul (GMP) will usually cost between $935 to $1589 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid November with an average ticket price of $951. Due to high demand the most expensive time to fly is early to mid May, with an average price of $1742. Planning your trip to low-cost times can easily save you $790 on economy flights and even more on first-class flights. Generally, any price below $1040 can be considered a good price for a round-trip PHX to GMP flight.

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

PHX to GMP Flight Prices

Compared to other flights, the PHX to GMP flight is priced close to the average and costs slightly more than the average flight leaving from Phoenix. The average price per mile (for a direct flight) is $0.1, 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. Fridays are the most expensive days to fly to Seoul, and Saturdays are the most expensive days to return to Phoenix. Selecting flights on the least expensive days could save you up to $140 (11%) 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 $1090. Return trip prices are from the GMP to PHX 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 PHX to GMP can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 12 hour 13 minutes may not be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from PHX to GMP while comparing.

Destination alternative #1: Incheon International Airport (ICN) in Seoul

  • 20 miles (32 km) away from GMP
  • Usually 13.17% less expensive than GMP
  • 1-layover flights available

See PHX to ICN flights


Flight Hacking PHX to GMP

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from PHX to GMP — but Champion Traveler does!

Hack #1: Beijing (PHX > PEK > GMP)

  • Price for both tickets: $944
  • Average savings: $96 (9.23%)

See PHX to PEK flights


Flight Questions Answered

Still have questions about flying from PHX to GMP? We’ve got answers.

Which airlines fly this route?

You can find 16 major airlines flying this route most often: Air Canada, Air China, Alaska, American, ANA, Asiana, Austrian, China Airlines, China Eastern, China Southern, Delta, EVA Air, Hawaiian, JAL, Korean Air, United, and potentially more during busy seasons.

How far away is it from Gimpo International Airport to Phoenix Sky Harbor International Airport?

The distance between the two airports is roughly 6244 miles or 10049 kilometers.

How long does it take to fly from PHX to GMP?

The real-world flight time for a nonstop PHX to GMP flight is about 12 hour 13 minutes.

How many flights go between Phoenix, AZ and Seoul?

It depends on the day of the week and the date, but a typical day might have around 40 available flights from PHX to GMP.


Airport Location Info


Departing Airport

Origination code PHX
Origination airport name Phoenix Sky Harbor International Airport
City Phoenix, AZ
Country the United States
Latitude 33.4
Longitude -112

Return Airport

Destination code GMP
Destination airport name Gimpo International Airport
City Seoul
Country South Korea
Latitude 37.6
Longitude 126.8


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.