The cheapest times to fly from GMP to PHX are

  • March 12th to May 6th (except the weeks of March 19th and April 23rd)
  • May 21st to July 1st
  • August 20th to September 2nd
  • October 1st to December 9th

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 GMP to PHX is mid October. Prices can be as high as $4433 for Saturday flights during early September, or as low as $821 for Tuesday flights around mid October.


When to Fly to Phoenix

Flying from Seoul (GMP) to Phoenix, AZ (PHX) will usually cost between $862 to $1726 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid October with an average ticket price of $857. Due to high demand the most expensive time to fly is early September, with an average price of $1857. Planning your trip to low-cost times can easily save you $1001 on economy flights and even more on first-class flights. Generally, any price below $1045 can be considered a good price for a round-trip GMP to PHX flight.

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

GMP to PHX Flight Prices

Compared to other flights, the GMP to PHX flight is priced close to the average and costs less than the average flight leaving from Seoul. 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. Saturdays are the most expensive days to fly to Phoenix, and Fridays are the most expensive days to return to Seoul. 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 $1066. Return trip prices are from the PHX to GMP 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 GMP to PHX 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.


Flight Hacking GMP to PHX

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 GMP to PHX — but Champion Traveler does!

Hack #1: Los Angeles, CA (GMP > LAX > PHX)

  • Price for both tickets: $895
  • Average savings: $150 (14.35%)

See GMP to SEA flights

Hack #2: Seattle, WA (GMP > SEA > PHX)

  • Price for both tickets: $899
  • Average savings: $146 (13.97%)

See GMP to LAX flights

Hack #3: San Francisco, CA (GMP > SFO > PHX)

  • Price for both tickets: $950
  • Average savings: $96 (9.14%)

See GMP to SFO flights


Flight Questions Answered

Still have questions about flying from GMP to PHX? 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 Eastern, China Southern, Delta, Hawaiian, JAL, Korean Air, Lufthansa, SWISS, United, and potentially more during busy seasons.

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

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

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

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

How many flights go between Seoul and Phoenix, AZ?

It depends on the day of the week and the date, but a typical day might have around 43 available flights from GMP to PHX.


Airport Location Info


Departing Airport

Origination codeGMP
Origination airport nameGimpo International Airport
CountrySouth Korea

Return Airport

Destination codePHX
Destination airport namePhoenix Sky Harbor International Airport
CityPhoenix, AZ
Countrythe United States


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.