The cheapest times to fly from SAN to GMP are

  • January 1st to April 15th (except the weeks of January 15th and January 22nd)
  • August 27th to December 2nd (except the week of 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 SAN to GMP is early to mid February. Prices can be as high as $1917 for Friday flights during mid December, or as low as $980 for Tuesday flights around early to mid February.


When to Fly to Seoul

Flying from San Diego, CA (SAN) to Seoul (GMP) will usually cost between $1046 to $1482 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early to mid February with an average ticket price of $1063. Due to high demand the most expensive time to fly is mid December, with an average price of $1569. Planning your trip to low-cost times can easily save you $505 on economy flights and even more on first-class flights. Generally, any price below $1149 can be considered a good price for a round-trip SAN to GMP flight.

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

SAN to GMP Flight Prices

Compared to other flights, the SAN to GMP flight is slightly more expensive than the average and costs slightly more than the average flight leaving from San Diego. The average price per mile (for a direct flight) is $0.12, 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 San Diego. Selecting flights on the least expensive days could save you up to $172 (14%) 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 $1142. Return trip prices are from the GMP to SAN 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 SAN to GMP can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 11 hour 54 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 SAN to GMP while comparing.

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

  • 20 miles (32 km) away from GMP
  • Usually 13.19% less expensive than GMP
  • 1-layover flights available

See SAN to ICN flights


Flight Hacking SAN 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 SAN to GMP — but Champion Traveler does!

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

  • Price for both tickets: $772
  • Average savings: $377 (32.83%)

See SAN to PEK flights

Hack #2: Hong Kong (SAN > HKG > GMP)

  • Price for both tickets: $990
  • Average savings: $159 (13.84%)

See SAN to HKG flights

Hack #3: Shanghai (SAN > SHA > GMP)

  • Price for both tickets: $1033
  • Average savings: $116 (10.06%)

See SAN to SHA flights


Flight Questions Answered

Still have questions about flying from SAN 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 San Diego International Airport?

The distance between the two airports is roughly 6070 miles or 9769 kilometers.

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

The real-world flight time for a nonstop SAN to GMP flight is about 11 hour 54 minutes.

How many flights go between San Diego, CA and Seoul?

It depends on the day of the week and the date, but a typical day might have around 39 available flights from SAN to GMP.


Airport Location Info


Departing Airport

Origination code SAN
Origination airport name San Diego International Airport
City San Diego, CA
Country the United States
Latitude 32.7
Longitude -117.2

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.