The cheapest times to fly from CJU to SAN are

  • January 15th to April 1st
  • October 8th to December 31st (except the week of December 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 CJU to SAN is early to mid October. Prices can be as high as $2033 for Sunday flights during early January, or as low as $923 for Tuesday flights around early to mid October.


When to Fly to San Diego

Flying from Jeju (CJU) to San Diego, CA (SAN) will usually cost between $941 to $1607 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early to mid October with an average ticket price of $969. Due to high demand the most expensive time to fly is early January, with an average price of $1753. Planning your trip to low-cost times can easily save you $784 on economy flights and even more on first-class flights. Generally, any price below $1182 can be considered a good price for a round-trip CJU to SAN flight.

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

CJU to SAN Flight Prices

Compared to other flights, the CJU to SAN flight is slightly more expensive than the average and costs slightly more than the average flight leaving from Jeju-si. 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 fly to SAN, and Thursday the cheapest day to fly back into CJU. Sundays are the most expensive days to fly to San Diego, and Fridays are the most expensive days to return to Jeju-si. Selecting flights on the least expensive days could save you up to $187 (13%) 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 $1113. Return trip prices are from the SAN to CJU 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 CJU to SAN can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 12 hour 16 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 CJU to SAN while comparing.

Destination alternative #1: Los Angeles International Airport (LAX) in Los Angeles, CA

  • 109 miles (175 km) away from SAN
  • Usually 14.47% less expensive than SAN
  • 1-layover flights available

See CJU to LAX flights


Flight Hacking CJU to SAN

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 CJU to SAN — but Champion Traveler does!

Hack #1: Busan (CJU > PUS > SAN)

  • Price for both tickets: $953
  • Average savings: $229 (19.37%)

See CJU to HKG flights

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

  • Price for both tickets: $1084
  • Average savings: $98 (8.29%)

See CJU to PUS flights

Hack #3: Seoul (CJU > GMP > SAN)

  • Price for both tickets: $1090
  • Average savings: $92 (7.78%)

See CJU to GMP flights


Flight Questions Answered

Still have questions about flying from CJU to SAN? We’ve got answers.

Which airlines fly this route?

You can find 9 major airlines flying this route most often: Air Canada, Air China, Asiana, Cathay Pacific, China Eastern, China Southern, JAL, Korean Air, United, and potentially more during busy seasons.

How far away is it from San Diego International Airport to Jeju International Airport?

The distance between the two airports is roughly 6266 miles or 10084 kilometers.

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

The real-world flight time for a nonstop CJU to SAN flight is about 12 hour 16 minutes.

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

It depends on the day of the week and the date, but a typical day might have around 17 available flights from CJU to SAN.


Airport Location Info


Departing Airport

Origination code CJU
Origination airport name Jeju International Airport
City Jeju
Country South Korea
Latitude 33.5
Longitude 126.5

Return Airport

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


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.