The cheapest times to fly from SFO to KWJ are

  • January 8th to May 20th (except the week of January 15th)
  • October 8th to December 9th (except the week of October 15th)

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 SFO to KWJ is early April. Prices can be as high as $2028 for Saturday flights during late December, or as low as $1052 for Tuesday flights around early April.


When to Fly to Gwangju

Flying from San Francisco, CA (SFO) to Gwangju (KWJ) will usually cost between $1073 to $1627 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early April with an average ticket price of $1091. Due to high demand the most expensive time to fly is late December, with an average price of $1684. Planning your trip to low-cost times can easily save you $593 on economy flights and even more on first-class flights. Generally, any price below $1197 can be considered a good price for a round-trip SFO to KWJ flight.

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

SFO to KWJ Flight Prices

Compared to other flights, the SFO to KWJ flight is slightly more expensive than the average and costs about as much as the average flight leaving from San Francisco. 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 fly to KWJ, and Monday the cheapest day to fly back into SFO. Saturdays are the most expensive days to fly to Gwangju, and Sundays are the most expensive days to return to San Francisco. Selecting flights on the least expensive days could save you up to $141 (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 $1214. Return trip prices are from the KWJ to SFO 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 SFO to KWJ 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 18 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 SFO to KWJ while comparing.

Destination alternative #1: Gimhae International Airport (PUS) in Busan

  • 120 miles (193 km) away from KWJ
  • Usually 22.93% less expensive than KWJ
  • 1-layover flights available

See SFO to PUS flights


Flight Questions Answered

Still have questions about flying from SFO to KWJ? We’ve got answers.

Which airlines fly this route?

You can find 6 major airlines flying this route most often: American, Asiana, JAL, Korean Air, Singapore Airlines, United, and potentially more during busy seasons.

How far away is it from Gwangju Airport to San Francisco International Airport?

The distance between the two airports is roughly 5737 miles or 9233 kilometers.

How long does it take to fly from SFO to KWJ?

The real-world flight time for a nonstop SFO to KWJ flight is about 11 hour 18 minutes.

How many flights go between San Francisco, CA and Gwangju?

It depends on the day of the week and the date, but a typical day might have around 18 available flights from SFO to KWJ.


Airport Location Info


Departing Airport

Origination codeSFO
Origination airport nameSan Francisco International Airport
CitySan Francisco, CA
Countrythe United States

Return Airport

Destination codeKWJ
Destination airport nameGwangju Airport
CountrySouth Korea


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.