The cheapest times to fly from BKK to CJU are

  • January 29th to February 11th
  • March 5th to March 18th
  • June 11th to December 2nd (except the weeks of June 18th and July 2nd)

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 BKK to CJU is mid August. Prices can be as high as $1747 for Wednesday flights during early May, or as low as $360 for Saturday flights around mid August.


When to Fly to Jeju-si

Flying from Bangkok (BKK) to Jeju (CJU) will usually cost between $482 to $790 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid August with an average ticket price of $483. Due to high demand the most expensive time to fly is early May, with an average price of $929. Planning your trip to low-cost times can easily save you $445 on economy flights and even more on first-class flights. Generally, any price below $640 can be considered a good price for a round-trip BKK to CJU flight.

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

BKK to CJU Flight Prices

Compared to other flights, the BKK to CJU flight is cheaper than the average and costs less than the average flight leaving from Bangkok. The average price per mile (for a direct flight) is $0.19, which is below average.


Flight Prices by Day of the Week

Saturday is usually the cheapest day to fly to CJU, and Tuesday the cheapest day to fly back into BKK. Wednesdays are the most expensive days to fly to Jeju-si, and Sundays are the most expensive days to return to Bangkok. Selecting flights on the least expensive days could save you up to $87 (13%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Saturday and returning a week later will cost an average of $596. Return trip prices are from the CJU to BKK 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 BKK to CJU can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 4 hour 48 minutes may be realistic.


Flight Hacking BKK to CJU

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 BKK to CJU — but Champion Traveler does!

Hack #1: Kuala Lumpur (BKK > KUL > CJU)

  • Price for both tickets: $505
  • Average savings: $135 (21.09%)

See BKK to PUS flights

Hack #2: Busan (BKK > PUS > CJU)

  • Price for both tickets: $521
  • Average savings: $119 (18.59%)

See BKK to KUL flights

Hack #3: Hong Kong (BKK > HKG > CJU)

  • Price for both tickets: $584
  • Average savings: $56 (8.75%)

See BKK to HKG flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 27 major airlines flying this route most often: Air Busan, Air China, Asiana, Bangkok Airways, Cathay Dragon, Cathay Pacific, China Airlines, China Eastern, China Southern, EASTAR JET, EVA Air, Finnair, Hainan, Hong Kong Express, JAL, Jeju Air, Jin Air, Juneyao Airlines, Korean Air, Okay Airways, Qantas, Shenzhen, Singapore Airlines, Spring, T’Way Air, Vietnam Airlines, Xiamen, and potentially more during busy seasons.

How far away is it from Jeju International Airport to Suvarnabhumi International Airport?

The distance between the two airports is roughly 2117 miles or 3407 kilometers.

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

The real-world flight time for a nonstop BKK to CJU flight is about 4 hour 48 minutes.

How many flights go between Bangkok and Jeju?

It depends on the day of the week and the date, but a typical day might have around 85 available flights from BKK to CJU.


Airport Location Info


Departing Airport

Origination code BKK
Origination airport name Suvarnabhumi International Airport
City Bangkok
Country Thailand
Latitude 13.7
Longitude 100.7

Return Airport

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


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.