The cheapest times to fly from GMP to SIN are

  • February 12th to February 25th
  • March 12th to April 22nd (except the week of March 19th)
  • May 7th to June 17th
  • October 15th to December 16th

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 SIN is late October to early November. Prices can be as high as $754 for Saturday flights during early May, or as low as $304 for Tuesday flights around late October to early November.


When to Fly to Singapore

Flying from Seoul (GMP) to Singapore (SIN) will usually cost between $326 to $626 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late October to early November with an average ticket price of $351. Due to high demand the most expensive time to fly is early May, with an average price of $626. Planning your trip to low-cost times can easily save you $275 on economy flights and even more on first-class flights. Generally, any price below $566 can be considered a good price for a round-trip GMP to SIN flight.

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

GMP to SIN Flight Prices

Compared to other flights, the GMP to SIN flight is cheaper than the average and costs much less than the average flight leaving from Seoul. 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. Saturdays are the most expensive days to fly to Singapore, and Thursdays are the most expensive days to return to Seoul. Selecting flights on the least expensive days could save you up to $94 (12%) 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 $492. Return trip prices are from the SIN 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 SIN can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 6 hour 11 minutes may not be realistic.


Flight Hacking GMP to SIN

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 SIN — but Champion Traveler does!

Hack #1: Busan (GMP > PUS > SIN)

  • Price for both tickets: $445
  • Average savings: $122 (21.47%)

See GMP to PEK flights

Hack #2: Beijing (GMP > PEK > SIN)

  • Price for both tickets: $453
  • Average savings: $113 (19.92%)

See GMP to PUS flights

Hack #3: Osaka (GMP > KIX > SIN)

  • Price for both tickets: $544
  • Average savings: $23 (3.98%)

See GMP to KIX flights


Flight Questions Answered

Still have questions about flying from GMP to SIN? We’ve got answers.

Which airlines fly this route?

You can find 14 major airlines flying this route most often: Air China, ANA, Asiana, Cathay Dragon, Cathay Pacific, China Eastern, China Southern, EVA Air, Garuda Indonesia, JAL, Jeju Air, Shanghai Airlines, Singapore Airlines, Vietnam Airlines, and potentially more during busy seasons.

How far away is it from Singapore Changi International Airport to Gimpo International Airport?

The distance between the two airports is roughly 2891 miles or 4653 kilometers.

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

The real-world flight time for a nonstop GMP to SIN flight is about 6 hour 11 minutes.

How many flights go between Seoul and Singapore?

It depends on the day of the week and the date, but a typical day might have around 47 available flights from GMP to SIN.


Airport Location Info


Departing Airport

Origination codeGMP
Origination airport nameGimpo International Airport
CountrySouth Korea

Return Airport

Destination codeSIN
Destination airport nameSingapore Changi International Airport


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.