The cheapest times to fly from SIN to GMP are

  • February 5th to July 1st (except the weeks of February 19th, March 26th, April 23rd, and April 30th)
  • August 20th to September 23rd (except the week of September 3rd)
  • November 5th to December 9th (except the weeks of November 12th and November 26th)

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 SIN to GMP is late May to early June. Prices can be as high as $944 for Thursday flights during early August, or as low as $556 for Tuesday flights around late May to early June.


When to Fly to Seoul

Flying from Singapore (SIN) to Seoul (GMP) will usually cost between $602 to $778 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late May to early June with an average ticket price of $661. Due to high demand the most expensive time to fly is early August, with an average price of $773. Planning your trip to low-cost times can easily save you $112 on economy flights and even more on first-class flights. Generally, any price below $723 can be considered a good price for a round-trip SIN to GMP flight.

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

SIN to GMP Flight Prices

Compared to other flights, the SIN to GMP flight is cheaper than the average and costs less than the average flight leaving from Singapore. The average price per mile (for a direct flight) is $0.16, 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. Thursdays are the most expensive days to fly to Seoul, and Saturdays are the most expensive days to return to Singapore. 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 $637. Return trip prices are from the GMP to SIN 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 SIN 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 6 hour 11 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 SIN to GMP while comparing.

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

  • 20 miles (32 km) away from GMP
  • Usually 60.72% less expensive than GMP
  • Nonstop flights available

See SIN to ICN flights


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

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

  • Price for both tickets: $468
  • Average savings: $255 (35.27%)

See SIN to HKG flights

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

  • Price for both tickets: $567
  • Average savings: $156 (21.58%)

See SIN to PUS flights

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

  • Price for both tickets: $569
  • Average savings: $155 (21.37%)

See SIN to KIX flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 15 major airlines flying this route most often: Air China, ANA, Asiana, Cathay Dragon, Cathay Pacific, China Airlines, China Eastern, China Southern, Delta, EVA Air, JAL, Jeju Air, Shanghai Airlines, Singapore Airlines, Vietnam Airlines, and potentially more during busy seasons.

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

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

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

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

How many flights go between Singapore and Seoul?

It depends on the day of the week and the date, but a typical day might have around 49 available flights from SIN to GMP.


Airport Location Info


Departing Airport

Origination code SIN
Origination airport name Singapore Changi International Airport
City Singapore
Country Singapore
Latitude 1.4
Longitude 104

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.