The cheapest times to fly from GMP to BUF are

  • January 15th to May 13th (except the week of April 23rd)
  • October 29th to December 9th

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 BUF is early to mid February. Prices can be as high as $2548 for Saturday flights during early January, or as low as $856 for Tuesday flights around early to mid February.


When to Fly to Buffalo

Flying from Seoul (GMP) to Buffalo, NY (BUF) will usually cost between $1236 to $1886 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early to mid February with an average ticket price of $1214. Due to high demand the most expensive time to fly is early January, with an average price of $2062. Planning your trip to low-cost times can easily save you $848 on economy flights and even more on first-class flights. Generally, any price below $1473 can be considered a good price for a round-trip GMP to BUF flight.

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

GMP to BUF Flight Prices

Compared to other flights, the GMP to BUF flight is slightly more expensive than the average and costs slightly more than the average flight leaving from Seoul. The average price per mile (for a direct flight) is $0.14, 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 out or take a return trip. Selecting flights on the least expensive days could save you up to $273 (15%) 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 $1376. Return trip prices are from the BUF 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 BUF can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 12 hour 57 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 GMP to BUF while comparing.

Destination alternative #1: Syracuse Hancock International Airport (SYR) in Syracuse, NY

  • 133 miles (214 km) away from BUF
  • Usually 15.75% less expensive than BUF
  • 2-layover flights available

See GMP to SYR flights

Destination alternative #2: Greater Rochester International Airport (ROC) in Rochester, NY

  • 55 miles (89 km) away from BUF
  • Usually 14.73% less expensive than BUF
  • 2-layover flights available

See GMP to ROC flights


Flight Hacking GMP to BUF

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 BUF — but Champion Traveler does!

Hack #1: Newark, NJ (GMP > EWR > BUF)

  • Price for both tickets: $1038
  • Average savings: $436 (29.57%)

See GMP to LAX flights

Hack #2: Los Angeles, CA (GMP > LAX > BUF)

  • Price for both tickets: $1046
  • Average savings: $427 (28.99%)

See GMP to EWR flights

Hack #3: New York, NY (GMP > LGA > BUF)

  • Price for both tickets: $1049
  • Average savings: $424 (28.78%)

See GMP to LGA flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 4 major airlines flying this route most often: Asiana, Delta, JAL, JetBlue, and potentially more during busy seasons.

How far away is it from Buffalo Niagara International Airport to Gimpo International Airport?

The distance between the two airports is roughly 6647 miles or 10697 kilometers.

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

The real-world flight time for a nonstop GMP to BUF flight is about 12 hour 57 minutes.

How many flights go between Seoul and Buffalo, NY?

It depends on the day of the week and the date, but a typical day might have around 11 available flights from GMP to BUF.


Airport Location Info


Departing Airport

Origination code GMP
Origination airport name Gimpo International Airport
City Seoul
Country South Korea
Latitude 37.6
Longitude 126.8

Return Airport

Destination code BUF
Destination airport name Buffalo Niagara International Airport
City Buffalo, NY
Country the United States
Latitude 42.9
Longitude -78.7


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.