The cheapest times to fly from TYS to GMP are

  • January 1st to March 11th (except the weeks of January 15th, January 22nd, and January 29th)
  • March 26th to April 22nd
  • August 13th to December 2nd (except the week of September 10th)

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 TYS to GMP is late August to early September. Prices can be as high as $2905 for Thursday flights during early August, or as low as $1362 for Tuesday flights around late August to early September.


When to Fly to Seoul

Flying from Knoxville, TN (TYS) to Seoul (GMP) will usually cost between $1374 to $2211 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late August to early September with an average ticket price of $1405. Due to high demand the most expensive time to fly is early August, with an average price of $2505. Planning your trip to low-cost times can easily save you $1100 on economy flights and even more on first-class flights. Generally, any price below $1494 can be considered a good price for a round-trip TYS to GMP flight.

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

TYS to GMP Flight Prices

Compared to other flights, the TYS to GMP flight is slightly more expensive than the average and costs more than the average flight leaving from Knoxville. 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 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 Knoxville. Selecting flights on the least expensive days could save you up to $198 (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 $1500. Return trip prices are from the GMP to TYS 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 TYS to GMP can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 13 hour 35 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 TYS to GMP while comparing.

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

  • 20 miles (32 km) away from GMP
  • Usually 11.28% less expensive than GMP
  • 1-layover flights available

See TYS to ICN flights


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

Hack #1: New York, NY (TYS > JFK > GMP)

  • Price for both tickets: $1265
  • Average savings: $229 (15.33%)

See TYS to JFK flights

Hack #2: New York, NY (TYS > LGA > GMP)

  • Price for both tickets: $1265
  • Average savings: $229 (15.3%)

See TYS to LGA flights

Hack #3: Philadelphia, PA (TYS > PHL > GMP)

  • Price for both tickets: $1271
  • Average savings: $223 (14.9%)

See TYS to PHL flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 9 major airlines flying this route most often: Air Canada, American, ANA, Asiana, China Southern, Delta, JAL, Korean Air, United, and potentially more during busy seasons.

How far away is it from Gimpo International Airport to McGhee Tyson Airport?

The distance between the two airports is roughly 6997 miles or 11261 kilometers.

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

The real-world flight time for a nonstop TYS to GMP flight is about 13 hour 35 minutes.

How many flights go between Knoxville, TN and Seoul?

It depends on the day of the week and the date, but a typical day might have around 41 available flights from TYS to GMP.


Airport Location Info


Departing Airport

Origination code TYS
Origination airport name McGhee Tyson Airport
City Knoxville, TN
Country the United States
Latitude 35.8
Longitude -84

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.