The cheapest times to fly from TYS to KEF are

  • April 2nd to October 14th (except the weeks of May 21st and June 25th)

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 KEF is late September. Prices can be as high as $6034 for Wednesday flights during mid March, or as low as $429 for Tuesday flights around late September.


When to Fly to Reykjavík

Flying from Knoxville, TN (TYS) to Keflavik/Reykjavik (KEF) will usually cost between $586 to $1286 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late September with an average ticket price of $574. Due to high demand the most expensive time to fly is mid March, with an average price of $1806. Planning your trip to low-cost times can easily save you $1232 on economy flights and even more on first-class flights. Generally, any price below $710 can be considered a good price for a round-trip TYS to KEF flight.

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

TYS to KEF Flight Prices

Compared to other flights, the TYS to KEF flight is cheaper than the average and costs less than the average flight leaving from Knoxville. 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 fly to KEF, and Monday the cheapest day to fly back into TYS. Wednesdays are the most expensive days to fly to Reykjavík, and Saturdays are the most expensive days to return to Knoxville. Selecting flights on the least expensive days could save you up to $225 (19%) 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 $727. Return trip prices are from the KEF 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 KEF 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 41 minutes may not be realistic.


Flight Hacking TYS to KEF

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 KEF — but Champion Traveler does!

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

  • Price for both tickets: $674
  • Average savings: $37 (5.14%)

See TYS to JFK flights

Hack #2: Newark, NJ (TYS > EWR > KEF)

  • Price for both tickets: $684
  • Average savings: $27 (3.73%)

See TYS to EWR flights

Hack #3: Boston, MA (TYS > BOS > KEF)

  • Price for both tickets: $687
  • Average savings: $23 (3.24%)

See TYS to BOS flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 11 major airlines flying this route most often: Air Canada, Air France, American, Austrian, British Airways, Delta, Finnair, Icelandair, KLM, Lufthansa, United, and potentially more during busy seasons.

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

The distance between the two airports is roughly 3169 miles or 5100 kilometers.

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

The real-world flight time for a nonstop TYS to KEF flight is about 6 hour 41 minutes.

How many flights go between Knoxville, TN and Keflavik/Reykjavik?

It depends on the day of the week and the date, but a typical day might have around 42 available flights from TYS to KEF.


Airport Location Info


Departing Airport

Origination codeTYS
Origination airport nameMcGhee Tyson Airport
CityKnoxville, TN
Countrythe United States

Return Airport

Destination codeKEF
Destination airport nameKeflavik 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.