The cheapest times to fly from KEF to BLL are

  • January 8th to March 25th (except the week of January 29th)
  • April 23rd to June 10th
  • September 3rd to September 16th
  • 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 KEF to BLL is early to mid January. Prices can be as high as $2049 for Wednesday flights during late December, or as low as $197 for Tuesday flights around early to mid January.


When to Fly to Billund

Flying from Keflavik/Reykjavik (KEF) to Billund (BLL) will usually cost between $230 to $492 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early to mid January with an average ticket price of $255. Due to high demand the most expensive time to fly is late December, with an average price of $620. Planning your trip to low-cost times can easily save you $365 on economy flights and even more on first-class flights. Generally, any price below $313 can be considered a good price for a round-trip KEF to BLL flight.

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

KEF to BLL Flight Prices

Compared to other flights, the KEF to BLL flight is much cheaper than the average and costs much less than the average flight leaving from Reykjavík. 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. Wednesdays are the most expensive days to fly to Billund, and Saturdays are the most expensive days to return to Reykjavík. Selecting flights on the least expensive days could save you up to $114 (29%) 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 $294. Return trip prices are from the BLL to KEF 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 KEF to BLL can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 3 hour 11 minutes may 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 a nonstop flight from KEF to BLL while comparing.

Destination alternative #1: Kastrup Airport (CPH) in Copenhagen

  • 137 miles (220 km) away from BLL
  • Usually 27.32% less expensive than BLL
  • Nonstop flights available

See KEF to CPH flights

Destination alternative #2: Hamburg Airport (HAM) in Hamburg

  • 149 miles (240 km) away from BLL
  • Usually 20.93% less expensive than BLL
  • Nonstop flights available

See KEF to HAM flights


Flight Hacking KEF to BLL

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 KEF to BLL — but Champion Traveler does!

Hack #1: Oslo (KEF > OSL > BLL)

  • Price for both tickets: $305
  • Average savings: $8 (2.56%)

See KEF to LHR flights

Hack #2: London (KEF > LHR > BLL)

  • Price for both tickets: $308
  • Average savings: $6 (1.76%)

See KEF to OSL flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 17 major airlines flying this route most often: Air Baltic, Atlantic Airways, Austrian, British Airways, CSA, Eurowings, Finnair, Icelandair, JAL, KLM, LOT, Lufthansa, Norwegian, Norwegian Air International, SAS, Singapore Airlines, Wizz Air, and potentially more during busy seasons.

How far away is it from Billund Airport to Keflavik International Airport?

The distance between the two airports is roughly 1222 miles or 1967 kilometers.

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

The real-world flight time for a nonstop KEF to BLL flight is about 3 hour 11 minutes.

How many flights go between Keflavik/Reykjavik and Billund?

It depends on the day of the week and the date, but a typical day might have around 34 available flights from KEF to BLL.


Airport Location Info


Departing Airport

Origination codeKEF
Origination airport nameKeflavik International Airport

Return Airport

Destination codeBLL
Destination airport nameBillund 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.