The cheapest times to fly from PHX to KEF are

  • April 2nd to April 29th (except the week of April 9th)
  • May 14th to October 21st

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 PHX to KEF is early October. Prices can be as high as $3685 for Friday flights during early to mid May, or as low as $703 for Tuesday flights around early October.


When to Fly to Reykjavík

Flying from Phoenix, AZ (PHX) to Keflavik/Reykjavik (KEF) will usually cost between $714 to $964 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early October with an average ticket price of $712. Due to high demand the most expensive time to fly is early to mid May, with an average price of $1632. Planning your trip to low-cost times can easily save you $921 on economy flights and even more on first-class flights. Generally, any price below $809 can be considered a good price for a round-trip PHX to KEF flight.

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

PHX to KEF Flight Prices

Compared to other flights, the PHX to KEF flight is cheaper than the average and costs about as much as the average flight leaving from Phoenix. The average price per mile (for a direct flight) is $0.12, 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. Fridays are the most expensive days to fly to Reykjavík, and Sundays are the most expensive days to return to Phoenix. Selecting flights on the least expensive days could save you up to $98 (11%) 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 $771. Return trip prices are from the KEF to PHX 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 PHX 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 8 hour 27 minutes may not be realistic.


Flight Hacking PHX 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 PHX to KEF — but Champion Traveler does!

Hack #1: Boston, MA (PHX > BOS > KEF)

  • Price for both tickets: $710
  • Average savings: $100 (12.3%)

See PHX to BOS flights

Hack #2: New York, NY (PHX > JFK > KEF)

  • Price for both tickets: $711
  • Average savings: $99 (12.18%)

See PHX to JFK flights

Hack #3: Newark, NJ (PHX > EWR > KEF)

  • Price for both tickets: $739
  • Average savings: $70 (8.65%)

See PHX to EWR flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 13 major airlines flying this route most often: Air Canada, Air France, Alaska, American, Austrian, British Airways, Delta, Finnair, Icelandair, JetBlue, KLM, Lufthansa, United, and potentially more during busy seasons.

How far away is it from Keflavik International Airport to Phoenix Sky Harbor International Airport?

The distance between the two airports is roughly 4149 miles or 6677 kilometers.

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

The real-world flight time for a nonstop PHX to KEF flight is about 8 hour 27 minutes.

How many flights go between Phoenix, AZ and Keflavik/Reykjavik?

It depends on the day of the week and the date, but a typical day might have around 58 available flights from PHX to KEF.


Airport Location Info


Departing Airport

Origination code PHX
Origination airport name Phoenix Sky Harbor International Airport
City Phoenix, AZ
Country the United States
Latitude 33.4
Longitude -112

Return Airport

Destination code KEF
Destination airport name Keflavik International Airport
City Keflavik/Reykjavik
Country Iceland
Latitude 64
Longitude -22.6


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.