The cheapest times to fly from SLC to BIO are

  • January 1st to April 1st
  • September 3rd to September 16th
  • October 1st to December 16th

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 SLC to BIO is late January. Prices can be as high as $1835 for Saturday flights during early August, or as low as $909 for Wednesday flights around late January.


When to Fly to Bilbao

Flying from Salt Lake City, UT (SLC) to Bilbao (BIO) will usually cost between $978 to $1715 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late January with an average ticket price of $984. Due to high demand the most expensive time to fly is early August, with an average price of $1691. Planning your trip to low-cost times can easily save you $707 on economy flights and even more on first-class flights. Generally, any price below $1468 can be considered a good price for a round-trip SLC to BIO flight.

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

SLC to BIO Flight Prices

Compared to other flights, the SLC to BIO flight is slightly more expensive than the average and costs slightly more than the average flight leaving from Salt Lake City. The average price per mile (for a direct flight) is $0.18, which is below average.


Flight Prices by Day of the Week

Wednesday is usually the cheapest day to fly to BIO, and Thursday the cheapest day to fly back into SLC. 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 $116 (8%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Wednesday and returning a week later will cost an average of $1345. Return trip prices are from the BIO to SLC 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 SLC to BIO can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 10 hour 14 minutes may not be realistic.


Flight Hacking SLC to BIO

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 SLC to BIO — but Champion Traveler does!

Hack #1: New York, NY (SLC > JFK > BIO)

  • Price for both tickets: $819
  • Average savings: $649 (44.21%)

See SLC to JFK flights

Hack #2: Boston, MA (SLC > BOS > BIO)

  • Price for both tickets: $836
  • Average savings: $632 (43.05%)

See SLC to BOS flights

Hack #3: New York, NY (SLC > LGA > BIO)

  • Price for both tickets: $842
  • Average savings: $626 (42.64%)

See SLC to LGA flights


Flight Questions Answered

Still have questions about flying from SLC to BIO? We’ve got answers.

Which airlines fly this route?

You can find 14 major airlines flying this route most often: Aer Lingus, Aeromexico, Air Europa, Air France, American, British Airways, Delta, Finnair, Iberia, KLM, Lufthansa, SWISS, Turkish Airlines, United, and potentially more during busy seasons.

How far away is it from Bilbao Airport to Salt Lake City International Airport?

The distance between the two airports is roughly 5143 miles or 8277 kilometers.

How long does it take to fly from SLC to BIO?

The real-world flight time for a nonstop SLC to BIO flight is about 10 hour 14 minutes.

How many flights go between Salt Lake City, UT and Bilbao?

It depends on the day of the week and the date, but a typical day might have around 14 available flights from SLC to BIO.


Airport Location Info


Departing Airport

Origination code SLC
Origination airport name Salt Lake City International Airport
City Salt Lake City, UT
Country the United States
Latitude 40.8
Longitude -112

Return Airport

Destination code BIO
Destination airport name Bilbao Airport
City Bilbao
Country Spain
Latitude 43.3
Longitude -2.9


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.