The cheapest times to fly from BLL to SAT are

  • January 8th to February 25th
  • April 9th to May 6th
  • August 13th to October 7th (except the week of August 20th)
  • October 22nd to December 9th (except the week of November 26th)

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 BLL to SAT is early to mid January. Prices can be as high as $1430 for Saturday flights during mid July, or as low as $756 for Tuesday flights around early to mid January.


When to Fly to San Antonio

Flying from Billund (BLL) to San Antonio, TX (SAT) will usually cost between $888 to $1267 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 $920. Due to high demand the most expensive time to fly is mid July, with an average price of $1305. Planning your trip to low-cost times can easily save you $385 on economy flights and even more on first-class flights. Generally, any price below $968 can be considered a good price for a round-trip BLL to SAT flight.

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

BLL to SAT Flight Prices

Compared to other flights, the BLL to SAT flight is priced close to the average and costs more than the average flight leaving from Billund. 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. 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 $139 (9%) 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 $961. Return trip prices are from the SAT to BLL 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 BLL to SAT can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 10 hour 18 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 BLL to SAT while comparing.

Destination alternative #1: Austin – Bergstrom International Airport (AUS) in Austin, TX

  • 66 miles (106 km) away from SAT
  • Usually 5.45% less expensive than SAT
  • 1-layover flights available

See BLL to AUS flights


Flight Hacking BLL to SAT

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 BLL to SAT — but Champion Traveler does!

Hack #1: New York, NY (BLL > JFK > SAT)

  • Price for both tickets: $571
  • Average savings: $397 (41.01%)

See BLL to LGA flights

Hack #2: New York, NY (BLL > LGA > SAT)

  • Price for both tickets: $628
  • Average savings: $340 (35.12%)

See BLL to JFK flights

Hack #3: Newark, NJ (BLL > EWR > SAT)

  • Price for both tickets: $642
  • Average savings: $327 (33.73%)

See BLL to EWR flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 18 major airlines flying this route most often: Air Canada, Air France, Alaska, Alitalia, American, Austrian, British Airways, Brussels Airlines, Condor, Delta, Icelandair, KLM, LOT, Lufthansa, SAS, SWISS, Turkish Airlines, United, and potentially more during busy seasons.

How far away is it from San Antonio International Airport to Billund Airport?

The distance between the two airports is roughly 5180 miles or 8336 kilometers.

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

The real-world flight time for a nonstop BLL to SAT flight is about 10 hour 18 minutes.

How many flights go between Billund and San Antonio, TX?

It depends on the day of the week and the date, but a typical day might have around 17 available flights from BLL to SAT.


Airport Location Info


Departing Airport

Origination codeBLL
Origination airport nameBillund Airport

Return Airport

Destination codeSAT
Destination airport nameSan Antonio International Airport
CitySan Antonio, TX
Countrythe United States


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.