The cheapest times to fly from BIL to COS are

  • January 1st to March 4th
  • July 2nd to October 7th
  • December 3rd to March 4th (except the weeks of December 10th, December 17th, and December 24th)

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 BIL to COS is mid August. Prices can be as high as $711 for Sunday flights during early to mid June, or as low as $297 for Tuesday flights around mid August.


When to Fly to Colorado Springs

Flying from Billings, MT (BIL) to Colorado Springs, CO (COS) will usually cost between $332 to $514 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid August with an average ticket price of $362. Due to high demand the most expensive time to fly is early to mid June, with an average price of $528. Planning your trip to low-cost times can easily save you $166 on economy flights and even more on first-class flights. Generally, any price below $417 can be considered a good price for a round-trip BIL to COS flight.

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

BIL to COS Flight Prices

Compared to other flights, the BIL to COS flight is much cheaper than the average and costs less than the average flight leaving from Billings. The average price per mile (for a direct flight) is $0.5, which is above average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Sundays 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 $86 (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 $372. Return trip prices are from the COS to BIL 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 BIL to COS can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 1 hour 55 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 BIL to COS while comparing.

Destination alternative #1: Denver International Airport (DEN) in Denver, CO

  • 73 miles (117 km) away from COS
  • Usually 19.66% less expensive than COS
  • Nonstop flights available

See BIL to DEN flights


Flight Questions Answered

Still have questions about flying from BIL to COS? We’ve got answers.

Which airlines fly this route?

You can find 4 major airlines flying this route most often: American, Delta, Frontier, United, and potentially more during busy seasons.

How far away is it from City of Colorado Springs Municipal Airport to Billings Logan International Airport?

The distance between the two airports is roughly 522 miles or 840 kilometers.

How long does it take to fly from BIL to COS?

The real-world flight time for a nonstop BIL to COS flight is about 1 hour 55 minutes.

How many flights go between Billings, MT and Colorado Springs, CO?

It depends on the day of the week and the date, but a typical day might have around 15 available flights from BIL to COS.


Airport Location Info


Departing Airport

Origination codeBIL
Origination airport nameBillings Logan International Airport
CityBillings, MT
Countrythe United States

Return Airport

Destination codeCOS
Destination airport nameCity of Colorado Springs Municipal Airport
CityColorado Springs, CO
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.