The cheapest times to fly from ACK to COS are

  • January 1st to March 25th (except the weeks of February 12th and March 12th)
  • June 18th to August 5th
  • November 5th to November 18th
  • December 3rd 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 ACK to COS is mid July. Prices can be as high as $1586 for Sunday flights during early June, or as low as $378 for Tuesday flights around mid July.


When to Fly to Colorado Springs

Flying from Nantucket, MA (ACK) to Colorado Springs, CO (COS) will usually cost between $636 to $1322 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid July with an average ticket price of $675. Due to high demand the most expensive time to fly is early June, with an average price of $1320. Planning your trip to low-cost times can easily save you $645 on economy flights and even more on first-class flights. Generally, any price below $961 can be considered a good price for a round-trip ACK to COS flight.

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

ACK to COS Flight Prices

Compared to other flights, the ACK to COS flight is priced close to the average and costs less than the average flight leaving from Nantucket. The average price per mile (for a direct flight) is $0.33, which is in the normal range for a flight.


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 $267 (22%) 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 $840. Return trip prices are from the COS to ACK 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 ACK to COS can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 4 hour 16 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 ACK to COS while comparing.

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

  • 73 miles (117 km) away from COS
  • Usually 22.68% less expensive than COS
  • 1-layover flights available

See ACK to DEN flights


Flight Hacking ACK to COS

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 ACK to COS — but Champion Traveler does!

Hack #1: Boston, MA (ACK > BOS > COS)

  • Price for both tickets: $792
  • Average savings: $169 (17.59%)

See ACK to BOS flights

Hack #2: Atlanta, GA (ACK > ATL > COS)

  • Price for both tickets: $835
  • Average savings: $126 (13.14%)

See ACK to ATL flights

Hack #3: Pittsburgh, PA (ACK > PIT > COS)

  • Price for both tickets: $850
  • Average savings: $111 (11.55%)

See ACK to PIT flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 5 major airlines flying this route most often: American, Cape Air, Delta, SAS, United, and potentially more during busy seasons.

How far away is it from City of Colorado Springs Municipal Airport to Nantucket Memorial Airport?

The distance between the two airports is roughly 1828 miles or 2942 kilometers.

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

The real-world flight time for a nonstop ACK to COS flight is about 4 hour 16 minutes.

How many flights go between Nantucket, MA and Colorado Springs, CO?

It depends on the day of the week and the date, but a typical day might have around 22 available flights from ACK to COS.


Airport Location Info


Departing Airport

Origination code ACK
Origination airport name Nantucket Memorial Airport
City Nantucket, MA
Country the United States
Latitude 41.3
Longitude -70.1

Return Airport

Destination code COS
Destination airport name City of Colorado Springs Municipal Airport
City Colorado Springs, CO
Country the United States
Latitude 38.8
Longitude -104.7


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.