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Cheap flights from Denver

We are watching 131 routes out of Denver. The cheapest fare we can vouch for today is €24, and for each one we say whether today is a good moment or you should wait.

See this fare · Dallas-Fort Worth €24

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Where to fly from Denver

Denver → Dallas-Fort Worth

Frontier Airlines Based on 211 observations ✈ Direct

Denver → Salt Lake City

Frontier Airlines Based on 196 observations ✈ Direct

Denver → San Diego

Frontier Airlines Based on 105 observations ✈ Direct

Denver → San Francisco

Frontier Airlines Based on 213 observations ✈ Direct

Denver → Phoenix

Frontier Airlines Based on 214 observations ✈ Direct

Denver → Las Vegas

Frontier Airlines Based on 116 observations 1 stop

Denver → Chicago

Frontier Airlines Based on 270 observations ✈ Direct

Denver → Oklahoma City

Frontier Airlines Based on 36 observations ✈ Direct

Denver → Ontario

Frontier Airlines Based on 152 observations ✈ Direct

Denver → Charlotte

United Airlines Based on 30 observations ✈ Direct

Denver → Atlanta

Frontier Airlines Based on 64 observations 1 stop

Denver → Austin

Frontier Airlines Based on 82 observations ✈ Direct

Denver → Fort Lauderdale

Frontier Airlines Based on 147 observations 1 stop

Denver → San Antonio

Frontier Airlines Based on 68 observations ✈ Direct

Denver → Los Angeles

Frontier Airlines Based on 389 observations 1 stop

Denver → Houston

Frontier Airlines Based on 139 observations ✈ Direct

Denver → Minneapolis

Frontier Airlines Based on 100 observations ✈ Direct

Denver → Tampa

Frontier Airlines Based on 75 observations ✈ Direct

Denver → Albuquerque

Contour Airlines Based on 39 observations 1 stop

Denver → San Jose

Southwest Airlines Based on 95 observations ✈ Direct

Denver → Cleveland

Frontier Airlines Based on 64 observations 1 stop

Denver → San Juan

Frontier Airlines Based on 76 observations 1 stop

Denver → Raleigh/Durham

Frontier Airlines Based on 53 observations ✈ Direct

Denver → McCook

Denver Air Connection (DAC) Based on 14 observations ✈ Direct

Denver → Vancouver

Frontier Airlines Based on 30 observations 1 stop

Denver → Seattle

Frontier Airlines Based on 159 observations ✈ Direct

Denver → Oakland

Southwest Airlines Based on 57 observations 1 stop

Denver → New York

Frontier Airlines Based on 340 observations 1 stop

Denver → Miami

Frontier Airlines Based on 175 observations 1 stop

Denver → Portland

Frontier Airlines Based on 91 observations ✈ Direct

Denver → Boston

Frontier Airlines Based on 155 observations 1 stop

Denver → Knoxville/Maryville

Allegiant Air Based on 18 observations ✈ Direct

Denver → New Orleans

Frontier Airlines Based on 42 observations 1 stop

Denver → Cancún

Frontier Airlines Based on 76 observations 1 stop

Denver → Baltimore

Frontier Airlines Based on 135 observations 1 stop

Denver → Puerto Vallarta

Southwest Airlines Based on 8 observations ✈ Direct

Denver → Washington

Frontier Airlines Based on 71 observations 1 stop

Denver → Boise

Frontier Airlines Based on 42 observations 1 stop

Denver → Indianapolis

Frontier Airlines Based on 11 observations 1 stop

Denver → Mexico City

Volaris Based on 51 observations ✈ Direct

Denver → Querétaro

Volaris Based on 16 observations ✈ Direct

Denver → Nashville

Frontier Airlines Based on 100 observations 1 stop

Denver → St Louis

Frontier Airlines Based on 40 observations 1 stop

Denver → Guadalajara

Volaris Based on 17 observations ✈ Direct

Denver → Alamosa

Denver Air Connection (DAC) Based on 14 observations ✈ Direct

Denver → Manchester

Southwest Airlines Based on 10 observations 1 stop

Denver → Everett

Alaska Airlines Based on 44 observations 1 stop

Denver → El Paso

Frontier Airlines Based on 16 observations 1 stop

Denver → Newburgh

Frontier Airlines Based on 77 observations 1 stop

Denver → Buffalo

Frontier Airlines Based on 22 observations 1 stop

Denver → Reno

Frontier Airlines Based on 22 observations 1 stop

Denver → Rapid City

Frontier Airlines Based on 22 observations 1 stop

Denver → Cortez

KG Based on 38 observations ✈ Direct

Denver → Omaha

Frontier Airlines Based on 14 observations ✈ Direct

Denver → Des Moines

UA Based on 27 observations ✈ Direct

Denver → Lincoln

Frontier Airlines Based on 43 observations 2 stops

Denver → Cincinnati / Covington

Frontier Airlines Based on 28 observations 1 stop

Denver → Philadelphia

Frontier Airlines Based on 28 observations 1 stop

Denver → Long Beach

Alaska Airlines Based on 54 observations 1 stop

Denver → Milwaukee

Southwest Airlines Based on 18 observations 1 stop

Booking tips from our fare data

How far in advance should you book a flight?: Book 1–1.5 months before departure. Tracking the same flights at every lead time (97,668 flights on 19,841 routes, 2026-06-14 to 2026-11-05), that window had the smallest average premium over each flight's lowest fare: +16.7%, against +49.3% in the last 3 days.
What is the cheapest day of the week to fly?: Wednesday. Comparing each fare with the median of its own route, Wednesday departures were +3.5% and Tuesday +4.3%, while Friday was the dearest at +10.5%. Weekend departures cost more than midweek ones.
What is the cheapest month to fly?: November 2026. Comparing each route's fares month by month (booked 8–60 days ahead), November 2026 departures were -1.1% against the route's own median, while January 2027 was the dearest at +22.7%. Covers September 2026, October 2026, November 2026, December 2026, January 2027; fares observed 2026-06-14 to 2026-11-05.

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