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Cheap flights to Denver

Round trips from 20 cities to Denver, United States, from $40. Economy, per person, in USD.

Prices updated

Cheapest right now $40 from Phoenix · Oct 24 – 26 Book this fare
Cheapest month October From $40 (Phoenix)
Departure cities 20 9 are below the usual price
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Flights to Denver by departure city

Cheapest round trip, per person

Cheapest month to fly to Denver

Lowest round trip per departure month, any of our cities
Cheapest round trip to Denver by departure month
MonthCheapest round trip
September 2026$326 from Atlanta
October 2026$40 from Phoenix (cheapest month)
November 2026$92 from Los Angeles
December 2026$97 from Dallas
January 2027$152 from Tampa
February 2027$183 from Austin
March 2027No fares found yet
April 2027$338 from Seattle
May 2027$407 from New York
June 2027$337 from Phoenix

Cheapest dates to Denver

Best date pair from each city
  • Oct 24 – 26 from Phoenix · 2 nights
    $40
    Frontier Airlines Nonstop
    Book
  • Oct 21 – 25 from Dallas · 4 nights
    $79
    Frontier Airlines Nonstop
    Book
  • Nov 10 – 16 from Los Angeles · 6 nights
    $92
    Frontier Airlines Nonstop
    Book
  • Oct 28 – 31 from Austin · 3 nights
    $97
    Frontier Airlines Nonstop
    Book
  • Oct 17 – 20 from Salt Lake City · 3 nights
    $110
    Frontier Airlines Nonstop
    Book
  • Nov 24 – 27 from Las Vegas · 3 nights
    $118
    Frontier Airlines Nonstop
    Book
  • Nov 12 – 16 from Tampa · 4 nights
    $140
    Frontier Airlines Nonstop
    Book
  • Oct 28 – 31 from Chicago · 3 nights
    $141
    Frontier Airlines Nonstop
    Book

Prices change often. The booking site shows the final price before you pay.

Flights to Denver: questions

Which city has the cheapest flights to Denver?

Right now it's Phoenix: round trips from $40 (Oct 24 – 26, nonstop). Next cheapest: Dallas from $79 and Los Angeles from $92. We compare 20 departure cities.

What is the cheapest month to fly to Denver?

October 2026: the cheapest round trip we have found departing that month is $40. The most expensive month in our data is May, where the cheapest round trip is $407. Based on the 9 months ahead we track.

Are there nonstop flights to Denver?

Yes. We have found nonstop round trips from Phoenix, Dallas, Los Angeles and Austin. The cheapest is $40 from Phoenix.

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About these prices

We track round-trip economy fares to Denver (United States) from the cities listed above using Travelpayouts / Aviasales data, and refresh every route about once a day. The cheapest round trip we've found is $40 from Phoenix. Prices are per person and were correct when found; the final price is set by the airline or booking site when you book.

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