AirSource

Flights Washington → Denver — September 24, 2026

One way · Economy · 1 adult · price per person

The cheapest direct flight observed for Thursday, September 24, 2026 on the Washington–Denver route: Frontier Airlines F9685, from Washington Reagan National (DCA) to Denver International (DEN), departs 7:00 AM, arrives 9:03 AM, direct, 4h 3m, $158 per person. Fare as listed by Aviasales: carry-on bag not included (personal item only), checked bag not included, changes not allowed, non-refundable. Price found in an Aviasales search on September 9, 2026 and read by AirSource on September 10, 2026, 20:47 UTC: it is not guaranteed and is confirmed on Aviasales at booking time.

Cheapest direct flight observed

Frontier Airlines F9685

Direct · Washington Reagan National (DCA) → Denver International (DEN)

Direct
Thu, Sep 24
Washington Reagan National (DCA)
4h 3m
direct
Thu, Sep 24
Denver International (DEN)
Airline
Frontier Airlines (F9)
Flight
F9685
Departure
Washington Reagan National (DCA) · September 24, 2026 · local time (UTC-4)
Arrival
Denver International (DEN) · September 24, 2026 · local time (UTC-6)
Stops
Direct (no plane change, as stated by the source; it can include a stop)
Duration
4h 3m
Carry-on bag
not included (personal item only)
Checked bag
not included
Changes
not allowed
Refund
non-refundable
Last observed price
$158 per person, one way
Observed
Price and fare conditions found in an Aviasales search on · read by AirSource on
Last observed price
$158
per person, one way
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Price not guaranteed: it is confirmed on Aviasales at booking time. How it works

Looking for other times? All Washington–Denver flights on September 24, 2026 on Aviasales.

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