AirSource

Flights Denver → Washington — September 20, 2026

One way · Economy · 1 adult · price per person

The cheapest flight observed for Sunday, September 20, 2026 on the Denver–Washington route: Frontier Airlines F9686, from Denver International (DEN) to Washington Reagan National (DCA), departs 6:45 AM, arrives 12:11 PM, direct, 3h 26m, $176 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 10, 2026 and read by AirSource on September 10, 2026, 20:47 UTC: it is not guaranteed and is confirmed on Aviasales at booking time.

Lowest price observed in the available data

Frontier Airlines F9686

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

Direct
Sun, Sep 20
Denver International (DEN)
3h 26m
direct
Sun, Sep 20
Washington Reagan National (DCA)
Airline
Frontier Airlines (F9)
Flight
F9686
Departure
Denver International (DEN) · September 20, 2026 · local time (UTC-6)
Arrival
Washington Reagan National (DCA) · September 20, 2026 · local time (UTC-4)
Stops
Direct (no plane change, as stated by the source; it can include a stop)
Duration
3h 26m
Carry-on bag
not included (personal item only)
Checked bag
not included
Changes
not allowed
Refund
non-refundable
Last observed price
$176 per person, one way
Observed
Price and fare conditions found in an Aviasales search on · read by AirSource on
Last observed price
$176
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 Denver–Washington flights on September 20, 2026 on Aviasales.

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