Frontier AirlinesDepart16:59
Tue, Nov 10BWI → DEN
6h 16m · 1 stop
$157one way, per person
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- Cheapest fare
- $157
- Cheapest month
- November
- Direct flights
- Yes
- Flight time
- 4h 09m
Frontier Airlines · Tue, Nov 10
from $157
United Airlines
2,400 km
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Cheapest month to fly from Washington to Denver
Lowest one-way fare per person in each month. Choose a month to see every date.
Cheapest dates in November 2026
The lowest fares we've seen for each day, cheapest first.
See every date in November 2026 →
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About flights from Washington to Denver
Washington (WAS) and Denver (DEN) are about 2,400 km apart. Direct flights take around 4h 09m, and recent direct fares were with United Airlines. Over the next few months, one-way fares start from $157, and November 2026 is currently the cheapest month to fly.
These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.
Frequently asked questions
How much is a flight from Washington to Denver?
The cheapest one-way fare we've seen recently is $157 with Frontier Airlines, departing Tuesday, November 10, 2026.
What is the cheapest month to fly from Washington to Denver?
November 2026 currently has the lowest fares, from $157 one way.
Are there direct flights from Washington to Denver?
Yes. Recent direct fares were with United Airlines.
How long is the flight from Washington to Denver?
A direct flight takes about 4h 09m. Washington and Denver are around 2,400 km apart.
Which airlines fly from Washington to Denver?
Recent fares on this route were with Frontier Airlines and United Airlines.
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