Denver to Washington Dulles (DEN → IAD). We are tracking 15 fares on this route.
Cheapest tracked fare $57 · typical price $107 · you save about $50 (47%)
Cheapest fares we're tracking
Airline
Departs
Stops
Price
—
2026-12-09
1 stop
$57
—
2026-12-12
1 stop
$61
—
2026-11-16
1 stop
$63
—
2027-01-25
1 stop
$64
—
2026-10-28
1 stop
$68
Frontier
2026-12-03
1 stop
$70
—
2027-02-01
1 stop
$71
—
2027-02-05
1 stop
$72
—
2026-11-17
1 stop
$77
—
2027-02-02
1 stop
$87
—
2027-03-02
1 stop
$87
Frontier Airlines
2026-12-01
1 stop
$89
—
2026-11-10
1 stop
$94
Frontier
2026-11-11
1 stop
$107
Frontier Airlines
2026-12-17
2 stops
$133
Could you save more?
The airport you were going to fly from is often not the cheapest one. Compare every airport in a region against each other, or check whether a multi-day stopover beats the direct fare.
How cheap can flights from Denver to Washington Dulles get?
The cheapest fare we have tracked on this route is $57, compared with a typical $107 for a trip of this distance.
Is it cheaper to fly to Washington Dulles from a different airport?
Often, yes. Fares out of secondary airports are frequently cheaper than the obvious hub, but they are the ones most likely to be missing from a normal search. Our reverse search compares every airport in a region against each other so the cheaper departure point is not hidden.
Could a stopover make Denver to Washington Dulles cheaper?
Sometimes. On thin long-haul routes a two-leg trip with a multi-day stopover can beat the direct fare, and occasionally a direct fare is not sold at all. Our detour search prices those routings against the direct flight.