Cheap flights from Los Angeles to Washington Dulles
Los Angeles to Washington Dulles (LAX → IAD). We are tracking 12 fares on this route.
Cheapest tracked fare $94 · typical price $282 · you save about $188 (67%)
Cheapest fares we're tracking
Airline
Departs
Stops
Price
Frontier Airlines
2026-09-18
1 stop
$94
Frontier Airlines
2026-09-04
1 stop
$95
Frontier Airlines
2026-10-04
1 stop
$96
Frontier Airlines
2026-09-05
1 stop
$100
—
2026-10-14
1 stop
$119
Frontier Airlines
2026-09-25
1 stop
$123
Frontier Airlines
2026-09-11
1 stop
$126
Frontier Airlines
2026-10-03
1 stop
$128
Frontier Airlines
2026-10-02
1 stop
$130
Frontier Airlines
2026-09-08
1 stop
$138
United Airlines
2026-10-11
Direct
$189
United Airlines
2026-12-26
Direct
$201
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 Los Angeles to Washington Dulles get?
The cheapest fare we have tracked on this route is $94, compared with a typical $282 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 Los Angeles 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.