Rare1 stop · 10.5h
WAS to LIMPeru
Lima
$347
usually $630
−45%
Most monthly lows $409–$630. Cheaper than every other month on record (3).
Flights · WAS → LAS
Washington to Las Vegas
Best fare, round trip
$264
−32%
below its usual $390
you keep $126
GreatFound
- Depart
- Mon 26 Oct
- Return
- Thu 29 Oct
- Stay
- 3 nights
- Flight
- Nonstop · 5h
- Airline
Frontier Airlines
Most of this route’s monthly lows fall between $269 and $452. The drop beats 81% of measured fares on the board, over 5 observed months.
Cached fare — the booking search re-prices live before you pay.
United StatesLas VegasAbsurd by design — and the closest airport to Zion, Death Valley and the Grand Canyon’s west rim.Best windowMar–May · Oct–NovAirportsHarry Reid (LAS)Every route into Las VegasFare seasonality
When this route gets cheap.
Fares bottom out in October around $264 and peak in November near $499, 89% dearer, across the 5 months we track. The cheapest itinerary we are tracking flies Frontier Airlines nonstop and takes about 5 hours outbound, on a 3-night trip. At $264 for 3,349 km each way, that works out to about $39 per 1,000 km flown. That is below the $43 per 1,000 km typical of medium-haul fares here. Across the 5 departure cities we track at a similar distance from Las Vegas, this fare ranks 3rd — 19% above the $221 from New York. The best time to be in Las Vegas: Mar–May · Oct–Nov.
The 6 days we hold a cached fare for
Press a date to compare its fares
The median cached fare across this calendar is 18% higher than when tracking began on 8 Aug — $289 then versus $341 now, across 19 recorded snapshots. This is a calendar-level trend, so an individual deal above can be lower. The lowest single day we have seen here is $110, on 22 Aug.
These are the only days we have a cached price for on this route so far — not the only days it flies. The search above covers any date.
Cached fares · checked 15 Oct 2026
Cheapest in Oct, around $264
32% below the $390 typical fare
$264Oct, the cheapest month. Compare October fares.$499Nov, above the usual price. Compare November fares.$269Dec, below the usual price. Compare December fares.$341Jan ’27, below the usual price. Compare January fares.$388Mar, around the usual price. Compare March fares.$452May, above the usual price. Compare May fares.
CheapestBelow usualUsualAbove usualPress a month to compare its fares
Cheapest round-trip fare found each month, Washington to Las Vegas, from cached prices.
Route facts
- Airports
- Dulles (IAD) · Reagan National (DCA) · Baltimore (BWI) ↔ Harry Reid (LAS)
- Flight time
- ≈5 hours outbound
- Distance
- ≈3,349 km each way
- Typical price
- $390 round-trip (seasonal median)
- Airlines on the board
- Frontier Airlines
- Itineraries
- Nonstop available
- Best months to visit
- Mar–May · Oct–Nov
Good to know
WAS → LAS, answered.
Is $264 a good price for Washington to Las Vegas?
Yes — the seasonal median for this route is around $390 round-trip. At $264 you're 32% below that, which we rate great for this route.
What is the cheapest month to fly from Washington to Las Vegas?
Across 5 months of cached-fare history, Oct comes out cheapest on this route. The best months to actually be in Las Vegas are Mar–May · Oct–Nov — when those overlap, that's your window.
How far in advance should I book WAS → Las Vegas?
We do not publish a number for this, because we cannot measure it yet. Answering it honestly means watching the same departure date on this route over many weeks as it approaches, and that archive is still filling up — so any "book N days ahead" figure here would be borrowed from somewhere else rather than measured. What we can measure is which month is cheap: across 5 months of cached fares, Oct comes out lowest on this route. Our guide Why flight prices change covers what does move a fare.
Are there nonstop flights from Washington to Las Vegas?
Yes — the current board includes nonstop fares (Frontier Airlines). The outbound leg runs around 5 hours.
Are these prices guaranteed?
No — these are cached fares found on real searches (this one on 17 October). Airlines reprice constantly, so the booking search re-checks the live price before you pay. Fresher finds are far more likely to still be available.
Next step
Sleeping in Las Vegas?
Lock the flight first — then compare stays for 26–29 Oct · 3 nights.
Browse hotelsMissed it?
Cached fares expire. This route has a feed of its own — follow it and the next WAS → LAS drop reaches you as soon as we find it.
Follow this route’s feedKeep browsing
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