$184 Cheap United flights Washington (IAD) to Las Vegas (LAS)

View $184 flight on Wed, Mar 4, 2026Opens in a new window

$184 Cheap United flights Washington (IAD) to Las Vegas (LAS)

Prices were available within the past 7 days and start at $184 for one-way flights and $311 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Jan 1 - Tue, Jan 6
IAD
Washington
LAS
Las Vegas
$311 Roundtrip, found 1 day ago
$311
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jan 1 from Washington to Las Vegas, returning Tue, Jan 6, priced at $311 found 1 day ago

Find the cheapest month to fly from Washington (IAD) to Las Vegas (LAS)

May is typically the cheapest month to fly

From $122 - $486 per traveler.

Alternative airports near Las Vegas

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to McCarran Intl. LAS. Cheapest and Closest option available. Average driving time to city center is 6 minutes. Flights from $519
LAS
McCarran Intl.
CheapestClosest
Average driving time to city center6 min
Flights from $519
Flights from Washington (IAD) to Las Vegas (LAS)
Origin airport
Washington Dulles Intl.
Destination airport
Harry Reid Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United
Popular airline
Delta
Distance
3297 km
Average flight time
3 hours 6 mins