$239 Cheap United flights Washington (IAD) to Las Vegas (LAS)

View $239 flight on Tue, Sep 29, 2026Opens in a new window

$239 Cheap United flights Washington (IAD) to Las Vegas (LAS)

Prices were available within the past 7 days and start at $239 for one-way flights and $292 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Aug 18 - Wed, Sep 2
IAD
Washington
LAS
Las Vegas
$292 Roundtrip, found 6 days ago
$292
Roundtrip
found 6 days ago
Select United flight, departing Tue, Aug 18 from Washington to Las Vegas, returning Wed, Sep 2, priced at $292 found 6 days ago
United
Tue, Aug 18 - Wed, Sep 2
IAD
Washington
LAS
Las Vegas
$297 Roundtrip, found 6 days ago
$297
Roundtrip
found 6 days ago
Select United flight, departing Tue, Aug 18 from Washington to Las Vegas, returning Wed, Sep 2, priced at $297 found 6 days ago
United
Tue, Aug 18 - Wed, Sep 2
IAD
Washington
LAS
Las Vegas
$302 Roundtrip, found 6 days ago
$302
Roundtrip
found 6 days ago
Select United flight, departing Tue, Aug 18 from Washington to Las Vegas, returning Wed, Sep 2, priced at $302 found 6 days ago
United
Tue, Aug 18 - Wed, Sep 2
IAD
Washington
LAS
Las Vegas
$319 Roundtrip, found 6 days ago
$319
Roundtrip
found 6 days ago
Select United flight, departing Tue, Aug 18 from Washington to Las Vegas, returning Wed, Sep 2, priced at $319 found 6 days ago
United
Tue, Aug 18 - Wed, Sep 2
IAD
Washington
LAS
Las Vegas
$347 Roundtrip, found 6 days ago
$347
Roundtrip
found 6 days ago
Select United flight, departing Tue, Aug 18 from Washington to Las Vegas, returning Wed, Sep 2, priced at $347 found 6 days ago
United
Tue, Sep 29 - Tue, Oct 6
IAD
Washington
LAS
Las Vegas
$367 Roundtrip, found 5 days ago
$367
Roundtrip
found 5 days ago
Select United flight, departing Tue, Sep 29 from Washington to Las Vegas, returning Tue, Oct 6, priced at $367 found 5 days ago
United
Tue, Sep 29 - Tue, Oct 6
IAD
Washington
LAS
Las Vegas
$373 Roundtrip, found 5 days ago
$373
Roundtrip
found 5 days ago
Select United flight, departing Tue, Sep 29 from Washington to Las Vegas, returning Tue, Oct 6, priced at $373 found 5 days ago

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 $395
LAS
McCarran Intl.
CheapestClosest
Average driving time to city center6 min
Flights from $395

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

June is typically the cheapest month to fly

From $214 - $345 per traveler.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Harry Reid Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, United
Popular airline
American Airlines
Distance
3297 km
Average flight time
2 hours 42 mins

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