
$157 Cheap United flights from Washington to Las Vegas (IAD to LAS)
Find The Best Day To Fly from Washington to Las Vegas
Amazing United IAD to LAS Flight Deals
The cheapest flights to Harry Reid Intl. found within the past 7 days were $313 round trip and $157 one way. Prices and availability subject to change. Additional terms may apply.
LAS From IAD Economy Coach Packages on Similar Airlines



Frequently asked questions
Discover our best United flight from Washington IAD to Las Vegas LAS
To find the best deals on flights to Washington from Las Vegas with United, just enter your travel dates, filter by United, and hit search. You’ll find 3 flights to choose from and can sort by price, flight duration, and arrival or departure time.
Return flights from Washington IAD to Las Vegas LAS with United
If you’re planning a round trip, booking return flights with United is usually the most cost-effective option. With airfares ranging from $313 to $313, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply.
Book one-way United flights from Washington IAD to Las Vegas LAS
A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way United flight from Washington to Las Vegas costs from $157. Prices and availability subject to change. Additional terms may apply.
The easy way to find cheap flights to Las Vegas LAS from Washington IAD with United
To find a cheap United flight from Washington IAD to Las Vegas LAS, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference.
How to find our best airfare deals on United flights from Washington IAD to Las Vegas LAS
If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as October, or if you book a flight with a stopover.
Find nonstop flights from Washington IAD to Las Vegas LAS with United
If you’re keen to be on Las Vegas soil fast, don’t waste time with a stopover—filter your search results to show direct United flights only. The journey takes around 5 hour(s) 0 min(s) – so you’ll be there before you know it.
Flexible airline tickets for United flights from Washington IAD to Las Vegas LAS
Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.
There are a lot of reasons to book your flights to Las Vegas LAS from Washington IAD with United on Travelocity
At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.
Airport code | Country | Airport name | Number of flights |
---|---|---|---|
ORD | USA | O'Hare Intl. | 227 |
DEN | USA | Denver Intl. | 226 |
IAH | USA | George Bush Intercontinental | 136 |
IAD | USA | Washington Dulles Intl. | 100 |
SFO | USA | San Francisco Intl. | 64 |
LAX | USA | Los Angeles Intl. | 23 |
EWR | USA | Liberty Intl. | 20 |
FRA | DEU | Frankfurt Intl. | 19 |
NRT | JPN | Narita Intl. | 19 |
PEK | CHN | Capital Intl. | 16 |
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