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Uncover the best deals on Las Vegas to Washington flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest LAS - IAD Flights
Useful information for finding best airline tickets from McCarran International to Washington Dulles International on your next trip.
Cheapest Round Trip Flight
$204
Delta Airlines
• 1 stop
• 15h 7m
Sep 17 – Sep 19
The cheapest round trip flight from Las Vegas to Washington (LAS-IAD-LAS) is currently $204
Cheapest One way Flight
$346
Delta Airlines
• 1 stop
• 13h 58m
Aug 23
The cheapest one way flight from Las Vegas to Washington (LAS-IAD) is currently $346
Cheapest Direct Flight
$336
Frontier Airlines
• nonstop
• 7h 14m
Sep 10
The cheapest nonstop flight from Las Vegas to Washington (LAS-IAD) is currently $336
Fastest Flight
7h 13m
The fastest nonstop flight from Las Vegas to Washington (LAS-IAD) takes 7h 13m
Top Airlines Flying from Las Vegas to Washington
Latest Flight Deals from Las Vegas (LAS) to Washington (IAD)
Compare and book low fare round-trip air tickets from Las Vegas to Washington. Ideal for travelers with confirmed return itineraries.
Sep 17 - Sep 19, Economy
Las Vegas → Washington
15h 7m
11:38 PM - 11:45 AM • 1 stop
Las Vegas → Washington
12h 10m
7:35 AM - 12:05 PM • 1 stop
Delta Airlines
Sep 17 - Sep 19, Economy
Las Vegas → Washington
12h 37m
11:24 PM - 10:21 AM • 1 stop
Las Vegas → Washington
14h 13m
3:15 PM - 9:08 PM • 1 stop
Delta Airlines
Sep 10 - Sep 12, Economy
Las Vegas → Washington
12h 14m
12:59 AM - 11:33 AM • 1 stop
Las Vegas → Washington
7h 38m
6:00 AM - 7:58 AM • nonstop
Frontier Airlines
Sep 10 - Sep 12, Economy
Las Vegas → Washington
7h 18m
8:20 AM - 3:58 PM • nonstop
Las Vegas → Washington
17h 6m
10:58 AM - 6:24 PM • 1 stop
United Airlines
Sep 10 - Sep 12, Economy
Las Vegas → Washington
15h 34m
10:25 AM - 10:59 PM • 1 stop
Las Vegas → Washington
8h 28m
6:00 PM - 8:08 PM • nonstop
United Airlines
Explore competitive one-way airfare options for LAS - IAD flights. Best suited for flexible or open-ended travel plans.
Looking for the fastest way to Washington? These direct flight options from LAS to IAD offer both convenience and value—no layovers, just straight to your destination.
Sep 10 - Sep 12, Economy
Las Vegas → Washington
7h 14m
10:46 PM - 6:20 AM • nonstop
Las Vegas → Washington
7h 38m
6:00 AM - 7:58 AM • nonstop
Frontier Airlines
Sep 11 - Sep 13, Economy
Las Vegas → Washington
7h 14m
10:46 PM - 6:20 AM • nonstop
Las Vegas → Washington
7h 38m
6:00 AM - 7:58 AM • nonstop
Frontier Airlines
Sep 10 - Sep 12, Economy
Las Vegas → Washington
7h 13m
11:57 PM - 7:30 AM • nonstop
Las Vegas → Washington
8h 28m
6:00 PM - 8:08 PM • nonstop
United Airlines
Sep 10 - Sep 12, Economy
Las Vegas → Washington
7h 18m
1:23 PM - 9:01 PM • nonstop
Las Vegas → Washington
8h 24m
12:55 PM - 2:59 PM • nonstop
United Airlines
Sep 11 - Sep 13, Economy
Las Vegas → Washington
7h 18m
8:20 AM - 3:58 PM • nonstop
Las Vegas → Washington
8h 24m
9:00 AM - 11:04 AM • nonstop
United Airlines
FAQs on Las Vegas to Washington Flights
What are the airports in Las Vegas?
LAS
What’s the most popular airline flying from LAS to IAD?
The most popular airline flying from Las Vegas to Washington are
Can I fly from LAS to IAD non-stop?
Yes, you can fly LAS to IAD non-stop on
Which airlines fly nonstop between Las Vegas and Washington?
The non-stop flights between Las Vegas and Washington are .
What’s the earliest departure time from LAS to IAD Airport?
The earliest flight leaves LAS at 12:59 am and lands in IAD - Washington Dulles International
What are the airports in Washington?
IAD,BWI,DCA
Can I make changes to my Las Vegas to Washington flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from LAS to IAD?
Read the fare rules of the Las Vegas to Washington air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Las Vegas and Washington?
operate flights between Las Vegas and Washington
How long does a flight from Las Vegas to Washington take?
It takes approximately 5 hour to fly non-stop from LAS to IAD, which is 2065.54 miles by air.
Which airlines provide the cheapest flights from Las Vegas (LAS) to Washington (IAD) ?
In the past couple of days, the cheapest tickets to IAD from LAS were found on AS : USD 952
Do I need a passport to fly between LAS and IAD?
No
What’s the latest departure time from LAS to IAD ?
The last flight leaves LAS at 11:59 pm
Las Vegas (LAS) to Washington (IAD): Airport Information
| Origin Airport | McCarran International , Las Vegas, US |
| Destination Airport | Washington Dulles International , Washington, US |
| Distance | 2066 miles |
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