
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $270 (Cheapflightsfares) |
One-way from | $134 (Frontier) |
Popular in | October |
Cheapest in | August |
Average price | $377 |
Good round-trip deal | $336 or less |
Good one-way deal | $182 or less |
Fly from
Fly to
Route
Depart
Return
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Sat 9/26
12:18 pm-5:40 pm
1 stop8h 22m
Las Vegas Harry Reid Intl
Wed 9/30
11:40 am-11:14 pm
1 stop8h 34m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Thu 10/22
7:24 pm-10:26 am
1 stop18h 02m
Las Vegas Harry Reid Intl
Tue 10/27
9:38 am-11:59 pm
1 stop11h 21m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Wed 10/7
7:00 am-10:34 pm
2 stops18h 34m
Las Vegas Harry Reid Intl
Sat 10/10
7:00 am-5:53 pm
1 stop7h 53m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Wed 10/21
8:30 am-1:14 pm
1 stop7h 44m
Las Vegas Harry Reid Intl
Mon 11/2
11:00 pm-6:22 am
Nonstop4h 22m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Tue 11/3
5:14 pm-1:48 pm
2 stops23h 34m
Las Vegas Harry Reid Intl
Sat 11/7
6:00 am-5:40 pm
1 stop8h 40m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Sat 9/5
5:47 pm-2:11 pm
2 stops23h 24m
Las Vegas Harry Reid Intl
Tue 9/8
5:28 pm-6:14 pm
1 stop21h 46m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Sat 7/4
6:03 am-5:12 pm
2 stops14h 09m
Las Vegas Harry Reid Intl
Wed 7/8
6:19 pm-6:45 pm
1 stop21h 26m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Tue 9/22
9:00 am-11:04 am
Nonstop5h 04m
Las Vegas Harry Reid Intl
Sat 9/26
1:38 pm-11:19 pm
1 stop6h 41m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Mon 8/3
6:03 am-2:16 pm
1 stop11h 13m
Las Vegas Harry Reid Intl
Thu 8/13
7:59 am-6:45 pm
1 stop7h 46m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Fri 7/31
7:53 pm-10:31 am
1 stop17h 38m
Las Vegas Harry Reid Intl
Wed 8/5
6:50 am-6:45 pm
1 stop8h 55m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Las Vegas may vary depending on when you book. For the best chance of a lower fare, look to book 17 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Las Vegas (average of $259). Flying from Washington, D.C. Dulles Intl Airport to Las Vegas in October is currently the most expensive (average of $681). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
One of the essential ways to save on airfare from Washington, D.C. Dulles Intl Airport to Las Vegas is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 38% on airfare.
Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Las Vegas flight should consider departing on Monday mornings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
About 14% of weekly flights between Washington, D.C. and Las Vegas have experienced delays in the past year, with the average delay time being 170 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.
Wednesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Over the last year, United Airlines have had the lowest number of delays on this route, with just 12% of flights being delayed.
San Diego (SAN) – chosen by Cheapflights users on 40% of 1-stop itineraries from Washington, D.C. Dulles Intl Airport to Las Vegas on Cheapflights.
Atlanta (ATL) is the most affordable 1-stop option, with an average round-trip price of $184.
Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 7h 42m.
Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 1h 45m.
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Overall
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Boarding
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La Tracimeldamarcos,Jun 2026
LAX - SLC
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La Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
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La Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
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Food
Overall
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Reviews
La Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
Crew
Food
Overall
Comfort
Boarding
Reviews
La Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
Crew
Food
Overall
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Boarding
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La Tracimeldamarcos,Jun 2026
LAX - SLC
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$122 | Average$255 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$198 | Average$473 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$231 | Average$385 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$253 | Average$544 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$256 | Average$452 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$406 | Average$581 | FlexibilityNo cancel fee | On-time71% |