Expect long security queues at IAD, especially in the afternoon. Plan extra time to navigate the terminals efficiently.
Most accurate provider | FlightHub 3 stars |
---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $183 (Kiwi.com) |
One-way from | $96 (Cheapflightsfares) |
Popular in | December |
Cheapest in | August |
Average price | $487 |
Good round-trip deal | $303 or less |
Good one-way deal | $180 or less |
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Wed 11/12
6:30 am-11:28 am
1 stop7h 58m
Las Vegas Harry Reid Intl
Wed 11/19
11:50 pm-7:09 am
Nonstop4h 19m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Wed 11/12
5:40 pm-10:26 pm
1 stop7h 46m
Las Vegas Harry Reid Intl
Sat 11/15
12:31 pm-6:23 am
1 stop14h 52m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Wed 11/12
7:01 am-11:10 am
1 stop7h 09m
Las Vegas Harry Reid Intl
Mon 11/17
11:05 am-12:54 am
1 stop10h 49m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Thu 11/27
12:47 pm-3:10 pm
Nonstop5h 23m
Las Vegas Harry Reid Intl
Thu 12/4
10:47 am-8:34 pm
1 stop6h 47m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Tue 11/18
7:01 am-11:10 am
1 stop7h 09m
Las Vegas Harry Reid Intl
Fri 11/21
11:05 am-12:54 am
1 stop10h 49m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Mon 11/10
5:40 pm-11:33 pm
1 stop8h 53m
Las Vegas Harry Reid Intl
Mon 11/17
7:47 pm-5:13 pm
1 stop18h 26m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Tue 10/28
12:09 pm-10:20 pm
1 stop13h 11m
Las Vegas Harry Reid Intl
Mon 11/3
11:40 pm-11:57 am
1 stop9h 17m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Wed 11/12
7:43 am-9:31 pm
2 stops16h 48m
Las Vegas Harry Reid Intl
Thu 11/13
6:01 am-6:23 am
2 stops21h 22m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Fri 1/9
7:00 am-2:38 pm
1 stop10h 38m
Las Vegas Harry Reid Intl
Mon 1/12
11:25 pm-11:42 am
1 stop9h 17m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Tue 11/4
6:18 am-2:39 pm
2 stops11h 21m
Las Vegas Harry Reid Intl
Thu 11/6
10:52 am-12:40 am
1 stop10h 48m
Provider | Price Accuracy | Trust Score* |
---|---|---|
Price Accuracy2 stars | Trust Score*3 stars | |
Price Accuracy3 stars | Trust Score*3 stars | |
Price Accuracy3 stars | Trust Score*3 stars | |
Price Accuracy2 stars | Trust Score*2 stars | |
Price Accuracy1 star | Trust Score*3 stars | |
Price Accuracy2 stars | Trust Score*1 star | |
Price Accuracy3 stars | Trust Score*3 stars | |
Price Accuracy3 stars | 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 20 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Currently, June is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Las Vegas (average of $119). Flying from Washington, D.C. Dulles Intl Airport to Las Vegas in March is currently the most expensive (average of $309). 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 in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 24% on airfare.
Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Las Vegas flight should consider departing on Saturday mornings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
About 20% of weekly flights between Washington, D.C. and Las Vegas have experienced delays in the past year, with the average delay time being 174 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.
Saturday 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, American Airlines have had the lowest number of delays on this route, with no flights being classified as delayed.
Boarding
Overall
Food
Comfort
Entertainment
Crew
Reviews
Mike,Aug 2025
OKC - AUS
Boarding
Overall
Food
Comfort
Entertainment
Crew
Reviews
Mike,Aug 2025
OKC - AUS
Boarding
Overall
Food
Comfort
Entertainment
Crew
Reviews
Mike,Aug 2025
OKC - AUS
Boarding
Overall
Food
Comfort
Entertainment
Crew
Reviews
Mike,Aug 2025
OKC - AUS
Boarding
Overall
Food
Comfort
Entertainment
Crew
Reviews
Mike,Aug 2025
OKC - AUS
Boarding
Overall
Food
Comfort
Entertainment
Crew
Reviews
Mike,Aug 2025
OKC - AUS
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$111 | Average$307 | FlexibilityNo cancel fee | On-time65% | |
Cheapest$120 | Average$205 | FlexibilityNo cancel fee | On-time62% | |
Cheapest$231 | Average$305 | FlexibilityNo cancel fee | On-time75% | |
Cheapest$245 | Average$456 | FlexibilityNo cancel fee | On-time69% | |
Cheapest$256 | Average$371 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$256 | Average$483 | FlexibilityNo cancel fee | On-time63% | |
Cheapest$368 | Average$510 | FlexibilityNo cancel fee | On-time71% |