
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $214 (Kiwi.com) |
One-way from | $79 (Kiwi.com) |
Popular in | March |
Cheapest in | August |
Average price | $453 |
Good round-trip deal | $469 or less |
Good one-way deal | $218 or less |
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.Las Vegas
DCA - LAS
DCALAS
Washington, D.C. Reagan-National
Tue 4/28
8:59 am-10:53 pm
2 stops16h 54m
Las Vegas Harry Reid Intl
Tue 5/5
10:19 am-9:00 pm
1 stop7h 41m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Sat 4/4
7:50 pm-10:13 pm
Nonstop5h 23m
Las Vegas Harry Reid Intl
Thu 4/9
11:45 pm-7:21 am
Nonstop4h 36m
Washington, D.C.Las Vegas
DCA - LAS
DCALAS
Washington, D.C. Reagan-National
Tue 8/4
6:30 am-1:34 pm
1 stop10h 04m
Las Vegas Harry Reid Intl
Tue 8/4
11:59 pm-2:55 pm
1 stop11h 56m
BaltimoreLas Vegas
BWI - LAS
BWILAS
Baltimore/Washington
Tue 3/24
7:10 pm-9:45 pm
Nonstop5h 35m
Las Vegas Harry Reid Intl
Tue 3/31
10:20 pm-5:45 am
Nonstop4h 25m
BaltimoreLas Vegas
BWI - LAS
BWILAS
Baltimore/Washington
Wed 4/8
6:40 am-9:00 am
Nonstop5h 20m
Las Vegas Harry Reid Intl
Sun 4/12
11:55 pm-9:30 am
1 stop6h 35m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Wed 4/8
6:20 am-3:05 pm
2 stops11h 45m
Las Vegas Harry Reid Intl
Wed 4/15
11:35 am-11:40 pm
2 stops9h 05m
Washington, D.C.Las Vegas
DCA - LAS
DCALAS
Washington, D.C. Reagan-National
Tue 7/14
9:59 am-7:14 pm
2 stops12h 15m
Las Vegas Harry Reid Intl
Thu 7/23
8:00 am-9:00 pm
1 stop10h 00m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Fri 4/3
12:59 pm-3:21 pm
Nonstop5h 22m
Las Vegas Harry Reid Intl
Tue 4/7
8:10 am-3:49 pm
Nonstop4h 39m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Wed 5/13
12:45 pm-3:07 pm
Nonstop5h 22m
Las Vegas Harry Reid Intl
Fri 5/15
11:40 pm-7:17 am
Nonstop4h 37m
BaltimoreLas Vegas
BWI - LAS
BWILAS
Baltimore/Washington
Fri 4/24
6:20 pm-11:10 pm
1 stop7h 50m
Las Vegas Harry Reid Intl
Mon 4/27
10:15 pm-5:45 am
Nonstop4h 30m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
Booking 20 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. to Las Vegas. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, March is the cheapest month in which you can book a flight from Washington, D.C. to Las Vegas (average of $117). Flying from Washington, D.C. to Las Vegas in January is currently the most expensive (average of $166). 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.
A simple way to save on the total cost of your ticket is to fly from Washington, D.C. to Las Vegas in the morning. If you’re flexible enough to do this you can expect to save up to 29% on your trip compared to booking a flight at noon.
Travelers seeking maximum savings on their Washington, D.C. to Las Vegas flight should consider departing on Saturday 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.
The most flights from WAS to LAS are scheduled on a Sunday (13 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).
Denver (DEN) – chosen by Cheapflights users on 74% of 1-stop itineraries from Washington, D.C. to Las Vegas on Cheapflights.
Atlanta (ATL) is the most affordable 1-stop option, with an average round-trip price of $184.
Flights via Atlanta (ATL) have the shortest average one-way travel time for 1-stop routes: 7h 51m.
Flights via Boston (BOS) offer the fastest connection on this route, with an average layover time of 1h 17m.
About 19% of weekly flights between Washington, D.C. and Las Vegas have experienced delays in the past year, with the average delay time being 162 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon 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 just 9% of flights being delayed.
Overall
Crew
Comfort
Entertainment
Boarding
Food
Reviews
Thomas,Dec 2025
SEA - DEN
Overall
Crew
Comfort
Entertainment
Boarding
Food
Reviews
Thomas,Dec 2025
SEA - DEN
Overall
Crew
Comfort
Entertainment
Boarding
Food
Reviews
Thomas,Dec 2025
SEA - DEN
Overall
Crew
Comfort
Entertainment
Boarding
Food
Reviews
Thomas,Dec 2025
SEA - DEN
Overall
Crew
Comfort
Entertainment
Boarding
Food
Reviews
Thomas,Dec 2025
SEA - DEN
Overall
Crew
Comfort
Entertainment
Boarding
Food
Reviews
Thomas,Dec 2025
SEA - DEN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$70 | Average$212 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$99 | Average$242 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$167 | Average$315 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$168 | Average$390 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$180 | Average$441 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$186 | Average$491 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$188 | Average$353 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$238 | Average$481 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$253 | Average$411 | FlexibilityNo cancel fee | On-time62% |