Cheap flights from Washington, D.C. Dulles Intl Airport to Las Vegas from $122
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/8. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Dulles Intl to Las Vegas
Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Las Vegas (LAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 4 July 2025.
Round-trip from | $234 |
---|---|
One-way from | $122 |
Popular in | December |
Cheapest in | June |
Average price | $542 |
Find flight deals from Dulles Intl to Las Vegas
Cheapest flights from Dulles Intl to Las VegasExplore the most affordable flight options available from Dulles Intl to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 July 2025.
Explore the most affordable flight options available from Dulles Intl to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 July 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from Dulles Intl to Las Vegas that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 4 July 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Las Vegas that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Tue 18/11
09:00-11:12
Nonstop5h 12m
Las Vegas Harry Reid Intl
Tue 18/11
13:20-20:40
Nonstop4h 20m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Tue 23/9
17:52-09:37
1 stop18h 45m
Las Vegas Harry Reid Intl
Fri 26/9
17:14-16:47
1 stop20h 33m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Sun 17/8
17:25-22:59
1 stop8h 34m
Las Vegas Harry Reid Intl
Sun 24/8
22:56-06:30
Nonstop4h 34m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Sun 17/8
07:30-09:29
Nonstop4h 59m
Las Vegas Harry Reid Intl
Sun 24/8
22:56-06:30
Nonstop4h 34m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Sun 31/8
17:52-23:26
1 stop8h 34m
Las Vegas Harry Reid Intl
Fri 5/9
17:46-07:33
1 stop10h 47m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Fri 29/8
16:30-23:15
1 stop9h 45m
Las Vegas Harry Reid Intl
Tue 2/9
07:35-17:15
1 stop6h 40m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Tue 22/7
06:20-10:09
1 stop6h 49m
Las Vegas Harry Reid Intl
Tue 29/7
22:50-08:59
1 stop7h 09m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Sat 2/8
22:10-00:14
Nonstop5h 04m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Sun 17/8
17:25-22:59
1 stop8h 34m
Washington, D.C.Las Vegas
IAD - LAS
IADLAS
Washington, D.C. Dulles Intl
Tue 12/8
09:00-18:16
1 stop12h 16m
Best time to book a flight from Dulles Intl to Las Vegas
Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Dulles Intl with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Las Vegas
How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Las Vegas?
Use this chart to determine the optimal time to book a return flight from Dulles Intl to Las Vegas. Price data was last updated on 27 June 2025.
Booking 75 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. Dulles Intl Airport to Las Vegas. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Las Vegas?
Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Las Vegas (average of $978). Flying from Washington, D.C. Dulles Intl Airport to Las Vegas in December is currently the most expensive (average of $1,549). 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.
What is the cheapest time of day to fly from IAD to LAS?
Find hourly flight availability from Dulles Intl to Las Vegas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 4 July 2025.
When flying from Washington, D.C. Dulles Intl Airport to Las Vegas, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from Washington, D.C. Dulles Intl Airport to Las Vegas
Explore weekly flight availability from Dulles Intl to Las Vegas. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 4 July 2025.
The most flights from IAD to LAS are scheduled on a Wednesday (7 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 on average).
Reviews of airlines servicing Las Vegas
Get insights into the airlines that provide service to Las Vegas. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Las Vegas. Reviews last updated 4 July 2025.
Read reviews from past customers who have flown with Alaska Airlines, Southwest, andDelta from Washington, D.C. Dulles Intl Airport to Las Vegas. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
Entertainment
Crew
Food
Overall
Comfort
Reviews
James,Apr 2025
LAX - SFO
Boarding
Entertainment
Crew
Food
Overall
Comfort
Reviews
James,Apr 2025
LAX - SFO
Boarding
Entertainment
Crew
Food
Overall
Comfort
Reviews
James,Apr 2025
LAX - SFO
Boarding
Entertainment
Crew
Food
Overall
Comfort
Reviews
James,Apr 2025
LAX - SFO
Boarding
Entertainment
Crew
Food
Overall
Comfort
Reviews
James,Apr 2025
LAX - SFO
Boarding
Entertainment
Crew
Food
Overall
Comfort
Reviews
James,Apr 2025
LAX - SFO
Related info for your journey
Find useful and relevant information for your journey from Dulles Intl to Las Vegas. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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How does Cheapflights help users find flights from Dulles Intl to Las Vegas?
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Why should you use Cheapflights to find cheap flight tickets from Dulles Intl to Las Vegas?
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Can Cheapflights find flights from Dulles Intl to Las Vegas with no change fees?
Yes, we can. To see specific flights from Dulles Intl to Las Vegas with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from Dulles Intl to Las Vegas become cheaper?
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