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$122+ Cheap flights from Dulles Intl (IAD) to Las Vegas (LAS)

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 5/23. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LAS
Apr 27 — May 41
Mon 4/27
Mon 5/4
1 adult, Economy
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Find cheap flights from Dulles Intl to Las Vegas with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl are usually found in August or July, booked 20 days in advance, depart on a Saturday or Monday and return on a Friday

Cheap flight deals from Dulles Intl to Las Vegas

Cheapest flights from Dulles Intl to Las Vegas
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 March 28, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/297:45 am
IAD
-
LAS
1 stop8h 08m
Frontier
Sat 5/3012:35 am
LAS
-
IAD
Nonstop4h 37m
Frontier
Deal found 3/27$303
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/99:20 am
IAD
-
LAS
Nonstop4h 58m
Frontier
Sun 6/2112:15 am
LAS
-
IAD
Nonstop4h 35m
Frontier
Deal found 3/27$304
This Cheapflightsfares deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/79:12 am
IAD
-
LAS
Nonstop5h 17m
Frontier
Tue 6/912:15 am
LAS
-
IAD
Nonstop4h 35m
Frontier
Deal found 3/27$305
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/77:45 am
IAD
-
LAS
1 stop8h 08m
Frontier
Fri 6/1912:15 am
LAS
-
IAD
Nonstop4h 35m
Frontier
Deal found 3/27$306
This Cheapflightsfares deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/109:20 am
IAD
-
LAS
Nonstop4h 58m
Frontier
Tue 6/1612:15 am
LAS
-
IAD
Nonstop4h 35m
Frontier
Deal found 3/27$307
This Cheapflightsfares deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/289:12 am
IAD
-
LAS
Nonstop5h 17m
Frontier
Sun 5/3112:35 am
LAS
-
IAD
Nonstop4h 37m
Frontier
Deal found 3/27$308
This CheapOair deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/219:12 am
IAD
-
LAS
Nonstop5h 17m
Frontier
Sun 5/2411:00 pm
LAS
-
IAD
1 stop9h 39m
Frontier
Deal found 3/27$309
This Cheapflightsfares deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1712:24 pm
IAD
-
LAS
1 stop13h 04m
Frontier
Mon 4/2012:19 pm
LAS
-
IAD
1 stop9h 17m
Frontier
Deal found 3/27$310
This Kiwi.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/249:12 am
IAD
-
LAS
Nonstop5h 17m
Frontier
Wed 6/312:35 am
LAS
-
IAD
Nonstop4h 37m
Frontier
Deal found 3/25$311
This Kiwi.com deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/610:25 pm
IAD
-
LAS
2 stops27h 11m
Frontier
Tue 4/1412:19 pm
LAS
-
IAD
1 stop9h 17m
Frontier
Deal found 3/22$312
This Kiwi.com deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/316:20 am
IAD
-
LAS
1 stop9h 06m
Frontier
Wed 4/812:41 pm
LAS
-
IAD
1 stop8h 55m
Frontier
Deal found 3/23$313
This Cheapflightsfares deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/296:29 pm
IAD
-
LAS
1 stop8h 25m
Frontier
Sat 4/46:00 am
LAS
-
IAD
1 stop7h 21m
Frontier
Deal found 3/25$314

Find 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 March 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$303
(Cheapflightsfares)

One-way from

$122
(Kiwi.com)

Popular in

March

Cheapest in

August

Average price

$579

Good round-trip deal

$505 or less

Good one-way deal

$250 or less
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Las Vegas Harry Reid Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Las Vegas Harry Reid Intl flights.
Search Deals
From Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($100 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl.
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated March 28, 2026.
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

Cheapest round-trip
Quickest round-trip

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 4/25

9:00 am-11:21 am

Nonstop5h 21m

Las Vegas Harry Reid Intl

Sat 5/2

11:40 pm-7:17 am

Nonstop4h 37m

$381

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Fri 4/17

7:50 pm-10:13 pm

Nonstop5h 23m

Las Vegas Harry Reid Intl

Mon 4/20

7:04 pm-6:37 am

1 stop8h 33m

$422

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Thu 5/28

5:55 am-12:05 pm

2 stops9h 10m

Las Vegas Harry Reid Intl

Mon 6/1

12:40 pm-12:20 am

2 stops8h 40m

$439

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 4/25

12:59 pm-3:21 pm

Nonstop5h 22m

Las Vegas Harry Reid Intl

Tue 4/28

8:10 am-3:49 pm

Nonstop4h 39m

$449

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Thu 5/7

7:50 pm-10:13 pm

Nonstop5h 23m

Las Vegas Harry Reid Intl

Sun 5/10

11:40 pm-7:17 am

Nonstop4h 37m

$451

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Fri 5/1

9:00 am-11:22 am

Nonstop5h 22m

Las Vegas Harry Reid Intl

Thu 5/7

11:40 pm-7:17 am

Nonstop4h 37m

$521

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Fri 4/24

9:00 am-11:21 am

Nonstop5h 21m

Las Vegas Harry Reid Intl

Mon 4/27

8:10 am-3:49 pm

Nonstop4h 39m

$526

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Thu 4/23

5:55 am-2:25 pm

2 stops11h 30m

Las Vegas Harry Reid Intl

Thu 4/30

10:05 am-12:20 am

2 stops11h 15m

$569

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Thu 5/21

5:55 am-12:05 pm

2 stops9h 10m

Las Vegas Harry Reid Intl

Thu 5/28

10:05 am-12:20 am

2 stops11h 15m

$569

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Fri 5/15

7:50 pm-10:13 pm

Nonstop5h 23m

Las Vegas Harry Reid Intl

Sun 5/17

11:40 pm-7:17 am

Nonstop4h 37m

$596

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Dulles Intl to Las Vegas

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Las Vegas in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Las Vegas flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Las Vegas flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Las Vegas flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Las Vegas flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Las Vegas flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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 round-trip flight from Dulles Intl to Las Vegas. Price data was last updated on March 13, 2026.

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.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Las Vegas?

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 $270). 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 March 28, 2026.

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 44% on airfare.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Las Vegas?

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Las Vegas. Price data was last updated on March 23, 2026.

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.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Las Vegas?

The best insider tips for Washington, D.C. Dulles Intl Airport to Las Vegas flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. Dulles Intl Airport to Las Vegas trip
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on IAD and LAS

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

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 March 28, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited Airlines from Washington, D.C. Dulles Intl Airport to Las Vegas to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,331 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,331 reviews
Southwest
8.0
Very good
4,331 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,341 reviews
Southwest
8.0
Very good
4,331 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,491 reviews
Southwest
8.0
Very good
4,331 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,506 reviews
Southwest
8.0
Very good
4,331 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Frontier
5.7
Fair
3,014 reviews
Southwest
8.0
Very good
4,331 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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.

  • What airport do you fly into for flights to Las Vegas from Washington, D.C. Dulles Intl?

    Las Vegas Harry Reid Intl (LAS), located 6.2 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Dulles Intl to Las Vegas. 7 airlines have flights to Harry Reid Intl from Washington, D.C. Dulles Intl on a regular basis. Booking flights from Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl should not be difficult; the airport handles an average of 2 inbound flights from Washington, D.C. Dulles Intl per day.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Las Vegas?

    There are many flights that can get you from Washington, D.C. Dulles Intl Airport to Las Vegas in 5h 21m. Fly via United Airlines or Southwest to get the fastest option. Airlines will cover a distance of 2059 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Las Vegas round-trip?

    Flying on Spirit Airlines is currently your cheapest option to Las Vegas, with prices starting at $70. Additional round-trip tickets that might be worth considering are offered by Frontier and Delta, with the lowest prices starting at $99 and $173, respectively. These flights start at 83% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Las Vegas one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $64. However, be on the lookout for offers from United Airlines and Southwest, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Las Vegas for a low price.

  • What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Las Vegas?

    The top 3 most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to Las Vegas are ITA Airways (100%), Ethiopian Air (89%) and United Airlines (82%).

  • What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Las Vegas?

    Looking at all options, your cheapest flight can be booked for $190. While the most popular route (Washington, D.C. Dulles Intl - Las Vegas Harry Reid Intl) can be booked for $158 on average, our data indicates $1,262 when flying from Washington, D.C. Dulles Intl Airport to Las Vegas.

  • Can I find deals for flights from Dulles Intl to Las Vegas that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Las Vegas flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Las Vegas?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Las Vegas.

  • Can I find deals for business class flights from Dulles Intl to Las Vegas?

    Yes. Cheapflights offers flight deals from Dulles Intl to Las Vegas by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Las Vegas?

    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 $270). 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.

See more FAQs

Traveling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Paradise
Henderson
Mesquite
North Las Vegas
Kingman
Winchester
Boulder City
Needles
Sunrise Manor

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Alternative routes for Dulles Intl to Las Vegas

See prices for flight routes from nearby airports that may be better suited for you.
Reagan-National to Las Vegas flights
Baltimore to Las Vegas flights
Dulles Intl to Reno flights
Baltimore to Reno flights
Reagan-National to Reno flights

Top 7 airlines flying from Dulles Intl to Las Vegas

Discover the top 7 airlines that operate flights from Dulles Intl to Las Vegas. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$70Average$167FlexibilityNo cancel feeOn-time65%
FrontierCheapest$99Average$205FlexibilityNo cancel feeOn-time62%
DeltaCheapest$173Average$394FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$224Average$482FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$230Average$299FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$256Average$456FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$368Average$520FlexibilityNo cancel feeOn-time71%

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