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$123+ Cheap flights from Washington, D.C. (WAS) 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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — LAS
Jun 7 — Jun 141
Sun 6/7
Sun 6/14
1 adult, Economy
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Find cheap flights from Washington, D.C. 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

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Cheapflights Tip: The best prices from Washington, D.C. to Las Vegas Harry Reid Intl are usually found in August or July, booked 20 days in advance, depart on a Saturday or Tuesday and return on a Friday

Cheap flight deals from Washington, D.C. to Las Vegas

Cheapest flights from Washington, D.C. to Las Vegas
Explore the most affordable flight options available from Washington, D.C. to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 8, 2026.

This Orbitz deal was found by Cheapflights users on 5/7. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2710:38 am
BWI
-
LAS
1 stop17h 15m
Frontier
Tue 6/28:00 am
LAS
-
BWI
1 stop22h 15m
Frontier
Deal found 5/7$246
This Kiwi.com deal was found by Cheapflights users on 5/5. 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.
Fri 5/2911:51 am
BWI
-
LAS
1 stop7h 24m
Frontier
Sun 5/3111:29 pm
LAS
-
BWI
1 stop8h 27m
Frontier
Deal found 5/5$247
This Frontier deal was found by Cheapflights users on 5/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/139:47 am
BWI
-
LAS
1 stop15h 19m
Frontier
Wed 6/246:45 am
LAS
-
BWI
1 stop13h 15m
Frontier
Deal found 5/7$248
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 5/269:13 pm
BWI
-
LAS
2 stops29h 25m
Frontier
Fri 5/2910:25 pm
LAS
-
BWI
1 stop7h 42m
Frontier
Deal found 5/6$249
This Frontier deal was found by Cheapflights users on 5/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/192:25 pm
BWI
-
LAS
1 stop12h 19m
Frontier
Thu 7/237:25 am
LAS
-
BWI
1 stop10h 11m
Frontier
Deal found 5/6$250
This Kiwi.com deal was found by Cheapflights users on 5/8. 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.
Wed 6/243:09 pm
BWI
-
LAS
1 stop8h 37m
Frontier
Sat 7/49:15 am
LAS
-
BWI
1 stop8h 20m
Frontier
Deal found 5/8$251
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 6/95:14 pm
BWI
-
LAS
1 stop9h 50m
Frontier
Thu 6/119:15 am
LAS
-
BWI
1 stop8h 20m
Frontier
Deal found 5/6$252
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 5/179:59 pm
BWI
-
LAS
1 stop25h 48m
Frontier
Thu 5/2811:01 pm
LAS
-
BWI
1 stop8h 55m
Frontier
Deal found 5/4$253
This Expedia deal was found by Cheapflights users on 5/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/2511:51 am
BWI
-
LAS
1 stop7h 24m
Frontier
Thu 5/2811:01 pm
LAS
-
BWI
1 stop8h 55m
Frontier
Deal found 5/6$254
This Frontier deal was found by Cheapflights users on 5/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2111:41 am
BWI
-
LAS
1 stop7h 24m
Frontier
Sat 5/2311:29 pm
LAS
-
BWI
1 stop8h 17m
Frontier
Deal found 5/4$255
This Kiwi.com deal was found by Cheapflights users on 5/3. 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.
Fri 6/59:23 pm
BWI
-
LAS
2 stops19h 21m
Frontier
Tue 6/911:36 pm
LAS
-
BWI
1 stop8h 06m
Frontier
Deal found 5/3$256
This Kiwi.com deal was found by Cheapflights users on 5/6. 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.
Wed 7/87:27 pm
BWI
-
LAS
1 stop31h 46m
Frontier
Sun 7/129:42 pm
LAS
-
BWI
1 stop8h 22m
Frontier
Deal found 5/6$257

Find flight deals from Washington, D.C. to Las Vegas

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) 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 May 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$246
(Orbitz)

One-way from

$123
(Trip.com)

Popular in

March

Cheapest in

August

Average price

$404

Good round-trip deal

$375 or less

Good one-way deal

$166 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Las Vegas Harry Reid Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Las Vegas Harry Reid Intl flights.
Search Deals
From Washington, D.C. (WAS) to Las Vegas Harry Reid Intl
Search Deals
One-way flight from Washington, D.C. (WAS) to Las Vegas Harry Reid Intl
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($100 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from Washington, D.C. (WAS) to Las Vegas Harry Reid Intl.
Search Deals
Price to beat on a one-way flight from Washington, D.C. (WAS) to Las Vegas Harry Reid Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 May 8, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Wed 7/8

11:45 am-5:50 pm

2 stops9h 05m

Las Vegas Harry Reid Intl

Tue 7/14

5:50 am-3:55 pm

1 stop7h 05m

$402

BaltimoreLas Vegas

BWI - LAS

BWILAS

Baltimore/Washington

Wed 7/22

12:25 pm-5:14 pm

1 stop7h 49m

Las Vegas Harry Reid Intl

Fri 7/24

5:00 pm-11:26 am

1 stop15h 26m

$410

BaltimoreLas Vegas

BWI - LAS

BWILAS

Baltimore/Washington

Sat 7/11

7:35 pm-9:45 pm

Nonstop5h 10m

Las Vegas Harry Reid Intl

Wed 7/15

6:50 am-4:20 pm

1 stop6h 30m

$482

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sat 6/13

3:35 pm-9:45 pm

2 stops9h 10m

Las Vegas Harry Reid Intl

Wed 6/24

6:50 am-4:10 pm

1 stop6h 20m

$492

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sat 6/13

10:40 am-3:45 pm

2 stops8h 05m

Las Vegas Harry Reid Intl

Tue 6/16

6:50 am-6:55 pm

1 stop9h 05m

$492

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sun 7/26

8:59 am-1:58 pm

1 stop7h 59m

Las Vegas Harry Reid Intl

Wed 8/5

7:59 am-9:00 pm

1 stop10h 01m

$496

BaltimoreLas Vegas

BWI - LAS

BWILAS

Baltimore/Washington

Tue 8/4

3:10 pm-6:40 pm

1 stop6h 30m

Las Vegas Harry Reid Intl

Mon 8/10

11:00 pm-6:30 am

Nonstop4h 30m

$504
Quickest round-trip

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Mon 5/25

4:50 pm-7:00 pm

Nonstop5h 10m

Las Vegas Harry Reid Intl

Wed 6/3

9:10 am-4:40 pm

Nonstop4h 30m

$504

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Thu 6/4

9:05 am-2:25 pm

2 stops8h 20m

Las Vegas Harry Reid Intl

Tue 6/9

9:25 am-8:50 pm

2 stops8h 25m

$509

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 5/30

12:50 pm-6:23 pm

1 stop8h 33m

Las Vegas Harry Reid Intl

Mon 6/1

11:59 pm-9:24 am

1 stop6h 25m

$511

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/5

Showing 1-10 of 60 resultsSorted by cheapest first
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Compare providers for flights from Washington, D.C. 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 Washington, D.C. to Las Vegas in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
JustAirTicketPrice Accuracy-Trust Score*1 star
eDreamsPrice Accuracy2 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
GotogatePrice Accuracy2 starsTrust Score*3 stars
Super.comPrice Accuracy-Trust 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.-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.-Las Vegas flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Las Vegas flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-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.-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 Washington, D.C. to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Washington, D.C. 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. to Las Vegas

How far ahead should I book a flight from Washington, D.C. to Las Vegas?

Booking 19 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.

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

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to Las Vegas (average of $218). Flying from Washington, D.C. to Las Vegas in April is currently the most expensive (average of $550). 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 WAS to LAS?

Find hourly flight availability from Washington, D.C. 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 May 8, 2026.

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 26% on your trip compared to booking a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Las Vegas. Price data was last updated on May 2, 2026.

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.

Weekly flight availability from Washington, D.C. to Las Vegas

Explore weekly flight availability from Washington, D.C. 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 May 8, 2026.

The most flights from WAS to LAS are scheduled on a Thursday (12 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

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

What’s the top layover airport for flights from Washington, D.C. to Las Vegas?

Share of 1-stop round-trip flights from Washington, D.C. to Las Vegas chosen by Cheapflights users in the past 12 months, using the same layover each way.

Denver (DEN) – chosen by Cheapflights users on 59% of 1-stop itineraries from Washington, D.C. to Las Vegas on Cheapflights.

What’s the cheapest layover airport for flights from Washington, D.C. to Las Vegas?

Average round-trip fare for 1-stop flights from Washington, D.C. to Las Vegas, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $150.

What’s the fastest layover option from Washington, D.C. to Las Vegas?

Shortest average travel time for 1-stop one-way flights from Washington, D.C. to Las Vegas, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Charlotte (CLT) have the shortest average one-way travel time for 1-stop routes: 7h 24m.

Which airport typically offers the quickest layover for flights from Washington, D.C. to Las Vegas?

Average layover duration for 1-stop one-way flights from Washington, D.C. to Las Vegas, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Boston (BOS) offer the fastest connection on this route, with an average layover time of 1h 17m.

How often are flights from Washington, D.C. to Las Vegas delayed?

About 18% 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.

What is the most punctual flight time for Washington, D.C. to Las Vegas flights?

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.

What day of the week experiences the fewest flight delays on this route?

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.

Which airline has the best punctuality record on Washington, D.C. to Las Vegas flights?

Over the last year, American Airlines have had the lowest number of delays on this route, with just 7% of flights being delayed.

The best insider tips for Washington, D.C. 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. 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 May 8, 2026.
Get a feel of what it's like to fly with Southwest,United Airlines, andAmerican Airlines from Washington, D.C. to Las Vegas by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,302 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

7.9

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
7.9
Good
4,302 reviews
Southwest
7.9
Good
4,302 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

7.9

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
9,693 reviews
Southwest
7.9
Good
4,302 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

7.9

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
11,667 reviews
Southwest
7.9
Good
4,302 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

7.9

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.
Spirit Airlines
6.3
Okay
8,638 reviews
Southwest
7.9
Good
4,302 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

7.9

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
5.6
Fair
2,961 reviews
Southwest
7.9
Good
4,302 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

7.9

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 Washington, D.C. 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.?

    If you book a flight to Las Vegas from Washington, D.C., you will be flying to Harry Reid Intl, which is the city’s only airport. Las Vegas Harry Reid Intl (LAS) is located 6.2 mi from the center of Las Vegas. There are 8 flights from Washington, D.C. to Harry Reid Intl per day from 9 different airlines.

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

    Southwest, Sun Country Air, and Alaska Airlines can get you from Washington, D.C. to Las Vegas in just under 7h 49m. Your travel time can differ by up to 1h 16m. There are 2099 mi between Washington, D.C. and Las Vegas. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Spirit Airlines, at $70, was found to be the cheapest airline from Washington, D.C. to Las Vegas.Alternate airlines to your destination round-trip include Frontier and Delta. Spirit Airlines is priced at 82% lower than the current average price of a flight leaving 3 months from now.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $64. Southwest flights start at $103 while deals on United Airlines start at $110 one-way.

  • What are the most popular routes from Washington, D.C. to Las Vegas?

    The most popular route from Washington, D.C. to Las Vegas is Washington, D.C. Dulles Intl - Las Vegas Harry Reid Intl. You may also consider Washington, D.C. Reagan-National - Las Vegas Harry Reid Intl or Baltimore/Washington - Las Vegas Harry Reid Intl.

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

    The top 3 most reliable airlines when flying from Washington, D.C. to Las Vegas are Ethiopian Air (90%), United Airlines (85%) and Austrian Airlines (83%).

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

    Looking at all options, your cheapest flight can be booked for $104. While the most popular route (Washington, D.C. Dulles Intl - Las Vegas Harry Reid Intl) can be booked for $223 on average, our data indicates $1,138 when flying from Washington, D.C. to Las Vegas.

  • Can I find deals for flights from Washington, D.C. to Las Vegas that include hotel bookings?

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

  • How can I find direct flights from Washington, D.C. to Las Vegas?

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

  • Can I find deals for business class flights from Washington, D.C. to Las Vegas?

    Yes. Cheapflights offers flight deals from Washington, D.C. 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. to Las Vegas?

    Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to Las Vegas (average of $218). Flying from Washington, D.C. to Las Vegas in April is currently the most expensive (average of $550). 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.

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Traveling to a place near Las Vegas?

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Alternative routes for Washington, D.C. to Las Vegas

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

Top 9 airlines flying from Washington, D.C. to Las Vegas

Discover the top 9 airlines that operate flights from Washington, D.C. 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 May 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$70Average$190FlexibilityNo cancel feeOn-time65%
FrontierCheapest$116Average$254FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$167Average$315FlexibilityNo cancel feeOn-time83%
DeltaCheapest$168Average$447FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$180Average$471FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$186Average$502FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$188Average$338FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$239Average$506FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$265Average$424FlexibilityNo cancel feeOn-time62%

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