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Cheap flights from Las Vegas to Washington, D.C. from £84

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 14/5. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — WAS
31 Mar — 7 Apr1
1 adult

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

Discover tips and strategies to find the most affordable flight options for your journey from Las Vegas (LAS) to Washington, D.C. (WAS). 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 26 March 2025.

Round-trip from

£169

One-way from

£84

Popular in

July

Cheapest in

August

Average price

£282

Good one-way deal

£132 or less
United Airlines
  • United Airlines
  • 29/4-3/5
  • Nonstop
  • 9h 50m total
  • Las Vegas to Washington, D.C.
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Southwest
  • Southwest
  • 14/5
  • Nonstop
  • 4h 30m total
  • Las Vegas to Washington, D.C.
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Highest demand for flights based on searches. 0% potential increase in price (£1 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£5 potential savings vs. average return price).
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Average for round-trip flights in March 2025
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Price to beat on a one-way flight from Las Vegas Harry Reid Intl to Washington, D.C. (WAS).
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Find flight deals from Las Vegas to Washington, D.C.

Cheapest flights from Las Vegas to Washington, D.C.
Explore the most affordable flight options available from Las Vegas to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 March 2025.

Tue 29/407:00LAS - IAD
Nonstop4h 33mUnited Airlines
Sat 3/515:55IAD - LAS
Nonstop5h 17mUnited Airlines
Deal found 25/3£169
Fri 9/523:00LAS - IAD
Nonstop4h 31mFrontier
Fri 16/508:01IAD - LAS
Nonstop5h 15mFrontier
Deal found 25/3£179
Thu 24/410:30LAS - DCA
1 stop8h 29mAlaska Airlines
Sat 3/517:10DCA - LAS
1 stop19h 04mAlaska Airlines
Deal found 25/3£184
Tue 6/506:38LAS - IAD
1 stop7h 44mAlaska Airlines
Fri 9/517:00IAD - LAS
1 stop8h 24mAlaska Airlines
Deal found 25/3£184
Wed 23/417:34LAS - IAD
1 stop11h 09mHawaiian Airlines
Wed 30/417:00IAD - LAS
1 stop8h 24mHawaiian Airlines
Deal found 25/3£186
Fri 18/420:31LAS - DCA
1 stop8h 54mJetBlue
Sat 26/407:00DCA - LAS
1 stop9h 05mJetBlue
Deal found 26/3£197
Thu 24/414:00LAS - DCA
1 stop6h 30mSouthwest
Sat 3/516:40DCA - LAS
Nonstop5h 10mSouthwest
Deal found 25/3£203
Thu 29/510:10LAS - DCA
1 stop7h 55mHawaiian Airlines
Mon 2/609:59DCA - LAS
1 stop8h 54mHawaiian Airlines
Deal found 25/3£210
Sat 28/600:59LAS - DCA
1 stop7h 47mUnited Airlines
Wed 2/706:25DCA - LAS
1 stop7h 30mUnited Airlines
Deal found 25/3£216
Tue 27/522:15LAS - IAD
1 stop7h 45mDelta
Wed 11/606:00IAD - LAS
1 stop7h 20mDelta
Deal found 25/3£231
Fri 9/513:55LAS - DCA
1 stop6h 31mDelta
Fri 16/519:33DCA - LAS
1 stop7h 38mDelta
Deal found 25/3£239
Fri 30/505:20LAS - IAD
1 stop8h 30mSouthwest
Sat 14/613:55IAD - LAS
1 stop9h 35mSouthwest
Deal found 25/3£250

Cheapflights Fare Finder

Customise your flight search to find flights from Las Vegas to Washington, D.C. 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 858,174 searches. Data last updated 26 March 2025.
Use the filters below to find and compare flights from Las Vegas to Washington, D.C. that are best for you.

Fly from

Las Vegas

Fly to

Washington, D.C.

Route

Depart

Return

Price

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Tue 29/4

07:00-14:33

Nonstop4h 33m

Washington, D.C. Dulles Intl

Sat 3/5

15:55-18:12

Nonstop5h 17m

£169

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Fri 9/5

23:00-06:31

Nonstop4h 31m

Washington, D.C. Dulles Intl

Fri 16/5

08:01-10:16

Nonstop5h 15m

£179

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Thu 24/4

10:30-21:59

1 stop8h 29m

Washington, D.C. Reagan-National

Sat 3/5

17:10-09:14

1 stop19h 04m

£184

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Tue 6/5

06:38-17:22

1 stop7h 44m

Washington, D.C. Dulles Intl

Fri 9/5

17:00-22:24

1 stop8h 24m

£184

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Wed 23/4

17:34-07:43

1 stop11h 09m

Washington, D.C. Dulles Intl

Wed 30/4

17:00-22:24

1 stop8h 24m

£186

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Fri 18/4

20:31-08:25

1 stop8h 54m

Washington, D.C. Reagan-National

Sat 26/4

07:00-13:05

1 stop9h 05m

£197

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Thu 24/4

14:00-23:30

1 stop6h 30m

Washington, D.C. Reagan-National

Sat 3/5

16:40-18:50

Nonstop5h 10m

£203

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Thu 29/5

10:10-21:05

1 stop7h 55m

Washington, D.C. Reagan-National

Mon 2/6

09:59-15:53

1 stop8h 54m

£210

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Sat 28/6

00:59-11:46

1 stop7h 47m

Washington, D.C. Reagan-National

Wed 2/7

06:25-10:55

1 stop7h 30m

£216

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Tue 27/5

22:15-09:00

1 stop7h 45m

Washington, D.C. Dulles Intl

Wed 11/6

06:00-10:20

1 stop7h 20m

£231

Flights are sorted by cheapest return flights first.

Deals found on 25/3

Showing 1-10 of 28 results
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Best time to book a flight from Las Vegas to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Las Vegas with our price prediction graph.
Estimated return 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 Las Vegas to Washington, D.C.

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

Use this chart to determine the optimal time to book a return flight from Las Vegas to Washington, D.C.. Price data was last updated on 21 March 2025.

The price you pay for your flight from Las Vegas to Washington, D.C. may vary depending on when you book. For the best chance of a lower fare, look to book 27 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 Las Vegas to Washington, D.C.?

Currently, January is the cheapest month in which you can book a flight from Las Vegas to Washington, D.C. (average of £599). Flying from Las Vegas to Washington, D.C. in July is currently the most expensive (average of £947). 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 LAS to WAS?

Find hourly flight availability from Las Vegas to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 26 March 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Las Vegas to Washington, D.C. as you normally would.

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. when rainfall is around 66.0 mm.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated 26 March 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines and Delta from Las Vegas to Washington, D.C. to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very Good
4,274 reviews
Check prices

Comfort

8.1

Overall

8.1

Food

7.1

Crew

8.6

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very Good
4,274 reviews
Southwest
8.1
Very Good
4,274 reviews
Check prices

Comfort

8.1

Overall

8.1

Food

7.1

Crew

8.6

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Alaska Airlines
8.0
Very Good
9,789 reviews
Southwest
8.1
Very Good
4,274 reviews
Check prices

Comfort

8.1

Overall

8.1

Food

7.1

Crew

8.6

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very Good
7,890 reviews
Southwest
8.1
Very Good
4,274 reviews
Check prices

Comfort

8.1

Overall

8.1

Food

7.1

Crew

8.6

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Hawaiian Airlines
7.9
Good
2,330 reviews
Southwest
8.1
Very Good
4,274 reviews
Check prices

Comfort

8.1

Overall

8.1

Food

7.1

Crew

8.6

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,605 reviews
Southwest
8.1
Very Good
4,274 reviews
Check prices

Comfort

8.1

Overall

8.1

Food

7.1

Crew

8.6

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

Find useful and relevant information for your journey from Las Vegas to Washington, D.C.. 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 from for flights from Las Vegas to Washington, D.C.?

    Located just 6.2 mi from the city center, Las Vegas Harry Reid Intl is the airport most travelers will use when flying to Washington, D.C. from Las Vegas. Booking flights from Harry Reid Intl (LAS) to Washington, D.C. should be relatively easy as there are 4 daily outbound flights to Washington, D.C. from 0 different airlines.

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

    According to our current data, United Airlines (£169), Frontier (£179), and Alaska Airlines (£184) offers the cheapest pricing from Las Vegas to Washington, D.C.. United Airlines is priced at 38% lower than the current average price of a flight leaving 3 months from now.

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

    To fly one-way, consider booking your trip with Southwest, which is currently one of the cheapest options available, starting at £84. United Airlines flights start at £84 while deals on Alaska Airlines start at £91 one-way.

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

    Consider United Airlines (87%), Brussels Airlines (85%) or Austrian Airlines (82%) when booking your flight. These represent the most reliable airlines when flying from Las Vegas to Washington, D.C..

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

    Looking for the cheapest flight from Las Vegas to Washington, D.C.? While on average our users pay £146, our data indicates the cheapest price to be £131. The most popular route (Las Vegas Harry Reid Intl - Washington, D.C. Reagan-National), is priced around £166.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Las Vegas to Washington, D.C. (average of £599). Flying from Las Vegas to Washington, D.C. in July is currently the most expensive (average of £947). 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

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Deals for Las Vegas to Washington, D.C. flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Las Vegas to Washington, D.C.?

Millions of users choose and trust Cheapflights to book the best flight deals from Las Vegas to Washington, D.C. for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Las Vegas to Washington, D.C. with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Las Vegas to Washington, D.C., users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Las Vegas to Washington, D.C. become cheaper?

Yes, Cheapflights offers price alerts on Las Vegas to Washington, D.C. flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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