Cheap flights from Las Vegas to Washington, D.C. from £73

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 13/12. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — WAS
3 Sep — 10 Sep1
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 29 August 2025.

Round-trip from

£123

One-way from

£73

Popular in

November

Cheapest in

July

Average price

£181

Good one-way deal

£107 or less
Frontier
  • Frontier
  • 11/9-14/9
  • 2 total stops
  • 21h 23m total
  • Las Vegas to Washington, D.C.
American Airlines
  • American Airlines
  • 13/12
  • Nonstop
  • 4h 29m total
  • Las Vegas to Washington, D.C.
Highest demand for flights based on searches. 10% potential increase in price (£21 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£5 potential savings vs. average return price).
Average for round-trip flights in August 2025
Price to beat on a one-way flight from Las Vegas Harry Reid Intl to Washington, D.C. (WAS).

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 29 August 2025.

Thu 11/923:00LAS - IAD
1 stop10h 55mFrontier
Sun 14/913:55IAD - LAS
1 stop10h 28mFrontier
Deal found 28/8£123
Thu 11/900:59LAS - DCA
1 stop8h 11mFrontier
Sat 13/918:00DCA - LAS
1 stop8h 33mFrontier
Deal found 28/8£124
Sat 11/1008:00LAS - DCA
1 stop25h 04mFrontier
Sat 18/1007:00DCA - LAS
1 stop11h 29mFrontier
Deal found 27/8£124
Fri 12/923:04LAS - IAD
1 stop16h 20mFrontier
Sun 14/913:55IAD - LAS
1 stop10h 28mFrontier
Deal found 28/8£127
Wed 10/900:59LAS - DCA
1 stop8h 11mFrontier
Sun 14/907:00DCA - LAS
1 stop7h 07mFrontier
Deal found 28/8£146
Thu 11/923:00LAS - IAD
1 stop10h 55mFrontier
Mon 15/913:55IAD - LAS
1 stop10h 28mFrontier
Deal found 28/8£146
Thu 25/908:30LAS - IAD
Nonstop4h 40mUnited Airlines
Tue 30/912:35IAD - LAS
Nonstop5h 00mUnited Airlines
Deal found 26/8£153
Fri 12/900:55LAS - IAD
1 stop8h 07mFrontier
Sat 13/919:14IAD - LAS
1 stop16h 56mFrontier
Deal found 28/8£156
Tue 9/900:59LAS - DCA
1 stop8h 11mFrontier
Tue 16/918:00DCA - LAS
1 stop8h 33mFrontier
Deal found 28/8£160
Wed 10/900:59LAS - DCA
1 stop8h 11mFrontier
Sat 13/918:00DCA - LAS
1 stop17h 02mFrontier
Deal found 28/8£165
Mon 3/1119:47LAS - IAD
1 stop18h 26mAlaska Airlines
Wed 5/1117:40IAD - LAS
1 stop7h 46mAlaska Airlines
Deal found 27/8£167
Thu 11/923:00LAS - IAD
1 stop10h 55mFrontier
Fri 12/919:14IAD - LAS
1 stop23h 25mFrontier
Deal found 28/8£169

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 29 August 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

Thu 11/9

23:00-12:55

1 stop10h 55m

Washington, D.C. Dulles Intl

Sun 14/9

13:55-21:23

1 stop10h 28m

£123

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Fri 12/9

06:00-16:59

1 stop7h 59m

Washington, D.C. Reagan-National

Sat 13/9

18:00-23:33

1 stop8h 33m

£124

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Sat 11/10

08:00-12:04

1 stop25h 04m

Washington, D.C. Reagan-National

Sat 18/10

07:00-15:29

1 stop11h 29m

£124

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Fri 12/9

06:00-16:59

1 stop7h 59m

Washington, D.C. Reagan-National

Sun 14/9

07:00-11:07

1 stop7h 07m

£146

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Wed 10/9

00:59-12:10

1 stop8h 11m

Washington, D.C. Reagan-National

Sun 14/9

07:00-11:07

1 stop7h 07m

£146

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Fri 12/9

00:55-12:02

1 stop8h 07m

Washington, D.C. Dulles Intl

Mon 15/9

13:55-21:23

1 stop10h 28m

£146

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Thu 11/9

23:00-12:55

1 stop10h 55m

Washington, D.C. Dulles Intl

Sat 13/9

13:02-23:50

1 stop13h 48m

£146

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Thu 4/12

10:25-21:02

1 stop7h 37m

Washington, D.C. Reagan-National

Sun 7/12

08:59-15:22

1 stop9h 23m

£160

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Thu 11/9

00:59-12:10

1 stop8h 11m

Washington, D.C. Reagan-National

Tue 16/9

18:00-23:33

1 stop8h 33m

£160

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Wed 10/9

00:59-12:10

1 stop8h 11m

Washington, D.C. Reagan-National

Tue 16/9

18:00-23:33

1 stop8h 33m

£160

Flights are sorted by cheapest return flights first.

Deals found on 26/8

Showing 1-10 of 36 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 22 August 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 66 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 29 August 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.

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

Explore weekly flight availability from Las Vegas to Washington, D.C.. 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 29 August 2025.

The most flights from LAS to WAS are scheduled on a Thursday (13 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (6 on average).

How much does it cost for a return flight from Las Vegas to Washington, D.C.?

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 8 daily outbound flights to Washington, D.C. from 0 different airlines.

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

    For as low as £190, Frontier can have you in Washington, D.C. from Las Vegas in 7h 50m. Las Vegas and Washington, D.C. are separated by a distance of 2059 mi. Both multi-stop and direct flights can be found to your destination and back.

  • 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 £73. United Airlines flights start at £73 while deals on Hawaiian Airlines start at £76 one-way.

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

    Consider Ethiopian Air (90%), Austrian Airlines (84%) or Brussels Airlines (84%) when booking your flight. These represent the most reliable airlines when flying from Las Vegas to Washington, D.C..

  • 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

Travelling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Silver Spring
Hanover
Oxon Hill
Woodbridge
Arlington
College Park
Laurel
Tysons

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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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