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Cheap flights from Las Vegas to Washington, D.C. from £79

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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — WAS
12 Oct — 19 Oct1
1 adult
1 adult, Economy

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 12 September 2025.

Round-trip from

£120

One-way from

£79

Popular in

November

Cheapest in

July

Average price

£247

Good one-way deal

£107 or less
Southwest
  • Southwest
  • 29/10-12/11
  • Nonstop
  • 9h 45m total
  • Las Vegas to Washington, D.C.
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Hawaiian Airlines
  • Hawaiian Airlines
  • 28/10
  • 1 total stop
  • 7h 58m total
  • Las Vegas to Washington, D.C.
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Highest demand for flights based on searches. 10% potential increase in price (£21 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£4 potential savings vs. average return price).
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Average for round-trip flights in September 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 12 September 2025.

Wed 29/1008:55LAS - DCA
Nonstop4h 30mSouthwest
Wed 12/1116:35DCA - LAS
Nonstop5h 15mSouthwest
Deal found 10/9£120
Wed 5/1123:50LAS - IAD
Nonstop4h 19mUnited Airlines
Tue 11/1109:00IAD - LAS
Nonstop5h 25mUnited Airlines
Deal found 10/9£120
Fri 24/1000:59LAS - DCA
1 stop13h 00mFrontier
Sat 1/1118:00DCA - LAS
1 stop8h 29mFrontier
Deal found 10/9£124
Tue 11/1106:55LAS - DCA
1 stop6h 15mSouthwest
Wed 19/1116:35DCA - LAS
Nonstop5h 15mSouthwest
Deal found 11/9£128
Sat 15/1111:35LAS - DCA
Nonstop4h 25mSouthwest
Mon 17/1116:35DCA - LAS
Nonstop5h 15mSouthwest
Deal found 11/9£131
Mon 6/1023:20LAS - IAD
Nonstop4h 35mUnited Airlines
Wed 8/1019:59IAD - LAS
Nonstop5h 00mUnited Airlines
Deal found 11/9£132
Thu 11/1219:04LAS - IAD
1 stop8h 47mUnited Airlines
Sat 13/1208:21IAD - LAS
Nonstop5h 13mUnited Airlines
Deal found 10/9£137
Tue 11/1106:55LAS - DCA
1 stop6h 15mSouthwest
Sat 15/1112:15DCA - LAS
2 stops9h 50mSouthwest
Deal found 11/9£139
Wed 3/1206:05LAS - DCA
1 stop5h 55mSouthwest
Sat 6/1206:05DCA - LAS
Nonstop5h 20mSouthwest
Deal found 10/9£140
Wed 5/1123:40LAS - DCA
1 stop6h 05mSouthwest
Tue 11/1116:35DCA - LAS
Nonstop5h 15mSouthwest
Deal found 10/9£144
Thu 2/1013:11LAS - IAD
Nonstop4h 42mUnited Airlines
Mon 6/1019:59IAD - LAS
Nonstop5h 00mUnited Airlines
Deal found 11/9£144
Fri 31/1012:00LAS - DCA
Nonstop4h 30mSouthwest
Sun 2/1119:30DCA - LAS
1 stop7h 25mSouthwest
Deal found 11/9£149

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 12 September 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 - DCA

LASDCA

Las Vegas Harry Reid Intl

Wed 29/10

05:20-16:00

1 stop7h 40m

Washington, D.C. Reagan-National

Wed 12/11

16:35-18:50

Nonstop5h 15m

£128

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Sat 15/11

06:40-17:10

1 stop7h 30m

Washington, D.C. Reagan-National

Mon 17/11

16:35-18:50

Nonstop5h 15m

£137

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Tue 11/11

06:55-16:10

1 stop6h 15m

Washington, D.C. Reagan-National

Sat 15/11

12:15-19:05

2 stops9h 50m

£139

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Fri 31/10

12:00-19:30

Nonstop4h 30m

Washington, D.C. Reagan-National

Sun 2/11

17:30-22:45

1 stop8h 15m

£149

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Tue 28/10

08:55-16:25

Nonstop4h 30m

Washington, D.C. Reagan-National

Fri 31/10

15:30-19:30

1 stop7h 00m

£159

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Wed 3/12

09:25-16:50

Nonstop4h 25m

Washington, D.C. Reagan-National

Sat 6/12

06:05-08:25

Nonstop5h 20m

£160

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Wed 15/10

23:45-08:55

1 stop6h 10m

Washington, D.C. Reagan-National

Sun 19/10

19:45-00:05

1 stop7h 20m

£166

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Mon 27/10

23:35-10:05

1 stop7h 30m

Washington, D.C. Reagan-National

Sat 8/11

15:40-20:20

1 stop7h 40m

£166

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Fri 14/11

06:00-17:13

1 stop8h 13m

Washington, D.C. Dulles Intl

Mon 17/11

17:40-23:33

1 stop8h 53m

£167

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Thu 30/10

07:25-17:13

1 stop6h 48m

Washington, D.C. Dulles Intl

Mon 10/11

17:40-23:33

1 stop8h 53m

£167

Flights are sorted by cheapest return flights first.

Deals found on 11/9

Showing 1-10 of 45 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 29 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 12 September 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 12 September 2025.

The most flights from LAS to WAS are scheduled on a Thursday (11 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (4 on average).

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 £128, Southwest can have you in Washington, D.C. from Las Vegas in 7h 40m. Las Vegas and Washington, D.C. are separated by a distance of 2082 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 Hawaiian Airlines, which is currently one of the cheapest options available, starting at £79. Southwest flights start at £80 while deals on Alaska Airlines start at £83 one-way.

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

    Consider Ethiopian Air (96%), United Airlines (89%) or Austrian Airlines (87%) 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
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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