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Cheap flights from Las Vegas to Washington, D.C. from £78

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 31/8. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — WAS
13 Sep — 20 Sep1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Las Vegas Harry Reid Intl to Washington, D.C. are usually found in September or August, booked 34 days in advance, depart on a Monday or Tuesday and return on a Tuesday

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

Enter your travel dates to find the best prices.

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 14 August 2026.

Wed 2/900:30 -
Nonstop4h 34m
Mon 7/908:59 -
Nonstop4h 55m
Deal found 10/8£131
Tue 25/808:20 -
Nonstop4h 38m
Tue 1/912:55 -
Nonstop5h 04m
Deal found 10/8£162
Tue 11/800:46 -
Nonstop4h 34m
Thu 27/808:59 -
Nonstop4h 55m
Deal found 11/8£170
Tue 1/912:11 -
1 stop7h 02m
Wed 30/912:57 -
1 stop8h 04m
Deal found 9/8£173
Tue 25/812:10 -
1 stop6h 30m
Tue 1/916:35 -
1 stop8h 35m
Deal found 10/8£177
Tue 25/806:50 -
1 stop6h 00m
Mon 31/806:55 -
2 stops9h 30m
Deal found 9/8£178
Tue 1/908:55 -
2 stops9h 00m
Wed 30/917:40 -
1 stop7h 30m
Deal found 10/8£179
Sat 5/913:10 -
Nonstop4h 45m
Sat 12/907:00 -
Nonstop5h 10m
Deal found 12/8£180
Tue 27/1023:50 -
Nonstop4h 22m
Tue 3/1112:56 -
Nonstop5h 21m
Deal found 10/8£180
Mon 31/800:55 -
1 stop8h 55m
Wed 2/916:50 -
2 stops8h 25m
Deal found 11/8£181
Thu 24/923:55 -
Nonstop4h 33m
Mon 26/1017:40 -
Nonstop5h 18m
Deal found 9/8£185
Thu 29/1013:45 -
1 stop6h 10m
Tue 3/1117:35 -
Nonstop5h 25m
Deal found 12/8£187

Find 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 14 August 2026.

Round-trip from

£131

One-way from

£78

Popular in

November

Cheapest in

September

Average price

£211
Frontier
  • Frontier
  • 2/9-7/9
  • Nonstop
  • 9h 29m total
  • Las Vegas to Washington, D.C.
Search Deals
Southwest
  • Southwest
  • 31/8
  • 1 total stop
  • 5h 55m total
  • Las Vegas to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£16 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

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 14 August 2026.
Use the filters below to find and compare flights from Las Vegas to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Las VegasWashington, D.C.

LAS Las Vegas Harry Reid Intl - DCA Washington, D.C. Reagan-National

LASDCA

Las Vegas Harry Reid Intl

Sat 5/9

13:10-20:55

Nonstop4h 45m

Washington, D.C. Reagan-National

Sat 12/9

07:00-09:10

Nonstop5h 10m

£180

Las VegasWashington, D.C.

LAS Las Vegas Harry Reid Intl - DCA Washington, D.C. Reagan-National

LASDCA

Las Vegas Harry Reid Intl

Tue 25/8

11:00-20:10

1 stop6h 10m

Washington, D.C. Reagan-National

Tue 1/9

16:50-22:15

2 stops8h 25m

£181

Las VegasWashington, D.C.

LAS Las Vegas Harry Reid Intl - IAD Washington, D.C. Dulles Intl

LASIAD

Las Vegas Harry Reid Intl

Fri 13/11

23:50-07:12

Nonstop4h 22m

Washington, D.C. Dulles Intl

Sun 15/11

08:40-11:02

Nonstop5h 22m

£185

Las VegasWashington, D.C.

LAS Las Vegas Harry Reid Intl - IAD Washington, D.C. Dulles Intl

LASIAD

Las Vegas Harry Reid Intl

Mon 24/8

13:17-23:39

1 stop7h 22m

Washington, D.C. Dulles Intl

Mon 31/8

17:47-23:10

1 stop8h 23m

£195

Las VegasWashington, D.C.

LAS Las Vegas Harry Reid Intl - DCA Washington, D.C. Reagan-National

LASDCA

Las Vegas Harry Reid Intl

Fri 4/9

12:11-22:13

1 stop7h 02m

Washington, D.C. Reagan-National

Mon 7/9

09:30-14:44

1 stop8h 14m

£196

Las VegasWashington, D.C.

LAS Las Vegas Harry Reid Intl - DCA Washington, D.C. Reagan-National

LASDCA

Las Vegas Harry Reid Intl

Mon 26/10

23:35-08:35

1 stop6h 00m

Washington, D.C. Reagan-National

Tue 10/11

12:26-16:57

1 stop7h 31m

£199

Las VegasWashington, D.C.

LAS Las Vegas Harry Reid Intl - DCA Washington, D.C. Reagan-National

LASDCA

Las Vegas Harry Reid Intl

Sat 5/9

09:30-18:45

1 stop6h 15m

Washington, D.C. Reagan-National

Sat 12/9

06:10-10:13

1 stop7h 03m

£199

Las VegasWashington, D.C.

LAS Las Vegas Harry Reid Intl - DCA Washington, D.C. Reagan-National

LASDCA

Las Vegas Harry Reid Intl

Thu 3/9

23:55-08:55

1 stop6h 00m

Washington, D.C. Reagan-National

Mon 7/9

08:30-13:07

1 stop7h 37m

£199

Las VegasWashington, D.C.

LAS Las Vegas Harry Reid Intl - DCA Washington, D.C. Reagan-National

LASDCA

Las Vegas Harry Reid Intl

Fri 11/9

06:50-15:50

1 stop6h 00m

Washington, D.C. Reagan-National

Tue 15/9

08:00-11:15

1 stop6h 15m

£199

Las VegasWashington, D.C.

LAS Las Vegas Harry Reid Intl - DCA Washington, D.C. Reagan-National

LASDCA

Las Vegas Harry Reid Intl

Fri 30/10

23:35-08:35

1 stop6h 00m

Washington, D.C. Reagan-National

Sat 7/11

12:26-17:09

1 stop7h 43m

£199

Flights are sorted by cheapest return flights first.

Deals found on 12/8

Showing 1-10 of 43 resultsSorted by cheapest first
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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.

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

Currently, August is the cheapest month in which you can book a flight from Las Vegas to Washington, D.C. (average of £247). Flying from Las Vegas to Washington, D.C. in March is currently the most expensive (average of £382). 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 14 August 2026.

Unlike at midday, when flights are generally more expensive, you can save up to 29% on flights from Las Vegas to Washington, D.C. by exploring options for tickets in the afternoon.

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 14 August 2026.

The most flights from LAS to WAS are scheduled on a Thursday (13 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (8 on average).

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

Airfare is below average for this route at the moment.
Las Vegas to Washington, D.C. flights typically cost between £140 and £287 in September.
The cheapest return price found within the last 5 days was £131 on Frontier (2 Sept–7 Sept).

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

About 13% of weekly flights between Las Vegas and Washington, D.C. have experienced delays in the past year, with the average delay time being 132 minutes.

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

Historically, flights departing at night 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 Las Vegas to Washington, D.C. flights?

Over the past year, United Airlines have had the lowest number of delays on this route, with just 8% of flights being delayed.

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

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 53 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 10 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 £185, Southwest can have you in Washington, D.C. from Las Vegas in 4h 22m. 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 most reliable airlines from Las Vegas to Washington, D.C.?

    Consider Ethiopian Air (89%), Austrian Airlines (87%) or Brussels 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, August is the cheapest month in which you can book a flight from Las Vegas to Washington, D.C. (average of £247). Flying from Las Vegas to Washington, D.C. in March is currently the most expensive (average of £382). 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
Gaithersburg
Oxon Hill
Alexandria
Hanover
Woodbridge
Glen Burnie
Springfield

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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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