Find flights
Deals
When to book
FAQs

Cheap flights from Las Vegas to Washington, D.C. from £120

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 17/7. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — WAS
20 Jul — 27 Jul1
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 July or August, booked 44 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 20 June 2026.

Thu 13/806:45
LAS
-
DCA
1 stop5h 55m
Southwest
Wed 19/816:40
DCA
-
LAS
Nonstop5h 00m
Southwest
Deal found 16/6£207
Fri 31/700:59
LAS
-
IAD
1 stop7h 34m
United Airlines
Sun 9/820:10
IAD
-
LAS
Nonstop5h 09m
United Airlines
Deal found 15/6£207
Wed 12/812:11
LAS
-
DCA
1 stop7h 02m
United Airlines
Sun 16/808:20
DCA
-
LAS
1 stop7h 55m
United Airlines
Deal found 17/6£210
Wed 8/708:55
LAS
-
DCA
1 stop7h 00m
Southwest
Tue 14/716:55
DCA
-
LAS
1 stop6h 35m
Southwest
Deal found 16/6£214
Thu 13/823:57
LAS
-
IAD
Nonstop4h 33m
United Airlines
Wed 19/809:00
IAD
-
LAS
Nonstop5h 04m
United Airlines
Deal found 19/6£217
Wed 12/808:20
LAS
-
IAD
Nonstop4h 38m
United Airlines
Sat 15/818:00
IAD
-
LAS
Nonstop5h 08m
United Airlines
Deal found 16/6£219
Thu 23/723:30
LAS
-
IAD
1 stop6h 54m
United Airlines
Sat 1/820:10
IAD
-
LAS
Nonstop5h 09m
United Airlines
Deal found 16/6£219
Wed 15/706:35
LAS
-
DCA
1 stop6h 35m
Southwest
Wed 22/718:40
DCA
-
LAS
1 stop7h 05m
Southwest
Deal found 17/6£222
Thu 9/713:36
LAS
-
IAD
1 stop8h 09m
United Airlines
Mon 13/720:10
IAD
-
LAS
Nonstop5h 09m
United Airlines
Deal found 18/6£222
Thu 30/700:46
LAS
-
IAD
Nonstop4h 34m
Multiple Airlines
Fri 7/812:00
IAD
-
LAS
2 stops27h 04m
Multiple Airlines
Deal found 16/6£223
Wed 15/706:35
LAS
-
DCA
1 stop6h 35m
Southwest
Tue 28/706:05
DCA
-
LAS
2 stops8h 00m
Southwest
Deal found 17/6£225
Wed 22/711:44
LAS
-
DCA
1 stop9h 12m
Delta
Tue 4/817:00
DCA
-
LAS
1 stop8h 15m
Delta
Deal found 20/6£228

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 20 June 2026.

Round-trip from

£207

One-way from

£120

Popular in

March

Cheapest in

July

Average price

£285

Good one-way deal

£217 or less
Southwest
  • Southwest
  • 13/8-19/8
  • 1 total stop
  • 10h 55m total
  • Las Vegas to Washington, D.C.
Search Deals
Frontier
  • Frontier
  • 17/7
  • Nonstop
  • 4h 34m total
  • Las Vegas to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£35 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a one-way flight from Las Vegas Harry Reid Intl to Washington, D.C. (WAS).
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 20 June 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
Fastest return journey

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Thu 13/8

23:57-07:30

Nonstop4h 33m

Washington, D.C. Dulles Intl

Wed 19/8

09:00-11:04

Nonstop5h 04m

£217

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Thu 13/8

06:45-15:40

1 stop5h 55m

Washington, D.C. Reagan-National

Wed 19/8

16:50-21:40

2 stops7h 50m

£218

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Tue 28/7

09:35-22:59

1 stop10h 24m

Washington, D.C. Reagan-National

Tue 4/8

17:00-22:15

1 stop8h 15m

£233

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Tue 7/7

06:19-18:09

1 stop8h 50m

Washington, D.C. Reagan-National

Fri 10/7

17:00-00:39

1 stop10h 39m

£233

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Wed 29/7

05:50-16:34

1 stop7h 44m

Washington, D.C. Reagan-National

Tue 4/8

17:00-22:15

1 stop8h 15m

£233

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Fri 14/8

05:50-16:38

1 stop7h 48m

Washington, D.C. Dulles Intl

Sun 16/8

06:00-11:01

1 stop8h 01m

£233

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Sat 18/7

14:25-00:45

1 stop7h 20m

Washington, D.C. Dulles Intl

Sat 25/7

20:10-22:19

Nonstop5h 09m

£234

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Mon 27/7

22:55-08:31

1 stop6h 36m

Washington, D.C. Reagan-National

Wed 5/8

17:00-22:15

1 stop8h 15m

£263

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Mon 27/7

23:10-10:23

1 stop8h 13m

Washington, D.C. Dulles Intl

Tue 4/8

15:03-21:13

1 stop9h 10m

£263

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Wed 30/9

06:55-16:00

1 stop6h 05m

Washington, D.C. Reagan-National

Wed 7/10

07:30-13:10

2 stops8h 40m

£265

Flights are sorted by cheapest return flights first.

Deals found on 19/6

Showing 1-10 of 46 resultsSorted by cheapest first
1
2
3
...
5

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, October is the cheapest month in which you can book a flight from Las Vegas to Washington, D.C. (average of £44). Flying from Las Vegas to Washington, D.C. in May is currently the most expensive (average of £140). 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 20 June 2026.

Unlike at midday, when flights are generally more expensive, you can save up to 31% on flights from Las Vegas to Washington, D.C. by exploring options for tickets in the morning.

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 20 June 2026.

The most flights from LAS to WAS are scheduled on a Monday (10 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

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

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 131 minutes.

What is the most punctual flight time for Las Vegas to Washington, D.C. 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 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 9% 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 49 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 7 daily outbound flights to Washington, D.C. from 1 airline.

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

    For as low as £217, Southwest can have you in Washington, D.C. from Las Vegas in 4h 33m. 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 is the cheapest airline to fly from Las Vegas to Washington, D.C. round-trip?

    According to our current data, United Airlines (£335), offers the cheapest pricing from Las Vegas to Washington, D.C..

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

    Consider Ethiopian Air (92%), United Airlines (91%) or Austrian Airlines (89%) 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 £225, our data indicates the cheapest price to be £217. The most popular route (Las Vegas Harry Reid Intl - Washington, D.C. Dulles Intl), is priced around £194.

  • 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, October is the cheapest month in which you can book a flight from Las Vegas to Washington, D.C. (average of £44). Flying from Las Vegas to Washington, D.C. in May is currently the most expensive (average of £140). 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
Gaithersburg
Woodbridge
Alexandria

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Las Vegas to Washington, D.C.

Discover the top airline that operate flights from Las Vegas to Washington, D.C.. 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 858,174 searches. Data last updated 20 June 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£335Average£345FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Las Vegas to Washington, D.C.?

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.