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Cheap flights from Las Vegas to Washington, D.C. from £107

LAS — WAS
9 Oct — 16 Oct1
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 October or September, booked 34 days in advance, depart on a Monday or Tuesday and return on a Monday

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.

Wed 9/1209:25 -
Nonstop4h 20m
Mon 14/1217:35 -
Nonstop5h 25m
Deal found 9/9£213
Wed 9/1223:59 -
Nonstop4h 22m
Sat 12/1208:45 -
Nonstop5h 00m
Deal found 9/9£213
Wed 2/1221:58 -
1 stop8h 59m
Tue 8/1212:01 -
1 stop11h 47m
Deal found 9/9£218
Wed 9/1213:20 -
1 stop8h 10m
Mon 14/1219:30 -
Nonstop5h 18m
Deal found 9/9£218
Wed 9/1208:45 -
1 stop7h 30m
Sat 12/1214:35 -
Nonstop5h 20m
Deal found 9/9£221
Thu 17/1208:45 -
Nonstop4h 28m
Tue 5/115:41 -
1 stop7h 34m
Deal found 9/9£221
Wed 9/1209:52 -
1 stop10h 00m
Sat 12/1206:00 -
1 stop8h 56m
Deal found 9/9£221
Wed 14/1023:34 -
1 stop6h 11m
Tue 20/1018:26 -
1 stop8h 09m
Deal found 9/9£228
Sat 24/1006:10 -
1 stop8h 50m
Mon 2/1116:05 -
2 stops9h 00m
Deal found 9/9£229
Wed 2/1211:30 -
2 stops8h 30m
Tue 8/1211:00 -
2 stops9h 25m
Deal found 9/9£235
Thu 17/1207:15 -
1 stop8h 05m
Thu 31/1217:35 -
Nonstop5h 25m
Deal found 9/9£261
Thu 17/1218:45 -
1 stop7h 34m
Wed 30/1220:06 -
Nonstop5h 16m
Deal found 9/9£261

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

Round-trip from

£213

One-way from

£107

Popular in

November

Cheapest in

October

Average price

£215
Southwest
  • Southwest
  • 9/12-14/12
  • Nonstop
  • 9h 45m total
  • Las Vegas to Washington, D.C.
Search Deals
Southwest
  • Southwest
  • 9/12-31/12
  • Nonstop
  • 4h 20m total
  • Las Vegas to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£15 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£7 potential savings vs. average return price).
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Average for round-trip flights in September 2026
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Cheapflights Fare Finder

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

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Route

Depart

Return

Price

Cheapest return flight

Las VegasWashington, D.C.

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

LASIAD

Las Vegas Harry Reid Intl

Sat 12/12

23:59-07:21

Nonstop4h 22m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-21:00

Nonstop0h 00m

£148
Fastest return journey

Las VegasWashington, D.C.

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

LASIAD

Las Vegas Harry Reid Intl

Mon 14/12

08:35-15:55

Nonstop4h 20m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-21:00

Nonstop0h 00m

£148

Las VegasWashington, D.C.

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

LASDCA

Las Vegas Harry Reid Intl

Sat 31/10

13:05-20:40

Nonstop4h 35m

Washington, D.C. Reagan-National

Wed 31/12

00:00-21:00

Nonstop0h 00m

£150

Las VegasWashington, D.C.

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

LASIAD

Las Vegas Harry Reid Intl

Wed 11/11

07:40-15:08

Nonstop4h 28m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-21:00

Nonstop0h 00m

£150

Las VegasWashington, D.C.

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

LASIAD

Las Vegas Harry Reid Intl

Thu 1/10

23:55-07:28

Nonstop4h 33m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-21:00

Nonstop0h 00m

£154

Las VegasWashington, D.C.

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

LASIAD

Las Vegas Harry Reid Intl

Wed 3/3

10:59-23:51

1 stop9h 52m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-21:00

Nonstop0h 00m

£156

Las VegasWashington, D.C.

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

LASIAD

Las Vegas Harry Reid Intl

Wed 9/12

06:00-23:59

2 stops14h 59m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-21:00

Nonstop0h 00m

£160

Las VegasWashington, D.C.

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

LASDCA

Las Vegas Harry Reid Intl

Mon 16/11

12:50-22:43

1 stop6h 53m

Washington, D.C. Reagan-National

Wed 31/12

00:00-21:00

Nonstop0h 00m

£162

Las VegasWashington, D.C.

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

LASIAD

Las Vegas Harry Reid Intl

Sat 19/12

15:07-00:37

1 stop6h 30m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-21:00

Nonstop0h 00m

£179

Las VegasWashington, D.C.

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

LASDCA

Las Vegas Harry Reid Intl

Mon 9/11

09:05-16:25

Nonstop4h 20m

Washington, D.C. Reagan-National

Wed 31/12

00:00-21:00

Nonstop0h 00m

£187

Flights are sorted by cheapest return flights first.

Deals found on 9/9

Showing 1-10 of 40 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

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, January is the cheapest month in which you can book a flight from Las Vegas to Washington, D.C. (average of £272). Flying from Las Vegas to Washington, D.C. in March is currently the most expensive (average of £380). 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?

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.

The most flights from LAS to WAS are scheduled on a Tuesday (12 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

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

Airfare is typical for this route at the moment.
Las Vegas to Washington, D.C. flights typically cost between £184 and £279 in December.
The cheapest return price found within the last 5 days was £213 on Southwest (9 Dec–14 Dec).

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

About 14% of weekly flights between Las Vegas and Washington, D.C. have experienced delays in the past year, with the average delay time being 134 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 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 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

  • 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 6 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 £228, Southwest can have you in Washington, D.C. from Las Vegas in 6h 30m. 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 (97%), Austrian Airlines (90%) or Brussels Airlines (90%) 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 £272). Flying from Las Vegas to Washington, D.C. in March is currently the most expensive (average of £380). 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
Alexandria
Gaithersburg
Oxon Hill
Hanover
Woodbridge
Glen Burnie
Springfield

Browse thousands of different options on Cheapflights for your next trip

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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.

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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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