What are the cheapest airlines flying from Las Vegas to Washington, D.C. round-trip?

Flying on Frontier is currently your cheapest option to Washington, D.C., with prices starting at $113. Additional round-trip tickets that might be worth considering are offered by Spirit Airlines and Southwest, with the lowest prices starting at $130 and $159, respectively. Users have found that Frontier is 66% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from Las Vegas to Washington, D.C. one-way?

For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $54. Users have also found prices from $63 and $80 on Frontier and Southwest, respectively.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What are the most popular routes from Las Vegas to Washington, D.C.?

While some choose either Las Vegas Harry Reid Intl - Baltimore/Washington or Las Vegas Harry Reid Intl - Washington, D.C. Reagan-National, Las Vegas Harry Reid Intl - Washington, D.C. Dulles Intl is the most popular route from Las Vegas to Washington, D.C..

What are the cheapest flights from Las Vegas to Washington, D.C.?

Looking at all options, your cheapest flight can be booked for $78. While the most popular route (Las Vegas Harry Reid Intl - Washington, D.C. Dulles Intl) can be booked for $156 on average our data indicates $877 when flying from Las Vegas to Washington, D.C..

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

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Las Vegas to Washington, D.C. on time: Austrian Airlines (85%), Brussels Airlines (85%), United Airlines (85%).

What are the most popular airlines that fly from Las Vegas to Washington, D.C.?

American Airlines, Delta and Frontier are the most popular airlines when flying from Las Vegas to Washington, D.C..

What is the cheapest day to fly round-trip from Las Vegas to Washington, D.C.?

Wednesday is generally a great day to depart. Flying on this day could help you save up to 62%.

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

Travelers have found it’s best to book a flight 45 days in advance to save up to 113% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 45 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Las Vegas to Washington, D.C. 1-2 weeks in advance for as low as $299, or $476 for flights within the next 24 hours.

What is the cheapest month to fly from Las Vegas to Washington, D.C.?

Flights from Las Vegas to Washington, D.C. lean towards being more expensive in December. Prices are generally better when you fly from Las Vegas to Washington, D.C. in August, with the cheapest ticket starting at $158.

What airport do you fly from for flights from Las Vegas to Washington, D.C.?

Las Vegas Harry Reid Intl (LAS) is the airport you will fly out of if you book a flight from Las Vegas to Washington, D.C.. You should not have trouble finding flights to Washington, D.C. from Harry Reid Intl; the airport handles an average of 6 outbound flights to Washington, D.C. per day. You should also have plenty of airline options to choose from since 6 airlines have flights from the Las Vegas airport to Washington, D.C.. It is only a 6.2 mi journey to Harry Reid Intl (LAS) from Las Vegas’s city center.

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 vacation 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.

$54+ Flights from Las Vegas to Washington, D.C.

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2. Select your favorite providers

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Cheapflights Tip: The best prices from Las Vegas Harry Reid Intl to Washington, D.C. are usually found in August or May, booked 74 days in advance, depart on a Thursday or Wednesday and return on a Tuesday

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

Round-trip from	$113 (CheapOair)
One-way from	$54 (FlightHub)
Popular in	December
Cheapest in	August
Average price	$335
Good round-trip deal	$197 or less
Good one-way deal	$127 or less

From Las Vegas Harry Reid Intl to Washington, D.C. (WAS)

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One-way flight from Las Vegas Harry Reid Intl to Washington, D.C. (WAS)

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Highest demand for flights based on searches. 10% potential increase in price ($37 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Price to beat on a round-trip flight from Las Vegas Harry Reid Intl to Washington, D.C. (WAS).

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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 July 1, 2025.

Fri 9/197:00 amLAS - BWI

1 stop8h 05mFrontier

Thu 9/2511:43 amBWI - LAS

1 stop12h 40mFrontier

Deal found 6/30

$113

Tue 7/296:59 pmLAS - BWI

1 stop7h 34mMultiple Airlines

Mon 8/117:15 amBWI - LAS

1 stop7h 38mMultiple Airlines

Deal found 7/1

$123

Sat 10/189:42 amLAS - BWI

1 stop8h 20mSpirit Airlines

Mon 10/201:37 pmBWI - LAS

1 stop11h 16mSpirit Airlines

Deal found 6/29

$129

Wed 8/139:15 amLAS - DCA

Nonstop4h 35mSouthwest

Sun 8/174:55 pmDCA - LAS

Nonstop5h 00mSouthwest

Deal found 6/30

$159

Fri 8/2910:45 pmLAS - IAD

Nonstop4h 35mUnited Airlines

Sun 8/3112:35 pmIAD - LAS

Nonstop5h 00mUnited Airlines

Deal found 6/30

$159

Sat 9/612:27 pmLAS - DCA

Nonstop4h 48mAmerican Airlines

Tue 9/99:30 amDCA - LAS

Nonstop5h 07mAmerican Airlines

Deal found 7/1

$160

Fri 7/1811:00 pmLAS - IAD

Nonstop4h 34mFrontier

Mon 7/217:30 amIAD - LAS

Nonstop4h 59mFrontier

Deal found 6/30

$160

Fri 9/193:10 pmLAS - DCA

1 stop27h 49mFrontier

Wed 9/247:00 amDCA - LAS

1 stop7h 08mFrontier

Deal found 6/30

$164

Fri 9/56:10 amLAS - DCA

1 stop8h 49mHawaiian Airlines

Mon 9/89:59 amDCA - LAS

1 stop9h 35mHawaiian Airlines

Deal found 7/1

$200

Wed 8/2710:17 amLAS - DCA

1 stop8h 42mAlaska Airlines

Tue 9/29:59 amDCA - LAS

1 stop9h 35mAlaska Airlines

Deal found 6/30

$201

Wed 8/138:30 amLAS - IAD

1 stop7h 49mAlaska Airlines

Sun 8/175:25 pmIAD - LAS

1 stop8h 34mAlaska Airlines

Deal found 6/30

$201

Thu 8/77:00 amLAS - IAD

1 stop8h 59mMultiple Airlines

Sun 8/105:59 pmIAD - LAS

1 stop18h 13mMultiple Airlines

Deal found 7/1

$202

Best flights from Las Vegas to Washington, D.C.
Discover carefully curated flight deals from Las Vegas to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 1, 2025.

Fri 9/197:00 amLAS - BWI

1 stop8h 05mFrontier

Thu 9/2511:43 amBWI - LAS

1 stop12h 40mFrontier

Deal found 6/30

$113

Tue 7/296:59 pmLAS - BWI

1 stop7h 34mMultiple Airlines

Mon 8/117:15 amBWI - LAS

1 stop7h 38mMultiple Airlines

Deal found 7/1

$123

Tue 9/95:47 pmLAS - BWI

1 stop10h 09mSpirit Airlines

Tue 9/165:35 amBWI - LAS

1 stop18h 52mSpirit Airlines

Deal found 7/1

$130

Wed 8/139:15 amLAS - DCA

Nonstop4h 35mSouthwest

Sun 8/174:55 pmDCA - LAS

Nonstop5h 00mSouthwest

Deal found 6/30

$159

Fri 8/2910:45 pmLAS - IAD

Nonstop4h 35mUnited Airlines

Sun 8/3112:35 pmIAD - LAS

Nonstop5h 00mUnited Airlines

Deal found 6/30

$159

Sat 9/612:27 pmLAS - DCA

Nonstop4h 48mAmerican Airlines

Tue 9/99:30 amDCA - LAS

Nonstop5h 07mAmerican Airlines

Deal found 7/1

$160

Fri 9/56:10 amLAS - DCA

1 stop8h 49mHawaiian Airlines

Mon 9/89:59 amDCA - LAS

1 stop9h 35mHawaiian Airlines

Deal found 7/1

$200

Wed 8/2710:17 amLAS - DCA

1 stop8h 42mAlaska Airlines

Tue 9/29:59 amDCA - LAS

1 stop9h 35mAlaska Airlines

Deal found 6/30

$201

Tue 7/1512:34 amLAS - DCA

1 stop7h 26mDelta

Sat 9/68:00 amDCA - LAS

1 stop7h 09mDelta

Deal found 6/30

$257

Thu 8/219:25 pmLAS - DCA

1 stop7h 38mJetBlue

Tue 9/25:10 pmDCA - LAS

1 stop8h 28mJetBlue

Deal found 6/30

$275

Fri 7/1811:00 pmLAS - IAD

Nonstop4h 34mFrontier

Mon 7/217:30 amIAD - LAS

Nonstop4h 59mFrontier

Deal found 6/30

$160

Fri 9/193:10 pmLAS - DCA

1 stop27h 49mFrontier

Wed 9/247:00 amDCA - LAS

1 stop7h 08mFrontier

Deal found 6/30

$164

Last-minute flights from Las Vegas to Washington, D.C.
Discover last-minute flight deals from Las Vegas to Washington, D.C.. Data last updated July 1, 2025 and is based on user searches.

Sun 7/612:59 amLAS - BWI

1 stop12h 32mFrontier

Thu 7/107:20 amBWI - LAS

1 stop7h 33mFrontier

Deal found 6/29

$213

Wed 7/912:59 amLAS - DCA

1 stop8h 05mFrontier

Fri 7/117:00 amDCA - LAS

1 stop10h 40mFrontier

Deal found 6/30

$217

Wed 7/912:02 pmLAS - DCA

Nonstop4h 52mAmerican Airlines

Wed 7/166:53 amDCA - LAS

1 stop8h 03mAmerican Airlines

Deal found 6/30

$343

Thu 7/1012:40 amLAS - IAD

1 stop7h 14mDelta

Mon 7/217:36 pmIAD - LAS

1 stop7h 23mDelta

Deal found 6/30

$303

Thu 7/1012:59 amLAS - DCA

1 stop8h 05mMultiple Airlines

Sun 7/135:43 pmDCA - LAS

1 stop9h 16mMultiple Airlines

Deal found 7/1

$335

Fri 7/1111:00 pmLAS - IAD

Nonstop4h 34mFrontier

Mon 7/147:30 amIAD - LAS

Nonstop4h 59mFrontier

Deal found 6/30

$159

Fri 7/1110:48 pmLAS - BWI

Nonstop4h 17mSpirit Airlines

Mon 7/146:15 pmBWI - LAS

Nonstop5h 14mSpirit Airlines

Deal found 6/30

$200

Fri 7/1110:48 pmLAS - BWI

Nonstop4h 17mMultiple Airlines

Sun 7/137:38 pmBWI - LAS

1 stop16h 42mMultiple Airlines

Deal found 6/30

$243

Fri 7/116:00 amLAS - IAD

1 stop7h 25mMultiple Airlines

Mon 7/212:44 pmIAD - LAS

2 stops45h 28mMultiple Airlines

Deal found 6/30

$257

Fri 7/111:11 pmLAS - DCA

1 stop7h 31mDelta

Mon 7/147:35 pmDCA - LAS

1 stop7h 24mDelta

Deal found 6/30

$303

Fri 7/1110:35 amLAS - DCA

1 stop8h 07mHawaiian Airlines

Sun 7/135:43 pmDCA - LAS

1 stop9h 16mHawaiian Airlines

Deal found 6/30

$340

Fri 7/1110:35 amLAS - DCA

1 stop8h 07mAlaska Airlines

Sun 7/135:43 pmDCA - LAS

1 stop9h 16mAlaska Airlines

Deal found 6/30

$348

One-way flights from Las Vegas to Washington, D.C.
Search for one-way flight options from Las Vegas to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated July 1, 2025.

Wed 9/2412:01 pmLAS - BWI

1 stop15h 55mSpirit Airlines

Deal found 6/30

$54

Fri 9/57:00 amLAS - BWI

1 stop8h 05mFrontier

Deal found 6/30

$63

Thu 8/149:20 amLAS - DCA

Nonstop4h 35mSouthwest

Deal found 7/1

$80

Tue 8/58:30 amLAS - IAD

Nonstop4h 37mUnited Airlines

Deal found 6/30

$80

Wed 8/1311:44 amLAS - DCA

Nonstop4h 46mAmerican Airlines

Deal found 7/1

$81

Thu 8/217:42 pmLAS - IAD

1 stop10h 45mFrontier

Deal found 6/30

$81

Tue 8/1912:59 amLAS - DCA

1 stop8h 12mFrontier

Deal found 7/1

$88

Thu 8/1410:17 amLAS - DCA

1 stop7h 42mHawaiian Airlines

Deal found 7/1

$94

Thu 8/148:30 amLAS - IAD

1 stop7h 49mHawaiian Airlines

Deal found 7/1

$94

Mon 7/2112:59 amLAS - BWI

1 stop9h 58mMultiple Airlines

Deal found 7/1

$99

Thu 7/247:00 amLAS - IAD

1 stop8h 59mAlaska Airlines

Deal found 7/1

$100

Fri 8/299:52 pmLAS - DCA

1 stop17h 07mAlaska Airlines

Deal found 6/30

$106

Cheapflights Fare Finder

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

Las VegasBaltimore

LAS - BWI

LASBWI

Las Vegas Harry Reid Intl

Fri 9/19

7:00 am-6:05 pm

1 stop8h 05m

Baltimore/Washington

Thu 9/25

11:43 am-9:23 pm

1 stop12h 40m

$113

Las VegasBaltimore

LAS - BWI

LASBWI

Las Vegas Harry Reid Intl

Tue 7/29

6:59 pm-5:33 am

1 stop7h 34m

Baltimore/Washington

Mon 8/11

7:15 am-11:53 am

1 stop7h 38m

$123

Las VegasBaltimore

LAS - BWI

LASBWI

Las Vegas Harry Reid Intl

Sat 10/18

9:42 am-9:02 pm

1 stop8h 20m

Baltimore/Washington

Mon 10/20

1:37 pm-9:53 pm

1 stop11h 16m

$129

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Wed 8/13

9:15 am-4:50 pm

Nonstop4h 35m

Washington, D.C. Reagan-National

Sun 8/17

4:55 pm-6:55 pm

Nonstop5h 00m

$159

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Fri 8/29

10:45 pm-6:20 am

Nonstop4h 35m

Washington, D.C. Dulles Intl

Sun 8/31

12:35 pm-2:35 pm

Nonstop5h 00m

$159

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Sat 9/6

12:27 pm-8:15 pm

Nonstop4h 48m

Washington, D.C. Reagan-National

Tue 9/9

9:30 am-11:37 am

Nonstop5h 07m

$160

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Fri 7/18

11:00 pm-6:34 am

Nonstop4h 34m

Washington, D.C. Dulles Intl

Mon 7/21

7:30 am-9:29 am

Nonstop4h 59m

$160

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Fri 9/19

3:10 pm-9:59 pm

1 stop27h 49m

Washington, D.C. Reagan-National

Wed 9/24

7:00 am-11:08 am

1 stop7h 08m

$164

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Fri 9/5

6:10 am-5:59 pm

1 stop8h 49m

Washington, D.C. Reagan-National

Mon 9/8

9:59 am-4:34 pm

1 stop9h 35m

$200

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Wed 8/27

10:17 am-9:59 pm

1 stop8h 42m

Washington, D.C. Reagan-National

Tue 9/2

9:59 am-4:34 pm

1 stop9h 35m

$201

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 31 results

The best insider tips for Las Vegas to Washington, D.C. flights

Cheapflights partnered with top experts to bring you the best recommendations for your Las Vegas to Washington, D.C. trip

Airports

LAS

LAS offers a self-service TSA screening trial, reducing interaction with agents. Follow video instructions for a smoother security experience.

IAD

The Washington Metro Silver Line reaches IAD in under 40 minutes, offering a cost-effective city connection.

Our travel experts

Ramsey Qubein

Expert on IAD and LAS

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 round-trip 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.?

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 74 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, August is the cheapest month in which you can book a flight from Las Vegas to Washington, D.C. (average of $309). Flying from Las Vegas to Washington, D.C. in July is currently the most expensive (average of $345). 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?

It’s optimal to fly from Las Vegas to Washington, D.C. in the evening. By choosing this option you can save up to 25% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Las Vegas to Washington, D.C.?

Travelers seeking maximum savings on their Las Vegas to Washington, D.C. flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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

The most flights from LAS to WAS are scheduled on a Monday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

Reviews of airlines servicing Washington, D.C.

Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta from Las Vegas to Washington, D.C. to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Southwest

8.0

Very good

4,273 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Delta

8.0

Very good

7,973 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Hawaiian Airlines

7.8

Good

2,539 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

United Airlines

7.4

Good

8,858 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

What airport do you fly from for flights from Las Vegas to Washington, D.C.?
Las Vegas Harry Reid Intl (LAS) is the airport you will fly out of if you book a flight from Las Vegas to Washington, D.C.. You should not have trouble finding flights to Washington, D.C. from Harry Reid Intl; the airport handles an average of 6 outbound flights to Washington, D.C. per day. You should also have plenty of airline options to choose from since 6 airlines have flights from the Las Vegas airport to Washington, D.C.. It is only a 6.2 mi journey to Harry Reid Intl (LAS) from Las Vegas’s city center.
What are the cheapest airlines flying from Las Vegas to Washington, D.C. round-trip?
Flying on Frontier is currently your cheapest option to Washington, D.C., with prices starting at $113. Additional round-trip tickets that might be worth considering are offered by Spirit Airlines and Southwest, with the lowest prices starting at $130 and $159, respectively. Users have found that Frontier is 66% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Las Vegas to Washington, D.C. one-way?
For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $54. Users have also found prices from $63 and $80 on Frontier and Southwest, respectively.
What are the most popular routes from Las Vegas to Washington, D.C.?
While some choose either Las Vegas Harry Reid Intl - Baltimore/Washington or Las Vegas Harry Reid Intl - Washington, D.C. Reagan-National, Las Vegas Harry Reid Intl - Washington, D.C. Dulles Intl is the most popular route from Las Vegas to Washington, D.C..
What are the most reliable airlines from Las Vegas to Washington, D.C.?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Las Vegas to Washington, D.C. on time: Austrian Airlines (85%), Brussels Airlines (85%), United Airlines (85%).
What are the cheapest flights from Las Vegas to Washington, D.C.?
Looking at all options, your cheapest flight can be booked for $78. While the most popular route (Las Vegas Harry Reid Intl - Washington, D.C. Dulles Intl) can be booked for $156 on average our data indicates $877 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 vacation 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 $309). Flying from Las Vegas to Washington, D.C. in July is currently the most expensive (average of $345). 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

Arlington

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Tysons

Silver Spring

Fredericksburg

Linthicum Heights

Gaithersburg

Fairfax

Easton

Towson

Waldorf

Laurel

Falls Church

Rockville

Springfield

National Harbor

Manassas

Dundalk

Bowie

Browse thousands of different options on Cheapflights for your next trip

Top 6 airlines flying from Las Vegas to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$93	Average$235	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$114	Average$186	FlexibilityNo cancel fee	On-time65%
United Airlines	Cheapest$217	Average$419	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$252	Average$453	FlexibilityNo cancel fee	On-time63%
Delta	Cheapest$258	Average$373	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$270	Average$477	FlexibilityNo cancel fee	On-time71%

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$54+ Cheap flights from Las Vegas (LAS) to Washington, D.C. (WAS)

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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Las Vegas to Washington, D.C. with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Las Vegas Harry Reid Intl to Washington, D.C. are usually found in August or May, booked 74 days in advance, depart on a Thursday or Wednesday and return on a Tuesday

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

Round-trip from

One-way from

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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 July 1, 2025.

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 July 1, 2025.

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The best insider tips for Las Vegas to Washington, D.C. flights

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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.

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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 round-trip flight from Las Vegas to Washington, D.C.. Price data was last updated on June 27, 2025.

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

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 July 1, 2025.

What is the cheapest day to fly from Las Vegas to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from Las Vegas to Washington, D.C.. Price data was last updated on June 29, 2025.

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

Reviews of airlines servicing Washington, D.C.

Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta from Las Vegas to Washington, D.C. to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.?

What are the cheapest airlines flying from Las Vegas to Washington, D.C. round-trip?

What are the cheapest airlines to fly from Las Vegas to Washington, D.C. one-way?

What are the most popular routes from Las Vegas to Washington, D.C.?

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

What are the cheapest flights from Las Vegas to Washington, D.C.?

Can I find deals for flights from Las Vegas to Washington, D.C. that include hotel bookings?

How can I 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.?

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

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Alternative routes for Las Vegas to Washington, D.C.

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Top 6 airlines flying from Las Vegas to Washington, D.C.

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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 July 1, 2025.