Cheap flights from Las Vegas to Washington, D.C. from $126

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Las Vegas to Washington, D.C. departing on 2/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Frontier Logo
6:00 am - 9:59 pm
LAS
-
DCA
12h 59m
1 stop
Frontier Logo
1:00 pm - 11:40 pm
DCA
-
LAS
13h 40m
1 stop
$221Frontier
Wed, Mar 25 - Tue, Mar 31
Frontier Logo
4:31 pm - 1:15 pm
LAS
-
DCA
17h 44m
2 stops
Frontier Logo
6:00 pm - 11:44 pm
DCA
-
LAS
8h 44m
1 stop
$222Frontier
Sat, Feb 21 - Sat, Feb 28
Frontier Logo
6:00 pm - 4:59 pm
LAS
-
DCA
19h 59m
2 stops
Frontier Logo
6:00 pm - 8:41 am
DCA
-
LAS
17h 41m
1 stop
$226Frontier
Fri, Feb 20 - Fri, Feb 27
Frontier Logo
4:31 pm - 1:15 pm
LAS
-
DCA
17h 44m
2 stops
Frontier Logo
6:00 pm - 11:44 pm
DCA
-
LAS
8h 44m
1 stop
$228Frontier
Sat, Feb 21 - Sat, Feb 28
Frontier Logo
5:29 pm - 1:15 pm
LAS
-
DCA
16h 46m
1 stop
Frontier Logo
8:00 am - 11:44 pm
DCA
-
LAS
18h 44m
1 stop
$230Frontier
Tue, Feb 24 - Sun, Mar 1
Frontier Logo
5:30 am - 4:59 pm
LAS
-
DCA
8h 29m
1 stop
Frontier Logo
6:00 pm - 8:41 am
DCA
-
LAS
17h 41m
1 stop
$231Frontier
Thu, Feb 19 - Fri, Feb 27
Frontier Logo
6:00 am - 4:59 pm
LAS
-
DCA
7h 59m
1 stop
Frontier Logo
6:00 pm - 7:16 am
DCA
-
LAS
16h 16m
1 stop
$234Frontier
Wed, Mar 11 - Sun, Mar 15
Frontier Logo
12:59 am - 1:15 pm
LAS
-
DCA
9h 16m
1 stop
Frontier Logo
6:00 pm - 11:40 pm
DCA
-
LAS
8h 40m
1 stop
$239Frontier
Sat, Feb 28 - Sun, Mar 8
Frontier Logo
6:00 am - 9:59 pm
LAS
-
DCA
12h 59m
1 stop
Frontier Logo
8:00 am - 8:15 pm
DCA
-
LAS
15h 15m
1 stop
$240Frontier
Tue, Mar 17 - Sat, Mar 21
Frontier Logo
12:59 am - 1:02 pm
LAS
-
DCA
9h 03m
1 stop
Frontier Logo
8:00 am - 11:24 pm
DCA
-
LAS
18h 24m
2 stops
$249Frontier
Wed, Mar 18 - Mon, Mar 23

Frontier flights from Las Vegas to Washington, D.C. Reagan-National Airport

Our best Frontier deals on Las Vegas to Washington, D.C. Reagan-National Airport flight tickets
Frontier
Mar 25
LAS6:00 amLas Vegas Harry Reid Intl
12h 59m
1 stop
DCA9:59 pmWashington, D.C. Reagan-National
Mar 31
DCA1:00 pmWashington, D.C. Reagan-National
13h 40m
1 stop
LAS11:40 pmLas Vegas Harry Reid Intl
$221
Frontier
Feb 21
LAS4:31 pmLas Vegas Harry Reid Intl
17h 44m
2 stops
DCA1:15 pmWashington, D.C. Reagan-National
Feb 28
DCA6:00 pmWashington, D.C. Reagan-National
8h 44m
1 stop
LAS11:44 pmLas Vegas Harry Reid Intl
$222
Frontier
Feb 20
LAS6:00 pmLas Vegas Harry Reid Intl
19h 59m
2 stops
DCA4:59 pmWashington, D.C. Reagan-National
Feb 27
DCA6:00 pmWashington, D.C. Reagan-National
17h 41m
1 stop
LAS8:41 amLas Vegas Harry Reid Intl
$226

Southwest flights from Las Vegas to Washington, D.C. Reagan-National Airport

Our best Southwest deals on Las Vegas to Washington, D.C. Reagan-National Airport flight tickets
Southwest
Feb 21
LAS8:45 amLas Vegas Harry Reid Intl
6h 15m
1 stop
DCA6:00 pmWashington, D.C. Reagan-National
Feb 28
DCA4:00 pmWashington, D.C. Reagan-National
5h 25m
LAS6:25 pmLas Vegas Harry Reid Intl
$296
Southwest
Feb 24
LAS11:40 pmLas Vegas Harry Reid Intl
7h 40m
1 stop
DCA10:20 amWashington, D.C. Reagan-National
Feb 28
DCA4:00 pmWashington, D.C. Reagan-National
5h 25m
LAS6:25 pmLas Vegas Harry Reid Intl
$298
Southwest
Feb 13
LAS9:20 amLas Vegas Harry Reid Intl
4h 30m
DCA4:50 pmWashington, D.C. Reagan-National
Feb 14
DCA3:40 pmWashington, D.C. Reagan-National
7h 30m
1 stop
LAS8:10 pmLas Vegas Harry Reid Intl
$583

momondo Fare Finder

 
Customize your flight search to find flights from Las Vegas to Washington, D.C. Reagan-National Airport 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, momondo users made 832,500 searches. Data last updated February 2, 2026.
Use the filters below to find and compare flights from Las Vegas to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Wed 3/25

6:00 am-9:59 pm

1 stop12h 59m

Washington, D.C. Reagan-National

Tue 3/31

1:00 pm-11:40 pm

1 stop13h 40m

$221

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Sat 2/21

4:31 pm-1:15 pm

2 stops17h 44m

Washington, D.C. Reagan-National

Sat 2/28

6:00 pm-11:44 pm

1 stop8h 44m

$222

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Fri 2/20

6:00 pm-4:59 pm

2 stops19h 59m

Washington, D.C. Reagan-National

Fri 2/27

6:00 pm-8:41 am

1 stop17h 41m

$226

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Sat 2/21

4:31 pm-1:15 pm

2 stops17h 44m

Washington, D.C. Reagan-National

Sat 2/28

6:00 pm-11:44 pm

1 stop8h 44m

$228

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Tue 2/24

5:29 pm-1:15 pm

1 stop16h 46m

Washington, D.C. Reagan-National

Sun 3/1

8:00 am-11:44 pm

1 stop18h 44m

$230

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Thu 2/19

5:30 am-4:59 pm

1 stop8h 29m

Washington, D.C. Reagan-National

Fri 2/27

6:00 pm-8:41 am

1 stop17h 41m

$231

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Wed 3/11

6:00 am-4:59 pm

1 stop7h 59m

Washington, D.C. Reagan-National

Sun 3/15

6:00 pm-7:16 am

1 stop16h 16m

$234

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Sat 2/28

12:59 am-1:15 pm

1 stop9h 16m

Washington, D.C. Reagan-National

Sun 3/8

6:00 pm-11:40 pm

1 stop8h 40m

$239

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Tue 3/17

6:00 am-9:59 pm

1 stop12h 59m

Washington, D.C. Reagan-National

Sat 3/21

8:00 am-8:15 pm

1 stop15h 15m

$240

Las VegasWashington, D.C.

LAS - DCA

LASDCA

Las Vegas Harry Reid Intl

Wed 3/18

12:59 am-1:02 pm

1 stop9h 03m

Washington, D.C. Reagan-National

Mon 3/23

8:00 am-11:24 pm

2 stops18h 24m

$249

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Las Vegas to Washington, D.C. Reagan-National Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Washington, D.C. Reagan-National Airport?

The month of December is, on average, the cheapest month to fly to Washington, D.C. Reagan-National Airport from Las Vegas, with most prices found around $257. If you aren’t able to travel to Washington, D.C. Reagan-National Airport during the month of December, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $266.

What is the cheapest day to depart on your flight to Washington, D.C. Reagan-National Airport?

The cheapest day to depart from Las Vegas to Washington, D.C. Reagan-National Airport is on a Saturday. Travelers who choose to depart for Washington, D.C. Reagan-National Airport on a Saturday will often find tickets for as low as $359. Flights from Las Vegas to Washington, D.C. Reagan-National Airport on a Sunday will generally be more expensive and average around $610. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Washington, D.C. Reagan-National Airport?

Our data shows that the cheapest Las Vegas to Washington, D.C. Reagan-National Airport flights are usually those with departure times at noon. Our users have found flights to Washington, D.C. Reagan-National Airport at noon for as low as $457. In contrast, the most expensive time of day to depart to Washington, D.C. Reagan-National Airport is in the morning when prices are around $466.

What is the cheapest Las Vegas Harry Reid Intl to Washington, D.C. Reagan-National flight route?

Fly from Las Vegas Harry Reid Intl to Washington, D.C. Reagan-National for the best Las Vegas Harry Reid Intl - Washington, D.C. Reagan-National flight prices

How far in advance should I book a flight to Washington, D.C. Reagan-National Airport?

You are more likely to see cheaper flights to Washington, D.C. Reagan-National Airport from Las Vegas when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Reagan-National Airport for around $359 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Reagan-National Airport from Las Vegas for as low as $302 on momondo.

What cabin class options are available on Las Vegas Harry Reid Intl to Washington, D.C. Reagan-National flights?

There are 3 cabin classes available to choose from on Las Vegas Harry Reid Intl to Washington, D.C. Reagan-National flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Las Vegas to Washington, D.C. Reagan-National Airport flights?

You could potentially save up to 9% on your flight if you consider stops on a Las Vegas to Washington, D.C. Reagan-National Airport flight.

How have Las Vegas to Washington, D.C. Reagan-National Airport flight prices changed over time?

As of February 2026, prices for Las Vegas to Washington, D.C. Reagan-National Airport flights are approximately 42% more expensive when compared to flights at the same time last year.

When to book flights from Las Vegas to Washington, D.C. Reagan-National Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Las Vegas to Washington, D.C. Reagan-National Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Las Vegas to Washington, D.C. Reagan-National Airport (LAS to DCA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Las Vegas to Washington, D.C. Reagan-National Airport

Best Price Found

$270

Fastest flight time

4h 30m

Direct flights

Tue, Wed, Thu, Fri, Sat and Sun
The best one-way flight to Washington, D.C. Reagan-National Airport from Las Vegas in the past 72 hours is $270. The best round-trip flight deal from Las Vegas to Washington, D.C. Reagan-National Airport found on momondo in the last 72 hours is $501.
The fastest flight from Las Vegas to Washington, D.C. Reagan-National Airport takes 4h 30m
Direct flights go from Las Vegas to Washington, D.C. Reagan-National Airport on Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
  • How far is Las Vegas Harry Reid Intl to Washington, D.C. Reagan-National by plane?

    The straight-line distance from Las Vegas Harry Reid Intl to Washington, D.C. Reagan-National is 2079.7 mi. In terms of flight time, this usually takes a little over 4h 30m.

  • When did momondo last update prices for flights from Las Vegas Harry Reid Intl Airport to Washington, D.C. Reagan-National Airport?

    Prices for flights from Las Vegas Harry Reid Intl Airport to Washington, D.C. Reagan-National Airport were last updated today.

  • How many operators does momondo search for flights from Las Vegas Harry Reid Intl Airport to Washington, D.C. Reagan-National Airport?

  • How old do you have to be to fly from Las Vegas Harry Reid Intl Airport to Washington, D.C. Reagan-National Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Las Vegas Harry Reid Intl Airport to Washington, D.C. Reagan-National Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

    The travel and health documents you'll need for your trip to Washington, D.C. Reagan-National Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Reagan-National Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Las Vegas to Washington, D.C. Reagan-National Airport?

  • What is the most popular airline from Las Vegas to Washington, D.C. Reagan-National Airport?

Best airlines flying from Las Vegas to Washington, D.C. Reagan-National Airport

Compare and see reviews for airlines that fly from Las Vegas to Washington, D.C. Reagan-National Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $135Free CancellationRating
5.7
3,050 reviews
Search Frontier flights
American AirlinesPriceFrom $221Free CancellationRating
7.2
11,212 reviews
Search American Airlines flights
United AirlinesPriceFrom $226Free CancellationRating
7.4
9,229 reviews
Search United Airlines flights
SouthwestPriceFrom $254Free CancellationRating
8.0
4,271 reviews
Search Southwest flights
DeltaPriceFrom $256Free CancellationRating
7.9
8,131 reviews
Search Delta flights
  • Southwest Flights From Las Vegas to Washington, D.C. Reagan-National Airport

    Across 8 Southwest flights from Las Vegas to Washington, D.C. Reagan-National Airport this week, the average price was $471, with the best Southwest deals starting from $254 round-trip. 4,271 users have rated Southwest on momondo, with an average score of 8.0/10.

  • American Airlines Flights From Las Vegas to Washington, D.C. Reagan-National Airport

    $221 is the best American Airlines flight deal from Las Vegas to Washington, D.C. Reagan-National Airport found on momondo over the last 72 hours. The average American Airlines ticket price found was closer to $434, however, with flight time and availability significantly affecting the price. American Airlines (7.2/10 from 11,212 user reviews) flies into Washington, D.C. Reagan-National Airport from Las Vegas 7 times in an average week so prices can vary.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Waldorf
Woodbridge
Tysons
Laurel
Colonial Beach
Silver Spring
Towson
Fredericksburg
Gaithersburg
Rockville
Manassas
Springfield
Fairfax
Linthicum Heights
Bethesda
Glen Burnie

Why use momondo?

Why should I use momondo to find a flight deal from Las Vegas to Washington, D.C.?

Finding the right flight to Washington, D.C. from Las Vegas is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

Can I find flights from Las Vegas to Washington, D.C. with flexible booking policies on momondo?

Yes. All flights to Washington, D.C. from Las Vegas on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Las Vegas to Washington, D.C.?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Las Vegas to Washington, D.C..

I’m not ready to book a flight from Las Vegas to Washington, D.C. right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Las Vegas to Washington, D.C. flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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1 adult
Wed 3/4
Wed 3/11

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