LAS - DCA

$149 Find Cheap Flights from Las Vegas to Reagan Washington National Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Las Vegas to Reagan-National departing on 5/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Reagan-National Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Las Vegas to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Las Vegas to Washington, D.C., as well as popular online travel agencies
Travelers love KAYAK
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Everything you should know

Cheapest round-trip
$269
Typical prices: $450-$271
Frontier
Wed 6/3Mon 6/8
LAS - DCA • 1 stop
Cheapest non-stop
$360
Typical prices: $502-$325
American Airlines
Wed 5/27Wed 6/3
LAS - DCA • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Choose Main Cabin Extra on American for early boarding.
Use Remote Bag Check at LAS for a smoother departure.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $269 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with American Airlines and Southwest. Average duration is 4h 43m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 82% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $253 (round-trip)
Shortest trip • 6h 16m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 11% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 32% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Reagan-National!
Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Las Vegas to Reagan-National (LAS-DCA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Las Vegas to Reagan-National that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Las Vegas to Reagan-National

Wed, Jun 3 - Mon, Jun 8
Frontier Logo
12:29 am - 12:59 pm
LAS
-
DCA
9h 30m
1 stop
Frontier Logo
7:00 am - 1:44 pm
DCA
-
LAS
9h 44m
1 stop
$269Frontier
Mon, May 11 - Sat, May 16
Frontier Logo
8:59 pm - 4:59 pm
LAS
-
DCA
17h 00m
1 stop
Frontier Logo
7:00 am - 11:29 pm
DCA
-
LAS
19h 29m
1 stop
$271Frontier
Sat, May 9 - Sat, May 16
Frontier Logo
10:07 pm - 12:59 pm
LAS
-
DCA
35h 52m
2 stops
Frontier Logo
7:00 am - 8:03 pm
DCA
-
LAS
16h 03m
1 stop
$274Frontier
Sun, May 10 - Sat, May 16
Frontier Logo
12:29 am - 12:59 pm
LAS
-
DCA
9h 30m
1 stop
Frontier Logo
7:00 am - 11:35 am
DCA
-
LAS
7h 35m
1 stop
$275Frontier
Wed, May 20 - Sat, May 23
Multiple Airlines Logo
12:29 am - 12:59 pm
LAS
-
DCA
9h 30m
1 stop
Multiple Airlines Logo
6:00 pm - 7:41 am
DCA
-
LAS
16h 41m
2 stops
$276Multiple Airlines
Sun, Jun 7 - Mon, Jun 22
Frontier Logo
12:29 am - 9:58 pm
LAS
-
DCA
18h 29m
1 stop
Frontier Logo
7:00 am - 11:29 am
DCA
-
LAS
7h 29m
1 stop
$277Frontier
Thu, May 7 - Sun, May 10
Multiple Airlines Logo
9:18 pm - 9:58 pm
LAS
-
DCA
21h 40m
2 stops
Multiple Airlines Logo
7:00 am - 11:35 am
DCA
-
LAS
7h 35m
1 stop
$279Multiple Airlines
Mon, May 4 - Fri, May 8
Frontier Logo
9:20 pm - 9:58 pm
LAS
-
DCA
21h 38m
1 stop
Frontier Logo
6:00 pm - 11:29 pm
DCA
-
LAS
8h 29m
1 stop
$280Frontier
Sun, May 31 - Sun, Jun 7
Frontier Logo
8:59 pm - 12:59 pm
LAS
-
DCA
13h 00m
1 stop
Frontier Logo
7:00 am - 11:35 am
DCA
-
LAS
7h 35m
1 stop
$281Frontier
Thu, May 14 - Thu, May 28
Frontier Logo
8:59 pm - 12:59 pm
LAS
-
DCA
13h 00m
1 stop
Frontier Logo
7:00 am - 8:03 pm
DCA
-
LAS
16h 03m
1 stop
$282Frontier
Booking Insights

KAYAK's insights & trends for Las Vegas to Reagan-National flights

Get data-powered insights and trends into flights from Las Vegas to Reagan-National to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Las Vegas to Washington, D.C. Reagan-National Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Las Vegas to Washington, D.C. Reagan-National Airport departing in June.

What’s the cheapest day of the week to fly from Las Vegas to Reagan Washington National Airport?

The average price of all round-trip flights from Las Vegas to Washington, D.C. Reagan-National Airport clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Reagan Washington National Airport on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Las Vegas to Reagan Washington National Airport. For your return ticket, we recommend flying on a Tuesday and avoiding Thursdays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Las Vegas to Washington, D.C. Reagan-National Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Las Vegas to Washington, D.C. Reagan-National Airport is December, where tickets cost $257 (return) on average. On the other hand, the most expensive months are October and March, where the average cost of round-trip tickets is $536 and $501 respectively.

Can I save money by flying with a layover from Las Vegas to Washington, D.C. Reagan-National Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $320, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Las Vegas to Washington, D.C. Reagan-National Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Las Vegas to Washington, D.C. Reagan-National Airport, you should book around 2 weeks before departure, which saves you about 11% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Expert advice

Expert advice for your flight from Las Vegas to Reagan-National

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Harriet Baskas

Harriet Baskas

Expert on American Airlines and LAS

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Ramsey Qubein

Ramsey Qubein

Expert on DCA

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Good to know

Low seasonJanuary
Cheapest flight$149
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from Las Vegas to Reagan Washington National Airport

When to book flights from Las Vegas to Reagan-National

Are your dates flexible? Find out the best times to travel from Las Vegas to Reagan-National based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Las Vegas to Reagan Washington National Airport flights

  • What is the cheapest flight from Las Vegas to Washington, D.C. Reagan-National Airport?

    In the last 3 days, the lowest price for a flight from Las Vegas to Washington, D.C. Reagan-National Airport was $149 for a one-way ticket and $269 for a round-trip.

  • Do I need a passport to fly between Las Vegas and Reagan Washington National Airport?

    No, a passport isn't needed to fly from Las Vegas to Reagan Washington National Airport. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Las Vegas to Reagan Washington National Airport?

    On your way to Reagan Washington National Airport, you’ll fly out from Las Vegas Harry Reid Intl. You’ll be landing at Washington, D.C. Reagan-National.

  • Which airlines offer Wi-Fi service onboard planes from Las Vegas to Reagan Washington National Airport?

    JetBlue, and American Airlines offer inflight Wi-Fi service on the Las Vegas to Reagan Washington National Airport flight route.

  • Which aircraft models fly most regularly from Las Vegas to Reagan Washington National Airport?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the Las Vegas to Reagan Washington National Airport flight route.

  • Which airline alliances offer flights from Las Vegas to Reagan Washington National Airport?

    SkyTeam, and oneworld are the airline alliances operating flights between Las Vegas and Reagan Washington National Airport, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Las Vegas to Reagan Washington National Airport?

    There are nonstop flights from Las Vegas to Reagan Washington National Airport on a daily basis.

  • Which is the best airline for flights from Las Vegas to Washington, D.C., Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Las Vegas to Washington, D.C. are Southwest and Delta. With an average price for the route of $520 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $318 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Las Vegas to Reagan Washington National Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Las Vegas to Reagan Washington National Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Las Vegas to Reagan Washington National Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Reagan Washington National Airport from Las Vegas is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Las Vegas to Reagan Washington National Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Reagan Washington National Airport with an airline and back to Las Vegas with another airline. Booking your flights between Las Vegas and DCA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Las Vegas to Reagan Washington National Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Reagan Washington National Airport from Las Vegas up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Las Vegas to Washington, D.C. Reagan-National Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $245 or less one-way and $499 or less round-trip.

Prefer to fly direct from Las Vegas to Reagan Washington National Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Las Vegas Harry Reid Intl to Washington, D.C. Reagan-National.
Find which airlines fly direct from Las Vegas Harry Reid Intl Airport to Washington, D.C. Reagan-National Airport, which days they fly and book direct flights.

Direct departures

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

Monday

American Airlines,Southwest

American Airlines,Southwest

Tuesday

American Airlines,Southwest

American Airlines,Southwest

Wednesday

American Airlines,Southwest

American Airlines,Southwest

Thursday

American Airlines,Southwest

American Airlines,Southwest

Friday

American Airlines,Southwest

American Airlines,Southwest

Saturday

American Airlines,Southwest

American Airlines,Southwest

Sunday

American Airlines,Southwest

American Airlines,Southwest

See more direct flights

Direct returns

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

Monday

American Airlines,Southwest

American Airlines,Southwest

Tuesday

American Airlines,Southwest

American Airlines,Southwest

Wednesday

American Airlines,Southwest

American Airlines,Southwest

Thursday

American Airlines,Southwest

American Airlines,Southwest

Friday

American Airlines,Southwest

American Airlines,Southwest

Saturday

American Airlines,Southwest

American Airlines,Southwest

Sunday

American Airlines,Southwest

American Airlines,Southwest

See more direct flights

Reviews of the top 4 airlines serving from Las Vegas to Reagan-National

 
See real verified KAYAK customer reviews for airlines flying from Las Vegas to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Las Vegas to Reagan-National? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4331 reviews
8.0Comfort
7.5Entertainment
7.0Food
8.1Boarding
8.6Crew
Airline reviews

Southwest is kind of a slum airline. It’s gotten more expensive over the years for less and less service. I am a Southwest Chase Visa card holder and was forced to choose a seat in the 26th row in the middle seat. However my wife who is a rewards member but doesn’t hold a card or anything else, gets randomly assigned a normally paid seat in row 6! How does that work?

4.0 OkayDavid, Apr 2026
COS - DAL
Read more Southwest reviews

Southwest is kind of a slum airline. It’s gotten more expensive over the years for less and less service. I am a Southwest Chase Visa card holder and was forced to choose a seat in the 26th row in the middle seat. However my wife who is a rewards member but doesn’t hold a card or anything else, gets randomly assigned a normally paid seat in row 6! How does that work?

For the first time in a long time, the Wi-Fi actually worked the entire flight! The flight crew was amazing as usual.

The seat was not comfortable. 1D. My back was sore all night and the next day.

Great flight. I didn't get a drink because I was asleep whole on the flight.

Great flight from Seattle to Phoenix and to Chicago-Midway from Phoenix

The new boarding process was easy and straightforward. Very pleasant.

The flight was okay. The pilots did an amazing job and kept us updated on the flight. The flight attendants were okay. They found time to be chatty with each other rather than focus on the guests. One of the attendants was a little less warm when asking about my bag I had on my lap that I was using during latter part of the mid- flight. Mind you, it was not the departure descent. I’m respectful to each and every attendant, it was the tone in her voice reminding me to place my carryon bag on the floor. I hope to have a better experience next time.

The entire travel day was a disaster from beginning to end. Woke up at two in the morning to make it to San Juan airport in time for a 5:30 am flight to Milwaukee which connected in Baltimore. Massive delays lead to me missing original connection out of Baltimore. Sixteen hours of delays/rebooking/layover time later, arrived in Milwaukee to find that only one of two checked bags made it there (despite the fact that Southwest brought another 737 jet to San Juan to fly us out to our original Baltimore connection—-not squeezed into another booked flight). The flight from Baltimore to Milwaukee was barely half full, so there was no logical reason to ship my bags out of Baltimore on a different flight to Chicago to then ship to Milwaukee. Southwest decided that my bags should not have been on the same connecting flight I WAS ON to Milwaukee, and then proceeded to accidentally leave my larger bag with the important items in Chicago. Terrible logic and support all around. Extremely angered and disappointed with SW. What a clownish operation your company has become!

It was as expected and I was grateful for the wheel chair help and ease of use.

One of the best airlines for fast boarding, on time arrivals, and top notch service!

The baggage belt was not updated on the Delta App and was displayed on the wrong belt board. Was not expecting this to happen.

The plan was delayed and left DC 90 minutes late. However, it showed a 20 minute delay on the delta app, then a 12 min delay. It turned out to be an hour delay. I found out where the plane was with flightaware. Stop keeping customers in the dark about what is going on.

Everything went smoothly, although the usual gripes about airline travel were still present: the boarding process is inefficient, the snack selection is limited, and so on. Since there was extra space on the flight, the gate agent rearranged many people's seats to put people on the aisles and windows, leaving the middle seats empty, as much as possible, which was pretty great.

Landed without a gate ready. Plane is extremely old and dirty.

All the amenities was wonderful, if they could keep their prices that low. I'd fly with them all the time.

Very old plane with no inflight entertainment. I purchased the internet pass and it was nearly unusable.

My tray was broken so i had no place to work or eat except my lap. Flight attendant said I would get an email with some credit or miles, it was a complete waste of time as I could only function at about 20% of normal. I have not received anything yet.

Short trip, no food and therefore no expectation for much interaction with staff who were pleasant and professional. My critique is on comfort of the seats. Exit rows and comfort seats do not provide enough personal space for 3 side-by-side seats, especially when in the middle row. Some passengers are not considerate of the middle seat and there should be signs that state something to the effect of: "please consider giving middle seats use of the armrests."

My flight yesterday evening was delayed 3.5 hours with no water or food service. Poor experience

Transparency from pilots, quick boarding and exiting the plane, staff greeted to each and everyone,

It was great. Smooth flight, comfortable, left on time and landed on time.

Horrible experience upon landing. Probably more due to DCA utter incompetence than AA.

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

Flight has been delayed every time I've ever taken it. Seats uncomfortable. Children behind me yelling the entire flight. Some of this is out of their control but overall just consistently not a great experience.

Poor communication ahead of time about flight delays and old planes/other equipment.

Never going to fly your airline again if it can be avoided.

Not to have gotten delayed by 2+ hours for the fourth straight American flight. They're the worst.

Other than nearly three hour delay for maintenance issues, everything went smooth

Snow delayed boarding several times, which I understand happens. Issue I had was that after we did board, pilot told us we were going to roll out to be de-iced, then on our way. We were de-iced once, taxied to the tarmac and then stopped. Sat for another 30 minutes or so, the another de-icing. Then we rolled out to a parking spot, only to sit for another hour due to a traffic stop in DCA, which I'm confident they knew would happen before we boarded. Pilot gave no updates other than we had to hold, attendants did speak to the crew, but when asked, said the pilot would be updating us. We on the ground in the plane waiting for over 2 hours. They did communicate that bathrooms would be open, but no other news until we left. Would have been better to be up front about status.

Flight was delayed. Not much information on when the flight would take off. Eventually we were told it was maintenance. App was not giving updates.

They didn’t offer a water, even after I asked

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

The flight never took off and we spent 7 hours at the airport

Everything you need to know for your flight from Las Vegas to Reagan-National

Information on your arrival and departure airports