DCA - LAS

$130 Find Cheap Flights from Reagan Washington National Airport to Las Vegas

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Reagan-National to Las Vegas departing on 5/12. 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 Las Vegas

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Las Vegas.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Las Vegas.
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Everything you should know

Cheapest round-trip
$287
Typical prices: $587-$337
Frontier
Fri 6/19Sat 6/20
DCA - LAS • 1 stop
Cheapest non-stop
$346
Typical prices: $621-$346
Southwest
Sat 5/9Tue 5/12
DCA - LAS • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
American's Basic Economy is carry-on only for budget flyers.
Southwest provides free snacks and soft drinks onboard.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $287 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with American Airlines and Southwest. Average duration is 5h 13m
Direct flights
Direct flights
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Direct flights
Direct flights
+1
Avoid delays
Most punctual • 90% on-time
Best time • Fewest delays
Insights
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Top layover airports
Cheapest • Avg $303 (round-trip)
Shortest trip • 6h 48m (one-way)
Insights
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When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 26% compared to booking last minute.
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When to travel
Cheapest • 25% price drop
Most popular
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Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Reagan-National to Las Vegas 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 Reagan-National to Las Vegas

Fri, Jun 19 - Sat, Jun 20
Frontier Logo
6:00 pm - 11:29 pm
DCA
-
LAS
8h 29m
1 stop
Frontier Logo
6:30 am - 9:59 pm
LAS
-
DCA
12h 29m
1 stop
$287Frontier
Tue, Jun 16 - Fri, Jun 19
Frontier Logo
7:00 am - 11:29 am
DCA
-
LAS
7h 29m
1 stop
Frontier Logo
6:15 am - 4:57 pm
LAS
-
DCA
7h 42m
1 stop
$288Frontier
Sat, Jul 18 - Wed, Jul 22
Multiple Airlines Logo
3:35 pm - 10:25 pm
DCA
-
LAS
9h 50m
1 stop
Multiple Airlines Logo
9:24 pm - 12:57 pm
LAS
-
DCA
12h 33m
1 stop
$289Multiple Airlines
Mon, May 18 - Wed, May 20
Frontier Logo
6:00 pm - 11:29 pm
DCA
-
LAS
8h 29m
1 stop
Frontier Logo
12:29 am - 12:59 pm
LAS
-
DCA
9h 30m
1 stop
$290Frontier
Thu, May 28 - Sun, May 31
Frontier Logo
7:00 am - 8:03 pm
DCA
-
LAS
16h 03m
1 stop
Frontier Logo
6:30 am - 12:59 pm
LAS
-
DCA
27h 29m
1 stop
$291Frontier
Tue, Jul 21 - Thu, Jul 23
Multiple Airlines Logo
3:35 pm - 10:25 pm
DCA
-
LAS
9h 50m
1 stop
Multiple Airlines Logo
12:59 am - 4:57 pm
LAS
-
DCA
12h 58m
1 stop
$292Multiple Airlines
Wed, May 27 - Tue, Jun 16
Frontier Logo
7:00 am - 9:46 pm
DCA
-
LAS
17h 46m
2 stops
Frontier Logo
12:59 am - 12:57 pm
LAS
-
DCA
8h 58m
1 stop
$293Frontier
Mon, May 25 - Wed, May 27
Frontier Logo
7:00 am - 11:29 pm
DCA
-
LAS
19h 29m
1 stop
Frontier Logo
12:29 am - 12:59 pm
LAS
-
DCA
9h 30m
1 stop
$294Frontier
Fri, May 1 - Sun, May 3
Frontier Logo
1:59 pm - 8:11 pm
DCA
-
LAS
9h 12m
1 stop
Frontier Logo
12:59 am - 12:59 pm
LAS
-
DCA
9h 00m
1 stop
$295Frontier
Fri, May 1 - Tue, May 5
Frontier Logo
7:59 am - 5:46 pm
DCA
-
LAS
12h 47m
1 stop
Frontier Logo
12:29 am - 12:59 pm
LAS
-
DCA
9h 30m
1 stop
$296Frontier
Booking Insights

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

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

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

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

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

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

If you are looking for a flight deal from Reagan Washington National Airport to Las Vegas, look for departures on Tuesdays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Las Vegas, Wednesday is the cheapest day to fly and Monday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Reagan-National Airport to Las Vegas, 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 Washington, D.C. Reagan-National Airport to Las Vegas is August, where tickets cost $345 (return) on average. On the other hand, the most expensive months are April and March, where the average cost of round-trip tickets is $526 and $511 respectively.

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

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 $473, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Reagan-National Airport to Las Vegas, 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 Washington, D.C. Reagan-National Airport to Las Vegas, you should book around 3 weeks before departure, which saves you about 26% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Expert advice

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

 
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
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.

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.

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$130
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from Reagan Washington National Airport to Las Vegas

When to book flights from Reagan-National to Las Vegas

Are your dates flexible? Find out the best times to travel from Reagan-National to Las Vegas 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 Reagan Washington National Airport to Las Vegas flights

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Reagan-National Airport to Las Vegas was $130 for a one-way ticket and $287 for a round-trip.

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

    No

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

    Reagan Washington National Airport airport is called Washington, D.C. Reagan-National and the only airport in Las Vegas is Las Vegas Harry Reid Intl.

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

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

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Las Vegas are Southwest and Delta. With an average price for the route of $529 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 $406 and an overall rating of 7.9.

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

    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 Reagan Washington National Airport to Las Vegas.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Las Vegas from Reagan Washington National Airport 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 Reagan Washington National Airport to Las Vegas?

    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 Las Vegas with an airline and back to Reagan Washington National Airport with another airline. Booking your flights between Reagan Washington National Airport and LAS 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 Reagan Washington National Airport to Las Vegas?

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

  • Looking for a cheap flight? 25% of our users found flights on this route for $271 or less one-way and $513 or less round-trip.

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

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

Direct departures

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

Direct returns

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

Reviews of the top 5 airlines serving from Reagan-National to Las Vegas

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Las Vegas. 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 Reagan-National to Las Vegas? 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 4330 reviews
8.1Boarding
8.6Crew
8.0Comfort
7.5Entertainment
7.0Food
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!

Vegetarian selection could be better. Bread was too hard to chew.

Crew was friendly and competent. Food, wine, and entertainment were excellent except the raw tuna on the flight to Split. Recommend against serving that - at least as the only option. Many medical conditions do not allow people to eat raw fish.

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

It was perfect! I've never flown with United before, but I definitely will in the future

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

My experience with Jet Blue was wonderful. My experience with Kayak sucked and will never use again.

Jet Blue has excellent everything, Friendly customer service and staff, clean aircraft’s and is always on time.

Entertainment and wifi were very sub-par - audio issues and no wifi

We were delayed and had to circle due to weather and had to divert for fuel. While I understand that you can’t control the weather I would have appreciated knowing that the crew wasn’t going to run out of hours and then having to spend the night in the Raleigh airport.

Messy plane that was falling apart Small screens that didn't work

I was traveling with two small kids and our TV s were the only ones not working. Informed the flight attendant who did nothing about them.

They forced me to check my hand luggage at the gate.

I specifically choose not to check bags to ensure I can proceed directly to ground transportation upon arrival. However, due to a recurring lack of cabin space, I was again forced to gate-check my rolling luggage after going through my luggage to take out electronics and batteries. This practice unilaterally changes the service agreement made at the time of purchase. JetBlue needs to find a better way to manage overhead space that honors the carry-on baggage allowance.

Still hasn’t left. Why are you asking how it was?

Flight was good wish there were more snacks options for such a long flight but stewardesses were very pleasant as was flight crew.

THe flight was an hour late. You got us on the plan and we sat on the ground for 45 minutes with no information from the pilot whatsoever. Worst flight this year.

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Incoming flight was delayed, delaying boarding. It then took 30 mins to take off. Took 20 mins to get to a gate because they changed the gate last minute, crew weren’t ready so there was no one staffed to work the jet bridge. Boarding was so disorganized as is usual with American because everyone just stands around the gate regardless of boarding group.

Delays with no explanation. It could have been handled better.

Flight delay for mechanical. Inbound arrived on time. No one said why mechanical delay.

Flight boarded, departed and landed on time. Excellent service from flight attendant in FIRST

This was one of the most frustrating travel experiences I've had to date. I had changed my flight day of to this one as it was slated to depart on time. It ended up being so delayed that my original flight took off before this one did. The boarding process began but eventually stopped and everyone had to get off the plane as a problem was identified. The person at the front desk just tried to laugh it off as if this wasn't already a huge inconvenience. From there, we eventually got to board only to sit at the gate for an additional hour because of some additional issue. This was extremely frustrating and caused a lot of stress.

It was a little concerning to hear the ground crew arguing with the flight crew over baggage space. Instead of taking them and checking them, they started checking for space in the first class cabin moving items around like the flight crew didn't know what they were doing. I was embarrassed for them.

Better service. No food options, but we did get drinks and a cookie.

We were 4+ hours delayed. AA is absolutely obnoxious. They just kept pushing back the time to the point where we did not get into Vegas until after midnight when we were supposed to arrive like 845pm.

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 Reagan-National to Las Vegas

Other airlines flying from Reagan-National to Las Vegas

Flights from the other most popular airlines that fly from Reagan-National to Las Vegas according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.