$94 Cheap Flights from Washington (DCA) to Las Vegas (LAS)

View $94 flight on Tue, May 13, 2025Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Harry Reid Intl. Airport (LAS)

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Find available prices by choosing your travel dates.

Cheap Flights from Washington to Las Vegas (DCA-LAS)

Prices were available within the past 7 days and start at $94 for one-way flights and $183 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, May 6 - Wed, May 7
DCA
Washington
LAS
Las Vegas
$183 Roundtrip, found 3 hours ago
$183
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Tue, May 6 from Washington to Las Vegas, returning Wed, May 7, priced at $183 found 3 hours ago
Frontier Airlines
Sat, May 3 - Tue, May 6
DCA
Washington
LAS
Las Vegas
$188 Roundtrip, just found
$188
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, May 3 from Washington to Las Vegas, returning Tue, May 6, priced at $188 just found
Frontier Airlines
Wed, Apr 30 - Thu, May 1
DCA
Washington
LAS
Las Vegas
$193 Roundtrip, just found
$193
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Apr 30 from Washington to Las Vegas, returning Thu, May 1, priced at $193 just found
Hawaiian Airlines
Tue, Jul 8 - Tue, Jul 22
DCA
Washington
LAS
Las Vegas
$197 Roundtrip, found 4 days ago
$197
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Tue, Jul 8 from Washington to Las Vegas, returning Tue, Jul 22, priced at $197 found 4 days ago
Frontier Airlines
Sun, May 4 - Wed, May 7
DCA
Washington
LAS
Las Vegas
$198 Roundtrip, just found
$198
Roundtrip
just found
Select Frontier Airlines flight, departing Sun, May 4 from Washington to Las Vegas, returning Wed, May 7, priced at $198 just found
American Airlines
Sun, May 25 - Tue, Jun 3
DCA
Washington
LAS
Las Vegas
$202 Roundtrip, found 3 hours ago
$202
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Sun, May 25 from Washington to Las Vegas, returning Tue, Jun 3, priced at $202 found 3 hours ago
Frontier Airlines
Tue, Apr 29 - Wed, Apr 30
DCA
Washington
LAS
Las Vegas
$203 Roundtrip, found 9 hours ago
$203
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Tue, Apr 29 from Washington to Las Vegas, returning Wed, Apr 30, priced at $203 found 9 hours ago
American Airlines
Wed, May 21 - Sat, May 31
DCA
Washington
LAS
Las Vegas
$205 Roundtrip, found 1 hour ago
$205
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Wed, May 21 from Washington to Las Vegas, returning Sat, May 31, priced at $205 found 1 hour ago
Alaska Airlines
Tue, Sep 9 - Wed, Sep 17
DCA
Washington
LAS
Las Vegas
$208 Roundtrip, found 2 days ago
$208
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Sep 9 from Washington to Las Vegas, returning Wed, Sep 17, priced at $208 found 2 days ago
Southwest Airlines
Mon, May 19 - Thu, May 29
DCA
Washington
LAS
Las Vegas
$225 Roundtrip, found 1 hour ago
$225
Roundtrip
found 1 hour ago
Select Southwest Airlines flight, departing Mon, May 19 from Washington to Las Vegas, returning Thu, May 29, priced at $225 found 1 hour ago
Flights from Washington (DCA) to Las Vegas (LAS)
Origin airport
Ronald Reagan Washington National
Destination airport
Harry Reid Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, United
Roundtrip price
$182
Distance
2083 mi

Washington to Las Vegas Flights

The cheapest times to fly from Washington to Las Vegas

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Las Vegas are during the month of May. You can find some of the cheapest flights from Washington to Las Vegas with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Washington to Las Vegas

Sunday is one of the best days to book for cheap flights from Washington to Las Vegas: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Washington to Las Vegas

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Las Vegas in 2025. You can also book with separate airlines for your outbound and return journeys, from $94 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Las Vegas flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Las Vegas airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Ronald Reagan Washington National Airport (DCA) to Harry Reid Intl. Airport (LAS) cost?
You can find cheap return fares from Ronald Reagan Washington National Airport (DCA) to Harry Reid Intl. Airport (LAS) starting at $177. Book your seat and get ready for takeoff. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a American Airlines and Frontier Airlines flight leaving DCA on May 11 2025 and touching down at LAS. The price was last updated on April 23 2025 and has not changed since.
What is the cheapest month to fly from DCA to LAS?
The cheapest flights from DCA to LAS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Ronald Reagan Washington National Airport (DCA) to Harry Reid Intl. Airport (LAS)?
When jetting out of Ronald Reagan Washington National Airport (DCA), you can get on a direct flight to Harry Reid Intl. Airport (LAS) with American Airlines.
What is the cheapest airline that flies from DCA to LAS?
Journey from DCA to LAS with Southwest Airlines. This airline currently offers the cheapest one-way ticket for this route, starting at $108. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from DCA on July 5 2025. Prices were last updated on April 23 2025 and have not changed since.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Harry Reid Intl. Airport (LAS)?
On average, Ronald Reagan Washington National Airport (DCA) only offers 1 nonstop flight to Harry Reid Intl. Airport (LAS) every day. For more choices, try our easy-to-use filters. Just enter your travel details, then choose “1 Stop” or “2+ Stops” to find flights with layovers.
What are the most popular departure times for flights from Ronald Reagan Washington National Airport (DCA) to Harry Reid Intl. Airport (LAS)?
More passengers fly between DCA and LAS at 7 AM than at any other time of day. Prefer a quieter experience? Travel outside of rush hours and it’s possible you’ll save on your fare as well.
What day of the week has the most flights from DCA to LAS?
Travel on a Friday if you’re looking for the biggest selection of flights from Ronald Reagan Washington National Airport (DCA) to Harry Reid Intl. Airport (LAS).
What is the earliest flight from Ronald Reagan Washington National Airport (DCA) to Harry Reid Intl. Airport (LAS)?
The earliest flight leaving Ronald Reagan Washington National Airport (DCA) is at around 7:43AM UTC-5. Board this plane and you’ll arrive at Harry Reid Intl. Airport (LAS) at approximately 10:14AM UTC-8. The overall travel time is 5h 31m.
How long does it take to fly from Ronald Reagan Washington National Airport (DCA) to Harry Reid Intl. Airport (LAS)?
Flights from DCA to LAS have an average travel time of 5 hours and 31 minutes. The distance between these two airports is 2,100 mi.
What is the best time to fly from Ronald Reagan Washington National Airport (DCA) to Harry Reid Intl. Airport (LAS)?
Book a flight from Ronald Reagan Washington National Airport (DCA) to Harry Reid Intl. Airport (LAS) that takes off before 3 PM to reduce the likelihood of delays. Departures after this hour have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Las Vegas from Ronald Reagan Washington National Airport (DCA)?
Harry Reid Intl. Airport (LAS) is the only airport in Las Vegas with direct flights from Ronald Reagan Washington National Airport (DCA). Check out your options and discover affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Ronald Reagan Washington National Airport (DCA) to Harry Reid Intl. Airport (LAS) last-minute?
Booking your plane ticket from DCA to LAS right before your journey is generally more expensive. However, if you’re flexible with your departure dates and times, you could land a cheap last-minute fare.
Is it cheaper to book a DCA to LAS flight and hotel package?
You’ll typically save money by securing a DCA to LAS flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it’s simple to manage everything in one place. After choosing your preferred accommodations and flights, consider adding extras like car rentals, activities and tours.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to Harry Reid Intl. Airport (LAS)?
In most instances, you can cancel or reschedule your DCA to LAS flight. However, additional charges may apply, especially if you made your booking more than 24 hours ago. Check your itinerary for the airline’s policies and fees on flight changes, or if you’d like further details, head to our Customer Service portal.

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