IAD - LAS

$185 Find Cheap Flights from Washington, D.C. to Las Vegas – Compare and Save

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Everything you should know

Cheapest return flight
$369
Typical prices: $503-$898
Alaska Airlines
Wed 12/12Sat 15/12
IAD - LAS • 1 stop
Cheapest direct flights
$398
Typical prices: $523-$924
United Airlines
Wed 5/12Wed 12/12
IAD - LAS • Direct
Direct flights
You can fly direct with United Airlines and Frontier. Average duration is 5h 15m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 90% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 7 weeks in advance save around 34% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 39% price drop
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Cheapest • Avg $411 (return)
Shortest trip • 6h 33m (one-way)
Insights
Insights
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Washington, D.C. to Las Vegas (IAD-LAS)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Dulles Intl to Las Vegas

Sat, 12 Dec - Tue, 15 Dec
Alaska Airlines Logo
18:42 - 09:42IAD  Washington, D.C. Dulles Intl-LAS Las Vegas Harry Reid Intl
18h 00m1 stop San Diego
Alaska Airlines Logo
07:52 - 17:39LAS  Las Vegas Harry Reid Intl-IAD Washington, D.C. Dulles Intl
6h 47m1 stop San Diego
$369Alaska Airlines
Sat, 7 Nov - Sat, 14 Nov
United Airlines Logo
17:40 - 19:58IAD  Washington, D.C. Dulles Intl-LAS Las Vegas Harry Reid Intl
5h 18mdirect
United Airlines Logo
07:40 - 15:08LAS  Las Vegas Harry Reid Intl-IAD Washington, D.C. Dulles Intl
4h 28mdirect
$398United Airlines
Sat, 31 Oct - Mon, 9 Nov
United Airlines Logo
17:40 - 19:58IAD  Washington, D.C. Dulles Intl-LAS Las Vegas Harry Reid Intl
5h 18mdirect
United Airlines Logo
23:45 - 07:07LAS  Las Vegas Harry Reid Intl-IAD Washington, D.C. Dulles Intl
4h 22mdirect
$426United Airlines
Tue, 10 Nov - Sat, 14 Nov
United Airlines Logo
17:40 - 19:58IAD  Washington, D.C. Dulles Intl-LAS Las Vegas Harry Reid Intl
5h 18mdirect
United Airlines Logo
07:40 - 15:08LAS  Las Vegas Harry Reid Intl-IAD Washington, D.C. Dulles Intl
4h 28mdirect
$432United Airlines
Mon, 2 Nov - Fri, 6 Nov
United Airlines Logo
17:40 - 19:58IAD  Washington, D.C. Dulles Intl-LAS Las Vegas Harry Reid Intl
5h 18mdirect
United Airlines Logo
23:45 - 07:07LAS  Las Vegas Harry Reid Intl-IAD Washington, D.C. Dulles Intl
4h 22mdirect
$455United Airlines
Wed, 11 Nov - Mon, 16 Nov
United Airlines Logo
17:40 - 19:58IAD  Washington, D.C. Dulles Intl-LAS Las Vegas Harry Reid Intl
5h 18mdirect
United Airlines Logo
23:45 - 07:07LAS  Las Vegas Harry Reid Intl-IAD Washington, D.C. Dulles Intl
4h 22mdirect
$461United Airlines
Thu, 29 Oct - Sat, 31 Oct
United Airlines Logo
17:40 - 19:58IAD  Washington, D.C. Dulles Intl-LAS Las Vegas Harry Reid Intl
5h 18mdirect
United Airlines Logo
07:40 - 15:08LAS  Las Vegas Harry Reid Intl-IAD Washington, D.C. Dulles Intl
4h 28mdirect
$464United Airlines
Sat, 7 Nov - Sat, 14 Nov
United Airlines Logo
17:40 - 19:58IAD  Washington, D.C. Dulles Intl-LAS Las Vegas Harry Reid Intl
5h 18mdirect
United Airlines Logo
13:17 - 20:45LAS  Las Vegas Harry Reid Intl-IAD Washington, D.C. Dulles Intl
4h 28mdirect
$465United Airlines
Sat, 24 Oct - Sat, 31 Oct
United Airlines Logo
18:00 - 20:08IAD  Washington, D.C. Dulles Intl-LAS Las Vegas Harry Reid Intl
5h 08mdirect
United Airlines Logo
23:45 - 06:07LAS  Las Vegas Harry Reid Intl-IAD Washington, D.C. Dulles Intl
4h 22mdirect
$470United Airlines
Sat, 21 Nov - Wed, 2 Dec
Alaska Airlines Logo
18:39 - 23:55IAD  Washington, D.C. Dulles Intl-LAS Las Vegas Harry Reid Intl
8h 16m1 stop San Diego
Alaska Airlines Logo
06:00 - 17:39LAS  Las Vegas Harry Reid Intl-IAD Washington, D.C. Dulles Intl
8h 39m1 stop San Diego
$475Alaska Airlines
Booking Insights

Price, demand, and travel trends for Washington, D.C. Dulles Intl Airport to Las Vegas flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

How much is a return flight from Washington, D.C. Dulles Intl Airport to Las Vegas?

Return flights from Washington, D.C. Dulles Intl Airport to Las Vegas typically range from $503 to $898. The lowest price found in the past 5 days was $369 on Alaska Airlines.

What's the cheapest day of the week to fly from Washington, D.C. Dulles Intl Airport to Las Vegas?

Based on deals KAYAK users found in the last 12 months, Saturday is the cheapest day of the week to fly from Washington, D.C. Dulles Intl Airport to Las Vegas. It’s 12% cheaper than the average day, while Sunday is the most expensive, with prices 8% higher.

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

•August is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Las Vegas at $421 return.
•October ($1,038) and March ($840) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 146% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Washington, D.C. Dulles Intl Airport to Las Vegas the cheapest?

Flights from Washington, D.C. Dulles Intl Airport to Las Vegas are cheapest 7 weeks before departure. Booking in this window typically costs about 34% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for Washington, D.C. Dulles Intl Airport to Las Vegas flights

Low season

February

Cheapest flight

$185
Beat the crowds with an average 23% drop in traveller numbers.
The most popular month to fly with an average 49% increase in traveller numbers.
One-way flight from Washington, D.C. Dulles Intl Airport to Las Vegas

When to book flights from Dulles Intl to Las Vegas

Are your dates flexible? Find out the best times to travel from Dulles Intl to Las Vegas based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Washington, D.C. Dulles Intl Airport to Las Vegas flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • What are the earliest and latest flights from Washington, D.C. Dulles Intl Airport to Las Vegas?

    These are the earliest and latest flight times available from Washington, D.C. Dulles Intl Airport to Las Vegas:

    • Earliest: departs at 06:00 and lands at 11:15
    • Latest: departs at 20:52 and lands at 02:07.

    The flight takes about 5h 15m.

  • Which cabin classes can I book on flights from Washington, D.C. Dulles Intl Airport to Las Vegas?

    Only Economy class is available on flights from Washington, D.C. Dulles Intl Airport to Las Vegas.

  • How long is a flight from Washington, D.C. Dulles Intl Airport to Las Vegas?

    A direct flight from Washington, D.C. Dulles Intl Airport to Las Vegas takes 5h 15m, covering 5,334 km.

  • Do I need a passport to fly from Washington, D.C. Dulles Intl Airport to Las Vegas?

    No, a passport is not required for this domestic route, but you will need another form of identification, such as a driving licence.

  • How much should I expect to pay for a Washington, D.C. Dulles Intl Airport to Las Vegas flight?

    Return flights from Washington, D.C. Dulles Intl Airport to Las Vegas range from $503 to $898, with an average of $695 over the past 12 months. Anything below $503 counts as a good deal.

  • How expensive are last-minute Washington, D.C. Dulles Intl Airport to Las Vegas flights?

    Last-minute fares on this route (booked within two weeks of departure) run 29% above the $695 route average. Book 7 weeks before departure for the lowest fares.

  • How much can I save by having a stopover when flying from Washington, D.C. Dulles Intl Airport to Las Vegas?

    On this route, stopover flights are cheaper than direct options on average. Stopover fares average $411 return via Orlando (MCO), compared with $717 for direct.

  • What is the standard checked bag allowance on flights from Washington, D.C. Dulles Intl Airport to Las Vegas?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge $45–$144 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Washington, D.C. Dulles Intl Airport to Las Vegas?

    The Boeing 737 MAX 9 family is used most often on this route, operated mainly by United Airlines. Other aircraft seen on the route include Boeing 737 MAX 8 variants.

  • How are flight departures from Washington, D.C. Dulles Intl Airport to Las Vegas spread across the day?

    Morning is the busiest departure period on Washington, D.C. Dulles Intl Airport to Las Vegas flights, with 34% leaving in that window. Afternoon departures account for 33%, Evening flights for 33%, and Night flights for 0%.

  • Which airlines offer Wi-Fi on Washington, D.C. Dulles Intl Airport to Las Vegas flights?

    JetBlue is the only airline on the Washington, D.C. Dulles Intl Airport to Las Vegas route offering in-flight Wi-Fi. Pricing depends on fare class.

  • How are flight prices from Washington, D.C. Dulles Intl Airport to Las Vegas looking right now?

    One-way fares from Washington, D.C. Dulles Intl Airport to Las Vegas are currently lower than usual. Average one-way flight prices are about $230, which is 35% below the typical average for this route.

  • Which car hire options are available at Las Vegas Harry Reid Intl Airport (LAS)?

    Las Vegas Harry Reid Intl Airport (LAS) hosts 5 major car hire companies, with daily rates starting from around $12 for economy cars. Top options include:

    • Easirent
    • Ace
    • Fox
    • Dollar
    • Thrifty

  • Which airports can I use when flying from Washington, D.C. Dulles Intl Airport to Las Vegas?

    Flights from Washington, D.C. Dulles Intl Airport to Las Vegas usually depart from Washington, D.C. Dulles Intl (IAD) and arrive at Las Vegas Harry Reid Intl (LAS).

  • What time of day has the fewest delays on flights from Washington, D.C. Dulles Intl Airport to Las Vegas?

    Afternoon flights have the fewest delays on this route, while evening departures tend to have the most.

  • At what point is a flight considered delayed on the route from Washington, D.C. Dulles Intl Airport to Las Vegas?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Washington, D.C. Dulles Intl Airport to Las Vegas route, 12% of flights were delayed in the past three months, with delays averaging 2h 52m.

  • Which airports do connecting flights from Washington, D.C. Dulles Intl Airport to Las Vegas pass through?

    One-stop flights from Washington, D.C. Dulles Intl Airport to Las Vegas most commonly connect through:

    • Atlanta Hartsfield-Jackson (ATL) – 50% of one-stop connections
    • Dallas/Fort Worth (DFW) – 15% of one-stop connections
    • Denver Intl (DEN) – 8% of one-stop connections
    • San Diego (SAN) – 7% of one-stop connections

  • Can I save money by using flexible dates for flights from Washington, D.C. Dulles Intl Airport to Las Vegas?

    Yes. Flexible dates can save you up to 19% on flights from Washington, D.C. Dulles Intl Airport to Las Vegas. Saturday is the cheapest departure day at $615 return on average, while Sunday is the most expensive at $755, a difference of $141.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • Which airlines fly from Washington, D.C. Dulles Intl Airport to Las Vegas?

    2 airlines operate flights between Washington, D.C. Dulles Intl Airport and Las Vegas. The airlines offering direct flights on this route include:

    • United Airlines
    • Frontier

  • How much time can I save by choosing a different stopover airport from Washington, D.C. Dulles Intl Airport to Las Vegas?

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time of 6h 33m, compared to 7h 22m via Charlotte Douglas (CLT) and 7h 24m via Houston George Bush Intcntl (IAH).

  • What is the time difference between Washington, D.C. Dulles Intl Airport and Las Vegas?

    Las Vegas is 3 hours behind Washington, D.C. Dulles Intl Airport (Pacific Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Las Vegas?

    Some of the most popular sights in Las Vegas are Fremont Street Experience, Planet Hollywood Resort & Casino, and Four Queens Casino. These are among the most viewed places in Las Vegas on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Washington, D.C. Dulles Intl Airport to Las Vegas flights?

    Among airlines operating Washington, D.C. Dulles Intl Airport to Las Vegas flights:

    • United Airlines: offers extra legroom; offers free seat selection
    • Frontier: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Washington, D.C. Dulles Intl Airport to Las Vegas flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • United Airlines: a cabin bag and a checked bag in Economy class
    • Frontier: a cabin bag and a checked bag in Economy class
    • JetBlue: a cabin bag in Economy class class

    Baggage allowance can vary by ticket type, cabin class, route, and airline, so always check the fare details before booking.

  • Where can I work out when at LAS?

    If you are feeling stressed, take advantage of the ZEROlevel Fitness Gym inside the airport to raise your mood. The gym features all the necessary equipment for your workout, including a sauna and shower. The gym is located at the Esplanade before security in terminal 1 and can be accessed by purchasing a day pass. Another option you can consider for maintaining fitness is taking advantage of the walking path around the airport. Take a jog on the 0.5 - 1.5 miles of FlyFit track which is located at gate E in terminal 3 and gates D, B/A, and Esplanade in terminal 1.

  • Are there any banking services at LAS?

    For passengers who need access to banking services, there is a Wells Fargo located in the shopping Esplanade at terminal 1. There are also a number of ATMs that you can use to withdraw cash with varied transaction rates. ATMs are located outside security at the Esplanade and baggage claim in terminal 1, gates D, C, B, and A. Additional ATMs can be found after security in terminal 1 at gate E or terminal 3 and at the rental car center. Currency exchange is available at the bank.

  • Does LAS have any airport lounges?

    There are two lounges in LAS terminal 1: The Centurion Lounge is close to gate D1 on concourse D and can be used by passengers who are in terminals 3 or 1. The Club LAS is also located in the same terminal on concourse D at Gate D16. In terminal 3 there are two lounges: The Club at LAS, which offers rest zones and showers, is located at gate E2 and the United Club which is located close to Gate 33-35 on concourse D. If you are a member of the United States Military, head to the USO lounges located all over the airport.

  • Where can I find spa, salon, and shower services in IAD?

    If you are looking for a place to freshen up while at the airport, head to Be Relax for salon and spa services. It is located on concourse B at gate A32. You can also take a shower at the British Airways and Air France-KLM lounges. At gate A20 on concourse A, there are places where you can get a massage to help you relax before your flight.

Your guide to booking Washington, D.C. Dulles Intl Airport to Las Vegas flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Saturday departure and avoid flying on Sunday. On this route, Saturday flights average $615, about $141 less than Sunday fares (19% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 7 weeks before you fly. On this route, that window historically saves about 34% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Washington, D.C. Dulles Intl Airport to Las Vegas trip for August. Fares historically average $421 return in that month – typically $617 less than the most expensive month, which is October (based on the last 12 months).
  • For the best chance of arriving on time, fly with United Airlines. Over the past three months, 90% of United Airlines flights from Washington, D.C. Dulles Intl Airport to Las Vegas arrived on time, slightly above the route average of 88%. When flights on this route arrive late, they're delayed by an average of 2h 52m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • If you have the time, taking a 1-stop flight through Orlando Airport (MCO) can be cheaper than flying direct. The cheapest stopover option averages $411 return on this route – about $306 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Las Vegas Harry Reid Intl Airport.

    • Four Seasons Hotel Las Vegas
    • Alexis Park All Suite Resort
    • Ellis Island Hotel
  • Dulles International Airport (IAD) has designated areas around the airport where you can enjoy your cigarette without disturbing the people around you. These locations are found close to gates D30, C2, B73, and B37.
  • If you head towards gates E, D, and C at Harry Reid International Airport (LAS) you will be able to find postal services where you can mail postcards to your friends and family.
  • If you are traveling with kids, the children's play area is located in terminal 1 on the D gates level 2 in LAS. Here, your kids can entertain themselves with a variety of activities before the flight.
  • If you are lost or need assistance, you will find the information desk for LAS at gate E in terminal 3 or at the baggage claim area in terminal 1.
  • Go to gate A32 on concourse A at IAD for a peaceful environment where you can meditate or pray. This interfaith chapel is a quiet oasis in the middle of the busy airport.

Prefer to fly direct from Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl?

 
Find which airlines fly direct from Washington, D.C. Dulles Intl Airport to Las Vegas Harry Reid Intl Airport, which days they fly and book direct flights.

Direct departures

Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl

Monday

Frontier,United Airlines

Frontier,United Airlines

Tuesday

Frontier,United Airlines

Frontier,United Airlines

Wednesday

Frontier,United Airlines

Frontier,United Airlines

Thursday

Frontier,United Airlines

Frontier,United Airlines

Friday

Frontier,United Airlines

Frontier,United Airlines

Saturday

Frontier,United Airlines

Frontier,United Airlines

Sunday

Frontier,United Airlines

Frontier,United Airlines

See more direct flights

Direct returns

Las Vegas Harry Reid Intl to Washington, D.C. Dulles Intl

Monday

Frontier,United Airlines

Frontier,United Airlines

Tuesday

Frontier,United Airlines

Frontier,United Airlines

Wednesday

Frontier,United Airlines

Frontier,United Airlines

Thursday

Frontier,United Airlines

Frontier,United Airlines

Friday

Frontier,United Airlines

Frontier,United Airlines

Saturday

Frontier,United Airlines

Frontier,United Airlines

Sunday

Frontier,United Airlines

Frontier,United Airlines

See more direct flights

More options for your flight from Dulles Intl to Las Vegas

Complete your trip to Las Vegas with a hotel stay or car hire