IAD - LAS

$84 Find Cheap Flights from Washington Dulles Airport to Las Vegas - Compare and Save

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Everything you should know

Cheapest round-trip
$160
Typical prices: $350-$625
Frontier
Thu 9/20Tue 9/25
IAD - LAS • Non-stop
Cheapest one-way
$84
Typical prices: $171-$338
Frontier
Sun 10/7
IAD - LAS • Non-stop
Nonstop flights
You can fly direct with United Airlines and Frontier. Average duration is 5h 07m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 89% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travelers 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 layover airports
Cheapest • Avg $278 (round-trip)
Shortest trip • 7h 16m (one-way)
Insights
Insights
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We hope you love your trip to Las Vegas!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Dulles Intl to Las Vegas (IAD-LAS)

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

Recent round-trip flight deals from Dulles Intl to Las Vegas

Sun, Sep 20 - Fri, Sep 25
Frontier Logo
6:00 am - 7:58 amIAD  Washington, D.C. Dulles Intl-LAS Las Vegas Harry Reid Intl
4h 58mnonstop
Frontier Logo
10:46 pm - 6:20 amLAS  Las Vegas Harry Reid Intl-IAD Washington, D.C. Dulles Intl
4h 34mnonstop
$160Frontier
Fri, Sep 18 - Wed, Sep 23
Frontier Logo
6:00 am - 7:58 amIAD  Washington, D.C. Dulles Intl-LAS Las Vegas Harry Reid Intl
4h 58mnonstop
Frontier Logo
12:59 am - 11:33 amLAS  Las Vegas Harry Reid Intl-IAD Washington, D.C. Dulles Intl
7h 34m1 stop Dallas/Fort Worth
$161Frontier
Tue, Sep 15 - Tue, Sep 22
Multiple Airlines Logo
9:03 am - 4:24 pmIAD  Washington, D.C. Dulles Intl-LAS Las Vegas Harry Reid Intl
10h 21m1 stop Seattle/Tacoma Intl
Multiple Airlines Logo
10:46 pm - 6:20 amLAS  Las Vegas Harry Reid Intl-IAD Washington, D.C. Dulles Intl
4h 34mnonstop
$253Multiple Airlines
Sun, Oct 4 - Wed, Oct 7
Multiple Airlines Logo
12:40 pm - 5:27 pmIAD  Washington, D.C. Dulles Intl-LAS Las Vegas Harry Reid Intl
7h 47m1 stop Minneapolis St Paul
Multiple Airlines Logo
10:46 pm - 6:20 amLAS  Las Vegas Harry Reid Intl-IAD Washington, D.C. Dulles Intl
4h 34mnonstop
$257Multiple Airlines
Sat, Sep 26 - Sat, Oct 3
Alaska Airlines Logo
7:00 am - 3:32 pmIAD  Washington, D.C. Dulles Intl-LAS Las Vegas Harry Reid Intl
11h 32m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
7:04 am - 5:50 pmLAS  Las Vegas Harry Reid Intl-IAD Washington, D.C. Dulles Intl
7h 46m1 stop San Diego
$337Alaska Airlines
Mon, Oct 5 - Sat, Oct 10
Alaska Airlines Logo
7:02 am - 1:25 pmIAD  Washington, D.C. Dulles Intl-LAS Las Vegas Harry Reid Intl
9h 23m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
7:01 am - 5:50 pmLAS  Las Vegas Harry Reid Intl-IAD Washington, D.C. Dulles Intl
7h 49m1 stop San Diego
$337Alaska Airlines
Sat, Nov 14 - Wed, Nov 18
United Airlines Logo
9:00 am - 11:22 amIAD  Washington, D.C. Dulles Intl-LAS Las Vegas Harry Reid Intl
5h 22mnonstop
United Airlines Logo
7:45 am - 3:13 pmLAS  Las Vegas Harry Reid Intl-IAD Washington, D.C. Dulles Intl
4h 28mnonstop
$357United Airlines
Thu, Nov 12 - Tue, Nov 17
United Airlines Logo
5:40 pm - 7:58 pmIAD  Washington, D.C. Dulles Intl-LAS Las Vegas Harry Reid Intl
5h 18mnonstop
United Airlines Logo
11:45 pm - 7:07 amLAS  Las Vegas Harry Reid Intl-IAD Washington, D.C. Dulles Intl
4h 22mnonstop
$357United Airlines
Mon, Feb 8 - Mon, Feb 22
American Airlines Logo
6:10 am - 4:30 pmIAD  Washington, D.C. Dulles Intl-LAS Las Vegas Harry Reid Intl
13h 20m1 stop Los Angeles
American Airlines Logo
2:22 pm - 5:00 amLAS  Las Vegas Harry Reid Intl-IAD Washington, D.C. Dulles Intl
11h 38m1 stop Los Angeles
$363American Airlines
Wed, Dec 9 - Wed, Dec 16
American Airlines Logo
6:00 am - 3:42 pmIAD  Washington, D.C. Dulles Intl-LAS Las Vegas Harry Reid Intl
12h 42m1 stop Los Angeles
American Airlines Logo
2:50 pm - 5:38 amLAS  Las Vegas Harry Reid Intl-IAD Washington, D.C. Dulles Intl
11h 48m1 stop Los Angeles
$363American 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 from Washington, D.C. Dulles Intl Airport to Las Vegas with more confidence.

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

Round-trip flights from Washington, D.C. Dulles Intl Airport to Las Vegas start at $160. Prices are below average for this route right now, with typical round-trip fares ranging from $350 to $625. The lowest price found in the past 5 days was $160 on Frontier.

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

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

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 $293 round-trip.
  • October ($723) and March ($585) 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 prices 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.

Expert advice

Expert advice for your flight from Dulles Intl to Las Vegas

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines, Frontier and IAD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Harriet Baskas

Harriet Baskas

Expert on 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.

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

Low season

February

Cheapest flight

$84
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 7% lower on average.
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 round-trip price

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

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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.

  • 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.

  • What airlines are available 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 nonstop flights on this route include:
    • United Airlines
    • Frontier

  • 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).

  • 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

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

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

    Four cabin classes are available on flights from Washington, D.C. Dulles Intl Airport to Las Vegas:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

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

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $278 round-trip via Boston Logan Intl (BOS), compared to $499 for nonstop.

  • 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 $31–$100 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 Airbus A321neo variants.

  • 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) - 46% of one-stop connections
    • Denver Intl (DEN) - 16% of one-stop connections
    • Dallas/Fort Worth (DFW) - 13% of one-stop connections
    • Charlotte Douglas (CLT) - 4% of one-stop connections

    Atlanta Hartsfield-Jackson (ATL) handles the largest share of one-stop connections on this route.

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

    On the Washington, D.C. Dulles Intl Airport to Las Vegas route, being flexible with your departure day can save you up to 19%. Saturday is the cheapest day at $428 round-trip on average, while Sunday is the most expensive at $526: a $98 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • At what point is a flight considered delayed 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, 13% of flights were delayed in the past 3 months, with delays averaging 1 hour 27 minutes.

  • 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 75% of flights leaving in that window. Evening departures account for 25%, afternoon flights for 0%, and night flights for 0%.

  • What popular places can I visit in Las Vegas?

    Some of the most popular sights in Las Vegas are Fremont Street Experience, The Venetian and Las Vegas Convention Center. These are among the most viewed places in Las Vegas on KAYAK.

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

    A nonstop flight from Washington, D.C. Dulles Intl Airport to Las Vegas takes 5h 07m, covering 2,059 miles.

  • 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 6:00 am and lands at 11:07 am
    • Latest: departs at 6:00 pm and lands at 11:07 pm.

    The flight takes about 5h 07m.

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

    Last-minute fares on this route - booked within 2 weeks of departure - run 29% above the route average of $484. Book 7 weeks before departure for the lowest fares.

  • 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 a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • 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 $146, which is 40% below the typical average for this route.

  • How do delay rates compare for morning and evening flights from Washington, D.C. Dulles Intl Airport to Las Vegas?

    Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

  • How much time can I save by choosing a different layover 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 at 7h 16m, compared with 7h 21m via Los Angeles (LAX) 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 car rental options are available at Las Vegas Harry Reid Intl Airport (LAS)?

    Las Vegas Harry Reid Intl Airport (LAS) hosts 5 major car rental companies, with daily rates starting from around $8 for economy cars. Top options include:
    · Easirent
    · Ace
    · Fox
    · Dollar
    · Thrifty

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

    Round-trip flights from Washington, D.C. Dulles Intl Airport to Las Vegas range from $350 to $625, with an average of $484 over the past 12 months. Anything below $350 counts as a good deal.

  • 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.

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 can be flexible, aim for a Saturday departure instead of Sunday. On this route, Saturday flights average $428 - about $98 less than Sunday (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 $293 round-trip in that month - typically $430 less than the most expensive month, which is October (based on the last 12 months).
  • If arriving on time is high on your priority list, United Airlines is the strongest pick on this route. 89% of United Airlines flights from Washington, D.C. Dulles Intl Airport to Las Vegas arrived on time in the past 3 months, slightly above the route's average on-time arrival rate of 87%. When flights on this route do arrive late, the average delay is 1 hour 27 minutes, so choosing a carrier with strong on-time performance can make a difference on tight schedules.
  • If you have the time, taking a 1-stop flight through Boston Logan Intl Airport (BOS) can be cheaper than flying direct. The cheapest layover option averages $278 round-trip on this route - about $221 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.
    - Ellis Island Hotel
    - The Reserve at Park MGM
    - Silver Sevens Hotel and Casino, a Wyndam Garden
  • 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 Dulles Airport to Las Vegas?

 
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

Everything you need to know for your flight from Dulles Intl to Las Vegas

Information on your arrival and departure airports