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Cheap flights from Las Vegas to Washington, D.C. Dulles Intl Airport from $47

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Las Vegas to Washington, D.C. Dulles Intl Airport departing on 5/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Las Vegas to Washington, D.C.

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Las Vegas to Washington, D.C..
Frontier Logo
11:00 pm - 6:31 amLAS-IAD
4h 31mnonstop
Frontier Logo
7:45 am - 10:00 amIAD-LAS
5h 15mnonstop
$95Frontier
Find Deal
Tue, May 6 - Sat, May 10
Frontier Logo
11:00 pm - 6:31 amLAS-IAD
4h 31mnonstop
Frontier Logo
7:45 am - 10:00 amIAD-LAS
5h 15mnonstop
$101Frontier
Find Deal
Tue, May 6 - Wed, May 7
Delta Logo
5:01 pm - 5:52 amLAS-IAD
9h 51m1 stop
Delta Logo
12:39 pm - 6:40 pmIAD-LAS
9h 01m1 stop
$257Delta
Find Deal
Sat, May 17 - Mon, May 19
Delta Logo
12:54 am - 11:16 amLAS-IAD
7h 22m1 stop
Delta Logo
6:25 am - 10:45 amIAD-LAS
7h 20m1 stop
$267Delta
Find Deal
Tue, May 20 - Wed, May 28
United Airlines Logo
12:59 am - 11:32 amLAS-IAD
7h 33m1 stop
United Airlines Logo
7:40 pm - 9:44 pmIAD-LAS
5h 04mnonstop
$293United Airlines
Find Deal
Tue, Jun 3 - Mon, Jun 9
Southwest Logo
6:15 am - 3:45 pmLAS-IAD
6h 30m1 stop
Southwest Logo
7:00 am - 4:15 pmIAD-LAS
12h 15m2 stops
$320Southwest
Find Deal
Mon, Aug 18 - Sat, Aug 23
United Airlines Logo
1:35 pm - 9:00 pmLAS-IAD
4h 25mnonstop
United Airlines Logo
8:40 am - 10:30 amIAD-LAS
4h 50mnonstop
$333United Airlines
Find Deal
Wed, May 28 - Wed, Jun 4
Southwest Logo
6:15 am - 3:45 pmLAS-IAD
6h 30m1 stop
Southwest Logo
7:00 am - 4:15 pmIAD-LAS
12h 15m2 stops
$344Southwest
Find Deal
Fri, Aug 8 - Sat, Aug 9
American Airlines Logo
12:59 am - 11:00 amLAS-IAD
7h 01m1 stop
American Airlines Logo
1:08 pm - 7:59 pmIAD-LAS
9h 51m1 stop
$363American Airlines
Find Deal
Mon, Jun 16 - Fri, Jun 20
American Airlines Logo
12:59 am - 1:22 pmLAS-IAD
9h 23m2 stops
American Airlines Logo
5:07 pm - 10:00 pmIAD-LAS
7h 53m1 stop
$368American Airlines
Find Deal
Tue, May 20 - Tue, May 27

Delta flights from Las Vegas to Washington, D.C. Dulles Intl Airport

Our best Delta deals on Las Vegas to Washington, D.C. Dulles Intl Airport flight tickets
Delta
May 17
LAS5:01 pmLas Vegas Harry Reid Intl
9h 51m
1 stop
IAD5:52 amWashington, D.C. Dulles Intl
May 19
IAD12:39 pmWashington, D.C. Dulles Intl
9h 01m
1 stop
LAS6:40 pmLas Vegas Harry Reid Intl
Delta
May 20
LAS12:54 amLas Vegas Harry Reid Intl
7h 22m
1 stop
IAD11:16 amWashington, D.C. Dulles Intl
May 28
IAD6:25 amWashington, D.C. Dulles Intl
7h 20m
1 stop
LAS10:45 amLas Vegas Harry Reid Intl
Delta
May 27
LAS12:54 amLas Vegas Harry Reid Intl
7h 22m
1 stop
IAD11:16 amWashington, D.C. Dulles Intl
Jun 4
IAD6:25 amWashington, D.C. Dulles Intl
7h 20m
1 stop
LAS10:45 amLas Vegas Harry Reid Intl

Sun Country Air flights from Las Vegas to Washington, D.C. Dulles Intl Airport

Our best Sun Country Air deals on Las Vegas to Washington, D.C. Dulles Intl Airport flight tickets
Sun Country Air
May 8
LAS6:43 pmLas Vegas Harry Reid Intl
14h 40m
1 stop
IAD12:23 pmWashington, D.C. Dulles Intl
May 11
IAD8:30 amWashington, D.C. Dulles Intl
26h 03m
1 stop
LAS7:33 amLas Vegas Harry Reid Intl
Sun Country Air
May 29
LAS11:59 pmLas Vegas Harry Reid Intl
8h 54m
1 stop
IAD11:53 amWashington, D.C. Dulles Intl
Jun 15
IAD7:45 amWashington, D.C. Dulles Intl
17h 57m
1 stop
LAS10:42 pmLas Vegas Harry Reid Intl
Sun Country Air
May 7
LAS6:43 pmLas Vegas Harry Reid Intl
14h 04m
1 stop
IAD11:47 amWashington, D.C. Dulles Intl
May 11
IAD8:30 amWashington, D.C. Dulles Intl
12h 16m
1 stop
LAS5:46 pmLas Vegas Harry Reid Intl

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Las Vegas to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

In general, May is the cheapest month to fly from Las Vegas to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $382. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of May, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $394.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Wednesday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $456. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Las Vegas to Washington, D.C. Dulles Intl Airport for around $688.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Las Vegas in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $377 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $687 on average. Flights to Washington, D.C. Dulles Intl Airport from Las Vegas in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Las Vegas Harry Reid Intl to Washington, D.C. Dulles Intl flight route?

Fly from Las Vegas Harry Reid Intl to Washington, D.C. Dulles Intl for the best Las Vegas Harry Reid Intl - Washington, D.C. Dulles Intl flight prices

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Las Vegas when booking 19 weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $441 when searching 19 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Las Vegas for as low as $236 on momondo.

What cabin class options are available on Las Vegas Harry Reid Intl to Washington, D.C. Dulles Intl flights?

There are 4 cabin classes available to choose from on Las Vegas Harry Reid Intl to Washington, D.C. Dulles Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Las Vegas to Washington, D.C. Dulles Intl Airport flight prices changed over time?

As of April 2025, prices for Las Vegas to Washington, D.C. Dulles Intl Airport flights are approximately 31% cheaper when compared to flights at the same time last year.

When to book flights from Las Vegas to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Las Vegas to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Las Vegas to Washington, D.C. Dulles Intl Airport (LAS to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Las Vegas to Washington, D.C. Dulles Intl Airport

Best Price Found

$47

Fastest flight time

4h 25m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Las Vegas in the past 72 hours is $47. The best round-trip flight deal from Las Vegas to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $95.
The fastest flight from Las Vegas to Washington, D.C. Dulles Intl Airport takes 4h 25m
Direct flights go from Las Vegas to Washington, D.C. Dulles Intl Airport every day.

  • How far is Las Vegas Harry Reid Intl to Washington, D.C. Dulles Intl by plane?

    There are 2056.9 mi between Las Vegas Harry Reid Intl and Washington, D.C. Dulles Intl. By plane, this route typically takes 4h 25m.

  • When did momondo last update prices for flights from Las Vegas Harry Reid Intl Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Las Vegas Harry Reid Intl Airport to Washington, D.C. Dulles Intl Airport are updated daily.

  • How many operators does momondo search for flights from Las Vegas Harry Reid Intl Airport to Washington, D.C. Dulles Intl Airport?

  • How old do you have to be to fly from Las Vegas Harry Reid Intl Airport to Washington, D.C. Dulles Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Las Vegas Harry Reid Intl Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents required for your trip to Washington, D.C. Dulles Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C. Dulles Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Las Vegas to Washington, D.C. Dulles Intl Airport?

  • What is the most popular airline from Las Vegas to Washington, D.C. Dulles Intl Airport?


Best airlines flying from Las Vegas to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Las Vegas to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $153Free CancellationRating
5.9
3,283 reviews
Search Frontier flights
DeltaPriceFrom $288Free CancellationRating
8.0
7,920 reviews
Search Delta flights
United AirlinesPriceFrom $290Free CancellationRating
7.4
8,685 reviews
Search United Airlines flights
SouthwestPriceFrom $332Free CancellationRating
8.0
4,287 reviews
Search Southwest flights
American AirlinesPriceFrom $368Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
  • United Airlines Flights From Las Vegas to Washington, D.C. Dulles Intl Airport

    United Airlines flight deals from Las Vegas to Washington, D.C. Dulles Intl Airport start from $290 round-trip. Over the 36 United Airlines flights for this route in a normal week, average airfare is usually $464 round-trip - but some users have found much cheaper deals with momondo.


Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Arlington
Gettysburg
National Harbor
Laurel
Winchester
Silver Spring
Woodbridge
Tysons
Fredericksburg
Waldorf
Manassas
Harpers Ferry
Gaithersburg
Rockville
Glen Burnie
Towson
Linthicum Heights
Fairfax
Reston

Why use momondo?

Why should I use momondo to find a flight deal from Las Vegas to Washington, D.C.?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Las Vegas to Washington, D.C. for you.

Can I find flights from Las Vegas to Washington, D.C. with flexible booking policies on momondo?

Yes. All flights to Washington, D.C. from Las Vegas on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Las Vegas to Washington, D.C.?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Las Vegas to Washington, D.C..

I’m not ready to book a flight from Las Vegas to Washington, D.C. right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Las Vegas to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.


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