Cheap Flights from Las Vegas to Washington Dulles

Compare Las Vegas to Washington Dulles flight deals

Find the cheapest month or even day of the year to fly to Washington Dulles

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Flight deals from Las Vegas to Washington Dulles Airport

Looking for a cheap last-minute deal or the best return flight from Las Vegas to Washington Dulles Airport? If you want to travel next month, return fares start from Rs55,232. Find the lowest prices on one-way and return tickets right here.

Washington D.C..Rs19,200 per passenger.Departing Tue, 28 Apr.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Harry Reid International on Tue, 28 Apr, arriving in Washington Dulles.Price includes taxes and charges.From Rs19,200, select.

Washington D.C..Rs21,507 per passenger.Departing Tue, 5 May.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Harry Reid International on Tue, 5 May, arriving in Washington Dulles.Price includes taxes and charges.From Rs21,507, select.

Washington D.C..Rs33,232 per passenger.Departing Wed, 27 May.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Harry Reid International on Wed, 27 May, arriving in Washington Dulles.Price includes taxes and charges.From Rs33,232, select.

Washington D.C..Rs36,099 per passenger.Departing Thu, 11 Jun.One-way flight with Allegiant Air.Outbound indirect flight with Allegiant Air, departs from Harry Reid International on Thu, 11 Jun, arriving in Washington Dulles.Price includes taxes and charges.From Rs36,099, select.

Washington D.C..Rs36,172 per passenger.Departing Tue, 24 Mar.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Harry Reid International on Tue, 24 Mar, arriving in Washington Dulles.Price includes taxes and charges.From Rs36,172, select.

Washington D.C..Rs38,867 per passenger.Departing Tue, 14 Jul.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Harry Reid International on Tue, 14 Jul, arriving in Washington Dulles.Price includes taxes and charges.From Rs38,867, select.

Washington D.C..Rs43,318 per passenger.Departing Wed, 12 Aug.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Harry Reid International on Wed, 12 Aug, arriving in Washington Dulles.Price includes taxes and charges.From Rs43,318, select.

Washington D.C..Rs52,464 per passenger.Departing Tue, 23 Jun.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Harry Reid International on Tue, 23 Jun, arriving in Washington Dulles.Price includes taxes and charges.From Rs52,464, select.

Washington D.C..Rs52,464 per passenger.Departing Tue, 21 Jul.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Harry Reid International on Tue, 21 Jul, arriving in Washington Dulles.Price includes taxes and charges.From Rs52,464, select.

Washington D.C..Rs53,177 per passenger.Departing Mon, 13 Apr.One-way flight with United.Outbound direct flight with United departs from Harry Reid International on Mon, 13 Apr, arriving in Washington Dulles.Price includes taxes and charges.From Rs53,177, select.

Washington D.C..Rs53,622 per passenger.Departing Fri, 4 Sep.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Harry Reid International on Fri, 4 Sep, arriving in Washington Dulles.Price includes taxes and charges.From Rs53,622, select.

Washington D.C..Rs59,718 per passenger.Departing Thu, 8 Oct.One-way flight with Sun Country Airlines.Outbound indirect flight with Sun Country Airlines, departs from Harry Reid International on Thu, 8 Oct, arriving in Washington Dulles.Price includes taxes and charges.From Rs59,718, select.

Washington D.C..Rs71,913 per passenger.Departing Sun, 6 Sep.One-way flight with United.Outbound direct flight with United departs from Harry Reid International on Sun, 6 Sep, arriving in Washington Dulles.Price includes taxes and charges.From Rs71,913, select.

Washington D.C..Rs71,913 per passenger.Departing Fri, 23 Oct.One-way flight with United.Outbound direct flight with United departs from Harry Reid International on Fri, 23 Oct, arriving in Washington Dulles.Price includes taxes and charges.From Rs71,913, select.

Washington D.C..Rs72,310 per passenger.Departing Thu, 6 Aug.One-way flight with United.Outbound direct flight with United departs from Harry Reid International on Thu, 6 Aug, arriving in Washington Dulles.Price includes taxes and charges.From Rs72,310, select.

Washington D.C..Rs77,807 per passenger.Departing Mon, 28 Dec.One-way flight with Delta.Outbound indirect flight with Delta, departs from Harry Reid International on Mon, 28 Dec, arriving in Washington Dulles.Price includes taxes and charges.From Rs77,807, select.

Find the cheapest month to fly from Las Vegas to Washington Dulles

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Las Vegas to Washington Dulles flights are currently cheapest in April.

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Direct flights from Las Vegas to Washington Dulles

Las Vegas to Washington Dulles: Alternative routes

Compare routes from Las Vegas to Washington D.C. below. You may find an airport to fly into that's cheaper, faster, or easier than Washington Dulles.

Las Vegas to Washington D.C.: Flight information

The things to know before you go.

Cheapest flight found	Rs19,200
Cheapest month to fly	April
Average flight time	4 hrs, 32 mins
Most popular airline	United
Average flights per week	138

Check out these Washington D.C. hotels

Ready to plan your stay? Other travellers rate these Washington D.C. hotels for cleanliness, service and location.

Swann House

1.61 km from city centre

Rs166,611

Per night

The Fairmont Washington DC

1.72 km from city centre

Rs118,479

Per night

Fairmont Washington, D.C., Georgetown

1.71 km from city centre

Rs111,074

Per night

Swann House

1.61 km from city centre

Rs166,611

Per night

The Fairmont Washington DC

1.72 km from city centre

Rs118,479

Per night

Fairmont Washington, D.C., Georgetown

1.71 km from city centre

Rs111,074

Per night

Explore top-rated hotels

Finding cheap flights from Las Vegas to Washington Dulles: Frequently asked questions

How much are return flights from Las Vegas to Washington Dulles?

The best price we found for a return flight from Las Vegas to Washington Dulles is Rs55,232. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Las Vegas to Washington Dulles?

4 hours and 32 minutes is the average flight time from Las Vegas to Washington Dulles.

Which airlines fly direct from Las Vegas to Washington Dulles?

United, Brussels Airlines and Austrian Airlines fly direct from Las Vegas to Washington Dulles.

How many flights are there a week from Las Vegas to Washington Dulles?

As of March 2026, there are 46 flights per week flying from Las Vegas to Washington Dulles.

When is the cheapest time to fly from Las Vegas to Washington Dulles?

The cheapest month to fly from Las Vegas to Washington Dulles is usually April.

Which upcoming date is cheapest to fly from Las Vegas to Washington Dulles Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Las Vegas to Washington Dulles Airport on Tuesday, 14 April 2026.

Can I get a direct flight from Las Vegas to Washington Dulles Airport?

Yes – the average flight time is 4 hours and 32 minutes.

How can I find the best flight deal to Washington Dulles?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Washington Dulles but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Washington D.C.?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Washington D.C. is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Las Vegas to Washington Dulles with?

The cheapest airline that flies to Washington Dulles is Frontier Airlines .

Travelling from Las Vegas to Washington Dulles International Airport (IAD): What you need to know

Your next big escape starts at Las Vegas's main airport, Las Vegas Harry Reid International Airport (LAS). Explore the options for catching a flight from Las Vegas to Washington Dulles International Airport (IAD) departing from this terminal.
Take a direct Las Vegas to Washington Dulles International Airport flight and you'll be in the air for around 4 hours 25 minutes.
Washington Dulles International Airport is located in Washington DC. The city follows the UTC-5 timezone and is three hours ahead of Las Vegas.
With 21 direct flights a week between the two airports, Las Vegas Harry Reid International Airport (LAS) to Washington Dulles International Airport (IAD) is the busiest route. United Airlines operates the earliest flight at 7am. If you prefer to get more out of your day before flying, the last departure from LAS to IAD is with United Airlines at 11:55pm.
Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Be at the airport with enough time to board your flight from Las Vegas to IAD.
With more travellers during busy periods like March, get to the terminal earlier than usual. Two hours for domestic flights and as much as four for international journeys will allow for extra wait times. Remember things also get busy during major holidays like Christmas and local events or festivals.

Airports in Las Vegas

Las Vegas Harry Reid International Airport (LAS)

Reach your destination without the detour from Las Vegas Harry Reid International Airport (LAS). Direct flights from Las Vegas to Washington Dulles International Airport (IAD) can be booked from here.
When departing from LAS, you can take a direct flight from Las Vegas to Washington Dulles International Airport with United Airlines.
United is the most frequently booked airline offering flights from LAS to IAD.
With an impressive 87.78% of services arriving on schedule, United is the most punctual carrier operating on this route.
Located around 8 kilometres from central Las Vegas, LAS can be reached in about 10 minutes by car, depending on traffic. The journey on public transport takes roughly 25 minutes.
Have an early flight from Las Vegas to Washington Dulles International Airport? Avoid the last-minute rush to the terminal (and get some bonus sleep) by choosing one of these stays near Las Vegas Harry Reid International Airport:
When it comes to Las Vegas Harry Reid International Airport's on-time performance, data shows 79% of flights meet their scheduled arrival time.
LAS is located at 5757 Wayne Newton Boulevard.

About Washington Dulles International Airport (IAD)

Book a hotel near IAD if you're catching a late flight from Las Vegas to Washington Dulles International Airport. Settle into one of these accommodation options and be in bed in no time flat:
Booking your ride around one week ahead of your Las Vegas to Washington Dulles International Airport flight can help you score a better rate.
You'll find IAD at 1 Saarinen Circle.

Getting from Washington Dulles International Airport (IAD) to central Washington DC

Washington Dulles International Airport is around 40 kilometres from the centre of Washington DC. It takes around 45 minutes or so to drive to the city.
Travelling on public transport will take you roughly 1 hour 10 minutes.

How to find the cheapest flights from Las Vegas to Washington Dulles International Airport (IAD)

Rs19,200 is currently the lowest price for a one-way ticket from Las Vegas to Washington Dulles International Airport. A return flight starts from Rs55,232. These fares may change depending on demand and availability.
Book one month before you want to travel. Pricing trends show that this is the ideal window for finding cheap flights from Las Vegas to IAD.
The best month for finding cheap Las Vegas to Washington Dulles International Airport tickets is June. Use the 'Whole month' tool to compare prices, then choose the dates offering the lowest fares.
Never miss a deal on plane tickets from Las Vegas to IAD by setting up a Price Alert. We'll send you an email or notification through the app when prices go down.
Tailor your trip using filters. Choose your ideal arrival and departure times, airlines and total journey duration. You can also sort your results by 'Cheapest,' 'Fastest' or 'Best' flights from Las Vegas to Washington Dulles International Airport.

The best time to fly from Las Vegas to Washington Dulles International Airport (IAD)

February is the quietest month for flights from Las Vegas to Washington Dulles International Airport (IAD), while June is the most popular. Find the ideal time to go to Washington DC based on whether you want a laid-back vibe or a more bustling atmosphere.
Before locking in your Las Vegas to IAD plane ticket, consider the weather you're most comfortable in. July is the warmest month in Washington DC, with temperatures ranging from 19ºC to 33ºC.
January sees temperatures of between -6ºC and 10ºC. Look for cheap tickets from Las Vegas to Washington Dulles International Airport around that time if you like travelling in cooler conditions.

More about Washington DC

When it comes to looking for somewhere to rest your head, you'll find the best places to stay in Washington DC right here. Browse these options after you've booked your flight from Las Vegas to Washington Dulles International Airport:
Your visit to Washington DC isn't complete without checking out the sights. Leading attractions that belong on your itinerary include Lincoln Memorial, The White House and Smithsonian National Museum of Natural History.

Explore more of the United States

Washington DC is easy to fall in love with, but there are so many other corners of the United States just waiting to be discovered. Around 225 kilometres northeast of Washington DC, a visit to Philadelphia will keep your itinerary packed. Start with leading sights like Independence Hall, Liberty Bell and Philadelphia Museum of Art.
Around 274 kilometres southeast of Washington DC, Virginia Beach is another essential stop in the United States. Get a taste of what this destination has to offer at Virginia Beach Boardwalk, Resort Beach and Neptune's Park.