88 € Cheap Flights from Harry Reid International to Washington Dulles

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Flight deals from Harry Reid International to Washington Dulles

Looking for a cheap last-minute deal or the best return flight from Harry Reid International Airport to Washington Dulles Airport? If you want to travel next month, return fares start from 88 €. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Harry Reid International to Washington Dulles

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

Direct flights from Harry Reid International to Washington Dulles

Harry Reid International to Washington Dulles: Alternative routes

Compare routes from Harry Reid International 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 found88 €
Cheapest month to flyAugust
Average flight time4 hrs, 31 mins
Most popular airlineUnited
Average flights per week54

Finding cheap flights from Harry Reid International to Washington Dulles: Frequently asked questions

The best price we found for a return flight from Harry Reid International to Washington Dulles is 88 €. 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.
4 hours and 31 minutes is the average flight time from Harry Reid International to Washington Dulles.
United, Frontier Airlines and Austrian Airlines fly direct from Harry Reid International to Washington Dulles.
As of July 2026, there are 54 flights per week flying from Harry Reid International to Washington Dulles.
The cheapest month to fly from Harry Reid International to Washington Dulles is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Harry Reid International Airport to Washington Dulles Airport on Thursday, 13 August 2026.
Yes – the average flight time is 4 hours and 31 minutes.
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.

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.

Currently, Frontier Airlines offers the cheapest flight tickets to Washington Dulles.

Flying from Harry Reid International Airport (LAS) to Washington Dulles Airport (IAD): what you need to know

  • Book a direct flight from Harry Reid International Airport to Washington Dulles Airport and you'll be in the air for an average of 4 hours 30 minutes.

  • Washington DC is three hours ahead of Las Vegas and is in the UTC-5 timezone.

  • Take your pick of 19 weekly Harry Reid International Airport to Washington Dulles Airport flights. The 07:00 departure with United Airlines is the earliest flight you can take. United Airlines operates the latest service of the day at 23:55.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for hassle-free flying. Show up at the airport on time to board your LAS to IAD flight.

  • During popular months like April, it's a good idea to get to the airport even earlier. Arrive two hours before domestic departures and four hours ahead for an international flight when you fly during peak periods in general.

  • United is your gateway to exploring Washington DC (and perhaps some other great corners of the United States!). Check out the direct flights from Harry Reid International Airport to Washington Dulles Airport offered by this popular carrier.

  • The airline that tops the list for bookings on this route is United.

  • United is a leader in on-time performance for LAS to IAD flights, with 87.78% of its services landing as scheduled.

  • If you want to include a stop along the way, simply deselect 'Direct flights only' when searching for your ticket from Harry Reid International Airport to Washington Dulles Airport. These are the top stopovers between LAS and IAD:

    • Denver International Airport

    • Detroit Wayne County Airport

    • Milwaukee General Mitchell Airport

How to find the cheapest flights from Harry Reid International Airport (LAS) to Washington Dulles Airport (IAD)

  • 51 € is the best price for a one-way Harry Reid International Airport to Washington Dulles Airport flight. A return flight starts from 88 €. These fares may change depending on demand and availability.

  • Book one month before your departure date. After crunching the numbers on our calendar, this is how far you'll want to book ahead to find cheap tickets from LAS to IAD.

  • Plan your trip for June. That's the cheapest month for flights from Harry Reid International Airport to Washington Dulles Airport. If you're flexible with your travel dates, use the 'Whole month' tool to see the cheapest airfare across each month.

  • Spend less time searching for cheap flights from LAS to IAD by creating a Price Alert. We'll send you an email or push notification on the app when a lower fare becomes available.

  • Lock in the ideal flight for you by using the filters. To see the 'Fastest,' 'Cheapest' or 'Best' flights from Harry Reid International Airport to Washington Dulles Airport, use the 'Sort by' tool. You can also filter results by airline, arrival and departure times, and number of stops.

Handy information about Harry Reid International Airport (LAS)

  • LAS is located at 5757 Wayne Newton Boulevard.

  • Of all flights leaving Harry Reid International Airport, 79% arrive on time at their destination.

  • To get to Harry Reid International Airport from central Las Vegas, it'll take around 10 minutes by car. Of course, this depends on traffic. It's approximately 8 kilometres from the airport to the city centre.

  • Planning to take public transport? You can expect a journey time of around 25 minutes.

  • Need a handy hotel near LAS? If you're catching an early flight from Harry Reid International Airport to Washington Dulles Airport, these stays will put you moments from your check-in counter:

Arriving at Washington Dulles Airport (IAD)

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

  • The address for IAD is 1 Saarinen Circle.

  • Washington Dulles Airport to the centre of Washington DC has a drive time of about 45 minutes. It's approximately 40 kilometres away.

  • If you're travelling on public transport, expect a journey of around 1 hour 10 minutes.

When to fly to Washington Dulles Airport (IAD)

  • It's time to pick your dates for your flight from Harry Reid International Airport to Washington Dulles Airport. July is the most popular month to visit Washington DC. If you like a more laid-back vibe, go in February.

  • Before locking in your flight from Harry Reid International Airport to Washington Dulles Airport, consider the type of weather you like. July is the warmest month in Washington DC, with the temperature ranging from 19ºC (66ºF) to 33ºC (91ºF).

  • If you want to travel in cooler conditions, look for a cheap ticket from LAS to IAD in January. Average temperatures are between -6ºC (21ºF) and 10ºC (50ºF) then.

Explore more of the United States

  • New York is just one of the many places in the United States waiting to be discovered once you've seen the sights of Washington DC. Around 322 kilometres away to the north-east, top sights here include Central Park, Statue of Liberty and Metropolitan Museum of Art.

  • Philadelphia is another must-experience destination in the United States and is around 193 kilometres north-east of Washington DC. No trip is complete without experiencing Independence Hall, Liberty Bell and Philadelphia Museum of Art.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.