Cheap Flights from Las Vegas (LAS) to Washington (IAD)

You can find cheap one-way flights from AU$185 and cheap return flights AU$370 LAS to IAD with Expedia. Return flights often range between AU$703 and AU$2,827. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when LAS to IAD ticket fares go up or down.

The cheapest months to fly from LAS to IAD are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.

There are 2 airlines offering direct flights from Las Vegas, NV (LAS-Harry Reid Intl.) to Washington, DC (IAD-Washington Dulles Intl.). Here are the carriers:
* United operates 23 direct flights from Las Vegas, NV (LAS-Harry Reid Intl.) to Washington, DC (IAD-Washington Dulles Intl.) every week.
* Frontier Airlines operates 7 direct flights from Las Vegas, NV (LAS-Harry Reid Intl.) to Washington, DC (IAD-Washington Dulles Intl.) every week.

To find a cheap flight from Las Vegas, NV (LAS-Harry Reid Intl.) to Washington, DC (IAD-Washington Dulles Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

The best airline to fly with from Las Vegas, NV (LAS-Harry Reid Intl.) to Washington, DC (IAD-Washington Dulles Intl.) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, Frontier Airlines typically offers the lowest fares. United offers the most daily flights from Las Vegas, NV (LAS-Harry Reid Intl.) to Washington, DC (IAD-Washington Dulles Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.

The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.

You'll find around 4 nonstop flights per day from Las Vegas, NV (LAS-Harry Reid Intl.) to Washington, DC (IAD-Washington Dulles Intl.). For even more choices, look at flights that include layovers, as there are approximately 124 connecting flights per day. Some common connection points include Los Angeles Intl. (LAX), San Francisco Intl. (SFO), and Seattle - Tacoma Intl. (SEA).

The earliest flight from Las Vegas, NV (LAS-Harry Reid Intl.) to Washington, DC (IAD-Washington Dulles Intl.) typically departs around 12:05 AM local time. This flight is operated by Delta. This is a seasonal service, active in August. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

You'll typically find the most flights from Harry Reid International Airport (LAS) to Washington Dulles International Airport (IAD) on a Sunday, with around 87 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United, Alaska Airlines, and Delta. Flight schedules are fairly consistent throughout the week, with Sunday offering only slightly more options compared to other days.

The most popular departure times for flights from Las Vegas, NV (LAS-Harry Reid Intl.) to Washington, DC (IAD-Washington Dulles Intl.) are in the early morning, from 6am to 9am. Many major carriers, including United, American Airlines and Delta, offer flights during this window. Many travellers prefer these times because it allows for an early start to their journey, getting them to their destination with plenty of time left in the day.

A direct flight from Las Vegas, NV (LAS-Harry Reid Intl.) to Washington, DC (IAD-Washington Dulles Intl.) typically takes around 4 hours 30 minutes, covering a distance of about 3,317 kilometers. If you opt for a flight with one stop, your journey will be longer, usually taking around 7 hours 30 minutes. Flights with two or more stops generally take about 10 hours 30 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some extra time when planning your trip.

You can fly business class or first class between LAS and IAD. You can fly business class with Frontier Airlines and Delta.

First class cabins are available on Alaska Airlines, United, Delta, and American Airlines.

It's easy to earn miles on a Las Vegas, NV (LAS) to Washington, DC (IAD) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

If you're planning to travel to Washington from Harry Reid International Airport (LAS), you can fly directly into Washington Dulles International Airport (IAD). Some flights may connect through major hubs like Portland International (PDX), San Diego International (SAN), or Los Angeles International (LAX) before reaching Washington. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Typically, booking a last minute flight from Las Vegas, NV (LAS) to Washington, DC (IAD) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Securing a Las Vegas, NV (LAS) to Washington, DC (IAD) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

If you booked your Las Vegas, NV (LAS-Harry Reid Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.