Cheap flights from Las Vegas to Washington, D.C. from $43

The month of August is, on average, the cheapest month to fly to Washington, D.C. from Las Vegas, with most prices found around $369. If you’re not able to fly to Washington, D.C. in August, then January is your next best option. Flight prices from Las Vegas to Washington, D.C. during January average around $401.

On average, the least expensive day to fly to Washington, D.C. from Las Vegas is on a Thursday. momondo users have found tickets for Thursday departures for as low as $496. However, this price may fluctuate depending on the airline, the season, and holidays. 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. for around $746.

In the evening is the cheapest time of day to fly from Las Vegas to Washington, D.C. when you can find flight prices for as low as $416. Flying to Washington, D.C. in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $623. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Washington, D.C. from Las Vegas when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $434 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Las Vegas for as low as $303 on momondo.

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

No. A direct flight is the cheapest option for a flight between Las Vegas to Washington, D.C..

As of October 2026, prices for Las Vegas to Washington, D.C. flights are approximately 1% more expensive when compared to flights at the same time last year.

Southwest, Delta, and United Airlines are the most popular carriers operating from Las Vegas Harry Reid Intl to Washington, D.C.

Frontier, Southwest and United Airlines are the top three most popular airlines that fly to Washington, D.C. from Las Vegas according to our data. Frontier is the first choice among our users, with 31% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 6 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

Historically, on average around 14% of flights between Las Vegas and Washington, D.C. have experienced a delay on any given week. The average delay length over the past 12 months has been 141 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 9% of their flights experiencing any sort of delay.

Denver (DEN) was the most common stop: 73% of momondo users choosing 1-stop flights on this route connected there.

Flights via Atlanta (ATL) offer the lowest average round-trip price of $223.

Flights connecting via Kansas City (MCI) have the shortest average one-way travel time: 6h 05m.

Kansas City (MCI) has the shortest average layover time for this route: 0h 55m.

8 flights are operational daily from Las Vegas to Washington, D.C. as of October 2026. The most popular departure time for this route is 8:00AM, with 35% of flights per day taking off at noon.

56 flights are operational weekly from Las Vegas to Washington, D.C. as of October 2026. The most popular departure day for this route is Wed, with 32% of flights per week taking off on this day.