Cheap flights from Las Vegas to Washington, D.C. from $149

The month of December is, on average, the cheapest month to fly to Washington, D.C. Reagan-National Airport from Las Vegas, with most prices found around $257. If you aren’t able to travel to Washington, D.C. Reagan-National Airport during the month of December, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $288.

The cheapest day to depart from Las Vegas to Washington, D.C. Reagan-National Airport is on a Wednesday. Travelers who choose to depart for Washington, D.C. Reagan-National Airport on a Wednesday will often find tickets for as low as $421. Flights from Las Vegas to Washington, D.C. Reagan-National Airport on a Monday will generally be more expensive and average around $597. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our data shows that the cheapest Las Vegas to Washington, D.C. Reagan-National Airport flights are usually those with departure times at noon. Our users have found flights to Washington, D.C. Reagan-National Airport at noon for as low as $488. In contrast, the most expensive time of day to depart to Washington, D.C. Reagan-National Airport is in the morning when prices are around $499.

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

You are more likely to see cheaper flights to Washington, D.C. Reagan-National Airport from Las Vegas when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Reagan-National Airport for around $379 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Reagan-National Airport from Las Vegas for as low as $252 on momondo.

There are 3 cabin classes available to choose from on Las Vegas Harry Reid Intl to Washington, D.C. Reagan-National 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. Reagan-National Airport.

As of April 2026, prices for Las Vegas to Washington, D.C. Reagan-National Airport flights are approximately 44% more expensive when compared to flights at the same time last year.

JetBlue and Alaska Airlines are the most popular carriers operating from Las Vegas Harry Reid Intl to Washington, D.C. Reagan-National

Frontier, Southwest and American Airlines are the top three most popular airlines that fly to Washington, D.C. Reagan-National Airport from Las Vegas according to our data. Frontier is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Washington, D.C. Reagan-National Airport. Keep in mind that there are 4 different airlines that fly to Washington, D.C. Reagan-National Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 18% 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 127 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, Southwest have had the least number of delays on this route over the last 12 months; with about 18% of their flights experiencing any sort of delay.

Denver (DEN) was the most common stop: 90% of momondo users choosing 1-stop flights on this route connected there.

Flights via Atlanta (ATL) offer the lowest average round-trip price of $268.

Flights connecting via Atlanta (ATL) have the shortest average one-way travel time: 6h 48m.

Atlanta (ATL) has the shortest average layover time for this route: 1h 06m.

The number of flights available between Las Vegas and Washington, D.C. Reagan-National Airport is 2 per day as of April 2026. The most frequent departure time is 1:00PM, with 78% of daily flights leaving in the afternoon.

The number of flights available between Las Vegas and Washington, D.C. Reagan-National Airport is 17 per week as of April 2026. The most frequent departure day is Sun, with 24% of weekly flights leaving on this day.