Cheap flights from Washington, D.C. to Las Vegas from $135

The cheapest month to fly to Las Vegas from Washington, D.C. is in August. Flight prices, which tend to average around $418, are often lower during this time because this is during the off-season. If you aren’t able to travel to Las Vegas during the month of August, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $575.

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

You are more likely to see cheaper flights to Las Vegas from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around $712 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Las Vegas from Washington, D.C. for as low as $578 on momondo.

There is only 1 cabin class available to choose from on Washington, D.C. to Las Vegas flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 30% on your flight if you consider stops on a Washington, D.C. to Las Vegas flight.

As of July 2026, prices for Washington, D.C. to Las Vegas flights are approximately 56% cheaper when compared to flights at the same time last year.

Historically, on average around 18% of flights between Washington, D.C. and Las Vegas have experienced a delay on any given week. The average delay length over the past 12 months has been 171 minutes.

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

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

According to our data, American Airlines have had the fewest delays on this route over the last 12 months, with about 8% of their flights experiencing any sort of delay.

5 flights are operational daily from Washington, D.C. to Las Vegas as of July 2026. The most popular departure time for this route is 09:00, with 42% of flights per day taking off at midday.

37 flights are operational weekly from Washington, D.C. to Las Vegas as of July 2026. The most popular departure day for this route is Thu, with 22% of flights per week taking off on this day.