Cheap flights from Las Vegas to Washington, D.C. from $156

In general, August is the cheapest month to fly from Las Vegas to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $267. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of August, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $283.

Our data shows that Friday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $361. 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. Dulles Intl Airport for around $681.

Flying to Washington, D.C. Dulles Intl Airport from Las Vegas in the evening is the least expensive time of day to depart. momondo users have found prices as low as $364 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $618 on average. Flights to Washington, D.C. Dulles Intl Airport from Las Vegas at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Las Vegas when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $382 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Las Vegas for as low as $302 on momondo.

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

As of May 2026, prices for Las Vegas to Washington, D.C. Dulles Intl Airport flights are approximately 51% cheaper when compared to flights at the same time last year.

Historically, on average around 10% 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 139 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.

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday 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.

As of May 2026, 3 flights take off from Las Vegas and land in Washington, D.C. Dulles Intl Airport each day. The most common flight departure time for this route is 8:00AM, with 62% of daily flights taking off at noon.

As of May 2026, 21 flights take off from Las Vegas and land in Washington, D.C. Dulles Intl Airport each week. The most common flight departure day for this route is Tue, with 24% of weekly flights taking off on this day.