Cheap flights from Las Vegas to District of Columbia from $125

In general, August is the cheapest month to fly from Las Vegas to District of Columbia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $369. If you don’t want to visit District of Columbia in August, then you should wait until January to fly from Las Vegas, when ticket prices are also cheap, with an average price of $373.

The cheapest day to depart on your flight to District of Columbia is on a Tuesday when prices can be found for as low as $511. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Las Vegas because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $766.

Flying to District of Columbia from Las Vegas in the evening is the least expensive time of day to depart. momondo users have found prices as low as $417 when looking at flights departing in the evening. Flights to District of Columbia are more costly at noon, with an average ticket price of $639. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to District of Columbia from Las Vegas when booking weeks ahead of your departure date. In general, you can expect to find flights to District of Columbia for around $427 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to District of Columbia from Las Vegas for as low as $262 on momondo.

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

Alaska Airlines, Delta, and Southwest are the most popular carriers operating from Las Vegas Harry Reid Intl to District of Columbia

Frontier, United Airlines and Southwest are the top three most popular airlines that fly to District of Columbia 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 District of Columbia. Keep in mind that there are 6 different airlines that fly to District of Columbia on a routine basis, so you have a few additional options to choose from.

As of September 2026, there are 4 flights per day flying from Las Vegas to District of Columbia. The most common time of day flights depart is 8:00AM, with 46% of flights taking off at noon.

As of September 2026, there are 31 flights per week flying from Las Vegas to District of Columbia. The most common day of the week flights depart is Wed, with 39% of flights taking off on this day.