Cheapest airlines flights from Washington D.C. to Las Vegas

You can choose from 3 airlines that fly from Washington D.C. to Las Vegas, including United Airlines, American Airlines, and Delta Air Lines. American Airlines has lowest fares on this route.
Airlines are determined based on actual purchased flight tickets from Washington D.C. to Las Vegas according to previous 12 months data from Trip.com.

Search for direct flights from Washington D.C. to Las Vegas in the next 3 months. Based on Trip.com's latest 7-day flight data, one-way direct flights start at US$71, and round-trip direct flights start at US$184.

Displayed flight fares from Washington D.C. to Las Vegas are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Washington D.C. to Las Vegas Flight Details

The distance between Washington D.C. and Las Vegas is about 3,354.7 km. The average flying time from Washington D.C. to Las Vegas is around 6 hours 52 minutes. Based on Trip.com's latest data, travel demand is highest in July. The off-season for travel is August.

Cheapest one-way flight priceUS$58
Cheapest return ticket priceUS$138
Cheapest monthAugust
Peak season for travelJuly
Flight distance3,354.7 km
Average flight time6 hours 52 minutes
Popular airlineUnited Airlines
Flight statistics for the Washington D.C.–Las Vegas route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com Price Insights on Flights from Washington D.C. to Las Vegas

Which month has the cheapest one-way flights from Washington D.C. to Las Vegas?

The average price of one-way flights from Washington D.C. to Las Vegas purchased by Trip.com users by month over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from Washington D.C. to Las Vegas is May, with an average price of US$144; while the month with the highest flight price is usually Oct, with an average price of up to US$355.

US$355
US$250
US$144
US$39
    Cheapest
  • US$234
    Jan
  • US$262
    Feb
  • US$196
    Mar
  • US$155
    Apr
  • US$144
    May
  • US$194
    Jun
  • US$179
    Jul
  • US$198
    Aug
  • US$193
    Sep
  • US$355
    Oct
  • US$262
    Nov
  • US$308
    Dec

What is the cheapest day of the week to fly from Washington D.C. to Las Vegas?

Average weekly flight prices from Washington D.C. to Las Vegas by travel date (Based on Trip.com’s past 12 months of data)

Based on Trip.com’s past 12 months of flight data, the cheapest day to fly from Washington D.C. to Las Vegas is Wed, with average prices lower than on other days. Avoid Thu, as prices are usually highest then.

US$307
US$235
US$163
US$92
    Cheapest
  • US$215
    Mon
  • US$213
    Tue
  • US$163
    Wed
  • US$307
    Thu
  • US$265
    Fri
  • US$224
    Sat
  • US$210
    Sun

Frequently Asked Questions

  • What are the cheapest flights from Washington D.C. to Las Vegas (WAS-LAS)?

    Based on Trip.com data, Frontier Airlines offers one-way fares as low as US$58 on Cheapest nonstop routes (e.g. DCA to LAS on Sat, Feb 28), while Frontier Airlines offers Cheapest nonstop round-trips from US$138 departing on Fri, Jan 30 and returning on Thu, Feb 5.
  • At the moment, you can catch a nonstop flight from Washington D.C. to Las Vegas with the following airlines, including: United Airlines American Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes about 6 hours 52 minutes to fly from Washington D.C. to Las Vegas.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Washington D.C. to Las Vegas is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 25 flight per week flying from Washington D.C. to Las Vegas. You can check the weekly schedule for popular airlines on this route below: United Airlines: S/M/T/W/T/F/S -- UA1323 (08:48) United Airlines: S/M/T/W/T/F/S -- UA2156 (12:39) American Airlines: S/M/T/W/T/F/S -- AA1853 (07:32)
  • To find best deals on flights from Washington D.C. to Las Vegas, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sat, Feb 28, with one-way flights priced at just US$58.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is American Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Las Vegas travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Washington D.C. to Las Vegas is August, when demand for travel is lower.
  • After crunching the numbers on our January flight calendar, it's currently cheapest to fly from Washington D.C. to Las Vegas on January 26, 2026 with Frontier Airlines, with prices starting at US$51.
  • You can land at any one of the following hubs in Las Vegas, with Dulles International Airport to Harry Reid International Airport (IAD-LAS) is by far the most common option on this route: Boulder City Municipal Airport (BLD) Henderson Executive Airport (HSH) Harry Reid International Airport (LAS) Nellis Air Force Base (LSV).
  • The time difference between Las Vegas and Washington D.C. is 3h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.