IAD to LAS from $179 in economy – flightdeals.net

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United Airlines

UAUnited Airlines

Round Trip•Economy

Washington Dulles International Airport

Washington, United States

Harry Reid International Airport

Las Vegas, United States

$390 USD

-54%$179 USD

Verified about 6 hours ago

June 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

1 2 3 4 5 6 7 8 9 10$485 11$574 12$574 13$485 14$574 15$584 16$440 17$430 18$555 19$503 20$338 21$427 22$427 23$338 24$404 25$358 26$376 27$332 28$341 29$341 30$277 1$201 2$362 3$351 4$323 5$362

Extremely Rare Availability

4% of dates checked are available within 10% of the lowest price

Monday, June 1st, 2026

0 round-trip options

No flight details available for this date.