Cheap flights from Las Vegas to Dulles (LAS to IAD) from $349
Compare prices across airlines and find the best deals
Discover deals on Las Vegas to Dulles flights
Typical range $349-$649•Cheapest found $349
Updated recentlyCompare prices across airlines and find the best deals
Compare prices across airlines to find the best deal. Prices can vary significantly.
Flying midweek or in off-peak seasons can save you up to 30% on airfare.
Booking 6+ weeks in advance typically offers the best prices.
Airlines operating flights from Las Vegas to Dulles include Frontier Airlines, Sun Country, American Airlines, Hawaiian Airlines, Alaska Airlines.
Book at the right time: For domestic routes like Las Vegas to Dulles, the sweet spot is 3–5 weeks before departure. Booking too early can mean missing seat sales; too late means paying peak prices.
Shift your dates by a day or two: Mid-week departures (Tuesday–Wednesday) are almost always cheaper than weekend flights. Even shifting by one day can make a meaningful difference.
Weigh up connecting flights: Connecting flights on Las Vegas to Dulles can be 20–40% cheaper than direct options. If you have time to spare, it's worth comparing.
Factor in baggage fees: Low-cost carriers on this route often advertise attractive base fares but charge separately for checked luggage. Always compare the all-in price — a $20 cheaper fare plus $50 baggage fee is no saving. Frontier Airlines and Sun Country may have different inclusions, so check each airline's fare conditions.
Search in private browsing: Some booking sites use cookies to track repeat searches and may show higher prices after multiple lookups. Use an incognito or private window — or just use Booked AI, which pulls live prices without any tracking markup.
The cheapest flights from Las Vegas to Dulles start from $349, with typical prices ranging from $1,312 to $1,612.
The typical flight time from Las Vegas to Dulles is approximately 7 hours and 41 minutes.
Airlines operating this route include Frontier Airlines, Sun Country, American Airlines, Hawaiian Airlines, Alaska Airlines.
Prices sourced via Duffel and updated regularly. All fares shown are indicative one-way prices in AUD and may vary at time of booking. Booked AI is an IATA-accredited travel platform.