Portland (PDX) to Las Vegas (LAS): 763 miles (1,227 km) great-circle, about 2h 00m nonstop by our estimate. Cheapest fare observed: $256 round-trip on Alaska Airlines, nonstop, departing May 9, 2026.
$256 round-trip, Alaska Airlines AS627, departing 2026-05-09 at 07:30, returning 2026-05-12. The recorded itinerary left on a Saturday, returning on a Tuesday 3 nights later; the fare was observed 14 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $256, it ranked 8th of the 30 round-trip fares we recorded from PDX (median $378). That is 33.6 cents per great-circle mile (round-trip price over one-way distance), above the PDX median of 21.2 cents across 30 round-trip routes.
Routes from PDX of similar length: Los Angeles (835 mi) at $233 and Billings (678 mi) at $363.
Alaska Airlines had the cheapest fare on 13 of 30 PDX routes. It is the 27th longest of the 30 routes we track from PDX.
Of 32 departure airports with a fare to Las Vegas, Portland (PDX) ranked 26th at $256. Lowest: $51 from San Francisco (SFO); highest: $465 from Los Cabos (SJD); 16 nonstop. Cheapest-fare airlines (routes): Frontier (24), Alaska Airlines (2), Air Canada (1), American Airlines (1), JetBlue (1) and Southwest (1), plus 2 more.
The reverse, Las Vegas (LAS) to Portland (PDX), was $148 round-trip on Frontier, nonstop, departing May 1, 2026. Las Vegas to Portland flights.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Los_Angeles, America/Los_Angeles; flight time is our estimate.