Cheapest return flights from Portland to Las Vegas in May from $49

Best time to book flights for Portland (PDX) to Las Vegas (LAS) flights at AirHint

AirHint found the following cheapest return flights from Portland (PDX) to Las Vegas (LAS) in May 2025 (see full year).

Return flights

10 May - 13 May Spirit Airlines direct
06 May - 13 May Spirit Airlines direct
07 May - 14 May Spirit Airlines direct
03 May - 10 May Spirit Airlines direct
10 May - 14 May Spirit Airlines direct
10 May - 12 May Spirit Airlines direct
05 May - 08 May Spirit Airlines direct
12 May - 15 May Spirit Airlines direct
08 May - 10 May Frontier Airlines direct
04 May - 07 May Frontier Airlines direct
22 May - 03 Jun Frontier Airlines direct
31 May - 09 Jun Spirit Airlines direct
30 May - 01 Jun Frontier Airlines
30 May - 01 Jun Frontier Airlines direct
23 May - 01 Jun Southwest Airlines
23 May - 01 Jun Frontier Airlines direct

Also check the deals for one-way flights from Portland to Las Vegas in May.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Las Vegas

Cheap car rent in Las Vegas