Cheapest return flights from Portland to Denver in June from $80

AirHint found the following cheapest return flights from Portland (PDX) to Denver (DEN) in June 2026 (see full year).

Return flights

15 Jun - 22 Jun Frontier Airlines direct
17 Jun - 24 Jun Frontier Airlines direct
04 Jun - 07 Jun Frontier Airlines direct
17 Jun - 20 Jun Frontier Airlines direct
17 Jun - 19 Jun Frontier Airlines direct
17 Jun - 17 Jun Frontier Airlines direct
12 Jun - 19 Jun Frontier Airlines direct
17 Jun - 21 Jun Frontier Airlines direct
11 Jun - 18 Jun Alaska Airlines direct
18 Jun - 22 Jun Frontier Airlines direct

Also check the deals for one-way flights from Portland to Denver in June.

Powered by

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 Denver

Cheap car rent in Denver

Feel free to contact us with any feedback or request another flight research.