Portland (PDX) to Denver (DEN) flights
4 airlines fly nonstop from Portland (PDX) to Denver (DEN): Alaska Airlines, Frontier Airlines, Southwest Airlines and United Airlines. The two airports are 989 miles (1,592 km) apart. Alaska Airlines is in oneworld and United Airlines is in Star Alliance. There are also 37 ways to fly it with one stop, through Boise, Hayden and Idaho Falls and more.
Airlines flying nonstop from PDX to DEN
- Alaska Airlinesoneworld · bookable with 9 programsWho books it
- Frontier AirlinesNot in an allianceWho books it
- Southwest AirlinesNot in an allianceWho books it
- United AirlinesStar Alliance · bookable with 13 programsWho books it
Book PDX to DEN with points
Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.
- Air Canada AeroplanBooks United Airlines
- Air New Zealand AirpointsBooks United Airlines
- Alaska Atmos RewardsBooks Alaska Airlines
- American AAdvantageBooks Alaska Airlines
- ANA Mileage ClubBooks United Airlines
- Avianca LifeMilesBooks United Airlines
- British Airways ClubBooks Alaska Airlines
- Cathay Pacific Asia MilesBooks Alaska Airlines
- Emirates SkywardsBooks United Airlines
- EVA Air Infinity MileageLandsBooks United Airlines
- Finnair PlusBooks Alaska Airlines
- Iberia ClubBooks Alaska Airlines
- JAL Mileage BankBooks Alaska Airlines
- JetBlue TrueBlueBooks United Airlines
- Lufthansa Miles & MoreBooks United Airlines
- Qantas Frequent FlyerBooks Alaska Airlines
- Qatar Airways Privilege ClubBooks Alaska Airlines
- Singapore Airlines KrisFlyerBooks United Airlines
- TAP Miles&GoBooks United Airlines
- Thai Royal Orchid PlusBooks United Airlines
- Turkish Airlines Miles&SmilesBooks United Airlines
- United MileagePlusBooks United Airlines
PDX to DEN with one stop
37 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Boise (BOI)Alaska Airlines, then Frontier Airlines, United Airlines and 1 more
- Via Hayden (HDN)Alaska Airlines, then United Airlines and Southwest Airlines
- Via Idaho Falls (IDA)Alaska Airlines, then United Airlines
- Via Jackson (JAC)Alaska Airlines, then United Airlines
- Via Redmond (RDM)Alaska Airlines, then United Airlines
- Via Salt Lake City (SLC)Delta Air Lines the whole way
+1 - Via Pasco (PSC)Alaska Airlines, then United Airlines
- Via Bozeman (BZN)Alaska Airlines, then United Airlines and Southwest Airlines
- Via Missoula (MSO)Alaska Airlines, then United Airlines
- Via Eugene (EUG)Alaska Airlines, then United Airlines and Southwest Airlines
- Via Spokane (GEG)Alaska Airlines, then United Airlines and Southwest Airlines
- Via Billings (BIL)Alaska Airlines, then United Airlines
- Via Seattle (SEA)Alaska Airlines and Delta Air Lines the whole way+3
- Via Medford (MFR)Alaska Airlines, then United Airlines
- Via Kalispell (FCA)Alaska Airlines, then United Airlines
PDX to DEN: common questions
Which airlines fly nonstop from PDX to DEN?
Alaska Airlines (oneworld), Frontier Airlines, Southwest Airlines and United Airlines (Star Alliance) fly nonstop from Portland (PDX) to Denver (DEN).
How far is Portland from Denver by plane?
Portland (PDX) and Denver (DEN) are 989 miles (1,592 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
Which points programs can book PDX to DEN award flights?
22 programs can book at least one of the nonstop airlines: Air Canada Aeroplan, Air New Zealand Airpoints, Alaska Atmos Rewards, American AAdvantage, ANA Mileage Club, Avianca LifeMiles, British Airways Club, Cathay Pacific Asia Miles and 14 more. Which flights each can book depends on its partners, so check the airline before you transfer points.
How many miles does PDX to DEN cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for PDX to DEN with taxes and fees.
Where can I connect between Portland and Denver?
The most direct connections are through Boise (BOI), Hayden (HDN), Idaho Falls (IDA), Jackson (JAC) and Redmond (RDM). On 14 of them the same airline flies both flights, for example Delta Air Lines through Salt Lake City.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.