Cheapest€124.04
- Southwest Airlines SA471518:102h 32m20:42Portland PDXDenver DEN
Door to door 5h 42mCO2 400.2 kgChanges 0Fixed, no changes
Portland to Denver flight
Flights from Portland to Denver start at €134.66 and take 5h 38m at their fastest.
Check dates and fares
Fares and seats move by the day. Price Portland to Denver on the date you actually want, rather than on the date this page was built.
The Flights from Portland to Denver starts at €134.66 and takes 5h 38m door to door, run by 4 operators over 1,627 km, with around 32 departures a day. Fares bottom out about 30 days before departure.
- 5h 38mDoor to door
- 2h 28mMoving
- €134.66 to €260.92From
- 06:10 to 20:43First and last departure
- 32Per day
- 400.2 kgCO2
First and last are taken from the services we sell on 5 October 2026. The return direction keeps its own timetable and is not these times reversed.
€134.66 to €260.92 for one passenger across the 14 departure dates priced here. The low end is one day, not every day. Worked out from this corridor rather than held for anybody. The operator sets the price on the day.
Fares by date
What this journey usually costs, by departure date. It shows which days run dearer.
Typical fares
- about €234.37Tue15
- about €250.89Wed16
- about €260.92Thu17
- about €236.73Fri18
- about €249.12Sat19
- about €230.83Sun20
- about €158.26Mon21
- about €156.49Tue22
- about €166.52Wed23
- about €208.41Thu24
- about €193.07Fri25
- about €206.64Sat26
- about €183.04Sun27
- about €134.66Mon28
Based on what this route has cost recently. The operator sets the price on the day, and the live fare is confirmed when you book.
The cheapest and the fastest on 5 October 2026
Fastest€168.29
- Southwest Airlines SA317708:492h 28m11:17Portland PDXDenver DEN
Door to door 5h 38mCO2 400.2 kgChanges 0Fixed, no changes
Airlines
| Operator | From |
|---|---|
 Alaska Airlines | €132.89 |
 Frontier Airlines | €125.81 |
| United Airlines | €129.35 |
 Southwest Airlines | €124.04 |
The flight gets you into Denver. It does not get you a bed, and neither do we.
A room in Denver for the night the flight gets in
Sort by distance from 38th & Blake and you can see which places are ten minutes on foot and which are not.
Search Denver on Booking.comOr compare on Expedia
Partner links. We do not sell accommodation. We earn a commission when a booking completes, and it never changes what you pay.
When to book Portland to Denver
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €148.2390 days
- €125.8160 days
- €141.7445 days
- €114.0130 days
- €124.0421 days
- €134.6614 days
- €158.267 days
- €260.923 days
- €234.371 days
- Cheapest lead time
- Fares bottom out around 30 days ahead, at €114.01.
- How much it moves
- The gap between the cheapest and dearest lead time is 129 percent. The dearest point is €260.92, 3 days out.
- What that means
- Today sits inside the cheap window, which closes about 30 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Which departure day costs least
Median cheapest fare for each weekday, taken across the next three weeks of real prices.
- €183.04Sun
- €134.66Mon
- €156.49Tue
- €166.52Wed
- €208.41Thu
- €193.07Fri
- €206.64Sat
Where you leave from and where you arrive
Portland
Air
- PDX
Denver
Air
- DEN
What the journey actually looks like
- How far it really runs
- The route covers 1,627 km against 1,579 km in a straight line, a detour of 3 percent. Track and road geometry account for the difference.
- First and last departure
- The first service of the day leaves Portland at 06:10 and the last at 20:43, across 32 departures The return direction keeps its own timetable, so the times back are not these times reversed.
Questions about Portland to Denver
The questions people actually ask about this journey, answered from the same prices and times the page above is built on rather than written once and left to go stale.
How long does the Flight from Portland to Denver take?
The Flight from Portland to Denver takes 5h 38m door to door, of which 2h 28m is spent moving. The route runs 1,627 km. The difference between the two times is reaching the terminal and leaving it at the far end, which every time on this page includes.
How much does the Flight from Portland to Denver cost?
The Flight from Portland to Denver starts at €134.66 for one passenger, as of 14 September 2026. A typical fare is €153.84. Both are the total including taxes, supplier fees and our service fee, so the price here is the price at checkout.
Who runs the Flight from Portland to Denver?
4 operators run the Flight from Portland to Denver: Alaska Airlines, Frontier Airlines, United Airlines, Southwest Airlines. Between them they file around 32 departures a day. The operator table on this page compares them on fare, journey time, cruising speed, fare conditions and what is provided on board.
Which terminal does the Flight from Portland to Denver use?
The Flight from Portland to Denver leaves from Portland PDX and arrives at Denver DEN. Allow about 3h 10m for reaching the departure terminal and leaving the arrival one. That time is already inside every door to door figure quoted on this page.
When should I book the Flight from Portland to Denver?
Fares for the Flight from Portland to Denver bottom out around 30 days ahead, at €114.01. The gap between the cheapest and dearest lead time across the window is 129 percent, measured on 14 September 2026. Booking inside the final week has consistently cost more.
How much CO2 does the Flight from Portland to Denver produce?
The Flight from Portland to Denver produces about 400.2 kg of CO2 per passenger over 1627 km, which works out at roughly 246 grams per passenger kilometre. That figure is for the whole journey and for one traveller, not for the vehicle.
Where these numbers come from
Places, coordinates, operators, which operator serves which pair, and every distance on this page are real and come from open data. Where a corridor has a filed timetable the departure times are real too, and ferry fares are the prices the operators publish themselves.
Observed service A carrier record shows this named operator serving this named pair, and we carry that through unchanged.
Where no operator publishes a fare for a corridor, the price here is our own estimate, worked out from the real distance and the real operator through a fare curve that follows lead time, day of the week and season. It tells you roughly what the journey costs. It is not a seat anyone has agreed to sell, and the payment step will not take it.
Defined in full at Door to door, Fares, The booking window, Carbon
- On this page
- Every figure above was computed for Portland to Denver on 14 September 2026: 1627 km of route against 1579 km in a straight line, 32 services a day, 4 operators a cheapest fare of €134.66, and 5h 38m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
Related journeys
Denver to Portland flightCompare every mode from Portland to DenverAbilene to Denver flightAkron to Denver flightAlbuquerque to Denver flightAllentown to Denver flightAmarillo to Denver flightAnchorage to Denver flightAsheville to Denver flightAtlanta to Denver flightAustin to Denver flightBakersfield to Denver flightBaltimore to Denver flightBend to Denver flight