Cheap Flights from Portland, ME to Denver, CO from $106

Return flight: Denver – Portland

On Cheapflightsplus.com you will find 5 direct and 189 connecting flights from Portland to Denver. You can compare airfare deals from 5 airlines and multiple travel sites from $106, book and save on cheap plane tickets and last minute offers. Also check out PWM-DEN flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Portland to Denver Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $106 (one-way), $182 (round-trip).
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Full flight schedule will help you in detecting at what time planes fly from Portland to Denver. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
07:20 — 09:58
07:20 — 09:58 UA604 United Airlines
Portland — Denver
4h 38m
Find flight
from$223
15:35 — 18:00
15:35 — 18:00 UA1092 United Airlines
Portland — Denver
4h 25m
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from$220
15:35 — 18:00
15:35 — 18:00 UA2852 United Airlines
Portland — Denver
4h 25m
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from$223
15:37 — 18:15
15:37 — 18:15 UA2411 United Airlines
Portland — Denver
4h 38m
Find flight
from$221
15:37 — 18:15
15:37 — 18:15 UA1593 United Airlines
Portland — Denver
4h 38m
Find flight
from$331
05:35 — 10:10
05:35 — 07:25 UA3552 United Airlines
Portland — Washington D.C.
55m stop
08:20 — 10:10 UA419 United Airlines
Washington D.C. — Denver
6h 35m
including layover
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from$162
05:45 — 10:17
05:45 — 07:33 UA3415 United Airlines
Portland — Washington D.C.
57m stop
08:30 — 10:17 UA419 United Airlines
Washington D.C. — Denver
6h 32m
including layover
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from$163
06:00 — 10:35
06:00 — 07:32 UA3472 United Airlines
Portland — Newark
48m stop
08:20 — 10:35 UA513 United Airlines
Newark — Denver
6h 35m
including layover
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from$163
06:10 — 10:35
06:00 — 07:53 UA1834 United Airlines
Portland — Chicago
40m stop
08:45 — 10:35 UA1599 United Airlines
Chicago — Denver
6h 25m
including layover
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from$162
08:00 — 14:17
08:00 — 09:31 UA3680 United Airlines
Portland — Newark
2h 28m stop
11:59 — 14:17 UA1254 United Airlines
Newark — Denver
8h 17m
including layover
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from$162
08:00 — 14:13
08:00 — 09:31 UA3639 United Airlines
Portland — Newark
2h 29m stop
12:00 — 14:13 UA1254 United Airlines
Newark — Denver
8h 13m
including layover
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from$164
10:05 — 14:24
10:05 — 11:55 UA3438 United Airlines
Portland — Washington D.C.
42m stop
12:50 — 14:42 UA1587 United Airlines
Washington D.C. — Denver
6h 19m
including layover
Find flight
from$168
10:05 — 16:28
10:05 — 11:53 UA3438 United Airlines
Portland — Washington D.C.
2h 46m stop
14:39 — 16:28 UA700 United Airlines
Washington D.C. — Denver
8h 23m
including layover
Find flight
from$168
12:42 — 17:07
12:47 — 15:00 SY1822 Sun Country Airlines
Portland — Minneapolis
1h 12m stop
16:12 — 17:27 SY657 Sun Country Airlines
Minneapolis — Denver
6h 25m
including layover
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from$108
12:46 — 08:39
+1 day
12:46 — 14:54 SY1822 Sun Country Airlines
Portland — Minneapolis
16h 36m stop
07:30 — 08:39 SY651 Sun Country Airlines
Minneapolis — Denver
21h 53m
including layover
Find flight
from$155
13:16 — 10:23
+1 day
12:40 — 14:48 SY1822 Sun Country Airlines
Portland — Minneapolis
17h 48m stop
10:12 — 11:22 SY1609 Sun Country Airlines
Minneapolis — Denver
23h 7m
including layover
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from$156
13:16 — 15:59
+1 day
12:46 — 14:54 SY1822 Sun Country Airlines
Portland — Minneapolis
23h 24m stop
14:54 — 16:01 SY655 Sun Country Airlines
Minneapolis — Denver
28h 43m
including layover
Find flight
from$189
14:08 — 19:29
14:08 — 16:19 UA3624 United Airlines
Portland — Washington D.C.
1h 6m stop
17:25 — 19:29 UA1728 United Airlines
Washington D.C. — Denver
7h 21m
including layover
Find flight
from$162
14:22 — 19:28
14:22 — 16:20 UA3624 United Airlines
Portland — Washington D.C.
1h 16m stop
17:36 — 19:28 UA1071 United Airlines
Washington D.C. — Denver
7h 6m
including layover
Find flight
from$164
15:13 — 21:04
15:04 — 16:44 UA3620 United Airlines
Portland — Newark
1h 44m stop
18:50 — 21:17 UA407 United Airlines
Newark — Denver
7h 51m
including layover
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from$164
15:35 — 22:43
15:35 — 19:10 UA5529 United Airlines
Portland — Houston
1h 39m stop
20:49 — 22:43 UA2215 United Airlines
Houston — Denver
9h 8m
including layover
Find flight
from$170
16:56 — 21:59
16:56 — 18:47 UA2466 United Airlines
Portland — Chicago
1h 21m stop
20:08 — 21:59 UA1555 United Airlines
Chicago — Denver
7h 3m
including layover
Find flight
from$163
16:56 — 21:59
16:56 — 18:53 UA2466 United Airlines
Portland — Chicago
1h 21m stop
21:32 — 23:22 UA767 United Airlines
Chicago — Denver
7h 3m
including layover
Find flight
from$168
17:35 — 23:03
17:35 — 19:24 UA3616 United Airlines
Portland — Newark
1h 21m stop
20:45 — 23:03 UA1792 United Airlines
Newark — Denver
7h 28m
including layover
Find flight
from$163
18:20 — 23:22
18:20 — 20:25 UA3520 United Airlines
Portland — Chicago
1h 7m stop
21:32 — 23:22 UA767 United Airlines
Chicago — Denver
7h 2m
including layover
Find flight
from$164
18:23 — 23:03
18:23 — 20:23 UA4744 United Airlines
Portland — Chicago
54m stop
21:17 — 23:03 UA2296 United Airlines
Chicago — Denver
6h 40m
including layover
Find flight
from$168
19:25 — 07:59
+1 day
19:25 — 22:57 F92621 Frontier Airlines
Portland — Orlando
7h 3m stop
06:00 — 07:59 F91733 Frontier Airlines
Orlando — Denver
14h 34m
including layover
Find flight
from$106
19:25 — 23:19
+1 day
19:25 — 22:57 F92621 Frontier Airlines
Portland — Orlando
22h 2m stop
20:59 — 23:19 F93311 Frontier Airlines
Orlando — Denver
29h 54m
including layover
Find flight
from$114
*Departure and arrival times - local. Updated on June 17, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Portland to Denver depends on and how to choose the most interesting flight option for you.

Distance between Portland and Denver is 2861 miles. Time difference between the cities is 2h. Airplanes depart 05:08 to 20:07 from 1 Portland airport and arrive 05:08 to 20:07 to 2 Denver airports. Average flight time is 4h 38m.

  • The fastest flight 4h 25m
  • Average flight time 4h 38m
  • The earliest flight 05:08
  • The latest flight 20:07
  • Distance 1778 ml

The cheapest months to travel to Denver are june (from 142 $), august (from 145 $), july (from 208 $).

The most expensive months are may (from 257 $), october (from 224 $), september (from 218 $).

What is the lowest airfare Portland to Denver?

The cheapest plane ticket found by our users is $106. This airfare is for economy class on one-way F92621 flight by Frontier Airlines for June 28, 2025 which leaves Portland Intl Jetport in Portland at 19:25 am and arrives at Denver Denver International at 07:59.

Economy class
$106
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Business class
?
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First class
?
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Popular Airlines on the Route

The flight Portland — Denver is served by 5 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 3 departures per week at the price of from $ 312 . And the most expensive tickets are offered by United Airlines airline - from $ 521.

Direct flights

There are 5 nonstop flights on the route. The fastest direct flight is UA1092 by United Airlines takes 4h 25m and the cheapest is F92621 by Frontier Airlines for $220.

  • UA - United Airlines
    from $220
    Find
See more direct flights

Connecting Flights

There are 189 flights with layovers on the route. The fastest connecting flight is UA3438 by United Airlines takes 6h 19m and the cheapest is F92621 by Frontier Airlines for $106.

  • AS - Alaska Airlines
    from $312
    Find
  • F9 - Frontier Airlines
    from $106
    Find
  • SY - Sun Country Airlines
    from $108
    Find
  • MX - Mexicana
    from $229
    Find
  • UA - United Airlines
    from $162
    Find
See more connecting flights

Airports

You can fly from Portland to Denver from 1 airports (Portland Intl Jetport).

Portland airports

  • Portland Intl Jetport-PWM
    from $106
    Find

Denver airports

  • Denver International-DEN
    Find
  • Arapahoe Co-APA
    Find

How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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