Cheap Flights from Portland, ME to Denver, CO from $146

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On Cheapflightsplus.com you will find 5 direct and 153 connecting flights from Portland to Denver. You can compare airfare deals from 3 airlines and multiple travel sites from $146, 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: $146 (one-way), $250 (round-trip).

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Best Flights from Portland to Denver Today

Take a look at the list of non stop flights and flights with layovers from Portland to Denver with the lowest price of $146. The fastest direct flight takes 4h 25m and the fastest connecting – 6h 19m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $296 Find flight	15:35 Portland Portland Intl Jetport	18:00 Denver Denver International	4h 25m	United Airlines	UA1092
from $445 Find flight	15:37 Portland Portland Intl Jetport	18:15 Denver Denver International	4h 38m	United Airlines	UA1593
from $146 Find flight	12:42 Portland Portland Intl Jetport	17:07 Denver Denver International	6h 25m layover 1h 12m - Minneapolis	Sun Country Airlines	SY1822 SY657
from $219 Find flight	19:26 Portland Portland Intl Jetport	23:54 Denver Denver International	6h 28m layover 0h 50m - Washington D.C.	United Airlines	UA3582 UA495
from $219 Find flight	05:45 Portland Portland Intl Jetport	10:17 Denver Denver International	6h 32m layover 0h 57m - Washington D.C.	United Airlines	UA3415 UA419
from $219 Find flight	06:00 Portland Portland Intl Jetport	10:35 Denver Denver International	6h 35m layover 0h 48m - Newark	United Airlines	UA3472 UA513
from $219 Find flight	06:00 Portland Portland Intl Jetport	10:35 Denver Denver International	6h 35m layover 0h 58m - Chicago	United Airlines	UA1857 UA250
from $219 Find flight	16:56 Portland Portland Intl Jetport	21:59 Denver Denver International	7h 3m layover 1h 21m - Chicago	United Airlines	UA2466 UA1555
from $219 Find flight	17:35 Portland Portland Intl Jetport	23:03 Denver Denver International	7h 28m layover 1h 21m - Newark	United Airlines	UA3616 UA1792
from $220 Find flight	05:35 Portland Portland Intl Jetport	10:10 Denver Denver International	6h 35m layover 0h 55m - Washington D.C.	United Airlines	UA3552 UA419
from $220 Find flight	18:20 Portland Portland Intl Jetport	23:22 Denver Denver International	7h 2m layover 1h 7m - Chicago	United Airlines	UA3520 UA767
from $220 Find flight	14:22 Portland Portland Intl Jetport	19:28 Denver Denver International	7h 6m layover 1h 16m - Washington D.C.	United Airlines	UA3624 UA1071
from $220 Find flight	14:08 Portland Portland Intl Jetport	19:29 Denver Denver International	7h 21m layover 1h 6m - Washington D.C.	United Airlines	UA3624 UA1728
from $220 Find flight	15:13 Portland Portland Intl Jetport	21:04 Denver Denver International	7h 51m layover 1h 44m - Newark	United Airlines	UA3620 UA407
from $220 Find flight	08:00 Portland Portland Intl Jetport	14:13 Denver Denver International	8h 13m layover 2h 29m - Newark	United Airlines	UA3639 UA1254
from $264 Find flight	10:40 Portland Portland Intl Jetport	17:43 Denver Denver International	9h 3m layover 3h 12m - Newark	United Airlines	UA3405 UA475

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on July 12, 2025

Flight Schedule Portland (Maine) to Denver (Colorado)

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	Flight Details	Flight Duration	Price
07:20 — 09:58	07:20 — 09:58 UA604 United Airlines Portland — Denver	4h 38m	Find flight from$336
15:35 — 18:00	15:35 — 18:00 UA1092 United Airlines Portland — Denver	4h 25m	Find flight from$296
15:35 — 18:00	15:35 — 18:00 UA2852 United Airlines Portland — Denver	4h 25m	Find flight from$300
15:37 — 18:15	15:37 — 18:15 UA2411 United Airlines Portland — Denver	4h 38m	Find flight from$336
15:37 — 18:15	15:37 — 18:15 UA1593 United Airlines Portland — Denver	4h 38m	Find flight from$445
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	Find flight from$220
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	Find flight from$219
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	Find flight from$219
06:00 — 10:35	06:00 — 07:51 UA1857 United Airlines Portland — Chicago 58m stop 08:49 — 10:35 UA250 United Airlines Chicago — Denver	6h 35m including layover	Find flight from$219
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	Find flight from$220
08:00 — 14:11	08:00 — 09:31 UA3424 United Airlines Portland — Newark 2h 28m stop 11:59 — 14:11 UA1254 United Airlines Newark — Denver	8h 11m including layover	Find flight from$229
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$226
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$226
12:11 — 18:48	12:11 — 14:00 UA3719 United Airlines Portland — Newark 2h 30m stop 16:30 — 18:48 UA1197 United Airlines Newark — Denver	8h 37m including layover	Find flight from$272
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	Find flight from$146
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	Find flight from$209
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$253
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$220
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$220
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	Find flight from$220
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$219
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$226
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$219
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$220
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$226
19:26 — 23:54	19:09 — 21:04 UA3582 United Airlines Portland — Washington D.C. 50m stop 22:19 — 00:15 UA495 United Airlines Washington D.C. — Denver	6h 28m including layover	Find flight from$219

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times - local. Updated on July 12, 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 05:35 to 19:26 from 1 Portland airport and arrive 05:35 to 19:26 to 2 Denver airports. Average flight time is 4h 38m.

The fastest flight 4h 25m
Average flight time 4h 38m
The earliest flight 05:35
The latest flight 19:26
Distance 1778 ml

The cheapest months to travel to Denver are august (from 146 $), june (from 208 $), july (from 209 $).

The most expensive months are may (from 259 $), october (from 226 $), september (from 219 $).

What is the lowest airfare Portland to Denver?

The cheapest plane ticket found by our users is $146. This airfare is for economy class on one-way SY1822 flight by Sun Country Airlines for August 28, 2025 which leaves Portland Intl Jetport in Portland at 12:42 am and arrives at Denver Denver International at 17:07.

Economy class

$146

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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 3 regular airlines and 1 low-cost airline. Most of the flights on this route are operated by Sun Country Airlines - 5 departures per week at the price of from $ 146 . And the most expensive tickets are offered by United Airlines airline - from $ 699.

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 SY1822 by Sun Country Airlines for $296.

UA - United Airlines

from $296

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Connecting Flights

There are 153 flights with layovers on the route. The fastest connecting flight is UA3438 by United Airlines takes 6h 19m and the cheapest is SY1822 by Sun Country Airlines for $146.

SY - Sun Country Airlines

from $146

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MX - Mexicana

from $308

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UA - United Airlines

from $219

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Airports

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

Portland airports

Portland Intl Jetport-PWM

from $146
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Denver airports

Denver International-DEN

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Arapahoe Co-APA

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Airplanes

There are flights to Denver from Portland by 3 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

Top Domestic Destinations from Portland

You may also consider searching for discounted plane tickets to some other popular places from Portland within United States.

Portland — Las Vegas

from $74

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Portland — Seattle

from $80

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Portland — Chicago

from $60

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Portland — Denver

from $55

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Portland — San Diego

from $68

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Portland — Los Angeles

from $56

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Portland — Sacramento

from $58

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Portland — Austin

from $59

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Portland — Spokane

from $63

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Portland — Atlanta

from $64

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Top International Destinations from Portland

Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.

Portland — Vancouver

from $73

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Portland — Calgary

from $75

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Portland — Amsterdam

from $59

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Portland — Guadalajara

from $68

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How to book a plane 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.
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