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$91+ Cheap flights from Portland, ME to Denver (PWM - DEN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — DEN
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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The best prices from Portland to Denver Intl are usually found in January or February, booked 87 days in advance, depart on a Wednesday or Friday and return on a Tuesday

Cheap flight deals from Portland to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$257
(Delta)

One-way from

$91
(Frontier)

Popular in

July

Cheapest in

January

Average price

$376

Good round-trip deal

$603 or less

Good one-way deal

$348 or less
Provider with most accurate pricing for Portland-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Denver Intl flights.
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From Portland to Denver Intl
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One-way flight from Portland to Denver Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals
Price to beat on a round-trip flight from Portland to Denver Intl.
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Price to beat on a one-way flight from Portland to Denver Intl.
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Find flight deals from Portland to Denver

Cheapest flights from Portland to Denver
Explore the most affordable flight options available from Portland to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This Delta deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/36:55 pmPWM - DEN
1 stop6h 52mDelta
Mon 10/612:59 amDEN - PWM
1 stop8h 40mDelta
Deal found 2/20$257
This American Airlines deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/296:00 amPWM - DEN
1 stop7h 01mAmerican Airlines
Mon 5/1212:19 pmDEN - PWM
2 stops8h 27mAmerican Airlines
Deal found 2/18$262
This JetBlue deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/13:20 pmPWM - DEN
1 stop9h 38mJetBlue
Mon 5/511:40 amDEN - PWM
1 stop8h 17mJetBlue
Deal found 2/19$272
This Gotogate deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/266:48 pmPWM - DEN
1 stop31h 56mFrontier
Mon 3/36:05 amDEN - PWM
1 stop25h 13mFrontier
Deal found 2/19$276
This Sun Country Air deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3112:32 pmPWM - DEN
1 stop22h 47mSun Country Air
Sun 8/37:15 pmDEN - PWM
1 stop14h 20mSun Country Air
Deal found 2/20$330
This Southwest deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/145:50 amPWM - DEN
2 stops9h 15mSouthwest
Wed 4/166:05 amDEN - PWM
1 stop7h 15mSouthwest
Deal found 2/19$331
This United Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/67:20 pmPWM - DEN
1 stop7h 10mUnited Airlines
Mon 3/1011:59 pmDEN - PWM
1 stop8h 38mUnited Airlines
Deal found 2/19$339
This Mytrip deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/76:18 pmPWM - DEN
3 stops25h 09mMultiple Airlines
Sun 5/116:30 pmDEN - PWM
2 stops22h 06mMultiple Airlines
Deal found 2/20$541

Find flights from Portland to Denver within your budget

Customize your flight search to find flights from Portland to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.

Fly from

Portland

Fly to

Denver

Route

Depart

Return

Price

PortlandDenver

PWM - DEN

PWMDEN

Portland

Tue 4/8

1:02 pm-5:12 pm

1 stop6h 10m

Denver Intl

Mon 4/14

6:05 am-2:19 pm

1 stop6h 14m

$257

PortlandDenver

PWM - DEN

PWMDEN

Portland

Wed 4/2

2:21 pm-10:33 pm

2 stops10h 12m

Denver Intl

Sat 4/12

7:00 am-3:18 pm

1 stop6h 18m

$262

PortlandDenver

PWM - DEN

PWMDEN

Portland

Thu 7/31

12:32 pm-9:19 am

1 stop22h 47m

Denver Intl

Sun 8/3

7:15 pm-11:35 am

1 stop14h 20m

$330

PortlandDenver

PWM - DEN

PWMDEN

Portland

Thu 6/26

7:40 pm-11:40 pm

1 stop6h 00m

Denver Intl

Mon 6/30

7:35 pm-9:50 am

1 stop12h 15m

$333

PortlandDenver

PWM - DEN

PWMDEN

Portland

Wed 8/6

7:15 pm-12:15 am

1 stop7h 00m

Denver Intl

Mon 8/18

11:55 pm-10:44 am

1 stop8h 49m

$360

PortlandDenver

PWM - DEN

PWMDEN

Portland

Fri 3/7

8:35 pm-9:02 am

1 stop14h 27m

Denver Intl

Sat 3/15

11:59 pm-10:15 am

1 stop8h 16m

$370

PortlandDenver

PWM - DEN

PWMDEN

Portland

Mon 5/19

3:20 pm-10:58 pm

1 stop9h 38m

Denver Intl

Sun 5/25

11:40 am-11:19 pm

1 stop9h 39m

$497

PortlandDenver

PWM - DEN

PWMDEN

Portland

Wed 5/7

6:18 pm-5:27 pm

3 stops25h 09m

Denver Intl

Sun 5/11

6:30 pm-6:36 pm

2 stops22h 06m

$541

PortlandDenver

PWM - DEN

PWMDEN

Portland

Wed 3/12

8:35 pm-9:02 am

1 stop14h 27m

$91

PortlandDenver

PWM - DEN

PWMDEN

Portland

Tue 3/18

5:30 am-11:15 am

1 stop7h 45m

$129

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 15 results
1
2

Compare providers for flights from Portland to Denver

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Denver in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland, Maine-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland, Maine-Denver flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland, Maine-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Portland to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Portland to Denver

Get recent, data-driven insights about flights from Portland to Denver including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Portland, Maine to Denver?

Use this chart to determine the optimal time to book a round-trip flight from Portland to Denver. Price data was last updated on February 14, 2025.

Booking 87 days in advance of your planned departure date is, on average, the best time to get cheap flights from Portland, Maine to Denver. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Portland, Maine to Denver?

Currently, October is the cheapest month in which you can book a flight from Portland, Maine to Denver (average of $197). Flying from Portland, Maine to Denver in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PWM to DEN?

Find hourly flight availability from Portland to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 42% on flights from Portland, Maine to Denver by exploring options for tickets in the evening.

What is the cheapest day to fly from Portland, Maine to Denver?

Use this chart to determine the cheapest time to fly round-trip from Portland to Denver. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Portland, Maine to Denver flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Denver by month

Plan your trip to Denver by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Denver ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Denver when rainfall is around 0.5 in.

Temperature in Denver by month

Plan your trip to Denver by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Denver, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denver. Reviews last updated February 20, 2025.
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Entertainment

7.6

Food

7.1

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Entertainment

7.6

Food

7.1

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,219 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Entertainment

7.6

Food

7.1

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

JetBlue
7.4
Good
3,070 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Entertainment

7.6

Food

7.1

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,765 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Entertainment

7.6

Food

7.1

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Entertainment

7.6

Food

7.1

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Related info for your journey

Find useful and relevant information for your journey from Portland to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Portland, Maine to Denver flight route?

    Flights from Portland to Denver Intl have been viewed 1 times in the past calendar month.

  • What are the cheapest airlines flying from Portland, Maine to Denver round-trip?

    According to our current data, Delta ($257), American Airlines ($262), and Sun Country Air ($330) offers the cheapest pricing from Portland, Maine to Denver. You may be able to fly from Portland, Maine to Denver for 45% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Portland, Maine to Denver one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $91. Delta flights start at $129 while deals on American Airlines start at $134 one-way.

  • What are the cheapest flights from Portland, Maine to Denver?

    While on average a flight from Portland, Maine to Denver is generally $550, our data shows the cheapest flight currently is $230. When looking at the most popular route, (Portland - Denver Intl), you can expect to pay $178 for that flight.

  • Where are the most common layover locations when flying from Portland, Maine to Denver?

    Portland, Maine to Denver flights have a layover in New York most often. New York is followed by New York in terms of the most popular layover location on flights from Portland, Maine to Denver.

  • What are some popular things to do or see while on a layover in New York?

    If you're on a layover in New York and looking for things to do, consider visiting Times Square, New York City Center, or Madison Square Garden. Times Square, New York City Center, and Madison Square Garden can be accessed by traveling approximately 13.6 mi, 13.6 mi, and 13.6 mi, respectively from New York John F Kennedy Intl. Travelers can rent a car at New York John F Kennedy Intl for an average daily rate of $57 to make sightseeing during their layover a little easier.

  • What are some popular points of interest to see during a layover in New York?

    New York travelers tend to visit Times Square, New York City Center, and Madison Square Garden more than any other notable places. Times Square, New York City Center and Madison Square Garden are located about 6.0 mi, 5.6 mi, and 6.5 mi, respectively from New York LaGuardia if you are interested in checking them out. Travelers can rent a car at New York LaGuardia for an average daily rate of $55 to make sightseeing during their layover a little easier.

  • Where are the least popular layover locations for Portland, Maine to Denver flights?

    The least popular layover on flights from Portland, Maine to Denver is New York.

  • Can I find deals for flights from Portland to Denver that include hotel bookings?

    Yes. In addition to deals on Portland to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Denver.

  • Can I find deals for business class flights from Portland to Denver?

    Yes. Cheapflights offers flight deals from Portland to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland, Maine to Denver?

    Currently, October is the cheapest month in which you can book a flight from Portland, Maine to Denver (average of $197). Flying from Portland, Maine to Denver in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Westminster
Black Hawk
Winter Park
Lakewood
Broomfield
Silverthorne
Golden
Brighton
Keystone
Frisco
Wheat Ridge
Grand Lake
Idaho Springs
Greeley
Central City
Copper Mountain
Longmont
Thornton
Limon
Dillon

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Top 6 airlines flying from Portland to Denver

Discover the top 6 airlines that operate flights from Portland to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$149Average$253FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$182Average$315FlexibilityNo cancel feeOn-time62%
DeltaCheapest$245Average$390FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$255Average$427FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$317Average$496FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$328Average$541FlexibilityNo cancel feeOn-time69%
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