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$134+ 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 7/27. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — DEN
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Denver Intl are usually found in January or April, booked 72 days in advance, depart on a Wednesday or Saturday and return on a Wednesday

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 July 3, 2025.

Round-trip from

$304
(United Airlines)

One-way from

$134
(JetBlue)

Popular in

July

Cheapest in

January

Average price

$545

Good round-trip deal

$504 or less

Good one-way deal

$301 or less
From Portland to Denver Intl
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One-way flight from Portland to Denver Intl
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Highest demand for flights based on searches. 7% potential increase in price ($35 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 July 3, 2025.

This United Airlines deal was found by Cheapflights users on 7/1. 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 8/283:35 pmPWM - DEN
Nonstop4h 25mUnited Airlines
Mon 9/111:59 pmDEN - PWM
1 stop7h 59mUnited Airlines
Deal found 7/1$304
This American Airlines deal was found by Cheapflights users on 7/1. 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.
Thu 8/211:13 pmPWM - DEN
2 stops9h 09mAmerican Airlines
Mon 8/258:34 amDEN - PWM
1 stop7h 12mAmerican Airlines
Deal found 7/1$308
This Delta deal was found by Cheapflights users on 7/3. 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.
Thu 7/246:54 pmPWM - DEN
1 stop7h 26mDelta
Wed 7/3012:21 pmDEN - PWM
1 stop10h 36mDelta
Deal found 7/3$311
This Southwest deal was found by Cheapflights users on 7/2. 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.
Thu 7/315:40 amPWM - DEN
2 stops8h 45mSouthwest
Thu 8/711:25 amDEN - PWM
2 stops9h 55mSouthwest
Deal found 7/2$313
This JetBlue deal was found by Cheapflights users on 7/1. 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 10/92:17 pmPWM - DEN
1 stop10h 47mJetBlue
Tue 10/1411:25 amDEN - PWM
1 stop8h 36mJetBlue
Deal found 7/1$315
This Frontier deal was found by Cheapflights users on 7/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/26:58 pmPWM - DEN
1 stop15h 04mFrontier
Sat 8/96:00 amDEN - PWM
1 stop10h 13mFrontier
Deal found 7/3$316

Cheapflights Fare Finder

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 July 3, 2025.
Use the filters below to find and compare flights from Portland to Denver that are best for you.

Fly from

Portland

Fly to

Denver

Route

Depart

Return

Price

PortlandDenver

PWM - DEN

PWMDEN

Portland

Thu 8/28

3:35 pm-6:00 pm

Nonstop4h 25m

Denver Intl

Mon 9/1

11:59 pm-9:58 am

1 stop7h 59m

$304

PortlandDenver

PWM - DEN

PWMDEN

Portland

Thu 8/21

1:13 pm-8:22 pm

2 stops9h 09m

Denver Intl

Mon 8/25

8:34 am-5:46 pm

1 stop7h 12m

$308

PortlandDenver

PWM - DEN

PWMDEN

Portland

Thu 7/24

6:54 pm-12:20 am

1 stop7h 26m

Denver Intl

Wed 7/30

12:21 pm-12:57 am

1 stop10h 36m

$311

PortlandDenver

PWM - DEN

PWMDEN

Portland

Thu 7/31

5:40 am-12:25 pm

2 stops8h 45m

Denver Intl

Thu 8/7

11:25 am-11:20 pm

2 stops9h 55m

$313

PortlandDenver

PWM - DEN

PWMDEN

Portland

Sat 8/2

6:58 pm-8:02 am

1 stop15h 04m

Denver Intl

Sat 8/9

6:00 am-6:13 pm

1 stop10h 13m

$316

PortlandDenver

PWM - DEN

PWMDEN

Portland

Sun 8/3

6:05 am-10:25 am

1 stop6h 20m

Denver Intl

Tue 8/19

11:54 pm-1:23 pm

1 stop11h 29m

$330

PortlandDenver

PWM - DEN

PWMDEN

Portland

Sun 7/27

6:05 am-10:25 am

1 stop6h 20m

$134

PortlandDenver

PWM - DEN

PWMDEN

Portland

Tue 8/12

4:55 pm-10:35 pm

1 stop7h 40m

$145

PortlandDenver

PWM - DEN

PWMDEN

Portland

Thu 8/7

5:57 pm-10:54 pm

1 stop6h 57m

$159

PortlandDenver

PWM - DEN

PWMDEN

Portland

Sat 7/12

6:58 pm-8:02 am

1 stop15h 04m

$164

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 14 results
1
2

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.

Cheapflights Insights

Everything you need to know about your flight from Portland to Denver

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 June 27, 2025.

Booking 72 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 July 3, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 49% 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.

Weekly flight availability from Portland, Maine to Denver

Explore weekly flight availability from Portland to Denver. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 3, 2025.

The most flights from PWM to DEN are scheduled on a Monday (2 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).

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 July 3, 2025.
Read through reviews of airlines operating flights from Portland to Denver, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,270 reviews

Food

7.0

Overall

8.0

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,270 reviews
Southwest
8.0
Very good
4,270 reviews

Food

7.0

Overall

8.0

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,970 reviews
Southwest
8.0
Very good
4,270 reviews

Food

7.0

Overall

8.0

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,845 reviews
Southwest
8.0
Very good
4,270 reviews

Food

7.0

Overall

8.0

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
JetBlue
7.3
Good
2,916 reviews
Southwest
8.0
Very good
4,270 reviews

Food

7.0

Overall

8.0

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,270 reviews

Food

7.0

Overall

8.0

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

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.

  • What airports do I use to fly from Portland to Denver?

    Denver Intl is the airport most travelers will use when flying to Denver from Portland. Booking flights from Portland (PWM) to Denver Intl (DEN) should be relatively easy as there is 1 daily flight to Denver from 6 different airlines. 4h 25m is how long a flight from Portland to Denver Intl will take if you book a nonstop flight.

  • 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, United Airlines ($304), American Airlines ($308), and Delta ($311) offers the cheapest pricing from Portland, Maine to Denver. You may be able to fly from Portland, Maine to Denver for 33% 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 JetBlue, which is currently one of the cheapest options available, starting at $134. Southwest flights start at $145 while deals on American Airlines start at $159 one-way.

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

    While on average a flight from Portland, Maine to Denver is generally $480, our data shows the cheapest flight currently is $223. When looking at the most popular route, (Portland - Denver Intl), you can expect to pay $270 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.

  • 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 $74 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 Philadelphia.

  • 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
Cripple Creek
Golden
Brighton
Silverthorne
Thornton
Frisco
Broomfield
Grand Lake
Manitou Springs
Central City
Fort Morgan
Glendale
Copper Mountain
Wheat Ridge
Longmont
Idaho Springs

Browse thousands of different options on Cheapflights for your next trip

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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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$149Average$256FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$226Average$341FlexibilityNo cancel feeOn-time62%
DeltaCheapest$236Average$349FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$256Average$380FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$308Average$467FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$328Average$550FlexibilityNo cancel feeOn-time69%

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