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Cheap flights from Denver to Portland from $155

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Portland departing on 1/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
9:55 am - 3:38 pmDEN-PWM
3h 43mnonstop
United Airlines Logo
6:00 am - 3:40 pmPWM-DEN
11h 40m2 stops
$284United Airlines
Find Deal
Wed, Nov 26 - Wed, Dec 3
Multiple Airlines Logo
12:59 am - 10:41 amDEN-PWM
31h 42m2 stops
Multiple Airlines Logo
11:21 am - 8:40 pmPWM-DEN
11h 19m1 stop
$285Multiple Airlines
Find Deal
Wed, Dec 3 - Mon, Dec 8
Delta Logo
6:46 am - 4:03 pmDEN-PWM
7h 17m1 stop
Delta Logo
6:08 am - 12:11 pmPWM-DEN
8h 03m1 stop
$289Delta
Find Deal
Thu, Dec 4 - Mon, Dec 8
American Airlines Logo
10:21 am - 11:37 pmDEN-PWM
11h 16m2 stops
American Airlines Logo
6:00 am - 11:11 amPWM-DEN
7h 11m1 stop
$294American Airlines
Find Deal
Wed, Dec 3 - Sun, Dec 7
American Airlines Logo
12:34 pm - 10:54 pmDEN-PWM
8h 20m2 stops
American Airlines Logo
5:20 am - 3:16 pmPWM-DEN
11h 56m2 stops
$299American Airlines
Find Deal
Thu, Jan 8 - Sun, Jan 11
United Airlines Logo
10:05 am - 3:48 pmDEN-PWM
3h 43mnonstop
United Airlines Logo
6:00 am - 1:58 pmPWM-DEN
9h 58m1 stop
$304United Airlines
Find Deal
Thu, Nov 27 - Thu, Dec 4
United Airlines Logo
10:05 am - 3:48 pmDEN-PWM
3h 43mnonstop
United Airlines Logo
6:00 am - 3:40 pmPWM-DEN
11h 40m2 stops
$309United Airlines
Find Deal
Thu, Nov 27 - Thu, Dec 4
Southwest Logo
5:30 am - 2:25 pmDEN-PWM
6h 55m1 stop
Southwest Logo
5:30 am - 10:20 amPWM-DEN
6h 50m1 stop
$363Southwest
Find Deal
Fri, Dec 12 - Fri, Dec 19
Southwest Logo
7:00 am - 2:55 pmDEN-PWM
5h 55m1 stop
Southwest Logo
12:45 pm - 6:00 pmPWM-DEN
7h 15m1 stop
$373Southwest
Find Deal
Wed, Dec 17 - Wed, Dec 24
Delta Logo
7:00 am - 3:56 pmDEN-PWM
6h 56m1 stop
Delta Logo
6:30 am - 11:03 amPWM-DEN
30h 33m1 stop
$416Delta
Find Deal
Tue, Mar 3 - Thu, Mar 5

American Airlines flights from Denver to Portland, Maine

Our best American Airlines deals on Denver to Portland, Maine flight tickets
American Airlines
Dec 3
DEN10:21 amDenver Intl
11h 16m
2 stops
PWM11:37 pmPortland
Dec 7
PWM6:00 amPortland
7h 11m
1 stop
DEN11:11 amDenver Intl
$294
Find similar
American Airlines
Jan 8
DEN12:34 pmDenver Intl
8h 20m
2 stops
PWM10:54 pmPortland
Jan 11
PWM5:20 amPortland
11h 56m
2 stops
DEN3:16 pmDenver Intl
$299
Find similar
American Airlines
Dec 3
DEN6:00 amDenver Intl
10h 15m
2 stops
PWM6:15 pmPortland
Dec 7
PWM6:00 amPortland
11h 48m
2 stops
DEN3:48 pmDenver Intl
$334
Find similar

Southwest flights from Denver to Portland, Maine

Our best Southwest deals on Denver to Portland, Maine flight tickets
Southwest
Dec 12
DEN5:30 amDenver Intl
6h 55m
1 stop
PWM2:25 pmPortland
Dec 19
PWM5:30 amPortland
6h 50m
1 stop
DEN10:20 amDenver Intl
$363
Find similar
Southwest
Dec 17
DEN7:00 amDenver Intl
5h 55m
1 stop
PWM2:55 pmPortland
Dec 24
PWM12:45 pmPortland
7h 15m
1 stop
DEN6:00 pmDenver Intl
$373
Find similar
Southwest
Dec 17
DEN7:00 amDenver Intl
5h 55m
1 stop
PWM2:55 pmPortland
Dec 24
PWM12:45 pmPortland
9h 00m
2 stops
DEN7:45 pmDenver Intl
$378
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Denver to Portland, Maine 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, momondo users made 832,500 searches. Data last updated October 30, 2025.
Use the filters below to find and compare flights from Denver to Portland, Maine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Wed 11/26

9:55 am-3:38 pm

Nonstop3h 43m

Portland

Wed 12/3

6:00 am-3:40 pm

2 stops11h 40m

$284

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Wed 12/3

12:59 am-10:41 am

2 stops31h 42m

Portland

Mon 12/8

11:21 am-8:40 pm

1 stop11h 19m

$285

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Thu 12/4

6:46 am-4:03 pm

1 stop7h 17m

Portland

Mon 12/8

6:08 am-12:11 pm

1 stop8h 03m

$289

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Wed 12/3

10:21 am-11:37 pm

2 stops11h 16m

Portland

Sun 12/7

6:00 am-11:11 am

1 stop7h 11m

$294

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Thu 1/8

12:34 pm-10:54 pm

2 stops8h 20m

Portland

Sun 1/11

5:20 am-3:16 pm

2 stops11h 56m

$299

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Thu 11/27

10:05 am-3:48 pm

Nonstop3h 43m

Portland

Thu 12/4

6:00 am-1:58 pm

1 stop9h 58m

$304

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Thu 11/27

10:05 am-3:48 pm

Nonstop3h 43m

Portland

Thu 12/4

6:00 am-3:40 pm

2 stops11h 40m

$309

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Fri 12/12

5:30 am-2:25 pm

1 stop6h 55m

Portland

Fri 12/19

5:30 am-10:20 am

1 stop6h 50m

$363

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Wed 12/17

7:00 am-2:55 pm

1 stop5h 55m

Portland

Wed 12/24

12:45 pm-6:00 pm

1 stop7h 15m

$373

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Tue 3/3

7:00 am-3:56 pm

1 stop6h 56m

Portland

Thu 3/5

6:30 am-11:03 am

1 stop30h 33m

$416

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Portland from

How to get the cheapest flight ticket from Denver to Portland, Maine

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Portland, Maine?

The cheapest month to fly to Portland, Maine from Denver is in November. Flight prices, which tend to average around $376, are often lower during this time because this is during the off-season. If you aren’t able to travel to Portland, Maine during the month of November, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $395.

What is the cheapest day to depart on your flight to Portland, Maine?

On average, the least expensive day to fly to Portland, Maine from Denver is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $564. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Denver because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $757.

What is the cheapest time of day to depart on your flight to Portland, Maine?

In the evening is the cheapest time of day to fly from Denver to Portland, Maine when you can find flight prices for as low as $368. Flying to Portland, Maine in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $619. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Denver Intl to Portland flight route?

Fly from Denver Intl to Portland for the best Denver Intl - Portland flight prices

How far in advance should I book a flight to Portland, Maine?

You are more likely to see cheaper flights to Portland, Maine from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland, Maine for around $451 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland, Maine from Denver for as low as $362 on momondo.

What cabin class options are available on Denver Intl to Portland flights?

There are 4 cabin classes available to choose from on Denver Intl to Portland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Denver to Portland, Maine flights?

You could potentially save up to 46% on your flight if you consider stops on a Denver to Portland, Maine flight.

How have Denver to Portland, Maine flight prices changed over time?

As of October 2025, prices for Denver to Portland, Maine flights are approximately 11% more expensive when compared to flights at the same time last year.

When to book flights from Denver to Portland, Maine

Are you open to changing your travel dates? Check out the ideal times to fly from Denver to Portland, Maine according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Denver to Portland, Maine (DEN to PWM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Denver to Portland, Maine

Best Price Found

$308

Fastest flight time

3h 43m

Direct flights

Every day

Airports in Portland, Maine

1 airport
The best one-way flight to Portland, Maine from Denver in the past 72 hours is $308. The best round-trip flight deal from Denver to Portland, Maine found on momondo in the last 72 hours is $279.
The fastest flight from Denver to Portland, Maine takes 3h 43m
Direct flights go from Denver to Portland, Maine every day.
There is 1 airport near Portland, Maine: Portland (PWM)
Search flight deals

  • How far is Denver Intl to Portland by plane?

    Portland is 1797.3 mi away from Denver Intl. 3h 43m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Denver Intl Airport to Portland Airport?

    Prices for flights from Denver Intl Airport to Portland Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Denver Intl Airport to Portland Airport?

  • How old do you have to be to fly from Denver Intl Airport to Portland Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Denver Intl Airport to Portland Airport.

  • What documentation or ID do you need to fly to Portland Airport?

    The required travel and health documents for your Portland Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portland Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Denver to Portland, Maine?

  • What is the most popular airline from Denver to Portland, Maine?

Best airlines flying from Denver to Portland, Maine

Compare and see reviews for airlines that fly from Denver to Portland, Maine with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $129Free CancellationRating
5.8
3,123 reviews
Search Frontier flights
American AirlinesPriceFrom $192Free CancellationRating
7.2
11,030 reviews
Search American Airlines flights
JetBluePriceFrom $249Free CancellationRating
7.2
2,906 reviews
Search JetBlue flights
DeltaPriceFrom $249Free CancellationRating
7.9
7,993 reviews
Search Delta flights
SouthwestPriceFrom $274Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
United AirlinesPriceFrom $288Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights

  • United Airlines Flights From Denver to Portland, Maine

    United Airlines is one of the most popular airlines flying from Denver to Portland, Maine, operating 3 flights/week on average for this route. A good United Airlines flight deal for Denver to Portland, Maine starts from $288 round-trip, up to an average price of $570. Our users have rated United Airlines at 7.4/10.

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Boothbay Harbor
Jackson
Conway
Freeport
Lewiston
Brunswick
Bartlett
Auburn
Gorham
Intervale
Windham
Oxford
Bath
Georgetown
Falmouth
Tamworth

Why use momondo?

Why should I use momondo to find a flight deal from Denver to Portland?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Denver to Portland for you.

Can I find flights from Denver to Portland with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Denver to Portland flights to just show those with flexible booking policies.

How can momondo help me find flights from Denver to Portland?

Once you have performed a search for Denver to Portland flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Denver to Portland right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Portland, momondo offers a useful price alert feature which will track prices for flights to Portland from Denver and alert you when they change.

An easier way to manage your Portland, Maine trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
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