How long does it take to fly to Denver?

Flight times vary depending on what airport in Maine you fly out of and what airport in Denver you fly into. For example, flying from Portland to Denver takes 4h 45m on average. On the other hand, flying from Bangor to Denver takes 7h 23m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

What airlines fly to Denver?

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Denver from Maine according to our data. United Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Denver. Keep in mind that there are 6 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.

How many flights depart from Maine to Denver on average per week?

91 flights are operational weekly from Maine to Denver as of November 2025. The most popular departure day for this route is Mon, with 18% of flights per week taking off on this day.

What is the cheapest airline that flies from Maine to Denver Intl?

Frontier, Southwest, and JetBlue are the most popular carriers operating from Maine to Denver Intl

How many flights depart from Maine to Denver on average per day?

As of November 2025, there are 13 flights per day flying from Maine to Denver. The most common time of day flights depart is 3:00PM, with 87% of flights taking off in the afternoon.

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

Prices for flights from Maine to Denver Intl Airport were last updated today.

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

As of November 2025, there are 8 operators available to choose from for flights from Maine to Denver Intl Airport.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Maine to Denver Intl Airport.

What documentation or ID do you need to fly to Denver Intl Airport?

The required travel and health documents for your Denver Intl 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 Denver Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$100 Cheap Flights from Maine to Denver in 2025/26

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Find the cheapest flights from Maine to Denver

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

3:43 pm - 12:21 pmBOS-DEN

22h 38m2 stops

12:59 am - 1:04 amDEN-BOS

22h 05m1 stop

$175Multiple Airlines

Find Deal

Sun, Jan 25 - Sat, Jan 31

11:28 am - 9:38 pmBOS-DEN

12h 10m1 stop

6:31 pm - 9:57 amDEN-BOS

13h 26m1 stop

$176Frontier

Find Deal

Thu, Dec 4 - Thu, Dec 11

7:35 am - 10:26 amBOS-DEN

4h 51mnonstop

11:36 am - 5:36 pmDEN-BOS

4h 00mnonstop

$177Delta

Find Deal

Fri, Dec 5 - Thu, Dec 11

7:15 am - 10:05 amBOS-DEN

4h 50mnonstop

2:10 pm - 8:00 pmDEN-BOS

3h 50mnonstop

$178United Airlines

Find Deal

Wed, Dec 3 - Fri, Dec 5

8:08 am - 4:41 pmBOS-DEN

10h 33m1 stop

12:16 am - 1:14 amDEN-BOS

22h 58m1 stop

$179Frontier

Find Deal

Mon, Dec 22 - Thu, Dec 25

11:28 am - 9:38 pmBOS-DEN

12h 10m1 stop

12:59 am - 10:22 amDEN-BOS

7h 23m1 stop

$180Frontier

Find Deal

Thu, Dec 4 - Sat, Dec 6

6:45 am - 9:25 amBOS-DEN

4h 40mnonstop

8:05 am - 4:45 pmDEN-BOS

6h 40m2 stops

$182Southwest

Find Deal

Fri, Dec 5 - Wed, Dec 10

6:50 pm - 8:46 amBGR-DEN

15h 56m1 stop

9:42 am - 6:10 pmDEN-BGR

54h 28m2 stops

$252Multiple Airlines

Find Deal

Mon, Nov 24 - Wed, Dec 3

12:45 pm - 6:00 pmPWM-DEN

7h 15m1 stop

2:45 pm - 10:15 pmDEN-PWM

5h 30m1 stop

$289Southwest

Find Deal

Tue, Dec 9 - Tue, Dec 16

3:00 pm - 10:49 pmBGR-DEN

9h 49m1 stop

10:45 am - 11:24 pmDEN-BGR

10h 39m2 stops

$359Delta

Find Deal

Tue, Mar 24 - Tue, Mar 31

Southwest flights from Maine to Denver

Our best Southwest deals on Maine to Denver flight tickets

Southwest

Dec 5

BOS6:45 amBoston Logan Intl

4h 40m

DEN9:25 amDenver Intl

Dec 10

DEN8:05 amDenver Intl

6h 40m

2 stops

BOS4:45 pmBoston Logan Intl

$182

Find similar

Southwest

Dec 5

BOS2:10 pmBoston Logan Intl

7h 45m

1 stop

DEN7:55 pmDenver Intl

Dec 6

DEN11:55 pmDenver Intl

6h 10m

1 stop

BOS8:05 amBoston Logan Intl

$187

Find similar

Southwest

Jan 1

BOS6:45 amBoston Logan Intl

4h 40m

DEN9:25 amDenver Intl

Jan 5

DEN6:15 pmDenver Intl

3h 50m

BOS12:05 amBoston Logan Intl

$189

Find similar

Frontier flights from Maine to Denver

Our best Frontier deals on Maine to Denver flight tickets

Frontier

Nov 22

BOS9:57 amBoston Logan Intl

11h 47m

1 stop

DEN7:44 pmDenver Intl

Dec 4

DEN1:42 pmDenver Intl

15h 51m

2 stops

BOS7:33 amBoston Logan Intl

$175

Find similar

Frontier

Dec 4

BOS11:28 amBoston Logan Intl

12h 10m

1 stop

DEN9:38 pmDenver Intl

Dec 11

DEN6:31 pmDenver Intl

13h 26m

1 stop

BOS9:57 amBoston Logan Intl

$176

Find similar

Frontier

Dec 22

BOS8:08 amBoston Logan Intl

10h 33m

1 stop

DEN4:41 pmDenver Intl

Dec 25

DEN12:16 amDenver Intl

22h 58m

1 stop

BOS1:14 amBoston Logan Intl

$179

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Sun 1/25

3:43 pm-12:21 pm

2 stops22h 38m

Denver Intl

Sat 1/31

12:59 am-1:04 am

1 stop22h 05m

$175

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Thu 12/4

11:28 am-9:38 pm

1 stop12h 10m

Denver Intl

Thu 12/11

6:31 pm-9:57 am

1 stop13h 26m

$176

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Fri 12/5

7:35 am-10:26 am

Nonstop4h 51m

Denver Intl

Thu 12/11

11:36 am-5:36 pm

Nonstop4h 00m

$177

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Wed 12/3

7:15 am-10:05 am

Nonstop4h 50m

Denver Intl

Fri 12/5

2:10 pm-8:00 pm

Nonstop3h 50m

$178

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Mon 12/22

8:08 am-4:41 pm

1 stop10h 33m

Denver Intl

Thu 12/25

12:16 am-1:14 am

1 stop22h 58m

$179

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Thu 12/4

11:28 am-9:38 pm

1 stop12h 10m

Denver Intl

Sat 12/6

12:59 am-10:22 am

1 stop7h 23m

$180

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Fri 12/5

6:45 am-9:25 am

Nonstop4h 40m

Denver Intl

Wed 12/10

8:05 am-4:45 pm

2 stops6h 40m

$182

BangorDenver

BGR - DEN

BGRDEN

Bangor

Mon 11/24

6:50 pm-8:46 am

1 stop15h 56m

Denver Intl

Wed 12/3

9:42 am-6:10 pm

2 stops54h 28m

$252

PortlandDenver

PWM - DEN

PWMDEN

Portland

Tue 12/9

12:45 pm-6:00 pm

1 stop7h 15m

Denver Intl

Tue 12/16

2:45 pm-10:15 pm

1 stop5h 30m

$289

BangorDenver

BGR - DEN

BGRDEN

Bangor

Tue 3/24

3:00 pm-10:49 pm

1 stop9h 49m

Denver Intl

Tue 3/31

10:45 am-11:24 pm

2 stops10h 39m

$359

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Maine to Denver

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

Prices

Airlines

Other information

What is the cheapest month to fly to Denver?

The cheapest month to fly to Denver from Maine is in January. Flight prices, which tend to average around $347, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in January, then you should wait until April to fly from Maine, when ticket prices are also cheap, with an average price of $392.

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Friday when prices can be found for as low as $515. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $762.

What is the cheapest time of day to depart on your flight to Denver?

The cheapest time of day to fly to Denver is in the evening when flights can be purchased for as low as $361. Flights in the morning are often more expensive with an average ticket price of $762.

What is the cheapest Maine to Denver Intl flight route?

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

How far in advance should I book a flight to Denver?

You are more likely to see cheaper flights to Denver from Maine when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $442 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Maine for as low as $371 on momondo.

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

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

Cheap Maine to Denver flight deals and tips

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

Best Price Found	$164
Fastest flight time	4h 30m
Direct flights	Every day
Airports in Denver	1 airport

The best one-way flight to Denver from Maine in the past 72 hours is $164. The best round-trip flight deal from Maine to Denver found on momondo in the last 72 hours is $374.

The fastest flight from Maine to Denver takes 4h 30m

Direct flights go from Maine to Denver every day.

There is 1 airport near Denver: Denver Intl (DEN)

Search flight deals

When did momondo last update prices for flights from Maine to Denver Intl Airport?
Prices for flights from Maine to Denver Intl Airport were last updated today.
How many operators does momondo search for flights from Maine to Denver Intl Airport?
As of November 2025, there are 8 operators available to choose from for flights from Maine to Denver Intl Airport.
How old do you have to be to fly from Maine to Denver Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Maine to Denver Intl Airport.
What documentation or ID do you need to fly to Denver Intl Airport?
The required travel and health documents for your Denver Intl 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 Denver Intl 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 Maine to Denver?
momondo data reveals that the most frequently booked plane model on the route from Maine to Denver is Boeing 737-800, representing 81.12% of all bookings. The subsequent popular models are Airbus A319 at 7.69%, Boeing 737-700 at 2.10%, and Airbus A320-100/200 at 2.10%.

Best airlines flying from Maine to Denver

Compare and see reviews for airlines that fly from Maine to Denver with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $149	Free Cancellation	Rating 5.8 3,113 reviews	Search Frontier flights
JetBlue	PriceFrom $226	Free Cancellation	Rating 7.2 2,906 reviews	Search JetBlue flights
American Airlines	PriceFrom $254	Free Cancellation	Rating 7.2 11,049 reviews	Search American Airlines flights
Delta	PriceFrom $256	Free Cancellation	Rating 7.9 8,008 reviews	Search Delta flights
United Airlines	PriceFrom $290	Free Cancellation	Rating 7.4 9,015 reviews	Search United Airlines flights
Southwest	PriceFrom $297	Free Cancellation	Rating 8.0 4,235 reviews	Search Southwest flights

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Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Maine to Denver. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. All flights to Denver from Maine on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Denver from Maine. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Maine to Denver now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Denver and let you know when they change.