What is the cheapest airline that flies from Colorado to Maine?

United Airlines, Delta, and JetBlue are the most popular carriers operating from Colorado to Maine

How long is the flight from Colorado to Maine?

If you’re flying from a popular airport in Colorado, such as Denver or Colorado Springs, and flying into Maine, then you can expect flight times to average 3h 55m and 6h 41m, respectively.

What airlines fly to Maine?

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Maine from Colorado according to our data. United Airlines is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Maine. Keep in mind that there are 6 different airlines that fly to Maine on a routine basis, so you have a few additional options to choose from.

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

The number of flights available between Colorado and Maine is 59 per week as of December 2025. The most frequent departure day is Thu, with 29% of weekly flights leaving on this day.

When did momondo last update prices for flights from Colorado to Maine?

Prices for flights from Colorado to Maine are updated daily.

How many operators does momondo search for flights from Colorado to Maine?

As of December 2025, there are 6 operators available to choose from for flights from Colorado to Maine.

How old do you have to be to fly from Colorado to Maine?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Colorado to Maine.

What documentation or ID do you need to fly to Maine?

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

$94 Cheap Flights from Colorado to Maine in 2025/26

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Cheap round-trip flights

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6:00 am - 7:53 am

DEN

BOS

23h 53m1 stop

3:43 pm - 1:37 am

BOS

DEN

35h 54m2 stops

$168Multiple Airlines

Thu, Jan 8 - Tue, Jan 13

6:00 am - 7:53 am

DEN

BOS

23h 53m1 stop

3:43 pm - 10:22 am

BOS

DEN

44h 39m2 stops

$170Multiple Airlines

Thu, Jan 8 - Thu, Jan 15

3:17 pm - 11:30 pm

COS

BOS

6h 13m1 stop

5:25 am - 12:50 pm

BOS

COS

9h 25m1 stop

$227American Airlines

Mon, Feb 9 - Wed, Feb 18

3:17 pm - 11:30 pm

COS

BOS

6h 13m1 stop

6:45 am - 12:50 pm

BOS

COS

8h 05m1 stop

$228American Airlines

Mon, Feb 9 - Wed, Feb 18

6:40 am - 3:54 pm

DEN

BGR

7h 14m1 stop

1:07 pm - 10:55 pm

BGR

DEN

11h 48m2 stops

$246Delta

Thu, Jan 15 - Sun, Jan 18

1:32 pm - 9:55 pm

MTJ

BOS

6h 23m1 stop

9:30 am - 8:17 pm

BOS

MTJ

12h 47m2 stops

$254United Airlines

Fri, Jan 16 - Fri, Jan 23

11:33 am - 8:05 pm

COS

BOS

6h 32m1 stop

7:25 am - 12:22 pm

BOS

COS

6h 57m1 stop

$257United Airlines

Wed, Jan 14 - Wed, Jan 21

6:40 am - 4:50 pm

COS

BOS

8h 10m1 stop

1:20 pm - 10:35 pm

BOS

COS

11h 15m2 stops

$262Southwest

Wed, Jan 14 - Wed, Jan 21

6:20 am - 2:55 pm

DEN

PWM

6h 35m1 stop

3:30 pm - 8:10 pm

PWM

DEN

6h 40m1 stop

$270Southwest

Wed, Jan 7 - Sat, Jan 10

5:55 pm - 6:09 am

COS

BOS

10h 14m1 stop

5:40 am - 10:02 am

BOS

COS

6h 22m1 stop

$277Delta

Wed, Jun 3 - Wed, Jun 10

United Airlines flights from Colorado to Maine

Our best United Airlines deals on Colorado to Maine flight tickets

United Airlines

Jan 7

DEN5:45 pmDenver Intl

4h 01m

BOS11:46 pmBoston Logan Intl

Jan 11

BOS4:49 pmBoston Logan Intl

4h 45m

DEN7:34 pmDenver Intl

$202

Find similar

United Airlines

Jan 8

DEN9:40 amDenver Intl

3h 57m

BOS3:37 pmBoston Logan Intl

Jan 9

BOS10:30 amBoston Logan Intl

7h 22m

1 stop

DEN3:52 pmDenver Intl

$212

Find similar

United Airlines

Jan 16

MTJ1:32 pmMontrose County

6h 23m

1 stop

BOS9:55 pmBoston Logan Intl

Jan 23

BOS9:30 amBoston Logan Intl

12h 47m

2 stops

MTJ8:17 pmMontrose County

$254

Find similar

Frontier flights from Colorado to Maine

Our best Frontier deals on Colorado to Maine flight tickets

Frontier

Feb 5

DEN8:50 amDenver Intl

14h 23m

1 stop

BOS1:13 amBoston Logan Intl

Feb 9

BOS6:00 amBoston Logan Intl

31h 54m

1 stop

DEN11:54 amDenver Intl

$171

Find similar

Frontier

Jan 7

DEN6:00 amDenver Intl

17h 19m

1 stop

BOS1:19 amBoston Logan Intl

Jan 11

BOS8:48 amBoston Logan Intl

15h 01m

1 stop

DEN9:49 pmDenver Intl

$173

Find similar

Frontier

Jan 7

DEN6:00 amDenver Intl

17h 19m

1 stop

BOS1:19 amBoston Logan Intl

Jan 15

BOS12:10 pmBoston Logan Intl

12h 57m

1 stop

DEN11:07 pmDenver Intl

$174

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Thu 1/8

6:00 am-7:53 am

1 stop23h 53m

Boston Logan Intl

Tue 1/13

3:43 pm-1:37 am

2 stops35h 54m

$168

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Thu 1/8

6:00 am-7:53 am

1 stop23h 53m

Boston Logan Intl

Thu 1/15

3:43 pm-10:22 am

2 stops44h 39m

$170

Colorado SpringsBoston

COS - BOS

COSBOS

Colorado Springs

Mon 2/9

3:17 pm-11:30 pm

1 stop6h 13m

Boston Logan Intl

Wed 2/18

5:25 am-12:50 pm

1 stop9h 25m

$227

Colorado SpringsBoston

COS - BOS

COSBOS

Colorado Springs

Mon 2/9

3:17 pm-11:30 pm

1 stop6h 13m

Boston Logan Intl

Wed 2/18

6:45 am-12:50 pm

1 stop8h 05m

$228

DenverBangor

DEN - BGR

DENBGR

Denver Intl

Thu 1/15

6:40 am-3:54 pm

1 stop7h 14m

Bangor

Sun 1/18

1:07 pm-10:55 pm

2 stops11h 48m

$246

MontroseBoston

MTJ - BOS

MTJBOS

Montrose County

Fri 1/16

1:32 pm-9:55 pm

1 stop6h 23m

Boston Logan Intl

Fri 1/23

9:30 am-8:17 pm

2 stops12h 47m

$254

Colorado SpringsBoston

COS - BOS

COSBOS

Colorado Springs

Wed 1/14

11:33 am-8:05 pm

1 stop6h 32m

Boston Logan Intl

Wed 1/21

7:25 am-12:22 pm

1 stop6h 57m

$257

Colorado SpringsBoston

COS - BOS

COSBOS

Colorado Springs

Wed 1/14

6:40 am-4:50 pm

1 stop8h 10m

Boston Logan Intl

Wed 1/21

1:20 pm-10:35 pm

2 stops11h 15m

$262

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Wed 1/7

6:20 am-2:55 pm

1 stop6h 35m

Portland

Sat 1/10

3:30 pm-8:10 pm

1 stop6h 40m

$270

Colorado SpringsBoston

COS - BOS

COSBOS

Colorado Springs

Wed 6/3

5:55 pm-6:09 am

1 stop10h 14m

Boston Logan Intl

Wed 6/10

5:40 am-10:02 am

1 stop6h 22m

$277

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How to get the cheapest flight ticket from Colorado to 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

Prices

Airlines

Other information

What is the cheapest month to fly to Maine?

The cheapest month to fly to Maine from Colorado is in January. Flight prices, which tend to average around $217, are often lower during this time because this is during the off-season. If you aren’t able to travel to Maine during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $287.

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

The cheapest day to depart from Colorado to Maine is on a Wednesday. Travelers who choose to depart for Maine on a Wednesday will often find tickets for as low as $310. Flights from Colorado to Maine on a Monday will generally be more expensive and average around $386. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

The cheapest time of day to fly to Maine is in the evening when flights can be purchased for as low as $276. Flights at noon are often more expensive with an average ticket price of $379.

What is the cheapest Colorado to Maine flight route?

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

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

You are more likely to see cheaper flights to Maine from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to Maine for around $307 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Maine from Colorado for as low as $278 on momondo.

What cabin class options are available on Colorado to Maine flights?

There are 4 cabin classes available to choose from on Colorado to Maine 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 Colorado to Maine flights?

You could potentially save up to 13% on your flight if you consider stops on a Colorado to Maine flight.

Cheap Colorado to Maine flight deals and tips

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

Best Price Found	$363
Fastest flight time	3h 47m
Direct flights	Every day
Airports in Maine	49 airports

The best one-way flight to Maine from Colorado in the past 72 hours is $363. The best round-trip flight deal from Colorado to Maine found on momondo in the last 72 hours is $534.

The fastest flight from Colorado to Maine takes 3h 47m

Direct flights go from Colorado to Maine every day.

There are 49 airports in Maine. From Colorado there are direct flights to Boston Logan Intl (BOS).

Search flight deals

When did momondo last update prices for flights from Colorado to Maine?
Prices for flights from Colorado to Maine are updated daily.
How many operators does momondo search for flights from Colorado to Maine?
As of December 2025, there are 6 operators available to choose from for flights from Colorado to Maine.
How old do you have to be to fly from Colorado to Maine?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Colorado to Maine.
What documentation or ID do you need to fly to Maine?
The required travel and health documents for your Maine 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 Maine. 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 Colorado to Maine?
momondo data reveals that the most frequently booked plane model on the route from Colorado to Maine is Boeing 737 MAX 8, representing 50.96% of all bookings. The subsequent popular models are Boeing 737-800 at 14.42%, Boeing 737 MAX 9 at 13.46%, and Boeing 737-700 at 5.77%.

Best airlines flying from Colorado to Maine

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $129	Free Cancellation	Rating 5.8 3,082 reviews	Search Frontier flights
American Airlines	PriceFrom $192	Free Cancellation	Rating 7.2 11,053 reviews	Search American Airlines flights
JetBlue	PriceFrom $249	Free Cancellation	Rating 7.2 2,895 reviews	Search JetBlue flights
Delta	PriceFrom $249	Free Cancellation	Rating 7.9 8,006 reviews	Search Delta flights
Southwest	PriceFrom $272	Free Cancellation	Rating 7.9 4,249 reviews	Search Southwest flights
United Airlines	PriceFrom $288	Free Cancellation	Rating 7.4 9,092 reviews	Search United Airlines flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Maine from Colorado.

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

All flight searches from Colorado to Maine on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Maine from Colorado.

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

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

An easier way to manage your 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.

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Sat 1/17

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Find better results for your trip to Maine

Popular cities in Maine

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Flights to Orlandofrom $40

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Flights to Las Vegasfrom $49

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Flights to Bostonfrom $51

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Flights to Dallasfrom $57

Flights to Seattlefrom $58

Cheap flights from Colorado to Maine from $94

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Maine departing on 1/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

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Price Alerts

Find the cheapest flights from Colorado to Maine

Cheap round-trip flights

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Cheap last minute flights

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United Airlines flights from Colorado to Maine

Our best United Airlines deals on Colorado to Maine flight tickets

Frontier flights from Colorado to Maine

Our best Frontier deals on Colorado to Maine flight tickets

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Use the filters below to find and compare flights from Colorado to Maine that are best for you.

See travel insights to Maine from

How to get the cheapest flight ticket from Colorado to Maine

What is the cheapest month to fly to Maine?

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

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

The cheapest time of day to fly to Maine is in the evening when flights can be purchased for as low as $276. Flights at noon are often more expensive with an average ticket price of $379.

What is the cheapest Colorado to Maine flight route?

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

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

What cabin class options are available on Colorado to Maine flights?

There are 4 cabin classes available to choose from on Colorado to Maine 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 Colorado to Maine flights?

You could potentially save up to 13% on your flight if you consider stops on a Colorado to Maine flight.

What is the cheapest airline that flies from Colorado to Maine?

United Airlines, Delta, and JetBlue are the most popular carriers operating from Colorado to Maine

What airlines fly to Maine?

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

The number of flights available between Colorado and Maine is 59 per week as of December 2025. The most frequent departure day is Thu, with 29% of weekly flights leaving on this day.

How long is the flight from Colorado to Maine?

If you’re flying from a popular airport in Colorado, such as Denver or Colorado Springs, and flying into Maine, then you can expect flight times to average 3h 55m and 6h 41m, respectively.

Cheap Colorado to Maine flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Maine

When did momondo last update prices for flights from Colorado to Maine?

How many operators does momondo search for flights from Colorado to Maine?

How old do you have to be to fly from Colorado to Maine?

What documentation or ID do you need to fly to Maine?

What is the most popular plane model from Colorado to Maine?

Best airlines flying from Colorado to Maine

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

Why use momondo?

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

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

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

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

An easier way to manage your 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Maine

Popular cities in Maine

Popular flights according to clicks in the last 7 days on momondo