Maine

$114+ Cheap flights from Colorado to Maine

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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PWM
Apr 21 — Apr 281
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Cheap flight deals from Colorado to Maine

Cheapest flights from Colorado to Maine
Explore the most affordable flight options available from Colorado to Maine. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 22, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 3/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1011:59 pm
DEN
-
BOS
1 stop9h 46m
Frontier
Mon 4/1312:45 pm
BOS
-
DEN
1 stop25h 25m
Frontier
Deal found 3/22$184
This Frontier deal was found by Cheapflights users on 3/21. 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.
Tue 4/281:09 pm
DEN
-
BOS
1 stop10h 22m
Frontier
Mon 5/412:42 pm
BOS
-
DEN
1 stop11h 47m
Frontier
Deal found 3/21$185
This Travelocity deal was found by Cheapflights users on 3/21. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/711:31 pm
DEN
-
BOS
Nonstop3h 48m
Multiple Airlines
Tue 4/146:00 am
BOS
-
DEN
1 stop8h 09m
Multiple Airlines
Deal found 3/21$194
This Booking.com deal was found by Cheapflights users on 3/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:03 am
DEN
-
BOS
1 stop27h 03m
Frontier
Tue 5/1210:07 am
BOS
-
DEN
1 stop24h 17m
Frontier
Deal found 3/21$197
This CheapOair deal was found by Cheapflights users on 3/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1011:31 pm
DEN
-
BOS
Nonstop3h 48m
Multiple Airlines
Tue 4/146:00 am
BOS
-
DEN
1 stop8h 09m
Multiple Airlines
Deal found 3/22$199
This Expedia deal was found by Cheapflights users on 3/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/311:59 pm
DEN
-
BOS
1 stop9h 02m
Frontier
Sun 4/511:31 am
BOS
-
DEN
1 stop22h 50m
Frontier
Deal found 3/20$200
This SmartFares deal was found by Cheapflights users on 3/21. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/411:25 pm
DEN
-
BOS
Nonstop3h 52m
JetBlue
Sat 4/117:50 pm
BOS
-
DEN
Nonstop4h 46m
JetBlue
Deal found 3/21$201
This Cheapflightsfares deal was found by Cheapflights users on 3/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/61:04 pm
DEN
-
BOS
1 stop10h 22m
Frontier
Wed 5/138:44 am
BOS
-
DEN
1 stop7h 48m
Frontier
Deal found 3/22$204
This Cheapflightsfares deal was found by Cheapflights users on 3/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1011:59 pm
DEN
-
BOS
1 stop9h 20m
Frontier
Tue 4/146:00 am
BOS
-
DEN
1 stop8h 09m
Frontier
Deal found 3/22$205
This Cheapflightsfares deal was found by Cheapflights users on 3/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/291:09 pm
DEN
-
BOS
1 stop10h 22m
Frontier
Mon 5/412:42 pm
BOS
-
DEN
1 stop11h 47m
Frontier
Deal found 3/21$209
This Frontier deal was found by Cheapflights users on 3/18. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/181:09 pm
DEN
-
BOS
1 stop10h 22m
Frontier
Wed 4/2212:55 pm
BOS
-
DEN
1 stop11h 34m
Frontier
Deal found 3/18$210
This American Airlines deal was found by Cheapflights users on 3/21. 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.
Wed 4/85:41 am
COS
-
BOS
1 stop7h 49m
American Airlines
Sat 4/115:54 pm
BOS
-
COS
1 stop7h 38m
American Airlines
Deal found 3/21$237

Find flight deals from Colorado to Maine

Keep the following information in mind while searching for Colorado to Maine flight deals. Data was last updated March 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$184
(Cheapflightsfares)

One-way from

$114
(American Airlines)

Popular in

July

Cheapest in

January

Average price

$448

Good round-trip deal

$528 or less

Good one-way deal

$371 or less
Provider with most accurate pricing for Denver Intl-Portland flight deals.
Provider most trusted by Cheapflights users for Denver Intl-Portland flights.
From Colorado to Maine
One-way flight from Colorado to Maine
Highest demand for flights based on searches. 12% potential increase in price ($62 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in March 2026
Price to beat on a round-trip flight from Colorado to Maine.
Price to beat on a one-way flight from Colorado to Maine.

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado to 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, Cheapflights users made 2,558,603 searches. Data last updated March 22, 2026.
Use the filters below to find and compare flights from Colorado to Maine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Sat 4/4

7:45 am-1:47 pm

Nonstop4h 02m

Boston Logan Intl

Mon 4/6

6:25 pm-11:59 pm

1 stop7h 34m

$237

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Fri 4/3

1:40 pm-12:45 am

2 stops9h 05m

Boston Logan Intl

Sat 4/11

6:00 pm-10:35 pm

1 stop6h 35m

$252

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Wed 5/27

11:55 pm-8:05 am

1 stop6h 10m

Boston Logan Intl

Sat 5/30

5:15 am-7:45 am

Nonstop4h 30m

$267

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Sat 4/4

5:35 am-4:10 pm

1 stop8h 35m

Boston Logan Intl

Tue 4/7

7:35 am-2:20 pm

2 stops8h 45m

$267

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Fri 4/3

11:35 am-5:32 pm

Nonstop3h 57m

Boston Logan Intl

Sun 4/5

7:30 am-10:24 am

Nonstop4h 54m

$277

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Thu 5/28

1:53 pm-11:51 pm

1 stop7h 58m

Portland

Tue 6/2

5:15 am-10:10 am

1 stop6h 55m

$283

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Sat 4/18

1:25 pm-11:40 pm

2 stops8h 15m

Boston Logan Intl

Wed 4/22

8:10 am-3:10 pm

2 stops9h 00m

$287

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Sat 9/12

11:40 am-5:50 pm

Nonstop4h 10m

Boston Logan Intl

Sun 9/20

7:55 am-10:40 am

Nonstop4h 45m

$290

Colorado SpringsPortland

COS - PWM

COSPWM

Colorado Springs

Wed 9/9

1:40 pm-10:33 pm

1 stop6h 53m

Portland

Sat 9/12

6:00 am-12:48 pm

1 stop8h 48m

$323
Quickest round-trip

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Fri 6/26

7:05 pm-1:00 am

Nonstop3h 55m

Boston Logan Intl

Sun 6/28

5:15 am-7:40 am

Nonstop4h 25m

$327

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/20

Showing 1-10 of 60 resultsSorted by cheapest first
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6

Best time to book a flight from Colorado to Maine

Have a flexible travel schedule? Discover the best time to fly to Maine from Colorado 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 Colorado to Maine

What is the cheapest month to book a flight from Colorado to Maine?

Currently, August is the cheapest month in which you can book a flight from Colorado to Maine (average of $192). Flying from Colorado to Maine in February is currently the most expensive (average of $300). 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.

Reviews of airlines servicing Maine

Get insights into the airlines that provide service to Maine. 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 Maine. Reviews last updated March 22, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited Airlines from Colorado to Maine by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

Find useful and relevant information for your journey from Colorado to Maine. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from Colorado to Maine?

    United Airlines, Southwest, and Delta can get you from Colorado to Maine in just under 3h 57m. Your travel time can differ by up to 5h 08m. The distance from Colorado to Maine is about 1748 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Colorado to Maine one-way?

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $84. United Airlines flights start at $108 while deals on Delta start at $108 one-way.

  • Can I find deals for flights from Colorado to Maine that include hotel bookings?

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

  • How can I find direct flights from Colorado to Maine?

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

  • Can I find deals for business class flights from Colorado to Maine?

    Yes. Cheapflights offers flight deals from Colorado to Maine 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 Colorado to Maine?

    Currently, August is the cheapest month in which you can book a flight from Colorado to Maine (average of $192). Flying from Colorado to Maine in February is currently the most expensive (average of $300). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Colorado to Maine

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Colorado to Maine

Discover the top 6 airlines that operate flights from Colorado to Maine. 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 March 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$129Average$207FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$192Average$485FlexibilityNo cancel feeOn-time71%
DeltaCheapest$192Average$339FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$258Average$451FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$259Average$473FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$288Average$584FlexibilityNo cancel feeOn-time69%

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