Maine

$99+ 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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PWM
Mar 22 — Mar 291
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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 February 20, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/511:59 pm
DEN
-
BOS
1 stop22h 52m
Frontier
Fri 5/812:35 pm
BOS
-
DEN
1 stop25h 34m
Frontier
Deal found 2/19$185
This Kiwi.com deal was found by Cheapflights users on 2/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/121:09 pm
DEN
-
BOS
1 stop9h 42m
Frontier
Wed 5/1312:55 pm
BOS
-
DEN
1 stop12h 08m
Frontier
Deal found 2/18$186
This Cheapflightsfares deal was found by Cheapflights users on 2/19. 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 5/1511:59 pm
DEN
-
BOS
1 stop8h 22m
Frontier
Mon 5/1811:16 am
BOS
-
DEN
1 stop13h 43m
Frontier
Deal found 2/19$189
This Frontier deal was found by Cheapflights users on 2/19. 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.
Fri 4/1011:59 pm
DEN
-
BOS
1 stop9h 20m
Frontier
Mon 4/1312:42 pm
BOS
-
DEN
1 stop12h 22m
Frontier
Deal found 2/19$190
This Frontier deal was found by Cheapflights users on 2/19. 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 3/3110:20 am
DEN
-
BOS
1 stop12h 53m
Frontier
Thu 4/911:26 am
BOS
-
DEN
1 stop13h 43m
Frontier
Deal found 2/19$191
This Kiwi.com deal was found by Cheapflights users on 2/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/511:59 pm
DEN
-
BOS
2 stops22h 00m
Multiple Airlines
Tue 5/1912:55 pm
BOS
-
DEN
1 stop12h 08m
Multiple Airlines
Deal found 2/18$192
This Flysmarter deal was found by Cheapflights users on 2/18. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/3011:09 pm
DEN
-
BOS
Nonstop3h 48m
JetBlue
Tue 4/77:35 pm
BOS
-
DEN
Nonstop4h 42m
JetBlue
Deal found 2/18$193
This Super.com deal was found by Cheapflights users on 2/19. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/511:08 pm
DEN
-
BOS
Nonstop3h 53m
JetBlue
Tue 5/197:31 pm
BOS
-
DEN
Nonstop4h 42m
JetBlue
Deal found 2/19$194
This Cheapflightsfares deal was found by Cheapflights users on 2/19. 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.
Tue 6/210:34 pm
DEN
-
BOS
Nonstop3h 56m
JetBlue
Tue 6/96:00 am
BOS
-
DEN
Nonstop4h 28m
JetBlue
Deal found 2/19$196
This American Airlines deal was found by Cheapflights users on 2/17. 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.
Tue 3/106:00 am
COS
-
BOS
1 stop7h 13m
American Airlines
Tue 3/176:45 am
BOS
-
COS
1 stop8h 23m
American Airlines
Deal found 2/17$197
This deal was found by Cheapflights users on 2/16. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2911:08 pm
DEN
-
BOS
Nonstop3h 53m
JetBlue
Tue 5/57:31 pm
BOS
-
DEN
Nonstop4h 42m
JetBlue
Deal found 2/16$197
This Kiwi.com deal was found by Cheapflights users on 2/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/151:09 pm
DEN
-
BOS
1 stop9h 42m
Multiple Airlines
Mon 4/205:23 pm
BOS
-
DEN
1 stop19h 07m
Multiple Airlines
Deal found 2/17$198

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 February 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$185
(Kiwi.com)

One-way from

$99
(American Airlines)

Popular in

July

Cheapest in

January

Average price

$481

Good round-trip deal

$416 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 ($65 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Average for round-trip flights in February 2026
Price to beat on a round-trip 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 February 20, 2026.
Use the filters below to find and compare flights from Colorado to Maine that are best for you.

Fly from

Colorado

Fly to

Maine

Route

Depart

Return

Price

Colorado SpringsBoston

COS - BOS

COSBOS

Colorado Springs

Tue 3/10

6:00 am-3:13 pm

1 stop7h 13m

Boston Logan Intl

Tue 3/17

6:45 am-1:08 pm

1 stop8h 23m

$197

Colorado SpringsBoston

COS - BOS

COSBOS

Colorado Springs

Tue 3/10

10:40 am-10:10 pm

2 stops9h 30m

Boston Logan Intl

Tue 3/17

5:00 am-9:30 am

1 stop6h 30m

$202

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Tue 5/19

5:51 pm-11:59 pm

Nonstop4h 08m

Boston Logan Intl

Thu 5/28

4:57 pm-7:45 pm

Nonstop4h 48m

$202

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Mon 3/30

7:05 pm-12:50 am

Nonstop3h 45m

Boston Logan Intl

Tue 4/7

5:35 am-8:05 am

Nonstop4h 30m

$202

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Wed 5/20

11:59 pm-6:04 am

Nonstop4h 05m

Boston Logan Intl

Tue 5/26

8:39 pm-11:26 pm

Nonstop4h 47m

$202

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Tue 3/10

7:50 am-1:42 pm

Nonstop3h 52m

Boston Logan Intl

Tue 3/17

4:50 pm-7:40 pm

Nonstop4h 50m

$207

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Wed 7/8

5:40 pm-11:44 pm

Nonstop4h 04m

Boston Logan Intl

Sat 7/18

8:36 pm-11:21 pm

Nonstop4h 45m

$210

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Thu 3/5

11:15 pm-5:02 am

Nonstop3h 47m

Boston Logan Intl

Sat 3/7

7:31 pm-10:18 pm

Nonstop4h 47m

$213

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Tue 7/14

8:15 am-4:26 pm

1 stop6h 11m

Boston Logan Intl

Wed 7/22

4:55 pm-7:43 pm

Nonstop4h 48m

$217

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Tue 7/14

3:56 pm-11:58 pm

1 stop6h 02m

Boston Logan Intl

Tue 7/21

7:49 am-10:23 am

Nonstop4h 34m

$217

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 60 results
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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, June is the cheapest month in which you can book a flight from Colorado to Maine (average of $165). Flying from Colorado to Maine in February is currently the most expensive (average of $293). 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 CO to ME?

Find hourly flight availability from Colorado to Maine. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Colorado to Maine as you normally would.

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 February 20, 2026.
Get a feel of what it's like to fly with Southwest, Delta, and United 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.

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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?

    American Airlines, Southwest, and United Airlines can get you from Colorado to Maine in just under 4h 08m. Your travel time can differ by up to 5h 22m. 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. Frontier flights start at $85 while deals on United Airlines 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, June is the cheapest month in which you can book a flight from Colorado to Maine (average of $165). Flying from Colorado to Maine in February is currently the most expensive (average of $293). 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 February 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$129Average$209FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$139Average$377FlexibilityNo cancel feeOn-time62%
DeltaCheapest$165Average$330FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$192Average$465FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$272Average$427FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$288Average$600FlexibilityNo cancel feeOn-time69%

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