$89 Find Cheap Flights from Maine to Colorado

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Low season

January

High season

July

Cheapest flight

$89
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 6% increase in price.
Flight from Boston to Denver

FAQs for booking flights from Maine to Colorado

  • How does KAYAK find such low prices on flights from Maine to Colorado?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Maine to Colorado.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Maine to Colorado?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Maine to Colorado is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Maine to Colorado?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Maine to Colorado with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Maine to Colorado?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Maine to Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many airports are there in Colorado?

    There are 13 airports in Colorado. The busiest airport is Denver Airport (DEN), with 86% of all flights arriving there.

  • Which is the cheapest airport to fly into in Colorado?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Colorado is Denver Intl Airport (DEN), with an average flight price of $408.

  • What is the cheapest day to fly to Colorado?

    Based on KAYAK data, the cheapest day to fly to Colorado is Friday where round-trip tickets can be as cheap as $567. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $784 on average.

  • What is the cheapest time of day to fly to Colorado?

    The cheapest time of day to fly to Colorado is generally at night, when round-trip flights cost $361 on average. Morning departures are around 26% cheaper than evening flights, on average. The most expensive time of day to fly to Colorado is generally in the evening, which is peak travel time and where the average cost of a ticket is $617.

  • What is the cheapest flight to Colorado?

    The cheapest ticket to Colorado from Maine found in the last 72 hours was to Denver, at $424 round-trip. The most popular route is Portland (PWM) to Denver (DEN) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $424.

  • What is the cheapest month to fly from Maine to Colorado?

    The cheapest month for flights from Maine to Colorado is January, when tickets cost $305 (return) on average. On the other hand, the most expensive months are July and February, when the average cost of round-trip tickets is $647 and $643 respectively.

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

    To get a below average price on the flight from Maine to Colorado, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

  • How long is the flight to Colorado?

    An average nonstop flight from Maine to Colorado takes 10h 12m, covering a distance of 1892 miles. The shortest route is Portland (PWM) to Denver (DEN) with an average flight time of 4h 25m.

  • What are the most popular destinations in Colorado?

    Based on KAYAK flight searches, the most popular destination is Denver (90% of total searches to Colorado). The next most popular destinations are Colorado Springs (3%) and Durango (2%). Searches for flights to Grand Junction (2%), to Montrose (1%) and to Vail (1%) are also popular.

See more FAQs

Top 5 airlines serving from Maine to Colorado

Need help choosing which airline to fly with from Maine to Colorado? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4274 reviews
8.2Boarding
8.1Comfort
8.7Crew
7.1Food
7.6Entertainment
Airline reviews

Short flight with plenty of open seats. Drinks and snacks were still provided even on such a short flight. <1 hr

10.0 ExcellentMatthew, Mar 2025BWI - CMH
Read more Southwest reviews

Short flight with plenty of open seats. Drinks and snacks were still provided even on such a short flight. <1 hr

I liked the crew member who gave flight instructions on "in case of a problem:. The seats are so small that only a young teenager could sit in middle seat.

Great experience flying Southwest. The crew was really kind and helpful, and very friendly with our toddler.

Very good. Sad to learn Southwest is going start to charge for bags

Our flight was diverted from being a non-stop to getting within 150 miles and requiring another plane. We heard 4 or 5 different versions from SW as to why we had to stop, then wait for a replacement plane. Five hour delay, weather did not come up as a single excuse.... communication was not clear and well explained. No one really took charge!

My flight to Chicago left and landed early. My return flight left two minutes late and arrived 2 minutes late. My seat selections were ideal! There were no snacks going to Chicago and no snacks on the return trip. There are no charging outlets on board.

WiFi on the flight was not working. Thus, entertainment options were limited.

Great flight staff. Ease of boarding. Overall, very uneventful and easy trip.

Plane late from DC to Austin 30 minutes. Crew made up much of the time enroute to San Diego.

Gate agents were informative and friendly… flight attendants were as well. Had a fun time chatting about their legacy AirTran experiences as a former fan of the airline that Southwest acquired.

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

Terrible and im avoiding them in the future. My initial flight was delayed causing me to rebook my flight and when speaking with the representative to rebook I explained this is the second time my flights were delayed and they did nothing to help me. I wasn't booked to comfort plus or given a voucher or anything. I was almost late for my meeting that I needed to attend on Monday because of the games delta played delaying my flights even more and putting me in the very back of the plane next to an extremely intoxicated passenger

Flights on time. .Ride was as comfortable as can be expected in steerage. Luggage arrived at destination. Attendants were fairly friendly.

Great staff. Wifi is terrible. Signing up for skylines is a painstaking process. Had to call customer service just to get my flight itinerary and confirmation sent to me. Consistent delays. A well staffed company that is run so poorly. Upper management needs to be renewed.

The WiFi didn't seem as fast as it normally is

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

The crew was wonderful and attentive. The seats near exit row were restrictive. Offer healthy snacks please

Delta is a premier airline so my expectations are most always met.

Seats are much much more comfortable than United, which is what I usually fly

Food choices were very limited. Taste of the dishes was average.

I liked all the informational texts. I always knew where to go and when .

Received an email the night before showing that there would be seatback entertainment on our flight. We get on and there was no seatback entertainment. And then it was a scramble to try to set up the iPads for the kids before takeoff so they could watch something for the four hour flight.

The reason I don’t fly United. No in seat entertainment for a long flight and inconsistent WiFi and entertainment available from my device.

It was a good flight. Nothing comes to mind about how it could have been better. It was a newer plane, seemed like a great upgrade from your older ones. Staff was very good as well.

The food for long haul was poor compared to Singapore airlines economy. Pasta plain with tomato sauce . Singapore airlines give me Hagen dash small ice cream cup it was great. The choices of dinner course Singapore air also much better The crew mostly friendly. The economy seat are as expected.

The plane was clean. The staff was excellent. The flight attendants were very good. Enjoyable flight. Overall. The seats in the back are too small but, will always be.

Flight was 3 1/2 hour delayed with no credit or meal vouchers

late departure due to some unspecified issue with ventilating the cabin. They got it running but it was FREEZING for the whole flight. I asked for a blanket but they didn't provide one. They could not turn up the heat. it was quite miserable.

Liked that we left on time for each flight. Snacks not the best, but we're okay.

The flight was initially delayed, then cancelled. American Airlines says the cancellation was weather related, though the actual weather was not bad in both Washington and Providence and between. There were very few cancellations that day. In fact, AA2120 from Washington, DC to Boston flew with a minor delay at about the same time. So, the weather somehow affected only this particular flight AA5230. The next available flight was the following morning. The American Airlines refused to reimburse accommodation (hotel at DCA)

I have long legs, my foot was out in the aisle and when a flight attendant came walking by and I didn't notice, instead of saying "excuse me" or anything like that, she kicked my foot. Extremely rude

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

Fine. On time, cabin service was fine, bag arrived. All good. Flying into DCA so did not collide with any helicopters, which is also good. Horrid incident that could have and should have been prevented.

Cabin was roomy enough to easily slide my carry on under the seat in front of me!

Everything was fine. Flight boarded and departed on time. Seating was spacious enough for my carryon to fit under the seat in front of me. No complaints at all. Flight even arrived early.

We kept being told that the flight was full and that all overhead compartments were full and therefore had to check in our hand luggage. We were some of the last people to board and noticed that there was still sufficient space in the overhead compartments. We were obliged to check in hand luggage when there was space and so had to wait at luggage retrieval which took a while to then noticed damage to our luggage - not a great experience!

Crew professional. Easy bag drop off. On time. Good entertainment.

I liked everything. Except that my neck was hurting on the seat. I couldn't sleep.

Good experience but the snacks are not gluten free, so I cannot eat them.

The plane failed preflight inspection, so we sat there for 90 mins while they tried to fix it. Ultimately, everything was remedied and we made our connecting flight; instead of a 2 hour layover at the airport, we spent it waiting on the plane.

I loked walking out on the tarmac to board and no first class. I didn't like that they have no snacks or onboard wifi to bide your time.

The seats were extremely hard and uncomfortable. It was disappointing even for a budget airline.

Delayed each time on a round trip with no significant weather interference. Updates to flight times came after the fact. 30 min behind in boarding and board and phone still show an on time departure. Some mysterious extra 300 miles that came so surprising they had to fuel while we were already on board?

Our flight was canceled for no known reason. We weren’t told until we were checking in at 5:00 am. This was after our last flight with Frontier where we sat on the plane for three hours (not an exaggeration) before we took off because of a mechanical issue. We won’t be flying Frontier again.

Allowed me to chose my seat without extra charge (I purchased full-price ticket) and boarding was in group1. Didn't even serve water.

Stuck in Phoenix for two days, not even a hotel voucher offered.

Every day about it was very different all the boarding pass where all wrong l miss flight no refund all crazy

Flight got delayed for 3.5 hours, and for the first hour after the departure time there was no update from the gate folks...

Both flights were delayed. The sizing of bags is crazy. I know it is advertised as a no frills cheaper option but it does feel like you are being extorted for money the whole way-- $20 dollars to talk to a gate agent? Charging for soda a pretzels? I don't think I will be flying Frontier again if I can help it. That said, all the staff were wonderful.

Book cheap flights from Maine to Colorado

Recent round-trip flight deals

6/3Tue
nonstopJetBlue
4h 55mBOS-DEN
6/10Tue
nonstopJetBlue
3h 50mDEN-BOS
$177
4/26Sat
nonstopJetBlue
4h 57mBOS-DEN
4/30Wed
nonstopJetBlue
3h 50mDEN-BOS
$187
4/29Tue
nonstopSouthwest
4h 35mBOS-DEN
4/30Wed
2 stopsSouthwest
7h 40mDEN-BOS
$212
4/26Sat
1 stopSouthwest
9h 40mBOS-DEN
5/3Sat
1 stopSouthwest
6h 30mDEN-BOS
$216
5/3Sat
1 stopUnited Airlines
9h 12mBOS-COS
5/10Sat
1 stopUnited Airlines
5h 43mCOS-BOS
$217
5/3Sat
2 stopsUnited Airlines
8h 31mBOS-COS
5/10Sat
1 stopUnited Airlines
6h 00mCOS-BOS
$222
4/7Mon
1 stopAmerican Airlines
9h 40mBOS-COS
4/9Wed
1 stopAmerican Airlines
9h 03mCOS-BOS
$247
5/27Tue
1 stopAmerican Airlines
11h 04mBOS-DEN
6/2Mon
1 stopAmerican Airlines
7h 21mDEN-BOS
$251
7/1Tue
1 stopDelta
5h 51mPWM-DEN
8/5Tue
1 stopDelta
9h 25mDEN-PWM
$257
9/5Fri
nonstopDelta
4h 38mBOS-DEN
9/16Tue
nonstopDelta
4h 19mDEN-BOS
$267

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Recent one-way flight deals

6/17Tue
nonstopJetBlue
4h 28mBOS-DEN
$89
5/13Tue
nonstopDelta
4h 40mBOS-DEN
$99
4/26Sat
1 stopSouthwest
6h 45mBOS-DEN
$108
5/24Sat
1 stopUnited Airlines
7h 15mBOS-DEN
$109
5/24Sat
1 stopSouthwest
6h 15mBOS-COS
$109
5/5Mon
1 stopUnited Airlines
6h 49mBOS-DEN
$119
4/16Wed
2 stopsAmerican Airlines
10h 16mBOS-COS
$124
4/27Sun
1 stopFrontier
12h 33mBOS-DEN
$125
5/18Sun
1 stopFrontier
24h 27mBOS-DEN
$126
4/7Mon
1 stopAmerican Airlines
7h 42mBOS-COS
$129

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Last minute flights from Maine to Colorado

Last minute flight, train and bus deals

4/1Tue
multi-stopJetBlue
7h 45mBOS-DEN
4/5Sat
multi-stopJetBlue
8h 37mDEN-BOS
$279
3/31Mon
nonstopDelta
4h 56mBOS-DEN
4/22Tue
nonstopDelta
3h 59mDEN-BOS
$305
4/1Tue
multi-stopFrontier
13h 43mBOS-DEN
4/5Sat
multi-stopFrontier
9h 51mDEN-BOS
$308
3/30Sun
multi-stopFrontier
24h 56mBOS-DEN
4/2Wed
multi-stopFrontier
22h 37mDEN-BOS
$310
3/31Mon
nonstopSouthwest
4h 50mBOS-DEN
4/7Mon
multi-stopSouthwest
8h 40mDEN-BOS
$351
3/31Mon
multi-stopSouthwest
7h 15mBOS-DEN
4/2Wed
multi-stopSouthwest
10h 55mDEN-BOS
$361
3/30Sun
nonstopUnited Airlines
4h 46mBOS-DEN
4/5Sat
nonstopUnited Airlines
4h 00mDEN-BOS
$371
3/30Sun
nonstopUnited Airlines
4h 46mBOS-DEN
4/3Thu
multi-stopUnited Airlines
8h 34mDEN-BOS
$381
4/1Tue
multi-stopAmerican Airlines
6h 38mBOS-HDN
4/3Thu
multi-stopAmerican Airlines
8h 05mHDN-BOS
$390
4/1Tue
multi-stopAmerican Airlines
6h 38mBOS-HDN
4/3Thu
multi-stopAmerican Airlines
8h 31mHDN-BOS
$395

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Everything you need to know for your flight to Colorado

Cabin class types available on flights to Maine

Cabin classes available on flights to Maine. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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