$109 Find Cheap Flights from Boston to Colorado

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Colorado departing on 10/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Colorado

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Colorado.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Colorado.
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Cheap Flights from Boston to Colorado

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Denver
Denver2 stops$191
Aspen
Aspen1 stop$309
Grand Junction
Grand Junction2 stops$319
Durango
Durango1 stop$298
Montrose
Montrose1 stop$304
Hayden
Haydennonstop$303
Gunnison
Gunnison1 stop$424
Vail
Vail1 stop$309
Denver
Denver2 stops$191
Aspen
Aspen1 stop$309
Grand Junction
Grand Junction2 stops$319
Durango
Durango1 stop$298
Montrose
Montrose1 stop$304
Hayden
Haydennonstop$303
Gunnison
Gunnison1 stop$424
Vail
Vail1 stop$309

Book Cheap Boston to Colorado Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Colorado that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Colorado

Thu, Nov 6 - Fri, Nov 7
Frontier Logo
10:04 am - 10:28 pmBOS-DEN
14h 24m2 stops
Frontier Logo
12:59 am - 10:48 amDEN-BOS
7h 49m1 stop
$191Frontier
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Sat, Sep 27 - Tue, Sep 30
Southwest Logo
6:15 am - 8:40 amBOS-DEN
4h 25mnonstop
Southwest Logo
9:50 am - 7:10 pmDEN-BOS
7h 20m2 stops
$192Southwest
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Fri, Sep 19 - Thu, Sep 25
United Airlines Logo
7:00 pm - 9:34 pmBOS-DEN
4h 34mnonstop
United Airlines Logo
11:59 pm - 6:00 amDEN-BOS
4h 01mnonstop
$207United Airlines
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Thu, Oct 2 - Mon, Oct 6
United Airlines Logo
7:13 pm - 9:48 pmBOS-DEN
4h 35mnonstop
United Airlines Logo
11:59 pm - 6:00 amDEN-BOS
4h 01mnonstop
$212United Airlines
Find Deal
Wed, Nov 19 - Sun, Nov 23
JetBlue Logo
9:42 am - 12:29 pmBOS-DEN
4h 47mnonstop
JetBlue Logo
11:59 pm - 5:44 amDEN-BOS
3h 45mnonstop
$232JetBlue
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Fri, Dec 5 - Thu, Dec 11
JetBlue Logo
3:35 pm - 10:04 pmBOS-DEN
8h 29m1 stop
JetBlue Logo
11:59 pm - 5:40 amDEN-BOS
3h 41mnonstop
$239JetBlue
Find Deal
Sat, Sep 13 - Tue, Sep 16
American Airlines Logo
6:00 am - 1:43 pmBOS-COS
9h 43m1 stop
American Airlines Logo
10:52 am - 8:04 pmCOS-BOS
7h 12m1 stop
$247American Airlines
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Sat, Sep 13 - Tue, Sep 16
American Airlines Logo
2:16 pm - 10:08 pmBOS-COS
9h 52m2 stops
American Airlines Logo
12:32 pm - 9:54 pmCOS-BOS
7h 22m1 stop
$252American Airlines
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Sun, Jan 11 - Sat, Jan 17
Delta Logo
7:00 am - 1:55 pmBOS-EGE
8h 55m1 stop
Delta Logo
11:35 am - 10:33 pmEGE-BOS
8h 58m1 stop
$309Delta
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Sun, Jan 11 - Sat, Jan 17
Delta Logo
7:00 am - 1:55 pmBOS-EGE
8h 55m1 stop
Delta Logo
11:31 am - 9:48 pmEGE-BOS
8h 17m2 stops
$314Delta
Find Deal
Booking Insights

KAYAK's insights & trends for Boston to Colorado flights

Get data-powered insights and trends into flights from Boston to Colorado to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Boston to Colorado flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Colorado from Boston found in the last 72 hours was to Denver, at $165 round-trip. The most popular route is from Boston (BOS) to Denver (DEN), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $165.

Can I save money by flying with a layover from Boston to Colorado?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $755, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Boston to Colorado?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Colorado, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to Colorado is January, when tickets cost $247 (return) on average. On the other hand, the most expensive months are February and August, when the average cost of round-trip tickets is $352 and $339 respectively.

What’s the cheapest day of the week to fly from Boston to Colorado?

The average price of all round-trip flights from Boston to Colorado clicked on KAYAK for each day over the last 12 months.

For Boston to Colorado, Tuesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Colorado back to Boston, the best deals are generally found on Wednesday, with Sunday being the most expensive.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to Colorado, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boston to Colorado, you should book around 2 weeks before departure, which saves you about 23% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$109
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from Boston to Denver

FAQs - booking Colorado flights

  • Where are the most common layovers between Boston Logan International Airport and Colorado?

    If you’re able to secure a direct flight from Boston to Colorado, you won’t have to be concerned about making any layovers. But if you do have to make stops, you’ll usually find that they’ll take place at airports like Chicago O'Hare International Airport (ORD) and Detroit Metropolitan Wayne County Airport (DTW). While in Detroit, you’ll be able to stock up on University of Michigan gear at the many shops throughout the airport.

  • Which airlines that fly from Boston to Colorado are the most kid-friendly choices?

    American Airlines and Delta Air Lines are solid choices for parents bringing kids on flights from Boston to Colorado. American Airlines seats parents and their kids together, and allows them to board some flights early, while Delta keeps kids occupied by providing them with activity kits.

  • Can I bring ski equipment on a flight from Boston to Colorado?

    Those heading from Boston to Colorado to go skiing can bring ski equipment with them on most airlines, including American Airlines, Delta Air Lines, and United Airlines. You can check ski equipment just like you would check any other luggage.

  • Will I be able to get access to free Wi-Fi on airlines that fly from Boston to Colorado?

    Many airlines won't provide you with free Wi-Fi on flights unless you're sitting in first class. JetBlue is one of the few airlines that will extend free, high-speed Wi-Fi to all passengers. Delta Air Lines is also in the process of rolling out free Wi-Fi on all of their newer airplanes, which you can access if you are a member of the free Delta SkyMiles rewards program.

  • How does KAYAK find such low prices on flights from Boston 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 Boston to Colorado.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Boston 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 Boston 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 Boston 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 Boston 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 Boston to Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • 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 $279 on average. Morning departures are around 7% 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 $423.

Top tips for finding cheap flights to Colorado

  • When you think about flying from Boston Logan International Airport (BOS) to Colorado, you’ll usually associate it with flying to Denver International Airport (DEN). However, there are also other airports within Colorado you can travel to, including Colorado Springs Airport (COS) and smaller regional airports like Grand Junction Regional Airport (RJT) and Aspen/Pitkin County Airport (ASE).
  • Some airlines that fly from Boston Logan International Airport to Colorado will make stops between the two cities. There are others that will be able to provide you with direct flights, especially when you’re flying to Denver International Airport. Delta Air Lines and JetBlue are a couple of the airlines that have the most direct flights from Boston to Colorado.
  • You won’t be able to book first-class tickets through all the airlines that fly from Boston to Colorado. Spirit Airlines, for example, doesn’t provide a true first-class option for passengers. But others, like American Airlines, Delta, and JetBlue, will all be able to offer first-class tickets. It’ll give you access to more legroom on your flight to Colorado, and it’ll also earn you other amenities like increased dining options.
  • Those who fly first class from Boston to Colorado will be able to check bags without paying baggage fees in most cases. But if you’re flying in a lower cabin class, like economy class, you might be subjected to fees when you check even just a single bag on an airline like American Airlines or Delta. To get around them, try packing light and only bring a carry-on bag onto your flight.
  • In the event you find yourself with some free time while waiting for a flight to Colorado at Boston Logan International Airport, you’ll be happy to hear the airport has many lounges you can use. The Lounge is open to all passengers, while airline-specific lounges like American Airlines’ Admirals Club and Delta’s Sky Club will also be options.

Reviews of the top 5 airlines serving from Boston to Colorado

 
See real verified KAYAK customer reviews for airlines flying from Boston to Colorado. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston 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 4237 reviews
7.5Entertainment
8.1Boarding
7.0Food
8.0Comfort
8.6Crew
Airline reviews

After being assaulted by a flight attendant I was then brushed off as oh well because he long braids didn’t mean to whip me in the eye. I have filed complaints and will see. But like any other issue I’ve had with kayak involved it’s been trash. Last time I’ll be using your app

6.0 GoodCarl, Aug 2025MSY - BWI
Read more Southwest reviews

After being assaulted by a flight attendant I was then brushed off as oh well because he long braids didn’t mean to whip me in the eye. I have filed complaints and will see. But like any other issue I’ve had with kayak involved it’s been trash. Last time I’ll be using your app

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

Near 4 hour flight with only 1 service. Had to use call button to request water. Internet and power not working until into flight. Internet would stop working during flight.

Southwest's seats are the least comfortable I have ever sat in.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Southwest like most American domestic airlines, is a mediocre airline. But it is among the cheapest. Oh well.

My flight was delayed 50 minutes and we were rushed to board to then sit for 15 minutes until the pilot arrived. Unacceptable since we could have waited to board. Also the delayed flight was updated AFTER we boarded to more than the 10 minutes as originally stated.

Other than a bit of a delay, everything was good. Again, the boarding process and picking seats is the only thing I don't enjoy.

If we are going to have to pay for luggage, make it easier to do. Put something on the app during check-in so I don't need to do it at the kiosk. I've done it twice recently and I ended up having to pay at the desk because something went wrong at the kiosk in Tampa.

southwest just starting charging for luggage. hadnt realized it until it was too late. now out $70 when i couldve bought a carry on if i wouldve known. free bags was one of the only reasons i chose southwest over another airline (the other being no assigned seats, which is apparently also being changed). stupid business decision. wont be flying southwest anymore.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

On this flight I felt the food offering was not as complete as on previous flights. The tomato salad was a bit off and there was nothing additional such a bread or butter. The breakfast was only one option, so you either ate what they had or ate nothing. The crew was efficient, but most seemed frustrated throughout the flight. The flight arrived early and was obstacle-free, so I’m overall quite happy, but the shine in the rest of the experience just wasn’t there.

The seats got pretty uncomfortable pretty fast. The armrests are bigger than on other planes, so I had less room in the actual seat. My butt hurt by the end of the flight. :/ comfort was the primary issue. The crew were fantastic!

I believe that a four-hour trip should have a meal. Delta had none.

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

Tastless food and too obvious lack of enthusiasm for service in the economy vesus business class

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

The service was good, the food could have been better.

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

Very rough getting into denver. my kid threw up it was so rough.

Why wasn't this flight departure scheduled eith another crew so that it could leave on time? When we arrived in Denver we had so little time between flights we had run to the connecting flight. We should received some credit for the inconvenience.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Having to reschedule flights a day later, they loaded by luggage on the wrong plane from Little rock now I have to HOPE they deliver it to where im staying like they said would. International flight crew was very disgruntled and not very friendly.

We will be writing a long, detailed letter to corporate about our awful experience with American airlines.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

The entertainment package was vast and the selections were very current. Keep updating it was great.

The seat was so hard my tailbone was aching The crew was kind of a b**** because I made a joke that I didn't care if they close the door I total c*** when she was trying to f****** act like she was mad at me because I said that The flight was bumpy. Sure you didnt have control over that.

Our bags took a long time to get unloaded once we landed.

We fly American Airlines quite a bit. And we always fly business class when traveling internationally. We were a bit disappointed with the comfort of this particular plane as well as the entertainment options.

Flight was delayed not sure why no explanation given and no apologies either. Otherwise the flight was fine

Did not get the seat I selected and paid for.

My flight was delayed for several hours. Sitting at gate 16 for several hours, I got a text from Kayak the gate changed to 9 before it was announced. Very bad communication at each gate from American Airlines employees. I received 10 notifications of delay from Kayak. My vacation started off horrible! I will write to American Airlines corporate office also.

WiFi was not eorkig (again) And the plane was from 1990 with the screens which were.not touch and most didn’t even work and if lucky could tune in tv

I paid extra for a seat closer to the front. The TV didn’t work at all for the entire flight. Would have been nice to know before I purchased an “upgraded “ seat

It was great. I had never flown on JetBlue before, but would be very happy to fly with them in the future.

Worst flight experience ever flights canceled. JetBlue told us just did not even bother standing in line to come back in one and a half hours then without any information we had to go pick up all of our luggage and spend over $2000 in accommodation just to get home. JetBlue said that the next flight available for us to get home would be three days later. Absolutely absurd hasn’t offered to give us any compensation do not fly JetBlue horrible company. They said it was based on the weather and the weather is great in all locations that we would’ve been flying to total hoax. I think it’s a conspiracy theory.

The captain gave good announcements and the flight attendants were friendly. The WiFi was pretty good. The plane itself looked very old inside and the seats were very uncomfortable. The screens in the seat backs were the smallest I’ve ever seen. There were so many loud and obnoxious kids on this flight and the parents didn’t do much to try to quiet them down. Some had videos and games on tablets with higher than necessary volume going the whole time.

Too many long delays with JetBlue. Worst major airline that serves JFK but unfortunately I keep going back because of the prices.

My JetBlue experience was nice. The flights ran on time, the aircraft was clean and comfortable, and the flight attendants were attentive. My only issue, which is isolated to the low-cost (budget) option at JetBlue, is that the check in process makes the user feel that they have to buy their seats. The seats offered for purchase are upgrades from the budget seats you get (which are essentially the last seats remaining). The interface should not make it feel like you must purchase a seat.

The plane was late to leave.. Internet was lousy. TV was not working. when we arrived, We stayed on the plane for a long time before we got to the gate. It took us a long time to retrieve our luggage because they didn’t know what carousel to send them to. It was a bad experience.

I especially liked the lead crew officer. His boarding and safety announcements were made with a bit of novelty and humor. The flight also left the gate 10 minutes early and we landed about 20 minutes early… It was a delightful flight…

There were mutliple delays. There was inconsistent, delayed, and poor communication regarding the delays.

Everything you need to know for your flight from Boston to Colorado

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