What airlines fly to Colorado?

United Airlines, JetBlue and Southwest are the top three most popular airlines that fly to Colorado from Boston according to our data. United Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Colorado. Keep in mind that there are 7 different airlines that fly to Colorado on a routine basis, so you have a few additional options to choose from.

How many flights depart from Boston to Colorado on average per day?

17 flights are operational daily from Boston to Colorado as of July 2026. The most popular departure time for this route is 6:00AM, with 44% of flights per day taking off at noon.

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

As of July 2026, 120 flights take off from Boston and land in Colorado each week. The most common flight departure day for this route is Thu, with 18% of weekly flights taking off on this day.

What is the cheapest airline that flies from Boston Logan Intl to Colorado?

Southwest, Delta, and United Airlines are the most popular carriers operating from Boston Logan Intl to Colorado

When did momondo last update prices for flights from Boston Logan Intl Airport to Colorado?

Prices for flights from Boston Logan Intl Airport to Colorado are refreshed on a daily basis.

How many operators does momondo search for flights from Boston Logan Intl Airport to Colorado?

The number of operators available for flights from Boston Logan Intl Airport to Colorado is 6 as of July 2026.

How old do you have to be to fly from Boston Logan Intl Airport to Colorado?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to Colorado.

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

The necessary travel and health documents for your Colorado trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$104 Cheap Flights from Boston to Colorado in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boston to Colorado

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 12:48 pm

BOS

COS

7h 48m

1 stop

10:17 am - 7:52 pm

COS

BOS

7h 35m

1 stop

$207American Airlines

Wed, Sep 9 - Sat, Sep 12

7:29 am - 3:00 pm

BOS

COS

9h 31m

1 stop

1:41 pm - 11:35 pm

COS

BOS

7h 54m

1 stop

$207American Airlines

Wed, Oct 28 - Tue, Nov 3

5:40 am - 9:45 am

BOS

COS

6h 05m

1 stop

4:20 pm - 12:30 am

COS

BOS

6h 10m

1 stop

$207Southwest

Thu, Aug 27 - Mon, Aug 31

5:25 am - 9:45 am

BOS

COS

6h 20m

1 stop

12:10 pm - 11:15 pm

COS

BOS

9h 05m

1 stop

$212Southwest

Tue, Oct 6 - Sat, Oct 17

7:45 am - 12:28 pm

BOS

COS

6h 43m

1 stop

11:55 am - 9:58 pm

COS

BOS

8h 03m

1 stop

$225United Airlines

Wed, Aug 26 - Sat, Aug 29

6:00 am - 10:47 am

BOS

COS

6h 47m

1 stop

11:55 am - 9:59 pm

COS

BOS

8h 04m

1 stop

$225United Airlines

Tue, Sep 8 - Tue, Sep 15

6:05 am - 1:11 pm

BOS

DEN

9h 06m

1 stop

12:45 pm - 6:47 pm

DEN

BOS

4h 02mnonstop

$230JetBlue

Tue, Sep 8 - Fri, Sep 11

6:05 am - 1:11 pm

BOS

DEN

9h 06m

1 stop

3:15 pm - 12:01 am

DEN

BOS

6h 46m

1 stop

$230JetBlue

Tue, Sep 8 - Fri, Sep 11

12:54 pm - 9:24 pm

BOS

DEN

10h 30m

1 stop

10:44 pm - 12:09 pm

DEN

BOS

35h 25m

2 stops

$230Frontier

Mon, Sep 14 - Mon, Sep 21

11:36 am - 7:37 pm

BOS

DEN

10h 01m

1 stop

7:10 pm - 12:07 pm

DEN

BOS

14h 57m

1 stop

$230Frontier

Fri, Sep 18 - Mon, Sep 28

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Frontier flights from Boston to Colorado

Our best Frontier deals on Boston to Colorado flight tickets

Frontier

Aug 18

BOS12:45 pmBoston Logan Intl

11h 20m

1 stop

DEN10:05 pmDenver Intl

Aug 20

DEN11:59 pmDenver Intl

9h 48m

1 stop

BOS11:47 amBoston Logan Intl

$235

Frontier

Aug 13

BOS11:59 amBoston Logan Intl

12h 06m

1 stop

DEN10:05 pmDenver Intl

Aug 18

DEN11:59 pmDenver Intl

9h 48m

1 stop

BOS11:47 amBoston Logan Intl

$240

Frontier

Aug 21

BOS12:45 pmBoston Logan Intl

11h 04m

1 stop

DEN9:49 pmDenver Intl

Aug 22

DEN11:59 pmDenver Intl

9h 48m

1 stop

BOS11:47 amBoston Logan Intl

$242

United Airlines flights from Boston to Colorado

Our best United Airlines deals on Boston to Colorado flight tickets

United Airlines

Aug 26

BOS7:45 amBoston Logan Intl

6h 43m

1 stop

COS12:28 pmColorado Springs

Aug 29

COS11:55 amColorado Springs

8h 03m

1 stop

BOS9:58 pmBoston Logan Intl

$225

United Airlines

Aug 20

BOS8:16 pmBoston Logan Intl

4h 35m

DEN10:51 pmDenver Intl

Aug 22

DEN4:40 pmDenver Intl

6h 31m

1 stop

BOS1:11 amBoston Logan Intl

$237

United Airlines

Aug 24

BOS6:42 pmBoston Logan Intl

7h 11m

1 stop

DEN11:53 pmDenver Intl

Aug 28

DEN4:00 pmDenver Intl

3h 59m

BOS9:59 pmBoston Logan Intl

$246

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonColorado Springs

BOS - COS

BOSCOS

Boston Logan Intl

Wed 9/9

7:00 am-12:48 pm

1 stop7h 48m

Colorado Springs

Sat 9/12

10:17 am-7:52 pm

1 stop7h 35m

$207

BostonColorado Springs

BOS - COS

BOSCOS

Boston Logan Intl

Wed 10/28

7:29 am-3:00 pm

1 stop9h 31m

Colorado Springs

Tue 11/3

1:41 pm-11:35 pm

1 stop7h 54m

$207

Quickest round-trip

BostonColorado Springs

BOS - COS

BOSCOS

Boston Logan Intl

Thu 8/27

5:40 am-9:45 am

1 stop6h 05m

Colorado Springs

Mon 8/31

4:20 pm-12:30 am

1 stop6h 10m

$207

BostonColorado Springs

BOS - COS

BOSCOS

Boston Logan Intl

Tue 10/6

5:25 am-9:45 am

1 stop6h 20m

Colorado Springs

Sat 10/17

12:10 pm-11:15 pm

1 stop9h 05m

$212

BostonColorado Springs

BOS - COS

BOSCOS

Boston Logan Intl

Wed 8/26

7:45 am-12:28 pm

1 stop6h 43m

Colorado Springs

Sat 8/29

11:55 am-9:58 pm

1 stop8h 03m

$225

BostonColorado Springs

BOS - COS

BOSCOS

Boston Logan Intl

Tue 9/8

6:00 am-10:47 am

1 stop6h 47m

Colorado Springs

Tue 9/15

11:55 am-9:59 pm

1 stop8h 04m

$225

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Tue 9/8

6:05 am-1:11 pm

1 stop9h 06m

Denver Intl

Fri 9/11

12:45 pm-6:47 pm

Nonstop4h 02m

$230

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Tue 9/8

6:05 am-1:11 pm

1 stop9h 06m

Denver Intl

Fri 9/11

3:15 pm-12:01 am

1 stop6h 46m

$230

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Mon 9/14

12:54 pm-9:24 pm

1 stop10h 30m

Denver Intl

Mon 9/21

10:44 pm-12:09 pm

2 stops35h 25m

$230

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Fri 9/18

11:36 am-7:37 pm

1 stop10h 01m

Denver Intl

Mon 9/28

7:10 pm-12:07 pm

1 stop14h 57m

$230

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Boston to Colorado

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 Colorado?

The month of November is, on average, the cheapest month to fly to Colorado from Boston, with most prices found around $316. The month of January is another great option to travel to Colorado, with average flight prices from Boston averaging around $332.

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

The cheapest day to depart from Boston to Colorado is on a Wednesday when prices can be found for as low as $379. On the other hand, Sunday is the most expensive day to depart from Boston because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $489.

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

The cheapest time of day to fly to Colorado is in the evening when flights can be purchased for as low as $348. In the afternoon is when there is more demand to fly to Colorado, so prices are often more expensive at around $431 per ticket.

What is the cheapest Boston Logan Intl to Colorado flight route?

Fly from Boston Logan Intl to Denver Intl for the best Boston Logan Intl - Colorado flight prices

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

You are more likely to see cheaper flights to Colorado from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around $352 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from Boston for as low as $308 on momondo.

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

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

You could potentially save up to 9% on your flight if you consider stops on a Boston to Colorado flight.

Cheap Boston to Colorado flight deals and tips

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

Best Price Found	$216
Fastest flight time	4h 20m
Direct flights	Every day
Airports in Colorado	87 airports

The best one-way flight to Colorado from Boston in the past 72 hours is $216. The best round-trip flight deal from Boston to Colorado found on momondo in the last 72 hours is $323.

The fastest flight from Boston to Colorado takes 4h 20m

Direct flights go from Boston to Colorado every day.

There are 87 airports in Colorado. From Boston there are direct flights to Denver Intl (DEN).

Search flight deals

Frequently asked questions about flying from Boston to Colorado

When did momondo last update prices for flights from Boston Logan Intl Airport to Colorado?
Prices for flights from Boston Logan Intl Airport to Colorado are refreshed on a daily basis.
How many operators does momondo search for flights from Boston Logan Intl Airport to Colorado?
The number of operators available for flights from Boston Logan Intl Airport to Colorado is 6 as of July 2026.
How old do you have to be to fly from Boston Logan Intl Airport to Colorado?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to Colorado.
What documentation or ID do you need to fly to Colorado?
The necessary travel and health documents for your Colorado trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Boston to Colorado?
Based on momondo bookings for flights between Boston and Colorado, the leading plane model is Airbus A321neo, making up 25.55% of the total bookings. Other popular models include Airbus A220-300 with 16.20%, Boeing 737-900 with 11.71%, and Boeing 737-800 Passenger/BBJ2 (winglets) with 11.02%.

Best airlines flying from Boston to Colorado

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $104	Free Cancellation	Rating 7.8 8,494 reviews	Search Delta flights
Frontier	PriceFrom $117	Free Cancellation	Rating 5.6 2,746 reviews	Search Frontier flights
JetBlue	PriceFrom $151	Free Cancellation	Rating 7.1 3,029 reviews	Search JetBlue flights
Southwest	PriceFrom $176	Free Cancellation	Rating 8.0 4,226 reviews	Search Southwest flights
United Airlines	PriceFrom $196	Free Cancellation	Rating 7.4 10,055 reviews	Search United Airlines flights
American Airlines	PriceFrom $196	Free Cancellation	Rating 7.1 11,845 reviews	Search American Airlines flights

Why use momondo?

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

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 Colorado from Boston.

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

Yes. momondo enables you to select and highlight flights to Colorado from Boston with this policy.

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

momondo provides multiple filters to help you find the best flight to Colorado from Boston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Colorado from Boston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Cheap flights from Boston to Colorado from $104

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Colorado departing on 8/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Frontier flights from Boston to Colorado

Our best Frontier deals on Boston to Colorado flight tickets

United Airlines flights from Boston to Colorado

Our best United Airlines deals on Boston to Colorado flight tickets

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See travel insights to Colorado from

How to get the cheapest flight ticket from Boston to Colorado

What is the cheapest month to fly to Colorado?

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

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

What is the cheapest Boston Logan Intl to Colorado flight route?

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

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

Can stopping save me money on Boston to Colorado flights?

What is the cheapest airline that flies from Boston Logan Intl to Colorado?

What airlines fly to Colorado?

How many flights depart from Boston to Colorado on average per day?

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

Cheap Boston to Colorado flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in Colorado

Frequently asked questions about flying from Boston to Colorado

Best airlines flying from Boston to Colorado

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

Why use momondo?

An easier way to manage your Colorado 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 Colorado

Popular cities in Colorado

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According to popular flight searches on momondo this year

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