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$75+ Cheap flights from Boston (BOS) to Colorado

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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — DEN
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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Cheap flight deals from Boston to Colorado

Cheapest flights from Boston to Colorado
Explore the most affordable flight options available from Boston to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
Mon 12/158:28 amBOS - DEN
1 stop7h 18mFrontier
Tue 12/1612:59 amDEN - BOS
2 stops30h 53mFrontier
Deal found 12/2$177
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
Mon 12/158:28 amBOS - DEN
1 stop7h 18mMultiple Airlines
Mon 12/1511:59 pmDEN - BOS
1 stop17h 07mMultiple Airlines
Deal found 12/2$180
This American Airlines deal was found by Cheapflights users on 12/1. 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 12/164:05 pmBOS - DEN
1 stop8h 15mAmerican Airlines
Wed 12/177:49 amDEN - BOS
1 stop6h 04mAmerican Airlines
Deal found 12/1$187
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
Mon 12/1511:08 amBOS - DEN
2 stops25h 10mMultiple Airlines
Thu 12/186:00 amDEN - BOS
1 stop23h 23mMultiple Airlines
Deal found 12/2$200
This Expedia deal was found by Cheapflights users on 12/2. 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.
Tue 12/169:49 amBOS - DEN
Nonstop4h 46mJetBlue
Wed 12/2410:40 pmDEN - BOS
Nonstop3h 47mJetBlue
Deal found 12/2$202
This Cheapflightsfares deal was found by Cheapflights users on 12/2. 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 12/158:28 amBOS - DEN
1 stop7h 18mFrontier
Sun 12/216:00 amDEN - BOS
1 stop23h 23mFrontier
Deal found 12/2$203
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
Fri 12/128:28 amBOS - DEN
1 stop7h 18mFrontier
Sun 12/146:00 amDEN - BOS
1 stop23h 33mFrontier
Deal found 12/2$205
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
Mon 12/158:28 amBOS - DEN
1 stop7h 18mFrontier
Thu 12/186:00 amDEN - BOS
1 stop23h 23mFrontier
Deal found 12/2$207
This United Airlines deal was found by Cheapflights users on 12/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/163:16 pmBOS - DEN
Nonstop4h 52mUnited Airlines
Wed 12/179:45 amDEN - BOS
1 stop7h 05mUnited Airlines
Deal found 12/1$208
This JetBlue deal was found by Cheapflights users on 12/2. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/163:40 pmBOS - DEN
1 stop8h 27mJetBlue
Thu 12/255:47 pmDEN - BOS
Nonstop3h 53mJetBlue
Deal found 12/2$212
This Kiwi.com deal was found by Cheapflights users on 12/4. 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.
Fri 12/1210:52 amBOS - DEN
1 stop11h 48mFrontier
Thu 12/186:00 amDEN - BOS
1 stop23h 23mFrontier
Deal found 12/4$213
This United Airlines deal was found by Cheapflights users on 12/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:45 amBOS - MTJ
1 stop9h 04mUnited Airlines
Mon 12/221:15 pmMTJ - BOS
1 stop8h 23mUnited Airlines
Deal found 12/3$299

Find flight deals from Boston to Colorado

Keep the following information in mind while searching for Boston to Colorado flight deals. Data was last updated December 4, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$159
(American Airlines)

One-way from

$75
(Southwest)

Popular in

February

Cheapest in

January

Average price

$337

Good round-trip deal

$272 or less

Good one-way deal

$167 or less
Provider with most accurate pricing for Boston Logan Intl-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Denver Intl flights.
Search Deals
From Boston Logan Intl to Colorado
Search Deals
One-way flight from Boston Logan Intl to Colorado
Search Deals
High demand for flights, 3% potential price rise
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Boston Logan Intl to Colorado.
Search Deals
Price to beat on a one-way flight from Boston Logan Intl to Colorado.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Colorado 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 December 4, 2025.
Use the filters below to find and compare flights from Boston to Colorado that are best for you.

Fly from

Boston

Fly to

Colorado

Route

Depart

Return

Price

BostonColorado Springs

BOS - COS

BOSCOS

Boston Logan Intl

Mon 2/2

6:00 am-2:09 pm

1 stop10h 09m

Colorado Springs

Sat 2/7

12:08 pm-8:45 pm

1 stop6h 37m

$159

BostonColorado Springs

BOS - COS

BOSCOS

Boston Logan Intl

Sat 1/24

12:11 pm-5:41 pm

1 stop7h 30m

Colorado Springs

Mon 1/26

3:17 pm-11:30 pm

1 stop6h 13m

$159

BostonColorado Springs

BOS - COS

BOSCOS

Boston Logan Intl

Thu 1/29

7:05 am-2:09 pm

1 stop9h 04m

Colorado Springs

Tue 2/3

6:12 am-5:20 pm

1 stop9h 08m

$159

BostonColorado Springs

BOS - COS

BOSCOS

Boston Logan Intl

Thu 1/15

6:00 am-2:09 pm

2 stops10h 09m

Colorado Springs

Thu 1/29

6:12 am-4:53 pm

2 stops8h 41m

$169

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Thu 1/8

6:50 am-9:40 am

Nonstop4h 50m

Denver Intl

Thu 1/15

8:15 am-2:05 pm

Nonstop3h 50m

$176

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Thu 2/5

1:35 pm-4:25 pm

Nonstop4h 50m

Denver Intl

Sat 2/7

5:10 pm-10:55 pm

Nonstop3h 45m

$176

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Tue 1/6

7:20 am-10:24 am

Nonstop5h 04m

Denver Intl

Tue 1/13

11:38 am-5:35 pm

Nonstop3h 57m

$177

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Wed 1/28

7:20 am-10:24 am

Nonstop5h 04m

Denver Intl

Thu 2/5

11:38 am-5:35 pm

Nonstop3h 57m

$177

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Mon 1/19

7:00 am-9:50 am

Nonstop4h 50m

Denver Intl

Tue 1/27

10:55 am-9:45 pm

2 stops8h 50m

$182

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Sat 1/31

7:20 am-10:24 am

Nonstop5h 04m

Denver Intl

Tue 2/3

7:10 am-6:27 pm

1 stop9h 17m

$187

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/1

Showing 1-10 of 60 results
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Best time to book a flight from Boston to Colorado

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

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

Currently, November is the cheapest month in which you can book a flight from Boston to Colorado (average of $87). Flying from Boston to Colorado in September is currently the most expensive (average of $153). 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 BOS to CO?

Find hourly flight availability from Boston to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 4, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 11% on flights from Boston to Colorado by exploring options for tickets in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from Boston to Colorado. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Boston to Colorado flight should consider departing on Thursday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Boston to Colorado

Explore weekly flight availability from Boston to Colorado. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 4, 2025.

The most flights from BOS to USCO are scheduled on a Wednesday (16 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated December 4, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Boston to Colorado. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,251 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Crew

8.6

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
Southwest
8.0
Very good
4,251 reviews
Southwest
8.0
Very good
4,251 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Crew

8.6

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
Delta
7.9
Good
8,010 reviews
Southwest
8.0
Very good
4,251 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Crew

8.6

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
United Airlines
7.4
Good
9,066 reviews
Southwest
8.0
Very good
4,251 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Crew

8.6

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
American Airlines
7.2
Good
11,047 reviews
Southwest
8.0
Very good
4,251 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Crew

8.6

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
JetBlue
7.2
Good
2,899 reviews
Southwest
8.0
Very good
4,251 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Crew

8.6

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 Boston to Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Boston to Colorado?

    Boston Logan Intl (BOS) is the airport you will fly out of if you book a flight from Boston to Colorado. It is only a 2.6 mi journey to Logan Intl (BOS) from Boston’s city center.

  • How popular is this Boston to Colorado flight route?

    This flight path from Boston Logan Intl to Colorado was viewed by 76 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Boston to Colorado?

    For as low as $176, American Airlines can have you in Colorado from Boston in 4h 50m. There are 1748 mi between Boston and Colorado. This flight may include one or multiple stops.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $57. Users have also found prices from $88 and $90 on American Airlines and JetBlue, respectively.

  • What are the most popular routes from Boston to Colorado?

    When deciding which route to take from Boston to Colorado consider Boston Logan Intl - Denver Intl, Boston Logan Intl - Hayden Yampa Valley or Boston Logan Intl - Aspen Pitkin County as they are the most popular.

  • What are the most reliable airlines from Boston to Colorado?

    Before booking your flight to Colorado from Boston, check out the most reliable airlines to get you to your destination on time: Delta (89%), ITA Airways (80%), Icelandair( 78%).

  • What are the cheapest flights from Boston to Colorado?

    Looking for the cheapest flight from Boston to Colorado? While on average our users pay $761, our data indicates the cheapest price to be $83. The most popular route (Boston Logan Intl - Denver Intl), is priced around $134.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Boston to Colorado (average of $87). Flying from Boston to Colorado in September is currently the most expensive (average of $153). 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

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Alternative routes for Boston to Colorado

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Top 7 airlines flying from Boston to Colorado

Discover the top 7 airlines that operate flights from Boston to Colorado. 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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$106Average$206FlexibilityNo cancel feeOn-time62%
DeltaCheapest$116Average$319FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$143Average$374FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$144Average$314FlexibilityNo cancel feeOn-time83%
SouthwestCheapest$180Average$440FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$196Average$557FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$196Average$527FlexibilityNo cancel feeOn-time71%

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