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$109+ Cheap flights from Colorado to Boston (BOS)

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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BOS
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
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Cheap flight deals from Colorado to Boston

Keep the following information in mind while searching for Colorado to Boston flight deals. Data was last updated April 24, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$217
(Southwest)

One-way from

$109
(JetBlue)

Popular in

July

Cheapest in

January

Average price

$327

Good round-trip deal

$227 or less

Good one-way deal

$135 or less
Provider with most accurate pricing for Denver Intl-Boston Logan Intl flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Boston Logan Intl flights.
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From Colorado to Boston Logan Intl
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One-way flight from Colorado to Boston Logan Intl
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Highest demand for flights based on searches. 10% potential increase in price ($34 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Colorado to Boston Logan Intl.
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Price to beat on a one-way flight from Colorado to Boston Logan Intl.
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Find flight deals from Colorado to Boston

Cheapest flights from Colorado to Boston
Explore the most affordable flight options available from Colorado to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.

This Southwest deal was found by Cheapflights users on 4/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/244:05 pmCOS - BOS
1 stop5h 50mSouthwest
Sat 5/315:00 amBOS - COS
1 stop7h 20mSouthwest
Deal found 4/23$217
This JetBlue deal was found by Cheapflights users on 4/23. 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.
Fri 5/210:39 pmDEN - BOS
Nonstop3h 50mJetBlue
Wed 5/286:35 pmBOS - DEN
Nonstop4h 55mJetBlue
Deal found 4/23$217
This United Airlines deal was found by Cheapflights users on 4/23. 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 5/2012:10 pmCOS - BOS
1 stop7h 11mUnited Airlines
Sun 5/259:30 amBOS - COS
1 stop7h 21mUnited Airlines
Deal found 4/23$227
This Southwest deal was found by Cheapflights users on 4/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/145:50 pmDEN - BOS
Nonstop4h 05mSouthwest
Mon 6/235:35 amBOS - DEN
Nonstop4h 30mSouthwest
Deal found 4/23$227
This Frontier deal was found by Cheapflights users on 4/23. 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.
Thu 5/159:13 amDEN - BOS
1 stop13h 52mFrontier
Mon 5/1912:00 pmBOS - DEN
1 stop13h 59mFrontier
Deal found 4/23$240
This American Airlines deal was found by Cheapflights users on 4/23. 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.
Fri 6/612:08 pmASE - BOS
1 stop8h 30mAmerican Airlines
Sun 6/155:00 amBOS - ASE
1 stop10h 04mAmerican Airlines
Deal found 4/23$244
This American Airlines deal was found by Cheapflights users on 4/23. 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 8/1912:01 pmCOS - BOS
1 stop8h 34mAmerican Airlines
Sun 8/316:28 pmBOS - COS
1 stop6h 56mAmerican Airlines
Deal found 4/23$247
This Mytrip deal was found by Cheapflights users on 4/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/86:30 pmDEN - BOS
1 stop14h 12mMultiple Airlines
Fri 5/1611:59 amBOS - DEN
1 stop22h 42mMultiple Airlines
Deal found 4/22$263
This American Airlines deal was found by Cheapflights users on 4/23. 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.
Sat 6/77:21 amDEN - BOS
1 stop7h 18mAmerican Airlines
Sat 6/142:08 pmBOS - DEN
1 stop8h 06mAmerican Airlines
Deal found 4/23$266
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/211:40 amDEN - BOS
Nonstop4h 05mDelta
Sun 10/57:55 amBOS - DEN
Nonstop4h 49mDelta
Deal found 4/23$277
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1910:57 amCOS - BOS
2 stops10h 54mDelta
Mon 6/235:40 amBOS - COS
1 stop6h 22mDelta
Deal found 4/23$282
This Mytrip deal was found by Cheapflights users on 4/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/236:21 pmDEN - BOS
1 stop12h 51mAllegiant Air
Sat 5/3110:02 amBOS - DEN
1 stop9h 24mAllegiant Air
Deal found 4/22$285

Cheapflights Fare Finder

Customize your flight search to find flights from Colorado to Boston 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 April 24, 2025.
Use the filters below to find and compare flights from Colorado to Boston that are best for you.

Fly from

Colorado

Fly to

Boston

Route

Depart

Return

Price

Colorado SpringsBoston

COS - BOS

COSBOS

Colorado Springs

Sat 5/24

4:05 pm-11:55 pm

1 stop5h 50m

Boston Logan Intl

Sat 5/31

5:00 am-10:20 am

1 stop7h 20m

$217

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Fri 5/2

10:39 pm-4:29 am

Nonstop3h 50m

Boston Logan Intl

Sun 5/25

9:53 am-12:28 pm

Nonstop4h 35m

$217

Colorado SpringsBoston

COS - BOS

COSBOS

Colorado Springs

Tue 5/20

12:10 pm-9:21 pm

1 stop7h 11m

Boston Logan Intl

Sun 5/25

9:30 am-2:51 pm

1 stop7h 21m

$227

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Sat 6/14

5:50 pm-11:55 pm

Nonstop4h 05m

Boston Logan Intl

Mon 6/23

5:35 am-8:05 am

Nonstop4h 30m

$227

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Thu 5/15

9:13 am-1:05 am

1 stop13h 52m

Boston Logan Intl

Mon 5/19

12:00 pm-11:59 pm

1 stop13h 59m

$240

AspenBoston

ASE - BOS

ASEBOS

Aspen Pitkin County

Fri 6/6

12:08 pm-10:38 pm

1 stop8h 30m

Boston Logan Intl

Sun 6/15

5:00 am-1:04 pm

1 stop10h 04m

$244

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Thu 5/8

6:30 pm-10:42 am

1 stop14h 12m

Boston Logan Intl

Fri 5/16

11:59 am-8:41 am

1 stop22h 42m

$263

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Sat 6/7

9:03 am-6:29 pm

1 stop7h 26m

Boston Logan Intl

Sat 6/14

3:05 pm-8:14 pm

1 stop7h 09m

$266

Colorado SpringsBoston

COS - BOS

COSBOS

Colorado Springs

Sat 6/7

5:01 pm-1:30 am

1 stop6h 29m

Boston Logan Intl

Sat 6/14

6:41 am-11:31 am

1 stop6h 50m

$271

Colorado SpringsBoston

COS - BOS

COSBOS

Colorado Springs

Thu 6/19

10:57 am-11:51 pm

2 stops10h 54m

Boston Logan Intl

Mon 6/23

5:40 am-10:02 am

1 stop6h 22m

$282

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 56 results
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Best time to book a flight from Colorado to Boston

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

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

Currently, January is the cheapest month in which you can book a flight from Colorado to Boston (average of $218). Flying from Colorado to Boston in July is currently the most expensive (average of $311). 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 BOS?

Find hourly flight availability from Colorado to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 24, 2025.

When flying from Colorado to Boston, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Colorado to Boston

Explore weekly flight availability from Colorado to Boston. 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 April 24, 2025.

The most flights from USCO to BOS are scheduled on a Monday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

Rainfall in Boston by month

Plan your trip to Boston by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Boston ranges from 3.1 - 4.0 inches per month. March is typically the wettest month, when rainfall can reach 4.0 in. July is typically the driest time to visit Boston when rainfall is around 3.1 in.

Temperature in Boston by month

Plan your trip to Boston by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Boston, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. 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 Boston. Reviews last updated April 24, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Colorado to Boston. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,918 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,918 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,286 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,920 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,685 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
JetBlue
7.3
Good
2,924 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

Find useful and relevant information for your journey from Colorado to Boston. 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 into for flights to Boston from Colorado?

    Most people fly into Boston Logan Intl (BOS) if they book a flight to Boston from Colorado. Logan Intl is conveniently located just 2.6 mi from Boston’s city center.

  • How popular is this Colorado to Boston flight route?

    The Colorado to Boston Logan Intl flight path was viewed by 33 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    The cheapest airlines for a one-way flight from Colorado to Boston are JetBlue ($109), Southwest ($118), and American Airlines ($119).

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

    While some choose either Vail Eagle County - Boston Logan Intl or Durango La Plata County - Boston Logan Intl, Denver Intl - Boston Logan Intl is the most popular route from Colorado to Boston.

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

    Consider United Airlines (85%), KLM (77%) or Southwest (77%) when booking your flight. These represent the most reliable airlines when flying from Colorado to Boston.

  • What are the cheapest flights from Colorado to Boston?

    The cheapest flight price from Colorado to Boston is $98. On average you can expect to pay $495. The most popular route, (Denver Intl - Boston Logan Intl), can usually be booked for $217.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Colorado to Boston (average of $218). Flying from Colorado to Boston in July is currently the most expensive (average of $311). 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

Traveling to a place near Colorado?

Book flights to Colorado if you plan to visit one of these locations
Marlborough
Warwick
Cambridge
Waltham
Framingham
Chestnut Hill
Seekonk
Randolph
Brockton
Lowell
Woburn
Somerville
York Beach
Saco
Burlington
West Yarmouth
Smithfield
Lincoln
Salem
Chelsea

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Top 7 airlines flying from Colorado to Boston

Discover the top 7 airlines that operate flights from Colorado to Boston. 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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$92Average$184FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$106Average$177FlexibilityNo cancel feeOn-time62%
DeltaCheapest$120Average$336FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$124Average$275FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$191Average$552FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$197Average$398FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$198Average$472FlexibilityNo cancel feeOn-time71%

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