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$99+ 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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BOS
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Colorado to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Colorado (USCO) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$130
(Frontier)

One-way from

$99
(JetBlue)
From Colorado to Boston Logan Intl
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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 January 21, 2025.

This Frontier deal was found by Cheapflights users on 1/20. 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.
Mon 3/1011:25 pmDEN - BOS
1 stop9h 08mFrontier
Mon 3/1711:33 amBOS - DEN
1 stop13h 56mFrontier
Deal found 1/20$130
This JetBlue deal was found by Cheapflights users on 1/20. 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.
Mon 2/311:55 pmDEN - BOS
Nonstop3h 40mJetBlue
Tue 2/48:15 pmBOS - DEN
Nonstop4h 44mJetBlue
Deal found 1/20$197
This Delta deal was found by Cheapflights users on 1/20. 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.
Fri 1/3111:30 amDEN - BOS
Nonstop3h 55mDelta
Mon 2/37:20 amBOS - DEN
Nonstop5h 00mDelta
Deal found 1/20$207
This United Airlines deal was found by Cheapflights users on 1/20. 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 2/610:45 amCOS - BOS
1 stop7h 03mUnited Airlines
Sun 2/96:00 amBOS - COS
1 stop7h 34mUnited Airlines
Deal found 1/20$217
This American Airlines deal was found by Cheapflights users on 1/20. 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 1/316:00 amCOS - BOS
1 stop9h 20mAmerican Airlines
Tue 2/48:29 amBOS - COS
1 stop9h 24mAmerican Airlines
Deal found 1/20$227
This Southwest deal was found by Cheapflights users on 1/20. 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.
Fri 2/76:30 amCOS - BOS
1 stop6h 45mSouthwest
Fri 2/285:45 amBOS - COS
1 stop11h 05mSouthwest
Deal found 1/20$247
This Southwest deal was found by Cheapflights users on 1/19. 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.
Tue 2/115:45 pmDEN - BOS
Nonstop3h 50mSouthwest
Tue 2/185:00 amBOS - DEN
Nonstop4h 55mSouthwest
Deal found 1/19$264
This Delta deal was found by Cheapflights users on 1/21. 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.
Fri 2/76:00 amCOS - BOS
1 stop6h 49mDelta
Fri 2/281:47 pmBOS - COS
1 stop9h 18mDelta
Deal found 1/21$277
This United Airlines deal was found by Cheapflights users on 1/20. 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.
Mon 2/1011:59 pmDEN - BOS
1 stop7h 17mUnited Airlines
Wed 2/192:00 pmBOS - DEN
1 stop7h 24mUnited Airlines
Deal found 1/20$287
This Mytrip deal was found by Cheapflights users on 1/20. 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 2/286:08 pmDEN - BOS
2 stops21h 24mMultiple Airlines
Mon 3/31:52 pmBOS - DEN
3 stops25h 38mMultiple Airlines
Deal found 1/20$288
This Sun Country Air deal was found by Cheapflights users on 1/19. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/2610:20 amDEN - BOS
1 stop11h 23mSun Country Air
Fri 7/411:34 amBOS - DEN
1 stop8h 41mSun Country Air
Deal found 1/19$295
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Wed 2/125:27 amDRO - BOS
1 stop7h 47mAmerican Airlines
Tue 2/181:10 pmBOS - DRO
1 stop10h 20mAmerican Airlines
Deal found 1/20$338

Find flights from Colorado to Boston within your budget

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Mon 3/10

11:25 pm-10:33 am

1 stop9h 08m

Boston Logan Intl

Mon 3/17

11:33 am-11:29 pm

1 stop13h 56m

$130

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Mon 2/3

11:55 pm-5:35 am

Nonstop3h 40m

Boston Logan Intl

Tue 2/4

8:15 pm-10:59 pm

Nonstop4h 44m

$197

Colorado SpringsBoston

COS - BOS

COSBOS

Colorado Springs

Thu 2/6

10:45 am-7:48 pm

1 stop7h 03m

Boston Logan Intl

Sun 2/9

6:00 am-11:34 am

1 stop7h 34m

$217

Colorado SpringsBoston

COS - BOS

COSBOS

Colorado Springs

Fri 1/31

6:00 am-5:20 pm

1 stop9h 20m

Boston Logan Intl

Tue 2/4

8:29 am-3:53 pm

1 stop9h 24m

$227

Colorado SpringsBoston

COS - BOS

COSBOS

Colorado Springs

Fri 2/7

6:30 am-3:15 pm

1 stop6h 45m

Boston Logan Intl

Fri 2/28

5:45 am-2:50 pm

1 stop11h 05m

$247

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Fri 1/31

11:30 am-5:25 pm

Nonstop3h 55m

Boston Logan Intl

Thu 2/6

7:20 am-10:20 am

Nonstop5h 00m

$252

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Tue 2/11

5:45 pm-11:35 pm

Nonstop3h 50m

Boston Logan Intl

Tue 2/18

5:00 am-7:55 am

Nonstop4h 55m

$264

Colorado SpringsBoston

COS - BOS

COSBOS

Colorado Springs

Fri 2/7

6:00 am-2:49 pm

1 stop6h 49m

Boston Logan Intl

Fri 2/28

1:47 pm-9:05 pm

1 stop9h 18m

$277

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Mon 2/10

6:00 am-2:07 pm

1 stop6h 07m

Boston Logan Intl

Sat 2/22

12:25 pm-5:59 pm

1 stop7h 34m

$287

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Fri 2/28

6:08 pm-5:32 pm

2 stops21h 24m

Boston Logan Intl

Mon 3/3

1:52 pm-1:30 pm

3 stops25h 38m

$288

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 57 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.

Travel insights for flights from Colorado to Boston

Get recent, data-driven insights about flights from Colorado to Boston including ideal travel times, pricing trends, and more.

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 January 21, 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 January 21, 2025.

The most flights from USCO to BOS are scheduled on a Monday (14 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (7 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 January 21, 2025.
Read reviews from past customers who have flown Frontier, JetBlue and United Airlines 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.
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,659 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,696 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

JetBlue
7.4
Good
3,201 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,982 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 34 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 ($99), Frontier ($100), and Delta ($107).

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

    While some choose either Colorado Springs - Boston Logan Intl or Grand Junction Regnl - 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 Southwest (83%), Delta (81%) or United Airlines (80%) 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 $619. The most popular route, (Denver Intl - Boston Logan Intl), can usually be booked for $152.

  • 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
Sturbridge
Warwick
Marlborough
Waltham
Brockton
Cambridge
Watertown
Framingham
Somerville
Chestnut Hill
Seekonk
Randolph
Lowell
West Yarmouth
Woburn
Saco
Seabrook
Salem
Brookline
Fall River

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Alternative routes for Colorado to Boston

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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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$94Average$184FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$106Average$181FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$109Average$406FlexibilityNo cancel feeOn-time62%
DeltaCheapest$123Average$354FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$187Average$577FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$188Average$457FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$193Average$481FlexibilityNo cancel feeOn-time71%
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