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$93+ 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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BOS
Dec 2 — Dec 91
Tue 12/2
Tue 12/9
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 November 2, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$171
(Priceline)

One-way from

$93
(American Airlines)

Popular in

June

Cheapest in

January

Average price

$307

Good round-trip deal

$247 or less

Good one-way deal

$159 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. 7% potential increase in price ($25 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 2, 2025.

This Priceline deal was found by Cheapflights users on 10/31. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1111:28 pmDEN - BOS
1 stop6h 14mJetBlue
Fri 12/129:49 amBOS - DEN
Nonstop4h 46mJetBlue
Deal found 10/31$171
This United Airlines deal was found by Cheapflights users on 10/31. 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.
Sat 11/155:45 pmDEN - BOS
Nonstop3h 54mUnited Airlines
Mon 12/154:49 pmBOS - DEN
Nonstop4h 51mUnited Airlines
Deal found 10/31$173
This Southwest deal was found by Cheapflights users on 10/31. 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 12/55:00 pmDEN - BOS
Nonstop3h 45mSouthwest
Thu 12/112:10 pmBOS - DEN
1 stop7h 45mSouthwest
Deal found 10/31$175
This JetBlue deal was found by Cheapflights users on 10/31. 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.
Wed 12/311:50 amDEN - BOS
1 stop7h 30mJetBlue
Sun 12/78:07 pmBOS - DEN
Nonstop4h 52mJetBlue
Deal found 10/31$176
This Southwest deal was found by Cheapflights users on 11/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/510:15 amDEN - BOS
Nonstop3h 50mSouthwest
Tue 12/97:45 amBOS - DEN
1 stop9h 20mSouthwest
Deal found 11/2$177
This Kissandfly.com deal was found by Cheapflights users on 10/31. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/511:50 amDEN - BOS
1 stop6h 17mJetBlue
Thu 12/113:40 pmBOS - DEN
1 stop8h 27mJetBlue
Deal found 10/31$178
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:59 amDEN - BOS
1 stop7h 23mMultiple Airlines
Fri 12/511:19 amBOS - DEN
2 stops14h 40mMultiple Airlines
Deal found 11/1$179
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/56:31 pmDEN - BOS
1 stop13h 30mMultiple Airlines
Thu 12/1111:28 amBOS - DEN
1 stop12h 10mMultiple Airlines
Deal found 11/1$180
This Delta deal was found by Cheapflights users on 10/30. 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 11/1411:47 amDEN - BOS
Nonstop3h 55mDelta
Mon 11/177:45 amBOS - DEN
Nonstop4h 54mDelta
Deal found 10/30$181
This Southwest deal was found by Cheapflights users on 11/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/35:00 pmDEN - BOS
Nonstop3h 45mSouthwest
Fri 12/55:30 amBOS - DEN
2 stops7h 45mSouthwest
Deal found 11/1$182
This Priceline deal was found by Cheapflights users on 10/31. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1511:50 amDEN - BOS
1 stop6h 22mJetBlue
Mon 12/158:07 pmBOS - DEN
Nonstop4h 52mJetBlue
Deal found 10/31$184
This JetBlue deal was found by Cheapflights users on 10/31. 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 12/1211:28 pmDEN - BOS
1 stop6h 13mJetBlue
Mon 12/153:40 pmBOS - DEN
1 stop8h 27mJetBlue
Deal found 10/31$185

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 November 2, 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

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Wed 12/10

11:55 pm-9:40 am

1 stop7h 45m

Boston Logan Intl

Fri 12/12

6:20 pm-9:05 pm

Nonstop4h 45m

$175

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Thu 1/22

11:38 am-5:35 pm

Nonstop3h 57m

Boston Logan Intl

Mon 1/26

7:20 am-10:26 am

Nonstop5h 06m

$177

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Mon 12/8

5:00 pm-10:45 pm

Nonstop3h 45m

Boston Logan Intl

Sun 12/14

1:30 pm-6:35 pm

1 stop7h 05m

$177

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Tue 12/9

8:15 am-5:20 pm

1 stop7h 05m

Boston Logan Intl

Sun 12/14

6:10 am-9:00 am

Nonstop4h 50m

$177

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Wed 12/3

8:00 am-4:45 pm

2 stops6h 45m

Boston Logan Intl

Fri 12/5

5:30 am-11:15 am

2 stops7h 45m

$197

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Wed 12/10

10:20 am-9:05 pm

2 stops8h 45m

Boston Logan Intl

Tue 12/16

5:30 am-11:15 am

2 stops7h 45m

$197

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Thu 1/29

4:45 pm-10:30 pm

Nonstop3h 45m

Boston Logan Intl

Mon 2/2

6:25 am-1:50 pm

1 stop9h 25m

$207

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Mon 1/5

9:10 am-6:10 pm

1 stop7h 00m

Boston Logan Intl

Fri 1/9

4:50 pm-7:35 pm

Nonstop4h 45m

$214

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Thu 12/11

11:28 pm-7:42 am

1 stop6h 14m

Boston Logan Intl

Sun 12/14

8:07 pm-10:59 pm

Nonstop4h 52m

$215

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Thu 12/18

6:00 am-2:20 pm

1 stop6h 20m

Boston Logan Intl

Tue 12/23

3:15 pm-6:08 pm

Nonstop4h 53m

$219

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/31

Showing 1-10 of 60 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, August is the cheapest month in which you can book a flight from Colorado to Boston (average of $65). Flying from Colorado to Boston in September is currently the most expensive (average of $151). 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 November 2, 2025.

A simple way to save on the total cost of your ticket is to fly from Colorado to Boston at noon. If you’re flexible enough to do this you can expect to save up to 7% on your trip compared to booking a flight in the evening.

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

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

Travelers seeking maximum savings on their Colorado to Boston flight should consider departing on Monday mornings 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.

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 20 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 Colorado to Boston?

    A quick flight from Colorado to Boston can take about 3h 57m. Southwest provides one of the quickest options available for as low as $177. The distance between Colorado and Boston is about 1748 mi. This flight may include one or multiple stops.

  • 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 American Airlines ($93), Southwest ($98), and United Airlines ($99).

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

    While some choose either Colorado Springs - 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 Icelandair (73%), EL AL (72%) or TAP AIR PORTUGAL (67%) 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 $88. On average you can expect to pay $736. The most popular route, (Denver Intl - Boston Logan Intl), can usually be booked for $148.

  • 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, August is the cheapest month in which you can book a flight from Colorado to Boston (average of $65). Flying from Colorado to Boston in September is currently the most expensive (average of $151). 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 Boston?

Book flights to Boston if you plan to visit one of these locations
Cambridge
Medford
Hampton Beach
Watertown
Seabrook
Seekonk
Lincoln
Lowell
Smithfield
Cranston
Chestnut Hill
Peabody
Quincy
York Beach
Warwick
Swansea
Old Orchard Beach
Brockton
Waltham
Chelsea

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Top 6 airlines flying from Colorado to Boston

Discover the top 6 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 November 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$104Average$207FlexibilityNo cancel feeOn-time62%
DeltaCheapest$129Average$282FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$129Average$282FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$158Average$411FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$187Average$398FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$195Average$539FlexibilityNo cancel feeOn-time69%

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