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$110+ Cheap flights from Denver to Boston (DEN - 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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BOS
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Boston Logan Intl are usually found in January or September, booked 67 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Denver to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) 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 September 11, 2025.

Round-trip from

$170
(Southwest)

One-way from

$110
(Southwest)

Popular in

December

Cheapest in

January

Average price

$277

Good round-trip deal

$244 or less

Good one-way deal

$170 or less
From Denver Intl to Boston Logan Intl
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One-way flight from Denver Intl to Boston Logan Intl
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High demand for flights, 5% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Denver Intl to Boston Logan Intl.
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Price to beat on a one-way flight from Denver Intl to Boston Logan Intl.
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Find flight deals from Denver to Boston

Cheapest flights from Denver to Boston
Explore the most affordable flight options available from Denver to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This CheapOair deal was found by Cheapflights users on 9/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1511:59 pmDEN - BOS
Nonstop3h 51mJetBlue
Thu 10/167:05 pmBOS - DEN
Nonstop4h 39mJetBlue
Deal found 9/11$171
This Southwest deal was found by Cheapflights users on 9/11. 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 10/2111:40 pmDEN - BOS
1 stop6h 45mSouthwest
Sat 10/253:25 pmBOS - DEN
1 stop7h 40mSouthwest
Deal found 9/11$174
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Sat 10/411:40 amDEN - BOS
1 stop18h 12mMultiple Airlines
Tue 10/76:17 amBOS - DEN
1 stop26h 57mMultiple Airlines
Deal found 9/10$175
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 11/712:59 amDEN - BOS
1 stop7h 49mFrontier
Mon 11/1712:20 pmBOS - DEN
1 stop7h 22mFrontier
Deal found 9/9$176
This Delta deal was found by Cheapflights users on 9/11. 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 11/611:40 amDEN - BOS
Nonstop4h 00mDelta
Sun 11/97:45 amBOS - DEN
Nonstop4h 57mDelta
Deal found 9/11$177
This Southwest deal was found by Cheapflights users on 9/9. 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 10/176:40 pmDEN - BOS
Nonstop3h 50mSouthwest
Wed 10/226:45 amBOS - DEN
Nonstop4h 40mSouthwest
Deal found 9/9$178
This Cheapflightsfares deal was found by Cheapflights users on 9/8. 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.
Thu 9/1811:59 pmDEN - BOS
1 stop30h 12mFrontier
Sat 9/278:56 amBOS - DEN
1 stop25h 40mFrontier
Deal found 9/8$179
This JetBlue deal was found by Cheapflights users on 9/11. 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 11/121:24 pmDEN - BOS
Nonstop3h 46mJetBlue
Sun 11/169:42 amBOS - DEN
Nonstop4h 47mJetBlue
Deal found 9/11$180
This Southwest deal was found by Cheapflights users on 9/9. 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 11/118:15 amDEN - BOS
1 stop11h 25mSouthwest
Sat 11/1512:35 pmBOS - DEN
1 stop8h 20mSouthwest
Deal found 9/9$181
This Southwest deal was found by Cheapflights users on 9/10. 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 10/2110:20 amDEN - BOS
2 stops8h 50mSouthwest
Wed 10/226:45 amBOS - DEN
Nonstop4h 40mSouthwest
Deal found 9/10$182
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Sun 11/911:37 amDEN - BOS
1 stop18h 15mFrontier
Fri 11/1412:20 pmBOS - DEN
1 stop7h 22mFrontier
Deal found 9/9$183
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Thu 11/611:01 amDEN - BOS
1 stop22h 54mMultiple Airlines
Mon 11/1712:20 pmBOS - DEN
1 stop7h 22mMultiple Airlines
Deal found 9/9$184

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver 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 September 11, 2025.
Use the filters below to find and compare flights from Denver to Boston that are best for you.

Fly from

Denver

Fly to

Boston

Route

Depart

Return

Price

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Wed 11/5

1:24 pm-7:10 pm

Nonstop3h 46m

Boston Logan Intl

Mon 11/10

9:42 am-12:29 pm

Nonstop4h 47m

$177

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Mon 10/20

6:40 pm-12:30 am

Nonstop3h 50m

Boston Logan Intl

Sat 10/25

6:30 am-9:10 am

Nonstop4h 40m

$177

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Wed 11/5

2:57 pm-11:59 pm

1 stop7h 02m

Boston Logan Intl

Mon 11/10

7:45 am-10:42 am

Nonstop4h 57m

$187

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Fri 11/14

11:59 pm-5:56 am

Nonstop3h 57m

Boston Logan Intl

Sun 11/16

5:30 am-10:24 am

1 stop6h 54m

$196

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Fri 10/24

11:25 am-9:00 pm

1 stop7h 35m

Boston Logan Intl

Tue 10/28

9:42 am-12:29 pm

Nonstop4h 47m

$221

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Wed 11/12

8:15 am-5:20 pm

1 stop7h 05m

Boston Logan Intl

Mon 11/17

5:30 am-11:15 am

2 stops7h 45m

$225

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Fri 10/31

1:24 pm-7:10 pm

Nonstop3h 46m

Boston Logan Intl

Mon 11/3

5:11 am-11:05 am

1 stop7h 54m

$227

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Sat 10/18

11:40 am-5:40 pm

Nonstop4h 00m

Boston Logan Intl

Thu 10/23

6:00 am-10:59 am

1 stop6h 59m

$229

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Wed 9/24

5:50 am-5:05 pm

2 stops9h 15m

Boston Logan Intl

Tue 9/30

7:05 am-9:35 am

Nonstop4h 30m

$241

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Sat 10/18

8:05 am-2:07 pm

Nonstop4h 02m

Boston Logan Intl

Wed 10/22

7:13 pm-9:48 pm

Nonstop4h 35m

$245

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 24 results
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The best insider tips for Denver to Boston flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Denver to Boston trip
Airports
DEN

Use the A Line train for a 37-minute ride from DEN to Union Station, avoiding traffic and saving money.

Read more about DENby Emily Zemler
BOS

Take the Silver Line bus from BOS to South Station for free, offering easy access to downtown Boston.

Read more about BOSby Paul Rubio
Our travel experts
Paul Rubio

Paul Rubio

Expert on BOS

Paul Rubio

Paul Rubio

Travel journalist and photographer Paul Rubio is a Miami native (and current resident), who has lived in nine countries and traveled to 137. He is an expert in luxury travel, eco-travel, loyalty programs, hotels, airports and airlines. He is a contributing editor at AFAR, Condé Nast Traveler, LUXURY Magazine, and Palm Beach Illustrated.

Read more
Emily Zemler

Emily Zemler

Expert on DEN

Emily Zemler

Emily Zemler

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Read more

Best time to book a flight from Denver to Boston

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

How far ahead should I book a flight from Denver to Boston?

Use this chart to determine the optimal time to book a round-trip flight from Denver to Boston. Price data was last updated on August 29, 2025.

The best time to book flights from Denver to Boston is 67 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Denver to Boston (average of $218). Flying from Denver 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 DEN to BOS?

Find hourly flight availability from Denver 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 September 11, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 30% on flights from Denver to Boston by exploring options for tickets in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from Denver to Boston. Price data was last updated on September 7, 2025.

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

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 September 11, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Denver to Boston by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
JetBlue
7.2
Good
2,913 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,177 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Denver to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Denver to Boston?

    If you wish to fly to Boston from Denver, then you need to book flights from Denver Intl to Boston Logan Intl. There are 14 flights from Denver Intl (DEN) to Logan Intl (BOS) per day to choose from. Flights to Boston from Denver Intl are available from 6 different airlines, which means you should have some options if you want to compare airfare deals. 3h 45m is how long a nonstop flight from Denver to Boston Logan Intl typically takes.

  • How popular is this Denver to Boston flight route?

    This flight path from Denver Intl to Boston Logan Intl was viewed by 18 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 Denver to Boston?

    Airlines like JetBlue, Southwest, and Delta fly from Denver to Boston in about 3h 46m. The time it takes to get you to your destination can typically vary by up to 3h 16m. The distance from Denver to Boston is about 1748 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Denver to Boston round-trip?

    Cheapflights users have booked flights from Denver to Boston round-trip from $105. Other airlines that can offer you cheap pricing are Delta, from $127, and JetBlue, from $128. Frontier is priced at 65% lower than the current average price of a flight leaving 3 months from now.

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

    No one likes to see their flight delayed. When booking a flight from Denver to Boston consider choosing China Eastern (92%), EL AL (85%) or Delta (80%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Denver to Boston?

    Looking at all options, your cheapest flight can be booked for $105. While the most popular route (Denver Intl - Boston Logan Intl) can be booked for $154 on average, our data indicates $608 when flying from Denver to Boston.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Denver to Boston (average of $218). Flying from Denver 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 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
Chelsea
Warwick
Peabody
Quincy
York Beach
Swansea
Waltham
Saugus
Burlington

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Denver to Boston

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Denver to Boston

Discover the top 6 airlines that operate flights from Denver 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$105Average$191FlexibilityNo cancel feeOn-time62%
DeltaCheapest$127Average$286FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$128Average$281FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$180Average$298FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$196Average$378FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$197Average$340FlexibilityNo cancel feeOn-time63%

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