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$114+ 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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BOS
May 8 — May 151
Fri 5/8
Fri 5/15
1 adult, Economy
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Find cheap flights from Denver to Boston with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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3. Compare prices and book

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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

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 April 8, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 4/5. 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.
Wed 4/2211:59 pm
DEN
-
BOS
Nonstop3h 48m
JetBlue
Sun 4/268:20 pm
BOS
-
DEN
Nonstop4h 44m
JetBlue
Deal found 4/5$197
This Southwest deal was found by Cheapflights users on 4/6. 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.
Thu 4/305:45 am
DEN
-
BOS
1 stop7h 20m
Southwest
Wed 5/65:35 am
BOS
-
DEN
Nonstop4h 30m
Southwest
Deal found 4/6$199
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 4/306:00 am
DEN
-
BOS
2 stops23h 58m
Multiple Airlines
Wed 5/69:34 am
BOS
-
DEN
1 stop7h 54m
Multiple Airlines
Deal found 4/6$200
This Cheapflightsfares deal was found by Cheapflights users on 4/6. 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 5/711:28 pm
DEN
-
BOS
Nonstop3h 54m
JetBlue
Mon 5/117:31 pm
BOS
-
DEN
Nonstop4h 42m
JetBlue
Deal found 4/6$202
This Kiwi.com deal was found by Cheapflights users on 4/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2911:00 am
DEN
-
BOS
2 stops12h 31m
Frontier
Tue 5/59:31 am
BOS
-
DEN
1 stop14h 53m
Frontier
Deal found 4/3$203
This Southwest deal was found by Cheapflights users on 4/6. 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 5/910:15 am
DEN
-
BOS
2 stops8h 50m
Southwest
Wed 5/134:45 pm
BOS
-
DEN
Nonstop4h 45m
Southwest
Deal found 4/6$204
This Frontier deal was found by Cheapflights users on 4/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/281:09 pm
DEN
-
BOS
1 stop10h 22m
Frontier
Tue 5/56:00 am
BOS
-
DEN
1 stop10h 04m
Frontier
Deal found 4/3$205
This Frontier deal was found by Cheapflights users on 4/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/221:09 pm
DEN
-
BOS
1 stop10h 22m
Frontier
Mon 5/412:42 pm
BOS
-
DEN
1 stop11h 47m
Frontier
Deal found 4/4$206
This United Airlines deal was found by Cheapflights users on 4/3. 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.
Sat 9/2611:59 pm
DEN
-
BOS
Nonstop3h 59m
United Airlines
Sat 10/37:30 am
BOS
-
DEN
Nonstop4h 32m
United Airlines
Deal found 4/3$207
This Kiwi.com deal was found by Cheapflights users on 4/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:30 am
DEN
-
BOS
1 stop16h 54m
Frontier
Mon 5/1810:17 am
BOS
-
DEN
1 stop24h 07m
Frontier
Deal found 4/3$208
This American Airlines deal was found by Cheapflights users on 4/6. 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.
Mon 5/411:59 pm
DEN
-
BOS
1 stop8h 53m
American Airlines
Wed 5/612:07 pm
BOS
-
DEN
1 stop8h 19m
American Airlines
Deal found 4/6$209

Find 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 April 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$197
(Cheapflightsfares)

One-way from

$114
(Southwest)

Popular in

March

Cheapest in

January

Average price

$312

Good round-trip deal

$284 or less

Good one-way deal

$172 or less
Provider with most accurate pricing for Denver Intl-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Boston Logan Intl flights.
Search Deals
From Denver Intl to Boston Logan Intl
Search Deals
One-way flight from Denver Intl to Boston Logan Intl
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($13 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Denver Intl to Boston Logan Intl.
Search Deals
Price to beat on a one-way flight from Denver Intl to Boston Logan Intl.
Search Deals

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 April 8, 2026.
Use the filters below to find and compare flights from Denver to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Sun 5/10

7:10 pm-1:00 am

Nonstop3h 50m

Boston Logan Intl

Wed 5/13

4:45 pm-7:30 pm

Nonstop4h 45m

$199

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Wed 5/27

3:00 pm-10:20 pm

1 stop5h 20m

Boston Logan Intl

Sat 5/30

5:15 am-7:45 am

Nonstop4h 30m

$209

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Mon 4/20

7:00 pm-12:50 am

Nonstop3h 50m

Boston Logan Intl

Wed 4/22

6:20 am-11:15 am

1 stop6h 55m

$212

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Wed 5/13

11:59 pm-6:04 am

Nonstop4h 05m

Boston Logan Intl

Fri 5/15

8:39 pm-11:28 pm

Nonstop4h 49m

$250

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Fri 5/29

5:20 am-3:10 pm

1 stop7h 50m

Boston Logan Intl

Sun 5/31

5:15 am-7:45 am

Nonstop4h 30m

$277

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Mon 6/22

11:59 pm-5:58 am

Nonstop3h 59m

Boston Logan Intl

Fri 6/26

8:15 pm-12:58 am

1 stop6h 43m

$287

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Thu 5/14

11:59 pm-6:04 am

Nonstop4h 05m

Boston Logan Intl

Tue 5/19

4:52 pm-7:40 pm

Nonstop4h 48m

$305

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Fri 5/22

7:00 pm-12:50 am

Nonstop3h 50m

Boston Logan Intl

Fri 5/29

6:55 pm-11:15 pm

1 stop6h 20m

$307

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Mon 5/4

11:55 pm-9:45 am

1 stop7h 50m

Boston Logan Intl

Thu 5/7

1:20 pm-6:50 pm

1 stop7h 30m

$317

DenverBoston

DEN - BOS

DENBOS

Denver Intl

Sat 5/9

8:15 am-6:45 pm

2 stops8h 30m

Boston Logan Intl

Wed 5/13

6:20 am-2:05 pm

2 stops9h 45m

$327

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/6

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Denver to Boston

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Boston in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
Super.comPrice Accuracy-Trust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
BudgetAirPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Denver-Boston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Boston flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Boston flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Boston flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Boston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 April 3, 2026.

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, August is the cheapest month in which you can book a flight from Denver to Boston (average of $99). Flying from Denver to Boston in March is currently the most expensive (average of $191). 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 April 8, 2026.

Unlike in the morning, when flights are generally more expensive, you can save up to 24% 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 April 4, 2026.

Travelers seeking maximum savings on their Denver to Boston flight should consider departing on Wednesday 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.

How much does it cost to fly round-trip from Denver to Boston?

The best insider tips for Denver to Boston flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Denver to Boston trip
Our travel experts
Paul Rubio

Paul Rubio

Expert on BOS

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 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

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 8, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited 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
4,337 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,337 reviews
Southwest
8.0
Very good
4,337 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,387 reviews
Southwest
8.0
Very good
4,337 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,550 reviews
Southwest
8.0
Very good
4,337 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
JetBlue
7.2
Good
2,921 reviews
Southwest
8.0
Very good
4,337 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Frontier
5.7
Fair
3,000 reviews
Southwest
8.0
Very good
4,337 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 10 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 48m 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 26 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 Southwest and United Airlines fly from Denver to Boston in about 3h 50m. The time it takes to get you to your destination is usually consistent. The distance from Denver to Boston is about 1748 mi. Most flights are nonstop.

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

    Cheapflights users have booked flights from Denver to Boston round-trip from $95. Other airlines that can offer you cheap pricing are JetBlue, from $120, and Delta, from $123. Frontier is priced at 70% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $95. However, be on the lookout for offers from Southwest and JetBlue, as they are both options that can get you from Denver to Boston for a low price.

  • 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 EL AL (88%), United Airlines (87%) or Air France (85%) 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 $117. While the most popular route (Denver Intl - Boston Logan Intl) can be booked for $166 on average, our data indicates $696 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, August is the cheapest month in which you can book a flight from Denver to Boston (average of $99). Flying from Denver to Boston in March is currently the most expensive (average of $191). 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
Medford
Cambridge
Concord
Hampton Beach
Watertown
Brockton
Seekonk
Cranston
Chelsea
Seabrook
Warwick
Peabody
York Beach
Londonderry
Swansea
Old Orchard Beach
Lincoln
Quincy
Waltham
Lowell

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 April 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$95Average$240FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$120Average$284FlexibilityNo cancel feeOn-time62%
DeltaCheapest$123Average$287FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$158Average$291FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$178Average$370FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$185Average$353FlexibilityNo cancel feeOn-time63%

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