DEN - BOS

$125 Find Cheap Flights from Denver to Boston - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Boston departing on 9/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$222
Typical prices: $279-$479
Southwest
Thu 8/27Mon 8/31
DEN - BOS • 1 stop
Cheapest non-stop
$224
Typical prices: $227-$461
JetBlue
Fri 10/30Mon 11/2
DEN - BOS • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
JetBlue adds free Wi-Fi; Delta offers it for SkyMiles members on domestic flights.
For more room, JetBlue Even More Space beats Delta Comfort Plus and United Economy Plus.
Expert advice
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Expert advice
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Nonstop flights
You can fly direct with Delta, JetBlue and others. Average duration is 4h 01m
Direct flights
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Avoid delays
Most punctual • 82% on-time
Best time • Fewest delays
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Top layover airports
Cheapest • Avg $260 (round-trip)
Shortest trip • 5h 56m (one-way)
Insights
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Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 27% compared to booking last minute.
Insights
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When to travel
Cheapest • 21% price drop
Most popular
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Flight Deals

Cheap Flights from Denver to Boston (DEN-BOS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Boston that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to Boston

Thu, Aug 27 - Mon, Aug 31
Southwest Logo
2:30 pm - 10:10 pmDEN  Denver Intl-BOS Boston Logan Intl
5h 40m1 stop Baltimore/Washington
Southwest Logo
5:00 am - 11:00 amBOS  Boston Logan Intl-DEN Denver Intl
8h 00m2 stops Lambert-St Louis Omaha Eppley Airfield
$222Southwest
Tue, Sep 29 - Fri, Oct 2
Frontier Logo
7:10 pm - 10:22 amDEN  Denver Intl-BOS Boston Logan Intl
37h 12m2 stops Atlanta Hartsfield-Jackson Orlando
Frontier Logo
12:54 pm - 9:24 pmBOS  Boston Logan Intl-DEN Denver Intl
10h 30m1 stop Atlanta Hartsfield-Jackson
$223Frontier
Fri, Oct 30 - Mon, Nov 2
JetBlue Logo
1:00 pm - 6:46 pmDEN  Denver Intl-BOS Boston Logan Intl
3h 46mnonstop
JetBlue Logo
10:22 am - 1:10 pmBOS  Boston Logan Intl-DEN Denver Intl
4h 48mnonstop
$224JetBlue
Thu, Aug 27 - Mon, Aug 31
JetBlue Logo
11:37 pm - 5:30 amDEN  Denver Intl-BOS Boston Logan Intl
3h 53mnonstop
JetBlue Logo
8:03 pm - 10:42 pmBOS  Boston Logan Intl-DEN Denver Intl
4h 39mnonstop
$224JetBlue
Tue, Sep 15 - Wed, Sep 23
Frontier Logo
7:10 pm - 10:22 amDEN  Denver Intl-BOS Boston Logan Intl
37h 12m2 stops Atlanta Hartsfield-Jackson Orlando
Frontier Logo
12:54 pm - 9:03 pmBOS  Boston Logan Intl-DEN Denver Intl
10h 09m1 stop Atlanta Hartsfield-Jackson
$224Frontier
Tue, Sep 15 - Fri, Sep 18
United Airlines Logo
5:47 pm - 11:54 pmDEN  Denver Intl-BOS Boston Logan Intl
4h 07mnonstop
United Airlines Logo
8:16 pm - 10:51 pmBOS  Boston Logan Intl-DEN Denver Intl
4h 35mnonstop
$226United Airlines
Fri, Aug 28 - Mon, Aug 31
United Airlines Logo
11:59 pm - 5:59 amDEN  Denver Intl-BOS Boston Logan Intl
4h 00mnonstop
United Airlines Logo
7:45 am - 10:22 amBOS  Boston Logan Intl-DEN Denver Intl
4h 37mnonstop
$226United Airlines
Wed, Oct 21 - Sat, Oct 24
Delta Logo
11:28 am - 5:32 pmDEN  Denver Intl-BOS Boston Logan Intl
4h 04mnonstop
Delta Logo
7:40 am - 10:18 amBOS  Boston Logan Intl-DEN Denver Intl
4h 38mnonstop
$226Delta
Tue, Sep 15 - Sat, Sep 19
Southwest Logo
6:00 pm - 12:10 amDEN  Denver Intl-BOS Boston Logan Intl
4h 10mnonstop
Southwest Logo
5:40 am - 8:00 amBOS  Boston Logan Intl-DEN Denver Intl
4h 20mnonstop
$226Southwest
Fri, Nov 6 - Sun, Nov 8
Delta Logo
11:28 am - 5:32 pmDEN  Denver Intl-BOS Boston Logan Intl
4h 04mnonstop
Delta Logo
7:40 am - 10:18 amBOS  Boston Logan Intl-DEN Denver Intl
4h 38mnonstop
$236Delta
Booking Insights

KAYAK's insights & trends for Denver to Boston flights

Get data-powered insights and trends into flights from Denver to Boston to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Denver to Boston?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Denver to Boston departing in August.

Flight prices are below average for this route right now.

Flights to Boston from Denver usually cost between $279 and $479 in August.
The lowest price found in the past 5 days was $222 on Southwest (Aug 27-Aug 31).

What’s the cheapest day of the week to fly from Denver to Boston?

The average price of all round-trip flights from Denver to Boston clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Boston on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Denver to Boston. For your return ticket, we recommend flying on a Wednesday and avoiding Sundays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Boston, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Denver to Boston is January, where tickets cost $279 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $428 and $424 respectively.

Can I save money by flying with a layover from Denver to Boston?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $325 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to Boston, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Denver to Boston, you should book around 3 weeks before departure, which saves you about 27% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Expert advice

Expert advice for your flight from Denver to Boston

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and Delta

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Harriet Baskas

Harriet Baskas

Expert on JetBlue and DEN

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Blane Bachelor

Blane Bachelor

Expert on Southwest and BOS

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Good to know

Low season

January

Cheapest flight

$125
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 20% increase in price.
Flight from Denver to Boston

When to book flights from Denver to Boston

Are your dates flexible? Find out the best times to travel from Denver to Boston based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Denver to Boston

  • Are there on-site hotels at Boston Airport?

    There are two hotels located on the airport property to choose from: either the Hilton Boston Logan Airport or the Hyatt Regency Harborside. The former is connected via bridge to the airport terminals or complimentary shuttles if you are traveling with lots of baggage. The latter has premier service, fine dining, and incredible views of the Boston skyline. Both hotels make it easy to get into the center for a quick trip with complimentary shuttles to the water taxi and subway station.

  • What are my options to get to the Denver Airport by public transportation?

    You can either take the A line commuter train that leaves from the Denver Union Station in downtown Denver, or the airport bus line called SkyLine to Jeppesen Terminal. Both the train and bus run most hours of the day. Although they are not public transportation per se, there are also shared rides and shuttle buses that can be arranged online.

  • What are some good tips for getting through Denver Airport quickly?

    A good tip for getting through security quickly at the Denver Airport if there are long lines is to proceed to the security checkpoint that is located in Concourse A just after the pedestrian bridge that goes to the Westin Hotel as it is slightly hidden and is less busy than other security lines. Another tip to get through Denver Airport as quickly as possible is to check out VeriFLY where you can reserve a 15-minute TSA screening window on the day of your flight in advance. This will expedite your time in the security lane. You will be required to fill out a health questionnaire as you create an account on the VeriFLY app.

  • What are my options to get to downtown Boston from the airport via public transportation?

    The airport is well connected to the South Station in downtown Boston by the Silver Line and better yet it’s free. There is a free shuttle bus that will take you from the airport terminal to catch the Silver Line.

  • Are there any on-site hotels at Denver International Airport (DEN)?

    When you have an early flight out of Denver International Airport (DEN), you will likely find it convenient to stay at a hotel the night before. The Westin Denver International Airport is located just a short distance from the main terminal and has over 500 rooms available for travelers.

  • What services does Boston Logan International Airport (BOS) offer for students with limited mobility?

    If you or someone that you are traveling with will need additional assistance once you have landed at Boston Logan International Airport (BOS), airport employees can help you. The airport is also equipped with ramps, elevators, and wheelchair-accessible restrooms.

  • What dining options are available at Denver International Airport (DEN)?

    Denver International Airport (DEN) has a few different dining options for those that find themselves hungry before boarding their flight. For example, there is the Boulder Beer Tap House in the Jeppesen Terminal, the Cantina Grill near the B Gates, and the Que Bueno! Mexican Grille is also near the B Gates.

  • Is it possible for me to rent a car from Boston Logan International Airport (BOS)?

    Boston Logan International Airport (BOS) has a car rental center that contains the offices of several major rental companies, making it easy to rent a car once your flight has landed. Some of the companies that you will find here include SIXT, Payless, and Thrifty.

  • What parking options are available at Denver International Airport (DEN)?

    If you will be driving to Denver International Airport (DEN), there are a few different parking options that you can choose from. There are several Economy Parking Lots for those that are traveling on a budget, as well as a main parking lot near each terminal. Most parking lots offer both short and long-term rates.

  • Does Boston Logan International Airport (BOS) have any animal relief areas?

    Those that will be traveling with pets will want to take note of the animal relief areas that are at Boston Logan International Airport (BOS). You will find an indoor and outdoor pet relief area in each terminal of the airport. They are equipped with disposal waste bags and trash cans. 

  • What is the cheapest flight from Denver to Boston?

    In the last 5 days, the lowest price for a flight from Denver to Boston was $125 for a one-way ticket and $222 for a round-trip.

  • Do I need a passport to fly between Denver and Boston?

    A passport is not required to fly from Denver to Boston.

  • Which airports will I be using when flying from Denver to Boston?

    Denver and Boston are both served by 1 main airport. You will leave Denver from Denver Intl and will be arriving at Boston Logan Intl.

  • Which airlines offer Wi-Fi service onboard planes from Denver to Boston?

    JetBlue, Delta, and American Airlines offer inflight Wi-Fi service on the Denver to Boston flight route.

  • Which aircraft models fly most regularly from Denver to Boston?

    The Airbus A321neo is the aircraft model that flies most regularly on the Denver to Boston flight route.

  • Which airline alliances offer flights from Denver to Boston?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Denver and Boston, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Denver to Boston?

    There are nonstop flights from Denver to Boston on a daily basis.

  • Which is the best airline for flights from Denver to Boston, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Denver to Boston are Southwest and Delta. With an average price for the route of $401 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $347 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Denver to Boston?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Boston.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Boston?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Boston?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Boston with an airline and back to Denver with another airline. Booking your flights between Denver and BOS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Boston?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Boston from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Denver to Boston

  • Looking for a cheap flight? 25% of our users found flights on this route for $200 or less one-way and $303 or less round-trip.
  • JetBlue and United Airlines both offer nonstop flights from Denver Intl (DEN) to Boston Logan Intl (BOS). Alternatively, Sun Country Air and Frontier also have great flight deals from Denver to Boston, but with one layover either in Miami (MIA) or Minneapolis St Paul (MSP).
  • Denver International Airport is just a short drive away from downtown Denver, 25 miles away. The airport is very well-connected to downtown by public transportation, and you can also opt for a quick taxi instead.
  • Once you’re through security you will find everything you need to keep you comfortable while you wait for your flight from free charging stations for all your devices, free Wi-Fi to stay connected, two lounges (United Club East and Delta Sky Club), nursing rooms, prayer halls, and an on-site pet resort.
  • Boston Logan International Airport, also known as Massport, has four passenger terminals, A, B, C, and E, and are separated from each other. Each terminal has free ground transportation, Wi-Fi, and food and concession stands.
  • While waiting for your flight to board at Denver International Airport (DEN), make sure to keep your eyes open for the DEN CATS. This group is made up of over 80 dogs and one cat, as well as volunteers that walk them throughout the airport in order to say hi to travelers.
  • If your little ones need to unwind after being cooped up in a plane for several hours, make sure to bring them to the Kidport in Terminal B of Boston Logan International Airport (BOS). This play area is filled with a variety of toys and activities, allowing them to have fun for a few minutes before you head to your final destination.
  • To unwind before you board your flight at Denver International Airport (DEN), you may want to head to A Massage, which can be found near the B Gates on the Mezzanine Level. This spa offers a selection of treatments, including back, foot, and neck massages.

Prefer to fly direct from Denver to Boston?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Denver Intl to Boston Logan Intl.
Find which airlines fly direct from Denver Intl Airport to Boston Logan Intl Airport, which days they fly and book direct flights.

Direct departures

Denver Intl to Boston Logan Intl

Monday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

Tuesday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

Wednesday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

Thursday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

Friday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

Saturday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

Sunday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

See more direct flights

Direct returns

Boston Logan Intl to Denver Intl

Monday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

Tuesday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

Wednesday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

Thursday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

Friday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

Saturday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

Sunday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

See more direct flights

Everything you need to know for your flight from Denver to Boston

Other airlines flying from Denver to Boston

Flights from the other most popular airlines that fly from Denver to Boston according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.