£94 Find Cheap Flights from Denver to Boston – Compare and Save

These are the earliest and latest flight times available from Denver to Boston:

• Earliest: departs at 06:10 and lands at 10:08
• Latest: departs at 23:59 and lands at 03:57.

The flight takes about 3h 58m.

Three cabin classes are available on flights from Denver to Boston:

• Economy class
• Premium Economy Class
• First Class

A direct flight from Denver to Boston takes 3h 58m, covering 1,748 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Return flights from Denver to Boston range from £209 to £364, with an average of £277 over the past 12 months. Anything below £209 counts as a good deal.

Last-minute fares on this route (booked within 2 weeks of departure) run 27% above the route average of £277. Book 24 weeks before departure for the lowest fares.

On this route, stopover flights are cheaper than direct options on average. Stopover fares average £194 return via Orlando (MCO), compared with £282 for direct.

United Airlines is slightly above the route average for timely arrivals, while Delta has a lower on-time arrival rate. On-time arrival rates on Denver to Boston flights are:

• United Airlines: 81% on time
• Delta: 81% on time
• JetBlue: 72% on time

On average, flights on this route are punctual 75% of the time.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £26–£75 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

The Airbus A321neo family is used most often on this route, operated mainly by United Airlines and Delta. Other aircraft seen on the route include Boeing 737 MAX 8 variants.

Morning is the busiest departure period on Denver to Boston flights, with 40% leaving in that window. Afternoon departures account for 30%, Evening flights for 20%, and Night flights for 10%.

Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about £170 to £742. That means the highest observed fare was about 4x higher than the lowest one.

Two airlines offer in-flight Wi-Fi on Denver to Boston flights:

• JetBlue
• Delta

Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty programme, while others are paid add-ons priced by flight length.

One-way fares from Denver to Boston are currently lower than usual. Average one-way flight prices are about £101, which is 39% below the typical average for this route.

Boston Logan Intl Airport (BOS) hosts 5 major car hire companies, with daily rates starting from around £17 for economy cars. Top options include:
• Dollar
• Hertz
• Budget
• Thrifty
• Sixt

Flights from Denver to Boston usually depart from Denver Intl (DEN) and arrive at Boston Logan Intl (BOS).

Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Denver to Boston route, 25% of flights were delayed in the past 3 months, with delays averaging 2 hours 39 minutes.

One-stop flights from Denver to Boston most commonly connect through:

• Atlanta Hartsfield-Jackson (ATL) – 13% of one-stop connections
• Philadelphia (PHL) – 12% of one-stop connections
• Chicago O'Hare Intl (ORD) – 12% of one-stop connections
• Charlotte Douglas (CLT) – 8% of one-stop connections

Atlanta Hartsfield-Jackson (ATL) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 22% on the Denver to Boston route. Wednesday is the cheapest departure day at £253 return on average, while Monday is the most expensive at £324, a difference of £71. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

4 airlines operate flights between Denver and Boston. The airlines offering direct flights on this route include:

• United Airlines
• Southwest
• JetBlue
• Delta

Flying via Chicago Midway (MDW) gives the shortest average 1-stop total travel time of 5h 51m, compared to 6h 21m via Lambert-St Louis (STL) and 6h 26m via Washington, D.C. Dulles Intl (IAD).

Boston is 2 hours ahead of Denver (Eastern Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in Boston are Boston Common, Copley Square, and John B. Hynes Veterans Memorial Convention Center. These are among the most viewed places in Boston on KAYAK.

Among airlines operating Denver to Boston flights:

• United Airlines: offers extra legroom; offers free seat selection
• JetBlue: offers extra legroom; offers free seat selection
• Southwest: offers free seat selection
• Delta: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• United Airlines: a cabin bag and a checked bag in Economy class
• JetBlue: a cabin bag and a checked bag in Economy class
• Southwest: a cabin bag and a checked bag in Economy class

Bag allowance can vary by ticket type, cabin class, route, and airline, so travellers should check the fare details before booking.

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.

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.

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.

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.