$117 Find Cheap Flights from Boston to Denver - Compare and Save

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

• Earliest: departs at 5:00 am and lands at 9:44 am
• Latest: departs at 9:06 pm and lands at 1:50 am.

The flight takes about 4h 44m.

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

• Economy Class
• Premium Economy Class
• First Class

A nonstop flight from Boston to Denver takes 4h 44m, 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.

Round-trip flights from Boston to Denver range from $278 to $468, with an average of $365 over the past 12 months. Anything below $278 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 20% above the $365 route average. Book 14 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $226 round-trip via Cleveland Hopkins Intl (CLE), compared to $367 for nonstop.

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

• Delta: 88% on time
• United Airlines: 87% on time
• JetBlue: 77% on time

Overall, flights on this route are punctual 81% of the time on average.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $35–$100 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 Airbus A220-300 variants.

Morning is the busiest departure period on Boston to Denver flights, with 70% of flights leaving in that window. Afternoon departures account for 20%, evening flights for 10%, and night flights for 0%.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $211 to $1,240. That means the highest observed fare was about 6x higher than the lowest one.

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

• JetBlue
• Delta

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

One-way fares from Boston to Denver are currently lower than usual. Average one-way flight prices are about $119, which is 43% below the typical average for this route.

Denver Intl Airport (DEN) hosts 5 major car rental companies, with daily rates starting from around $16 for economy cars. Top options include:

• Routes Car & Truck Rentals
• Ace
• NU Car
• Europcar
• Hertz

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

Night flights have the fewest delays on this route, while evening departures tend to have the most.

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 Boston to Denver route, 19% of flights were delayed in the past 3 months, with delays averaging 2h 28m.

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

• Atlanta Hartsfield-Jackson (ATL) - 19% of one-stop connections
• Dallas/Fort Worth (DFW) - 16% of one-stop connections
• Philadelphia (PHL) - 16% of one-stop connections
• Charlotte Douglas (CLT) - 8% of one-stop connections

Yes. Flexible dates can save you up to 26% on flights from Boston to Denver. Wednesday is the cheapest departure day at $318 round-trip on average, while Sunday is the most expensive at $429, a difference of $111.

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 Boston and Denver. The airlines offering nonstop flights on this route include:

• United Airlines
• Southwest
• JetBlue
• Delta

Flying via Baltimore/Washington (BWI) gives the shortest average 1-stop total travel time at 6h 28m, compared with 6h 39m via Lambert-St Louis (STL) and 6h 41m via Chicago O'Hare Intl (ORD).

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

Some of the most popular sights in Denver are Colorado Convention Center, Coors Field and Ball Arena. These are among the most viewed places in Denver on KAYAK.

Among airlines operating Boston to Denver 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 always check the fare details before booking.

A quick and economic way to reach downtown Denver is with the A Line Commuter Train, which departs from the airport’s station. To reach Denver Union Station, it will take about 40 min and a day pass will cost approximately $11. The train departs every 15 min from the station and runs from 3:00 am to 1:00 am. If you arrive outside these times, you can also opt for a taxi, which will cost approximately $56 to get to Denver.

To find accommodation close to Denver airport, look no further than the Westin Denver International Airport Hotel. This modern hotel is just a few steps from the terminal building and offers a huge business center, various event rooms, and swimming pools. Multiple restaurants are also dotted around, for a well-rounded hotel experience just a few minutes from the airport.

Boston Logan airport has an economy-friendly parking lot just a few minutes from the terminal building. This way, you can drive your own car to the airport and have it await your return without accumulating astronomical fees. The first day costs approximately $52 and each subsequent day is approximately $26. To reach the airport, you can use the courtesy shuttle bus operating between the lot and the terminals.

Denver airport lies conveniently close to the Rocky Mountain Wildlife Refuge and only 16 mi separate you from an encounter with the wild animals. You can reach it by public transport with the A Line Train to Central Park Station, then change for the 62 bus, which stops at Prairie Parkway.

There’s only one terminal at DEN, the Jeppesen Terminal, and three concourses: A, B, and C. Jeppesen Terminal serves check-in facilities, security checkpoints, customs, immigration and baggage claim. On the other hand, the concourses are used for departure. Transfer from the terminal to the three concourses is via the Automated Guideway Transit System. This service runs from the terminal through the concourses every 5-15min.

Several carriers operate multiple lounges at Denver International Airport (DEN), including American Airlines’ Admirals Club and Delta Airline’s Delta Sky Club. Members and holders of registered cards get priority access. Also, as an economy class traveler, you can access these lounges if you agree to pay for a day pass.

Suppose you want to retreat to a quiet space and thank your god for a safe journey from BOS to DEN – you’ll be happy to learn that BOS offers a dedicated prayer room. The room is situated in Jeppesen Terminal, Level 6 East. Services start at 4 am and close at midnight, daily. This religious sanctuary accommodates both the Islamic Masjid and an interfaith chapel.

If you’ve just landed at DEN and want to recharge your wallet, you won’t have a shortage of options. The Public Service Credit Union runs ATMs in the Jeppesen Terminal and at A, B and C Gates.