Flights from Denver to Boston

Our cheapest offers for flights from Denver to Boston

Here you can compare cheap flights from Denver (DEN) to Boston (BOS) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Boston. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Denver
Boston
Pay attention to transfer at connecting flight
Outbound
11/09/25
1 Stopover (CLE)
F91918, F94834
18h 15min
Return
12/07/25
1 Stopover (CLE)
F94833, F94637
12h 28min
Frontier Airlines
$253
Best option
Denver
Boston
Outbound
11/09/25
direct
UA1587
03h 54min
Return
12/07/25
direct
UA0647
04h 53min
United Airlines ?
$254
Denver
Boston
Outbound
11/09/25
direct
UA1587
03h 54min
Return
12/07/25
1 Stopover (ATL)
F93085, F93293
29h 17min
United Airlines ?
$260
Denver
Boston
Outbound
09/25/25
1 Stopover (TPA)
F91114, F91216
30h 12min
Return
10/05/25
1 Stopover (JFK)
B60917, B61497
07h 17min
Frontier Airlines ?
$280
Denver
Boston
Outbound
09/25/25
1 Stopover (TPA)
F91114, F91216
30h 12min
Return
10/05/25
1 Stopover (RDU)
F93057, F92225
14h 01min
Frontier Airlines ?
$308
Denver
Boston
Outbound
09/25/25
1 Stopover (TPA)
F91114, F91216
30h 12min
Return
10/05/25
1 Stopover (RDU)
F93057, F92225
14h 01min
Frontier Airlines
$311
Denver
Boston
Outbound
09/25/25
1 Stopover (ATL)
F93294, F93512
06h 59min
Return
10/05/25
1 Stopover (RDU)
F93057, F92225
14h 01min
Frontier Airlines
$321
Denver
Boston
Outbound
09/25/25
1 Stopover (ATL)
F93294, F93512
06h 59min
Return
10/05/25
1 Stopover (JFK)
B60917, B61497
07h 17min
Frontier Airlines ?
$329
Denver
Boston
Outbound
11/09/25
1 Stopover (SEA)
AS0615, AS0536
09h 27min
Return
12/07/25
direct
B60993
04h 44min
Alaska Airlines ?
$332
Denver
Boston
Outbound
11/09/25
1 Stopover (MSP)
SY0658, SY0251
14h 00min
Return
12/07/25
1 Stopover (MCO)
F93347, F93311
13h 58min
Sun Country Airlines
$338
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Denver to Boston

Favorite airline: e.g. Sun Country Airlines, United Airlines
72 % of bookings on this flight route are made with Sun Country Airlines, United Airlines and Frontier Airlines.
Sun Country Airlines
29 %
United Airlines
29 %
Frontier Airlines
14 %
Direct flights are more expensive
Compared to direct flights, flights with a stopover on this route are on average 27 % cheaper.
non stop flight
1 stop
04h 01min
14h 29min
$ 530
$ 417
Favourite connection: via Minneapolis
The most popular route is via Minneapolis and is booked by 57 % of all travelers.
Route
bookings
1 stopover Minneapolis - St. Paul International Airport, MN
14h 29min, from $ 417
57 %
1 stopover Orlando International Airport, FL
30h 35min, from $ 437
29 %
1 stopover Detroit Metropolitan Wayne County Airport, MI
06h 05min, from $ 530
14 %

Important flight information

Flight information: Denver - Boston

Roundtrip from $ 253,00
Flight duration min. 03:43 / max. 09:05
Return flight duration min. 04:42/ max. 12:10
Distance 2819 km
Flights per week 77
Departure airport Airport Denver International Airport, CO (DEN)
Arrival airport Airport Boston Logan International Airport, MA (BOS)
Destination country Flights to United States
Alternative routes to United States
Alternative flights to Boston
Flight destinations with a similar price
Flight destinations with a similar price