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
Best option
Denver
Boston
Outbound
04/03/26
direct
B60994
03h 53min
Return
04/16/26
direct
B60993
04h 40min
JetBlue Airways ?
$253
found 2 days ago
Denver
Boston
Please note: transfer for connecting flight
Outbound
04/03/26
3 Stopovers (CVN, DFW, MCO)
KG5418, KG5407, NK1162, NK0272
28h 14min
Return
04/16/26
1 Stopover (MSP)
SY0252, SY0655
08h 10min
Key Lime Air, Spirit Airlines
$467
found 2 days ago
Denver
Boston
Outbound
02/13/26
direct
B60994
03h 53min
Return
02/26/26
direct
B60993
04h 40min
JetBlue Airways ?
$257
Denver
Boston
Outbound
02/13/26
direct
B60994
03h 53min
Return
02/26/26
direct
B60993
04h 40min
JetBlue Airways ?
$266
Denver
Boston
Outbound
02/13/26
direct
UA0597
03h 54min
Return
02/26/26
direct
UA0414
04h 58min
United Airlines ?
$375
Denver
Boston
Outbound
02/13/26
1 Stopover (SEA)
AS0785, AS0536
09h 26min
Return
02/26/26
1 Stopover (SEA)
AS0537, AS0602
11h 19min
Alaska Airlines
$416
Denver
Boston
Outbound
02/13/26
1 Stopover (CLT)
AA2511, AA2476
07h 22min
Return
02/26/26
2 Stopovers (LGA, DFW)
AA4470, AA2792, AA0662
12h 37min
American Airlines ?
$422
Denver
Boston
Outbound
02/13/26
1 Stopover (PHL)
AA2672, AA0877
05h 26min
Return
02/26/26
1 Stopover (ORD)
AA1283, AA1387
10h 25min
American Airlines ?
$492
Denver
Boston
Outbound
04/03/26
1 Stopover (ATL)
F93294, F93086
22h 05min
Return
04/16/26
1 Stopover (MSP)
SY0252, SY0655
08h 10min
Frontier Airlines ?
$506
found 2 days ago
Denver
Boston
Outbound
04/03/26
1 Stopover (PDX)
AS0789, AS0038
09h 14min
Return
04/16/26
1 Stopover (CLT)
AA1907, AA3156
08h 53min
Alaska Airlines ?
$682
found 2 days ago
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