$105 Cheap Frontier Airlines flights Denver (DEN) to Boston (BOS)

View $105 flight on Tue, Jul 8, 2025Opens in a new window

$105 Cheap Frontier Airlines flights Denver (DEN) to Boston (BOS)

Prices were available within the past 7 days and start at $105 for one-way flights and $210 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Jun 26 - Thu, Jul 3
DEN
Denver
BOS
Boston
$210 Roundtrip, found 20 hours ago
$210
Roundtrip
found 20 hours ago
Select Frontier Airlines flight, departing Thu, Jun 26 from Denver to Boston, returning Thu, Jul 3, priced at $210 found 20 hours ago
Flights from Denver (DEN) to Boston (BOS)
Origin airport
Denver Intl.
Destination airport
Logan Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, JetBlue Airways, United
Popular airline
Delta
Distance
2798 km
Average flight time
5 hours 59 mins