Flight Routes from Billings to Denver

Trip type

Our cheapest offers for flights from Billings to Denver

Here you can compare cheap flights from Billings (BIL) to Denver (DEN) 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 Denver. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Best option
Billings
Denver
Outbound
08/20/26
direct
UA4643
01h 56min
Return
08/25/26
direct
UA5257
01h 41min
United Airlines
$323
Billings
Denver
Outbound
08/20/26
direct
UA5829
01h 53min
Return
08/25/26
direct
UA5257
01h 41min
United Airlines ?
$328
Billings
Denver
Outbound
10/01/26
direct
UA4643
01h 56min
Return
10/11/26
direct
UA1417
01h 35min
United Airlines
$338
Billings
Denver
Outbound
10/01/26
direct
UA4643
01h 56min
Return
10/11/26
direct
UA1417
01h 35min
United Airlines ?
$343
Billings
Denver
Outbound
06/25/26
direct
UA4758
01h 52min
Return
06/30/26
direct
UA1417
01h 37min
United Airlines
$400
Billings
Denver
Outbound
06/25/26
direct
UA4758
01h 52min
Return
06/30/26
direct
UA1417
01h 37min
United Airlines ?
$408
Billings
Denver
Outbound
08/20/26
1 Stopover (PDX)
AS2180, AS0466
27h 25min
Return
08/25/26
1 Stopover (PDX)
AS0684, AS2161
26h 57min
Alaska Airlines
$503
Billings
Denver
Outbound
08/20/26
1 Stopover (PDX)
AS2180, AS0466
27h 25min
Return
08/25/26
1 Stopover (PDX)
AS0684, AS2161
26h 57min
Alaska Airlines
$512
Billings
Denver
Outbound
10/01/26
1 Stopover (PDX)
AS2181, AS0466
06h 04min
Return
10/11/26
1 Stopover (SEA)
AS0317, AS2457
16h 45min
Alaska Airlines
$518
Billings
Denver
Outbound
10/01/26
1 Stopover (PDX)
AS2181, AS0466
06h 04min
Return
10/11/26
1 Stopover (SEA)
AS0317, AS2457
16h 45min
Alaska Airlines
$527
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Billings to Denver

Favorite airline: United Airlines
The favorite airline for flights from Billings to Denver is United Airlines.
United Airlines
50 %
Alaska Airlines
25 %
Delta
25 %
Direct flights are the cheapest connection
Compared to flights with a stopover, direct flights are $35.00 cheaper on this route.
non stop flight
1 stop
01h 53min
06h 17min
$302
$337
The favorite connection is non-stop
67 % of travelers decide to book a direct flight on this route.
Route
bookings
Direct flights
01h 53min, from $302
67 %
1 stopover Salt Lake City International Airport, UT
06h 17min, from $337
33 %

Important flight information

Flight information: Billings - Denver

Roundtrip from $322.48
Flight duration min. 01:31 / max. 01:56
Return flight duration min. 01:31/ max. 01:49
Distance 733 km
Flights per week 31
Departure airport Airport Billings, MT (BIL)
Arrival airport Airport Denver International Airport, CO (DEN)
Destination country Flights to United States
Alternative flights to Denver
Flight destinations with a similar price