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
05/16/26
direct
UA0372
01h 52min
Return
05/29/26
direct
UA1417
01h 37min
United Airlines ?
$251
Billings
Denver
Outbound
07/26/26
direct
UA0372
01h 49min
Return
08/05/26
direct
UA1417
01h 37min
United Airlines ?
$259
Billings
Denver
Outbound
05/16/26
direct
UA4758
01h 55min
Return
05/29/26
direct
UA1417
01h 37min
United Airlines ?
$268
Billings
Denver
Outbound
07/26/26
direct
UA5829
01h 50min
Return
08/05/26
direct
UA1417
01h 37min
United Airlines ?
$392
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
07/26/26
2 Stopovers (SEA, PDX)
AS2247, AS0687, F91790
36h 56min
Return
08/05/26
2 Stopovers (MCO, LAS)
F92520, F91875, G40006
33h 11min
Alaska Airlines, Frontier Airlines ?
$701
Billings
Denver
Outbound
05/16/26
1 Stopover (PDX)
AS2181, AS0711
06h 03min
Return
05/29/26
1 Stopover (PDX)
AS0714, AS2161
06h 54min
Alaska Airlines ?
$702
Billings
Denver
Outbound
07/26/26
1 Stopover (SEA)
AS2247, AS0375
05h 47min
Return
08/05/26
1 Stopover (PDX)
AS1626, AS3046
07h 00min
Alaska Airlines ?
$899
Billings
Denver
Outbound
06/25/26
1 Stopover (SEA)
AS2247, AS0375
05h 59min
Return
06/30/26
1 Stopover (PDX)
AS1626, AS2368
07h 03min
Alaska Airlines ?
$982
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 $250.40
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