Billings (BIL) to Denver (DEN)
Flight time
≈ 1h 43m
Bearing
153° SE
Billings (BIL) to Denver (DEN) is 455 miles (733 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies BIL–DEN
Filed traffic dataIn May 2026, SkyWest Airlines operated the most departures, one of 2 carriers flying nonstop BIL–DEN; the Embraer E175 was the most common aircraft at 36% of departures; flights ran 86% full.
Departures
328
May 2026
Seats
33,865
both directions
Passengers
28,996
both directions
Load factor
85.6%
RPM ÷ ASM
Who flies BIL–DEN?
SkyWest Airlines operated the most nonstop BIL–DEN departures in May 2026 (204), one of 2 carriers on the route.
- OO
204 departures · 12,988 seats
Share of departures62.2%81.4%
Load
- UA
124 departures · 20,877 seats
Share of departures37.8%88.3%
Load
What plane flies BIL–DEN?
In May 2026, the Embraer E175 flew 36% of BIL–DEN departures — more than any other aircraft type.
- Embraer E175
119 departures · 82.5% load
36.3% - Boeing 737-800
54 departures · 88.8% load
16.5% - Bombardier CRJ-550
51 departures · 78.7% load
15.6% - Boeing 737 MAX 8
43 departures · 88.7% load
13.1% - Bombardier CRJ-200
22 departures · 72.4% load
6.7% - Boeing 737-900ER
21 departures · 86.5% load
6.4% - Embraer E170
12 departures · 90.0% load
3.7% - Boeing 737 MAX 9
4 departures · 82.5% load
1.2% - Airbus A320
2 departures · 99.3% load
0.6%
How has BIL–DEN traffic changed?
Nonstop BIL–DEN departures fell from 356 in June 2025 to 328 in May 2026.
Monthly nonstop BIL–DEN traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
356 departures · 29,590 passengers
86.0%
Load
July 2025
353 departures · 30,712 passengers
88.8%
Load
August 2025
359 departures · 30,868 passengers
87.4%
Load
September 2025
337 departures · 26,920 passengers
78.9%
Load
October 2025
314 departures · 27,435 passengers
78.8%
Load
November 2025
285 departures · 24,743 passengers
82.1%
Load
December 2025
252 departures · 24,099 passengers
83.8%
Load
January 2026
247 departures · 22,316 passengers
74.7%
Load
February 2026
220 departures · 20,497 passengers
77.2%
Load
March 2026
245 departures · 23,877 passengers
81.6%
Load
April 2026
256 departures · 23,960 passengers
84.4%
Load
May 2026
328 departures · 28,996 passengers
85.6%
Load
By direction
Each direction is filed separately — they rarely match.
DEN → BIL
86.4% full
165 departures · 14,662 passengers
BIL → DEN
84.9% full
163 departures · 14,334 passengers
Nonstop BIL–DEN traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Billings (BIL) from Denver (DEN)?
BIL to DEN is 455 miles (733 km / 396 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from BIL to DEN?
A nonstop covers the 455-mile great-circle distance in roughly 1h 43m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies BIL–DEN?
In May 2026, the Embraer E175 flew the largest share of departures (36.3%), followed by the Boeing 737-800 (16.5%).
What mileage do I earn flying BIL–DEN?
Distance-based programs credit off the 455-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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