BIL (Billings) to DEN (Denver) flights arrive on time 81% of the time. The most reliable airline on this route is SkyWest Airlines at 82%. The average delay is 78 minutes. Delays on this route are most often caused by air traffic and busy airspace.
Source: Bureau of Transportation Statistics. Updated August 2026.BIL → DEN
BIL (Billings) to DEN (Denver)
BIL → DEN on-time performance by month
24
25
26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
This route is on time most of the time. About 81% of flights arrive on schedule.
Delays on this route are most often caused by air traffic and busy airspace.
Accurate?
Airlines are roughly equal on this route — SkyWest Airlines leads slightly at 82% vs United Airlines at 81%.
Airline Comparison
SkyWest Airlines leads at 82% on time; United Airlines trails at 81%.
Accurate?
Good to know
Departing from BIL
83% on timeExpect ~19 min sitting on the taxiway after your gate pushes back. BIL has long runway queues.
TSA is currently ~23 min. Best time: 4 AM (about 5 min).
Arriving at DEN
79% on timeWhen flights into DEN are late, the average delay is 69 minutes. Build buffer if you have ground plans.
If connecting at DEN: TSA is ~19 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what SkyWest Airlines owes you — refund rights, action plan, complaint email. Free.
Flying out of BIL? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
Know someone flying soon?
Send them the link — delay data, TSA waits, weather, all free.
Data last updated August 2026. Source: Bureau of Transportation Statistics.