BLI (Bellingham) to DEN (Denver) flights arrive on time 60% of the time. The most reliable airline on this route is Southwest Airlines at 60%. The average delay is 49 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated May 2026.BLI → DEN
BLI (Bellingham) to DEN (Denver)
BLI → DEN on-time performance by month
24
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
This route is frequently delayed. About 60% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
Accurate?
Good to know
Departing from BLI
86% on timeTSA is currently ~10 min. Best time: 4 AM (about 5 min).
Arriving at DEN
78% on timeWhen flights into DEN are late, the average delay is 67 minutes. Build buffer if you have ground plans.
If connecting at DEN: TSA is ~13 min right now. Allow at least 60 minutes for a domestic connection.
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Data last updated May 2026. Source: Bureau of Transportation Statistics.