How reliable is Flagstaff Pulliam Airport?
Flights from FLG departed within 15 minutes of schedule in 84% of 12,627 flights in official BTS history — and weather is calmest in May. Here’s the full picture before you book.
Reliability score
on-time, cancellations & delays
Weather favorability
year-round climate
Origin-airport operations
What the departure punctuality at FLG looks like
On-time departures
across 12,627 flights
Source: BTS Airport Operations · data through 2026-06-25. Role-specific BTS departure history; advisory context, not a guarantee for any flight.
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Weather by month
When the weather works for you at Flagstaff
A calm-weather score (0–100) for each month from decades of airport observations — how often conditions disrupt flying, not temperature. Higher is calmer.
Calmest month
Calmest flying weather of the year · 98/100 favorability
Roughest month
Most disruptive — low visibility & fog, snow · 76/100 favorability
The read on FLG
What the numbers say about flying through Flagstaff Pulliam Airport
Across official performance history, flights from Flagstaff left within 15 minutes of schedule about 84% of the time over 12,627 flights. That's a solid, better-than-average operational record. Pair it with a moderate cancellation rate of 1.8%. When a departure does run late, the typical delay is around 14 minutes.
On weather, Flagstaff is an unusually calm-weather airport year-round. May is the calmest stretch for flying, scoring 98 out of 100 for favorable conditions, while March is the most disruptive at 76, driven mainly by low visibility & fog and snow. The seasonal swing is real but manageable; favor the calmer months when your dates are flexible.
None of this guarantees your specific flight — it’s the backdrop. To turn it into a booking, score real flights to Flagstaff, read how we weigh it all in how the PlaneSane Score works, and brush up with how to pick a reliable flight and avoiding weather delays.
Common questions about FLG
- How reliable is Flagstaff Pulliam Airport (FLG)?
- Flights from Flagstaff left within 15 minutes of schedule roughly 84% of the time across 12,627 flights of official history — a solid, better-than-average operational record. The cancellation rate runs about 1.8%. It's advisory context, not a guarantee for any single flight.
- What is the best month to fly from FLG for good weather?
- May has the calmest flying weather at Flagstaff Pulliam Airport. March is the most disruptive, mainly from low visibility & fog and snow.
Planning a trip through Flagstaff?
Score real flights to and from FLG on reliability, weather, and connection safety — not just price.