How reliable is Grand Junction Regional Airport?
Flights from GJT departed within 15 minutes of schedule in 85% of 26,774 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 GJT looks like
On-time departures
across 26,774 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 Grand Junction
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 · 90/100 favorability
The read on GJT
What the numbers say about flying through Grand Junction Regional Airport
Across official performance history, flights from Grand Junction left within 15 minutes of schedule about 85% of the time over 26,774 flights. That's one of the more dependable operational records you'll see. Pair it with a moderate cancellation rate of 1.3%. When a departure does run late, the typical delay is around 11 minutes.
On weather, Grand Junction is an unusually calm-weather airport year-round. May is the calmest stretch for flying, scoring 98 out of 100 for favorable conditions, while January is the most disruptive at 90, driven mainly by low visibility & fog and snow. The year is relatively steady, so no single month stands out as one to avoid on weather alone.
None of this guarantees your specific flight — it’s the backdrop. To turn it into a booking, score real flights to Grand Junction, 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 GJT
- How reliable is Grand Junction Regional Airport (GJT)?
- Flights from Grand Junction left within 15 minutes of schedule roughly 85% of the time across 26,774 flights of official history — one of the more dependable operational records you'll see. The cancellation rate runs about 1.3%. It's advisory context, not a guarantee for any single flight.
- What is the best month to fly from GJT for good weather?
- May has the calmest flying weather at Grand Junction Regional Airport. January is the most disruptive, mainly from low visibility & fog and snow.
Planning a trip through Grand Junction?
Score real flights to and from GJT on reliability, weather, and connection safety — not just price.