How reliable is Grand Forks International Airport?
Flights from GFK departed within 15 minutes of schedule in 85% of 8,324 flights in official BTS history — and weather is calmest in Sep. 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 GFK looks like
On-time departures
across 8,324 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 Forks
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 · 93/100 favorability
Roughest month
Most disruptive — low visibility & fog, snow · 71/100 favorability
The read on GFK
What the numbers say about flying through Grand Forks International Airport
Across official performance history, flights from Grand Forks left within 15 minutes of schedule about 85% of the time over 8,324 flights. That's one of the more dependable operational records you'll see. Pair it with a moderate cancellation rate of 1.8%. When a departure does run late, the typical delay is around 10 minutes.
On weather, Grand Forks is an unusually calm-weather airport year-round. September is the calmest stretch for flying, scoring 93 out of 100 for favorable conditions, while December is the most disruptive at 71, 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 Grand Forks, 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 GFK
- How reliable is Grand Forks International Airport (GFK)?
- Flights from Grand Forks left within 15 minutes of schedule roughly 85% of the time across 8,324 flights of official history — one of the more dependable operational records you'll see. 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 GFK for good weather?
- September has the calmest flying weather at Grand Forks International Airport. December is the most disruptive, mainly from low visibility & fog and snow.
Planning a trip through Grand Forks?
Score real flights to and from GFK on reliability, weather, and connection safety — not just price.