How reliable is Mahlon Sweet Field?
Flights from EUG departed within 15 minutes of schedule in 85% of 54,125 flights in official BTS history — and weather is calmest in Jul. 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 EUG looks like
On-time departures
across 54,125 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 Eugene
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 · 99/100 favorability
Roughest month
Most disruptive — low visibility & fog, freezing conditions · 71/100 favorability
The read on EUG
What the numbers say about flying through Mahlon Sweet Field
Across official performance history, flights from Eugene left within 15 minutes of schedule about 85% of the time over 54,125 flights. That's one of the more dependable operational records you'll see. Pair it with a low cancellation rate of 1.1%, so flights here rarely vanish outright. When a departure does run late, the typical delay is around 9 minutes.
On weather, Eugene is an unusually calm-weather airport year-round. July is the calmest stretch for flying, scoring 99 out of 100 for favorable conditions, while November is the most disruptive at 71, driven mainly by low visibility & fog and freezing conditions. 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 Eugene, 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 EUG
- How reliable is Mahlon Sweet Field (EUG)?
- Flights from Eugene left within 15 minutes of schedule roughly 85% of the time across 54,125 flights of official history — one of the more dependable operational records you'll see. The cancellation rate runs about 1.1%. It's advisory context, not a guarantee for any single flight.
- What is the best month to fly from EUG for good weather?
- July has the calmest flying weather at Mahlon Sweet Field. November is the most disruptive, mainly from low visibility & fog and freezing conditions.
Planning a trip through Eugene?
Score real flights to and from EUG on reliability, weather, and connection safety — not just price.