How reliable is Mammoth Yosemite Airport?
Flights from MMH departed within 15 minutes of schedule in 72% of 270 flights in official BTS history. Here’s the full picture before you book.
Reliability score
on-time, cancellations & delays
Origin-airport operations
What the departure punctuality at MMH looks like
On-time departures
across 270 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
Weather history isn’t available for MMH yet
PlaneSane shows month-by-month airport weather once enough historical METAR/IEM observations are loaded for the airport. This does not mean the airport has no weather data forever; it means the current climatology table has no monthly coverage for Mammoth Yosemite Airport.
The read on MMH
What the numbers say about flying through Mammoth Yosemite Airport
Across official performance history, flights from Mammoth Lakes left within 15 minutes of schedule about 72% of the time over 270 flights. That's a middling record — neither a strength nor a red flag on its own. Pair it with an elevated cancellation rate of 26.3% — worth weighing alongside the on-time figure. When a departure does run late, the typical delay is around 24 minutes.
None of this guarantees your specific flight — it’s the backdrop. To turn it into a booking, score real flights to Mammoth Lakes, 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 MMH
- How reliable is Mammoth Yosemite Airport (MMH)?
- Flights from Mammoth Lakes left within 15 minutes of schedule roughly 72% of the time across 270 flights of official history — a middling record — neither a strength nor a red flag on its own. The cancellation rate runs about 26.3%. It's advisory context, not a guarantee for any single flight.
Planning a trip through Mammoth Lakes?
Score real flights to and from MMH on reliability, weather, and connection safety — not just price.