According to PlainFlights' airport traffic ranking (BTS On-Time Performance total flights), Mammoth Lakes, CA (MMH) ranks #373 of 382 tracked US airports by total flights (most flights = #1). Mammoth Lakes, CA posts bottom-quartile on-time performance among the 382 tracked U.S. airports, as a smaller regional airport.
Compare MMH to another hub, filter routes, or browse airline stats without leaving this profile.
MMH on-time rate vs. the national average
Ahead of the U.S. average across all 382 tracked airports.
Volume vs. on-time rate
Where Mammoth Lakes, CA sits on volume vs. on-time rate
Among the 382 U.S. airports in the BTS corpus, Mammoth Lakes, CA handles more flight
volume than 2% of them, and has a higher on-time rate than
20% of them, placing it in the quadrant for quiet and delay-prone.
Flight volume and on-time rate are independent figures: a busy airport can still run
reliably, and a quiet one can still run late.
Mammoth Lakes, CA vs. a 29-airport national peer sample, volume percentile vs. on-time-rate percentile.
Total flights (2020-2025): 540 ·
On-time rate: 80.7%
Delay Cause Breakdown
Top delay cause: Carrier.
Total delay minutes4,673 min
Carrier1,420 min · 30%
Late Aircraft1,379 min · 30%
Weather1,207 min · 26%
NAS (National Aviation System)667 min · 14%
Security0 min · 0%
Source: U.S. DOT Bureau of Transportation Statistics, On-Time Performance
Cancellation & Diversion Analysis
Flight disruption statistics for Mammoth Lakes, CA.
Cancellation Rate
13.15%
71 of 540 flights
Diversion Rate
0.00%
0 of 540 flights
Delay Rate
19.3%
104 of 540 flights
Nationwide peers by on-time rate & flight volume
Two PlainFlights-derived comparison paths for Mammoth Lakes, CA, both outside California so the neighborhoods are not same-state geography. Axes stay disjoint: volume peers exclude the on-time peer set. Same-state compare stays below.
The standout signal at Mammoth Lakes, CA is traffic scale: 540 BTS flights (2020–2020) place it #373 of 382 by book size. That quiet-book footprint sits beside a 80.7% on-time rate (1.7 pts above the 79% national flight-weighted average), 104 delayed departures, and 71 cancellations (13.15% of the book).
Delay minutes concentrate in Carrier (29.5% late-aircraft, 30.4% carrier, 14.3% NAS, 25.8% weather, 0.0% security). As a quieter airport, a single late inbound can swing the month more than at a mega-hub.
On the multi-year calendar, MMH is strongest in March (92.8% on-time) and weakest in February (83.3%), a 9.5-point swing. Volume peaks in January (~186 flights/month). Field definitions: on-time performance explained.
Mammoth Lakes, CA vs. the national on-time distribution
On-time rate among all 382 tracked U.S. airports
80.7%Top 80%higher than 20% of 382 airports
Mammoth Lakes, CA
60%95%
U.S. airports by on-time rate, bucketed by value
Each bar is a band; taller bars hold more airports. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2020).
Statistics reflect cumulative performance across all available reporting periods. On-time rates exclude cancelled and diverted flights.
MMH's on-time book sits in the slower half of the BTS set; check the delay mix and the worst month before treating the headline as typical.
Compare MMH against airports with a similar on-time rate. Compare airports →
Travel in March rather than February if your dates are flexible. Seasonal patterns →
Gate-to-wheels taxi-out averages 15.9 min here; check the monthly series before a tight connection. Taxi times →
On-time rate reflects the BTS historical average across all reporting carriers at this airport, not any single flight or airline.
Frequently Asked Questions
What is Mammoth Lakes, CA's on-time rate?
Mammoth Lakes, CA (MMH) has a 80.7% on-time rate across 540 BTS-tracked flights (2020-2020), 1.7 pts above the 79% national flight-weighted average; that places it in roughly the bottom-quartile on-time performance.
How does MMH rank among U.S. airports by traffic volume?
Mammoth Lakes, CA ranks #373 of 382 tracked US airports by total BTS flights (most flights = #1), making it a smaller regional airport.
What's the most common cause of delays at Mammoth Lakes, CA?
Carrier is the leading delay cause at MMH, accounting for 30.4% of delay minutes. The full breakdown: 29.5% late-aircraft, 30.4% carrier, 14.3% NAS/air-traffic-control, 25.8% weather, and 0.0% security.
When is the best time to fly through Mammoth Lakes, CA?
March is historically MMH's strongest month at 92.8% on-time, while February is the weakest at 83.3%, a 9.5-point swing across the BTS historical record.