According to PlainFlights' airport traffic ranking (BTS On-Time Performance total flights), Rock Springs, WY (RKS) ranks #310 of 382 tracked US airports by total flights (most flights = #1). Rock Springs, WY posts top-quartile on-time performance among the 382 tracked U.S. airports, as a smaller regional airport.
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RKS on-time rate vs. the national average
Ahead of the U.S. average across all 382 tracked airports.
Volume vs. on-time rate
Where Rock Springs, WY sits on volume vs. on-time rate
Among the 382 U.S. airports in the BTS corpus, Rock Springs, WY handles more flight
volume than 19% of them, and has a higher on-time rate than
80% of them, placing it in the quadrant for quiet and reliable.
Flight volume and on-time rate are independent figures: a busy airport can still run
reliably, and a quiet one can still run late.
Rock Springs, WY vs. a 29-airport national peer sample, volume percentile vs. on-time-rate percentile.
Total flights (2020-2025): 6,604 ·
On-time rate: 86.4%
Delay Cause Breakdown
Top delay cause: Carrier.
Total delay minutes65,853 min
Carrier42,705 min · 65%
Late Aircraft12,498 min · 19%
NAS (National Aviation System)6,744 min · 10%
Weather3,906 min · 6%
Security0 min · 0%
Source: U.S. DOT Bureau of Transportation Statistics, On-Time Performance
RKS - seasonal on-time pattern
Best: March (97.7%) · worst: July (92.7%)
RKS - on-time rate by year
2020–2025, year-over-year trend.
RKS - taxi-out and taxi-in (monthly)
Average taxi-out 20.5 min · taxi-in 3.8 min over the last 24 reported months (U.S. airport mean taxi-out ≈ 16.4 min).
RKS's average taxi-out (20.5 min) runs longer than the recent U.S. airport mean (~16.4 min). The heaviest month in this window is January 2024 at 32.3 min; the lightest is July 2024 at 13.8 min.
Cancellation & Diversion Analysis
Flight disruption statistics for Rock Springs, WY.
Two PlainFlights-derived comparison paths for Rock Springs, WY, both outside Wyoming 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 Rock Springs, WY is the delay mix: Carrier owns 64.8% of 65,853 delay minutes across 6,604 BTS flights. The on-time headline is 86.4% (7.4 pts above the 79% national average), with 899 delayed and 75 cancelled (1.14%).
Delay minutes concentrate in Carrier (19.0% late-aircraft, 64.8% carrier, 10.2% NAS, 5.9% 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, RKS is strongest in March (97.7% on-time) and weakest in July (92.7%), a 5.0-point swing. Volume peaks in July (~105 flights/month). The busiest connecting route is to DEN (Denver) at 83% on-time. Field definitions: on-time performance explained.
Rock Springs, WY vs. the national on-time distribution
On-time rate among all 382 tracked U.S. airports
86.4%Top 20%higher than 80% of 382 airports
Rock Springs, WY
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 (2020–2025).
Statistics reflect cumulative performance across all available reporting periods. On-time rates exclude cancelled and diverted flights.
RKS's on-time book is stronger than most peers; the remaining risk sits in the delay mix, not a weak headline rate.
Check the busiest route from RKS before you book a connection. See top routes →
Travel in March rather than July if your dates are flexible. Seasonal patterns →
Build extra connection buffer when taxi-out spikes. January 2024 averaged 32.3 min. 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 Rock Springs, WY's on-time rate?
Rock Springs, WY (RKS) has a 86.4% on-time rate across 6,604 BTS-tracked flights (2020-2025), 7.4 pts above the 79% national flight-weighted average; that places it in roughly the top-quartile on-time performance.
How does RKS rank among U.S. airports by traffic volume?
Rock Springs, WY ranks #310 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 Rock Springs, WY?
Carrier is the leading delay cause at RKS, accounting for 64.8% of delay minutes. The full breakdown: 19.0% late-aircraft, 64.8% carrier, 10.2% NAS/air-traffic-control, 5.9% weather, and 0.0% security.
When is the best time to fly through Rock Springs, WY?
March is historically RKS's strongest month at 97.7% on-time, while July is the weakest at 92.7%, a 5.0-point swing across the BTS historical record.