According to PlainFlights' airport traffic ranking (BTS On-Time Performance total flights), Billings, MT (BIL) ranks #146 of 382 tracked US airports by total flights (most flights = #1). Billings, MT posts above-median on-time performance among the 382 tracked U.S. airports, as a mid-size U.S. airport.
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BIL on-time rate vs. the national average
Ahead of the U.S. average across all 382 tracked airports.
Delay Cause Breakdown
Top delay cause: Carrier.
Total delay minutes: 321,012.
Late Aircraft27.1% (87,043 min)
Carrier39.2% (125,698 min)
NAS (National Aviation System)22.5% (72,282 min)
Weather11.1% (35,756 min)
Security0.1% (233 min)
BIL - seasonal on-time pattern
Best: September (95.7%) · worst: December (92.4%)
BIL - on-time rate by year
2020–2025, year-over-year trend.
BIL - taxi-out and taxi-in (monthly)
Average taxi-out 17.9 min · taxi-in 4.4 min over the last 24 reported months (U.S. airport mean taxi-out ≈ 16.4 min).
BIL's average taxi-out (17.9 min) sits near the recent U.S. airport mean (~16.4 min). Month-to-month, it swings from 14.9 min (September 2024) to 27.6 min (February 2025).
Two PlainFlights-derived comparison paths for Billings, MT, both outside Montana 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 Billings, MT is the delay mix: Carrier owns 39.2% of 321,012 delay minutes across 51,010 BTS flights. The on-time headline is 85.7% (6.7 pts above the 79% national average), with 7,307 delayed and 370 cancelled (0.73%).
Delay minutes concentrate in Carrier (27.1% late-aircraft, 39.2% carrier, 22.5% NAS, 11.1% weather, 0.1% security). Mid-volume books still show a clear delay fingerprint rather than a weather-only story.
On the multi-year calendar, BIL is strongest in September (95.7% on-time) and weakest in December (92.4%), a 3.3-point swing. Volume peaks in August (~869 flights/month). The busiest connecting route is to DEN (Denver) at 81.6% on-time. Field definitions: on-time performance explained.
Billings, MT vs. the national on-time distribution
On-time rate among all 382 tracked U.S. airports
85.7%Top 27%higher than 73% of 382 airports
Billings, MT
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.
BIL'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 BIL before you book a connection. See top routes →
Travel in September rather than December if your dates are flexible. Seasonal patterns →
Gate-to-wheels taxi-out averages 17.9 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 Billings, MT's on-time rate?
Billings, MT (BIL) has a 85.7% on-time rate across 51,010 BTS-tracked flights (2020-2025), 6.7 pts above the 79% national flight-weighted average; that places it in roughly the above-median on-time performance.
How does BIL rank among U.S. airports by traffic volume?
Billings, MT ranks #146 of 382 tracked US airports by total BTS flights (most flights = #1), making it a mid-size U.S. airport.
What's the most common cause of delays at Billings, MT?
Carrier is the leading delay cause at BIL, accounting for 39.2% of delay minutes. The full breakdown: 27.1% late-aircraft, 39.2% carrier, 22.5% NAS/air-traffic-control, 11.1% weather, and 0.1% security.
When is the best time to fly through Billings, MT?
September is historically BIL's strongest month at 95.7% on-time, while December is the weakest at 92.4%, a 3.3-point swing across the BTS historical record.
Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights