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Airport · BTM · Butte, Montana

Butte, MT

According to PlainFlights' airport traffic ranking (BTS On-Time Performance total flights), Butte, MT (BTM) ranks #287 of 382 tracked US airports by total flights (most flights = #1). Butte, MT posts top-5% on-time performance among the 382 tracked U.S. airports, as a smaller regional airport.

Data updated 2026-06-13

91%
On-time
Top 2%
on-time, US airports
102 min
Delay when late
0.52%
Cancelled
#287 of 382
Corpus placement
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BTM on-time rate vs. the national average

Ahead of the U.S. average across all 382 tracked airports.

0%100%U.S. average79%91%

Delay Cause Breakdown

Top delay cause: Carrier. Total delay minutes: 35,622.

Late Aircraft 4.4% (1,552 min)
Carrier 65.1% (23,200 min)
NAS (National Aviation System) 5.0% (1,783 min)
Weather 25.2% (8,993 min)
Security 0.3% (94 min)

BTM - seasonal on-time pattern

Best: November (98.2%) · worst: January (94.8%)

94%95%96%97%98%99% JanFebMarAprMayJunJulAugSepOctNovDec 95.9%

BTM - on-time rate by year

2020–2025, year-over-year trend.

94%95%96%97%98%99% 202020212022202320242025 97.3% 95.1% ▼ -2.3%

BTM - taxi-out and taxi-in (monthly)

Average taxi-out 15.1 min · taxi-in 4.1 min over the last 24 reported months (U.S. airport mean taxi-out ≈ 16.4 min).

5 min10 min15 min20 min25 min30 min Jan 24Dec 25 12.6 min 24 min ▲ +90.5%

BTM's average taxi-out (15.1 min) sits near the recent U.S. airport mean (~16.4 min). Month-to-month, it swings from 9.0 min (August 2024) to 24.0 min (December 2025).

Cancellation & Diversion Analysis

Flight disruption statistics for Butte, MT.

Cancellation Rate

0.52%

42 of 8,024 flights

Diversion Rate

0.04%

3 of 8,024 flights

Delay Rate

9.0%

719 of 8,024 flights

Top Routes from BTM

Busiest routes to and from Butte, MT.

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Route Flights On-Time Distance
BTM (Butte) → SLC (Salt Lake City) 3,311 91.9% 358 mi
SLC (Salt Lake City) → BTM (Butte) 3,310 91.2% 358 mi

Nationwide peers by on-time rate & flight volume

Two PlainFlights-derived comparison paths for Butte, 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.

Similar on-time rate

Nearest out-of-state BTS on-time rate (this airport: 91%).

Guam, TT

Guam, TT

90.6% on-time 8,429 flights

Fort Leonard Wood, MO

Fort Leonard Wood, MO

90.5% on-time 1,262 flights

Gustavus, AK

Gustavus, AK

90.3% on-time 1,064 flights

Cedar City, UT

Cedar City, UT

92% on-time 7,071 flights

Similar flight volume

Nearest out-of-state total flights (this airport: 8,024).

Stillwater, OK

Stillwater, OK

8,044 flights 87.7% on-time

Plattsburgh, NY

Plattsburgh, NY

7,984 flights 81.1% on-time

Ponce, PR

Ponce, PR

8,079 flights 74.5% on-time

Meridian, MS

Meridian, MS

7,934 flights 84.1% on-time

Other Airports in Montana

Compare performance with other Montana airports.

BZN 82.3%

Bozeman, MT

Bozeman · 117,386 flights
MSO 83.9%

Missoula, MT

Missoula · 52,758 flights
BIL 85.7%

Billings, MT

Billings · 51,010 flights
FCA 84.4%

Kalispell, MT

Kalispell · 50,123 flights
GTF 88.3%

Great Falls, MT

Great Falls · 29,395 flights
HLN 89.2%

Helena, MT

Helena · 17,569 flights
WYS 87.9%

West Yellowstone, MT

West Yellowstone · 3,872 flights

BTM delay-share reading

The standout signal at Butte, MT is the delay mix: Carrier owns 65.1% of 35,622 delay minutes across 8,024 BTS flights. The on-time headline is 91% (12 pts above the 79% national average), with 719 delayed and 42 cancelled (0.52%).

Delay minutes concentrate in Carrier (4.4% late-aircraft, 65.1% carrier, 5.0% NAS, 25.2% weather, 0.3% security). As a quieter airport, a single late inbound can swing the month more than at a mega-hub.

On the multi-year calendar, BTM is strongest in November (98.2% on-time) and weakest in January (94.8%), a 3.4-point swing. Volume peaks in October (~116 flights/month). The busiest connecting route is to SLC (Salt Lake City) at 91.9% on-time. Field definitions: on-time performance explained.

Statewide aggregates for Montana: Montana flight data.

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.

Read our methodology - how this data is sourced, computed, and verified.

Using BTM's data

BTM'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 BTM before you book a connection. See top routes
  • Travel in November rather than January if your dates are flexible. Seasonal patterns
  • Gate-to-wheels taxi-out averages 15.1 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.

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

Source: U.S. Bureau of Transportation Statistics (BTS) Airline on-time performance and operational reliability · 2025

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. Airport figures are computed directly from BTS On-Time Performance data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.