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746 km · Domestic

Great Falls (GTF) – Salt Lake City (SLC)

In July 2026, 184 flights operated between Great Falls and Salt Lake City (both directions), and 93.5% left on time, according to the US BTS.

Official · July 2026 according to the US BTS only airlines required to report on-time data to the US DOT

Flights per month

Only complete months are shown. A month appears once the source has published every day of it.

The most recent periods19 periods
PeriodFlights operated 2025Flights operated 2026Change vs last year
January168172▲ 2.4%
February1561560.0%
March176178▲ 1.1%
April176180▲ 2.3%
May1861860.0%
June1801800.0%
July1841840.0%
August182––
September180––
October184–in progress
November166––
December178––
Year to date (Jan–Jul)1,2261,236▲ 0.8%

On-time departures by month

Departures within 15 minutes of schedule.

The most recent periods19 periods
PeriodOn-time departures 2025On-time departures 2026Change vs last year
January94.0%94.8%▲ 0.9%
February94.2%90.4%▼ 4.0%
March98.3%85.4%▼ 13.1%
April93.2%92.8%▼ 0.4%
May93.0%91.9%▼ 1.2%
June96.1%98.3%▲ 2.3%
July93.5%93.5%0.0%
August91.8%––
September94.4%––
October98.4%–in progress
November92.8%––
December89.9%––
Year-to-date average (Jan–Jul)94.6%92.4%▼ 2.3%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January00–
February00–
March06–
April00–
May00–
June00–
July00–
August0––
September0––
October0–in progress
November8––
December2––
Year to date (Jan–Jul)06

By direction

GTF → SLC

Scheduled flights
1,907
Flights operated
1,899
Cancelled
8 · 0.4%
On-time departures
93.8%

SLC → GTF

Scheduled flights
1,907
Flights operated
1,899
Cancelled
8 · 0.4%
On-time departures
93.0%

GTF → SLC and SLC → GTF counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
SkyWest Airlines OO 3,814 100.0% 93.4% 16

Shares are of scheduled flights in the period shown. Codeshare flights are counted once, under the operating airline.

Flight timing & delays

Historical departures, grouped by the scheduled local time at the departure airport. These are recorded outcomes, not a forecast for your flight.

Times are local to the departure airport of each flight; both directions are combined.

US domestic sectors recorded by BTS

Source: the US BTS · Oct 12, 2024 → Jul 31, 2026

Lowest average delay09:00–10:00-3.3min · 320 recorded · 320 measured
Gap to highest-delay hour5.4min09:00 ↔ 16:00
Recorded flights3,814GTF–SLC

Departure hour

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · 98.2% · 657 recorded · 656 measured · Source: the US BTS 06:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · 97.2% · 320 recorded · 320 measured · Source: the US BTS 10:00 · 94.7% · 328 recorded · 323 measured · Source: the US BTS 11:00 · 92.8% · 262 recorded · 262 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 66 recorded · 66 measured · Source: the US BTS 13:00 · 93.4% · 336 recorded · 331 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 189 recorded · 188 measured · Source: the US BTS 16:00 · 86.9% · 406 recorded · 405 measured · Source: the US BTS 17:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 18:00 · 89.2% · 593 recorded · 591 measured · Source: the US BTS 19:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 20:00 · 94.0% · 252 recorded · 251 measured · Source: the US BTS 21:00 · 95.3% · 404 recorded · 404 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · -3.1 min · 657 recorded · 656 measured · Source: the US BTS 06:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · -3.3 min · 320 recorded · 320 measured · Source: the US BTS 10:00 · 0.1 min · 328 recorded · 323 measured · Source: the US BTS 11:00 · -1.5 min · 262 recorded · 262 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 66 recorded · 66 measured · Source: the US BTS 13:00 · -1.6 min · 336 recorded · 331 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 189 recorded · 188 measured · Source: the US BTS 16:00 · 2.1 min · 406 recorded · 405 measured · Source: the US BTS 17:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 18:00 · 1.3 min · 593 recorded · 591 measured · Source: the US BTS 19:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 20:00 · -2.0 min · 252 recorded · 251 measured · Source: the US BTS 21:00 · -1.6 min · 404 recorded · 404 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · 657 · 657 recorded · 656 measured · Source: the US BTS 06:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 07:00 · 1 · 1 recorded · 1 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · 320 · 320 recorded · 320 measured · Source: the US BTS 10:00 · 328 · 328 recorded · 323 measured · Source: the US BTS 11:00 · 262 · 262 recorded · 262 measured · Source: the US BTS 12:00 · 66 · 66 recorded · 66 measured · Source: the US BTS 13:00 · 336 · 336 recorded · 331 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · 189 · 189 recorded · 188 measured · Source: the US BTS 16:00 · 406 · 406 recorded · 405 measured · Source: the US BTS 17:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 18:00 · 593 · 593 recorded · 591 measured · Source: the US BTS 19:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 20:00 · 252 · 252 recorded · 251 measured · Source: the US BTS 21:00 · 404 · 404 recorded · 404 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

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View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00No observations———
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:0098.2%-3.1 min656657
06:00No observations———
07:00Fewer than 200 measured departures—11
08:00No observations———
09:0097.2%-3.3 min320320
10:0094.7%0.1 min323328
11:0092.8%-1.5 min262262
12:00Fewer than 200 measured departures—6666
13:0093.4%-1.6 min331336
14:00No observations———
15:00Fewer than 200 measured departures—188189
16:0086.9%2.1 min405406
17:00No observations———
18:0089.2%1.3 min591593
19:00No observations———
20:0094.0%-2.0 min251252
21:0095.3%-1.6 min404404
22:00No observations———
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 90.5% · 560 recorded · 560 measured · Source: the US BTS Tuesday · 96.4% · 556 recorded · 556 measured · Source: the US BTS Wednesday · 95.3% · 552 recorded · 548 measured · Source: the US BTS Thursday · 93.2% · 548 recorded · 546 measured · Source: the US BTS Friday · 93.2% · 558 recorded · 556 measured · Source: the US BTS Saturday · 93.6% · 494 recorded · 487 measured · Source: the US BTS Sunday · 91.9% · 546 recorded · 545 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Monday · -0.3 min · 560 recorded · 560 measured · Source: the US BTS Tuesday · -4.2 min · 556 recorded · 556 measured · Source: the US BTS Wednesday · -1.5 min · 552 recorded · 548 measured · Source: the US BTS Thursday · 0.1 min · 548 recorded · 546 measured · Source: the US BTS Friday · -1.5 min · 558 recorded · 556 measured · Source: the US BTS Saturday · 0.7 min · 494 recorded · 487 measured · Source: the US BTS Sunday · -0.3 min · 546 recorded · 545 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 560 · 560 recorded · 560 measured · Source: the US BTS Tuesday · 556 · 556 recorded · 556 measured · Source: the US BTS Wednesday · 552 · 552 recorded · 548 measured · Source: the US BTS Thursday · 548 · 548 recorded · 546 measured · Source: the US BTS Friday · 558 · 558 recorded · 556 measured · Source: the US BTS Saturday · 494 · 494 recorded · 487 measured · Source: the US BTS Sunday · 546 · 546 recorded · 545 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday90.5%-0.3 min560560
Tuesday96.4%-4.2 min556556
Wednesday95.3%-1.5 min548552
Thursday93.2%0.1 min546548
Friday93.2%-1.5 min556558
Saturday93.6%0.7 min487494
Sunday91.9%-0.3 min545546

Month of year

Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Jan · 94.4% · 340 recorded · 340 measured · Source: the US BTS Feb · 92.3% · 312 recorded · 312 measured · Source: the US BTS Mar · 91.8% · 360 recorded · 354 measured · Source: the US BTS Apr · 93.0% · 356 recorded · 356 measured · Source: the US BTS May · 92.5% · 372 recorded · 372 measured · Source: the US BTS Jun · 97.2% · 360 recorded · 360 measured · Source: the US BTS Jul · 93.5% · 368 recorded · 368 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 182 recorded · 182 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 180 recorded · 180 measured · Source: the US BTS Oct · 96.9% · 288 recorded · 288 measured · Source: the US BTS Nov · 93.1% · 340 recorded · 332 measured · Source: the US BTS Dec · 90.7% · 356 recorded · 354 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Jan · -0.9 min · 340 recorded · 340 measured · Source: the US BTS Feb · -0.7 min · 312 recorded · 312 measured · Source: the US BTS Mar · -0.1 min · 360 recorded · 354 measured · Source: the US BTS Apr · -2.1 min · 356 recorded · 356 measured · Source: the US BTS May · -0.1 min · 372 recorded · 372 measured · Source: the US BTS Jun · -3.7 min · 360 recorded · 360 measured · Source: the US BTS Jul · -1.2 min · 368 recorded · 368 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 182 recorded · 182 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 180 recorded · 180 measured · Source: the US BTS Oct · -3.7 min · 288 recorded · 288 measured · Source: the US BTS Nov · -2.2 min · 340 recorded · 332 measured · Source: the US BTS Dec · 3.1 min · 356 recorded · 354 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 340 · 340 recorded · 340 measured · Source: the US BTS Feb · 312 · 312 recorded · 312 measured · Source: the US BTS Mar · 360 · 360 recorded · 354 measured · Source: the US BTS Apr · 356 · 356 recorded · 356 measured · Source: the US BTS May · 372 · 372 recorded · 372 measured · Source: the US BTS Jun · 360 · 360 recorded · 360 measured · Source: the US BTS Jul · 368 · 368 recorded · 368 measured · Source: the US BTS Aug · 182 · 182 recorded · 182 measured · Source: the US BTS Sep · 180 · 180 recorded · 180 measured · Source: the US BTS Oct · 288 · 288 recorded · 288 measured · Source: the US BTS Nov · 340 · 340 recorded · 332 measured · Source: the US BTS Dec · 356 · 356 recorded · 354 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan94.4%-0.9 min340340
Feb92.3%-0.7 min312312
Mar91.8%-0.1 min354360
Apr93.0%-2.1 min356356
May92.5%-0.1 min372372
Jun97.2%-3.7 min360360
Jul93.5%-1.2 min368368
AugFewer than 200 measured departures—182182
SepFewer than 200 measured departures—180180
Oct96.9%-3.7 min288288
Nov93.1%-2.2 min332340
Dec90.7%3.1 min354356

Delay and on-time rates need at least 200 measured departures per bucket. Smaller samples remain visible in the flight-count chart. An empty slot means no observations, not zero flights.

Recorded outcomes

  • On time 93.1% 3,549
  • Delayed >15 min 6.5% 249
  • Cancelled 0.4% 16
  • Missing departure time 0.0% 0

All recorded flights with a known scheduled local time, counted once. Missing actual times are shown separately.

On time means departing no more than 15 minutes after schedule. Cancelled flights and flights missing departure times are excluded from the on-time rate and average delay.

Flight numbers on this route

9
9 of 9
Flight numbersBy direction DeparturesOn time
OO3859 SLC → GTF 657 95.9%
OO3845 SLC → GTF 656 94.8%
OO3859 GTF → SLC 656 93.7%
OO3800 GTF → SLC 562 89.6%
OO3862 GTF → SLC 463 98.1%
OO3800 SLC → GTF 423 87.7%
OO3633 GTF → SLC 195 98.5%
OO3934 SLC → GTF 171 88.9%
OO3934 GTF → SLC 31 80.7%

Flight numbers are the codes sold on tickets. On shared flights one aircraft can carry several of them. Only numbers with at least 30 flights have a page.

Monthly figures
PeriodFlights operated Change vs last yearCancelled On-time departures
July 2026 184 +0.0% 0 93.5%
June 2026 180 +0.0% 0 98.3%
May 2026 186 +0.0% 0 91.9%
April 2026 180 +2.3% 0 92.8%
March 2026 178 +1.1% 6 85.4%
February 2026 156 +0.0% 0 90.4%
January 2026 172 +2.4% 0 94.8%
December 2025 178 +1.1% 2 89.9%
November 2025 166 +0.0% 8 92.8%
October 2025 184 +76.9% 0 98.4%
September 2025 180 0 94.4%
August 2025 182 0 91.8%
July 2025 184 0 93.5%
June 2025 180 0 96.1%
May 2025 186 0 93.0%
April 2025 176 0 93.2%
March 2025 176 0 98.3%
February 2025 156 0 94.2%
January 2025 168 0 94.0%
December 2024 176 0 91.5%
November 2024 166 0 93.4%
October 2024 104 0 94.2%

How to read this chart

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