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840 km · Domestic

Boise Air Terminal/Gowen Field (BOI) – San Francisco (SFO)

In July 2026, 302 flights operated between Boise Air Terminal/Gowen Field and San Francisco (both directions), and 56.3% 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
January257300▲ 16.7%
February223263▲ 17.9%
March248356▲ 43.5%
April258326▲ 26.4%
May274292▲ 6.6%
June242264▲ 9.1%
July238302▲ 26.9%
August231––
September226––
October261–in progress
November293––
December302––
Year to date (Jan–Jul)1,7402,103▲ 20.9%

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
January88.7%80.7%▼ 9.0%
February81.2%79.5%▼ 2.1%
March86.7%82.3%▼ 5.1%
April84.5%77.9%▼ 7.8%
May85.4%53.8%▼ 37.0%
June86.0%51.9%▼ 39.7%
July76.5%56.3%▼ 26.4%
August85.3%––
September85.4%––
October87.0%–in progress
November84.6%––
December70.5%––
Year-to-date average (Jan–Jul)84.1%68.9%▼ 18.1%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January220.0%
February10▼ 100.0%
March00–
April05–
May00–
June00–
July00–
August1––
September0––
October0–in progress
November3––
December2––
Year to date (Jan–Jul)37▲ 133.3%

Airlines on this route

  1. SkyWest Airlines 83.3%
  2. United Airlines 16.7%

Oct 1, 2024 – Jul 31, 2026

By direction

BOI → SFO

Scheduled flights
2,990
Flights operated
2,975
Cancelled
15 · 0.5%
On-time departures
77.7%

SFO → BOI

Scheduled flights
2,986
Flights operated
2,972
Cancelled
14 · 0.5%
On-time departures
78.6%

BOI → SFO and SFO → BOI counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
SkyWest Airlines OO 4,977 83.3% 78.5% 24
United Airlines UA 999 16.7% 76.3% 5

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 delay07:00–08:001.2min · 365 recorded · 365 measured
Gap to highest-delay hour26.0min07:00 ↔ 20:00
Recorded flights5,976BOI–SFO

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 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · 93.8% · 308 recorded · 306 measured · Source: the US BTS 07:00 · 92.6% · 365 recorded · 365 measured · Source: the US BTS 08:00 · 84.2% · 623 recorded · 619 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 189 recorded · 189 measured · Source: the US BTS 10:00 · 67.0% · 561 recorded · 560 measured · Source: the US BTS 11:00 · 85.8% · 233 recorded · 232 measured · Source: the US BTS 12:00 · 72.5% · 267 recorded · 265 measured · Source: the US BTS 13:00 · 73.9% · 635 recorded · 633 measured · Source: the US BTS 14:00 · 81.2% · 454 recorded · 452 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 23 recorded · 23 measured · Source: the US BTS 16:00 · 81.5% · 558 recorded · 552 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 40 recorded · 40 measured · Source: the US BTS 18:00 · 74.6% · 605 recorded · 598 measured · Source: the US BTS 19:00 · 74.0% · 794 recorded · 792 measured · Source: the US BTS 20:00 · 64.2% · 243 recorded · 243 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 77 recorded · 77 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

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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 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · 3.5 min · 308 recorded · 306 measured · Source: the US BTS 07:00 · 1.2 min · 365 recorded · 365 measured · Source: the US BTS 08:00 · 9.8 min · 623 recorded · 619 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 189 recorded · 189 measured · Source: the US BTS 10:00 · 14.4 min · 561 recorded · 560 measured · Source: the US BTS 11:00 · 2.6 min · 233 recorded · 232 measured · Source: the US BTS 12:00 · 17.7 min · 267 recorded · 265 measured · Source: the US BTS 13:00 · 13.7 min · 635 recorded · 633 measured · Source: the US BTS 14:00 · 12.7 min · 454 recorded · 452 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 23 recorded · 23 measured · Source: the US BTS 16:00 · 10.7 min · 558 recorded · 552 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 40 recorded · 40 measured · Source: the US BTS 18:00 · 21.9 min · 605 recorded · 598 measured · Source: the US BTS 19:00 · 16.9 min · 794 recorded · 792 measured · Source: the US BTS 20:00 · 27.2 min · 243 recorded · 243 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 77 recorded · 77 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

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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 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · 308 · 308 recorded · 306 measured · Source: the US BTS 07:00 · 365 · 365 recorded · 365 measured · Source: the US BTS 08:00 · 623 · 623 recorded · 619 measured · Source: the US BTS 09:00 · 189 · 189 recorded · 189 measured · Source: the US BTS 10:00 · 561 · 561 recorded · 560 measured · Source: the US BTS 11:00 · 233 · 233 recorded · 232 measured · Source: the US BTS 12:00 · 267 · 267 recorded · 265 measured · Source: the US BTS 13:00 · 635 · 635 recorded · 633 measured · Source: the US BTS 14:00 · 454 · 454 recorded · 452 measured · Source: the US BTS 15:00 · 23 · 23 recorded · 23 measured · Source: the US BTS 16:00 · 558 · 558 recorded · 552 measured · Source: the US BTS 17:00 · 40 · 40 recorded · 40 measured · Source: the US BTS 18:00 · 605 · 605 recorded · 598 measured · Source: the US BTS 19:00 · 794 · 794 recorded · 792 measured · Source: the US BTS 20:00 · 243 · 243 recorded · 243 measured · Source: the US BTS 21:00 · 77 · 77 recorded · 77 measured · Source: the US BTS 22:00 · 1 · 1 recorded · 1 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———
05:00No observations———
06:0093.8%3.5 min306308
07:0092.6%1.2 min365365
08:0084.2%9.8 min619623
09:00Fewer than 200 measured departures—189189
10:0067.0%14.4 min560561
11:0085.8%2.6 min232233
12:0072.5%17.7 min265267
13:0073.9%13.7 min633635
14:0081.2%12.7 min452454
15:00Fewer than 200 measured departures—2323
16:0081.5%10.7 min552558
17:00Fewer than 200 measured departures—4040
18:0074.6%21.9 min598605
19:0074.0%16.9 min792794
20:0064.2%27.2 min243243
21:00Fewer than 200 measured departures—7777
22:00Fewer than 200 measured departures—11
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 71.7% · 877 recorded · 872 measured · Source: the US BTS Tuesday · 84.8% · 830 recorded · 826 measured · Source: the US BTS Wednesday · 78.5% · 859 recorded · 855 measured · Source: the US BTS Thursday · 74.2% · 860 recorded · 854 measured · Source: the US BTS Friday · 76.7% · 874 recorded · 870 measured · Source: the US BTS Saturday · 84.3% · 826 recorded · 823 measured · Source: the US BTS Sunday · 77.6% · 850 recorded · 847 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 · 15.3 min · 877 recorded · 872 measured · Source: the US BTS Tuesday · 7.3 min · 830 recorded · 826 measured · Source: the US BTS Wednesday · 11.8 min · 859 recorded · 855 measured · Source: the US BTS Thursday · 19.2 min · 860 recorded · 854 measured · Source: the US BTS Friday · 15.7 min · 874 recorded · 870 measured · Source: the US BTS Saturday · 8.3 min · 826 recorded · 823 measured · Source: the US BTS Sunday · 14.0 min · 850 recorded · 847 measured · Source: the US BTS

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Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 877 · 877 recorded · 872 measured · Source: the US BTS Tuesday · 830 · 830 recorded · 826 measured · Source: the US BTS Wednesday · 859 · 859 recorded · 855 measured · Source: the US BTS Thursday · 860 · 860 recorded · 854 measured · Source: the US BTS Friday · 874 · 874 recorded · 870 measured · Source: the US BTS Saturday · 826 · 826 recorded · 823 measured · Source: the US BTS Sunday · 850 · 850 recorded · 847 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday71.7%15.3 min872877
Tuesday84.8%7.3 min826830
Wednesday78.5%11.8 min855859
Thursday74.2%19.2 min854860
Friday76.7%15.7 min870874
Saturday84.3%8.3 min823826
Sunday77.6%14.0 min847850

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 · 84.4% · 561 recorded · 557 measured · Source: the US BTS Feb · 80.3% · 487 recorded · 486 measured · Source: the US BTS Mar · 84.1% · 604 recorded · 604 measured · Source: the US BTS Apr · 80.8% · 589 recorded · 584 measured · Source: the US BTS May · 69.1% · 566 recorded · 566 measured · Source: the US BTS Jun · 68.2% · 506 recorded · 506 measured · Source: the US BTS Jul · 65.2% · 540 recorded · 540 measured · Source: the US BTS Aug · 85.3% · 232 recorded · 231 measured · Source: the US BTS Sep · 85.4% · 226 recorded · 226 measured · Source: the US BTS Oct · 85.1% · 462 recorded · 462 measured · Source: the US BTS Nov · 83.8% · 591 recorded · 580 measured · Source: the US BTS Dec · 74.6% · 612 recorded · 605 measured · Source: the US BTS

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Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Jan · 7.5 min · 561 recorded · 557 measured · Source: the US BTS Feb · 13.3 min · 487 recorded · 486 measured · Source: the US BTS Mar · 8.0 min · 604 recorded · 604 measured · Source: the US BTS Apr · 10.7 min · 589 recorded · 584 measured · Source: the US BTS May · 17.1 min · 566 recorded · 566 measured · Source: the US BTS Jun · 24.5 min · 506 recorded · 506 measured · Source: the US BTS Jul · 17.7 min · 540 recorded · 540 measured · Source: the US BTS Aug · 6.6 min · 232 recorded · 231 measured · Source: the US BTS Sep · 8.1 min · 226 recorded · 226 measured · Source: the US BTS Oct · 4.9 min · 462 recorded · 462 measured · Source: the US BTS Nov · 10.4 min · 591 recorded · 580 measured · Source: the US BTS Dec · 21.8 min · 612 recorded · 605 measured · Source: the US BTS

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Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 561 · 561 recorded · 557 measured · Source: the US BTS Feb · 487 · 487 recorded · 486 measured · Source: the US BTS Mar · 604 · 604 recorded · 604 measured · Source: the US BTS Apr · 589 · 589 recorded · 584 measured · Source: the US BTS May · 566 · 566 recorded · 566 measured · Source: the US BTS Jun · 506 · 506 recorded · 506 measured · Source: the US BTS Jul · 540 · 540 recorded · 540 measured · Source: the US BTS Aug · 232 · 232 recorded · 231 measured · Source: the US BTS Sep · 226 · 226 recorded · 226 measured · Source: the US BTS Oct · 462 · 462 recorded · 462 measured · Source: the US BTS Nov · 591 · 591 recorded · 580 measured · Source: the US BTS Dec · 612 · 612 recorded · 605 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan84.4%7.5 min557561
Feb80.3%13.3 min486487
Mar84.1%8.0 min604604
Apr80.8%10.7 min584589
May69.1%17.1 min566566
Jun68.2%24.5 min506506
Jul65.2%17.7 min540540
Aug85.3%6.6 min231232
Sep85.4%8.1 min226226
Oct85.1%4.9 min462462
Nov83.8%10.4 min580591
Dec74.6%21.8 min605612

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 77.8% 4,648
  • Delayed >15 min 21.7% 1,299
  • Cancelled 0.5% 29
  • 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

39
39 of 39
Flight numbersBy direction DeparturesOn time
OO4733 BOI → SFO 637 76.9%
OO5720 SFO → BOI 509 83.7%
OO4678 BOI → SFO 477 91.2%
OO5644 SFO → BOI 476 78.9%
OO4767 BOI → SFO 310 88.4%
OO4753 BOI → SFO 264 71.1%
OO5435 SFO → BOI 264 77.6%
OO3375 SFO → BOI 254 75.2%
OO3025 BOI → SFO 247 64.9%
OO5212 SFO → BOI 221 89.1%
OO5312 BOI → SFO 212 84.4%
OO6027 SFO → BOI 108 50.9%
UA324 BOI → SFO 104 88.4%
OO4661 BOI → SFO 96 50.5%
UA567 BOI → SFO 89 65.9%
OO3480 BOI → SFO 85 75.9%
OO5375 SFO → BOI 85 95.3%
OO3457 SFO → BOI 84 67.1%
OO6035 SFO → BOI 82 60.5%
OO4639 BOI → SFO 77 61.0%
OO5623 SFO → BOI 77 92.2%
OO5812 SFO → BOI 73 78.1%
UA267 SFO → BOI 72 56.9%
UA649 BOI → SFO 72 27.8%
OO5312 SFO → BOI 68 70.6%
UA1245 SFO → BOI 67 91.0%
UA2013 BOI → SFO 57 92.9%
UA2041 SFO → BOI 56 76.8%
UA1746 SFO → BOI 54 75.9%
UA1692 SFO → BOI 53 73.6%
UA482 BOI → SFO 52 84.6%
OO5264 SFO → BOI 37 89.2%
OO5664 SFO → BOI 37 97.3%
UA1391 SFO → BOI 37 77.8%
UA1406 SFO → BOI 37 86.1%
UA329 BOI → SFO 37 94.6%
UA2074 SFO → BOI 36 88.9%
UA2496 SFO → BOI 32 84.4%
UA411 BOI → SFO 32 71.9%

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 302 +26.9% 0 56.3%
June 2026 264 +9.1% 0 51.9%
May 2026 292 +6.6% 0 53.8%
April 2026 326 +26.4% 5 77.9%
March 2026 356 +43.5% 0 82.3%
February 2026 263 +17.9% 0 79.5%
January 2026 300 +16.7% 2 80.7%
December 2025 302 −0.3% 2 70.5%
November 2025 293 +2.1% 3 84.6%
October 2025 261 +29.9% 0 87.0%
September 2025 226 0 85.4%
August 2025 231 1 85.3%
July 2025 238 0 76.5%
June 2025 242 0 86.0%
May 2025 274 0 85.4%
April 2025 258 0 84.5%
March 2025 248 0 86.7%
February 2025 223 1 81.2%
January 2025 257 2 88.7%
December 2024 303 5 78.5%
November 2024 287 8 82.9%
October 2024 201 0 82.6%

How to read this chart

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