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823 km · Domestic

Boise Air Terminal/Gowen Field (BOI) – Oakland San Francisco Bay (OAK)

In July 2026, 60 flights operated between Boise Air Terminal/Gowen Field and Oakland San Francisco Bay (both directions), and 71.7% 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
January120118▼ 1.7%
February108110▲ 1.9%
March10869▼ 36.1%
April11066▼ 40.0%
May11270▼ 37.5%
June10360▼ 41.7%
July10560▼ 42.9%
August104––
September104––
October106–in progress
November118––
December124––
Year to date (Jan–Jul)766553▼ 27.8%

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
January87.5%91.5%▲ 4.6%
February88.0%80.0%▼ 9.1%
March84.3%78.3%▼ 7.1%
April90.9%74.2%▼ 18.4%
May83.0%78.6%▼ 5.3%
June80.6%61.7%▼ 23.4%
July72.4%71.7%▼ 1.0%
August89.4%––
September82.7%––
October80.2%–in progress
November82.2%––
December71.0%––
Year-to-date average (Jan–Jul)83.8%76.6%▼ 8.6%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January00–
February00–
March00–
April00–
May00–
June10▼ 100.0%
July10▼ 100.0%
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)20▼ 100.0%

By direction

BOI → OAK

Scheduled flights
1,092
Flights operated
1,089
Cancelled
3 · 0.3%
On-time departures
82.7%

OAK → BOI

Scheduled flights
1,093
Flights operated
1,092
Cancelled
1 · 0.1%
On-time departures
80.7%

BOI → OAK and OAK → BOI counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 2,185 100.0% 81.7% 4

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 delay11:00–12:002.4min · 293 recorded · 293 measured
Gap to highest-delay hour13.0min11:00 ↔ 20:00
Recorded flights2,185BOI–OAK

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 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 62 recorded · 62 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 141 recorded · 141 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 27 recorded · 27 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 164 recorded · 164 measured · Source: the US BTS 10:00 · 87.5% · 239 recorded · 239 measured · Source: the US BTS 11:00 · 87.4% · 293 recorded · 293 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 119 recorded · 119 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 72 recorded · 72 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 61 recorded · 61 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 58 recorded · 58 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 17:00 · 83.1% · 207 recorded · 207 measured · Source: the US BTS 18:00 · 74.9% · 298 recorded · 295 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 148 recorded · 147 measured · Source: the US BTS 20:00 · 71.9% · 270 recorded · 270 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 16 recorded · 16 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 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 62 recorded · 62 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 141 recorded · 141 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 27 recorded · 27 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 164 recorded · 164 measured · Source: the US BTS 10:00 · 5.0 min · 239 recorded · 239 measured · Source: the US BTS 11:00 · 2.4 min · 293 recorded · 293 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 119 recorded · 119 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 72 recorded · 72 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 61 recorded · 61 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 58 recorded · 58 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 17:00 · 8.9 min · 207 recorded · 207 measured · Source: the US BTS 18:00 · 11.2 min · 298 recorded · 295 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 148 recorded · 147 measured · Source: the US BTS 20:00 · 15.3 min · 270 recorded · 270 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 16 recorded · 16 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 · 5 · 5 recorded · 5 measured · Source: the US BTS 06:00 · 62 · 62 recorded · 62 measured · Source: the US BTS 07:00 · 141 · 141 recorded · 141 measured · Source: the US BTS 08:00 · 27 · 27 recorded · 27 measured · Source: the US BTS 09:00 · 164 · 164 recorded · 164 measured · Source: the US BTS 10:00 · 239 · 239 recorded · 239 measured · Source: the US BTS 11:00 · 293 · 293 recorded · 293 measured · Source: the US BTS 12:00 · 119 · 119 recorded · 119 measured · Source: the US BTS 13:00 · 72 · 72 recorded · 72 measured · Source: the US BTS 14:00 · 61 · 61 recorded · 61 measured · Source: the US BTS 15:00 · 58 · 58 recorded · 58 measured · Source: the US BTS 16:00 · 5 · 5 recorded · 5 measured · Source: the US BTS 17:00 · 207 · 207 recorded · 207 measured · Source: the US BTS 18:00 · 298 · 298 recorded · 295 measured · Source: the US BTS 19:00 · 148 · 148 recorded · 147 measured · Source: the US BTS 20:00 · 270 · 270 recorded · 270 measured · Source: the US BTS 21:00 · 16 · 16 recorded · 16 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———
05:00Fewer than 200 measured departures—55
06:00Fewer than 200 measured departures—6262
07:00Fewer than 200 measured departures—141141
08:00Fewer than 200 measured departures—2727
09:00Fewer than 200 measured departures—164164
10:0087.5%5.0 min239239
11:0087.4%2.4 min293293
12:00Fewer than 200 measured departures—119119
13:00Fewer than 200 measured departures—7272
14:00Fewer than 200 measured departures—6161
15:00Fewer than 200 measured departures—5858
16:00Fewer than 200 measured departures—55
17:0083.1%8.9 min207207
18:0074.9%11.2 min295298
19:00Fewer than 200 measured departures—147148
20:0071.9%15.3 min270270
21:00Fewer than 200 measured departures—1616
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 · 77.3% · 334 recorded · 334 measured · Source: the US BTS Tuesday · 83.5% · 334 recorded · 334 measured · Source: the US BTS Wednesday · 88.5% · 333 recorded · 331 measured · Source: the US BTS Thursday · 80.6% · 326 recorded · 325 measured · Source: the US BTS Friday · 80.4% · 328 recorded · 327 measured · Source: the US BTS Saturday · 84.9% · 238 recorded · 238 measured · Source: the US BTS Sunday · 77.1% · 292 recorded · 292 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 · 11.6 min · 334 recorded · 334 measured · Source: the US BTS Tuesday · 6.7 min · 334 recorded · 334 measured · Source: the US BTS Wednesday · 2.5 min · 333 recorded · 331 measured · Source: the US BTS Thursday · 7.2 min · 326 recorded · 325 measured · Source: the US BTS Friday · 11.3 min · 328 recorded · 327 measured · Source: the US BTS Saturday · 5.9 min · 238 recorded · 238 measured · Source: the US BTS Sunday · 13.4 min · 292 recorded · 292 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 · 334 · 334 recorded · 334 measured · Source: the US BTS Tuesday · 334 · 334 recorded · 334 measured · Source: the US BTS Wednesday · 333 · 333 recorded · 331 measured · Source: the US BTS Thursday · 326 · 326 recorded · 325 measured · Source: the US BTS Friday · 328 · 328 recorded · 327 measured · Source: the US BTS Saturday · 238 · 238 recorded · 238 measured · Source: the US BTS Sunday · 292 · 292 recorded · 292 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday77.3%11.6 min334334
Tuesday83.5%6.7 min334334
Wednesday88.5%2.5 min331333
Thursday80.6%7.2 min325326
Friday80.4%11.3 min327328
Saturday84.9%5.9 min238238
Sunday77.1%13.4 min292292

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 · 89.5% · 238 recorded · 238 measured · Source: the US BTS Feb · 83.9% · 218 recorded · 218 measured · Source: the US BTS Mar · Fewer than 200 measured departures · 177 recorded · 177 measured · Source: the US BTS Apr · Fewer than 200 measured departures · 176 recorded · 176 measured · Source: the US BTS May · Fewer than 200 measured departures · 182 recorded · 182 measured · Source: the US BTS Jun · Fewer than 200 measured departures · 164 recorded · 163 measured · Source: the US BTS Jul · Fewer than 200 measured departures · 166 recorded · 165 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 104 recorded · 104 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 104 recorded · 104 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 172 recorded · 172 measured · Source: the US BTS Nov · 85.5% · 234 recorded · 234 measured · Source: the US BTS Dec · 73.8% · 250 recorded · 248 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 · 2.9 min · 238 recorded · 238 measured · Source: the US BTS Feb · 6.8 min · 218 recorded · 218 measured · Source: the US BTS Mar · Fewer than 200 measured departures · 177 recorded · 177 measured · Source: the US BTS Apr · Fewer than 200 measured departures · 176 recorded · 176 measured · Source: the US BTS May · Fewer than 200 measured departures · 182 recorded · 182 measured · Source: the US BTS Jun · Fewer than 200 measured departures · 164 recorded · 163 measured · Source: the US BTS Jul · Fewer than 200 measured departures · 166 recorded · 165 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 104 recorded · 104 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 104 recorded · 104 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 172 recorded · 172 measured · Source: the US BTS Nov · 7.4 min · 234 recorded · 234 measured · Source: the US BTS Dec · 13.3 min · 250 recorded · 248 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 · 238 · 238 recorded · 238 measured · Source: the US BTS Feb · 218 · 218 recorded · 218 measured · Source: the US BTS Mar · 177 · 177 recorded · 177 measured · Source: the US BTS Apr · 176 · 176 recorded · 176 measured · Source: the US BTS May · 182 · 182 recorded · 182 measured · Source: the US BTS Jun · 164 · 164 recorded · 163 measured · Source: the US BTS Jul · 166 · 166 recorded · 165 measured · Source: the US BTS Aug · 104 · 104 recorded · 104 measured · Source: the US BTS Sep · 104 · 104 recorded · 104 measured · Source: the US BTS Oct · 172 · 172 recorded · 172 measured · Source: the US BTS Nov · 234 · 234 recorded · 234 measured · Source: the US BTS Dec · 250 · 250 recorded · 248 measured · Source: the US BTS

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

View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan89.5%2.9 min238238
Feb83.9%6.8 min218218
MarFewer than 200 measured departures—177177
AprFewer than 200 measured departures—176176
MayFewer than 200 measured departures—182182
JunFewer than 200 measured departures—163164
JulFewer than 200 measured departures—165166
AugFewer than 200 measured departures—104104
SepFewer than 200 measured departures—104104
OctFewer than 200 measured departures—172172
Nov85.5%7.4 min234234
Dec73.8%13.3 min248250

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 81.6% 1,782
  • Delayed >15 min 18.3% 399
  • Cancelled 0.2% 4
  • 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

27
27 of 27
Flight numbersBy direction DeparturesOn time
WN2334 OAK → BOI 121 81.7%
WN956 BOI → OAK 110 94.6%
WN3018 OAK → BOI 61 68.9%
WN967 BOI → OAK 61 81.7%
WN2757 BOI → OAK 58 96.6%
WN855 BOI → OAK 58 75.9%
WN4539 BOI → OAK 57 54.4%
WN716 OAK → BOI 57 77.2%
WN1458 OAK → BOI 53 92.5%
WN1821 BOI → OAK 52 92.3%
WN1381 BOI → OAK 50 92.0%
WN1383 BOI → OAK 50 92.0%
WN2182 OAK → BOI 50 78.0%
WN2267 OAK → BOI 50 74.0%
WN4858 OAK → BOI 50 98.0%
WN2963 BOI → OAK 42 85.7%
WN3184 OAK → BOI 42 73.8%
WN803 OAK → BOI 42 81.0%
WN945 OAK → BOI 42 85.7%
WN2243 BOI → OAK 41 87.8%
WN985 OAK → BOI 37 78.4%
WN1384 BOI → OAK 36 88.9%
WN2026 BOI → OAK 35 55.9%
WN1536 BOI → OAK 33 93.9%
WN3978 BOI → OAK 31 87.1%
WN4634 BOI → OAK 31 96.8%
WN4708 OAK → BOI 30 90.0%

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 60 −42.9% 0 71.7%
June 2026 60 −41.7% 0 61.7%
May 2026 70 −37.5% 0 78.6%
April 2026 66 −40.0% 0 74.2%
March 2026 69 −36.1% 0 78.3%
February 2026 110 +1.9% 0 80.0%
January 2026 118 −1.7% 0 91.5%
December 2025 124 +0.0% 0 71.0%
November 2025 118 +1.7% 0 82.2%
October 2025 106 +60.6% 0 80.2%
September 2025 104 0 82.7%
August 2025 104 0 89.4%
July 2025 105 1 72.4%
June 2025 103 1 80.6%
May 2025 112 0 83.0%
April 2025 110 0 90.9%
March 2025 108 0 84.3%
February 2025 108 0 88.0%
January 2025 120 0 87.5%
December 2024 124 2 76.6%
November 2024 116 0 88.8%
October 2024 66 0 87.9%

How to read this chart

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