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1,207 km · Domestic

Boise Air Terminal/Gowen Field (BOI) – San Diego (SAN)

In July 2026, 160 flights operated between Boise Air Terminal/Gowen Field and San Diego (both directions), and 74.4% 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
January86145▲ 68.6%
February89147▲ 65.2%
March120177▲ 47.5%
April137158▲ 15.3%
May185202▲ 9.2%
June178172▼ 3.4%
July182160▼ 12.1%
August175––
September169––
October181–in progress
November177––
December186––
Year to date (Jan–Jul)9771,161▲ 18.8%

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
January89.5%81.4%▼ 9.1%
February89.9%84.4%▼ 6.1%
March90.8%81.9%▼ 9.8%
April81.8%79.7%▼ 2.6%
May90.8%71.3%▼ 21.5%
June79.8%72.7%▼ 8.9%
July80.8%74.4%▼ 7.9%
August84.6%––
September84.6%––
October85.6%–in progress
November84.2%––
December77.4%––
Year-to-date average (Jan–Jul)86.2%78.0%▼ 9.5%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January21▼ 50.0%
February10▼ 100.0%
March01–
April10▼ 100.0%
May10▼ 100.0%
June20▼ 100.0%
July00–
August0––
September3––
October1–in progress
November2––
December2––
Year to date (Jan–Jul)72▼ 71.4%

Airlines on this route

  1. SkyWest Airlines 48.7%
  2. Southwest Airlines 34.9%
  3. Alaska Airlines 16.4%

Oct 1, 2024 – Jul 31, 2026

By direction

BOI → SAN

Scheduled flights
1,696
Flights operated
1,684
Cancelled
12 · 0.7%
On-time departures
86.0%

SAN → BOI

Scheduled flights
1,698
Flights operated
1,685
Cancelled
13 · 0.8%
On-time departures
77.7%

BOI → SAN and SAN → BOI counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
SkyWest Airlines OO 1,653 48.7% 86.0% 15
Southwest Airlines WN 1,184 34.9% 73.0% 4
Alaska Airlines AS 557 16.4% 88.7% 6

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 delay07:00–08:00-1.7min · 369 recorded · 366 measured
Gap to highest-delay hour20.4min07:00 ↔ 12:00
Recorded flights3,394BOI–SAN

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 · Fewer than 200 measured departures · 77 recorded · 77 measured · Source: the US BTS 07:00 · 92.1% · 369 recorded · 366 measured · Source: the US BTS 08:00 · 92.6% · 589 recorded · 582 measured · Source: the US BTS 09:00 · 91.0% · 244 recorded · 243 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 163 recorded · 161 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 30 recorded · 30 measured · Source: the US BTS 12:00 · 68.5% · 262 recorded · 260 measured · Source: the US BTS 13:00 · 76.2% · 235 recorded · 235 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 164 recorded · 163 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 99 recorded · 99 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 41 recorded · 41 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 146 recorded · 144 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 115 recorded · 115 measured · Source: the US BTS 19:00 · 81.0% · 455 recorded · 452 measured · Source: the US BTS 20:00 · 81.5% · 345 recorded · 341 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 60 recorded · 60 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 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 77 recorded · 77 measured · Source: the US BTS 07:00 · -1.7 min · 369 recorded · 366 measured · Source: the US BTS 08:00 · -0.2 min · 589 recorded · 582 measured · Source: the US BTS 09:00 · 2.0 min · 244 recorded · 243 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 163 recorded · 161 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 30 recorded · 30 measured · Source: the US BTS 12:00 · 18.8 min · 262 recorded · 260 measured · Source: the US BTS 13:00 · 10.9 min · 235 recorded · 235 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 164 recorded · 163 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 99 recorded · 99 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 41 recorded · 41 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 146 recorded · 144 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 115 recorded · 115 measured · Source: the US BTS 19:00 · 8.3 min · 455 recorded · 452 measured · Source: the US BTS 20:00 · 5.5 min · 345 recorded · 341 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 60 recorded · 60 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 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · 77 · 77 recorded · 77 measured · Source: the US BTS 07:00 · 369 · 369 recorded · 366 measured · Source: the US BTS 08:00 · 589 · 589 recorded · 582 measured · Source: the US BTS 09:00 · 244 · 244 recorded · 243 measured · Source: the US BTS 10:00 · 163 · 163 recorded · 161 measured · Source: the US BTS 11:00 · 30 · 30 recorded · 30 measured · Source: the US BTS 12:00 · 262 · 262 recorded · 260 measured · Source: the US BTS 13:00 · 235 · 235 recorded · 235 measured · Source: the US BTS 14:00 · 164 · 164 recorded · 163 measured · Source: the US BTS 15:00 · 99 · 99 recorded · 99 measured · Source: the US BTS 16:00 · 41 · 41 recorded · 41 measured · Source: the US BTS 17:00 · 146 · 146 recorded · 144 measured · Source: the US BTS 18:00 · 115 · 115 recorded · 115 measured · Source: the US BTS 19:00 · 455 · 455 recorded · 452 measured · Source: the US BTS 20:00 · 345 · 345 recorded · 341 measured · Source: the US BTS 21:00 · 60 · 60 recorded · 60 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———
05:00No observations———
06:00Fewer than 200 measured departures—7777
07:0092.1%-1.7 min366369
08:0092.6%-0.2 min582589
09:0091.0%2.0 min243244
10:00Fewer than 200 measured departures—161163
11:00Fewer than 200 measured departures—3030
12:0068.5%18.8 min260262
13:0076.2%10.9 min235235
14:00Fewer than 200 measured departures—163164
15:00Fewer than 200 measured departures—9999
16:00Fewer than 200 measured departures—4141
17:00Fewer than 200 measured departures—144146
18:00Fewer than 200 measured departures—115115
19:0081.0%8.3 min452455
20:0081.5%5.5 min341345
21:00Fewer than 200 measured departures—6060
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 · 80.0% · 523 recorded · 521 measured · Source: the US BTS Tuesday · 85.5% · 450 recorded · 449 measured · Source: the US BTS Wednesday · 88.0% · 442 recorded · 440 measured · Source: the US BTS Thursday · 76.0% · 515 recorded · 508 measured · Source: the US BTS Friday · 75.9% · 518 recorded · 511 measured · Source: the US BTS Saturday · 88.6% · 443 recorded · 438 measured · Source: the US BTS Sunday · 81.3% · 503 recorded · 502 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 · 9.8 min · 523 recorded · 521 measured · Source: the US BTS Tuesday · 3.5 min · 450 recorded · 449 measured · Source: the US BTS Wednesday · 3.4 min · 442 recorded · 440 measured · Source: the US BTS Thursday · 11.5 min · 515 recorded · 508 measured · Source: the US BTS Friday · 12.3 min · 518 recorded · 511 measured · Source: the US BTS Saturday · 3.0 min · 443 recorded · 438 measured · Source: the US BTS Sunday · 7.7 min · 503 recorded · 502 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 · 523 · 523 recorded · 521 measured · Source: the US BTS Tuesday · 450 · 450 recorded · 449 measured · Source: the US BTS Wednesday · 442 · 442 recorded · 440 measured · Source: the US BTS Thursday · 515 · 515 recorded · 508 measured · Source: the US BTS Friday · 518 · 518 recorded · 511 measured · Source: the US BTS Saturday · 443 · 443 recorded · 438 measured · Source: the US BTS Sunday · 503 · 503 recorded · 502 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday80.0%9.8 min521523
Tuesday85.5%3.5 min449450
Wednesday88.0%3.4 min440442
Thursday76.0%11.5 min508515
Friday75.9%12.3 min511518
Saturday88.6%3.0 min438443
Sunday81.3%7.7 min502503

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% · 234 recorded · 231 measured · Source: the US BTS Feb · 86.4% · 237 recorded · 236 measured · Source: the US BTS Mar · 85.5% · 298 recorded · 297 measured · Source: the US BTS Apr · 80.7% · 296 recorded · 295 measured · Source: the US BTS May · 80.6% · 388 recorded · 387 measured · Source: the US BTS Jun · 76.3% · 352 recorded · 350 measured · Source: the US BTS Jul · 77.8% · 342 recorded · 342 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 175 recorded · 175 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 172 recorded · 169 measured · Source: the US BTS Oct · 86.7% · 273 recorded · 271 measured · Source: the US BTS Nov · 84.6% · 309 recorded · 305 measured · Source: the US BTS Dec · 76.5% · 318 recorded · 311 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 · 6.5 min · 234 recorded · 231 measured · Source: the US BTS Feb · 5.5 min · 237 recorded · 236 measured · Source: the US BTS Mar · 7.7 min · 298 recorded · 297 measured · Source: the US BTS Apr · 6.7 min · 296 recorded · 295 measured · Source: the US BTS May · 8.8 min · 388 recorded · 387 measured · Source: the US BTS Jun · 11.4 min · 352 recorded · 350 measured · Source: the US BTS Jul · 9.1 min · 342 recorded · 342 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 175 recorded · 175 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 172 recorded · 169 measured · Source: the US BTS Oct · 2.9 min · 273 recorded · 271 measured · Source: the US BTS Nov · 6.2 min · 309 recorded · 305 measured · Source: the US BTS Dec · 12.1 min · 318 recorded · 311 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 · 234 · 234 recorded · 231 measured · Source: the US BTS Feb · 237 · 237 recorded · 236 measured · Source: the US BTS Mar · 298 · 298 recorded · 297 measured · Source: the US BTS Apr · 296 · 296 recorded · 295 measured · Source: the US BTS May · 388 · 388 recorded · 387 measured · Source: the US BTS Jun · 352 · 352 recorded · 350 measured · Source: the US BTS Jul · 342 · 342 recorded · 342 measured · Source: the US BTS Aug · 175 · 175 recorded · 175 measured · Source: the US BTS Sep · 172 · 172 recorded · 169 measured · Source: the US BTS Oct · 273 · 273 recorded · 271 measured · Source: the US BTS Nov · 309 · 309 recorded · 305 measured · Source: the US BTS Dec · 318 · 318 recorded · 311 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
Jan84.4%6.5 min231234
Feb86.4%5.5 min236237
Mar85.5%7.7 min297298
Apr80.7%6.7 min295296
May80.6%8.8 min387388
Jun76.3%11.4 min350352
Jul77.8%9.1 min342342
AugFewer than 200 measured departures—175175
SepFewer than 200 measured departures—169172
Oct86.7%2.9 min271273
Nov84.6%6.2 min305309
Dec76.5%12.1 min311318

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 81.3% 2,758
  • Delayed >15 min 18.0% 611
  • Cancelled 0.7% 25
  • 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

30
30 of 30
Flight numbersBy direction DeparturesOn time
OO3330 SAN → BOI 354 89.5%
OO3481 BOI → SAN 352 82.6%
AS166 BOI → SAN 176 93.7%
OO3456 BOI → SAN 157 98.7%
OO3374 SAN → BOI 97 81.1%
OO3392 SAN → BOI 96 76.8%
OO3464 SAN → BOI 75 84.7%
OO3476 BOI → SAN 72 87.3%
AS1332 SAN → BOI 71 77.1%
OO3454 BOI → SAN 69 97.1%
AS908 SAN → BOI 67 84.6%
AS909 BOI → SAN 66 96.9%
WN426 BOI → SAN 60 76.7%
WN3213 SAN → BOI 57 86.0%
AS1425 SAN → BOI 56 85.7%
OO3455 BOI → SAN 53 94.2%
OO3235 BOI → SAN 52 94.2%
OO3331 SAN → BOI 52 69.2%
OO3463 SAN → BOI 51 76.0%
WN2397 SAN → BOI 50 46.0%
WN2034 BOI → SAN 49 77.6%
WN1397 BOI → SAN 46 78.3%
WN712 BOI → SAN 41 87.8%
AS490 SAN → BOI 36 83.3%
WN4725 SAN → BOI 35 28.6%
AS220 SAN → BOI 34 82.4%
WN2779 BOI → SAN 34 84.4%
WN4873 SAN → BOI 34 76.5%
WN1219 BOI → SAN 33 97.0%
WN2583 BOI → SAN 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 160 −12.1% 0 74.4%
June 2026 172 −3.4% 0 72.7%
May 2026 202 +9.2% 0 71.3%
April 2026 158 +15.3% 0 79.7%
March 2026 177 +47.5% 1 81.9%
February 2026 147 +65.2% 0 84.4%
January 2026 145 +68.6% 1 81.4%
December 2025 186 +48.8% 2 77.4%
November 2025 177 +38.3% 2 84.2%
October 2025 181 +101.1% 1 85.6%
September 2025 169 3 84.6%
August 2025 175 0 84.6%
July 2025 182 0 80.8%
June 2025 178 2 79.8%
May 2025 185 1 90.8%
April 2025 137 1 81.8%
March 2025 120 0 90.8%
February 2025 89 1 89.9%
January 2025 86 2 89.5%
December 2024 125 5 75.2%
November 2024 128 2 85.2%
October 2024 90 1 88.9%

How to read this chart

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