Airport reliability
San Diego (SAN) on-time performance
How reliably flights leave San Diego, CA (SAN) and reach their destinations, by airline, departure hour and month, September 2025 to August 2026.
San Diego, CA101,169 departures in 12 months
- Departures on time
- 75.0% U.S. average 75.6%
- Cancelled
- 1.3% U.S. average 1.9%
- 60+ minutes late
- 7.0% U.S. average 8.1%
- Scheduled departures
- 101,169 12 months
What this means
SAN departures ran below the U.S. average.
- 75.0% of the 101,169 scheduled departures from San Diego (SAN) arrived at their destination on time, 0.6 points lower than the U.S. average of 75.6%.
- 1.3% of departures were cancelled (U.S. average 1.9%), and 7.0% arrived an hour or more late.
- Flights arriving at SAN were on time 71.0% of the time.
- Among airlines with at least 300 departures, Delta Air Lines was the most punctual from SAN (85.1%) and Hawaiian Airlines the least (63.8%).
- Over the last 3 years, February was the most reliable month for departures from SAN (81.4% on time) and July the least reliable (69.1%).
- Cancellations peaked in January, when 3.1% of flights were cancelled.
- Flights scheduled to depart 6 am to 7 am were the most punctual (90.1% on time); flights scheduled to depart 4 pm to 5 pm were the least (64.5%).
Airlines at SAN
Ranked by on-time arrival
| Airline | On time | Cancelled | 60+ min late | Avg delay when late | Departures |
|---|---|---|---|---|---|
| Delta Air Lines | 85.1% | 1.2% | 4.2% | 79 min | 9,581 |
| Spirit Airlines | 84.7% | 3.4% | 4.2% | 84 min | 118 |
| United Airlines | 78.8% | 0.7% | 6.7% | 69 min | 10,655 |
| American Airlines | 78.7% | 1.6% | 7.4% | 103 min | 9,387 |
| Alaska Airlines | 77.4% | 1.4% | 5.8% | 57 min | 13,373 |
| JetBlue Airways | 76.0% | 3.2% | 9.9% | 97 min | 1,643 |
| SkyWest AirlinesSold as United Express, Delta Connection, American Eagle, Alaska | 75.9% | 2.0% | 7.0% | 58 min | 14,921 |
| Frontier Airlines | 69.9% | 1.9% | 10.9% | 81 min | 2,105 |
| Southwest Airlines | 69.8% | 0.9% | 7.8% | 51 min | 39,067 |
| Hawaiian Airlines | 63.8% | 2.2% | 11.0% | 86 min | 318 |
| Allegiant Air | Insufficient sample | 1 | |||
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On-time rate by departure hour
Share of scheduled flights on time SAN average 75.0%
Show as table
| Period | On time | Flights |
|---|---|---|
| Departing 6 am to 7 am | 90.1% | 9,359 |
| Departing 7 am to 8 am | 84.6% | 6,240 |
| Departing 8 am to 9 am | 84.4% | 8,451 |
| Departing 9 am to 10 am | 79.7% | 6,488 |
| Departing 10 am to 11 am | 79.2% | 6,752 |
| Departing 11 am to noon | 76.8% | 6,101 |
| Departing noon to 1 pm | 71.5% | 6,533 |
| Departing 1 pm to 2 pm | 67.0% | 6,886 |
| Departing 2 pm to 3 pm | 66.2% | 5,256 |
| Departing 3 pm to 4 pm | 67.8% | 5,014 |
| Departing 4 pm to 5 pm | 64.5% | 5,114 |
| Departing 5 pm to 6 pm | 69.2% | 5,742 |
| Departing 6 pm to 7 pm | 66.0% | 4,474 |
| Departing 7 pm to 8 pm | 64.7% | 4,815 |
| Departing 8 pm to 9 pm | 66.4% | 4,559 |
| Departing 9 pm to 10 pm | 72.3% | 5,000 |
| Departing 10 pm to 11 pm | 84.2% | 4,385 |
Best and worst months at SAN
Share of scheduled flights on time 12-month average 75.0%
Show as table
| Period | On time | Flights |
|---|---|---|
| January | 80.0% | 21,670 |
| February | 81.4% | 20,196 |
| March | 77.6% | 24,063 |
| April | 79.9% | 24,049 |
| May | 76.8% | 25,338 |
| June | 71.3% | 25,845 |
| July | 69.1% | 26,842 |
| August | 71.8% | 26,362 |
| September | 81.0% | 23,429 |
| October | 76.2% | 25,090 |
| November | 80.0% | 23,827 |
| December | 75.6% | 24,151 |
Month by month, last 12 months
Share of scheduled flights on time U.S. average 75.6%
Show as table
| Period | On time | Flights |
|---|---|---|
| Sep 2025 | 80.6% | 7,875 |
| Oct 2025 | 78.1% | 8,687 |
| Nov 2025 | 74.7% | 8,246 |
| Dec 2025 | 74.0% | 8,228 |
| Jan 2026 | 80.6% | 7,406 |
| Feb 2026 | 82.9% | 7,008 |
| Mar 2026 | 77.0% | 8,547 |
| Apr 2026 | 80.3% | 8,505 |
| May 2026 | 76.0% | 8,947 |
| Jun 2026 | 70.0% | 8,996 |
| Jul 2026 | 66.7% | 9,345 |
| Aug 2026 | 63.9% | 9,379 |
Busiest routes from SAN
| To | On time | Cancelled | Airlines | Flights |
|---|---|---|---|---|
| San Francisco (SFO) | 58.3% | 1.3% | 5 | 6,763 |
| Denver (DEN) | 77.4% | 1.0% | 5 | 6,134 |
| Phoenix (PHX) | 72.2% | 1.6% | 5 | 6,022 |
| Las Vegas (LAS) | 72.6% | 1.5% | 4 | 5,348 |
| Sacramento (SMF) | 73.8% | 0.9% | 3 | 5,181 |
| San Jose (SJC) | 73.8% | 0.9% | 3 | 4,973 |
| Seattle (SEA) | 79.9% | 1.4% | 4 | 4,646 |
| Chicago (ORD) | 75.5% | 1.3% | 4 | 3,944 |
| Dallas/Fort Worth (DFW) | 75.2% | 2.3% | 3 | 3,737 |
| Oakland (OAK) | 72.1% | 1.0% | 3 | 3,290 |
| Salt Lake City (SLC) | 82.3% | 0.7% | 4 | 3,100 |
| Austin (AUS) | 69.2% | 1.0% | 3 | 2,617 |
| Los Angeles (LAX) | 86.6% | 0.9% | 2 | 2,452 |
| New York (JFK) | 78.8% | 3.3% | 3 | 2,417 |
| Atlanta (ATL) | 85.0% | 0.6% | 2 | 2,352 |
| Boston (BOS) | 73.7% | 1.7% | 4 | 1,881 |
| Portland (PDX) | 81.8% | 0.9% | 3 | 1,838 |
| Fresno (FAT) | 76.2% | 2.0% | 2 | 1,818 |
| Honolulu (HNL) | 69.8% | 1.6% | 3 | 1,776 |
| Houston (IAH) | 83.5% | 0.3% | 1 | 1,686 |
Sources & data dates
- Source
- U.S. DOT Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987-present)
- Period
- September 2025 to August 2026 (12 months); month-of-year patterns September 2023 to August 2026
- Data through
- August 2026
- Processed
- 2026-11-03
- Scope
- Scheduled nonstop domestic departures from San Diego, CA (SAN) by airlines that report to the DOT.
- Method
- Rates use all scheduled flights as the denominator; cancelled and diverted flights count as not on time. Figures based on fewer than 50 scheduled flights are suppressed. Full methodology.