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Airport · 12 months to July 2026
Oakland International: delays and on-time record
Oakland, California
BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report. Data through July 2026; this is a monthly history, not live airport status.
Oakland International (OAK) in Oakland, California had 31,406 scheduled domestic departures by reporting carriers in the 12 months to July 2026, about 86 a day, on 32 routes.
75.5% of those flights left the gate less than 15 minutes late, 0.6 points below the national departure figure of 76.1%. Flights arriving at OAK were on time 79.0% of the time, 3.0 points above the national arrival figure of 76.0%.
0.6% of scheduled departures were cancelled (national: 1.8%), and the average departure delay, counting early and on-time departures as zero, was 13.4 min.
Southwest Airlines is the largest reporting carrier at OAK with 89% of departures. Among carriers with at least 314 departures, SkyWest Airlines had the highest on-time arrival share for its OAK departures (87.9%) and Southwest Airlines the lowest (77.6%).
On-time departures are down 6.2 points on the previous 12 months (81.7%).
Of the delay minutes that carriers assigned to a BTS cause category for flights leaving OAK, late-arriving aircraft 48%, air carrier 36% and national aviation system 15%.
- On time 78.5%
- Arrived 15+ minutes late 20.7%
- Cancelled 0.6%
- Diverted 0.2%
As origin and as destination, against the nation
| Measure | Departures from OAK | Arrivals at OAK | All reported flights | OAK departures, previous 12 months |
|---|---|---|---|---|
| Departed on time (less than 15 min late) | 75.5% | 72.6% | 76.1% | 81.7% |
| Arrived on time | 78.5% | 79.0% | 76.0% | 84.3% |
| Cancelled | 0.6% | 0.5% | 1.8% | 0.6% |
| Diverted | 0.2% | 0.0% | 0.3% | 0.1% |
| Average departure delay (late minutes only) | 13.4 min | 14.6 min | 17.4 min | 10.4 min |
| Arrival delay minutes per 100 flights | 1,170 | 1,140 | 1,684 | 894 |
| Scheduled flights | 31,406 | 31,375 | 7,043,858 | 37,657 |
12 months to July 2026. The first column follows flights that left OAK; the second follows flights that landed there. Year on year, on-time departures moved −6.2 pts.
Airlines at OAK
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| WN Southwest Airlines | 27,848 | 89% | 77.6% | 5.6 min | 0.5% |
| OO SkyWest Airlines | 1,527 | 5% | 87.9% | -3.3 min | 0.5% |
| AS Alaska Airlines | 1,349 | 4% | 84.8% | 0.0 min | 1.3% |
| HA Hawaiian Airlines | 420 | 1% | 86.0% | 2.1 min | 2.9% |
| NK Spirit Airlines | 144 | 0% | 85.4% | -0.3 min | 0.7% |
| G4 Allegiant Air | 118 | 0% | 78.0% | 32.0 min | 0.0% |
Departures from OAK by reporting carrier, ordered by flights; on time means the flight reached its destination less than 15 minutes late. Green is at or above the airport's overall share of 78.5%. Carriers fly different routes at different hours, so the rows are not a like-for-like test.
Busiest routes from OAK
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| OAK–LAS | Oakland to Las Vegas | 3,293 | 76.8% | 8.0 min | 0.6% |
| OAK–SAN | Oakland to San Diego | 3,214 | 64.7% | 15.3 min | 0.9% |
| OAK–BUR | Oakland to Burbank | 2,735 | 81.0% | 3.0 min | 1.0% |
| OAK–SNA | Oakland to Santa Ana | 2,354 | 84.8% | -1.1 min | 0.7% |
| OAK–LAX | Oakland to Los Angeles | 2,082 | 78.7% | 4.1 min | 0.7% |
| OAK–PHX | Oakland to Phoenix | 1,901 | 77.3% | 8.3 min | 0.3% |
| OAK–SEA | Oakland to Seattle | 1,879 | 77.0% | 5.1 min | 0.8% |
| OAK–SLC | Oakland to Salt Lake City | 1,643 | 88.3% | -3.2 min | 0.1% |
| OAK–DEN | Oakland to Denver | 1,602 | 71.8% | 10.0 min | 0.3% |
| OAK–LGB | Oakland to Long Beach | 1,597 | 85.9% | -1.1 min | 0.3% |
| OAK–ONT | Oakland to Ontario | 1,471 | 81.4% | 2.1 min | 0.4% |
| OAK–PDX | Oakland to Portland | 1,305 | 80.1% | 4.0 min | 0.4% |
| OAK–HNL | Oakland to Honolulu | 729 | 79.0% | 4.4 min | 0.8% |
| OAK–OGG | Oakland to Kahului | 725 | 85.2% | -3.3 min | 1.1% |
| OAK–LIH | Oakland to Lihue | 659 | 81.3% | 2.9 min | 0.8% |
| OAK–BOI | Oakland to Boise | 555 | 84.1% | 2.0 min | 0.0% |
| OAK–MDW | Oakland to Chicago | 505 | 83.8% | -0.3 min | 0.2% |
| OAK–PSP | Oakland to Palm Springs | 472 | 75.2% | 5.4 min | 0.8% |
| OAK–DAL | Oakland to Dallas | 417 | 75.8% | 8.7 min | 1.0% |
| OAK–GEG | Oakland to Spokane | 381 | 73.5% | 5.7 min | 0.0% |
| OAK–HOU | Oakland to Houston | 376 | 75.8% | 6.7 min | 0.5% |
| OAK–AUS | Oakland to Austin | 359 | 76.3% | 8.8 min | 0.0% |
| OAK–ABQ | Oakland to Albuquerque | 353 | 77.1% | 6.0 min | 0.0% |
| OAK–SBA | Oakland to Santa Barbara | 300 | 84.7% | -1.2 min | 0.7% |
| OAK–EUG | Oakland to Eugene | 217 | 82.0% | 0.4 min | 0.0% |
| OAK–MCI | Oakland to Kansas City | 159 | 89.3% | -3.3 min | 0.0% |
The 26 busiest of 32 routes with reported flights. Routes with at least 10 flights a month have their own page.
Month by month
By scheduled departure hour
Among hours with at least 628 departures, 6 am to 7 am had the highest on-time share (93.7% of 2,458 flights) and 8 pm to 9 pm the lowest (61.1% of 1,967).
Delay causes
Cancellations by reported reason (180 in the period): air carrier 51%, weather 23%, national aviation system 27%, security 0%.
Checkpoint volumes
TSA publishes daily checkpoint passenger counts for the country as a whole, not for OAK on its own. The national series through September 2026 is on the checkpoint volumes page.
Questions and answers
How often do flights leave OAK on time?
75.5% of the 31,406 scheduled domestic departures in the 12 months to July 2026 left less than 15 minutes late; the national figure was 76.1%. 0.6% were cancelled.
How often do flights arrive at OAK on time?
79.0% of 31,375 scheduled arrivals were on time by the BTS definition, against 76.0% nationally.
Which airline has the highest on-time share at OAK?
Counting departures from OAK and whether they reached their destination on time, SkyWest Airlines had the highest share (87.9% of 1,527 flights), then Hawaiian Airlines (86.0%) and Alaska Airlines (84.8%). Carriers fly different routes at different hours, so the figures are not a like-for-like test.
What causes delays at OAK?
For departures from OAK that reached their destination 15 or more minutes late, carriers attributed the delay minutes as follows: late-arriving aircraft 48%, air carrier 36%, national aviation system 15%, extreme weather 1%, security 0%.
What time of day has the highest on-time share at OAK?
Departures scheduled from 6 am to 7 am local time left on time 93.7% of the time, the highest of any hour with enough flights to compare; 8 pm to 9 pm was lowest at 61.1%.
Is it getting better?
On-time departures for the 12 months to July 2026 were 75.5%, down 6.2 points on the previous 12 months (81.7%). The monthly chart shows each of the last 36 months, and each month has its own page.
Does this page show today's delays at OAK?
No. BTS publishes on-time records about two months after the month ends, so this page is a monthly history through July 2026. For live conditions use the FAA airport status service or your airline.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987 to present), monthly files August 2023 to July 2026; airport name from the BTS airport lookup table. US government works in the public domain. Domestic scheduled flights by reporting carriers only: international flights, charters and smaller carriers are not in the source. Totals and averages only; no individual flight or aircraft is identified. See the methodology; report processing errors through corrections.