Airport month record
OAKJUL
Oakland International in July 2025
- Departures
- 3,046
- Month
- July 2025
- National, same month
- 71.1%
- Carriers
- 6
Historical statistics for July 2025, not live status or a forecast for this year’s July. For today’s conditions at OAK, see live FAA status.
OAK in July lands a B, 7 points better than the national rate of 71.1%. About one flight in five arrives 15 minutes late or worse, and those flights are late by about an hour on average. That is a workable record, not a spotless one. That rests on 3,046 flights, with a median arrival 4 minutes early.
Set against the rest of the country, OAK's July record is 7 points better than the US average of 71.1%. That gap is worth roughly 73 fewer late arrivals for every thousand flights.
Key figures
On time
78.4%
Arrivals under 15 minutes late, of 3,009 completed departures
Avg delay
62 min
Across delayed arrivals only, not all flights
Cancelled
1.05%
Nationally in July: 2.45%
Whole year
79.5%
OAK across all twelve months
These figures cover 3,046 departures from Oakland International in July 2025. On time means an arrival less than 15 minutes after the scheduled gate time, the DOT's threshold, and the national comparison uses every US departure in the same month rather than the whole year.
Against the year
July next to OAK's other months
Against OAK's own year, July ran about a point worse than the twelve-month rate of 79.5%, which makes it number eight of twelve months, best first. Cancellations are where July stands out: 1.05% of scheduled departures were called off, 1.6 times the airport's rate across the year.
| Month | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| July 2025 (this page) | 3,046 | 78.4% | 62 min | 1.05% | B |
| August 2025 | 2,850 | 81.4% | 58 min | 0.35% | B+ |
| September 2025 | 2,714 | 82.4% | 47 min | 0.29% | B+ |
| October 2025 | 2,771 | 79.6% | 52 min | 0.25% | B+ |
| November 2025 | 2,618 | 81.6% | 56 min | 2.06% | B |
| December 2025 | 2,646 | 76.7% | 50 min | 0.57% | B+ |
| January 2026 | 2,408 | 88.4% | 54 min | 0.46% | A+ |
| February 2026 | 2,356 | 83.7% | 50 min | 0.25% | B+ |
| March 2026 | 2,569 | 80.1% | 53 min | 0.97% | B+ |
| April 2026 | 2,509 | 76.4% | 46 min | 0.28% | B+ |
| May 2026 | 2,683 | 76.1% | 50 min | 0.63% | B+ |
| June 2026 | 2,597 | 69.7% | 49 min | 0.42% | C+ |
Departure window
The best time of day to leave OAK in July
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 32 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am661 flights95.2%
- 8am–11am514 flights86.4%
- 11am–2pm610 flights81.7%
- 2pm–5pm388 flights63.6%
- 5pm–8pm490 flights67.2%
- 8pm–5am383 flights63.1%
Scale runs 55% to 100%. Rows with fewer than 30 flights show a dash.
The 8pm–5am window is where this operation falls apart: 63.1% on time, against 95.2% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 5am–8am window is the busiest, with 661 flights scheduled in it.
Across the week, Saturday is the strongest day at 87.5% on time and Thursday the weakest at 67.6%. 20 points is a smaller lever than departure hour, but it is free.
Carrier by carrier
Which airlines ran best at OAK in July
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Southwest Airlines | 2,634 | 77.5% | 54 min | 1.10% | B |
| SkyWest Airlinesthin sample | 123 | 92.7% | 142 min | 0.00% | A+ |
| Spirit Airlinesthin sample | 103 | 79.4% | 78 min | 0.97% | B+ |
| Hawaiian Airlinesthin sample | 78 | 85.9% | 406 min | 0.00% | A+ |
| Alaska Airlinesthin sample | 61 | 76.3% | 40 min | 3.28% | B− |
| Allegiant Airthin sample | 47 | 80.9% | 120 min | 0.00% | B+ |
Route by route
Busiest routes out of OAK in July
| Route | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OAK to LAS · Las Vegasthin sample | 349 | 78.6% | 64 min | 1.15% | B |
| OAK to SAN · San Diegothin sample | 288 | 75.1% | 50 min | 1.04% | B |
| OAK to BUR · Burbankthin sample | 258 | 79.2% | 51 min | 3.10% | B− |
| OAK to SEA · Seattlethin sample | 233 | 71.4% | 49 min | 0.86% | C+ |
| OAK to SNA · Santa Anathin sample | 219 | 82.9% | 51 min | 0.91% | B+ |
| OAK to LAX · Los Angelesthin sample | 183 | 80.1% | 60 min | 3.83% | B− |
| OAK to PHX · Phoenixthin sample | 179 | 73.7% | 46 min | 0.00% | C+ |
| OAK to DEN · Denverthin sample | 159 | 71.6% | 58 min | 1.26% | C |
| OAK to SLC · Salt Lake Citythin sample | 150 | 92.0% | 111 min | 0.00% | A+ |
| OAK to LGB · Long Beachthin sample | 145 | 88.2% | 73 min | 0.69% | A+ |
| OAK to ONT · Ontariothin sample | 134 | 85.8% | 73 min | 0.00% | A+ |
| OAK to PDX · Portlandthin sample | 119 | 70.6% | 57 min | 0.00% | C+ |
| OAK to HNL · Honoluluthin sample | 62 | 88.7% | 255 min | 0.00% | A+ |
| OAK to LIH · Lihuethin sample | 62 | 87.1% | 52 min | 0.00% | A+ |
| OAK to DAL · Dallasthin sample | 62 | 70.5% | 62 min | 0.00% | C+ |
| OAK to GEG · Spokanethin sample | 53 | 75.5% | 42 min | 0.00% | B+ |
| OAK to BOI · Boisethin sample | 53 | 71.7% | 68 min | 0.00% | C+ |
| OAK to OGG · Kahuluithin sample | 47 | 66.0% | 206 min | 0.00% | C+ |
| OAK to MDW · Chicagothin sample | 35 | 94.1% | 32 min | 0.00% | A+ |
| OAK to AUS · Austinthin sample | 31 | 56.7% | 38 min | 0.00% | D+ |
| OAK to EUG · Eugenethin sample | 31 | 65.5% | 56 min | 6.45% | C− |
| OAK to MCI · Kansas Citythin sample | 31 | 83.9% | 26 min | 0.00% | B+ |
| OAK to ABQ · Albuquerquethin sample | 31 | 61.3% | 41 min | 0.00% | D+ |
| OAK to HOU · Houstonthin sample | 31 | 71.0% | 35 min | 0.00% | C+ |
Delay causes
What held OAK up in July
One category carries most of the weight here. Carrier accounts for 43% of the 40,000 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 43%Carrier
- 43%Late-arriving aircraft
- 12%National Airspace System
- 2%Extreme weather
- 0%Security
43% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 40,000 reported delay minutes here, that single category outweighs weather by 28 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 40,367 reported delay minutes.
Cancellations sit at 1.05% against a national 2.45%, which is ordinary. Diversions add another 0.16%.
6.2% of arrivals land an hour or more late, close to the national 12.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
What to do with this
Flying from OAK in July
For a July trip through OAK: expect 78.4% on time and 1.05% cancelled, going by July 2025. The 5am–8am window was the strongest part of the day.
Related
Where to go next
- Oakland International (OAK), the whole year
- OAK in August81.4%
- OAK in September82.4%
- OAK in October79.6%
- OAK in November81.6%
- OAK in December76.7%
- OAK in January88.4%
- OAK in February83.7%
- OAK in March80.1%
- OAK in April76.4%
- OAK in May76.1%
- OAK in June69.7%
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.