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Tell FlyerIntel where and when you are flying. It will show how that route actually performs at that time of day and on that day of the week, what both airports are doing right now, and when to get to the airport.
ORD → SAN
Chicago to San Diego · departing 8:46 AM
ORD → SAN flights departing 5–9 AM arrive on time 87.0% of the time, against 74.2% across the whole day — your departure window is 12.8 points better than average for this route.
There is no day-by-hour view for ORD → SAN: only 44 of its weekday-and-hour slots have 120 or more flights, and a day-by-hour view needs 45.
Other times on ORD → SAN
Time of day
5–9 AM is among the most reliable times to leave on ORD → SAN: 87.0% on time.
- 5–9 AM87.0%
- 9 AM–12 PM76.7%
- 12–3 PM77.4%
- 3–6 PM69.5%
- 6–9 PM64.9%
- 9 PM–5 AM54.6%
Day of week
- Monday73.6%
- Tuesday78.2%
- Wednesday75.9%
- Thursday71.7%
- Friday69.7%
- Saturday78.7%
- Sunday72.3%
Bars start below the lowest figure so a real gap is visible; read the percentage, not the bar length. A time with too few flights to score is left unscored rather than guessed at.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – August 2026 · History describes what has happened on this route. It is not a prediction about your flight. Full route profile →
Which flight
Flights on ORD → SAN, the ones scheduled closest to 8:46 AM first.
Within 90 minutes of 8:46 AM, UA660 (usually 8:46 AM) has the best record: 86.0% on time and 0.00% cancelled over 621 flights, against 74.2% on time for ORD → SAN as a whole.
| Flight | Usually departs | On time | Cancelled |
|---|---|---|---|
| UA660United AirlinesLive map | 8:46 AM | 86.0% | 0.00% |
| AA2343American AirlinesLive map | 8:25 AM21 min away | 84.3% | 0.98% |
| AS1470Alaska AirlinesLive map | 8:20 AM26 min away | 76.1% | 1.29% |
| AA2131American AirlinesLive map | 10:05 AM79 min away | 76.3% | 0.60% |
| UA2428United AirlinesLive map | 7:00 AM106 min away | 93.9% | 0.56% |
| AS1447Alaska AirlinesLive map | 2:20 PM334 min away | 68.4% | 1.71% |
| AA1543American AirlinesLive map | 4:55 PM489 min away | 64.9% | 1.36% |
| AA1924American AirlinesLive map | 7:00 PM614 min away | 58.3% | 0.00% |
| AS1466Alaska AirlinesLive map | 7:59 PM673 min away | 52.3% | 5.35% |
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – August 2026 · “Usually departs” is the scheduled time each flight number most often had over the period; airlines retime flights, so confirm the time on your booking. Flight numbers with fewer than 90 operations on this route are left out. This is history, not a forecast for your flight.
When to get to the airport
A starting point for ORD, not a promise about your day.
2h 20m before your 8:46 AM departure
How this was worked out
- FlyerIntel cannot currently obtain live security wait times for ORD, so this figure does not account for the queue on the day.
- It does not include your journey to the airport, parking, or a shuttle from a remote lot.
- International departures, and travel with children, checked pets or special assistance, need more time.
Both airports right now
Aviation weather is not currently a factor.
Minimal operational impact. Conditions are not a notable factor for operations right now.
UpdatedAviation weather is not currently a factor.
Minimal operational impact. Conditions are not a notable factor for operations right now.
UpdatedSource: NOAA Aviation Weather Center · Conditions describe the airfield, not your flight, and change quickly.
Other ways to make this journey
Airport pairings serving Chicago to San Diego.
Who flies this route
Performance by the carrier that actually operates the flight.
| Carrier | Flights | On time | Cancelled | Median delay |
|---|---|---|---|---|
| United Airlines | 5,355 | 79.0% | 0.73% | -6 min |
| American Airlines | 3,959 | 69.5% | 1.21% | -1 min |
| Alaska Airlines | 862 | 68.7% | 2.55% | -3 min |