Carrier route record
AAORD→SNA
American Airlines · Chicago to Santa Ana
- Flights
- 1,172
- Period
- July 2025 to June 2026
- Share of route
- 53%
- Carriers
- 2
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with American Airlines.
American on ORD to SNA sits in the middle of the pack with a B. Close to three flights in four arrive on time by the DOT's definition, 2 points worse than the national rate of 77.6%. The late ones land about an hour behind schedule. That rests on 1,172 flights, with a median arrival 4 minutes early.
The US average over the same twelve months is 77.6%, so there is little to separate American on ORD to SNA from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
75.4%
Arrivals under 15 minutes late, of 1,147 completed flights
Avg delay
62 min
Across delayed arrivals only, not all flights
Cancelled
1.79%
National rate is 1.81%
Whole route
75.3%
Every carrier on ORD to SNA, 2,212 flights
These figures cover 1,172 flights between July 2025 and June 2026. The median arrival is 4 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
Carrier by carrier
American against every carrier on ORD to SNA
American flew 1,172 of the 2,212 flights on ORD to SNA, most of the route. Its 75.4% on time is about level with the route as a whole at 75.3%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from American at 75.4% to United at 75.2%.
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 |
|---|---|---|---|---|---|
| American Airlines (this page) | 1,172 | 75.4% | 62 min | 1.79% | B |
| United Airlines | 1,040 | 75.2% | 48 min | 0.29% | B+ |
Flight by flight
American flight numbers on ORD to SNA
Departure window
When American runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 17 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–8am113 flights86.5%
- 8am–11am381 flights79.3%
- 11am–2pm319 flights69.2%
- 2pm–5pm—
- 5pm–8pm357 flights73.2%
- 8pm–5am2 flights—
Scale runs 60% to 90%. Rows with fewer than 30 flights show a dash.
The weak window here is the middle of the day, not the evening: 11am–2pm runs 69.2% on time against 86.5% for 5am–8am. That shape usually means a departure bank rather than an accumulating delay, so the recovery later in the afternoon is real rather than noise. The 8am–11am window is the busiest, with 381 flights scheduled in it.
Across the year
American on ORD to SNA through the year
November is the best month on the calendar at 85.7% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. October was the busiest month here, with 119 flights.
Across the week, Tuesday is the strongest day at 85.5% on time and Monday the weakest at 68.5%. 17 points is a smaller lever than departure hour, but it is free.
Delay causes
Why American runs late on this route
One category carries most of the weight here. Late-arriving aircraft accounts for 44% of the 18,000 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.
- 44%Late-arriving aircraft
- 31%Carrier
- 19%National Airspace System
- 6%Extreme weather
- 0%Security
44% 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 18,000 reported delay minutes here, that single category outweighs weather by 7 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 17,501 reported delay minutes.
The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 86.5% on time here.
Cancellations sit at 1.79% against a national 1.81%, which is ordinary. Diversions add another 0.34%.
Connections and stage length
What a delay here costs
7.5% of arrivals land an hour or more late, close to the national 8.1%. 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.
At 1,726 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.
The return leg runs 74.6% on time across 1,172 flights, within about a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
The sample behind these figures is 1,172 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
What to do with this
Booking American on ORD to SNA
Put together: the calendar is the biggest lever here, not the carrier or the hour. November runs 85.7% on time and April 67.4%, a swing of 18 points. If the dates move at all, move them out of April before you think about anything else. 1,147 completed flights over 12 months sit behind that.
Related
Where to go next
- ORD to SNA, every carrier
- American on SNA to ORD, the return leg
- United Airlines on ORD to SNA75.2%
- American Airlines network-wide record
- Chicago O'Hare International (ORD) delay statistics
- John Wayne Airport (SNA) delay statistics
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.04 million flight records
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.