Route · ORD → SNA · 2020–2025 BTS data
Chicago to Santa Ana
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), ORD to SNA (Chicago to Santa Ana) ranks #949 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 83.2%
- On-time
- +4.2 pts
- vs US avg
- 60 min
- Delay when late
- 11,655
- Flights
- #949 of 4927
- Corpus placement
Cancelled
0.5%
Best Month
May 2025 91%
Worst Month
May 2024 70%
Distance
1,726 mi
Carriers
2
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 177 | 41 | 1 | 4 | AA,UA |
| Nov 2025 | 173 | 32 | 6 | 1 | UA,AA |
| Oct 2025 | 208 | 59 | 0 | 0 | AA,UA |
| Sep 2025 | 190 | 43 | 0 | 1 | UA,AA |
| Aug 2025 | 206 | 47 | 4 | 4 | AA,UA |
| Jul 2025 | 205 | 50 | 2 | 2 | AA,UA |
| Jun 2025 | 202 | 44 | 1 | 2 | AA,UA |
| May 2025 | 210 | 18 | 1 | 4 | AA,UA |
| Apr 2025 | 195 | 34 | 1 | 0 | UA,AA |
| Mar 2025 | 176 | 29 | 0 | 2 | AA,UA |
| Feb 2025 | 160 | 33 | 0 | 1 | AA,UA |
| Jan 2025 | 179 | 30 | 0 | 2 | AA,UA |
| Dec 2024 | 170 | 23 | 0 | 2 | AA,UA |
| Nov 2024 | 159 | 24 | 0 | 0 | UA,AA |
| Oct 2024 | 166 | 21 | 0 | 0 | UA,AA |
| Sep 2024 | 162 | 35 | 0 | 0 | UA,AA |
| Aug 2024 | 168 | 40 | 0 | 3 | AA,UA |
| Jul 2024 | 171 | 46 | 1 | 0 | AA,UA |
| Jun 2024 | 172 | 46 | 0 | 2 | AA,UA |
| May 2024 | 210 | 63 | 1 | 3 | AA,UA |
| Apr 2024 | 204 | 27 | 0 | 1 | AA,UA |
| Mar 2024 | 197 | 25 | 1 | 3 | AA,UA |
| Feb 2024 | 164 | 23 | 1 | 1 | AA,UA |
| Jan 2024 | 176 | 41 | 1 | 2 | AA,UA |
ORD–SNA seasonal on-time pattern
Best: March (86.5%) · weakest: June (77.8%)
Strongest calendar month
March
86.5% on-time · ~167 flights/mo
Busiest calendar month
May
~190 flights/mo avg
Weakest calendar month
June
77.8% on-time · ~184 flights/mo
Cancellation Rate
0.5%
21 of 4,400 flights
Diversion Rate
0.9%
40 of 4,400 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
ORD - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
ORD on-time profileSNA - Santa Ana
Full on-time, delay-cause, and seasonal performance for Santa Ana, CA.
SNA on-time profileCompare the two airports
See ORD and SNA side by side on delays, cancellations, and reliability.
Compare ORD vs SNAOrigin-hub reliability standing
Mid-pack among ORD departures
From ORD, this corridor sits with 147 other 75–85% on-time routes out of 168 tracked departures, not the hub's reliability leaders (10 at ≥85%) and not the softest ( 11 below 75%). Destination: Santa Ana · fleet on-time rank #1884 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to ORD–SNA.
Routes with a similar on-time rate
What the Data Says About ORD to SNA
Bureau of Transportation Statistics records show Chicago to Santa Ana (ORD to SNA) running a 83.2% on-time rate over 11,655 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 59.6 minutes. The 1,726-mile corridor is served by 2 carriers, and over the last 24 months 0.5% of 4,400 flights were cancelled, 0.9% diverted.
The monthly split is wide on this route: May 2025 posted the strongest performance at 91% on-time, while May 2024 came in at just 70% - a 21-point swing worth factoring into travel timing.
On the multi-year calendar, ORD–SNA peaks in March at 86.5% on-time while May carries the heaviest traffic (~190 flights per month) ; the softest month is June at 77.8%, a 8.7-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does ORD to SNA rank among US routes by traffic? ▼
How often are flights delayed from ORD to SNA? ▼
What is the cancellation rate for ORD to SNA? ▼
How far is the flight from ORD to SNA? ▼
When is the best time to fly from ORD to SNA? ▼
Airports on this route
Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Using ORD–SNA data
ORD–SNA runs 4.2 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.
- Compare ORD and SNA airport profiles: delay causes and top routes differ even on the same corridor. ORD airport
- If your dates flex, March (86.5% on-time) beats June (77.8%) on this corridor. Seasonal chart
- 4 other routes post a similar 83.2% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.