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Route on-time record

ORD to SNA: most on-time flights and the best time to fly

Chicago (Chicago O'Hare International Airport) to Santa Ana (John Wayne Orange County International Airport). 2,238 nonstop flights in Jun 2025 to May 2026, 76% arrived within 15 minutes and 1.0% were cancelled. The most reliable flight number was United 308 at 7:54 PM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

ORD → SNA

Chicago to Santa Ana: 2,238 nonstop flights a year

On time (12 months)

76%

Cancelled

1.0%

avg delay 14 min

Best time to leave

Before 9 AM

84% on time vs 68% 3 to 6 PM

Most reliable airline

American

75% chance on time

Check ORD to SNA fares

Lowest nonstop fare seen in the next two months: $200 (United 308 on 2026-11-16). Fares open on our travel partner (Aviasales). Pick the flight number you chose here.

Most reliable nonstop flights

Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.

  1. #1 · United 308

    7:54 PM → 10:35 PM4h 41m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    83%

    chance on time

    On time (history)
    85%
    Cancelled
    0.0%
    Avg arrival delay
    5 min
    • Arrived on time 85% of the time (132 flights, Jun 2025 to May 2026).
    • Never cancelled in 137 scheduled flights.
    • Departs inside ORD's trouble window: 44% of its 243 ground stops and delay programs started between 2 PM and 8 PM.

    Moderate track record · 132 flights

    Find United 308 fares Opens this date on Aviasales

  2. #2 · American 2679

    8:15 AM → 10:41 AM4h 26m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 2285; its record covers all of them.

    82%

    chance on time

    On time (history)
    84%
    Cancelled
    1.7%
    Avg arrival delay
    10 min
    • Arrived on time 84% of the time (281 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 84% on time; 3 to 6 PM: 68%).
    • Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).

    Strong track record · 281 flights

    Find American 2679 fares Opens this date on Aviasales

  3. #3 · United 2315

    7:40 PM → 10:26 PM4h 46m nonstop

    Local times, typical schedule. Last flown 2026-03-27.

    81%

    chance on time

    On time (history)
    89%
    Cancelled
    0.0%
    Avg arrival delay
    5 min
    • Arrived on time 89% of the time (18 flights, Jun 2025 to May 2026).
    • Departs inside ORD's trouble window: 44% of its 243 ground stops and delay programs started between 2 PM and 8 PM.
    • Short track record (18 flights), so its score leans on the airline's record at this hour.

    Limited track record · 18 flights

    Find United 2315 fares Opens this date on Aviasales

  4. #4 · United 2044

    8:50 AM → 11:31 AM4h 41m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as United 1304; its record covers all of them.

    78%

    chance on time

    On time (history)
    77%
    Cancelled
    0.0%
    Avg arrival delay
    12 min
    • Arrived on time 77% of the time (164 flights, Jun 2025 to May 2026).
    • Never cancelled in 165 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 84% on time; 3 to 6 PM: 68%).
    • Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).

    Moderate track record · 164 flights

    Find United 2044 fares Opens this date on Aviasales

  5. #5 · American 519

    5:04 PM → 7:31 PM4h 27m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    75%

    chance on time

    On time (history)
    77%
    Cancelled
    1.4%
    Avg arrival delay
    21 min
    • Arrived on time 77% of the time (70 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (3 to 6 PM: 68% on time; Before 9 AM: 84%).
    • Departs inside ORD's trouble window: 44% of its 243 ground stops and delay programs started between 2 PM and 8 PM.

    Moderate track record · 70 flights

    Find American 519 fares Opens this date on Aviasales

  6. #6 · American 2640

    11:50 AM → 2:14 PM4h 24m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 2908; its record covers all of them.

    73%

    chance on time

    On time (history)
    76%
    Cancelled
    0.0%
    Avg arrival delay
    9 min
    • Arrived on time 76% of the time (55 flights, Jun 2025 to May 2026).
    • Never cancelled in 55 scheduled flights.
    • Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).
    • Short track record (55 flights), so its score leans on the airline's record at this hour.

    Limited track record · 55 flights

    Find American 2640 fares Opens this date on Aviasales

  7. #7 · American 1179

    6:54 PM → 9:39 PM4h 33m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    72%

    chance on time

    On time (history)
    74%
    Cancelled
    3.2%
    Avg arrival delay
    16 min
    • Arrived on time 74% of the time (336 flights, Jun 2025 to May 2026).
    • Cancelled 3.2% of the time (11 of 349).
    • Departs inside ORD's trouble window: 44% of its 243 ground stops and delay programs started between 2 PM and 8 PM.

    Strong track record · 336 flights

    Find American 1179 fares Opens this date on Aviasales

  8. #8 · American 2212

    10:03 AM → 12:38 PM4h 35m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    70%

    chance on time

    On time (history)
    70%
    Cancelled
    1.2%
    Avg arrival delay
    19 min
    • Arrived on time 70% of the time (242 flights, Jun 2025 to May 2026).
    • Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).

    Strong track record · 242 flights

    Find American 2212 fares Opens this date on Aviasales

  9. #9 · United 1317

    4:05 PM → 6:46 PM4h 42m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    70%

    chance on time

    On time (history)
    70%
    Cancelled
    0.7%
    Avg arrival delay
    21 min
    • Arrived on time 70% of the time (142 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (3 to 6 PM: 68% on time; Before 9 AM: 84%).
    • Departs inside ORD's trouble window: 44% of its 243 ground stops and delay programs started between 2 PM and 8 PM.

    Moderate track record · 142 flights

    Find United 1317 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • American Airlines75%

    1,198 flights · 76% on time as flown · 1.6% cancel

  • United Airlines75%

    1,040 flights · 75% on time as flown · 0.3% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

  • Before 9 AM84%

    557 flights · avg delay 10 min

  • 9 AM to noon73%

    556 flights · avg delay 16 min

  • Noon to 3 PM71%

    91 flights · avg delay 16 min

  • 3 to 6 PM68%

    379 flights · avg delay 20 min

  • 6 to 9 PM76%

    655 flights · avg delay 13 min

Best day: Tuesday (84%). Worst: Sunday (77%).

On time by month

All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.

J
77
F
80
M
81
A
81
M
81
J
76
J
74
A
78
S
81
O
83
N
84
D
85

What delays this route

  • Late-arriving aircraft40%
  • Airline (crew, maintenance, boarding)32%
  • Air traffic control and airport volume22%
  • Severe weather6%

Share of delay minutes by the cause airlines report to the US DOT.

Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure

ORD to SNA questions

What time of day is best to fly ORD to SNA?
Before 9 AM: 84% of flights arrived on time, against 68% for departures 3 to 6 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
Which airline is most on time from ORD to SNA?
American, with a season-adjusted 75% chance of operating and arriving on time over 1,198 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
What is the worst month for delays on ORD to SNA?
July (74% on time); the best was December (85%), averaged over Jun 2023 to May 2026.
Is this a prediction for my flight?
No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.

More routes from ORD

Live status: FAA delays and ground stops