Route on-time record
JAX to ORD: most on-time flights and the best time to fly
Jacksonville (Jacksonville International Airport) to Chicago (Chicago O'Hare International Airport). 2,009 nonstop flights in Jun 2025 to May 2026, 78% arrived within 15 minutes and 1.7% were cancelled. The most reliable flight number was United 1733 at 8:00 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
JAX → ORD
Jacksonville to Chicago: 2,009 nonstop flights a year
On time (12 months)
78%
Cancelled
1.7%
avg delay 22 min
Best time to leave
Before 9 AM
88% on time vs 60% 3 to 6 PM
Most reliable airline
American
77% chance on time
Lowest nonstop fare seen in the next two months: $142 (American 764 on 2026-10-21). 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 · United 1733
8:00 AM → 9:50 AM2h 50m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as United 411; its record covers all of them.
88%
chance on time
- On time (history)
- 89%
- Cancelled
- 1.0%
- Avg arrival delay
- 14 min
- Arrived on time 89% of the time (297 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 88% on time; 3 to 6 PM: 60%).
Strong track record · 297 flights
Find United 1733 fares Opens this date on Aviasales#2 · Republic 4606 · sold as American Eagle, Delta Connection or United Express
5:45 AM → 7:49 AM3h 04m nonstop
Local times, typical schedule. Last flown 2026-05-20.
86%
chance on time
- On time (history)
- 95%
- Cancelled
- 2.3%
- Avg arrival delay
- 7 min
- Arrived on time 95% of the time (42 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 88% on time; 3 to 6 PM: 60%).
- Short track record (42 flights), so its score leans on the airline's record at this hour.
Limited track record · 42 flights
Find 5:45 AM flight fares Opens this date on Aviasales#3 · United 2665
11:22 AM → 1:13 PM2h 51m nonstop
Local times, typical schedule. Last flown 2026-05-18.
81%
chance on time
- On time (history)
- 87%
- Cancelled
- 0.0%
- Avg arrival delay
- 46 min
- Arrived on time 87% of the time (15 flights, Jun 2025 to May 2026).
- Short track record (15 flights), so its score leans on the airline's record at this hour.
Limited track record · 15 flights
Find United 2665 fares Opens this date on Aviasales#4 · Republic 4798 · sold as American Eagle, Delta Connection or United Express
7:14 PM → 9:15 PM3h 01m nonstop
Local times, typical schedule. Last flown 2026-05-20.
81%
chance on time
- On time (history)
- 88%
- Cancelled
- 2.3%
- Avg arrival delay
- 10 min
- Arrived on time 88% of the time (43 flights, Jun 2025 to May 2026).
- Short track record (43 flights), so its score leans on the airline's record at this hour.
Limited track record · 43 flights
Find 7:14 PM flight fares Opens this date on Aviasales#5 · United 1269
6:00 AM → 7:51 AM2h 51m nonstop
Local times, typical schedule. Last flown 2026-03-28.
81%
chance on time
- On time (history)
- 83%
- Cancelled
- 0.0%
- Avg arrival delay
- 29 min
- Arrived on time 83% of the time (18 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 88% on time; 3 to 6 PM: 60%).
- Short track record (18 flights), so its score leans on the airline's record at this hour.
Limited track record · 18 flights
Find United 1269 fares Opens this date on Aviasales#6 · American 2102
6:50 AM → 8:39 AM2h 49m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 2100; its record covers all of them.
80%
chance on time
- On time (history)
- 84%
- Cancelled
- 7.2%
- Avg arrival delay
- 30 min
- Arrived on time 84% of the time (116 flights, Jun 2025 to May 2026).
- Cancelled 7.2% of the time (9 of 125).
- Leaves in this route's most on-time window (Before 9 AM: 88% on time; 3 to 6 PM: 60%).
Moderate track record · 116 flights
Find American 2102 fares Opens this date on Aviasales#7 · United 1239
11:32 AM → 1:23 PM2h 51m nonstop
Local times, typical schedule. Last flown 2026-04-29.
80%
chance on time
- On time (history)
- 82%
- Cancelled
- 0.7%
- Avg arrival delay
- 16 min
- Arrived on time 82% of the time (151 flights, Jun 2025 to May 2026).
Moderate track record · 151 flights
Find United 1239 fares Opens this date on Aviasales#8 · Envoy 3679 · sold as American Eagle
1:28 PM → 3:24 PM2h 56m nonstop
Local times, typical schedule. Last flown 2026-05-20.
77%
chance on time
- On time (history)
- 81%
- Cancelled
- 0.0%
- Avg arrival delay
- 13 min
- Arrived on time 81% of the time (43 flights, Jun 2025 to May 2026).
- Never cancelled in 44 scheduled flights.
- Lands inside ORD's trouble window: 44% of its 243 ground stops and delay programs started between 2 PM and 8 PM.
- Short track record (43 flights), so its score leans on the airline's record at this hour.
Limited track record · 43 flights
Find 1:28 PM flight fares Opens this date on Aviasales#9 · SkyWest 5452 · sold as United Express, Delta Connection, American Eagle or Alaska
11:21 AM → 1:15 PM2h 54m nonstop
Local times, typical schedule. Last flown 2026-05-31.
76%
chance on time
- On time (history)
- 73%
- Cancelled
- 0.0%
- Avg arrival delay
- 26 min
- Arrived on time 73% of the time (11 flights, Jun 2025 to May 2026).
- 71% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find 11:21 AM flight fares Opens this date on Aviasales#10 · Republic 4740 · sold as American Eagle, Delta Connection or United Express
1:08 PM → 2:58 PM2h 50m nonstop
Local times, typical schedule. Last flown 2026-05-31.
76%
chance on time
- On time (history)
- 80%
- Cancelled
- 0.0%
- Avg arrival delay
- 6 min
- Arrived on time 80% of the time (10 flights, Jun 2025 to May 2026).
- Lands inside ORD's trouble window: 44% of its 243 ground stops and delay programs started between 2 PM and 8 PM.
- Short track record (10 flights), so its score leans on the airline's record at this hour.
Limited track record · 10 flights
Find 1:08 PM flight fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- American Airlines77%
460 flights · 79% on time as flown · 2.4% cancel
- United Airlines76%
893 flights · 77% on time as flown · 0.7% cancel
- Envoy Air (sold as American Eagle)76%
241 flights · 76% on time as flown · 0.9% cancel
- Republic Airways (sold as American Eagle, Delta Connection or United Express)75%
298 flights · 79% on time as flown · 3.7% cancel
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)75%
116 flights · 75% on time as flown · 1.7% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM88%
692 flights · avg delay 16 min
- 9 AM to noon83%
409 flights · avg delay 17 min
- Noon to 3 PM76%
302 flights · avg delay 19 min
- 3 to 6 PM60%
444 flights · avg delay 37 min
- 6 to 9 PM70%
160 flights · avg delay 20 min
Best day: Tuesday (85%). Worst: Friday (79%).
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.
What delays this route
- Airline (crew, maintenance, boarding)35%
- Late-arriving aircraft33%
- Air traffic control and airport volume30%
- Severe weather3%
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
JAX to ORD questions
- What time of day is best to fly JAX to ORD?
- Before 9 AM: 88% of flights arrived on time, against 60% 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 JAX to ORD?
- American, with a season-adjusted 77% chance of operating and arriving on time over 460 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 JAX to ORD?
- July (76% on time); the best was September (88%), 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 JAX
- ORD to JAX (return)
- JAX to ATL 84%
- JAX to CLT 81%
- JAX to DFW 76%
- JAX to BOS 74%
- JAX to MIA 80%
- JAX to PHL 78%
- JAX to DCA 71%
- JAX to BWI 80%
- JAX to EWR 79%
- JAX to JFK 74%
- JAX to BNA 83%
- JAX to DEN 86%
Live status: FAA delays and ground stops