Route on-time record
MSY to ORD: most on-time flights and the best time to fly
New Orleans (Louis Armstrong New Orleans International Airport) to Chicago (Chicago O'Hare International Airport). 2,384 nonstop flights in Jun 2025 to May 2026, 79% arrived within 15 minutes and 2.0% were cancelled. The most reliable flight number was United 2488 at 7:00 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
MSY → ORD
New Orleans to Chicago: 2,384 nonstop flights a year
On time (12 months)
79%
Cancelled
2.0%
avg delay 19 min
Best time to leave
Before 9 AM
86% on time vs 61% 6 to 9 PM
Most reliable airline
United
82% chance on time
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 2488
7:00 AM → 9:39 AM2h 39m nonstop
Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as United 1580; its record covers all of them.
91%
chance on time
- On time (history)
- 94%
- Cancelled
- 2.6%
- Avg arrival delay
- 7 min
- Arrived on time 94% of the time (111 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 86% on time; 6 to 9 PM: 61%).
Moderate track record · 111 flights
Find United 2488 fares Opens this date on Aviasales#2 · United 2779
6:30 AM → 9:14 AM2h 44m nonstop
Local times, typical schedule. Last flown 2026-05-31.
87%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 1 min
- Arrived on time 100% of the time (11 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 86% on time; 6 to 9 PM: 61%).
- Short track record (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find United 2779 fares Opens this date on Aviasales#3 · Envoy 3722 · sold as American Eagle
6:47 AM → 9:33 AM2h 46m nonstop
Local times, typical schedule. Last flown 2026-05-31.
86%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 0 min
- Arrived on time 100% of the time (10 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 86% on time; 6 to 9 PM: 61%).
- Short track record (10 flights), so its score leans on the airline's record at this hour.
Limited track record · 10 flights
Find 6:47 AM flight fares Opens this date on Aviasales#4 · United 1677
10:36 AM → 1:15 PM2h 39m nonstop
Local times, typical schedule. Last flown 2026-03-28.
85%
chance on time
- On time (history)
- 83%
- Cancelled
- 0.0%
- Avg arrival delay
- 15 min
- Arrived on time 83% of the time (23 flights, Jun 2025 to May 2026).
- Short track record (23 flights), so its score leans on the airline's record at this hour.
Limited track record · 23 flights
Find United 1677 fares Opens this date on Aviasales#5 · American 2743
7:15 AM → 9:55 AM2h 40m nonstop
Local times, typical schedule. Last flown 2026-05-20.
82%
chance on time
- On time (history)
- 81%
- Cancelled
- 0.0%
- Avg arrival delay
- 13 min
- Arrived on time 81% of the time (48 flights, Jun 2025 to May 2026).
- Never cancelled in 48 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 86% on time; 6 to 9 PM: 61%).
- Short track record (48 flights), so its score leans on the airline's record at this hour.
Limited track record · 48 flights
Find American 2743 fares Opens this date on Aviasales#6 · Republic 4748 · sold as American Eagle, Delta Connection or United Express
12:15 PM → 3:04 PM2h 49m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Republic 3566; its record covers all of them.
81%
chance on time
- On time (history)
- 83%
- Cancelled
- 0.0%
- Avg arrival delay
- 17 min
- Arrived on time 83% of the time (35 flights, Jun 2025 to May 2026).
- Never cancelled in 36 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 (35 flights), so its score leans on the airline's record at this hour.
Limited track record · 35 flights
Find 12:15 PM flight fares Opens this date on Aviasales#7 · Republic 3507 · sold as American Eagle, Delta Connection or United Express
10:25 AM → 1:15 PM2h 50m nonstop
Local times, typical schedule. Last flown 2026-05-31.
81%
chance on time
- On time (history)
- 82%
- Cancelled
- 0.0%
- Avg arrival delay
- 55 min
- Arrived on time 82% of the time (11 flights, Jun 2025 to May 2026).
- 96% 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 10:25 AM flight fares Opens this date on Aviasales#8 · Envoy 3593 · sold as American Eagle
3:50 PM → 6:41 PM2h 51m nonstop
Local times, typical schedule. Last flown 2026-05-20.
80%
chance on time
- On time (history)
- 83%
- Cancelled
- 2.7%
- Avg arrival delay
- 13 min
- Arrived on time 83% of the time (35 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.
- 65% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (35 flights), so its score leans on the airline's record at this hour.
Limited track record · 35 flights
Find 3:50 PM flight fares Opens this date on Aviasales#9 · United 2770
2:01 PM → 4:46 PM2h 45m nonstop
Local times, typical schedule. Last flown 2026-05-31.
78%
chance on time
- On time (history)
- 82%
- Cancelled
- 0.0%
- Avg arrival delay
- 7 min
- Arrived on time 82% of the time (11 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 (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find United 2770 fares Opens this date on Aviasales#10 · Envoy 4152 · sold as American Eagle
11:39 AM → 2:20 PM2h 41m nonstop
Local times, typical schedule. Last flown 2026-05-20.
78%
chance on time
- On time (history)
- 77%
- Cancelled
- 1.2%
- Avg arrival delay
- 15 min
- Arrived on time 77% of the time (84 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.
- 57% of its delay minutes came from the plane arriving late from an earlier flight.
Moderate track record · 84 flights
Find 11:39 AM flight fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- United Airlines82%
842 flights · 83% on time as flown · 1.2% cancel
- Envoy Air (sold as American Eagle)81%
466 flights · 82% on time as flown · 1.8% cancel
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)77%
85 flights · 78% on time as flown · 1.3% cancel
- Republic Airways (sold as American Eagle, Delta Connection or United Express)77%
365 flights · 79% on time as flown · 2.3% cancel
- American Airlines73%
382 flights · 73% on time as flown · 2.1% cancel
- Spirit Airlines70%
233 flights · 72% on time as flown · 4.4% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM86%
610 flights · avg delay 19 min
- 9 AM to noon81%
711 flights · avg delay 16 min
- Noon to 3 PM76%
654 flights · avg delay 20 min
- 3 to 6 PM73%
335 flights · avg delay 18 min
- 6 to 9 PM61%
74 flights · avg delay 32 min
Best day: Tuesday (85%). Worst: Sunday (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
- Late-arriving aircraft36%
- Airline (crew, maintenance, boarding)30%
- Air traffic control and airport volume29%
- Severe weather5%
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
MSY to ORD questions
- What time of day is best to fly MSY to ORD?
- Before 9 AM: 86% of flights arrived on time, against 61% for departures 6 to 9 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 MSY to ORD?
- United, with a season-adjusted 82% chance of operating and arriving on time over 842 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 MSY to ORD?
- July (72% on time); the best was September (87%), 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 MSY
- ORD to MSY (return)
- MSY to ATL 82%
- MSY to IAH 82%
- MSY to DFW 72%
- MSY to MCO 77%
- MSY to DAL 78%
- MSY to HOU 76%
- MSY to DEN 80%
- MSY to AUS 78%
- MSY to DCA 71%
- MSY to CLT 83%
- MSY to MIA 79%
- MSY to LAX 80%
Live status: FAA delays and ground stops