Route on-time record
BHM to ORD: most on-time flights and the best time to fly
Birmingham (Birmingham-Shuttlesworth International Airport) to Chicago (Chicago O'Hare International Airport). 1,157 nonstop flights in Jun 2025 to May 2026, 77% arrived within 15 minutes and 1.4% were cancelled. The most reliable flight number was Envoy 4029 at 6:33 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
BHM → ORD
Birmingham to Chicago: 1,157 nonstop flights a year
On time (12 months)
77%
Cancelled
1.4%
avg delay 19 min
Best time to leave
Before 9 AM
86% on time vs 59% 3 to 6 PM
Most reliable airline
Republic
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 · Envoy 4029 · sold as American Eagle
6:33 AM → 9:00 AM2h 27m nonstop
Local times, typical schedule. Last flown 2026-05-20.
87%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 9 min
- Arrived on time 91% of the time (44 flights, Jun 2025 to May 2026).
- Never cancelled in 44 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 86% on time; 3 to 6 PM: 59%).
- Short track record (44 flights), so its score leans on the airline's record at this hour.
Limited track record · 44 flights
Find 6:33 AM flight fares Opens this date on Aviasales#2 · Envoy 4181 · sold as American Eagle
6:16 AM → 8:45 AM2h 29m nonstop
Local times, typical schedule. Last flown 2026-05-31.
86%
chance on time
- On time (history)
- 89%
- Cancelled
- 1.4%
- Avg arrival delay
- 6 min
- Arrived on time 89% of the time (70 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 86% on time; 3 to 6 PM: 59%).
Moderate track record · 70 flights
Find 6:16 AM flight fares Opens this date on Aviasales#3 · Envoy 3465 · sold as American Eagle
11:48 AM → 2:10 PM2h 22m nonstop
Local times, typical schedule. Last flown 2026-05-20.
83%
chance on time
- On time (history)
- 86%
- Cancelled
- 0.0%
- Avg arrival delay
- 9 min
- Arrived on time 86% 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 11:48 AM flight fares Opens this date on Aviasales#4 · Envoy 3485 · sold as American Eagle
7:02 AM → 9:25 AM2h 23m nonstop
Local times, typical schedule. Last flown 2026-04-06.
79%
chance on time
- On time (history)
- 79%
- Cancelled
- 3.3%
- Avg arrival delay
- 21 min
- Arrived on time 79% of the time (29 flights, Jun 2025 to May 2026).
- Cancelled 3.3% of the time (1 of 30).
- Leaves in this route's most on-time window (Before 9 AM: 86% on time; 3 to 6 PM: 59%).
- Short track record (29 flights), so its score leans on the airline's record at this hour.
Limited track record · 29 flights
Find 7:02 AM flight fares Opens this date on Aviasales#5 · Envoy 3971 · sold as American Eagle
12:16 PM → 2:38 PM2h 22m nonstop
Local times, typical schedule. Last flown 2026-05-31.
78%
chance on time
- On time (history)
- 82%
- Cancelled
- 0.0%
- Avg arrival delay
- 9 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 12:16 PM flight fares Opens this date on Aviasales#6 · Envoy 3619 · sold as American Eagle
10:36 AM → 12:53 PM2h 17m nonstop
Local times, typical schedule. Last flown 2026-04-06.
72%
chance on time
- On time (history)
- 67%
- Cancelled
- 2.2%
- Avg arrival delay
- 26 min
- Arrived on time 67% of the time (45 flights, Jun 2025 to May 2026).
- Short track record (45 flights), so its score leans on the airline's record at this hour.
Limited track record · 45 flights
Find 10:36 AM flight fares Opens this date on Aviasales#7 · Envoy 3472 · sold as American Eagle
5:37 PM → 7:59 PM2h 22m nonstop
Local times, typical schedule. Last flown 2026-04-06.
65%
chance on time
- On time (history)
- 63%
- Cancelled
- 6.7%
- Avg arrival delay
- 26 min
- Arrived on time 63% of the time (27 flights, Jun 2025 to May 2026).
- Cancelled 6.7% of the time (2 of 30).
- Leaves in this route's least on-time window (3 to 6 PM: 59% on time; Before 9 AM: 86%).
- Lands inside ORD's trouble window: 44% of its 243 ground stops and delay programs started between 2 PM and 8 PM.
Limited track record · 27 flights
Find 5:37 PM flight fares Opens this date on Aviasales#8 · SkyWest 4744 · sold as United Express, Delta Connection, American Eagle or Alaska
6:20 PM → 8:40 PM2h 20m nonstop
Local times, typical schedule. Last flown 2026-05-19.
61%
chance on time
- On time (history)
- 71%
- Cancelled
- 10.5%
- Avg arrival delay
- 60 min
- Arrived on time 71% of the time (17 flights, Jun 2025 to May 2026).
- Short track record (17 flights), so its score leans on the airline's record at this hour.
Limited track record · 17 flights
Find 6:20 PM flight fares Opens this date on Aviasales#9 · SkyWest 6435 · sold as United Express, Delta Connection, American Eagle or Alaska
5:44 PM → 8:17 PM2h 33m nonstop
Local times, typical schedule. Last flown 2026-05-20.
48%
chance on time
- On time (history)
- 44%
- Cancelled
- 2.3%
- Avg arrival delay
- 69 min
- Arrived on time 44% of the time (43 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (3 to 6 PM: 59% on time; Before 9 AM: 86%).
- Short track record (43 flights), so its score leans on the airline's record at this hour.
Limited track record · 43 flights
Find 5:44 PM flight fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Republic Airways (sold as American Eagle, Delta Connection or United Express)82%
278 flights · 85% on time as flown · 1.2% cancel
- Envoy Air (sold as American Eagle)77%
759 flights · 78% on time as flown · 1.3% cancel
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)63%
117 flights · 56% on time as flown · 1.9% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM86%
433 flights · avg delay 12 min
- 9 AM to noon81%
320 flights · avg delay 15 min
- Noon to 3 PM85%
84 flights · avg delay 14 min
- 3 to 6 PM59%
259 flights · avg delay 34 min
- 6 to 9 PM64%
61 flights · avg delay 34 min
Best day: Tuesday (83%). Worst: Sunday (74%).
Smarter routing
Nearby airports that run more on time
BHM → MDW 83% chance on time
Birmingham-Shuttlesworth International Airport to Chicago Midway International Airport · 509 flights a year · 15 mi from your airports · yours: 76%
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)27%
- Air traffic control and airport volume26%
- Severe weather11%
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
BHM to ORD questions
- What time of day is best to fly BHM to ORD?
- Before 9 AM: 86% of flights arrived on time, against 59% 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 BHM to ORD?
- Republic, with a season-adjusted 82% chance of operating and arriving on time over 278 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 BHM to ORD?
- May (71% on time); the best was October (84%), 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 BHM
- ORD to BHM (return)
- BHM to ATL 88%
- BHM to DFW 79%
- BHM to CLT 84%
- BHM to DEN 84%
- BHM to DCA 77%
- BHM to DAL 81%
- BHM to MCO 79%
- BHM to MIA 85%
- BHM to PHL 83%
- BHM to MDW 84%
- BHM to HOU 85%
- BHM to BNA 75%
Live status: FAA delays and ground stops