Route on-time record
ORD to GRR: most on-time flights and the best time to fly
Chicago (Chicago O'Hare International Airport) to Grand Rapids (Gerald R. Ford International Airport). 4,103 nonstop flights in Jun 2025 to May 2026, 69% arrived within 15 minutes and 2.7% were cancelled. The most reliable flight number was SkyWest 5425 at 7:05 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
ORD → GRR
Chicago to Grand Rapids: 4,103 nonstop flights a year
On time (12 months)
69%
Cancelled
2.7%
avg delay 25 min
Best time to leave
Before 9 AM
82% on time vs 58% after 9 PM
Most reliable airline
Republic
75% 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 · SkyWest 5425 · sold as United Express, Delta Connection, American Eagle or Alaska
7:05 AM → 9:22 AM1h 17m nonstop
Local times, typical schedule. Last flown 2026-05-31.
79%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 9 min
- Arrived on time 91% of the time (11 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 82% on time; After 9 PM: 58%).
- 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 (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find 7:05 AM flight fares Opens this date on Aviasales#2 · Republic 3491 · sold as American Eagle, Delta Connection or United Express
10:45 AM → 12:51 PM1h 06m nonstop
Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as Republic 3516, 3534; its record covers all of them.
77%
chance on time
- On time (history)
- 77%
- Cancelled
- 0.0%
- Avg arrival delay
- 17 min
- Arrived on time 77% of the time (75 flights, Jun 2025 to May 2026).
- Never cancelled in 75 scheduled flights.
- 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 · 75 flights
Find 10:45 AM flight fares Opens this date on Aviasales#3 · Republic 3485 · sold as American Eagle, Delta Connection or United Express
1:55 PM → 4:09 PM1h 14m nonstop
Local times, typical schedule. Last flown 2026-05-20.
77%
chance on time
- On time (history)
- 79%
- Cancelled
- 0.0%
- Avg arrival delay
- 22 min
- Arrived on time 79% of the time (14 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).
- 69% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (14 flights), so its score leans on the airline's record at this hour.
Limited track record · 14 flights
Find 1:55 PM flight fares Opens this date on Aviasales#4 · Envoy 3601 · sold as American Eagle
11:40 AM → 1:47 PM1h 07m nonstop
Local times, typical schedule. Last flown 2026-05-20.
76%
chance on time
- On time (history)
- 81%
- Cancelled
- 0.0%
- Avg arrival delay
- 10 min
- Arrived on time 81% of the time (37 flights, Jun 2025 to May 2026).
- Never cancelled in 37 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 (37 flights), so its score leans on the airline's record at this hour.
Limited track record · 37 flights
Find 11:40 AM flight fares Opens this date on Aviasales#5 · Envoy 4252 · sold as American Eagle
12:31 PM → 2:32 PM1h 01m nonstop
Local times, typical schedule. Last flown 2026-04-06.
76%
chance on time
- On time (history)
- 73%
- Cancelled
- 0.0%
- Avg arrival delay
- 35 min
- Arrived on time 73% of the time (26 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).
- 74% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (26 flights), so its score leans on the airline's record at this hour.
Limited track record · 26 flights
Find 12:31 PM flight fares Opens this date on Aviasales#6 · Envoy 3645 · sold as American Eagle
8:10 AM → 10:15 AM1h 05m nonstop
Local times, typical schedule. Last flown 2026-04-06.
75%
chance on time
- On time (history)
- 76%
- Cancelled
- 4.5%
- Avg arrival delay
- 22 min
- Arrived on time 76% of the time (21 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 82% on time; After 9 PM: 58%).
- Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).
- 67% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 21 flights
Find 8:10 AM flight fares Opens this date on Aviasales#7 · Envoy 4117 · sold as American Eagle
3:01 PM → 5:13 PM1h 12m nonstop
Local times, typical schedule. Last flown 2026-05-31.
74%
chance on time
- On time (history)
- 82%
- Cancelled
- 0.0%
- Avg arrival delay
- 13 min
- Arrived on time 82% of the time (11 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.
- 91% 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 3:01 PM flight fares Opens this date on Aviasales#8 · Envoy 3618 · sold as American Eagle
1:28 PM → 3:37 PM1h 09m nonstop
Local times, typical schedule. Last flown 2026-05-20.
74%
chance on time
- On time (history)
- 77%
- Cancelled
- 2.3%
- Avg arrival delay
- 22 min
- Arrived on time 77% of the time (43 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).
- 68% of its delay minutes came from the plane arriving late from an earlier flight.
- 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 · Envoy 3623 · sold as American Eagle
4:44 PM → 6:56 PM1h 12m nonstop
Local times, typical schedule. Last flown 2026-05-20.
74%
chance on time
- On time (history)
- 83%
- Cancelled
- 4.5%
- Avg arrival delay
- 7 min
- Arrived on time 83% of the time (42 flights, Jun 2025 to May 2026).
- Cancelled 4.5% of the time (2 of 44).
- 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 (42 flights), so its score leans on the airline's record at this hour.
Limited track record · 42 flights
Find 4:44 PM flight fares Opens this date on Aviasales#10 · SkyWest 6268 · sold as United Express, Delta Connection, American Eagle or Alaska
9:36 AM → 11:46 AM1h 10m nonstop
Local times, typical schedule. Last flown 2026-05-20.
73%
chance on time
- On time (history)
- 84%
- Cancelled
- 2.3%
- Avg arrival delay
- 14 min
- Arrived on time 84% of the time (43 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).
- 58% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (43 flights), so its score leans on the airline's record at this hour.
Limited track record · 43 flights
Find 9:36 AM 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)75%
669 flights · 77% on time as flown · 2.3% cancel
- Envoy Air (sold as American Eagle)72%
952 flights · 75% on time as flown · 3.5% cancel
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)66%
920 flights · 69% on time as flown · 3.3% cancel
- United Airlines65%
1,033 flights · 66% on time as flown · 1.4% cancel
- American Airlines56%
527 flights · 58% on time as flown · 3.4% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM82%
375 flights · avg delay 15 min
- 9 AM to noon75%
817 flights · avg delay 21 min
- Noon to 3 PM73%
733 flights · avg delay 22 min
- 3 to 6 PM69%
649 flights · avg delay 25 min
- 6 to 9 PM64%
843 flights · avg delay 29 min
- After 9 PM58%
686 flights · avg delay 32 min
Best day: Tuesday (77%). Worst: Friday (71%).
Smarter routing
Nearby airports that run more on time
MDW → GRR 75% chance on time
Chicago Midway International Airport to Gerald R. Ford International Airport · 928 flights a year · 15 mi from your airports · yours: 67%
ORD → AZO 72% chance on time
Chicago O'Hare International Airport to Kalamazoo/Battle Creek International Airport · 1,001 flights a year · 45 mi from your airports · yours: 67%
ORD → LAN 71% chance on time
Chicago O'Hare International Airport to Capital Region International Airport · 807 flights a year · 48 mi from your airports · yours: 67%
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 aircraft45%
- Airline (crew, maintenance, boarding)29%
- Air traffic control and airport volume17%
- Severe weather8%
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 GRR questions
- What time of day is best to fly ORD to GRR?
- Before 9 AM: 82% of flights arrived on time, against 58% for departures after 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 ORD to GRR?
- Republic, with a season-adjusted 75% chance of operating and arriving on time over 669 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 GRR?
- July (67% on time); the best was September (82%), 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
- GRR to ORD (return)
- ORD to LGA 67%
- ORD to BOS 68%
- ORD to LAX 74%
- ORD to DFW 70%
- ORD to DCA 69%
- ORD to MCO 73%
- ORD to ATL 74%
- ORD to MSP 69%
- ORD to DEN 74%
- ORD to IAH 75%
- ORD to EWR 69%
- ORD to DTW 71%
Live status: FAA delays and ground stops