Route on-time record

CMH to PHL: most on-time flights and the best time to fly

Columbus (John Glenn Columbus International Airport) to Philadelphia (Philadelphia International Airport). 1,337 nonstop flights in Jun 2025 to May 2026, 78% arrived within 15 minutes and 3.3% were cancelled. The most reliable flight number was Republic 4775 at 11:20 AM.

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

CMH → PHL

Columbus to Philadelphia: 1,337 nonstop flights a year

On time (12 months)

78%

Cancelled

3.3%

avg delay 18 min

Best time to leave

Before 9 AM

88% on time vs 61% 6 to 9 PM

Most reliable airline

Republic

84% chance on time

Check CMH to PHL fares

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 · Republic 4775 · sold as American Eagle, Delta Connection or United Express
11:20 AM → 12:57 PM1h 37m nonstop
Local times, typical schedule. Last flown 2026-05-20.
92%
chance on time
On time (history)
100%
Cancelled
0.0%
Avg arrival delay
0 min
- Arrived on time 100% of the time (38 flights, Jun 2025 to May 2026).
- Never cancelled in 38 scheduled flights.
- Short track record (38 flights), so its score leans on the airline's record at this hour.
Limited track record · 38 flights
Find 11:20 AM flight fares Opens this date on Aviasales
#2 · Republic 4801 · sold as American Eagle, Delta Connection or United Express
7:20 AM → 9:00 AM1h 40m nonstop
Local times, typical schedule. Last flown 2026-05-20.
88%
chance on time
On time (history)
92%
Cancelled
0.0%
Avg arrival delay
6 min
- Arrived on time 92% 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: 88% 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 7:20 AM flight fares Opens this date on Aviasales
#3 · Republic 4711 · sold as American Eagle, Delta Connection or United Express
8:04 AM → 9:45 AM1h 41m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Republic 4540; its record covers all of them.
86%
chance on time
On time (history)
86%
Cancelled
1.1%
Avg arrival delay
10 min
- Arrived on time 86% of the time (266 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 88% on time; 6 to 9 PM: 61%).
Strong track record · 266 flights
Find 8:04 AM flight fares Opens this date on Aviasales
#4 · Republic 4419 · sold as American Eagle, Delta Connection or United Express
5:00 PM → 6:43 PM1h 43m nonstop
Local times, typical schedule. Last flown 2026-05-19.
81%
chance on time
On time (history)
86%
Cancelled
2.3%
Avg arrival delay
10 min
- Arrived on time 86% of the time (43 flights, Jun 2025 to May 2026).
- Lands inside PHL's trouble window: 72% of its 95 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 5:00 PM flight fares Opens this date on Aviasales
#5 · PSA 5177 · sold as American Eagle
1:00 PM → 2:37 PM1h 37m nonstop
Local times, typical schedule. Last flown 2026-05-20.
81%
chance on time
On time (history)
91%
Cancelled
0.0%
Avg arrival delay
3 min
- Arrived on time 91% of the time (43 flights, Jun 2025 to May 2026).
- Never cancelled in 43 scheduled flights.
- Lands inside PHL's trouble window: 72% of its 95 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 1:00 PM flight fares Opens this date on Aviasales
#6 · American 2980
6:00 AM → 7:37 AM1h 37m nonstop
Local times, typical schedule. Last flown 2026-05-31.
80%
chance on time
On time (history)
79%
Cancelled
5.6%
Avg arrival delay
21 min
- Arrived on time 79% of the time (67 flights, Jun 2025 to May 2026).
- Cancelled 5.6% of the time (4 of 71).
- Leaves in this route's most on-time window (Before 9 AM: 88% on time; 6 to 9 PM: 61%).
Moderate track record · 67 flights
Find American 2980 fares Opens this date on Aviasales
#7 · American 2905
1:01 PM → 2:40 PM1h 39m nonstop
Local times, typical schedule. Last flown 2026-05-31.
75%
chance on time
On time (history)
90%
Cancelled
0.0%
Avg arrival delay
10 min
- Arrived on time 90% of the time (10 flights, Jun 2025 to May 2026).
- Lands inside PHL's trouble window: 72% of its 95 ground stops and delay programs started between 2 PM and 8 PM.
- 93% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (10 flights), so its score leans on the airline's record at this hour.
Limited track record · 10 flights
Find American 2905 fares Opens this date on Aviasales
#8 · PSA 5640 · sold as American Eagle
10:40 AM → 12:15 PM1h 35m nonstop
Local times, typical schedule. Last flown 2026-05-31.
74%
chance on time
On time (history)
70%
Cancelled
0.0%
Avg arrival delay
14 min
- Arrived on time 70% of the time (10 flights, Jun 2025 to May 2026).
- Short track record (10 flights), so its score leans on the airline's record at this hour.
Limited track record · 10 flights
Find 10:40 AM flight fares Opens this date on Aviasales
#9 · PSA 5486 · sold as American Eagle
6:31 PM → 8:10 PM1h 39m nonstop
Local times, typical schedule. Last flown 2026-04-06.
61%
chance on time
On time (history)
65%
Cancelled
11.5%
Avg arrival delay
16 min
- Arrived on time 65% of the time (23 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (6 to 9 PM: 61% on time; Before 9 AM: 88%).
- 88% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (23 flights), so its score leans on the airline's record at this hour.
Limited track record · 23 flights
Find 6:31 PM flight fares Opens this date on Aviasales
#10 · American 2397
6:10 PM → 7:51 PM1h 41m nonstop
Local times, typical schedule. Last flown 2026-05-31.
59%
chance on time
On time (history)
78%
Cancelled
0.0%
Avg arrival delay
16 min
- Arrived on time 78% of the time (9 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (6 to 9 PM: 61% on time; Before 9 AM: 88%).
- Lands inside PHL's trouble window: 72% of its 95 ground stops and delay programs started between 2 PM and 8 PM.
- 78% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 9 flights
Find American 2397 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)84%
560 flights · 87% on time as flown · 1.7% cancel
PSA Airlines (sold as American Eagle)72%
300 flights · 77% on time as flown · 4.9% cancel
American Airlines68%
477 flights · 67% on time as flown · 4.0% cancel

On time by departure time

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

Before 9 AM88%
504 flights · avg delay 10 min
9 AM to noon82%
226 flights · avg delay 12 min
Noon to 3 PM84%
127 flights · avg delay 13 min
3 to 6 PM65%
318 flights · avg delay 32 min
6 to 9 PM61%
162 flights · avg delay 30 min

Best day: Tuesday (87%). Worst: Friday (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 aircraft48%
Airline (crew, maintenance, boarding)25%
Air traffic control and airport volume23%
Severe weather4%

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

CMH to PHL questions

What time of day is best to fly CMH to PHL?: Before 9 AM: 88% 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 CMH to PHL?: Republic, with a season-adjusted 84% chance of operating and arriving on time over 560 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 CMH to PHL?: July (69% on time); the best was November (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.

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