Reliable Flight Search results
Best trips
3 nonstop · ranked by overall best · 2 hidden by your Most reliable time setting (they leave at other times of day) · published legroom for 1 of 1
Most reliable time: morning departures (5–11 AM), the window with the best on-time odds for this trip. Turn off “Most reliable” under Departure time in Advanced settings to see every time.
Our best overall pick
89% chance you arrive on time · nonstop · 30 in legroom · planes about 26 years old · 1h 40m
Top pick#1 · Nonstop · 1h 40m
6:00 AM → 7:40 AM
65
score
price
live on Aviasales
89%
arrive on time
89% on time · 0.9% cancel6:00 AM CHS → 7:40 AM MIA1h 40m
American 1287
Airbus A319 · 20–28 yrs oldLegroom 30 in · 16.6–18.7 in wide · Main CabinWhy this is our top pick
- This morning flight leaves in the most reliable time of day on this route: its best departures have a 89% reliability rating vs 64% for night departures.
- Legroom was comparable across the flights we compared (30 in), so it didn't set them apart.
Find American 1287 fares Opens this date on Aviasales
Aircraft and ages come from the planes each flight number actually flew in the last 3 months of data (FAA registry build years); airlines can swap planes. Legroom is the seat pitch the airline or a seat-map source publishes for that aircraft and cabin; we never estimate it, and seat maps change, so check the airline’s seat map when you book.
CHS → MIA
Charleston to Miami: 1,037 nonstop flights a year
On time (12 months)
79%
Cancelled
1.3%
avg delay 22 min
Best time to leave
Before 9 AM
90% on time vs 63% 6 to 9 PM
Most reliable airline
American
78% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- American Airlines78%
950 flights · 79% on time as flown · 1.2% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM90%
365 flights · avg delay 8 min
- 9 AM to noon84%
341 flights · avg delay 19 min
- 6 to 9 PM63%
325 flights · avg delay 41 min
Best day: Wednesday (85%). Worst: Sunday (74%).
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