Route on-time record
SFO to MIA: most on-time flights and the best time to fly
San Francisco (San Francisco International Airport) to Miami (Miami International Airport). 1,701 nonstop flights in Jun 2025 to May 2026, 78% arrived within 15 minutes and 0.6% were cancelled. The most reliable flight number was American 369 at 6:15 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
SFO → MIA
San Francisco to Miami: 1,701 nonstop flights a year
On time (12 months)
78%
Cancelled
0.6%
avg delay 15 min
Best time to leave
After 9 PM
81% on time vs 70% noon to 3 PM
Most reliable airline
American
78% chance on time
Lowest nonstop fare seen in the next two months: $192 (American 1844 on 2026-11-05). 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 · American 369
6:15 AM → 2:50 PM5h 35m nonstop
Local times, typical schedule. Last flown 2026-05-31.
88%
chance on time
- On time (history)
- 89%
- Cancelled
- 0.6%
- Avg arrival delay
- 15 min
- Arrived on time 89% of the time (175 flights, Jun 2025 to May 2026).
- Departs outside SFO's trouble window (7 AM to 1 PM, when 60% of its 334 ground stops and delay programs started).
- Lands inside MIA's trouble window: 49% of its 45 ground stops and delay programs started between 1 PM and 7 PM.
Moderate track record · 175 flights
Find American 369 fares Opens this date on Aviasales#2 · United 1769
11:05 PM → 7:54 AM5h 39m nonstop
Local times, typical schedule. Last flown 2026-05-31.
84%
chance on time
- On time (history)
- 86%
- Cancelled
- 0.0%
- Avg arrival delay
- 8 min
- Arrived on time 86% of the time (194 flights, Jun 2025 to May 2026).
- Never cancelled in 194 scheduled flights.
- Leaves in this route's most on-time window (After 9 PM: 81% on time; Noon to 3 PM: 70%).
- Departs outside SFO's trouble window (7 AM to 1 PM, when 60% of its 334 ground stops and delay programs started).
Moderate track record · 194 flights
Find United 1769 fares Opens this date on Aviasales#3 · American 2799
10:30 PM → 7:05 AM5h 35m nonstop
Local times, typical schedule. Last flown 2026-05-31.
81%
chance on time
- On time (history)
- 80%
- Cancelled
- 0.0%
- Avg arrival delay
- 8 min
- Arrived on time 80% of the time (177 flights, Jun 2025 to May 2026).
- Never cancelled in 178 scheduled flights.
- Leaves in this route's most on-time window (After 9 PM: 81% on time; Noon to 3 PM: 70%).
- Departs outside SFO's trouble window (7 AM to 1 PM, when 60% of its 334 ground stops and delay programs started).
Moderate track record · 177 flights
Find American 2799 fares Opens this date on Aviasales#4 · United 2029
8:29 AM → 5:11 PM5h 42m nonstop
Local times, typical schedule. Last flown 2026-05-31.
75%
chance on time
- On time (history)
- 76%
- Cancelled
- 0.0%
- Avg arrival delay
- 12 min
- Arrived on time 76% of the time (161 flights, Jun 2025 to May 2026).
- Never cancelled in 163 scheduled flights.
- Departs inside SFO's trouble window: 60% of its 334 ground stops and delay programs started between 7 AM and 1 PM.
- Lands inside MIA's trouble window: 49% of its 45 ground stops and delay programs started between 1 PM and 7 PM.
Moderate track record · 161 flights
Find United 2029 fares Opens this date on Aviasales#5 · American 1545
9:50 PM → 6:26 AM5h 36m nonstop
Local times, typical schedule. Last flown 2026-05-31.
75%
chance on time
- On time (history)
- 64%
- Cancelled
- 0.0%
- Avg arrival delay
- 11 min
- Arrived on time 64% of the time (11 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (After 9 PM: 81% on time; Noon to 3 PM: 70%).
- Departs outside SFO's trouble window (7 AM to 1 PM, when 60% of its 334 ground stops and delay programs started).
- 57% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 11 flights
Find American 1545 fares Opens this date on Aviasales#6 · American 2565
12:00 PM → 8:47 PM5h 47m nonstop
Local times, typical schedule. Last flown 2026-05-31.
73%
chance on time
- On time (history)
- 64%
- Cancelled
- 0.0%
- Avg arrival delay
- 30 min
- Arrived on time 64% of the time (11 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (Noon to 3 PM: 70% on time; After 9 PM: 81%).
- Departs inside SFO's trouble window: 60% of its 334 ground stops and delay programs started between 7 AM and 1 PM.
Limited track record · 11 flights
Find American 2565 fares Opens this date on Aviasales#7 · American 2802
1:12 PM → 9:51 PM5h 39m nonstop
Local times, typical schedule. Last flown 2026-05-20.
57%
chance on time
- On time (history)
- 39%
- Cancelled
- 0.0%
- Avg arrival delay
- 31 min
- Arrived on time 39% of the time (44 flights, Jun 2025 to May 2026).
- Never cancelled in 44 scheduled flights.
- Leaves in this route's least on-time window (Noon to 3 PM: 70% on time; After 9 PM: 81%).
- Departs outside SFO's trouble window (7 AM to 1 PM, when 60% of its 334 ground stops and delay programs started).
Limited track record · 44 flights
Find American 2802 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- American Airlines78%
1,073 flights · 79% on time as flown · 0.9% cancel
- United Airlines77%
628 flights · 77% on time as flown · 0.1% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM80%
670 flights · avg delay 12 min
- Noon to 3 PM70%
345 flights · avg delay 30 min
- After 9 PM81%
654 flights · avg delay 9 min
Best day: Tuesday (84%). Worst: Sunday (77%).
Smarter routing
Nearby airports that run more on time
SFO → FLL 81% chance on time
San Francisco International Airport to Fort Lauderdale Hollywood International Airport · 1,270 flights a year · 21 mi from your airports · yours: 78%
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
- Airline (crew, maintenance, boarding)46%
- Late-arriving aircraft29%
- Air traffic control and airport volume23%
- Severe weather1%
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
SFO to MIA questions
- What time of day is best to fly SFO to MIA?
- After 9 PM: 81% of flights arrived on time, against 70% for departures noon to 3 PM.
- Which airline is most on time from SFO to MIA?
- American, with a season-adjusted 78% chance of operating and arriving on time over 1,073 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 SFO to MIA?
- July (75% on time); the best was October (89%), 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 SFO
- MIA to SFO (return)
- SFO to LAX 76%
- SFO to SEA 74%
- SFO to JFK 80%
- SFO to SAN 68%
- SFO to LAS 76%
- SFO to ORD 77%
- SFO to DEN 76%
- SFO to SNA 81%
- SFO to PHX 76%
- SFO to BOS 78%
- SFO to EWR 76%
- SFO to DFW 75%
Most on-time flights from SFO on every route →
Live status: FAA delays and ground stops