Route on-time record
SFO to ATL: most on-time flights and the best time to fly
San Francisco (San Francisco International Airport) to Atlanta (Hartsfield Jackson Atlanta International Airport). 3,355 nonstop flights in Jun 2025 to May 2026, 81% arrived within 15 minutes and 0.8% were cancelled. The most reliable flight number was Delta 570 at 6:00 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
SFO → ATL
San Francisco to Atlanta: 3,355 nonstop flights a year
On time (12 months)
81%
Cancelled
0.8%
avg delay 14 min
Best time to leave
Before 9 AM
91% on time vs 73% after 9 PM
Most reliable airline
United
85% 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 · Delta 570
6:00 AM → 1:31 PM4h 36m nonstop
Local times, typical schedule. Last flown 2026-05-31.
91%
chance on time
- On time (history)
- 93%
- Cancelled
- 1.1%
- Avg arrival delay
- 9 min
- Arrived on time 93% of the time (360 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 91% on time; After 9 PM: 73%).
- Departs outside SFO's trouble window (7 AM to 1 PM, when 61% of its 333 ground stops and delay programs started).
- Lands inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.
Strong track record · 360 flights
Find Delta 570 fares Opens this date on Aviasales#2 · Delta 640
8:00 AM → 3:33 PM4h 40m nonstop
Local times, typical schedule. Last flown 2026-05-31.
89%
chance on time
- On time (history)
- 90%
- Cancelled
- 0.5%
- Avg arrival delay
- 8 min
- Arrived on time 90% of the time (362 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 91% on time; After 9 PM: 73%).
- Departs inside SFO's trouble window: 61% of its 333 ground stops and delay programs started between 7 AM and 1 PM.
- Lands inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.
Strong track record · 362 flights
Find Delta 640 fares Opens this date on Aviasales#3 · Delta 785
12:06 PM → 7:46 PM4h 40m nonstop
Local times, typical schedule. Last flown 2026-05-06.
88%
chance on time
- On time (history)
- 91%
- Cancelled
- 1.5%
- Avg arrival delay
- 8 min
- Arrived on time 91% of the time (134 flights, Jun 2025 to May 2026).
- Departs inside SFO's trouble window: 61% of its 333 ground stops and delay programs started between 7 AM and 1 PM.
Moderate track record · 134 flights
Find Delta 785 fares Opens this date on Aviasales#4 · United 702
10:15 AM → 6:10 PM4h 54m nonstop
Local times, typical schedule. Last flown 2026-05-31.
87%
chance on time
- On time (history)
- 87%
- Cancelled
- 0.0%
- Avg arrival delay
- 7 min
- Arrived on time 87% of the time (158 flights, Jun 2025 to May 2026).
- Never cancelled in 158 scheduled flights.
- Departs inside SFO's trouble window: 61% of its 333 ground stops and delay programs started between 7 AM and 1 PM.
- Lands inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.
Moderate track record · 158 flights
Find United 702 fares Opens this date on Aviasales#5 · United 1603
9:24 PM → 5:26 AM5h 02m nonstop
Local times, typical schedule. Last flown 2026-05-31.
86%
chance on time
- On time (history)
- 88%
- Cancelled
- 1.2%
- Avg arrival delay
- 9 min
- Arrived on time 88% of the time (82 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (After 9 PM: 73% on time; Before 9 AM: 91%).
- Departs outside SFO's trouble window (7 AM to 1 PM, when 61% of its 333 ground stops and delay programs started).
Moderate track record · 82 flights
Find United 1603 fares Opens this date on Aviasales#6 · Delta 693
11:20 AM → 7:07 PM4h 47m nonstop
Local times, typical schedule. Last flown 2026-05-31.
80%
chance on time
- On time (history)
- 77%
- Cancelled
- 0.0%
- Avg arrival delay
- 20 min
- Arrived on time 77% of the time (145 flights, Jun 2025 to May 2026).
- Never cancelled in 145 scheduled flights.
- Departs inside SFO's trouble window: 61% of its 333 ground stops and delay programs started between 7 AM and 1 PM.
Moderate track record · 145 flights
Find Delta 693 fares Opens this date on Aviasales#7 · Delta 531
1:45 PM → 9:40 PM4h 55m nonstop
Local times, typical schedule. Last flown 2026-05-31.
80%
chance on time
- On time (history)
- 79%
- Cancelled
- 0.4%
- Avg arrival delay
- 15 min
- Arrived on time 79% of the time (227 flights, Jun 2025 to May 2026).
- Departs outside SFO's trouble window (7 AM to 1 PM, when 61% of its 333 ground stops and delay programs started).
Strong track record · 227 flights
Find Delta 531 fares Opens this date on Aviasales#8 · Delta 690
11:35 PM → 7:40 AM4h 40m nonstop
Local times, typical schedule. Last flown 2026-05-31.
79%
chance on time
- On time (history)
- 78%
- Cancelled
- 1.5%
- Avg arrival delay
- 14 min
- Arrived on time 78% of the time (193 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (After 9 PM: 73% on time; Before 9 AM: 91%).
- Departs outside SFO's trouble window (7 AM to 1 PM, when 61% of its 333 ground stops and delay programs started).
Moderate track record · 193 flights
Find Delta 690 fares Opens this date on Aviasales#9 · Delta 715
2:20 PM → 10:00 PM4h 40m nonstop
Local times, typical schedule. Last flown 2026-05-06.
77%
chance on time
- On time (history)
- 79%
- Cancelled
- 0.0%
- Avg arrival delay
- 10 min
- Arrived on time 79% of the time (113 flights, Jun 2025 to May 2026).
- Never cancelled in 113 scheduled flights.
- Departs outside SFO's trouble window (7 AM to 1 PM, when 61% of its 333 ground stops and delay programs started).
Moderate track record · 113 flights
Find Delta 715 fares Opens this date on Aviasales#10 · Delta 495
10:35 PM → 6:35 AM4h 36m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Delta 365; its record covers all of them.
76%
chance on time
- On time (history)
- 76%
- Cancelled
- 0.9%
- Avg arrival delay
- 15 min
- Arrived on time 76% of the time (210 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (After 9 PM: 73% on time; Before 9 AM: 91%).
- Departs outside SFO's trouble window (7 AM to 1 PM, when 61% of its 333 ground stops and delay programs started).
Strong track record · 210 flights
Find Delta 495 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- United Airlines85%
640 flights · 85% on time as flown · 0.3% cancel
- Delta Air Lines82%
2,409 flights · 83% on time as flown · 0.8% cancel
- Frontier Airlines61%
306 flights · 58% on time as flown · 2.2% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM91%
890 flights · avg delay 9 min
- 9 AM to noon85%
525 flights · avg delay 11 min
- Noon to 3 PM80%
484 flights · avg delay 13 min
- 3 to 6 PM86%
142 flights · avg delay 15 min
- After 9 PM73%
1,314 flights · avg delay 20 min
Best day: Saturday (85%). Worst: Sunday (78%).
Smarter routing
Nearby airports that run more on time
SJC → ATL 92% chance on time
Norman Y. Mineta San Jose International Airport to Hartsfield Jackson Atlanta International Airport · 900 flights a year · 30 mi from your airports · yours: 81%
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)42%
- Air traffic control and airport volume11%
- 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 ATL questions
- What time of day is best to fly SFO to ATL?
- Before 9 AM: 91% of flights arrived on time, against 73% 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 SFO to ATL?
- United, with a season-adjusted 85% chance of operating and arriving on time over 640 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 ATL?
- June (74% on time); the best was February (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
- ATL 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%
Live status: FAA delays and ground stops