Route on-time record
SAT to SLC: most on-time flights and the best time to fly
San Antonio (San Antonio International Airport) to Salt Lake City (Salt Lake City International Airport). 1,008 nonstop flights in Jun 2025 to May 2026, 86% arrived within 15 minutes and 1.0% were cancelled. The most reliable flight number was Delta 2592 at 7:00 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
SAT → SLC
San Antonio to Salt Lake City: 1,008 nonstop flights a year
On time (12 months)
86%
Cancelled
1.0%
avg delay 11 min
Best time to leave
Before 9 AM
95% on time vs 80% noon to 3 PM
Most reliable airline
Delta
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 2592
7:00 AM → 9:02 AM3h 02m nonstop
Local times, typical schedule. Last flown 2026-05-31.
94%
chance on time
- On time (history)
- 96%
- Cancelled
- 1.2%
- Avg arrival delay
- 5 min
- Arrived on time 96% of the time (166 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 95% on time; Noon to 3 PM: 80%).
Moderate track record · 166 flights
Find Delta 2592 fares Opens this date on Aviasales#2 · Delta 2680
5:55 PM → 8:00 PM3h 00m nonstop
Local times, typical schedule. Last flown 2026-05-31.
87%
chance on time
- On time (history)
- 90%
- Cancelled
- 1.4%
- Avg arrival delay
- 10 min
- Arrived on time 90% of the time (144 flights, Jun 2025 to May 2026).
- 63% of its delay minutes came from the plane arriving late from an earlier flight.
Moderate track record · 144 flights
Find Delta 2680 fares Opens this date on Aviasales#3 · Delta 930
1:47 PM → 3:53 PM2h 59m nonstop
Local times, typical schedule. Last flown 2026-05-31.
79%
chance on time
- On time (history)
- 79%
- Cancelled
- 1.2%
- Avg arrival delay
- 13 min
- Arrived on time 79% of the time (331 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (Noon to 3 PM: 80% on time; Before 9 AM: 95%).
- 56% of its delay minutes came from the plane arriving late from an earlier flight.
Strong track record · 331 flights
Find Delta 930 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Delta Air Lines85%
1,007 flights · 86% on time as flown · 1.0% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM95%
364 flights · avg delay 8 min
- Noon to 3 PM80%
357 flights · avg delay 12 min
- 3 to 6 PM88%
94 flights · avg delay 12 min
- 6 to 9 PM81%
193 flights · avg delay 15 min
Best day: Wednesday (90%). Worst: Sunday (84%).
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 aircraft53%
- Airline (crew, maintenance, boarding)40%
- Air traffic control and airport volume7%
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
SAT to SLC questions
- What time of day is best to fly SAT to SLC?
- Before 9 AM: 95% of flights arrived on time, against 80% for departures noon to 3 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 SAT to SLC?
- Delta, with a season-adjusted 85% chance of operating and arriving on time over 1,007 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 SAT to SLC?
- July (78% on time); the best was October (91%), 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 SAT
- SLC to SAT (return)
- SAT to DFW 77%
- SAT to ATL 85%
- SAT to DEN 81%
- SAT to DAL 84%
- SAT to PHX 83%
- SAT to IAH 81%
- SAT to LAS 83%
- SAT to ORD 76%
- SAT to LAX 87%
- SAT to HOU 74%
- SAT to CLT 86%
- SAT to MCO 77%
Live status: FAA delays and ground stops