Route on-time record
BIL to SLC: most on-time flights and the best time to fly
Billings (Billings Logan International Airport) to Salt Lake City (Salt Lake City International Airport). 1,074 nonstop flights in Jun 2025 to May 2026, 92% arrived within 15 minutes and 0.6% were cancelled. The most reliable flight number was SkyWest 4038 at 11:34 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
BIL → SLC
Billings to Salt Lake City: 1,074 nonstop flights a year
On time (12 months)
92%
Cancelled
0.6%
avg delay 8 min
Best time to leave
9 AM to noon
96% on time vs 86% 6 to 9 PM
Most reliable airline
Delta
93% 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 · SkyWest 4038 · sold as United Express, Delta Connection, American Eagle or Alaska
11:34 AM → 1:05 PM1h 35m nonstop
Local times, typical schedule. Last flown 2026-05-31.
95%
chance on time
- On time (history)
- 96%
- Cancelled
- 0.6%
- Avg arrival delay
- 3 min
- Arrived on time 96% of the time (169 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (9 AM to noon: 96% on time; 6 to 9 PM: 86%).
Moderate track record · 169 flights
Find 11:34 AM flight fares Opens this date on Aviasales#2 · Delta 1360
5:15 AM → 6:40 AM1h 27m nonstop
Local times, typical schedule. Last flown 2026-05-31.
93%
chance on time
- On time (history)
- 93%
- Cancelled
- 0.3%
- Avg arrival delay
- 9 min
- Arrived on time 93% of the time (364 flights, Jun 2025 to May 2026).
Strong track record · 364 flights
Find Delta 1360 fares Opens this date on Aviasales#3 · SkyWest 3828 · sold as United Express, Delta Connection, American Eagle or Alaska
6:21 PM → 8:00 PM1h 39m nonstop
Local times, typical schedule. Last flown 2026-05-31.
85%
chance on time
- On time (history)
- 86%
- Cancelled
- 0.6%
- Avg arrival delay
- 13 min
- Arrived on time 86% of the time (342 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (6 to 9 PM: 86% on time; 9 AM to noon: 96%).
Strong track record · 342 flights
Find 6:21 PM flight fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Delta Air Lines93%
366 flights · 93% on time as flown · 0.4% cancel
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)90%
708 flights · 91% on time as flown · 0.7% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM93%
365 flights · avg delay 9 min
- 9 AM to noon96%
363 flights · avg delay 4 min
- 6 to 9 PM86%
337 flights · avg delay 13 min
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)74%
- Severe weather10%
- Air traffic control and airport volume9%
- Late-arriving aircraft7%
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
BIL to SLC questions
- What time of day is best to fly BIL to SLC?
- 9 AM to noon: 96% of flights arrived on time, against 86% for departures 6 to 9 PM.
- Which airline is most on time from BIL to SLC?
- Delta, with a season-adjusted 93% chance of operating and arriving on time over 366 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 BIL to SLC?
- February (81% on time); the best was September (96%), 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 BIL
- SLC to BIL (return)
- BIL to DEN 80%
- BIL to DFW 84%
- BIL to ORD 78%
- BIL to MSP 90%
Live status: FAA delays and ground stops