Route on-time record
GEG to SMF: most on-time flights and the best time to fly
Spokane (Spokane International Airport) to Sacramento (Sacramento International Airport). 656 nonstop flights in Jun 2025 to May 2026, 87% arrived within 15 minutes and 0.2% were cancelled. The most reliable flight number was Southwest 2234 at 5:00 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
GEG → SMF
Spokane to Sacramento: 656 nonstop flights a year
On time (12 months)
87%
Cancelled
0.2%
avg delay 8 min
Best time to leave
Before 9 AM
97% on time vs 67% 6 to 9 PM
Most reliable airline
Southwest
87% 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 · Southwest 2234
5:00 AM → 6:55 AM1h 55m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 2866; its record covers all of them.
98%
chance on time
- On time (history)
- 99%
- Cancelled
- 0.0%
- Avg arrival delay
- 1 min
- Arrived on time 99% of the time (86 flights, Jun 2025 to May 2026).
- Never cancelled in 87 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 97% on time; 6 to 9 PM: 67%).
Moderate track record · 86 flights
Find Southwest 2234 fares Opens this date on Aviasales#2 · Southwest 3008
5:10 PM → 7:00 PM1h 50m nonstop
Local times, typical schedule. Last flown 2026-04-06.
76%
chance on time
- On time (history)
- 80%
- Cancelled
- 0.0%
- Avg arrival delay
- 10 min
- Arrived on time 80% of the time (15 flights, Jun 2025 to May 2026).
- 77% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (15 flights), so its score leans on the airline's record at this hour.
Limited track record · 15 flights
Find Southwest 3008 fares Opens this date on Aviasales#3 · Southwest 2235
5:35 PM → 7:30 PM1h 55m nonstop
Local times, typical schedule. Last flown 2026-05-29.
74%
chance on time
- On time (history)
- 74%
- Cancelled
- 0.0%
- Avg arrival delay
- 8 min
- Arrived on time 74% of the time (23 flights, Jun 2025 to May 2026).
- Short track record (23 flights), so its score leans on the airline's record at this hour.
Limited track record · 23 flights
Find Southwest 2235 fares Opens this date on Aviasales#4 · Southwest 2176
5:20 PM → 7:10 PM1h 50m nonstop
Local times, typical schedule. Last flown 2026-05-31.
70%
chance on time
- On time (history)
- 50%
- Cancelled
- 0.0%
- Avg arrival delay
- 25 min
- Arrived on time 50% of the time (8 flights, Jun 2025 to May 2026).
- 81% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (8 flights), so its score leans on the airline's record at this hour.
Limited track record · 8 flights
Find Southwest 2176 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Southwest Airlines87%
656 flights · 87% on time as flown · 0.2% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM97%
357 flights · avg delay 4 min
- Noon to 3 PM82%
44 flights · avg delay 9 min
- 3 to 6 PM70%
179 flights · avg delay 15 min
- 6 to 9 PM67%
36 flights · avg delay 16 min
Best day: Saturday (89%). Worst: Monday (83%).
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 aircraft58%
- Airline (crew, maintenance, boarding)29%
- Security8%
- Air traffic control and airport volume5%
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
GEG to SMF questions
- What time of day is best to fly GEG to SMF?
- Before 9 AM: 97% of flights arrived on time, against 67% for departures 6 to 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 GEG to SMF?
- Southwest, with a season-adjusted 87% chance of operating and arriving on time over 656 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 GEG to SMF?
- July (79% on time); the best was May (90%), 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 GEG
- SMF to GEG (return)
- GEG to SEA 85%
- GEG to DEN 83%
- GEG to SLC 91%
- GEG to PHX 85%
- GEG to PDX 88%
- GEG to LAS 85%
- GEG to SFO 77%
- GEG to LAX 91%
- GEG to MSP 91%
- GEG to ORD 67%
- GEG to DFW 79%
- GEG to ATL 86%
Live status: FAA delays and ground stops