GEG to SMF flight delays & on-time performance
Nonstop flights from Spokane International Airport to Sacramento International Airport · 649 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at GEG or SMF right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Spokane (GEG) to Sacramento (SMF) arrived on time 87% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.2% were cancelled, and 3% arrived an hour or more late.
- Southwest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 5am did best (98% on time); around 5pm did worst (67%).
- Tuesday was the most reliable day to fly (95% on time) and Friday the least (81%).
- The largest source of delay minutes was late-arriving aircraft (70%).
Which airline is most on time from GEG to SMF?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Southwest Airlines | 87% | 0.2% | 7 min | 3.0% | 607 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am98%265 flights
- 6am96%96 flights
- 3pm78%18 flights
- 4pm87%23 flights
- 5pm67%161 flights
- 6pm78%18 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday84%0.0% cancelled
- Tuesday95%0.0% cancelled
- Wednesday91%0.0% cancelled
- Thursday89%0.0% cancelled
- Friday81%1.0% cancelled
- Saturday88%0.0% cancelled
- Sunday83%0.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft70%
- Airline (crew, maintenance, cleaning, fueling)25%
- Air traffic control & airport congestion5%
- Extreme weather0%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
GEG to SMF: common questions
- How often are GEG to SMF flights on time?
- 87% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Spokane to Sacramento cancelled?
- 0.2% of scheduled flights were cancelled (1 of 607).
- How long are typical delays?
- Across all flights the average arrival delay was 7 min (early arrivals count as zero). Flights that were late arrived 50 min behind schedule on average, and 3.0% of flights were an hour or more late.
- How long is taxi time at GEG?
- Flights on this route spent 13 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SMF to GEG — 77% on time
More flights from Spokane
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: GEG → SMF, nonstop flights by US airlines that report to the DOT. How we calculate this.