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Route on-time record

GEG to SFO: most on-time flights and the best time to fly

Spokane (Spokane International Airport) to San Francisco (San Francisco International Airport). 853 nonstop flights in Jun 2025 to May 2026, 77% arrived within 15 minutes and 0.1% were cancelled. The most reliable flight number was SkyWest 5217 at 12:35 PM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

GEG → SFO

Spokane to San Francisco: 853 nonstop flights a year

On time (12 months)

77%

Cancelled

0.1%

avg delay 18 min

Best time to leave

3 to 6 PM

85% on time vs 74% before 9 AM

Most reliable airline

SkyWest

77% chance on time

Check GEG to SFO fares

Lowest nonstop fare seen in the next two months: $260 (American 7539 on 2026-10-24). 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. #1 · SkyWest 5217 · sold as United Express, Delta Connection, American Eagle or Alaska

    12:35 PM → 3:05 PM2h 30m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    83%

    chance on time

    On time (history)
    83%
    Cancelled
    0.0%
    Avg arrival delay
    20 min
    • Arrived on time 83% of the time (312 flights, Jun 2025 to May 2026).
    • Never cancelled in 314 scheduled flights.

    Strong track record · 312 flights

    Find 12:35 PM flight fares Opens this date on Aviasales

  2. #2 · SkyWest 5323 · sold as United Express, Delta Connection, American Eagle or Alaska

    6:00 AM → 8:28 AM2h 28m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as SkyWest 4789; its record covers all of them.

    81%

    chance on time

    On time (history)
    82%
    Cancelled
    0.0%
    Avg arrival delay
    6 min
    • Arrived on time 82% of the time (28 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (Before 9 AM: 74% on time; 3 to 6 PM: 85%).
    • Lands inside SFO's trouble window: 61% of its 333 ground stops and delay programs started between 7 AM and 1 PM.
    • Short track record (28 flights), so its score leans on the airline's record at this hour.

    Limited track record · 28 flights

    Find 6:00 AM flight fares Opens this date on Aviasales

  3. #3 · United 743

    7:02 AM → 9:30 AM2h 28m nonstop

    Local times, typical schedule. Last flown 2026-03-28.

    69%

    chance on time

    On time (history)
    69%
    Cancelled
    0.0%
    Avg arrival delay
    14 min
    • Arrived on time 69% of the time (45 flights, Jun 2025 to May 2026).
    • Never cancelled in 45 scheduled flights.
    • Leaves in this route's least on-time window (Before 9 AM: 74% on time; 3 to 6 PM: 85%).
    • Lands inside SFO's trouble window: 61% of its 333 ground stops and delay programs started between 7 AM and 1 PM.

    Limited track record · 45 flights

    Find United 743 fares Opens this date on Aviasales

  4. #4 · SkyWest 5600 · sold as United Express, Delta Connection, American Eagle or Alaska

    7:00 AM → 9:30 AM2h 30m nonstop

    Local times, typical schedule. Last flown 2026-04-28.

    64%

    chance on time

    On time (history)
    38%
    Cancelled
    0.0%
    Avg arrival delay
    48 min
    • Arrived on time 38% of the time (24 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (Before 9 AM: 74% on time; 3 to 6 PM: 85%).
    • Lands inside SFO's trouble window: 61% of its 333 ground stops and delay programs started between 7 AM and 1 PM.
    • Short track record (24 flights), so its score leans on the airline's record at this hour.

    Limited track record · 24 flights

    Find 7:00 AM flight fares Opens this date on Aviasales

  5. #5 · SkyWest 3326 · sold as United Express, Delta Connection, American Eagle or Alaska

    1:20 PM → 3:40 PM2h 20m nonstop

    Local times, typical schedule. Last flown 2026-05-12.

    58%

    chance on time

    On time (history)
    28%
    Cancelled
    0.0%
    Avg arrival delay
    52 min
    • Arrived on time 28% of the time (18 flights, Jun 2025 to May 2026).
    • Short track record (18 flights), so its score leans on the airline's record at this hour.

    Limited track record · 18 flights

    Find 1:20 PM flight fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)77%

    801 flights · 77% on time as flown · 0.1% cancel

  • United Airlines74%

    52 flights · 71% on time as flown · 0.1% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

  • Before 9 AM74%

    337 flights · avg delay 14 min

  • Noon to 3 PM77%

    372 flights · avg delay 23 min

  • 3 to 6 PM85%

    138 flights · avg delay 8 min

Best day: Tuesday (84%). Worst: Monday (77%).

Smarter routing

Nearby airports that run more on time

  • GEG → OAK 89% chance on time

    Spokane International Airport to Oakland San Francisco Bay Airport · 432 flights a year · 11 mi from your airports · yours: 77%

    Rank flightsFares

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.

J
88
F
77
M
78
A
74
M
72
J
83
J
76
A
86
S
89
O
78
N
84
D
77

What delays this route

  • Air traffic control and airport volume43%
  • Late-arriving aircraft24%
  • Airline (crew, maintenance, boarding)23%
  • Severe weather11%

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 SFO questions

What time of day is best to fly GEG to SFO?
3 to 6 PM: 85% of flights arrived on time, against 74% for departures before 9 AM.
Which airline is most on time from GEG to SFO?
SkyWest, with a season-adjusted 77% chance of operating and arriving on time over 801 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 SFO?
May (72% on time); the best was September (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 GEG

Live status: FAA delays and ground stops