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Route on-time record

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

San Francisco (San Francisco International Airport) to Spokane (Spokane International Airport). 847 nonstop flights in Jun 2025 to May 2026, 79% arrived within 15 minutes and 0.4% were cancelled. The most reliable flight number was SkyWest 5419 at 7:05 PM.

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

SFO → GEG

San Francisco to Spokane: 847 nonstop flights a year

On time (12 months)

79%

Cancelled

0.4%

avg delay 14 min

Best time to leave

Before 9 AM

90% on time vs 71% 9 AM to noon

Most reliable airline

United

79% chance on time

Check SFO to GEG fares

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 5419 · sold as United Express, Delta Connection, American Eagle or Alaska

    7:05 PM → 9:35 PM2h 30m nonstop

    Local times, typical schedule. Last flown 2026-05-18.

    84%

    chance on time

    On time (history)
    91%
    Cancelled
    2.8%
    Avg arrival delay
    5 min
    • Arrived on time 91% of the time (35 flights, Jun 2025 to May 2026).
    • Departs outside SFO's trouble window (7 AM to 1 PM, when 61% of its 333 ground stops and delay programs started).
    • Short track record (35 flights), so its score leans on the airline's record at this hour.

    Limited track record · 35 flights

    Find 7:05 PM flight fares Opens this date on Aviasales

  2. #2 · SkyWest 6014 · sold as United Express, Delta Connection, American Eagle or Alaska

    9:12 AM → 11:43 AM2h 26m nonstop

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

    83%

    chance on time

    On time (history)
    85%
    Cancelled
    0.0%
    Avg arrival delay
    11 min
    • Arrived on time 85% of the time (93 flights, Jun 2025 to May 2026).
    • Never cancelled in 93 scheduled flights.
    • Leaves in this route's least on-time window (9 AM to noon: 71% on time; Before 9 AM: 90%).
    • Departs inside SFO's trouble window: 61% of its 333 ground stops and delay programs started between 7 AM and 1 PM.

    Moderate track record · 93 flights

    Find 9:12 AM flight fares Opens this date on Aviasales

  3. #3 · United 691

    6:54 PM → 9:03 PM2h 09m nonstop

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

    82%

    chance on time

    On time (history)
    88%
    Cancelled
    0.0%
    Avg arrival delay
    5 min
    • Arrived on time 88% of the time (24 flights, Jun 2025 to May 2026).
    • Departs outside SFO's trouble window (7 AM to 1 PM, when 61% of its 333 ground stops and delay programs started).
    • Short track record (24 flights), so its score leans on the airline's record at this hour.

    Limited track record · 24 flights

    Find United 691 fares Opens this date on Aviasales

  4. #4 · SkyWest 5693 · sold as United Express, Delta Connection, American Eagle or Alaska

    9:27 PM → 11:51 PM2h 24m nonstop

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

    72%

    chance on time

    On time (history)
    60%
    Cancelled
    0.0%
    Avg arrival delay
    22 min
    • Arrived on time 60% of the time (10 flights, Jun 2025 to May 2026).
    • Departs outside SFO's trouble window (7 AM to 1 PM, when 61% of its 333 ground stops and delay programs started).
    • 76% of its delay minutes came from the plane arriving late from an earlier flight.
    • Short track record (10 flights), so its score leans on the airline's record at this hour.

    Limited track record · 10 flights

    Find 9:27 PM flight fares Opens this date on Aviasales

  5. #5 · SkyWest 3325 · sold as United Express, Delta Connection, American Eagle or Alaska

    10:28 AM → 12:40 PM2h 12m nonstop

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

    51%

    chance on time

    On time (history)
    0%
    Cancelled
    0.0%
    Avg arrival delay
    85 min
    • Arrived on time 0% of the time (13 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (9 AM to noon: 71% on time; Before 9 AM: 90%).
    • Departs inside SFO's trouble window: 61% of its 333 ground stops and delay programs started between 7 AM and 1 PM.
    • Short track record (13 flights), so its score leans on the airline's record at this hour.

    Limited track record · 13 flights

    Find 10:28 AM flight fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • United Airlines79%

    52 flights · 81% on time as flown · 0.3% cancel

  • SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)78%

    795 flights · 78% on time as flown · 0.4% cancel

On time by departure time

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

  • Before 9 AM90%

    165 flights · avg delay 5 min

  • 9 AM to noon71%

    202 flights · avg delay 21 min

  • Noon to 3 PM80%

    142 flights · avg delay 11 min

  • 3 to 6 PM86%

    60 flights · avg delay 23 min

  • 6 to 9 PM77%

    182 flights · avg delay 14 min

  • After 9 PM72%

    96 flights · avg delay 15 min

Best day: Tuesday (84%). Worst: Friday (74%).

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
87
F
82
M
88
A
80
M
76
J
77
J
77
A
85
S
84
O
78
N
83
D
81

What delays this route

  • Air traffic control and airport volume34%
  • Late-arriving aircraft32%
  • Airline (crew, maintenance, boarding)25%
  • Severe weather9%

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

Finding the most reliable connections from SFO to GEG…

SFO to GEG questions

What time of day is best to fly SFO to GEG?
Before 9 AM: 90% of flights arrived on time, against 71% for departures 9 AM to noon. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
Which airline is most on time from SFO to GEG?
United, with a season-adjusted 79% chance of operating and arriving on time over 52 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 SFO to GEG?
May (76% on time); the best was March (88%), 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 SFO

Live status: FAA delays and ground stops