Route on-time record
GEG to BOI: most on-time flights and the best time to fly
Spokane (Spokane International Airport) to Boise (Boise Air Terminal/Gowen Field). 345 nonstop flights in Jun 2025 to May 2026, 90% arrived within 15 minutes and 0.3% were cancelled. The most reliable flight number was SkyWest 3103 at 9:20 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
GEG → BOI
Spokane to Boise: 345 nonstop flights a year
On time (12 months)
90%
Cancelled
0.3%
avg delay 6 min
Best time to leave
No clear winner
Most reliable airline
SkyWest
90% 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 3103 · sold as United Express, Delta Connection, American Eagle or Alaska
9:20 AM → 11:33 AM1h 13m nonstop
Local times, typical schedule. Last flown 2026-05-12.
91%
chance on time
- On time (history)
- 90%
- Cancelled
- 0.0%
- Avg arrival delay
- 4 min
- Arrived on time 90% of the time (21 flights, Jun 2025 to May 2026).
Limited track record · 21 flights
Find 9:20 AM 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)90%
345 flights · 90% on time as flown · 0.3% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- 9 AM to noon93%
56 flights · avg delay 4 min
- 3 to 6 PM89%
289 flights · avg delay 7 min
Best day: Saturday (93%). Worst: Sunday (85%).
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 aircraft70%
- Airline (crew, maintenance, boarding)16%
- Severe weather7%
- Air traffic control and airport volume7%
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 BOI questions
- Which airline is most on time from GEG to BOI?
- SkyWest, with a season-adjusted 90% chance of operating and arriving on time over 345 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 BOI?
- January (76% on time); the best was March (95%), 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
- BOI 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 SMF 87%
- GEG to DFW 79%
Most on-time flights from GEG on every route →
Live status: FAA delays and ground stops