Route on-time record
SEA to GEG: most on-time flights and the best time to fly
Seattle (Seattle–Tacoma International Airport) to Spokane (Spokane International Airport). 5,317 nonstop flights in Jun 2025 to May 2026, 81% arrived within 15 minutes and 1.0% were cancelled. The most reliable flight number was SkyWest 3830 at 7:25 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
SEA → GEG
Seattle to Spokane: 5,317 nonstop flights a year
On time (12 months)
81%
Cancelled
1.0%
avg delay 11 min
Best time to leave
Before 9 AM
95% on time vs 77% after 9 PM
Most reliable airline
SkyWest
86% chance on time
Lowest nonstop fare seen in the next two months: $201 (Alaska 2086 on 2026-11-05). 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 3830 · sold as United Express, Delta Connection, American Eagle or Alaska
7:25 AM → 8:50 AM1h 20m nonstop
Local times, typical schedule. Last flown 2026-05-31.
95%
chance on time
- On time (history)
- 96%
- Cancelled
- 0.8%
- Avg arrival delay
- 4 min
- Arrived on time 96% of the time (360 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 95% on time; After 9 PM: 77%).
- Departs outside SEA's trouble window (4 PM to 10 PM, when 54% of its 68 ground stops and delay programs started).
Strong track record · 360 flights
Find 7:25 AM flight fares Opens this date on Aviasales#2 · SkyWest 4058 · sold as United Express, Delta Connection, American Eagle or Alaska
9:35 PM → 10:50 PM1h 15m nonstop
Local times, typical schedule. Last flown 2026-04-12.
92%
chance on time
- On time (history)
- 100%
- Cancelled
- 2.8%
- Avg arrival delay
- 1 min
- Arrived on time 100% of the time (35 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (After 9 PM: 77% on time; Before 9 AM: 95%).
- Departs inside SEA's trouble window: 54% of its 68 ground stops and delay programs started between 4 PM and 10 PM.
- Short track record (35 flights), so its score leans on the airline's record at this hour.
Limited track record · 35 flights
Find 9:35 PM flight fares Opens this date on Aviasales#3 · SkyWest 3857 · sold as United Express, Delta Connection, American Eagle or Alaska
3:40 PM → 4:57 PM1h 17m nonstop
Local times, typical schedule. Last flown 2026-05-31.
91%
chance on time
- On time (history)
- 96%
- Cancelled
- 0.0%
- Avg arrival delay
- 2 min
- Arrived on time 96% of the time (56 flights, Jun 2025 to May 2026).
- Never cancelled in 56 scheduled flights.
- Departs outside SEA's trouble window (4 PM to 10 PM, when 54% of its 68 ground stops and delay programs started).
- Short track record (56 flights), so its score leans on the airline's record at this hour.
Limited track record · 56 flights
Find 3:40 PM flight fares Opens this date on Aviasales#4 · Alaska 672
7:40 AM → 9:01 AM1h 21m nonstop
Local times, typical schedule. Last flown 2026-05-11.
91%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 0 min
- Arrived on time 100% of the time (8 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 95% on time; After 9 PM: 77%).
- Departs outside SEA's trouble window (4 PM to 10 PM, when 54% of its 68 ground stops and delay programs started).
- Short track record (8 flights), so its score leans on the airline's record at this hour.
Limited track record · 8 flights
Find Alaska 672 fares Opens this date on Aviasales#5 · SkyWest 3283 · sold as United Express, Delta Connection, American Eagle or Alaska
3:50 PM → 4:58 PM1h 08m nonstop
Local times, typical schedule. Last flown 2026-05-31.
90%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 2 min
- Arrived on time 100% of the time (19 flights, Jun 2025 to May 2026).
- Departs outside SEA's trouble window (4 PM to 10 PM, when 54% of its 68 ground stops and delay programs started).
- Short track record (19 flights), so its score leans on the airline's record at this hour.
Limited track record · 19 flights
Find 3:50 PM flight fares Opens this date on Aviasales#6 · SkyWest 4145 · sold as United Express, Delta Connection, American Eagle or Alaska
1:31 PM → 2:45 PM1h 19m nonstop
Local times, typical schedule. Last flown 2026-05-31.
90%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.5%
- Avg arrival delay
- 5 min
- Arrived on time 91% of the time (363 flights, Jun 2025 to May 2026).
- Departs outside SEA's trouble window (4 PM to 10 PM, when 54% of its 68 ground stops and delay programs started).
Strong track record · 363 flights
Find 1:31 PM flight fares Opens this date on Aviasales#7 · SkyWest 4150 · sold as United Express, Delta Connection, American Eagle or Alaska
9:55 PM → 11:15 PM1h 18m nonstop
Local times, typical schedule. Last flown 2026-05-31.
90%
chance on time
- On time (history)
- 94%
- Cancelled
- 1.8%
- Avg arrival delay
- 4 min
- Arrived on time 94% of the time (54 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (After 9 PM: 77% on time; Before 9 AM: 95%).
- Departs inside SEA's trouble window: 54% of its 68 ground stops and delay programs started between 4 PM and 10 PM.
- Short track record (54 flights), so its score leans on the airline's record at this hour.
Limited track record · 54 flights
Find 9:55 PM flight fares Opens this date on Aviasales#8 · SkyWest 3824 · sold as United Express, Delta Connection, American Eagle or Alaska
9:33 AM → 10:50 AM1h 17m nonstop
Local times, typical schedule. Last flown 2026-05-31.
87%
chance on time
- On time (history)
- 89%
- Cancelled
- 1.2%
- Avg arrival delay
- 9 min
- Arrived on time 89% of the time (168 flights, Jun 2025 to May 2026).
- Departs outside SEA's trouble window (4 PM to 10 PM, when 54% of its 68 ground stops and delay programs started).
Moderate track record · 168 flights
Find 9:33 AM flight fares Opens this date on Aviasales#9 · SkyWest 3832 · sold as United Express, Delta Connection, American Eagle or Alaska
5:55 PM → 7:05 PM1h 13m nonstop
Local times, typical schedule. Last flown 2026-05-31.
86%
chance on time
- On time (history)
- 87%
- Cancelled
- 1.2%
- Avg arrival delay
- 10 min
- Arrived on time 87% of the time (331 flights, Jun 2025 to May 2026).
- Departs inside SEA's trouble window: 54% of its 68 ground stops and delay programs started between 4 PM and 10 PM.
Strong track record · 331 flights
Find 5:55 PM flight fares Opens this date on Aviasales#10 · SkyWest 3677 · sold as United Express, Delta Connection, American Eagle or Alaska
7:51 PM → 9:06 PM1h 15m nonstop
Local times, typical schedule. Last flown 2026-05-31.
85%
chance on time
- On time (history)
- 89%
- Cancelled
- 1.7%
- Avg arrival delay
- 6 min
- Arrived on time 89% of the time (118 flights, Jun 2025 to May 2026).
- Departs inside SEA's trouble window: 54% of its 68 ground stops and delay programs started between 4 PM and 10 PM.
Moderate track record · 118 flights
Find 7:51 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)86%
3,128 flights · 87% on time as flown · 1.0% cancel
- Alaska Airlines73%
1,846 flights · 74% on time as flown · 0.8% cancel
- Delta Air Lines72%
343 flights · 71% on time as flown · 1.1% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM95%
458 flights · avg delay 5 min
- 9 AM to noon81%
1,219 flights · avg delay 10 min
- Noon to 3 PM85%
661 flights · avg delay 8 min
- 3 to 6 PM79%
1,126 flights · avg delay 11 min
- 6 to 9 PM81%
614 flights · avg delay 13 min
- After 9 PM77%
1,239 flights · avg delay 13 min
Best day: Tuesday (84%). Worst: Sunday (77%).
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
- Airline (crew, maintenance, boarding)43%
- Late-arriving aircraft30%
- Severe weather15%
- Air traffic control and airport volume11%
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
SEA to GEG questions
- What time of day is best to fly SEA to GEG?
- Before 9 AM: 95% of flights arrived on time, against 77% for departures after 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 SEA to GEG?
- SkyWest, with a season-adjusted 86% chance of operating and arriving on time over 3,128 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 SEA to GEG?
- June (76% on time); the best was October (87%), 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 SEA
- GEG to SEA (return)
- SEA to LAX 83%
- SEA to PHX 79%
- SEA to SFO 69%
- SEA to ANC 74%
- SEA to DEN 77%
- SEA to LAS 77%
- SEA to ORD 75%
- SEA to DFW 77%
- SEA to PDX 82%
- SEA to SAN 78%
- SEA to SMF 81%
- SEA to SJC 82%
Live status: FAA delays and ground stops