Route on-time record
SEA to SNA: most on-time flights and the best time to fly
Seattle (Seattle–Tacoma International Airport) to Santa Ana (John Wayne Orange County International Airport). 3,972 nonstop flights in Jun 2025 to May 2026, 85% arrived within 15 minutes and 1.0% were cancelled. The most reliable flight number was Alaska 1387 at 7:44 PM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
SEA → SNA
Seattle to Santa Ana: 3,972 nonstop flights a year
On time (12 months)
85%
Cancelled
1.0%
avg delay 9 min
Best time to leave
Before 9 AM
90% on time vs 80% 3 to 6 PM
Most reliable airline
Alaska
85% 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 · Alaska 1387
7:44 PM → 10:30 PM2h 47m nonstop
Local times, typical schedule. Last flown 2026-05-31.
93%
chance on time
- On time (history)
- 97%
- Cancelled
- 2.0%
- Avg arrival delay
- 2 min
- Arrived on time 97% of the time (145 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 · 145 flights
Find Alaska 1387 fares Opens this date on Aviasales#2 · Alaska 699
7:25 AM → 10:19 AM2h 54m nonstop
Local times, typical schedule. Last flown 2026-05-31.
89%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.5%
- Avg arrival delay
- 5 min
- Arrived on time 91% of the time (211 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 3 to 6 PM: 80%).
- 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 · 211 flights
Find Alaska 699 fares Opens this date on Aviasales#3 · SkyWest 3932 · sold as United Express, Delta Connection, American Eagle or Alaska
7:35 PM → 10:29 PM2h 54m nonstop
Local times, typical schedule. Last flown 2026-05-31.
87%
chance on time
- On time (history)
- 92%
- Cancelled
- 0.0%
- Avg arrival delay
- 3 min
- Arrived on time 92% of the time (25 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.
- Short track record (25 flights), so its score leans on the airline's record at this hour.
Limited track record · 25 flights
Find 7:35 PM flight fares Opens this date on Aviasales#4 · Delta 2101
7:20 AM → 10:14 AM2h 53m nonstop
Local times, typical schedule. Last flown 2026-05-06.
87%
chance on time
- On time (history)
- 87%
- Cancelled
- 1.0%
- Avg arrival delay
- 11 min
- Arrived on time 87% of the time (283 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 3 to 6 PM: 80%).
- 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 · 283 flights
Find Delta 2101 fares Opens this date on Aviasales#5 · SkyWest 3685 · sold as United Express, Delta Connection, American Eagle or Alaska
7:20 AM → 10:10 AM2h 50m nonstop
Local times, typical schedule. Last flown 2026-05-31.
86%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 4 min
- Arrived on time 91% of the time (23 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 3 to 6 PM: 80%).
- 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 (23 flights), so its score leans on the airline's record at this hour.
Limited track record · 23 flights
Find 7:20 AM flight fares Opens this date on Aviasales#6 · Alaska 1307
6:42 PM → 9:30 PM2h 48m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Alaska 631, 792; its record covers all of them.
86%
chance on time
- On time (history)
- 87%
- Cancelled
- 0.8%
- Avg arrival delay
- 5 min
- Arrived on time 87% of the time (251 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 · 251 flights
Find Alaska 1307 fares Opens this date on Aviasales#7 · Alaska 773
1:40 PM → 4:29 PM2h 49m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Alaska 743; its record covers all of them.
85%
chance on time
- On time (history)
- 87%
- Cancelled
- 0.6%
- Avg arrival delay
- 7 min
- Arrived on time 87% of the time (336 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 · 336 flights
Find Alaska 773 fares Opens this date on Aviasales#8 · Alaska 759
8:25 AM → 11:19 AM2h 54m nonstop
Local times, typical schedule. Last flown 2026-05-31.
85%
chance on time
- On time (history)
- 86%
- Cancelled
- 0.5%
- Avg arrival delay
- 8 min
- Arrived on time 86% of the time (203 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 3 to 6 PM: 80%).
- 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 · 203 flights
Find Alaska 759 fares Opens this date on Aviasales#9 · Alaska 1342
1:56 PM → 4:51 PM2h 55m nonstop
Local times, typical schedule. Last flown 2026-05-12.
84%
chance on time
- On time (history)
- 90%
- Cancelled
- 0.0%
- Avg arrival delay
- 5 min
- Arrived on time 90% of the time (21 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 (21 flights), so its score leans on the airline's record at this hour.
Limited track record · 21 flights
Find Alaska 1342 fares Opens this date on Aviasales#10 · Delta 1105
7:40 PM → 10:29 PM2h 49m nonstop
Local times, typical schedule. Last flown 2026-05-05.
84%
chance on time
- On time (history)
- 86%
- Cancelled
- 1.9%
- Avg arrival delay
- 11 min
- Arrived on time 86% of the time (100 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 · 100 flights
Find Delta 1105 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Alaska Airlines85%
2,627 flights · 86% on time as flown · 1.2% cancel
- Delta Air Lines83%
970 flights · 84% on time as flown · 0.9% cancel
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)82%
375 flights · 82% on time as flown · 0.5% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM90%
793 flights · avg delay 7 min
- 9 AM to noon82%
833 flights · avg delay 9 min
- Noon to 3 PM81%
508 flights · avg delay 11 min
- 3 to 6 PM80%
911 flights · avg delay 11 min
- 6 to 9 PM89%
927 flights · avg delay 6 min
Best day: Tuesday (89%). Worst: Sunday (84%).
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)54%
- Late-arriving aircraft23%
- Air traffic control and airport volume21%
- Severe weather2%
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 SNA questions
- What time of day is best to fly SEA to SNA?
- Before 9 AM: 90% of flights arrived on time, against 80% for departures 3 to 6 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 SNA?
- Alaska, with a season-adjusted 85% chance of operating and arriving on time over 2,627 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 SNA?
- August (83% on time); the best was April (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 SEA
- SNA 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 GEG 81%
- SEA to DFW 77%
- SEA to PDX 82%
- SEA to SAN 78%
- SEA to SMF 81%
Live status: FAA delays and ground stops