Route Reliability
Santa Ana → Seattle
SNA–SEA · 978 miles · John Wayne Airport to Seattle–Tacoma International Airport
87
Pretty Reliable
WanderNerd Reliability Score
- 85%
- Arrive within 15 minutes
- 2 min early
- Average arrival delay
- 1.3%
- Cancelled
- 3,970
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Alaska Airlines87%2,625 flights
- 2.Delta Air Lines82%1,345 flights
What the data says
The late departure is the smart one here.
SNA–SEA flights departing between 9 PM–12 AM arrived on time 95% of the time, versus 76% between 6–9 PM.
Saturday comes out ahead.
A small edge: 88% on time on Saturdays against 82% on Sundays.
Alaska Airlines has a slight edge here.
Alaska Airlines arrived on time 87% of the time on this route; Delta Air Lines managed 82%.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon86%(600 flights)
- Tue88%(534 flights)
- Wed87%(535 flights)
- Thu84%(590 flights)
- Fri83%(581 flights)
- Sat88%(479 flights)
- Sun82%(593 flights)
- 6–9 AM91%(1077 flights)
- 9 AM–12 PM88%(740 flights)
- 12–3 PM84%(545 flights)
- 3–6 PM81%(862 flights)
- 6–9 PM76%(551 flights)
- 9 PM–12 AM95%(137 flights)
91%
May
Jun 70% → May 91% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 70% | 354 |
| July 2025 | 81% | 370 |
| August 2025 | 76% | 355 |
| September 2025 | 90% | 327 |
| October 2025 | 88% | 332 |
| November 2025 | 92% | 325 |
| December 2025 | 81% | 314 |
| January 2026 | 91% | 307 |
| February 2026 | 90% | 278 |
| March 2026 | 86% | 299 |
| April 2026 | 91% | 299 |
| May 2026 | 91% | 352 |
Same trip, other airports
Keep nerding
Based on 3,970 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.