Burbank (BUR) to Seattle (SEA): On-Time Performance
Data through May 2026
The calendar drives reliability on BUR–SEA. September 2025 flights landed on schedule 92% of the time, but June 2025 dropped to 68% — a gap of 24 points. Across the full period the route averages 80% on-time against a national 78%. Morning departures also hold up better than evening ones (87% vs 74%), which matters most in the rough months.
- On-time
- 80%
- arrived <15 min late
- Avg delay
- 12 min
- completed flights
- Cancelled
- 2.1%
- Flights/day
- 4.3
- last 12 months
- Duration
- 2h 47m
- scheduled
- Distance
- 937 mi
Monthly on-time trend
Best time to fly from BUR to SEA
Aim for departures around 12 p.m. (89% on-time); avoid 7 p.m. departures (67%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 78% | 15 min |
| Tuesday | 84% | 8 min |
| Wednesdaybest | 85% | 9 min |
| Thursday | 80% | 11 min |
| Friday | 76% | 13 min |
| Saturday | 81% | 12 min |
| Sunday | 78% | 12 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft53%
- Airline operations18%
- National airspace system24%
- Weather5%
- Security1%
Frequently asked questions
- How often are flights from BUR to SEA delayed?
- 20% of BUR–SEA flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 12 minutes.
- What is the best time of day to fly from BUR to SEA?
- Departures around 12 p.m. have the best record (89% on-time), while departures around 7 p.m. have the worst (67%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from BUR to SEA?
- The scheduled BUR–SEA flight time averages 2h 47m over 937 miles. Actual arrival times vary — flights on this route land 15+ minutes late 20% of the time.
- How often are BUR to SEA flights cancelled?
- 2.1% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, slightly above the national rate of 1.6%.
- What is the worst month to fly from BUR to SEA?
- June 2025 was the roughest month in this dataset, with only 68% of arrivals on time. The best was September 2025 at 92%. If your dates are flexible, that 24-point gap is worth planning around.
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Based on 3,166 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.