Air Transport International8C
Flights 8C3399 varies Mo Fr
live
Direct flights from Seattle (SEA) to San Bernardino (SBD): 2 nonstop departures observed each week across 1 airline. The median arrival is 66 minutes early. No cancellations were recorded across the 1 tracked flight. The nonstop covers 1,544 km, an estimated 2 hours 29 minutes in the air. Measured by Pro Flight Search from live flight boards at Seattle and San Bernardino. Updated 11 August 2026 at 01:54 UTC.
SEA
Seattle
smooth · +8
SBD
San Bernardino
tracking
1,544 km · ~2h 29m est.
Running clean · 1 airline · 2x weekly · nonstop
88 / 100
route health from live SEA and SBD delay boards
Median arrival delay is −66 min. 0 of 1 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Search live fares for this route →Median arrival−66 minacross the last 1 operated legs
Flight time~2h 29mestimated from route distance
Weekly departures2x1 direct airline on the leg
Current nonstop fares
SEA → SBD · one way · economy · 1 adult
TodayChecking…Direct airline fares
TomorrowChecking…Direct airline fares
In one weekChecking…Direct airline fares
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsnext sweep in 120s
How the Seattle to San Bernardino route actually runs
Pro Flight Search tracks every published board update for nonstop SEA to SBD flights: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises. Fares link straight to the operating airline with no markups.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — Seattle (SEA) to San Bernardino (SBD) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/SEA-SBD
SEA to SBD questions
Is SEA–SBD running on time right now?
Smooth skies ahead. The departure side at SEA is the weaker end, route health score 88/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from SEA to SBD?
Great-circle distance is 1,544 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 139–162 min gate-to-gate on this route.
How often does SEA–SBD fly?
Air Transport International runs the route with about 2 flights a week (mon, fri). Since one carrier owns the route, a single disruption tends to ripple through the day.
What does the route health score measure?
A blend of departure-side delay at SEA and arrival-side delay at SBD, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
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