Alaska AirlinesAS
live
Direct flights from Boston (BOS) to San Diego (SAN): 28 nonstop departures observed each week across 4 airlines. The median arrival is 35 minutes early. No cancellations were recorded across the 3 tracked flights. The nonstop covers 4,156 km, an estimated 5 hours 50 minutes in the air. Measured by Pro Flight Search from live flight boards at Boston and San Diego. Updated 25 October 2026 at 19:39 UTC.
Today, BOS → SAN
Sun 25 Oct · local times- 07:00 B6619JetBlue Left 07:00 ·
- 07:51 AS256Alaska Airlines Left 07:51 Landed 10:34 −35
- 09:30 B6219JetBlue Departed Landed 12:09 −47
- 15:50 B6319JetBlue On scheduleGate C20 · TC SAN est. 18:48sched 19:14
- 16:25 WN3611Southwest Est. 16:27Gate B33 · TB SAN est. 19:25sched 19:40
- 17:10 DL571Delta On scheduleGate A16 · TA SAN est. 20:14sched 20:28
- 18:14 AS389Alaska Airlines On scheduleGate B4 · TB SAN est. 21:26sched 21:35
Checked BOS board 15:25 · SAN board 12:39
BOS
Boston
smooth · +0
SAN
San Diego
busy · +29
4,156 km · ~5h 50m est.
Running clean · 4 airlines · 28x weekly · nonstop
81 / 100
route health from live BOS and SAN delay boards
Median arrival delay is −35 min. 0 of 3 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−35 minacross the last 3 operated legs
Flight time~5h 50mestimated from route distance
Weekly departures28x4 direct airlines on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Alaska AirlinesDelta Air LinesJetBlue AirwaysSouthwest Airlines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
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 boardsWeather lens
Current conditions put the pressure at SAN: 56% odds of a 15+ minute delay and around +19 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Boston to San Diego route actually runs
Pro Flight Search records official board updates for nonstop BOS to SAN flights through the day: 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.
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 — Boston (BOS) to San Diego (SAN) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/BOS-SAN
BOS to SAN questions
Is BOS–SAN running on time right now?
Mostly on schedule. The arrival side at SAN is the weaker end, route health score 81/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on BOS–SAN?
Operators schedule morning departures around 07:00 and evening departures around 17:10 from BOS. Earlier flights typically land before destination-airport delays accumulate later in the day; check the SAN delay card to confirm conditions when you'd arrive.
How long is the flight from BOS to SAN?
Great-circle distance is 4,156 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 323–386 min gate-to-gate on this route.
How often does BOS–SAN fly?
4 carriers operate this route, around 48 flights a week between them. Compare carrier days and times in the airline list above.
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