BOS → SANBoston to San Diego

live

Direct flights from Boston (BOS) to San Diego (SAN): 26 nonstop departures observed each week across 4 airlines. 33% of the last 6 operated flights arrived within 15 minutes of schedule. The median arrival is 23 minutes late. No cancellations were recorded across the 6 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 9 October 2026 at 07:09 UTC.

BOS Boston disrupted · +70
SAN San Diego heavy · +35
4,156 km · ~5h 50m est.
dep bank 07:00–18:1426x weekly
Runs rough · 4 airlines · 26x weekly · nonstop
33% on time

of the last 6 operated BOS → SAN flights arrived within 15 minutes

Median arrival delay is +23 min. 0 of 6 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival+23 minacross the last 6 operated legs
Flight time~5h 50mestimated from route distance
Weekly departures26x4 direct airlines on the leg

The week

scheduled departures · origin local time
06121824
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 days
Alaska AirlinesAS

Flights AS256 varies daily · AS389 18:14 daily

Delta Air LinesDL

Flights DL571 17:10 daily

JetBlue AirwaysB6

Flights B6619 07:00 Th Fr · B6219 varies daily · B6319 16:00 daily

Southwest AirlinesWN

Flights WN4382 10:35 Tu We · WN2611 10:50 Mo Th Fr

History

operated legs · board outcomes
10-08AS256dep +0 → arr−1
10-08AS389dep +91 → arr+94
10-08B6219departed+23
10-08B6619departed+0
10-08DL571departed+20
10-08WN2611departed+44

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
BOSBoston +70 min disrupted 🌤 few clouds · W 9 kt Full BOS delay board →
SANSan Diego +35 min heavy 🌤 clear · NNW 4 kt Full SAN delay board →

Weather lens

Current conditions put the pressure at SAN: 55% odds of a 15+ minute delay and around +18 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

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
https://proflightsearch.com/search-flights/BOS-SAN
How we measure this →

BOS to SAN questions

Is BOS–SAN running on time right now?

High disruption likely. The departure side at BOS is the weaker end, route health score 30/100. 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 42 flights a week between them. Compare carrier days and times in the airline list above.