SAN → BOSSan Diego to Boston

live

Direct flights from San Diego (SAN) to Boston (BOS): 28 nonstop departures observed each week across 4 airlines. The median arrival is 29 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 San Diego and Boston. Updated 13 September 2026 at 13:26 UTC.

SAN San Diego smooth · +0
BOS Boston smooth · +0
4,156 km · ~5h 50m est.
dep bank 08:25–22:0228x weekly
Running clean · 4 airlines · 28x weekly · nonstop
100 / 100

route health from live SAN and BOS delay boards

Median arrival delay is −29 min. 0 of 3 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−29 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 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 AS390 08:25 daily · AS255 20:59 Mo Th Fr Su

Delta Air LinesDL

Flights DL571 varies daily

JetBlue AirwaysB6

Flights B6620 10:15 Mo Tu We Th Fr Su · B6220 varies daily · B62120 20:17 daily

Southwest AirlinesWN

Flights WN3706 15:55 daily

History

operated legs · board outcomes
09-12B6220arrived−86
09-12DL571arrived−25
09-12WN3706arrived−29

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
SANSan Diego +0 min smooth ⛅ overcast · WSW 4 kt Full SAN delay board →
BOSBoston +0 min smooth 🌤 overcast · SE 5 kt Full BOS delay board →

Weather lens

Current conditions put the pressure at SAN and BOS: 44% odds of a 15+ minute delay and around +8 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the San Diego to Boston route actually runs

Pro Flight Search records official board updates for nonstop SAN to BOS 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 — San Diego (SAN) to Boston (BOS) route reliability, measured from operated flights on official airport boards.

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

SAN to BOS questions

Is SAN–BOS running on time right now?

Smooth skies ahead. Both endpoints currently score the same, route health score 100/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on SAN–BOS?

Operators schedule morning departures around 08:25 and evening departures around 20:17 from SAN. Earlier flights typically land before destination-airport delays accumulate later in the day; check the BOS delay card to confirm conditions when you'd arrive.

How long is the flight from SAN to BOS?

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 SAN–BOS fly?

4 carriers operate this route, around 45 flights a week between them. Compare carrier days and times in the airline list above.