UA582United15 min late
The BOS board at 02:08 shows departure at 08:20 instead of 08:05, gate B24 (TB).
- Still to leave today
- UA574 09:00United · then B6833 09:30, UA1074 09:45
live
Direct flights from Boston (BOS) to San Francisco (SFO): 268 nonstop departures observed each week across 18 airlines. 46% of the last 13 tracked flights arrived within 15 minutes of schedule. The median arrival is 16 minutes late. No cancellations were recorded across the 19 tracked flights. The nonstop covers 4,341 km, an estimated 6 hours 4 minutes in the air. Measured by Pro Flight Search from live flight boards at Boston and San Francisco. Updated 13 November 2026 at 07:08 UTC.
Today, BOS → SFO
Fri 13 Nov · local times- 06:15 B6633JetBlue On scheduleGate C23A · TC ·
- 07:10 UA1023United On scheduleGate B27 · TB ·
- 07:50 DL977Delta On scheduleGate A14 · TA ·
- 08:05 UA582United Est. 08:20 +15Gate B24 · TB ·
- 09:00 UA574United On scheduleGate B27 · TB ·
- 09:30 B6833JetBlue On scheduleGate C9 · TC ·
- 09:45 UA1074United On scheduleGate B29 · TB ·
- 10:05 DL860Delta On scheduleGate A14 · TA ·
Checked BOS board 02:08 · SFO board 22:51
BOS
Boston
disrupted · +123
SFO
San Francisco
smooth · +2
4,341 km · ~6h 04m est.
Runs rough · 18 airlines · 268x weekly · nonstop
46% on time
of the last 13 tracked BOS → SFO flights arrived within 15 minutes
Median arrival delay is +16 min. 0 of 19 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+16 minacross the last 13 arrivals
Flight time~6h 04mestimated from route distance
Weekly departures268x18 direct airlines on the leg
Cancelled0.0%recent route rate · 0 of 19
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Air FranceAir New ZealandAsiana AirlinesDelta Air Lines
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 daysAir FranceAF
Flights AF2224 varies Fr Su · AF8672 21:23 daily · AF3726 23:31 Tu We Th
Air New ZealandNZ
Flights NZ9019 10:59 Mo Th Fr Sa Su · NZ9023 11:54 daily · NZ9020 12:49 daily · NZ9021 13:34 Mo Th Fr Su
Asiana AirlinesOZ
Flights OZ9530 21:50 daily
Delta Air LinesDL
Flights DL977 07:45 daily · DL860 10:05 daily · DL1655 17:45 daily · DL2919 varies Mo Tu We Th Sa Su
El Al AirlinesLY
Flights LY4578 varies Mo Tu Th Su · LY4227 13:43 Mo Tu Th Su
Etihad AirwaysEY
Flights EY8015 00:25 Tu We · EY8330 19:35 Mo Tu We Th Fr Su · EY8011 20:55 Sa · EY8038 20:55 Mo Th Fr Su
IcelandairFI
Flights FI7897 00:25 Mo Tu We Th Fr Su
ITA AirwaysAZ
Flights AZ4385 21:50 We Fr Su
Japan AirlinesJL
Flights JL5938 00:25 daily
JetBlue AirwaysB680% on time
Flights B6633 06:00 daily · B6833 09:30 daily · B6733 15:50 daily · B6933 17:05 Mo Th Fr Su
KLMKL
Flights KL5777 21:23 Fr Sa Su
LATAM ChileLA
Flights LA6139 21:23 daily · LA6228 23:31 Tu We
Scandinavian Airlines (SAS)SK
Flights SK3585 21:23 Mo Tu Th Fr Sa Su
Singapore AirlinesSQ
Flights SQ1539 00:25 daily
TAP Air PortugalTP
Flights TP4399 00:25 daily · TP4401 varies Mo Tu Th Fr Sa Su
United AirlinesUA
Flights UA1023 07:10 Mo Th Fr Sa Su · UA582 08:05 daily · UA574 09:00 daily · UA1074 09:45 Mo Th Fr Su
Virgin AustraliaVA
Flights VA8311 10:59 Mo Th Fr Sa Su · VA8310 11:54 daily · VA8520 12:49 daily · VA8313 13:34 Mo Th Fr Su
WestJetWS
Flights WS7646 13:43 Mo Th Fr Su
History
operated legs · board outcomes11-12EY8038arrived+31
11-12EY8330arrived+6
11-12NZ9024arrived+16
11-12OZ9530arrived+16
11-12TP4401arrived+31
11-12VA8312arrived+16
Actual 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
Conditions are tightest at BOS: a 50% chance of a 15+ minute delay. In this weather, the more delayed of the two airports is typically about +16 min. Both figures come from the two airports' delay records in similar weather. See live delays → · Weather risk by airport →
next sweep in 120s
How the Boston to San Francisco route actually runs
Pro Flight Search records official board updates for nonstop BOS to SFO 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 Francisco (SFO) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/BOS-SFO
BOS to SFO questions
Is BOS–SFO running on time right now?
Significant delay risk. The departure side at BOS is the weaker end, route health score 50/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on BOS–SFO?
Operators schedule morning departures around 06:00 and evening departures around 17:05 from BOS. Earlier flights typically land before destination-airport delays accumulate later in the day; check the SFO delay card to confirm conditions when you'd arrive.
How long is the flight from BOS to SFO?
Great-circle distance is 4,341 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 336–402 min gate-to-gate on this route.
How often does BOS–SFO fly?
18 carriers operate this route, around 268 flights a week between them. Compare carrier days and times in the airline list above.
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