AA4743American Airlines · BOS → BUF
live · 10m ago
Route confirmed American Airlines

AA4743 BostonBOS · 19:50 BuffaloBUF · 21:35

AA4743 by American Airlines flies from Boston (BOS) to Buffalo (BUF).

Right nowNext departure today Operates daily
19:50

scheduled from BOS

Typical gate push−7 minmedian posted departure
Typical arrival−9 minmedian over 3 operations
Wins back in air~2 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 4 operations · gate push → arrival
0+30+60+90 min
11-06
+14 gate · −9 arrival
11-05
−4 gate · −25 arrival
11-04
−10 gate · +40 arrival
11-03
−11 gate

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The route today

live boards
BOSBostonHigh riskBOS delay board →
BUFBuffaloOn-time likelyBUF delay board →
BOS→BUFevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
39%Chance of 15+ min delay
1.8%Chance of cancellation
+11 minTypical airport delay in this weather

Driven mainly by BUF (Buffalo), currently flying MVFR (marginal visual). These figures come from both airports' records under conditions like today's, over the last 90 days.

Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →

Tomorrow at Boston

Forecast

Mon 9 Nov, local date

High15°Clikely 13°C to 17°C
Low8°Clikely 6°C to 10°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

Tomorrow at Buffalo

Forecast

Mon 9 Nov, local date

High10°Clikely 8°C to 12°C
Low6°Clikely 4°C to 9°C
  • 80% chance of rain

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other Boston to Buffalo flights today

same route · American Airlines
AA4782departs 08:15
AA4425departs 09:55
AA4439departs 12:40
AA3347departs 14:00
AA3401departs 14:15

If AA4743 is cancelled, these are the other American Airlines nonstop flights from Boston to Buffalo on the same day, with scheduled departure times in BOS local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How AA4743 actually runs

Pro Flight Search has tracked every published board update for AA4743 across the BOS and BUF boards: schedule changes, gate pushes and actual clocks. Usually lands ~5 min early. Based on 3 confirmed landings · 2/3 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how AA4743 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
11-06BOS 19:50 20:04 (+14)BUF 21:35 21:26 (−9)
11-05BOS 19:50 19:46 (−4)BUF 21:35 21:10 (−25)
11-04BOS 19:50 19:40 (−10)BUF 21:35 22:15 (+40)
11-03BOS 19:50 19:39 (−11)BUF

Aircraft

Recent tails: N433YX, N114HQ, N410YX.

Board clocks recorded as BOS and BUF published them.

Planning around AA4743? 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: AA4743 Boston to Buffalo on-time performance, measured from the BOS and BUF airport boards.

Canonical URL
https://proflightsearch.com/flight/AA4743
How we measure this →