AA3401American Airlines · BOS → BUF
live · 18m ago
Route confirmed American Airlines

AA3401 BostonBOS · 14:15 BuffaloBUF · 15:57

AA3401 by American Airlines flies from Boston (BOS) to Buffalo (BUF) for the Wed, Oct 21 departure.

Right nowOn Time · gate B15
14:15

departs BOS · on schedule

Typical gate push+16 minmedian posted departure
Typical arrival+40 minmedian over 3 operations

Where the minutes go

last 4 operations · gate push → arrival
0+30+60+90 min
10-21
+40 arrival
10-20
+49 gate · +40 arrival
10-19
+16 gate · −6 arrival
10-18
−7 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
BOSBostonModerate riskBOS delay board →
BUFBuffaloOn-time likelyBUF delay board →
BOS→BUFevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
44%Chance of 15+ min delay
3.7%Chance of cancellation
+10 minAvg hub delay right now

Conditions at BOS and BUF are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, 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 →

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
AA4439departs 19:50

If AA3401 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 posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How AA3401 actually runs

Pro Flight Search has tracked every published board update for AA3401 across the BOS and BUF boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 3 completed legs so far: landed +40 min. Not enough to call it.

The verdict above is that record speaking, so it reflects how AA3401 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
10-21BOS 14:15BUF 15:57 16:37 (+40)
10-20BOS 14:15 15:04 (+49)BUF 15:57 16:37 (+40)
10-19BOS 14:15 14:31 (+16)BUF 15:57 15:51 (−6)
10-18BOS 14:15 14:08 (−7)BUF

Aircraft

Recent tails: N236NN, N274NN.

Board clocks recorded as BOS and BUF published them.

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 — AA3401 Boston to Buffalo on-time performance, measured from the BOS and BUF airport boards.

Canonical URL
https://proflightsearch.com/flight/AA3401
How we measure this →