BUF to BOS flight delays
Buffalo, NY (BUF) Boston, MA (BOS) · 395 miles
169 flights · March 2025 – August 2026 · US Bureau of Transportation Statistics
81.6%
Arrived on time
Within 15 minutes of schedule
3.55%
Cancelled
Share of scheduled flights
68 min
When late, late by
Average across delayed arrivals
13 min
Delay per flight
Averaged over every flight flown
What the record says about this route
Cancellation, not delay, is the risk worth pricing here: 3.55% of scheduled flights never operated. A late flight still gets you there. A cancelled one leaves you rebooking, and on a route with few daily departures that can mean losing a day.
The Buffalo to Boston route sits close to the middle of the record — neither notably punctual nor notably late.
Every airline on BUF to BOS
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| JetBlue Airways | 83 | 77.22% | 4.82% | 80 min | — |
| Republic Airways | 82 | 87.5% | 2.44% | 54 min | — |
| Envoy Air | 4 | 50% | 0% | 25 min | — |
The return leg
BOS to BUF Boston back to Buffalo 79.27% on time CCommon questions
Are flights from Buffalo to Boston usually delayed?
81.6% of flights on the BUF to BOS route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is better than the average route in this record.
How often are BUF to BOS flights cancelled?
3.55% of scheduled flights did not operate — about 36 in every thousand. That is high enough that cancellation, not delay, is the risk worth planning around.
When BUF to BOS flights are late, how late are they?
About 68 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on BUF to BOS during March 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →