Route · BOS → BUF · 2020–2025 BTS data
Boston to Buffalo
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), BOS to BUF (Boston to Buffalo) ranks #2788 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 79.1%
- On-time
- +0.1 pts
- vs US avg
- 75 min
- Delay when late
- 4,268
- Flights
- #2788 of 4927
- Corpus placement
Cancelled
1.3%
Best Month
Apr 2025 94%
Worst Month
Dec 2025 57%
Distance
395 mi
Carriers
7
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 72 | 31 | 6 | 0 | B6 |
| Nov 2025 | 84 | 18 | 0 | 0 | B6 |
| Oct 2025 | 106 | 24 | 2 | 0 | B6 |
| Sep 2025 | 87 | 25 | 1 | 0 | B6 |
| Aug 2025 | 124 | 17 | 1 | 0 | B6 |
| Jul 2025 | 123 | 37 | 1 | 0 | B6 |
| Jun 2025 | 102 | 25 | 0 | 0 | B6 |
| May 2025 | 86 | 12 | 0 | 0 | B6 |
| Apr 2025 | 86 | 5 | 0 | 0 | B6 |
| Mar 2025 | 64 | 19 | 0 | 0 | B6 |
| Feb 2025 | 50 | 16 | 1 | 0 | B6 |
| Jan 2025 | 51 | 11 | 1 | 0 | B6 |
| Dec 2024 | 78 | 12 | 4 | 0 | B6 |
| Nov 2024 | 87 | 13 | 0 | 0 | B6 |
| Oct 2024 | 89 | 10 | 0 | 1 | B6 |
| Sep 2024 | 86 | 9 | 0 | 0 | B6 |
| Aug 2024 | 93 | 23 | 2 | 0 | B6 |
| Jul 2024 | 90 | 19 | 0 | 0 | B6 |
| Jun 2024 | 83 | 19 | 0 | 0 | B6 |
| May 2024 | 88 | 19 | 0 | 0 | B6 |
| Apr 2024 | 61 | 5 | 0 | 0 | B6 |
| Mar 2024 | 62 | 11 | 0 | 0 | B6 |
| Feb 2024 | 57 | 6 | 1 | 0 | B6 |
| Jan 2024 | 55 | 20 | 6 | 0 | B6 |
BOS–BUF seasonal on-time pattern
Best: April (84.8%) · weakest: July (71.1%)
Strongest calendar month
April
84.8% on-time · ~62 flights/mo
Busiest calendar month
March
~88 flights/mo avg
Weakest calendar month
July
71.1% on-time · ~76 flights/mo
Cancellation Rate
1.3%
26 of 1,964 flights
Diversion Rate
0.1%
1 of 1,964 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
BOS - Boston
Full on-time, delay-cause, and seasonal performance for Boston, MA.
BOS on-time profileBUF - Buffalo
Full on-time, delay-cause, and seasonal performance for Buffalo, NY.
BUF on-time profileCompare the two airports
See BOS and BUF side by side on delays, cancellations, and reliability.
Compare BOS vs BUFOrigin-hub reliability standing
Mid-pack among BOS departures
From BOS, this corridor sits with 49 other 75–85% on-time routes out of 60 tracked departures, not the hub's reliability leaders (6 at ≥85%) and not the softest ( 5 below 75%). Destination: Buffalo · fleet on-time rank #3464 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to BOS–BUF.
Routes with a similar on-time rate
What the Data Says About BOS to BUF
4,268 tracked flights put the BOS to BUF pairing (Boston to Buffalo) at a 79.1% on-time rate, squarely in line with the wider network. Delays that do occur run 75.2 minutes on average. Across the 395-mile route and its 7 carriers, the trailing 24 months show 1.3% cancelled and 0.1% diverted (1,964 flights sampled).
The monthly split is wide on this route: Apr 2025 posted the strongest performance at 94% on-time, while Dec 2025 came in at just 57% - a 37-point swing worth factoring into travel timing.
On the multi-year calendar, BOS–BUF peaks in April at 84.8% on-time while March carries the heaviest traffic (~88 flights per month) ; the softest month is July at 71.1%, a 13.7-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does BOS to BUF rank among US routes by traffic? ▼
How often are flights delayed from BOS to BUF? ▼
What is the cancellation rate for BOS to BUF? ▼
How far is the flight from BOS to BUF? ▼
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Airports on this route
Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Using BOS–BUF data
BOS–BUF is mid-pack at 79.1% on-time; month and carrier mix move more than the corridor headline.
- Compare BOS and BUF airport profiles: delay causes and top routes differ even on the same corridor. BOS airport
- If your dates flex, April (84.8% on-time) beats July (71.1%) on this corridor. Seasonal chart
- 4 other routes post a similar 79.1% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.