PlainFlights

Route · BUF → BWI · 2020–2025 BTS data

Buffalo to Baltimore

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), BUF to BWI (Buffalo to Baltimore) ranks #1269 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

87.7%
On-time
+8.7 pts
vs US avg
62 min
Delay when late
9,345
Flights
#1269 of 4927
Corpus placement

Cancelled

1.3%

Best Month

Oct 2024 97%

Worst Month

Jul 2024 76%

Distance

281 mi

Carriers

1

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 152 23 6 0 WN
Nov 2025 144 18 0 0 WN
Oct 2025 149 25 0 0 WN
Sep 2025 147 10 0 0 WN
Aug 2025 148 19 1 0 WN
Jul 2025 145 32 7 0 WN
Jun 2025 141 30 0 0 WN
May 2025 146 21 0 0 WN
Apr 2025 141 15 1 0 WN
Mar 2025 137 16 3 1 WN
Feb 2025 112 14 0 0 WN
Jan 2025 124 15 7 0 WN
Dec 2024 142 23 0 0 WN
Nov 2024 140 12 0 0 WN
Oct 2024 146 4 1 0 WN
Sep 2024 147 6 1 0 WN
Aug 2024 147 26 1 0 WN
Jul 2024 141 34 0 1 WN
Jun 2024 136 20 0 0 WN
May 2024 147 20 0 0 WN
Apr 2024 142 20 0 0 WN
Mar 2024 139 26 0 0 WN
Feb 2024 111 11 0 0 WN
Jan 2024 134 25 16 0 WN

BUF–BWI seasonal on-time pattern

Best: September (92.3%) · weakest: July (82.1%)

80%85%90%95% JanFebMarAprMayJunJulAugSepOctNovDec 87.2%

Strongest calendar month

September

92.3% on-time · ~134 flights/mo

Busiest calendar month

August

~146 flights/mo avg

Weakest calendar month

July

82.1% on-time · ~143 flights/mo

Cancellation Rate

1.3%

44 of 3,358 flights

Diversion Rate

0.1%

2 of 3,358 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

BUF - Buffalo

Full on-time, delay-cause, and seasonal performance for Buffalo, NY.

BUF on-time profile

BWI - Baltimore

Full on-time, delay-cause, and seasonal performance for Baltimore, MD.

BWI on-time profile

Compare the two airports

See BUF and BWI side by side on delays, cancellations, and reliability.

Compare BUF vs BWI

Origin-hub reliability standing

Among BUF's stronger departures

BUF → BWI posts a 87.7% on-time rate, landing in the ≥85% band with 6 of 19 BTS-tracked routes leaving Buffalo. The same hub also shows 12 mid-band and 1 challenged departures · fleet-wide on-time rank #474 of 4927 (highest on-time = #1).

What the Data Says About BUF to BWI

Buffalo to Baltimore (BUF to BWI) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 87.7% on-time rate across 9,345 flights, with delays that do happen averaging 61.8 minutes. The corridor runs roughly 281 miles and is served by 1 carrier. Over the most recent 24 months, 44 of 3,358 flights were cancelled (1.3%) and 2 diverted (0.1%).

The monthly split is wide on this route: Oct 2024 posted the strongest performance at 97% on-time, while Jul 2024 came in at just 76% - a 21-point swing worth factoring into travel timing.

On the multi-year calendar, BUF–BWI peaks in September at 92.3% on-time while August carries the heaviest traffic (~146 flights per month) ; the softest month is July at 82.1%, a 10.2-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does BUF to BWI rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, BUF to BWI ranks #1269 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from BUF to BWI? ▼
Flights from Buffalo to Baltimore have a 87.7% on-time rate based on 9,345 flights. The average delay is 61.8 minutes. The best recent month was Oct 2024 with 97% on-time.
What is the cancellation rate for BUF to BWI? ▼
Over the last 24 months, 1.3% of flights on this route were cancelled (44 of 3,358 flights) and 0.1% were diverted.
How far is the flight from BUF to BWI? ▼
The flight distance from Buffalo (BUF) to Baltimore (BWI) is approximately 281 miles. This route is served by 1 carrier.
When is the best time to fly from BUF to BWI? ▼
The best recent month for on-time performance was Oct 2024 (97% on-time). The worst was Jul 2024 (76% on-time). Consider booking during months with historically better performance.

Airports on this route

BUF Airport

Buffalo
BWI Airport

Baltimore
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 BUF–BWI data

BUF–BWI runs 8.7 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare BUF and BWI airport profiles: delay causes and top routes differ even on the same corridor. BUF airport
  • If your dates flex, September (92.3% on-time) beats July (82.1%) on this corridor. Seasonal chart
  • 4 other routes post a similar 87.7% 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.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

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.