Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

Connect in the morning. The same 50-minute layover misses 17% of the time at 11 am and barely half the time at 4 pm.

Nonstops


American	PHL	BUF	1h 29m	80%	2.9%	1,361	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Buffalo on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.


United Details →	PHL 06:10 → IAD 07:19UA 3693 · flown by Republic	1h 06m Dulles	IAD 08:25 → BUF 09:51UA 3514 · flown by Republic	3h 41m	97%	87%
American Details →	PHL 08:27 → BOS 09:56AA 2783	3h 59m Boston	BOS 13:55 → BUF 15:44AA 4440 · flown by Republic	7h 17m	98%	86%
American Details →	PHL 06:00 → CLT 07:53AA 3139	3h 17m Charlotte	CLT 11:10 → BUF 12:54AA 1616	6h 55m	99%	85%
Delta Details →	PHL 05:15 → ATL 07:22DL 1269	1h 42m Atlanta	ATL 09:04 → BUF 11:09DL 1384	5h 54m	96%	82%
Delta Details →	PHL 11:40 → MSP 13:25DL 2688	1h 57m Minneapolis	MSP 15:22 → BUF 18:27DL 1749	6h 47m	96%	78%
JetBlue Details →	PHL 08:49 → BOS 10:10B6 1160	55m Boston	BOS 11:05 → BUF 12:36B6 1215	3h 47m	82%	73%
Delta Details →	PHL 06:10 → DTW 07:50DL 1540	2h 15m Detroit	DTW 10:05 → BUF 11:24DL 3636 · flown by SkyWest	5h 14m	96%	73%
Delta Details →	PHL 10:40 → ATL 12:54DL 1100	1h 06m Atlanta	ATL 14:00 → BUF 16:06DL 2266	5h 26m	91%	72%
Tight connection: often missed
United Details →	PHL 11:38 → ORD 13:06UA 2207	49m Chicago	ORD 13:55 → BUF 16:41UA 2226	5h 03m	64%	51%
American Details →	PHL 17:30 → BOS 18:57AA 1776	1h 03m Boston	BOS 20:00 → BUF 21:50AA 4616 · flown by Republic	4h 20m	64%	41%
Frontier Details →	PHL 12:54 → MCO 15:30F9 4173	47m Orlando	MCO 16:17 → BUF 19:12F9 3262	6h 13m	48%	33%

Same layover, different day-part

How often the first flight arrives too late to connect (45 min minimum), for one-ticket layovers of 45–80 minutes.

Morning

IAD · 1h 06m · leaves 06:10 3%

CLT · 52m · leaves 08:20 16%

DFW · 52m · leaves 08:20 17%

Afternoon and evening

CLT · 1h 05m · leaves 13:49 19%

BOS · 1h 03m · leaves 17:30 36%

MCO · 47m · leaves 12:54 52%

Delays build through the day, so an afternoon first leg eats the layover. A short connection is fine early in the morning and a gamble later on.

Mixing airlines

One ticketMiss it and the airline rebooks you; bags go through. 45 min is enough.

Separate ticketsMiss it and you buy a new ticket. Re-check bags, clear security again: we require 90 min.


Delta DL 5740 PHL 06:00 → BOS JetBlue B6 1215 BOS 11:05 → BUF Connection details →	3h 35m	6h 36m	99%	88%
JetBlue B6 1160 PHL 08:49 → BOS American AA 4440 BOS 13:55 → BUF Connection details →	3h 45m	6h 55m	98%	84%
American AA 4338 PHL 09:32 → ATL Delta DL 2266 ATL 14:00 → BUF Connection details →	2h 07m	6h 34m	100%	82%

Rank all connections, any airlines →

Regional partners count as the airline that sells them: SkyWest flying Delta Connection is one Delta ticket.

How these are worked out. Makes the connection: share of the last year’s flights where the first flight arrived with at least 45 minutes to spare (90 on separate tickets). Arrives on time: first flight not cancelled × connection made × second flight not cancelled and arriving within 15 minutes. Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON