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 one-hour layover misses 13% of the time at 7 am and 27% of the time at 4 pm.

Nonstops


American	BUF	CLT	2h 02m	80%	1.7%	1,164	Flying now
Southwest	BUF	CLT	–	100%few flights	0.0%	1	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	BUF 09:03 → DTW 10:18DL 3639 · flown by SkyWest	3h 47m Detroit	DTW 14:05 → CLT 15:58DL 1429	6h 55m	100%	85%
United Details →	BUF 07:00 → ORD 08:05UA 5820 · flown by SkyWest	2h 21m Chicago	ORD 10:26 → CLT 13:50UA 3450 · flown by Republic	6h 50m	100%	84%
American Details →	BUF 10:07 → ORD 11:09AA 4413 · flown by Republic	2h 08m Chicago	ORD 13:17 → CLT 16:29AA 3280	6h 22m	98%	84%
Delta Details →	BUF 06:00 → ATL 08:10DL 2664	2h 00m Atlanta	ATL 10:10 → CLT 11:26DL 3190	5h 28m	97%	82%
American Details →	BUF 05:20 → PHL 06:46AA 5873 · flown by Piedmont	1h 34m Philadelphia	PHL 08:20 → CLT 10:18AA 1494	4h 58m	98%	81%
American Details →	BUF 11:22 → BOS 12:55AA 4666 · flown by Republic	1h 31m Boston	BOS 14:26 → CLT 17:00AA 1611	5h 38m	99%	81%
American Details →	BUF 10:44 → PHL 12:10AA 5925 · flown by Piedmont	3h 40m Philadelphia	PHL 15:50 → CLT 17:53AA 2573	7h 09m	96%	80%
American Details →	BUF 07:15 → BOS 08:51AA 4788 · flown by Republic	2h 29m Boston	BOS 11:20 → CLT 13:45AA 3161	6h 30m	98%	80%
Tight connection: often missed
American Details →	BUF 16:14 → BOS 17:52AA 4440 · flown by Republic	1h 04m Boston	BOS 18:56 → CLT 21:34AA 1552	5h 21m	70%	41%
Delta Details →	BUF 14:30 → LGA 15:58DL 5362 · flown by Endeavor	1h 08m New York	LGA 17:06 → CLT 19:32DL 5047 · flown by Endeavor	5h 02m	73%	41%
Southwest Details →	BUF 17:55 → BWI 19:15WN 958	50m Baltimore	BWI 20:05 → CLT 21:40WN 915	3h 50m	42%	21%

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

BWI · 55m · leaves 06:05 5%

ORD · 51m · leaves 10:07 7%

IAD · 53m · leaves 10:34 17%

Afternoon and evening

LGA · 1h 08m · leaves 14:30 27%

BOS · 1h 04m · leaves 16:14 30%

BWI · 50m · leaves 17:55 58%

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.


Southwest WN 769 BUF 06:25 → TPA American AA 2828 TPA 11:56 → CLT Connection details →	2h 46m	7h 28m	100%	89%
Delta DL 2898 BUF 06:29 → DTW American AA 1791 DTW 10:01 → CLT Connection details →	2h 19m	5h 27m	95%	87%
JetBlue B6 85 BUF 07:35 → MCO American AA 2074 MCO 12:48 → CLT Connection details →	2h 33m	7h 10m	97%	85%

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