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 1 time in 3 at 12 pm and almost half the time at 6 pm.

Nonstops


American	CLT	BUF	1h 46m	73%	1.6%	1,164	Flying now
Southwest	CLT	BUF	–	100%few flights	0.0%	1	Not 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.


American Details →	CLT 05:45 → PHL 07:27AA 2727	1h 17m Philadelphia	PHL 08:44 → BUF 10:18AA 5925 · flown by Piedmont	4h 32m	95%	89%
American Details →	CLT 08:55 → BOS 11:08AA 1533	2h 47m Boston	BOS 13:55 → BUF 15:44AA 4440 · flown by Republic	6h 49m	100%	88%
Southwest Details →	CLT 07:50 → BWI 09:20WN 4695	1h 30m Baltimore	BWI 10:50 → BUF 12:05WN 762	4h 15m	96%	82%
Delta Details →	CLT 05:30 → ATL 06:42DL 3186	2h 22m Atlanta	ATL 09:04 → BUF 11:09DL 1384	5h 39m	99%	82%
United Details →	CLT 06:00 → IAD 07:29UA 6279 · flown by Mesa	56m Dulles	IAD 08:25 → BUF 09:51UA 3514 · flown by Republic	3h 51m	91%	81%
Delta Details →	CLT 09:42 → ATL 11:01DL 3174	2h 59m Atlanta	ATL 14:00 → BUF 16:06DL 2266	6h 24m	100%	80%
Delta Details →	CLT 11:12 → MSP 12:59DL 1827	2h 23m Minneapolis	MSP 15:22 → BUF 18:27DL 1749	7h 15m	96%	80%
United Details →	CLT 10:35 → ORD 11:59UA 4680 · flown by SkyWest	1h 56m Chicago	ORD 13:55 → BUF 16:41UA 2226	6h 06m	97%	77%
Tight connection: often missed
Delta Details →	CLT 19:26 → JFK 21:39DL 5067 · flown by Endeavor	1h 01m New York	JFK 22:40 → BUF 00:38 +1DL 5264 · flown by Endeavor	5h 12m	69%	48%
Delta Details →	CLT 09:36 → LGA 11:32DL 5068 · flown by Endeavor	46m New York	LGA 12:18 → BUF 13:50DL 5362 · flown by Endeavor	4h 15m	67%	47%
American Details →	CLT 16:30 → LGA 18:29AA 1722	1h 00m New York	LGA 19:29 → BUF 21:07AA 4521 · flown by Republic	4h 37m	54%	36%

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

PHL · 1h 17m · leaves 05:45 5%

IAD · 56m · leaves 06:00 9%

DFW · 1h 07m · leaves 08:56 15%

Afternoon and evening

JFK · 1h 01m · leaves 19:26 31%

EWR · 1h 00m · leaves 17:51 32%

LGA · 1h 00m · leaves 16:30 46%

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 5648 CLT 06:05 → BOS JetBlue B6 1215 BOS 11:05 → BUF Connection details →	2h 31m	6h 31m	97%	85%
American AA 5039 CLT 09:10 → ATL Delta DL 2266 ATL 14:00 → BUF Connection details →	3h 19m	6h 56m	100%	81%
American AA 1635 CLT 08:00 → BWI Southwest WN 894 BWI 13:00 → BUF Connection details →	3h 34m	6h 15m	100%	79%

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