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

The nonstop is quickest: American BUF → DFW (3h 41m), on time 72% of the time. Delta via Detroit (6h 31m) is more reliable, 82%, but takes 2h 50m longer.

Nonstops (seasonal or thin)


American	BUF	DFW	3h 41m	74%	2.9%	578	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Dallas-Fort Worth on time. Total trip = scheduled departure to arrival, layover included (Dallas-Fort Worth is 1 h behind Buffalo). Layovers up to 4 hours. Pick a connection for the details.


American Details →	BUF 05:20 → PHL 06:46AA 5873 · flown by Piedmont	1h 34m Philadelphia	PHL 08:20 → DFW 11:03AA 1692	6h 43m	98%	84%
Delta Details →	BUF 09:03 → DTW 10:18DL 3639 · flown by SkyWest	2h 27m Detroit	DTW 12:45 → DFW 14:32DL 1041	6h 31m	98%	82%
Delta Details →	BUF 06:00 → ATL 08:10DL 2664	1h 42m Atlanta	ATL 09:52 → DFW 11:12DL 961	6h 16m	97%	80%
American Details →	BUF 06:00 → DCA 07:29AA 3668 · flown by Envoy	2h 31m Washington	DCA 10:00 → DFW 12:21AA 1618	7h 21m	100%	77%
American Details →	BUF 06:01 → CLT 08:01AA 1204	3h 29m Charlotte	CLT 11:30 → DFW 13:16AA 1285	8h 15m	98%	77%
Delta Details →	BUF 17:12 → ATL 19:25DL 2266	3h 29m Atlanta	ATL 22:54 → DFW 00:19 +1DL 818	8h 01m	99%	76%
United Details →	BUF 06:00 → EWR 07:25UA 3420 · flown by Republic	1h 41m Newark	EWR 09:06 → DFW 11:54UA 454	6h 54m	98%	75%
United Details →	BUF 06:15 → IAD 07:34UA 3668 · flown by Republic	56m Dulles	IAD 08:30 → DFW 10:53UA 2471	5h 38m	90%	75%
Tight connection: often missed
American Details →	BUF 16:48 → ORD 18:03AA 4913 · flown by SkyWest	1h 23m Chicago	ORD 19:26 → DFW 22:08AA 3544 · flown by Envoy	6h 20m	65%	40%
American Details →	BUF 13:47 → CLT 15:49AA 1616	49m Charlotte	CLT 16:38 → DFW 18:37AA 2815	5h 49m	62%	33%
United Details →	BUF 18:04 → ORD 19:03UA 2747	47m Chicago	ORD 19:50 → DFW 22:36UA 1673	5h 32m	29%	18%

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

ORD · 50m · leaves 10:07 7%

CLT · 55m · leaves 06:01 9%

LGA · 1h 11m · leaves 06:02 10%

Afternoon and evening

ATL · 1h 10m · leaves 19:24 12%

CLT · 49m · leaves 13:47 38%

ORD · 47m · leaves 18:04 71%

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 757 BUF 09:00 → BWI American AA 2747 BWI 12:00 → DFW Connection details →	1h 45m	6h 27m	86%	79%
Southwest WN 769 BUF 06:25 → TPA American AA 2814 TPA 11:33 → DFW Connection details →	2h 23m	7h 52m	100%	77%
Delta DL 2664 BUF 06:00 → ATL American AA 891 ATL 11:21 → DFW Connection details →	3h 11m	7h 50m	98%	77%

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