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 1 time in 5 at 8 am and 36% of the time at 5 pm.

Nonstops


Delta	DTW	BUF	1h 13m	80%	1.4%	1,532	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.


JetBlue Details →	DTW 07:30 → BOS 09:22B6 1236	1h 43m Boston	BOS 11:05 → BUF 12:36B6 1215	5h 06m	97%	86%
American Details →	DTW 07:00 → CLT 08:54AA 1439	2h 16m Charlotte	CLT 11:10 → BUF 12:54AA 1616	5h 55m	97%	85%
Southwest Details →	DTW 05:50 → BWI 07:20WN 4534	3h 30m Baltimore	BWI 10:50 → BUF 12:05WN 762	6h 15m	100%	85%
Delta Details →	DTW 05:17 → ATL 07:10DL 2375	1h 54m Atlanta	ATL 09:04 → BUF 11:09DL 1384	5h 52m	95%	82%
Delta Details →	DTW 08:25 → ATL 10:25DL 1653	3h 35m Atlanta	ATL 14:00 → BUF 16:06DL 2266	7h 41m	99%	81%
Delta Details →	DTW 12:20 → MSP 13:14DL 2697	2h 08m Minneapolis	MSP 15:22 → BUF 18:27DL 1749	6h 07m	97%	80%
United Details →	DTW 11:00 → ORD 11:29UA 426	2h 26m Chicago	ORD 13:55 → BUF 16:41UA 2226	5h 41m	96%	77%
United Details →	DTW 10:13 → IAD 11:50UA 3500 · flown by Republic	1h 09m Dulles	IAD 12:59 → BUF 14:25UA 4335 · flown by CommuteAir	4h 12m	94%	76%
Tight connection: often missed
Frontier Details →	DTW 06:10 → ATL 08:31F9 1263	53m Atlanta	ATL 09:24 → BUF 11:34F9 1408	5h 23m	71%	46%
JetBlue Details →	DTW 18:53 → BOS 20:49B6 1136	1h 21m Boston	BOS 22:10 → BUF 23:43B6 715	4h 50m	60%	36%
American Details →	DTW 15:52 → DFW 17:50AA 1793	55m Dallas-Fort Worth	DFW 18:45 → BUF 22:50AA 574	6h 58m	64%	35%

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 09m · leaves 10:13 6%

LGA · 1h 20m · leaves 06:00 6%

PHL · 53m · leaves 06:05 14%

Afternoon and evening

MCO · 1h 04m · leaves 12:27 25%

BOS · 46m · leaves 14:56 36%

DFW · 55m · leaves 15:52 36%

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 1163 DTW 07:05 → BOS JetBlue B6 1215 BOS 11:05 → BUF Connection details →	1h 58m	5h 31m	95%	85%
American AA 4103 DTW 10:33 → ORD United UA 2226 ORD 13:55 → BUF Connection details →	2h 51m	6h 08m	99%	81%
Delta DL 2481 DTW 07:05 → CLT American AA 1616 CLT 11:10 → BUF Connection details →	2h 18m	5h 50m	94%	81%

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