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 3% of the time at 7 am and 1 time in 3 at 5 pm.

Nonstops


United	EWR	BUF	1h 33m	77%	4.9%	1,066	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 →	EWR 06:00 → IAD 07:22UA 1366	1h 03m Dulles	IAD 08:25 → BUF 09:51UA 3514 · flown by Republic	3h 51m	97%	85%
American Details →	EWR 06:00 → CLT 08:01AA 2505	3h 09m Charlotte	CLT 11:10 → BUF 12:54AA 1616	6h 55m	98%	84%
United Details →	EWR 09:20 → ORD 11:04UA 2290	2h 51m Chicago	ORD 13:55 → BUF 16:41UA 2226	7h 21m	97%	77%
Delta Details →	EWR 08:30 → ATL 10:52DL 2365	3h 08m Atlanta	ATL 14:00 → BUF 16:06DL 2266	7h 36m	96%	76%
Delta Details →	EWR 11:47 → MSP 13:44DL 2864	1h 38m Minneapolis	MSP 15:22 → BUF 18:27DL 1749	6h 40m	93%	75%
Delta Details →	EWR 06:00 → DTW 07:55DL 2596	2h 10m Detroit	DTW 10:05 → BUF 11:24DL 3636 · flown by SkyWest	5h 24m	95%	72%
Delta Details →	EWR 09:39 → DTW 11:33DL 2566	2h 30m Detroit	DTW 14:03 → BUF 15:21DL 3642 · flown by SkyWest	5h 42m	99%	72%
Delta Details →	EWR 16:29 → ATL 19:00DL 2322	2h 49m Atlanta	ATL 21:49 → BUF 23:59DL 2334	7h 30m	95%	70%
Tight connection: often missed
United Details →	EWR 15:08 → IAD 16:32UA 1992	58m Dulles	IAD 17:30 → BUF 19:03UA 4823 · flown by CommuteAir	3h 55m	65%	47%
United Details →	EWR 11:25 → ORD 13:08UA 1875	47m Chicago	ORD 13:55 → BUF 16:41UA 2226	5h 16m	58%	46%
JetBlue Details →	EWR 13:33 → MCO 16:20B6 1827	1h 20m Orlando	MCO 17:40 → BUF 20:28B6 1586	6h 55m	73%	45%

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 03m · leaves 06:00 3%

Afternoon and evening

CLT · 1h 16m · leaves 13:30 10%

MCO · 1h 20m · leaves 13:33 27%

IAD · 58m · leaves 15:08 35%

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.


United UA 593 EWR 07:00 → BOS JetBlue B6 1215 BOS 11:05 → BUF Connection details →	2h 48m	5h 36m	97%	87%
Delta DL 5764 EWR 09:30 → BOS American AA 4440 BOS 13:55 → BUF Connection details →	3h 00m	6h 14m	99%	86%
United UA 2669 EWR 08:45 → ATL Delta DL 2266 ATL 14:00 → BUF Connection details →	2h 52m	7h 21m	96%	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