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: JetBlue RSW → BUF (2h 50m), on time 73% of the time. Southwest via Midway (5h 12m) is more reliable, 90%, but takes 2h 22m longer.

Nonstops (seasonal or thin)


JetBlue	RSW	BUF	2h 50m	75%	3.6%	55	Flying now
Southwest	RSW	BUF	2h 50m	78%	1.5%	68	Not flying now
Frontier	RSW	BUF	2h 58m	82%few flights	0.0%	11	Not flying now

Best connections, any airlines

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.


Southwest Details →	RSW 05:10 → MDW 07:00WN 1243	52m Chicago	MDW 07:52 → BUF 10:25WN 758	5h 12m	96%	90%
American Details →	RSW 06:22 → CLT 08:20AA 1097	2h 50m Charlotte	CLT 11:10 → BUF 12:54AA 1616	6h 33m	99%	86%
Southwest Details →	RSW 06:30 → BWI 08:50WN 3463	2h 00m Baltimore	BWI 10:50 → BUF 12:05WN 762	5h 35m	100%	85%
Delta Details →	RSW 05:37 → ATL 07:23DL 1385	1h 41m Atlanta	ATL 09:04 → BUF 11:09DL 1384	5h 32m	96%	82%
Delta Details →	RSW 10:48 → ATL 12:27DL 1089	1h 33m Atlanta	ATL 14:00 → BUF 16:06DL 2266	5h 18m	95%	76%
United Details →	RSW 11:59 → IAD 14:30UA 2054	3h 00m Dulles	IAD 17:30 → BUF 19:03UA 4823 · flown by CommuteAir	7h 04m	100%	72%
United Details →	RSW 12:15 → EWR 15:12UA 2624	1h 25m Newark	EWR 16:37 → BUF 18:05UA 3607 · flown by Republic	5h 50m	91%	71%
Delta + JetBluetwo ticketsDetails →	RSW 10:50 → BOS 14:07DL 2373	3h 33m Boston	BOS 17:40 → BUF 19:19B6 1115	8h 29m	100%	70%
Tight connection: often missed
American Details →	RSW 18:24 → DCA 20:59AA 2454	1h 31m Washington	DCA 22:30 → BUF 23:56AA 5054 · flown by PSA	5h 32m	74%	27%
American Details →	RSW 17:24 → ORD 19:54AA 2437	1h 38m Chicago	ORD 21:32 → BUF 00:38 +1AA 403	6h 48m	67%	24%

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 · 1h 02m · leaves 07:00 4%

Afternoon and evening

ATL · 1h 15m · leaves 18:34 25%

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.

The table above includes two-ticket connections (marked “two tickets”), held to the 90-minute minimum. One ticket only →

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