Sun, Oct 4 has passed, so this is the 12-month record.

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 BUF → LAX (5h 19m), on time 3 times in 5. United via Denver (8h 57m) is more reliable, 88%, but takes 3h 38m longer.

Nonstops (seasonal or thin)


JetBlue	BUF	LAX	5h 19m	61%	2.9%	137	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Los Angeles on time. Total trip = scheduled departure to arrival, layover included (Los Angeles is 3 h behind Buffalo). Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	BUF 06:00 → ATL 08:10DL 2664	3h 20m Atlanta	ATL 11:30 → LAX 13:05DL 326	10h 08m	99%	89%
United Details →	BUF 10:34 → IAD 11:50UA 3430 · flown by Republic	3h 25m Dulles	IAD 15:15 → LAX 17:47UA 684	10h 13m	100%	89%
United Details →	BUF 09:00 → DEN 10:35UA 1727	2h 51m Denver	DEN 13:26 → LAX 14:57UA 774	8h 57m	97%	88%
American Details →	BUF 06:01 → CLT 08:01AA 1204	3h 55m Charlotte	CLT 11:56 → LAX 13:55AA 1213	10h 54m	98%	87%
American Details →	BUF 05:20 → PHL 06:46AA 5873 · flown by Piedmont	1h 44m Philadelphia	PHL 08:30 → LAX 11:24AA 824	8h 58m	98%	84%
Delta Details →	BUF 09:03 → DTW 10:18DL 3639 · flown by SkyWest	2h 20m Detroit	DTW 12:38 → LAX 14:28DL 634	8h 25m	98%	82%
Delta Details →	BUF 07:00 → JFK 08:30DL 5284 · flown by Endeavor	2h 30m New York	JFK 11:00 → LAX 13:54DL 767	9h 54m	97%	79%
American Details →	BUF 06:00 → DCA 07:29AA 3668 · flown by Envoy	1h 11m Washington	DCA 08:40 → LAX 11:19AA 1966	8h 19m	96%	79%
Tight connection: often missed
United Details →	BUF 13:54 → ORD 14:55UA 4381 · flown by GoJet	52m Chicago	ORD 15:47 → LAX 18:20UA 576	7h 26m	64%	47%
American Details →	BUF 19:40 → PHL 21:10AA 6114 · flown by Piedmont	55m Philadelphia	PHL 22:05 → LAX 00:50 +1AA 738	8h 10m	68%	36%
American Details →	BUF 16:46 → DFW 19:10AA 1615	1h 39m Dallas-Fort Worth	DFW 20:49 → LAX 22:03AA 1084	8h 17m	75%	30%

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

DFW · 1h 20m · leaves 07:01 6%

ORD · 53m · leaves 10:07 6%

CLT · 56m · leaves 06:01 8%

Afternoon and evening

ORD · 1h 05m · leaves 16:48 39%

BWI · 55m · leaves 17:55 39%

MDW · 55m · leaves 19:50 53%

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.


JetBlue B6 716 BUF 06:00 → BOS Delta DL 2004 BOS 10:55 → LAX Connection details →	3h 28m	11h 07m	97%	82%
United UA 1727 BUF 09:00 → DEN Frontier F9 2341 DEN 12:32 → LAX Connection details →	1h 57m	8h 09m	91%	82%
American AA 4413 BUF 10:07 → ORD United UA 1363 ORD 13:00 → LAX Connection details →	1h 51m	8h 27m	96%	80%

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