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 8% of the time at 8 am and 38% of the time at 7 pm.

Nonstops


Delta	JFK	BOS	1h 25m	77%	3.7%	1,791	Flying now
American	JFK	BOS	1h 20m	76%	5.0%	1,466	Flying now
JetBlue	JFK	BOS	1h 23m	70%	4.3%	2,419	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Boston on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.


American Details →	JFK 05:59 → CLT 07:57AA 2643	58m Charlotte	CLT 08:55 → BOS 11:08AA 1533	5h 09m	92%	87%
American Details →	JFK 06:30 → DCA 07:59AA 4538 · flown by Republic	1h 41m Washington	DCA 09:40 → BOS 11:24AA 4691 · flown by Republic	4h 54m	95%	82%
Delta Details →	JFK 06:00 → ATL 08:24DL 2286	2h 46m Atlanta	ATL 11:10 → BOS 13:47DL 862	7h 47m	99%	81%
American Details →	JFK 05:55 → MIA 09:12AA 655	1h 38m Miami	MIA 10:50 → BOS 14:22AA 1565	8h 26m	97%	78%
Delta Details →	JFK 08:35 → DCA 10:02DL 5750 · flown by Republic	2h 53m Washington	DCA 12:55 → BOS 14:39DL 5592 · flown by Republic	6h 04m	99%	77%
American Details →	JFK 07:59 → CLT 10:07AA 1444	1h 11m Charlotte	CLT 11:18 → BOS 13:33AA 1611	5h 34m	89%	76%
Delta Details →	JFK 14:20 → CVG 16:51DL 5012 · flown by Endeavor	3h 29m Hebron	CVG 20:20 → BOS 22:47DL 5620 · flown by Republic	8h 27m	98%	75%
Delta Details →	JFK 07:44 → BNA 09:20DL 4919 · flown by Endeavor	1h 55m Nashville	BNA 11:15 → BOS 14:59DL 2141	7h 16m	96%	73%
Tight connection: often missed
American Details →	JFK 16:00 → MIA 19:26AA 1479	54m Miami	MIA 20:20 → BOS 23:41AA 2539	7h 41m	66%	38%
American Details →	JFK 17:25 → MIA 20:59AA 688	46m Miami	MIA 21:45 → BOS 00:59 +1AA 1054	7h 34m	65%	36%
American Details →	JFK 15:30 → CLT 17:44AA 1294	50m Charlotte	CLT 18:34 → BOS 20:59AA 2595	5h 29m	44%	25%

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

TPA · 1h 19m · leaves 07:05 7%

MCO · 1h 20m · leaves 07:05 7%

CLT · 58m · leaves 05:59 8%

Afternoon and evening

MIA · 46m · leaves 17:25 35%

RDU · 46m · leaves 16:50 38%

CLT · 50m · leaves 15:30 56%

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 1602 JFK 06:35 → BUF American AA 4666 BUF 11:22 → BOS Connection details →	3h 22m	6h 22m	98%	86%
Delta DL 5052 JFK 07:10 → CLT American AA 1611 CLT 11:18 → BOS Connection details →	2h 01m	6h 23m	91%	80%
American AA 2643 JFK 05:59 → CLT Delta DL 5626 CLT 09:40 → BOS Connection details →	1h 43m	6h 09m	92%	79%

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