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 2% of the time at 9 am and 35% of the time at 10 pm.

Nonstops


Delta	FLL	BOS	3h 17m	73%	3.2%	885	Flying now
JetBlue	FLL	BOS	3h 17m	66%	3.1%	1,953	Flying now
Spirit	FLL	BOS	3h 13m	62%	5.3%	509	Not 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.


Southwest Details →	FLL 06:10 → MDW 08:10WN 1866	1h 00m Chicago	MDW 09:10 → BOS 12:28WN 1405	6h 18m	96%	89%
Delta Details →	FLL 05:25 → ATL 07:20DL 1168	1h 15m Atlanta	ATL 08:35 → BOS 11:14DL 2432	5h 49m	98%	88%
American Details →	FLL 07:44 → CLT 09:53AA 2087	1h 25m Charlotte	CLT 11:18 → BOS 13:33AA 1611	5h 49m	94%	83%
Delta Details →	FLL 06:30 → ATL 08:26DL 1215	1h 34m Atlanta	ATL 10:00 → BOS 12:44DL 855	6h 14m	97%	83%
United Details →	FLL 07:55 → EWR 10:59UA 2330	1h 00m Newark	EWR 11:59 → BOS 13:16UA 1669	5h 21m	96%	81%
Southwest Details →	FLL 05:40 → STL 07:20WN 1874	2h 45m St Louis	STL 10:05 → BOS 13:40WN 3891	8h 00m	98%	80%
American Details →	FLL 06:18 → PHL 09:06AA 444	1h 24m Philadelphia	PHL 10:30 → BOS 12:03AA 1416	5h 45m	96%	79%
United Details →	FLL 07:00 → IAH 08:45UA 2314	1h 05m Houston	IAH 09:50 → BOS 14:48UA 2393	7h 48m	98%	79%
Tight connection: often missed
Delta Details →	FLL 14:31 → ATL 16:40DL 2063	1h 35m Atlanta	ATL 18:15 → BOS 21:01DL 821	6h 30m	72%	49%
JetBlue Details →	FLL 09:10 → JFK 12:08B6 2102	1h 12m New York	JFK 13:20 → BOS 14:43B6 1118	5h 33m	72%	42%
American Details →	FLL 15:57 → PHL 18:53AA 1855	47m Philadelphia	PHL 19:40 → BOS 21:12AA 3327	5h 16m	46%	22%

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

IAH · 1h 05m · leaves 07:00 2%

ATL · 1h 15m · leaves 05:25 2%

MDW · 1h 00m · leaves 06:10 4%

Afternoon and evening

ATL · 56m · leaves 19:46 35%

DFW · 57m · leaves 15:04 48%

PHL · 47m · leaves 15:57 54%

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.


Southwest WN 1540 FLL 05:15 → MCI Delta DL 675 MCI 09:40 → BOS Connection details →	2h 25m	8h 40m	100%	84%
Southwest WN 1874 FLL 05:40 → STL American AA 3814 STL 09:39 → BOS Connection details →	2h 19m	7h 44m	97%	84%
JetBlue B6 306 FLL 06:35 → EWR United UA 1669 EWR 11:59 → BOS Connection details →	2h 30m	6h 41m	96%	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