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 90-minute layover misses 2% of the time at 9 am and 14% of the time at 4 pm.

Nonstops


Delta	JAX	BOS	2h 48m	79%	1.7%	956	Flying now
JetBlue	JAX	BOS	2h 42m	69%	3.2%	657	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 →	JAX 06:19 → CLT 07:46AA 1834	1h 09m Charlotte	CLT 08:55 → BOS 11:08AA 1533	4h 49m	93%	89%
Delta Details →	JAX 05:30 → ATL 06:42DL 2722	1h 53m Atlanta	ATL 08:35 → BOS 11:14DL 2432	5h 44m	98%	89%
United Details →	JAX 06:24 → EWR 08:48UA 2673	3h 11m Newark	EWR 11:59 → BOS 13:16UA 1669	6h 52m	100%	82%
Delta Details →	JAX 07:00 → ATL 08:15DL 2450	1h 45m Atlanta	ATL 10:00 → BOS 12:44DL 855	5h 44m	99%	82%
American Details →	JAX 08:00 → MIA 09:20AA 3492 · flown by Envoy	1h 30m Miami	MIA 10:50 → BOS 14:22AA 1565	6h 21m	100%	82%
Southwest Details →	JAX 06:55 → BWI 08:50WN 1181	1h 50m Baltimore	BWI 10:40 → BOS 12:10WN 887	5h 15m	100%	80%
American Details →	JAX 07:00 → MIA 08:19AA 3607 · flown by Envoy	1h 04m Miami	MIA 09:23 → BOS 12:48AA 1589	5h 47m	97%	79%
Delta Details →	JAX 08:20 → ATL 09:36DL 2569	1h 34m Atlanta	ATL 11:10 → BOS 13:47DL 862	5h 27m	96%	79%
Tight connection: often missed
United Details →	JAX 16:48 → EWR 19:12UA 2796	1h 13m Newark	EWR 20:25 → BOS 21:53UA 2058	5h 05m	67%	38%
American Details →	JAX 14:25 → DFW 16:12AA 1998	1h 15m Dallas-Fort Worth	DFW 17:27 → BOS 22:17AA 2306	7h 52m	72%	37%
American Details →	JAX 19:59 → CLT 21:36AA 1991	50m Charlotte	CLT 22:26 → BOS 00:37 +1AA 1843	4h 38m	43%	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

MIA · 1h 04m · leaves 07:00 3%

EWR · 1h 12m · leaves 06:24 3%

ORD · 1h 13m · leaves 07:20 4%

Afternoon and evening

BWI · 1h 05m · leaves 19:30 50%

CLT · 50m · leaves 19:59 57%

MIA · 48m · leaves 19:37 68%

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 2155 JAX 06:20 → BNA JetBlue B6 806 BNA 08:40 → BOS Connection details →	1h 50m	5h 53m	98%	89%
American AA 1834 JAX 06:19 → CLT Delta DL 5626 CLT 09:40 → BOS Connection details →	1h 54m	5h 49m	93%	80%
Delta DL 5797 JAX 06:15 → LGA American AA 4367 LGA 10:30 → BOS Connection details →	1h 52m	5h 38m	92%	75%

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