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 7 am and 17% of the time at 5 pm.

Nonstops


JetBlue	BOS	JAX	2h 57m	77%	3.3%	657	Flying now
Delta	BOS	JAX	3h 05m	75%	2.2%	953	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	BOS 05:30 → ATL 08:15DL 2242	1h 15m Atlanta	ATL 09:30 → JAX 10:43DL 2356	5h 13m	100%	86%
American Details →	BOS 05:10 → ORD 07:04AA 3324	1h 56m Chicago	ORD 09:00 → JAX 12:41AA 4740 · flown by Republic	7h 31m	99%	86%
United Details →	BOS 05:45 → IAD 07:23UA 1734	1h 09m Dulles	IAD 08:32 → JAX 10:42UA 2084	4h 57m	98%	84%
United Details →	BOS 07:25 → IAH 10:35UA 226	1h 35m Houston	IAH 12:10 → JAX 15:37UA 4048 · flown by Mesa	8h 12m	99%	81%
American Details →	BOS 06:00 → PHL 07:37AA 1146	53m Philadelphia	PHL 08:30 → JAX 10:57AA 2916	4h 55m	93%	80%
Southwest Details →	BOS 05:30 → BWI 07:05WN 727	1h 10m Baltimore	BWI 08:15 → JAX 10:20WN 969	4h 50m	95%	80%
United Details →	BOS 08:00 → EWR 09:23UA 570	3h 38m Newark	EWR 13:01 → JAX 15:42UA 2678	7h 42m	99%	79%
Southwest Details →	BOS 05:25 → MDW 07:00WN 3239	1h 40m Chicago	MDW 08:40 → JAX 12:00WN 4499	6h 35m	97%	78%
Tight connection: often missed
American Details →	BOS 15:15 → MIA 18:58AA 1565	1h 10m Miami	MIA 20:08 → JAX 21:33AA 3893 · flown by Envoy	6h 18m	71%	48%
American Details →	BOS 14:26 → CLT 17:00AA 1611	47m Charlotte	CLT 17:47 → JAX 19:14AA 1991	4h 49m	67%	35%
JetBlue Details →	BOS 19:05 → JFK 20:36B6 817	54m New York	JFK 21:30 → JAX 00:19 +1B6 1677	5h 14m	53%	28%

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

ATL · 1h 15m · leaves 05:30 0%

IAD · 1h 09m · leaves 05:45 2%

JFK · 1h 20m · leaves 06:06 3%

Afternoon and evening

EWR · 50m · leaves 19:00 38%

JFK · 54m · leaves 19:05 47%

DCA · 46m · leaves 17:23 63%

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.


American AA 3324 BOS 05:10 → ORD United UA 2427 ORD 10:42 → JAX Connection details →	3h 38m	9h 17m	99%	77%
JetBlue B6 917 BOS 05:15 → JFK Delta DL 5483 JFK 08:45 → JAX Connection details →	2h 17m	6h 13m	99%	75%
Frontier F9 3085 BOS 06:00 → ATL Delta DL 3024 ATL 12:33 → JAX Connection details →	3h 27m	7h 43m	99%	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