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 6% of the time at 7 am and 64% of the time at 9 pm.

Nonstops


United	BOS	LAX	6h 25m	77%	1.1%	716	Flying now
Delta	BOS	LAX	6h 21m	77%	1.9%	1,234	Flying now
JetBlue	BOS	LAX	6h 14m	75%	1.8%	1,629	Flying now
American	BOS	LAX	6h 34m	75%	1.6%	1,179	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 Boston). Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	BOS 05:30 → ATL 08:15DL 2242	3h 15m Atlanta	ATL 11:30 → LAX 13:05DL 326	10h 38m	100%	92%
United Details →	BOS 07:45 → DEN 10:19UA 647	3h 07m Denver	DEN 13:26 → LAX 14:57UA 774	10h 12m	100%	89%
American Details →	BOS 06:05 → CLT 08:30AA 418	3h 26m Charlotte	CLT 11:56 → LAX 13:55AA 1213	10h 50m	99%	88%
United Details →	BOS 05:47 → IAH 08:50UA 1409	3h 43m Houston	IAH 12:33 → LAX 14:06UA 2460	11h 19m	100%	86%
Alaska Details →	BOS 07:03 → SEA 10:26AS 459	2h 12m Seattle	SEA 12:38 → LAX 15:25AS 502	11h 22m	98%	86%
United Details →	BOS 09:25 → IAD 11:07UA 2098	2h 03m Dulles	IAD 13:10 → LAX 15:42UA 1689	9h 17m	98%	86%
Alaska Details →	BOS 06:03 → PDX 09:19AS 311	1h 26m Portland	PDX 10:45 → LAX 13:20AS 695	10h 17m	97%	85%
Delta Details →	BOS 06:05 → SLC 09:18DL 859	2h 12m Salt Lake City	SLC 11:30 → LAX 12:30DL 829	9h 25m	99%	85%
Tight connection: often missed
American Details →	BOS 12:21 → JFK 13:50AA 4366 · flown by Republic	50m New York	JFK 14:40 → LAX 17:48AA 255	8h 27m	71%	55%
American Details →	BOS 15:15 → MIA 18:58AA 1565	1h 12m Miami	MIA 20:10 → LAX 22:41AA 3328	10h 26m	73%	46%
American Details →	BOS 17:38 → ORD 19:59AA 1592	50m Chicago	ORD 20:49 → LAX 23:13AA 613	8h 35m	32%	14%

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 17m · leaves 05:10 3%

MSP · 1h 13m · leaves 05:55 3%

ATL · 1h 00m · leaves 05:30 4%

Afternoon and evening

EWR · 55m · leaves 17:44 68%

ORD · 50m · leaves 17:38 68%

DEN · 55m · leaves 17:30 79%

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 1057 BOS 12:53 → PHX United UA 4722 PHX 18:54 → LAX Connection details →	3h 16m	10h 38m	97%	93%
Southwest WN 4156 BOS 06:25 → DEN Frontier F9 2341 DEN 12:32 → LAX Connection details →	3h 42m	10h 44m	100%	90%
Delta DL 859 BOS 06:05 → SLC Southwest WN 3746 SLC 11:20 → LAX Connection details →	2h 02m	9h 10m	96%	89%

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