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 1 time in 10 at 8 am and 44% of the time at 9 pm.

Nonstops


United	LAX	BOS	5h 45m	87%	1.1%	716	Flying now
Delta	LAX	BOS	5h 34m	78%	1.9%	1,236	Flying now
JetBlue	LAX	BOS	5h 37m	77%	1.8%	1,629	Flying now
American	LAX	BOS	5h 31m	76%	1.6%	1,180	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 (Boston is 3 h ahead of Los Angeles). Layovers up to 4 hours. Pick a connection for the details.


United Details →	LAX 22:35 → ORD 04:51UA 353	2h 42m Chicago	ORD 07:33 → BOS 11:05 +1UA 1076	9h 30m	99%	94%
American Details →	LAX 21:41 → CLT 05:24AA 2199	3h 31m Charlotte	CLT 08:55 → BOS 11:08 +1AA 1533	10h 27m	99%	94%
American Details →	LAX 20:52 → MIA 05:01AA 2942	1h 41m Miami	MIA 06:42 → BOS 10:06 +1AA 815	10h 16m	94%	92%
Southwest Details →	LAX 23:55 → MDW 05:55WN 2413	3h 15m Chicago	MDW 09:10 → BOS 12:28 +1WN 1405	9h 33m	100%	90%
Delta Details →	LAX 21:45 → ATL 05:01DL 783	3h 34m Atlanta	ATL 08:35 → BOS 11:14 +1DL 2432	10h 29m	99%	90%
United Details →	LAX 00:51 → IAH 06:12UA 491	1h 18m Houston	IAH 07:30 → BOS 12:28UA 1977	8h 37m	97%	89%
Delta Details →	LAX 17:05 → SLC 19:59DL 2311	3h 32m Salt Lake City	SLC 23:31 → BOS 06:05 +1DL 696	10h 00m	99%	89%
United Details →	LAX 21:30 → IAD 05:36UA 2632	2h 59m Dulles	IAD 08:35 → BOS 10:20 +1UA 641	9h 50m	98%	89%
Tight connection: often missed
American Details →	LAX 11:40 → ORD 18:12AA 1050	1h 08m Chicago	ORD 19:20 → BOS 22:53AA 3107	8h 17m	70%	38%
American Details →	LAX 11:55 → JFK 20:36AA 274	54m New York	JFK 21:30 → BOS 22:59AA 4634 · flown by Republic	7h 59m	56%	34%
United Details →	LAX 07:30 → SFO 09:06UA 1372	59m San Francisco	SFO 10:05 → BOS 18:59UA 2356	8h 29m	49%	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

MDW · 1h 20m · leaves 05:10 0%

IAH · 1h 18m · leaves 05:45 1%

SLC · 1h 20m · leaves 05:35 3%

Afternoon and evening

MIA · 1h 00m · leaves 12:25 40%

JFK · 54m · leaves 11:55 44%

DEN · 1h 00m · leaves 14:45 61%

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 1200 LAX 21:01 → IAD United UA 641 IAD 08:35 → BOS Connection details →	3h 35m	10h 19m	100%	91%
Southwest WN 2382 LAX 23:00 → BNA JetBlue B6 806 BNA 08:40 → BOS Connection details →	3h 40m	10h 13m	100%	91%
United UA 353 LAX 22:35 → ORD American AA 4106 ORD 08:30 → BOS Connection details →	3h 39m	10h 32m	99%	90%

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