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 44% of the time at 3 pm.

Nonstops


JetBlue	LAS	BOS	5h 10m	76%	1.3%	1,046	Flying now
Delta	LAS	BOS	5h 05m	75%	1.4%	564	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 Las Vegas). Layovers up to 4 hours. Pick a connection for the details.


United Details →	LAS 23:59 → ORD 05:40UA 726	1h 53m Chicago	ORD 07:33 → BOS 11:05 +1UA 1076	8h 06m	100%	94%
American Details →	LAS 23:45 → CLT 07:04AA 2751	1h 51m Charlotte	CLT 08:55 → BOS 11:08 +1AA 1533	8h 23m	98%	94%
Southwest Details →	LAS 23:55 → MDW 05:25WN 2276	3h 45m Chicago	MDW 09:10 → BOS 12:28 +1WN 1405	9h 33m	100%	92%
Delta Details →	LAS 22:00 → ATL 05:00DL 879	3h 35m Atlanta	ATL 08:35 → BOS 11:14 +1DL 2432	10h 14m	100%	90%
United Details →	LAS 18:10 → DEN 21:11UA 1291	2h 48m Denver	DEN 23:59 → BOS 05:58 +1UA 2656	8h 48m	96%	86%
Southwest Details →	LAS 22:10 → BWI 05:45WN 2208	2h 30m Baltimore	BWI 08:15 → BOS 09:50 +1WN 884	8h 40m	100%	86%
American Details →	LAS 00:59 → ORD 06:45AA 2949	1h 45m Chicago	ORD 08:30 → BOS 12:07AA 4106 · flown by Envoy	8h 08m	98%	86%
United Details →	LAS 11:30 → SFO 13:12UA 574	3h 03m San Francisco	SFO 16:15 → BOS 01:11 +1UA 2001	10h 41m	97%	86%
Tight connection: often missed
American Details →	LAS 23:49 → ORD 05:37AA 2040	1h 17m Chicago	ORD 06:54 → BOS 10:28 +1AA 2968	7h 39m	75%	60%
United Details →	LAS 19:52 → SFO 21:34UA 1267	1h 31m San Francisco	SFO 23:05 → BOS 08:01 +1UA 1665	9h 09m	69%	57%
American Details →	LAS 13:08 → PHX 14:24AA 1466	51m Phoenix	PHX 15:15 → BOS 23:14AA 567	7h 06m	57%	40%

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 19m · leaves 06:00 1%

DEN · 1h 08m · leaves 05:30 2%

PHL · 1h 20m · leaves 23:20 7%

Afternoon and evening

DEN · 1h 05m · leaves 15:00 53%

SAN · 1h 16m · leaves 18:19 55%

STL · 50m · leaves 13:50 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.


United UA 726 LAS 23:59 → ORD American AA 4106 ORD 08:30 → BOS Connection details →	2h 50m	9h 08m	100%	91%
Southwest WN 2191 LAS 23:25 → BNA JetBlue B6 806 BNA 08:40 → BOS Connection details →	3h 40m	9h 48m	100%	91%
Delta DL 2794 LAS 22:14 → CVG American AA 3807 CVG 07:10 → BOS Connection details →	2h 10m	8h 11m	94%	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