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 5% of the time at 8 am and 58% of the time at 7 pm.

Nonstops


Delta	BOS	LAS	6h 00m	79%	1.2%	564	Flying now
JetBlue	BOS	LAS	5h 59m	75%	1.2%	1,045	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Las Vegas on time. Total trip = scheduled departure to arrival, layover included (Las Vegas is 3 h behind Boston). Layovers up to 4 hours. Pick a connection for the details.


United Details →	BOS 09:25 → IAD 11:07UA 2098	1h 53m Dulles	IAD 13:00 → LAS 15:09UA 2156	8h 44m	98%	87%
Southwest Details →	BOS 05:30 → BWI 07:05WN 727	2h 30m Baltimore	BWI 09:35 → LAS 11:35WN 974	9h 05m	96%	86%
United Details →	BOS 05:47 → IAH 08:50UA 1409	3h 05m Houston	IAH 11:55 → LAS 13:13UA 1524	10h 26m	98%	86%
United Details →	BOS 06:00 → ORD 07:58UA 1414	3h 02m Chicago	ORD 11:00 → LAS 13:05UA 2440	10h 05m	100%	85%
United Details →	BOS 06:05 → EWR 07:29UA 1833	1h 31m Newark	EWR 09:00 → LAS 11:28UA 1631	8h 23m	97%	85%
United Details →	BOS 08:00 → EWR 09:23UA 570	3h 02m Newark	EWR 12:25 → LAS 14:53UA 1864	9h 53m	99%	83%
Southwest Details →	BOS 06:25 → DEN 08:50WN 4156	2h 10m Denver	DEN 11:00 → LAS 11:55WN 1561	8h 30m	100%	83%
United Details →	BOS 06:21 → LAX 09:35UA 360	3h 37m Los Angeles	LAX 13:12 → LAS 14:34UA 2741	11h 13m	100%	83%
Tight connection: often missed
Delta Details →	BOS 17:05 → JFK 18:43DL 5814 · flown by Republic	46m New York	JFK 19:29 → LAS 22:20DL 568	8h 15m	50%	32%
American Details →	BOS 17:07 → PHX 19:50AA 3313	46m Phoenix	PHX 20:36 → LAS 21:43AA 2106	7h 36m	47%	30%
American Details →	BOS 17:38 → ORD 19:59AA 1592	1h 00m Chicago	ORD 20:59 → LAS 22:54AA 1465	8h 16m	38%	16%

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 20m · leaves 07:25 2%

DTW · 1h 20m · leaves 05:30 3%

MSP · 1h 09m · leaves 05:55 4%

Afternoon and evening

PHL · 53m · leaves 19:37 61%

ORD · 1h 00m · leaves 17:38 62%

STL · 55m · leaves 18:50 65%

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.


JetBlue B6 319 BOS 16:20 → SAN Southwest WN 3510 SAN 22:40 → LAS Connection details →	3h 10m	10h 52m	96%	89%
American AA 3324 BOS 05:10 → ORD United UA 2440 ORD 11:00 → LAS Connection details →	3h 56m	10h 55m	99%	85%
Southwest WN 4156 BOS 06:25 → DEN United UA 526 DEN 11:22 → LAS Connection details →	2h 32m	8h 59m	99%	82%

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