Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

No clear winner: airlines and hours on this route all land within a few points of 84% on time.

Nonstops (seasonal or thin)


Southwest	PIT	LAS	4h 45m	84%	0.2%	632	Flying now
Spirit	PIT	LAS	4h 47m	81%	0.0%	87	Not 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 Pittsburgh). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	PIT 05:50 → BWI 07:00WN 4417	2h 35m Baltimore	BWI 09:35 → LAS 11:35WN 974	8h 45m	100%	91%
United Details →	PIT 06:15 → IAH 08:18UA 1859	3h 37m Houston	IAH 11:55 → LAS 13:13UA 1524	9h 58m	100%	88%
Southwest Details →	PIT 05:10 → MCO 07:30WN 3374	2h 30m Orlando	MCO 10:00 → LAS 11:45WN 4696	9h 35m	100%	88%
United Details →	PIT 10:30 → IAD 11:42UA 6184 · flown by Mesa	1h 18m Dulles	IAD 13:00 → LAS 15:09UA 2156	7h 39m	96%	85%
Southwest Details →	PIT 05:30 → TPA 07:50WN 4929	2h 40m Tampa	TPA 10:30 → LAS 12:10WN 1809	9h 40m	100%	84%
United Details →	PIT 06:49 → ORD 07:37UA 1803	3h 23m Chicago	ORD 11:00 → LAS 13:05UA 2440	9h 16m	97%	84%
United Details →	PIT 07:25 → EWR 08:58UA 3673 · flown by Republic	3h 27m Newark	EWR 12:25 → LAS 14:53UA 1864	10h 28m	100%	83%
United Details →	PIT 17:55 → LAX 20:07UA 1349	2h 52m Los Angeles	LAX 22:59 → LAS 00:21 +1UA 1546	9h 26m	97%	82%
Tight connection: often missed
United Details →	PIT 14:10 → ORD 14:55UA 2180	59m Chicago	ORD 15:54 → LAS 17:57UA 1875	6h 47m	74%	54%
United Details →	PIT 17:23 → SFO 19:51UA 436	1h 24m San Francisco	SFO 21:15 → LAS 23:10UA 406	8h 47m	59%	45%
Southwest Details →	PIT 20:15 → STL 21:00WN 3387	50m St Louis	STL 21:50 → LAS 23:18WN 3936	6h 03m	38%	23%

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

ORD · 1h 16m · leaves 08:02 3%

IAD · 1h 18m · leaves 10:30 4%

ATL · 1h 06m · leaves 07:00 5%

Afternoon and evening

DFW · 1h 16m · leaves 19:36 27%

IAH · 1h 00m · leaves 17:02 33%

STL · 50m · leaves 20:15 62%

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 4427 PIT 06:23 → ORD United UA 2440 ORD 11:00 → LAS Connection details →	3h 39m	9h 42m	99%	86%
Southwest WN 3374 PIT 05:10 → MCO Frontier F9 1875 MCO 09:19 → LAS Connection details →	1h 49m	9h 19m	96%	86%
American AA 3329 PIT 06:01 → DFW Frontier F9 1051 DFW 11:56 → LAS Connection details →	3h 47m	9h 56m	99%	84%

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