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 83% on time.

Nonstops (seasonal or thin)


Southwest	PIT	AUS	3h 15m	83%	0.3%	296	Flying now
Allegiant	PIT	AUS	3h 00m	80%few flights	0.0%	25	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Austin on time. Total trip = scheduled departure to arrival, layover included (Austin is 1 h behind Pittsburgh). Layovers up to 4 hours. Pick a connection for the details.


United Details →	PIT 06:06 → IAD 07:18UA 3679 · flown by Republic	1h 12m Dulles	IAD 08:30 → AUS 10:56UA 637	5h 50m	98%	90%
Southwest Details →	PIT 06:00 → DAL 07:50WN 4465	1h 10m Dallas	DAL 09:00 → AUS 10:00WN 4172	5h 00m	96%	89%
Southwest Details →	PIT 05:32 → DEN 06:55WN 3368	3h 05m Denver	DEN 10:00 → AUS 13:20WN 2263	8h 48m	98%	86%
Southwest Details →	PIT 06:45 → STL 07:30WN 3386	55m St Louis	STL 08:25 → AUS 10:25WN 3884	4h 40m	95%	85%
Delta Details →	PIT 05:45 → ATL 07:25DL 1504	3h 40m Atlanta	ATL 11:05 → AUS 12:25DL 2011	7h 41m	99%	84%
Southwest Details →	PIT 05:50 → BWI 07:00WN 4417	1h 08m Baltimore	BWI 08:08 → AUS 10:32WN 865	5h 43m	97%	81%
United Details →	PIT 06:15 → IAH 08:18UA 1859	3h 47m Houston	IAH 12:05 → AUS 13:12UA 1859	7h 57m	100%	81%
Delta Details →	PIT 07:00 → ATL 08:49DL 1383	3h 27m Atlanta	ATL 12:16 → AUS 13:39DL 2104	7h 39m	99%	81%
Tight connection: often missed
Delta Details →	PIT 17:46 → DTW 19:04DL 5766 · flown by Republic	1h 05m Detroit	DTW 20:09 → AUS 22:11DL 2578	5h 25m	71%	50%
American Details →	PIT 19:36 → DFW 21:43AA 2307	1h 07m Dallas-Fort Worth	DFW 22:50 → AUS 23:51AA 1588	5h 17m	70%	36%
Southwest Details →	PIT 20:15 → STL 21:00WN 3387	55m St Louis	STL 21:55 → AUS 23:55WN 4515	4h 40m	46%	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

IAD · 1h 12m · leaves 06:06 2%

BWI · 1h 08m · leaves 05:50 3%

DTW · 1h 11m · leaves 10:25 4%

Afternoon and evening

DFW · 1h 07m · leaves 19:36 30%

MDW · 55m · leaves 20:10 32%

STL · 55m · leaves 20:15 54%

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.


Southwest WN 3368 PIT 05:32 → DEN Delta DL 3876 DEN 09:35 → AUS Connection details →	2h 40m	8h 17m	98%	82%
American AA 4587 PIT 08:51 → JFK Delta DL 1643 JFK 13:40 → AUS Connection details →	3h 10m	8h 59m	99%	81%
Southwest WN 3369 PIT 10:55 → DEN Frontier F9 1816 DEN 15:50 → AUS Connection details →	3h 35m	9h 11m	100%	80%

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