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

No clear winner: Delta’s IND → SLC flights land within a few points of 9 in 10 on time whatever the hour.

Nonstops (seasonal or thin)


Delta	IND	SLC	3h 35m	89%	1.4%	364	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Salt Lake City on time. Total trip = scheduled departure to arrival, layover included (Salt Lake City is 2 h behind Indianapolis). Layovers up to 4 hours. Pick a connection for the details.


American Details →	IND 06:01 → PHX 06:44AA 1773	1h 55m Phoenix	PHX 08:39 → SLC 11:37AA 6422 · flown by SkyWest	7h 36m	100%	91%
Delta Details →	IND 06:00 → ATL 07:39DL 3105	2h 26m Atlanta	ATL 10:05 → SLC 12:10DL 387	8h 10m	99%	89%
Delta Details →	IND 08:05 → ATL 09:44DL 1901	2h 10m Atlanta	ATL 11:54 → SLC 13:50DL 663	7h 45m	99%	87%
Delta Details →	IND 07:47 → DTW 09:03DL 4897 · flown by Endeavor	3h 22m Detroit	DTW 12:25 → SLC 14:19DL 935	8h 32m	97%	84%
Southwest Details →	IND 06:10 → DEN 06:50WN 1365	55m Denver	DEN 07:45 → SLC 09:20WN 452	5h 10m	92%	83%
Delta Details →	IND 16:19 → MSP 17:10DL 2912	3h 10m Minneapolis	MSP 20:20 → SLC 22:15DL 1051	7h 56m	98%	82%
Delta Details →	IND 10:07 → ATL 11:43DL 3125	2h 12m Atlanta	ATL 13:55 → SLC 15:51DL 423	7h 46m	100%	82%
United Details →	IND 06:00 → ORD 06:20UA 3479 · flown by Republic	2h 35m Chicago	ORD 08:55 → SLC 11:39UA 1972	7h 39m	98%	81%
Tight connection: often missed
Delta Details →	IND 16:33 → ATL 18:15DL 3138	1h 10m Atlanta	ATL 19:25 → SLC 21:30DL 660	6h 57m	75%	57%
American Details →	IND 18:41 → PHX 19:23AA 3078	57m Phoenix	PHX 20:20 → SLC 23:03AA 4921 · flown by SkyWest	6h 22m	66%	48%
United Details →	IND 18:33 → ORD 19:00UA 5435 · flown by SkyWest	1h 10m Chicago	ORD 20:10 → SLC 22:48UA 1710	6h 15m	74%	38%

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 17m · leaves 07:00 8%

DFW · 1h 05m · leaves 06:01 8%

SFO · 58m · leaves 06:00 16%

Afternoon and evening

PHL · 59m · leaves 16:49 33%

DFW · 1h 08m · leaves 20:19 39%

PHX · 55m · leaves 21:15 52%

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 4137 IND 06:20 → PHX Delta DL 1447 PHX 09:45 → SLC Connection details →	2h 45m	8h 03m	100%	93%
American AA 1773 IND 06:01 → PHX Frontier F9 3872 PHX 09:14 → SLC Connection details →	2h 30m	7h 52m	97%	89%
American AA 598 IND 07:00 → LAX Delta DL 1194 LAX 11:41 → SLC Connection details →	3h 14m	9h 34m	96%	87%

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