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 75-minute layover misses 7% of the time at 8 am and 17% of the time at 6 pm.

Nonstops (seasonal or thin)


Alaska	SEA	IND	4h 10m	78%	1.2%	565	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	SEA 22:58 → ATL 06:45DL 409	2h 14m Atlanta	ATL 08:59 → IND 10:31 +1DL 2952	8h 35m	100%	89%
Delta Details →	SEA 21:45 → ATL 05:36DL 567	1h 54m Atlanta	ATL 07:30 → IND 09:00 +1DL 3125	8h 15m	98%	88%
American Details →	SEA 21:35 → CLT 05:41AA 2793	3h 15m Charlotte	CLT 08:56 → IND 10:35 +1AA 1944	10h 00m	100%	88%
Delta Details →	SEA 23:59 → ATL 07:46DL 652	3h 19m Atlanta	ATL 11:05 → IND 12:40 +1DL 3013	9h 41m	99%	87%
American Details →	SEA 23:56 → ORD 06:02AA 2881	3h 28m Chicago	ORD 09:30 → IND 11:40 +1AA 843	8h 44m	99%	87%
Delta Details →	SEA 05:30 → DTW 12:40DL 812	1h 20m Detroit	DTW 14:00 → IND 15:19DL 5846 · flown by Republic	6h 49m	96%	86%
United Details →	SEA 05:00 → DEN 08:43UA 2601	1h 15m Denver	DEN 09:58 → IND 14:35UA 1522	6h 35m	99%	86%
Delta Details →	SEA 09:05 → MSP 14:25DL 536	1h 20m Minneapolis	MSP 15:45 → IND 18:22DL 1456	6h 17m	96%	85%
Tight connection: often missed
Delta Details →	SEA 07:20 → ATL 15:13DL 562	46m Atlanta	ATL 15:59 → IND 17:35DL 3126	7h 15m	69%	54%
Delta Details →	SEA 11:56 → ATL 19:54DL 554	57m Atlanta	ATL 20:51 → IND 22:27DL 1482	7h 31m	75%	53%
United Details →	SEA 10:52 → ORD 17:05UA 2835	50m Chicago	ORD 17:55 → IND 20:13UA 3455 · flown by Republic	6h 21m	56%	39%

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

DEN · 1h 15m · leaves 05:00 1%

ATL · 1h 13m · leaves 23:59 7%

IAD · 1h 02m · leaves 23:20 9%

Afternoon and evening

ORD · 50m · leaves 10:52 44%

DEN · 1h 10m · leaves 14:35 62%

AUS · 55m · leaves 13:30 70%

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.


Alaska AS 394 SEA 21:33 → MCO Southwest WN 4655 MCO 09:50 → IND Connection details →	3h 34m	11h 39m	100%	94%
Alaska AS 328 SEA 00:17 → ORD American AA 843 ORD 09:30 → IND Connection details →	3h 10m	8h 23m	99%	89%
Alaska AS 464 SEA 23:31 → ATL Delta DL 3013 ATL 11:05 → IND Connection details →	3h 41m	10h 09m	100%	88%

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