Connect in the morning. The same 70-minute layover misses 3% of the time at 12 pm and 1 time in 5 at 4 pm.
Nonstops (seasonal or thin)
Nonstop details →| Alaska | IND | SEA | 4h 50m | 76% | 1.4% | 564 | Flying now |
Best connections, any airlines
Ranked by chance you reach Seattle on time. Total trip = scheduled departure to arrival, layover included (Seattle is 3 h behind Indianapolis). Layovers up to 4 hours. Pick a connection for the details.
| Southwest + Deltatwo ticketsDetails → | IND 05:55 → AUS 07:25WN 2108 | 3h 54m Austin | AUS 11:19 → SEA 13:54DL 1684 | 10h 59m | 100% | 94% |
| UnitedDetails → | IND 05:35 → IAD 07:19UA 6210 · flown by Mesa | 1h 41m Dulles | IAD 09:00 → SEA 11:51UA 2101 | 9h 16m | 98% | 90% |
| Southwest + Deltatwo ticketsDetails → | IND 06:20 → PHX 07:00WN 4137 | 2h 20m Phoenix | PHX 09:20 → SEA 12:35DL 2374 | 9h 15m | 100% | 90% |
| American + Alaskatwo ticketsDetails → | IND 16:21 → LAX 17:45AA 3201 | 3h 27m Los Angeles | LAX 21:12 → SEA 23:59AS 495 | 10h 38m | 97% | 89% |
| Delta + Alaskatwo ticketsDetails → | IND 07:40 → SLC 09:15DL 2137 | 3h 36m Salt Lake City | SLC 12:51 → SEA 14:04AS 664 | 9h 24m | 100% | 87% |
| Southwest + Deltatwo ticketsDetails → | IND 07:15 → LAS 08:10WN 2125 | 2h 49m Las Vegas | LAS 10:59 → SEA 13:51DL 2922 | 9h 36m | 98% | 87% |
| Delta + Alaskatwo ticketsDetails → | IND 11:34 → AUS 13:13DL 4101 · flown by SkyWest | 3h 04m Austin | AUS 16:17 → SEA 18:47AS 503 | 10h 13m | 100% | 86% |
| American + Unitedtwo ticketsDetails → | IND 07:00 → LAX 08:27AA 598 | 3h 16m Los Angeles | LAX 11:43 → SEA 14:36UA 325 | 10h 36m | 97% | 86% |
| Tight connection: often missed | ||||||
| DeltaDetails → | IND 10:30 → DTW 11:45DL 4875 · flown by Endeavor | 46m Detroit | DTW 12:31 → SEA 14:30DL 728 | 7h 00m | 67% | 51% |
| AmericanDetails → | IND 17:23 → DFW 18:57AA 1956 | 1h 16m Dallas-Fort Worth | DFW 20:13 → SEA 22:26AA 2003 | 8h 03m | 71% | 35% |
| AmericanDetails → | IND 20:42 → ORD 21:10AA 1951 | 1h 05m Chicago | ORD 22:15 → SEA 00:52 +1AA 1459 | 7h 10m | 47% | 20% |
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.
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
The table above includes two-ticket connections (marked “two tickets”), held to the 90-minute minimum. One ticket only →
Regional partners count as the airline that sells them: SkyWest flying Delta Connection is one Delta ticket.
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