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 50-minute layover misses 1 time in 10 at 11 am and 45% of the time at 8 pm.

Nonstops


American	SEA	CLT	5h 04m	88%	1.2%	1,296	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


American Details →	SEA 20:45 → MIA 05:37AA 1471	3h 03m Miami	MIA 08:40 → CLT 10:54 +1AA 3044	11h 09m	98%	96%
Southwest Details →	SEA 23:05 → MDW 05:00WN 2304	2h 50m Chicago	MDW 07:50 → CLT 10:55 +1WN 2749	8h 50m	98%	94%
Delta Details →	SEA 21:45 → ATL 05:36DL 567	2h 02m Atlanta	ATL 07:38 → CLT 08:53 +1DL 3144	8h 04m	98%	89%
United Details →	SEA 05:00 → DEN 08:43UA 2601	1h 07m Denver	DEN 09:50 → CLT 15:12UA 1633	7h 12m	98%	87%
Delta Details →	SEA 22:58 → ATL 06:45DL 409	3h 25m Atlanta	ATL 10:10 → CLT 11:26 +1DL 3190	9h 30m	100%	86%
American Details →	SEA 06:16 → PHX 09:18AA 3792 · flown by Envoy	2h 57m Phoenix	PHX 12:15 → CLT 19:29AA 2923	10h 13m	99%	85%
Delta Details →	SEA 05:30 → SLC 08:30DL 1128	2h 25m Salt Lake City	SLC 10:55 → CLT 16:52DL 2070	8h 24m	98%	84%
American Details →	SEA 23:23 → DFW 05:18AA 2003	3h 16m Dallas-Fort Worth	DFW 08:34 → CLT 12:14 +1AA 1690	9h 51m	98%	84%
Tight connection: often missed
Delta Details →	SEA 11:56 → ATL 19:54DL 554	46m Atlanta	ATL 20:40 → CLT 21:57DL 3139	7h 03m	55%	40%
American Details →	SEA 11:40 → DFW 17:50AA 767	1h 04m Dallas-Fort Worth	DFW 18:54 → CLT 22:38AA 1229	7h 58m	72%	37%
Southwest Details →	SEA 11:45 → MDW 18:00WN 3081	50m Chicago	MDW 18:50 → CLT 21:48WN 4194	7h 03m	36%	16%

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 07m · leaves 05:00 2%

DFW · 53m · leaves 05:05 9%

ORD · 1h 12m · leaves 23:11 12%

Afternoon and evening

ORD · 52m · leaves 10:22 35%

ATL · 46m · leaves 11:56 45%

MDW · 50m · leaves 11:45 64%

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 298 SEA 22:05 → CVG American AA 2492 CVG 09:12 → CLT Connection details →	3h 42m	9h 43m	100%	93%
Alaska AS 280 SEA 22:12 → CMH American AA 5144 CMH 09:16 → CLT Connection details →	3h 36m	9h 46m	100%	93%
Alaska AS 394 SEA 21:33 → MCO Frontier F9 1446 MCO 09:38 → CLT Connection details →	3h 22m	10h 59m	100%	91%

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