Sun, Oct 4 has passed, so this is the 12-month record.

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 70-minute layover misses 6% of the time at 8 am and 27% of the time at 6 pm.

Nonstops (seasonal or thin)


Alaska	SEA	FLL	6h 04m	81%	0.2%	462	Flying now
Delta	SEA	FLL	5h 55m	75%	1.4%	364	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	SEA 23:59 → MSP 05:17DL 953	3h 38m Minneapolis	MSP 08:55 → FLL 13:30 +1DL 673	10h 31m	100%	92%
Southwest Details →	SEA 23:05 → MDW 05:00WN 2304	2h 50m Chicago	MDW 07:50 → FLL 11:55 +1WN 4409	9h 50m	98%	88%
United Details →	SEA 23:11 → ORD 05:18UA 747	1h 42m Chicago	ORD 07:00 → FLL 11:13 +1UA 1421	9h 02m	93%	85%
Delta Details →	SEA 21:45 → ATL 05:36DL 567	2h 29m Atlanta	ATL 08:05 → FLL 10:00 +1DL 1094	9h 15m	98%	84%
United Details →	SEA 23:49 → IAH 06:10UA 2379	1h 25m Houston	IAH 07:35 → FLL 11:22 +1UA 2261	8h 33m	90%	83%
Delta Details →	SEA 22:58 → ATL 06:45DL 409	2h 20m Atlanta	ATL 09:05 → FLL 11:03 +1DL 1271	9h 04m	100%	83%
United Details →	SEA 05:00 → IAH 11:21UA 2748	2h 59m Houston	IAH 14:20 → FLL 18:07UA 462	10h 07m	98%	83%
United Details →	SEA 07:05 → IAH 13:31UA 2135	3h 04m Houston	IAH 16:35 → FLL 20:22UA 277	10h 17m	99%	82%
Tight connection: often missed
Delta Details →	SEA 08:40 → ATL 16:33DL 797	1h 12m Atlanta	ATL 17:45 → FLL 19:44DL 1670	8h 04m	75%	45%
United Details →	SEA 10:52 → ORD 17:05UA 2835	54m Chicago	ORD 17:59 → FLL 22:15UA 2294	8h 23m	61%	40%
American Details →	SEA 11:40 → DFW 17:50AA 767	1h 05m Dallas-Fort Worth	DFW 18:55 → FLL 22:52AA 2946	8h 12m	73%	34%

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 04m · leaves 05:00 3%

ATL · 1h 19m · leaves 23:59 6%

ORD · 57m · leaves 23:56 7%

Afternoon and evening

ATL · 1h 12m · leaves 08:40 25%

DFW · 1h 05m · leaves 11:40 27%

ORD · 54m · leaves 10:52 39%

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 269 SEA 22:13 → CLE Frontier F9 1046 CLE 07:45 → FLL Connection details →	2h 02m	9h 23m	95%	86%
Delta DL 1628 SEA 07:15 → LAX JetBlue B6 1200 LAX 13:55 → FLL Connection details →	3h 50m	12h 05m	100%	86%
Alaska AS 781 SEA 21:36 → BWI Southwest WN 945 BWI 08:25 → FLL Connection details →	2h 44m	10h 29m	100%	81%

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