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 5% of the time at 7 am and 30% of the time at 8 pm.

Nonstops


Alaska	FAT	SEA	2h 23m	82%	0.8%	1,021	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Seattle on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	FAT 17:13 → SLC 20:00DL 3777 · flown by SkyWest	2h 45m Salt Lake City	SLC 22:45 → SEA 23:59DL 2998	6h 46m	99%	90%
Delta Details →	FAT 06:09 → SLC 08:55DL 4138 · flown by SkyWest	2h 40m Salt Lake City	SLC 11:35 → SEA 12:52DL 2995	6h 43m	98%	87%
United Details →	FAT 05:00 → DEN 08:22UA 1774	3h 00m Denver	DEN 11:22 → SEA 13:22UA 1424	8h 22m	99%	85%
Alaska Details →	FAT 17:51 → PDX 19:50AS 3285 · flown by SkyWest	1h 40m Portland	PDX 21:30 → SEA 22:27AS 2421 · flown by Horizon	4h 36m	92%	83%
American Details →	FAT 12:56 → PHX 14:37AA 1831	3h 18m Phoenix	PHX 17:55 → SEA 21:05AA 4307 · flown by Envoy	8h 09m	99%	83%
United Details →	FAT 13:58 → LAX 15:23UA 5307 · flown by SkyWest	3h 44m Los Angeles	LAX 19:07 → SEA 22:00UA 684	8h 02m	98%	83%
Alaska Details →	FAT 07:30 → PDX 09:27AS 3487 · flown by SkyWest	2h 36m Portland	PDX 12:03 → SEA 13:03AS 3078 · flown by SkyWest	5h 33m	98%	82%
Delta Details →	FAT 12:35 → SLC 15:22DL 3768 · flown by SkyWest	1h 58m Salt Lake City	SLC 17:20 → SEA 18:36DL 871	6h 01m	98%	80%
Tight connection: often missed
United Details →	FAT 18:40 → SFO 19:44UA 5349 · flown by SkyWest	1h 10m San Francisco	SFO 20:54 → SEA 23:19UA 1007	4h 39m	70%	44%
Alaska Details →	FAT 08:46 → SAN 10:12AS 3409 · flown by SkyWest	1h 09m San Diego	SAN 11:21 → SEA 14:25AS 475	5h 39m	63%	37%
Alaska Details →	FAT 16:22 → SAN 17:47AS 3388 · flown by SkyWest	48m San Diego	SAN 18:35 → SEA 21:35AS 1431	5h 13m	47%	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

LAS · 1h 05m · leaves 05:25 2%

SAN · 1h 16m · leaves 06:00 5%

PDX · 1h 08m · leaves 07:30 7%

Afternoon and evening

SFO · 1h 10m · leaves 18:40 30%

SAN · 48m · leaves 16:22 53%

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 1842 FAT 05:25 → LAS Alaska AS 629 LAS 10:28 → SEA Connection details →	3h 53m	7h 49m	100%	89%
United UA 1756 FAT 06:00 → LAX Delta DL 1714 LAX 09:40 → SEA Connection details →	2h 28m	6h 34m	94%	87%
Delta DL 4138 FAT 06:09 → SLC Alaska AS 664 SLC 12:51 → SEA Connection details →	3h 56m	7h 55m	98%	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