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 one-hour layover misses 2% of the time at 9 am and 43% of the time at 10 pm.

Nonstops


Alaska	BUR	SEA	2h 49m	85%	2.4%	1,617	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.


Southwest Details →	BUR 16:35 → SMF 17:58WN 3474	3h 57m Sacramento	SMF 21:55 → SEA 23:50WN 4985	7h 15m	100%	92%
Delta Details →	BUR 16:54 → SLC 19:55DL 3693 · flown by SkyWest	2h 50m Salt Lake City	SLC 22:45 → SEA 23:59DL 2998	7h 05m	100%	91%
Alaska Details →	BUR 07:09 → PDX 09:27AS 562	2h 36m Portland	PDX 12:03 → SEA 13:03AS 3078 · flown by SkyWest	5h 54m	100%	84%
Delta Details →	BUR 07:00 → SLC 10:01DL 2582	1h 34m Salt Lake City	SLC 11:35 → SEA 12:52DL 2995	5h 52m	96%	84%
American Details →	BUR 09:16 → PHX 10:52AA 3992 · flown by Envoy	3h 43m Phoenix	PHX 14:35 → SEA 17:44AA 4035 · flown by Envoy	8h 28m	100%	83%
Southwest Details →	BUR 07:00 → PHX 08:40WN 813	2h 05m Phoenix	PHX 10:45 → SEA 13:50WN 814	6h 50m	100%	81%
United Details →	BUR 09:08 → DEN 12:35UA 1191	1h 25m Denver	DEN 14:00 → SEA 16:00UA 2164	6h 52m	95%	79%
Alaska Details →	BUR 18:10 → PDX 20:25AS 649	1h 05m Portland	PDX 21:30 → SEA 22:27AS 2421 · flown by Horizon	4h 17m	87%	78%
Tight connection: often missed
United Details →	BUR 13:45 → SFO 15:13UA 1453	1h 14m San Francisco	SFO 16:27 → SEA 18:47UA 2279	5h 02m	73%	55%
United Details →	BUR 20:22 → SFO 21:50UA 2854	1h 09m San Francisco	SFO 22:59 → SEA 01:29 +1UA 5579 · flown by SkyWest	5h 07m	57%	40%
United Details →	BUR 16:13 → SFO 17:41UA 357	47m San Francisco	SFO 18:28 → SEA 20:53UA 1577	4h 40m	27%	19%

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

PDX · 1h 08m · leaves 07:09 2%

Afternoon and evening

SMF · 1h 02m · leaves 16:35 24%

OAK · 1h 10m · leaves 15:05 25%

SFO · 47m · leaves 16:13 73%

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 813 BUR 07:00 → PHX Delta DL 2419 PHX 12:05 → SEA Connection details →	3h 25m	8h 18m	100%	93%
Southwest WN 834 BUR 07:25 → SJC Delta DL 3736 SJC 11:29 → SEA Connection details →	2h 49m	6h 34m	98%	90%
Southwest WN 845 BUR 07:30 → SMF Delta DL 3881 SMF 11:34 → SEA Connection details →	2h 39m	6h 18m	100%	90%

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