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 6% of the time at 11 am and 1 time in 4 at 5 pm.

Nonstops


Delta	SEA	GEG	1h 15m	87%	0.8%	2,907	Flying now
Alaska	SEA	GEG	1h 06m	82%	1.2%	3,332	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Alaska Details →	SEA 10:14 → PDX 11:21AS 3090 · flown by SkyWest	3h 09m Portland	PDX 14:30 → GEG 15:41AS 3262 · flown by SkyWest	5h 27m	100%	98%
Alaska Details →	SEA 06:42 → PDX 07:37AS 2432 · flown by Horizon	2h 53m Portland	PDX 10:30 → GEG 11:45AS 250	5h 03m	100%	85%
Alaska Details →	SEA 15:45 → BOI 18:11AS 2061 · flown by Horizon	3h 12m Boise	BOI 21:23 → GEG 21:33AS 2137 · flown by Horizon	5h 48m	100%	84%
Delta Details →	SEA 11:05 → SLC 14:11DL 1265	3h 19m Salt Lake City	SLC 17:30 → GEG 18:14DL 1024	7h 09m	99%	83%
Alaska Details →	SEA 17:59 → PDX 18:56AS 2302 · flown by Horizon	2h 54m Portland	PDX 21:50 → GEG 22:59AS 1356	5h 00m	98%	83%
Delta Details →	SEA 06:05 → MSP 11:24DL 943	53m Minneapolis	MSP 12:17 → GEG 13:18DL 2437	7h 13m	94%	82%
Alaska Details →	SEA 13:45 → PDX 14:48AS 3204 · flown by SkyWest	2h 42m Portland	PDX 17:30 → GEG 18:44AS 3052 · flown by SkyWest	4h 59m	97%	81%
Alaska Details →	SEA 06:40 → SNA 09:34AS 699	1h 51m Santa Ana	SNA 11:25 → GEG 13:59AS 2020 · flown by Horizon	7h 19m	99%	81%
Tight connection: often missed
Delta Details →	SEA 13:30 → SLC 16:40DL 1120	50m Salt Lake City	SLC 17:30 → GEG 18:14DL 1024	4h 44m	74%	62%
Alaska Details →	SEA 16:45 → SAN 19:36AS 1348	46m San Diego	SAN 20:22 → GEG 23:07AS 566	6h 22m	40%	33%
Alaska Details →	SEA 08:53 → SFO 11:09AS 528	1h 20m San Francisco	SFO 12:29 → GEG 14:36AS 3075 · flown by SkyWest	5h 43m	73%	14%

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

SLC · 1h 07m · leaves 07:15 4%

MSP · 53m · leaves 06:05 6%

SFO · 1h 20m · leaves 08:53 27%

Afternoon and evening

LAX · 1h 01m · leaves 15:59 22%

SLC · 50m · leaves 13:30 26%

SAN · 46m · leaves 16:45 60%

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.


Delta DL 3818 SEA 09:30 → PDX Alaska AS 3262 PDX 14:30 → GEG Connection details →	3h 51m	6h 11m	100%	100%
Southwest WN 3397 SEA 07:50 → DEN United UA 324 DEN 13:46 → GEG Connection details →	2h 21m	7h 21m	98%	85%
Delta DL 4127 SEA 14:54 → BOI Alaska AS 2137 BOI 21:23 → GEG Connection details →	3h 53m	6h 39m	99%	82%

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