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 3% of the time at 8 am and 27% of the time at 9 pm.

Nonstops


United	SFO	GEG	2h 17m	83%	0.7%	701	Flying now
Alaska	SFO	GEG	2h 10m	57%	1.5%	342	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.


Delta Details →	SFO 10:35 → SEA 12:53DL 2870	2h 47m Seattle	SEA 15:40 → GEG 16:57DL 3857 · flown by SkyWest	6h 22m	98%	91%
Alaska Details →	SFO 06:03 → SEA 08:13AS 620	1h 42m Seattle	SEA 09:55 → GEG 11:00AS 2200 · flown by Horizon	4h 57m	98%	89%
Delta Details →	SFO 09:20 → LAX 10:53DL 1421	2h 13m Los Angeles	LAX 13:06 → GEG 15:48DL 3794 · flown by SkyWest	6h 28m	98%	88%
Delta Details →	SFO 13:38 → SEA 15:59DL 1412	3h 57m Seattle	SEA 19:56 → GEG 21:12DL 3677 · flown by SkyWest	7h 34m	98%	86%
Delta Details →	SFO 05:55 → SEA 08:11DL 2721	1h 09m Seattle	SEA 09:20 → GEG 10:34DL 3824 · flown by SkyWest	4h 39m	97%	84%
Alaska Details →	SFO 06:00 → LAX 07:32AS 1620	54m Los Angeles	LAX 08:26 → GEG 11:11AS 3351 · flown by SkyWest	5h 11m	87%	83%
Alaska Details →	SFO 07:20 → PDX 09:02AS 1410	1h 28m Portland	PDX 10:30 → GEG 11:45AS 250	4h 25m	97%	83%
United Details →	SFO 08:31 → DEN 12:22UA 2348	1h 24m Denver	DEN 13:46 → GEG 15:12UA 324	6h 40m	95%	83%
Tight connection: often missed
Delta Details →	SFO 10:35 → SEA 12:53DL 2870	1h 26m Seattle	SEA 14:19 → GEG 15:40DL 4145 · flown by SkyWest	5h 05m	66%	58%
Delta Details →	SFO 19:24 → SLC 22:14DL 2652	1h 01m Salt Lake City	SLC 23:15 → GEG 23:55DL 1466	4h 35m	70%	58%
Delta Details →	SFO 15:26 → MSP 21:04DL 2159	55m Minneapolis	MSP 21:59 → GEG 23:06DL 2418	7h 41m	73%	55%

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

SEA · 1h 09m · leaves 05:55 3%

LAX · 54m · leaves 06:00 13%

PHX · 1h 00m · leaves 08:15 16%

Afternoon and evening

LAX · 1h 15m · leaves 18:43 20%

MSP · 55m · leaves 15:26 27%

SLC · 1h 01m · leaves 19:24 30%

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.


United UA 1301 SFO 10:15 → PDX Alaska AS 3262 PDX 14:30 → GEG Connection details →	2h 22m	5h 26m	93%	93%
United UA 1896 SFO 08:50 → LAX Delta DL 3794 LAX 13:06 → GEG Connection details →	2h 32m	6h 58m	98%	92%
Alaska AS 790 SFO 14:20 → SEA Delta DL 3677 SEA 19:56 → GEG Connection details →	3h 25m	6h 52m	100%	89%

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