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 one-hour layover misses 3% of the time at 8 am and 1 time in 5 at 5 pm.

Nonstops (seasonal or thin)


United	GEG	ORD	3h 46m	70%	2.2%	363	Flying now
American	GEG	ORD	3h 50m	61%	0.9%	351	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Chicago on time. Total trip = scheduled departure to arrival, layover included (Chicago is 2 h ahead of Spokane). Layovers up to 4 hours. Pick a connection for the details.


Alaska Details →	GEG 19:45 → SEA 20:59AS 371	3h 18m Seattle	SEA 00:17 → ORD 06:20 +1AS 328	8h 35m	100%	82%
United Details →	GEG 05:00 → DEN 08:20UA 1234	1h 15m Denver	DEN 09:35 → ORD 13:15UA 2329	6h 15m	97%	81%
Alaska Details →	GEG 19:41 → PDX 20:50AS 2407 · flown by Horizon	2h 09m Portland	PDX 22:59 → ORD 05:00 +1AS 376	7h 19m	96%	80%
United Details →	GEG 19:07 → SFO 21:29UA 6042 · flown by SkyWest	3h 21m San Francisco	SFO 00:50 → ORD 07:16 +1UA 1850	10h 09m	93%	79%
Delta Details →	GEG 22:48 → ATL 06:05DL 1843	2h 57m Atlanta	ATL 09:02 → ORD 10:13 +1DL 1147	9h 25m	100%	78%
Alaska Details →	GEG 13:26 → SEA 14:40AS 293	3h 08m Seattle	SEA 17:48 → ORD 23:59AS 538	8h 33m	96%	77%
Alaska Details →	GEG 05:07 → SEA 06:15AS 2065 · flown by Horizon	2h 19m Seattle	SEA 08:34 → ORD 14:46AS 265	7h 39m	100%	76%
Delta Details →	GEG 13:00 → SEA 14:27DL 3754 · flown by SkyWest	3h 13m Seattle	SEA 17:40 → ORD 23:39DL 2108	8h 39m	99%	74%
Tight connection: often missed
American Details →	GEG 12:49 → DFW 18:34AA 1885	1h 11m Dallas-Fort Worth	DFW 19:45 → ORD 22:32AA 3531 · flown by Envoy	7h 43m	73%	43%
United Details →	GEG 19:07 → SFO 21:29UA 6042 · flown by SkyWest	1h 09m San Francisco	SFO 22:38 → ORD 05:01 +1UA 2278	7h 54m	10%	8%

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 10m · leaves 06:13 2%

DEN · 1h 15m · leaves 05:00 3%

PDX · 50m · leaves 05:00 6%

Afternoon and evening

DEN · 1h 03m · leaves 13:41 19%

DFW · 1h 11m · leaves 12:49 27%

SFO · 1h 09m · leaves 19:07 90%

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 1951 GEG 17:10 → LAS United UA 2102 LAS 23:30 → ORD Connection details →	4h 00m	10h 01m	98%	91%
Southwest WN 1890 GEG 17:30 → SMF American AA 3060 SMF 23:10 → ORD Connection details →	3h 45m	10h 03m	96%	89%
Delta DL 3799 GEG 16:20 → LAX United UA 353 LAX 22:35 → ORD Connection details →	3h 21m	10h 31m	99%	88%

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