Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

No clear winner: airlines and hours on this route all land within a few points of 84% on time.

Nonstops


Southwest	GEG	PHX	2h 35m	86%	0.5%	616	Flying now
American	GEG	PHX	2h 40m	84%	0.2%	597	Flying now
Frontier	GEG	PHX	2h 47m	66%	2.2%	45	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Alaska Details →	GEG 08:53 → BOI 11:02AS 2031 · flown by Horizon	3h 53m Boise	BOI 14:55 → PHX 16:14AS 3095 · flown by SkyWest	7h 21m	100%	96%
Delta Details →	GEG 16:20 → LAX 19:14DL 3799 · flown by SkyWest	3h 21m Los Angeles	LAX 22:35 → PHX 00:10 +1DL 3827 · flown by SkyWest	7h 50m	100%	89%
Southwest Details →	GEG 05:00 → SMF 06:50WN 367	55m Sacramento	SMF 07:45 → PHX 09:35WN 106	4h 35m	94%	87%
Delta Details →	GEG 05:30 → SEA 06:40DL 2218	1h 30m Seattle	SEA 08:10 → PHX 11:08DL 2419	5h 38m	96%	87%
United Details →	GEG 05:00 → DEN 08:20UA 1234	3h 05m Denver	DEN 11:25 → PHX 12:25UA 1686	7h 25m	99%	86%
Delta Details →	GEG 09:50 → SLC 12:41DL 4444 · flown by SkyWest	2h 39m Salt Lake City	SLC 15:20 → PHX 16:04DL 1738	6h 16m	100%	85%
Delta Details →	GEG 17:10 → SLC 19:59DL 1503	2h 46m Salt Lake City	SLC 22:45 → PHX 23:31DL 1496	6h 21m	98%	84%
Delta Details →	GEG 05:20 → SLC 08:00DL 1440	3h 30m Salt Lake City	SLC 11:30 → PHX 12:12DL 1431	6h 54m	98%	83%
Tight connection: often missed
Delta Details →	GEG 09:20 → SEA 10:55DL 3830 · flown by SkyWest	50m Seattle	SEA 11:45 → PHX 14:53DL 2449	5h 33m	72%	55%
American Details →	GEG 14:01 → ORD 20:02AA 814	52m Chicago	ORD 20:54 → PHX 22:36AA 332	8h 35m	59%	29%
Alaska Details →	GEG 15:16 → PDX 16:32AS 3202 · flown by SkyWest	1h 19m Portland	PDX 17:51 → PHX 20:37AS 746	5h 21m	34%	26%

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 · 50m · leaves 05:00 6%

SEA · 50m · leaves 09:20 28%

Afternoon and evening

SLC · 51m · leaves 19:08 20%

ORD · 52m · leaves 14:01 41%

PDX · 1h 19m · leaves 15:16 66%

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 3696 GEG 06:20 → LAX United UA 5450 LAX 13:05 → PHX Connection details →	3h 49m	8h 22m	99%	96%
Alaska AS 710 GEG 05:00 → PDX Southwest WN 3207 PDX 09:15 → PHX Connection details →	3h 05m	6h 50m	99%	96%
Alaska AS 2065 GEG 05:07 → SEA Delta DL 2419 SEA 08:10 → PHX Connection details →	1h 55m	6h 01m	100%	92%

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