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 9 in 10 on time.

Nonstops


Alaska	SLC	PDX	2h 06m	90%	0.5%	848	Flying now
Delta	SLC	PDX	1h 59m	89%	1.4%	1,699	Flying now
Frontier	SLC	PDX	2h 02m	66%few flights	0.0%	35	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Portland on time. Total trip = scheduled departure to arrival, layover included (Portland is 1 h behind Salt Lake City). Layovers up to 4 hours. Pick a connection for the details.


Alaska Details →	SLC 06:23 → SEA 07:35AS 1444	2h 39m Seattle	SEA 10:14 → PDX 11:21AS 3090 · flown by SkyWest	5h 58m	100%	96%
United Details →	SLC 08:30 → DEN 10:27UA 5642 · flown by SkyWest	3h 00m Denver	DEN 13:27 → PDX 15:13UA 2455	7h 43m	98%	88%
Delta Details →	SLC 09:40 → LAX 10:42DL 1095	3h 37m Los Angeles	LAX 14:19 → PDX 16:42DL 2551	8h 02m	100%	86%
Southwest Details →	SLC 05:45 → SMF 06:25WN 4981	3h 47m Sacramento	SMF 10:12 → PDX 11:42WN 949	6h 57m	98%	86%
Alaska Details →	SLC 07:40 → SAN 08:50AS 3018 · flown by SkyWest	2h 14m San Diego	SAN 11:04 → PDX 13:43AS 576	7h 03m	100%	86%
United Details →	SLC 06:05 → SFO 07:19UA 4763 · flown by SkyWest	1h 03m San Francisco	SFO 08:22 → PDX 10:20UA 2265	5h 15m	93%	85%
Alaska Details →	SLC 09:10 → SEA 10:35AS 3381 · flown by SkyWest	3h 10m Seattle	SEA 13:45 → PDX 14:48AS 3204 · flown by SkyWest	6h 38m	97%	85%
United Details →	SLC 05:15 → DEN 06:54UA 5683 · flown by SkyWest	1h 11m Denver	DEN 08:05 → PDX 09:47UA 1247	5h 32m	96%	85%
Tight connection: often missed
United Details →	SLC 20:08 → SFO 21:10UA 2097	1h 42m San Francisco	SFO 22:52 → PDX 00:50 +1UA 2384	5h 42m	45%	33%
American Details →	SLC 18:50 → PHX 19:37AA 4928 · flown by SkyWest	48m Phoenix	PHX 20:25 → PDX 23:08AA 561	5h 18m	47%	31%
Southwest Details →	SLC 12:55 → SAN 13:50WN 3754	1h 10m San Diego	SAN 15:00 → PDX 17:25WN 4908	5h 30m	64%	23%

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

DEN · 1h 11m · leaves 05:15 4%

LAX · 1h 10m · leaves 07:49 6%

SFO · 1h 03m · leaves 06:05 7%

Afternoon and evening

SMF · 55m · leaves 20:15 52%

DEN · 1h 10m · leaves 16:45 53%

PHX · 48m · leaves 18:50 53%

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 1367 SLC 08:10 → SMF Alaska AS 621 SMF 11:46 → PDX Connection details →	2h 51m	6h 08m	99%	96%
Delta DL 3719 SLC 07:45 → RNO Alaska AS 3121 RNO 12:07 → PDX Connection details →	3h 42m	7h 01m	100%	94%
Delta DL 1302 SLC 08:00 → ONT Alaska AS 1699 ONT 10:54 → PDX Connection details →	2h 07m	6h 09m	100%	93%

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