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 4 in 5 on time.

Nonstops


Alaska	PDX	LAS	2h 20m	84%	0.4%	1,557	Flying now
Southwest	PDX	LAS	2h 10m	78%	0.2%	1,150	Flying now
Frontier	PDX	LAS	2h 21m	72%	3.9%	179	Flying now
Spirit	PDX	LAS	2h 14m	85%	0.0%	70	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Southwest Details →	PDX 05:30 → SMF 07:00WN 3211	3h 50m Sacramento	SMF 10:50 → LAS 12:20WN 1285	6h 50m	100%	92%
American Details →	PDX 05:20 → PHX 08:00AA 2658	2h 24m Phoenix	PHX 10:24 → LAS 11:37AA 2037	6h 17m	96%	86%
Southwest Details →	PDX 07:25 → SJC 09:15WN 3209	1h 05m San Jose	SJC 10:20 → LAS 11:50WN 2311	4h 25m	100%	86%
Alaska Details →	PDX 17:30 → SEA 18:33AS 430	1h 42m Seattle	SEA 20:15 → LAS 22:55AS 704	5h 25m	98%	85%
Alaska Details →	PDX 05:00 → SEA 05:53AS 2431 · flown by Horizon	1h 55m Seattle	SEA 07:48 → LAS 10:29AS 612	5h 29m	98%	84%
Delta Details →	PDX 05:30 → SEA 06:41DL 4008 · flown by SkyWest	3h 14m Seattle	SEA 09:55 → LAS 12:28DL 2905	6h 58m	98%	84%
Southwest Details →	PDX 05:10 → OAK 06:55WN 264	2h 05m Oakland	OAK 09:00 → LAS 10:30WN 2374	5h 20m	96%	82%
Southwest Details →	PDX 05:50 → DEN 09:15WN 3195	1h 45m Denver	DEN 11:00 → LAS 11:55WN 1561	6h 05m	98%	82%
Tight connection: often missed
Alaska Details →	PDX 09:19 → SEA 10:21AS 427	1h 10m Seattle	SEA 11:31 → LAS 14:16AS 738	4h 57m	72%	57%
United Details →	PDX 11:16 → SFO 13:07UA 1613	1h 14m San Francisco	SFO 14:21 → LAS 16:11UA 2855	4h 55m	59%	37%
Southwest Details →	PDX 13:05 → SAN 15:30WN 2809	55m San Diego	SAN 16:25 → LAS 17:50WN 4111	4h 45m	40%	6%

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 17m · leaves 10:35 7%

SMF · 55m · leaves 10:00 33%

Afternoon and evening

SLC · 1h 01m · leaves 19:20 9%

LAX · 58m · leaves 17:36 16%

SAN · 55m · leaves 13:05 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.


Alaska AS 3353 PDX 07:00 → RNO Southwest WN 4133 RNO 10:40 → LAS Connection details →	2h 00m	5h 05m	100%	95%
Alaska AS 2161 PDX 07:00 → BOI Southwest WN 702 BOI 12:05 → LAS Connection details →	2h 46m	5h 55m	100%	86%
Delta DL 4062 PDX 15:26 → SEA Alaska AS 704 SEA 20:15 → LAS Connection details →	3h 35m	7h 29m	98%	86%

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