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

No clear winner: Alaska’s SEA → RNO flights land within a few points of 83% on time whatever the hour.

Nonstops


Alaska	SEA	RNO	1h 49m	83%	0.8%	1,317	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	SEA 07:15 → LAX 10:05DL 1628	2h 51m Los Angeles	LAX 12:56 → RNO 14:33DL 3902 · flown by SkyWest	7h 18m	99%	90%
Alaska Details →	SEA 10:14 → PDX 11:21AS 3090 · flown by SkyWest	3h 40m Portland	PDX 15:01 → RNO 16:30AS 2206 · flown by Horizon	6h 16m	100%	88%
Delta Details →	SEA 09:30 → SLC 12:38DL 1016	3h 42m Salt Lake City	SLC 16:20 → RNO 16:59DL 3732 · flown by SkyWest	7h 29m	99%	88%
American Details →	SEA 11:07 → PHX 14:10AA 3793 · flown by Envoy	2h 27m Phoenix	PHX 16:37 → RNO 18:31AA 4053 · flown by Envoy	7h 24m	96%	87%
Delta Details →	SEA 05:30 → SLC 08:30DL 1128	3h 10m Salt Lake City	SLC 11:40 → RNO 12:09DL 1595	6h 39m	99%	86%
Delta Details →	SEA 12:35 → LAX 15:26DL 2914	1h 23m Los Angeles	LAX 16:49 → RNO 18:20DL 4126 · flown by SkyWest	5h 45m	95%	85%
Delta Details →	SEA 17:30 → LAX 20:15DL 2861	1h 44m Los Angeles	LAX 21:59 → RNO 23:32DL 3929 · flown by SkyWest	6h 02m	92%	82%
Alaska Details →	SEA 13:45 → PDX 14:48AS 3204 · flown by SkyWest	3h 07m Portland	PDX 17:55 → RNO 19:31AS 1616	5h 46m	99%	82%
Tight connection: often missed
Alaska Details →	SEA 15:55 → PDX 16:55AS 686	1h 00m Portland	PDX 17:55 → RNO 19:31AS 1616	3h 36m	73%	60%
United Details →	SEA 08:45 → SFO 11:03UA 2831	1h 09m San Francisco	SFO 12:12 → RNO 13:28UA 5707 · flown by SkyWest	4h 43m	44%	28%
United Details →	SEA 13:30 → SFO 15:48UA 737	57m San Francisco	SFO 16:45 → RNO 17:59UA 1613	4h 29m	53%	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

SLC · 1h 17m · leaves 07:15 4%

PHX · 54m · leaves 06:16 9%

SFO · 1h 09m · leaves 08:45 56%

Afternoon and evening

LAX · 1h 17m · leaves 17:04 7%

PDX · 1h 00m · leaves 15:55 27%

SFO · 57m · leaves 13:30 47%

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 3802 SEA 10:35 → PDX Alaska AS 2206 PDX 15:01 → RNO Connection details →	3h 19m	5h 55m	98%	87%
Alaska AS 717 SEA 07:26 → LAX Delta DL 3902 LAX 12:56 → RNO Connection details →	2h 36m	7h 07m	98%	87%
Frontier F9 1178 SEA 11:03 → LAX Delta DL 4126 LAX 16:49 → RNO Connection details →	2h 48m	7h 17m	97%	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