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

No clear winner: United’s SFO → MFR flights land within a few points of 4 in 5 on time whatever the hour.

Nonstops


United	SFO	MFR	1h 29m	80%	1.1%	1,029	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Alaska Details →	SFO 08:30 → LAX 10:07AS 1329	3h 08m Los Angeles	LAX 13:15 → MFR 15:14AS 2328 · flown by Horizon	6h 44m	98%	91%
Delta Details →	SFO 17:07 → SLC 20:02DL 1088	2h 57m Salt Lake City	SLC 22:59 → MFR 23:54DL 3722 · flown by SkyWest	6h 47m	97%	90%
Delta Details →	SFO 10:35 → SEA 12:53DL 2870	2h 17m Seattle	SEA 15:10 → MFR 16:44DL 3770 · flown by SkyWest	6h 09m	98%	90%
Alaska Details →	SFO 07:20 → PDX 09:02AS 1410	1h 38m Portland	PDX 10:40 → MFR 11:53AS 3300 · flown by SkyWest	4h 33m	97%	89%
Delta Details →	SFO 05:50 → SLC 08:42DL 1331	2h 03m Salt Lake City	SLC 10:45 → MFR 11:43DL 3806 · flown by SkyWest	5h 55m	99%	88%
American Details →	SFO 05:50 → PHX 08:01AA 6404 · flown by SkyWest	2h 10m Phoenix	PHX 10:11 → MFR 12:50AA 6253 · flown by SkyWest	7h 00m	99%	87%
Alaska Details →	SFO 16:30 → LAX 18:06AS 1523	1h 51m Los Angeles	LAX 19:57 → MFR 22:02AS 3321 · flown by SkyWest	5h 32m	94%	83%
Alaska Details →	SFO 12:08 → PDX 13:50AS 235	3h 55m Portland	PDX 17:45 → MFR 18:48AS 2163 · flown by Horizon	6h 40m	98%	83%
Tight connection: often missed
Alaska Details →	SFO 10:15 → LAX 11:44AS 1602	1h 31m Los Angeles	LAX 13:15 → MFR 15:14AS 2328 · flown by Horizon	4h 59m	68%	65%
Alaska Details →	SFO 15:02 → PDX 16:47AS 1302	58m Portland	PDX 17:45 → MFR 18:48AS 2163 · flown by Horizon	3h 46m	73%	62%
Alaska Details →	SFO 12:08 → PDX 13:50AS 235	1h 02m Portland	PDX 14:52 → MFR 15:54AS 2125 · flown by Horizon	3h 46m	64%	54%

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.

Afternoon and evening

DEN · 1h 19m · leaves 14:20 16%

SEA · 1h 16m · leaves 14:20 17%

PDX · 58m · leaves 15:02 27%

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.


United UA 1896 SFO 08:50 → LAX Alaska AS 2328 LAX 13:15 → MFR Connection details →	2h 41m	6h 24m	99%	93%
United UA 543 SFO 16:11 → SLC Delta DL 3722 SLC 22:59 → MFR Connection details →	3h 48m	7h 43m	97%	90%
Southwest WN 4145 SFO 05:30 → PHX American AA 6253 PHX 10:11 → MFR Connection details →	2h 41m	7h 20m	98%	87%

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