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

Connect in the morning. The same one-hour layover misses 3% of the time at 6 am and barely half the time at 8 pm.

Nonstops (seasonal or thin)


United	MFR	DEN	2h 44m	83%	0.3%	728	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Denver on time. Total trip = scheduled departure to arrival, layover included (Denver is 1 h ahead of Medford). Layovers up to 4 hours. Pick a connection for the details.


Alaska Details →	MFR 05:15 → PDX 06:14AS 2098 · flown by Horizon	1h 06m Portland	PDX 07:20 → DEN 11:03AS 401	4h 48m	97%	91%
United Details →	MFR 14:11 → SFO 15:35UA 1754	3h 21m San Francisco	SFO 18:56 → DEN 22:44UA 2436	7h 33m	98%	87%
Delta Details →	MFR 05:20 → SLC 08:18DL 3769 · flown by SkyWest	1h 57m Salt Lake City	SLC 10:15 → DEN 11:53DL 1553	5h 33m	97%	81%
Delta Details →	MFR 06:01 → SEA 07:40DL 3781 · flown by SkyWest	50m Seattle	SEA 08:30 → DEN 12:18DL 1358	5h 17m	95%	80%
United Details →	MFR 06:00 → SFO 07:24UA 717	1h 07m San Francisco	SFO 08:31 → DEN 12:22UA 2348	5h 22m	94%	79%
American Details →	MFR 05:15 → PHX 07:42AA 6401 · flown by SkyWest	50m Phoenix	PHX 08:32 → DEN 11:29AA 1757	5h 12m	88%	78%
Delta Details →	MFR 17:25 → SEA 19:04DL 3770 · flown by SkyWest	52m Seattle	SEA 19:56 → DEN 23:46DL 2851	5h 21m	90%	68%
Alaska Details →	MFR 13:27 → SEA 14:55AS 3087 · flown by SkyWest	1h 31m Seattle	SEA 16:26 → DEN 20:10AS 602	5h 43m	92%	68%
Tight connection: often missed
United Details →	MFR 18:35 → SFO 20:07UA 5883 · flown by SkyWest	53m San Francisco	SFO 21:00 → DEN 00:47 +1UA 301	5h 12m	48%	40%

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 · 1h 06m · leaves 05:15 3%

SEA · 50m · leaves 06:01 5%

SFO · 1h 07m · leaves 06:00 6%

Afternoon and evening

PDX · 1h 14m · leaves 15:52 7%

SEA · 52m · leaves 17:25 10%

SFO · 53m · leaves 18:35 52%

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 2098 MFR 05:15 → PDX United UA 2375 PDX 08:50 → DEN Connection details →	2h 36m	6h 09m	99%	92%
Alaska AS 3322 MFR 06:08 → LAX United UA 2061 LAX 10:55 → DEN Connection details →	2h 37m	7h 19m	98%	89%
Delta DL 3769 MFR 05:20 → SLC United UA 2004 SLC 10:39 → DEN Connection details →	2h 21m	6h 04m	97%	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