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 5% of the time at 9 am and 30% of the time at 6 pm.

Nonstops (seasonal or thin)


Alaska	MCI	PDX	3h 58m	90%	0.6%	338	Flying now
Southwest	MCI	PDX	3h 35m	61%few flights	0.0%	33	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 2 h behind Kansas City). Layovers up to 4 hours. Pick a connection for the details.


Alaska Details →	MCI 06:02 → SEA 08:05AS 563	2h 09m Seattle	SEA 10:14 → PDX 11:21AS 3090 · flown by SkyWest	7h 19m	98%	93%
United Details →	MCI 09:10 → DEN 10:17UA 280	3h 10m Denver	DEN 13:27 → PDX 15:13UA 2455	8h 03m	99%	88%
Delta Details →	MCI 18:00 → SLC 19:47DL 2903	3h 03m Salt Lake City	SLC 22:50 → PDX 23:44DL 1373	7h 45m	99%	88%
Delta Details →	MCI 07:02 → SLC 08:45DL 2897	2h 30m Salt Lake City	SLC 11:15 → PDX 12:10DL 1209	7h 08m	99%	85%
Southwest Details →	MCI 06:15 → MDW 07:40WN 2569	2h 25m Chicago	MDW 10:05 → PDX 12:25WN 2809	8h 10m	100%	84%
Delta Details →	MCI 06:23 → MSP 07:54DL 1635	3h 06m Minneapolis	MSP 11:00 → PDX 12:40DL 2167	8h 17m	98%	84%
United Details →	MCI 11:33 → DEN 12:38UA 5358 · flown by SkyWest	3h 22m Denver	DEN 16:00 → PDX 17:46UA 1337	8h 13m	100%	84%
United Details →	MCI 06:00 → DEN 06:56UA 355	1h 09m Denver	DEN 08:05 → PDX 09:47UA 1247	5h 47m	97%	83%
Tight connection: often missed
American Details →	MCI 17:08 → CLT 20:40AA 2046	47m Charlotte	CLT 21:27 → PDX 23:55AA 3112	8h 47m	67%	35%
American Details →	MCI 19:53 → DFW 21:41AA 2047	1h 11m Dallas-Fort Worth	DFW 22:52 → PDX 00:52 +1AA 2620	7h 00m	66%	25%
United Details →	MCI 19:59 → SFO 21:50UA 1429	1h 02m San Francisco	SFO 22:52 → PDX 00:50 +1UA 2384	6h 51m	27%	20%

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

PHX · 1h 15m · leaves 05:50 2%

DEN · 1h 09m · leaves 06:00 3%

LAX · 1h 00m · leaves 07:26 5%

Afternoon and evening

MDW · 1h 05m · leaves 14:10 38%

DEN · 1h 10m · leaves 16:15 55%

SFO · 1h 02m · leaves 19:59 73%

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.


Southwest WN 4827 MCI 05:30 → LAX Frontier F9 4499 LAX 09:18 → PDX Connection details →	2h 23m	8h 11m	98%	93%
Southwest WN 3169 MCI 08:30 → DEN Alaska AS 684 DEN 12:02 → PDX Connection details →	2h 44m	7h 16m	100%	88%
Delta DL 2897 MCI 07:02 → SLC Alaska AS 2333 SLC 11:22 → PDX Connection details →	2h 37m	7h 21m	98%	88%

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