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 90-minute layover misses 3% of the time at 8 am and 28% of the time at 6 pm.

Nonstops (seasonal or thin)


Alaska	DCA	PDX	5h 48m	73%	0.6%	363	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 3 h behind Washington). Layovers up to 4 hours. Pick a connection for the details.


Alaska Details →	DCA 08:00 → SEA 10:58AS 1	2h 47m Seattle	SEA 13:45 → PDX 14:48AS 3204 · flown by SkyWest	9h 48m	99%	86%
Delta Details →	DCA 17:50 → SLC 20:37DL 820	2h 13m Salt Lake City	SLC 22:50 → PDX 23:44DL 1373	8h 55m	97%	85%
Alaska Details →	DCA 09:59 → LAX 12:27AS 5	2h 00m Los Angeles	LAX 14:27 → PDX 16:47AS 1315	9h 48m	94%	84%
Delta Details →	DCA 06:00 → MSP 07:39DL 1193	3h 21m Minneapolis	MSP 11:00 → PDX 12:40DL 2167	9h 40m	98%	84%
United Details →	DCA 06:00 → IAH 08:13UA 1450	1h 17m Houston	IAH 09:30 → PDX 11:56UA 740	8h 56m	97%	83%
Alaska Details →	DCA 08:59 → SAN 11:39AS 15	2h 24m San Diego	SAN 14:03 → PDX 16:36AS 1402	10h 37m	98%	82%
Delta Details →	DCA 06:00 → DTW 07:30DL 2869	1h 24m Detroit	DTW 08:54 → PDX 10:41DL 2171	7h 41m	95%	82%
Delta Details →	DCA 06:00 → ATL 07:48DL 410	3h 12m Atlanta	ATL 11:00 → PDX 13:00DL 2206	10h 00m	99%	81%
Tight connection: often missed
Delta Details →	DCA 15:00 → MSP 16:48DL 2863	1h 46m Minneapolis	MSP 18:34 → PDX 20:17DL 2151	8h 17m	73%	55%
Delta Details →	DCA 18:59 → MSP 20:49DL 2963	49m Minneapolis	MSP 21:38 → PDX 23:18DL 2391	7h 19m	67%	51%
American Details →	DCA 17:11 → DFW 19:41AA 1414	1h 08m Dallas-Fort Worth	DFW 20:49 → PDX 22:51AA 2283	8h 40m	65%	35%

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

IAH · 1h 17m · leaves 06:00 3%

ORD · 1h 14m · leaves 06:30 4%

DFW · 1h 14m · leaves 06:59 5%

Afternoon and evening

DFW · 1h 08m · leaves 17:11 35%

IAH · 50m · leaves 16:59 42%

DTW · 49m · leaves 17:29 50%

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.


American AA 1966 DCA 08:40 → LAX Alaska AS 1315 LAX 14:27 → PDX Connection details →	3h 08m	11h 07m	99%	89%
Frontier F9 685 DCA 07:00 → DEN Alaska AS 684 DEN 12:02 → PDX Connection details →	2h 55m	9h 46m	99%	86%
Alaska AS 1 DCA 08:00 → SEA Delta DL 4062 SEA 13:35 → PDX Connection details →	2h 37m	9h 46m	97%	82%

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