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 8% of the time at 10 am and barely half the time at 5 pm.

Nonstops


Delta	DFW	SEA	4h 23m	80%	1.8%	715	Flying now
Alaska	DFW	SEA	4h 25m	76%	1.2%	1,756	Flying now
American	DFW	SEA	4h 18m	66%	2.6%	2,737	Flying now
Frontier	DFW	SEA	4h 23m	65%few flights	0.0%	20	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Seattle on time. Total trip = scheduled departure to arrival, layover included (Seattle is 2 h behind Dallas-Fort Worth). Layovers up to 4 hours. Pick a connection for the details.


United Details →	DFW 05:10 → IAH 06:22UA 2260	1h 38m Houston	IAH 08:00 → SEA 10:47UA 2654	7h 37m	99%	95%
United Details →	DFW 05:45 → DEN 06:53UA 773	1h 08m Denver	DEN 08:01 → SEA 10:00UA 2271	6h 15m	97%	86%
American Details →	DFW 13:40 → PHX 14:08AA 2113	3h 47m Phoenix	PHX 17:55 → SEA 21:05AA 4307 · flown by Envoy	9h 25m	100%	84%
Delta Details →	DFW 07:26 → LAX 08:45DL 439	3h 14m Los Angeles	LAX 11:59 → SEA 14:54DL 1045	9h 28m	98%	84%
Alaska Details →	DFW 17:45 → PDX 19:49AS 646	1h 41m Portland	PDX 21:30 → SEA 22:27AS 2421 · flown by Horizon	6h 42m	94%	84%
United Details →	DFW 08:45 → DEN 10:06UA 644	3h 54m Denver	DEN 14:00 → SEA 16:00UA 2164	9h 15m	100%	84%
Delta Details →	DFW 07:45 → SLC 09:34DL 1291	2h 01m Salt Lake City	SLC 11:35 → SEA 12:52DL 2995	7h 07m	96%	83%
United Details →	DFW 07:08 → ORD 09:50UA 1695	3h 40m Chicago	ORD 13:30 → SEA 16:09UA 1660	11h 01m	99%	83%
Tight connection: often missed
American Details →	DFW 16:37 → PHX 17:09AA 1155	46m Phoenix	PHX 17:55 → SEA 21:05AA 4307 · flown by Envoy	6h 28m	49%	41%
United Details →	DFW 16:50 → DEN 18:20UA 1303	50m Denver	DEN 19:10 → SEA 21:10UA 360	6h 20m	54%	36%
American Details →	DFW 18:38 → ORD 21:22AA 1424	53m Chicago	ORD 22:15 → SEA 00:52 +1AA 1459	8h 14m	34%	15%

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

DEN · 1h 08m · leaves 05:45 3%

ATL · 1h 10m · leaves 05:30 4%

LAX · 55m · leaves 07:26 10%

Afternoon and evening

PHX · 46m · leaves 16:37 51%

MIA · 55m · leaves 15:39 59%

ORD · 53m · leaves 18:38 66%

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 3401 DFW 07:00 → AUS Delta DL 1684 AUS 11:19 → SEA Connection details →	3h 15m	8h 54m	100%	92%
American AA 1818 DFW 06:10 → PHX Delta DL 2374 PHX 09:20 → SEA Connection details →	2h 31m	8h 25m	100%	90%
American AA 2238 DFW 08:20 → ONT Delta DL 4070 ONT 11:59 → SEA Connection details →	2h 30m	8h 40m	97%	89%

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