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

The nonstop is quickest: Alaska CLE → SEA (5h 11m), on time 63% of the time. United via Dulles (8h 51m) is more reliable, 90%, but takes 3h 40m longer.

Nonstops (seasonal or thin)


Alaska	CLE	SEA	5h 11m	64%	1.8%	456	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 3 h behind Cleveland). Layovers up to 4 hours. Pick a connection for the details.


United Details →	CLE 06:00 → IAD 07:15UA 1252	1h 45m Dulles	IAD 09:00 → SEA 11:51UA 2101	8h 51m	99%	90%
United Details →	CLE 07:15 → LAX 09:12UA 776	2h 31m Los Angeles	LAX 11:43 → SEA 14:36UA 325	10h 21m	97%	86%
Delta Details →	CLE 05:35 → ATL 07:22DL 2734	3h 48m Atlanta	ATL 11:10 → SEA 13:38DL 648	11h 03m	98%	84%
American Details →	CLE 07:36 → PHX 08:55AA 3110	2h 37m Phoenix	PHX 11:32 → SEA 14:49AA 3440 · flown by Envoy	10h 10m	97%	83%
Delta Details →	CLE 07:28 → SLC 09:30DL 2207	2h 05m Salt Lake City	SLC 11:35 → SEA 12:52DL 2995	8h 24m	95%	83%
United Details →	CLE 09:00 → ORD 09:34UA 1355	3h 56m Chicago	ORD 13:30 → SEA 16:09UA 1660	10h 09m	100%	83%
United Details →	CLE 08:55 → DEN 10:10UA 690	3h 50m Denver	DEN 14:00 → SEA 16:00UA 2164	10h 05m	100%	83%
Delta Details →	CLE 06:00 → MSP 07:03DL 1357	2h 02m Minneapolis	MSP 09:05 → SEA 10:59DL 868	7h 59m	96%	83%
Tight connection: often missed
American Details →	CLE 11:51 → DFW 13:42AA 1680	51m Dallas-Fort Worth	DFW 14:33 → SEA 16:47AA 727	7h 56m	67%	37%
American Details →	CLE 17:12 → PHL 18:47AA 5129 · flown by PSA	48m Philadelphia	PHL 19:35 → SEA 22:56AA 3259	8h 44m	55%	35%
American Details →	CLE 19:52 → DFW 21:48AA 1682	53m Dallas-Fort Worth	DFW 22:41 → SEA 00:57 +1AA 1487	8h 05m	45%	19%

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 05m · leaves 05:30 2%

ATL · 1h 15m · leaves 08:05 5%

IAD · 1h 17m · leaves 10:37 5%

Afternoon and evening

SFO · 59m · leaves 17:40 44%

PHL · 48m · leaves 17:12 45%

DFW · 53m · leaves 19:52 55%

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 679 CLE 15:42 → LAX Alaska AS 495 LAX 21:12 → SEA Connection details →	3h 34m	11h 17m	99%	91%
American AA 3110 CLE 07:36 → PHX Delta DL 2419 PHX 12:05 → SEA Connection details →	3h 10m	10h 42m	97%	90%
United UA 1252 CLE 06:00 → IAD Alaska AS 361 IAD 09:30 → SEA Connection details →	2h 15m	9h 16m	99%	86%

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