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 9 am and 27% of the time at 7 pm.

Nonstops


United	CLE	DEN	3h 16m	88%	0.1%	941	Flying now
Southwest	CLE	DEN	3h 20m	78%	0.5%	604	Flying now
Frontier	CLE	DEN	3h 26m	75%	2.0%	294	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 2 h behind Cleveland). Layovers up to 4 hours. Pick a connection for the details.


United Details →	CLE 07:00 → ORD 07:36UA 490	3h 18m Chicago	ORD 10:54 → DEN 12:45UA 581	7h 45m	99%	95%
United Details →	CLE 06:00 → IAD 07:15UA 1252	2h 58m Dulles	IAD 10:13 → DEN 12:05UA 1865	8h 05m	100%	93%
United Details →	CLE 08:00 → MCO 10:27UA 2636	2h 23m Orlando	MCO 12:50 → DEN 14:51UA 1520	8h 51m	98%	91%
United Details →	CLE 15:42 → LAX 17:38UA 679	2h 07m Los Angeles	LAX 19:45 → DEN 23:15UA 2829	9h 33m	99%	91%
United Details →	CLE 07:15 → LAX 09:12UA 776	1h 43m Los Angeles	LAX 10:55 → DEN 14:27UA 2061	9h 12m	97%	88%
Delta Details →	CLE 07:05 → ATL 08:55DL 2838	3h 55m Atlanta	ATL 12:50 → DEN 14:04DL 957	8h 59m	100%	87%
American Details →	CLE 05:01 → CLT 06:42AA 2632	57m Charlotte	CLT 07:39 → DEN 09:10AA 1754	6h 09m	93%	86%
United Details →	CLE 18:41 → IAH 20:55UA 1645	1h 15m Houston	IAH 22:10 → DEN 23:57UA 1066	7h 16m	96%	86%
Tight connection: often missed
United Details →	CLE 18:05 → ORD 18:44UA 1673	1h 16m Chicago	ORD 20:00 → DEN 22:01UA 767	5h 56m	73%	50%
American Details →	CLE 15:03 → PHL 16:43AA 5861 · flown by Piedmont	47m Philadelphia	PHL 17:30 → DEN 19:45AA 3158	6h 42m	55%	33%
American Details →	CLE 15:54 → CLT 17:40AA 1681	52m Charlotte	CLT 18:32 → DEN 20:17AA 1736	6h 23m	67%	32%

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

IAD · 1h 00m · leaves 06:00 3%

EWR · 1h 13m · leaves 07:15 4%

PHL · 51m · leaves 07:07 5%

Afternoon and evening

PHL · 47m · leaves 15:03 45%

DFW · 57m · leaves 19:52 49%

BWI · 55m · leaves 17:45 60%

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 4568 CLE 06:40 → BNA United UA 502 BNA 10:26 → DEN Connection details →	3h 16m	7h 43m	100%	92%
Delta DL 2207 CLE 07:28 → SLC United UA 4720 SLC 13:05 → DEN Connection details →	3h 35m	9h 23m	97%	88%
Delta DL 2734 CLE 05:35 → ATL United UA 1327 ATL 11:10 → DEN Connection details →	3h 48m	8h 53m	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