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 1 time in 10 at 11 am and barely half the time at 10 pm.

Nonstops


United	ORD	IAD	2h 01m	77%	0.8%	2,082	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Dulles on time. Total trip = scheduled departure to arrival, layover included (Dulles is 1 h ahead of Chicago). Layovers up to 4 hours. Pick a connection for the details.


United Details →	ORD 05:00 → DEN 06:42UA 2666	1h 18m Denver	DEN 08:00 → IAD 13:26UA 1101	7h 26m	99%	92%
United Details →	ORD 07:43 → SYR 10:48UA 4541 · flown by GoJet	3h 52m Syracuse	SYR 14:40 → IAD 16:06UA 4505 · flown by GoJet	7h 23m	100%	88%
United Details →	ORD 07:00 → SAV 10:23UA 2622	1h 42m Savannah	SAV 12:05 → IAD 13:45UA 2057	5h 45m	96%	88%
United Details →	ORD 07:43 → RIC 11:02UA 4427 · flown by GoJet	3h 58m Richmond	RIC 15:00 → IAD 16:05UA 4549 · flown by GoJet	7h 22m	95%	86%
United Details →	ORD 08:40 → MCI 10:29UA 1484	2h 01m Kansas City	MCI 12:30 → IAD 16:03UA 688	6h 23m	97%	85%
United Details →	ORD 10:54 → DEN 12:45UA 581	1h 08m Denver	DEN 13:53 → IAD 19:22UA 347	7h 28m	97%	85%
United Details →	ORD 08:50 → MSP 10:36UA 2805	1h 53m Minneapolis	MSP 12:29 → IAD 15:56UA 1951	6h 06m	97%	84%
United Details →	ORD 09:05 → CLE 11:41UA 3422 · flown by Republic	3h 21m Cleveland	CLE 15:02 → IAD 16:20UA 780	6h 15m	100%	83%
Tight connection: often missed
United Details →	ORD 08:45 → DFW 11:29UA 528	56m Dallas-Fort Worth	DFW 12:25 → IAD 16:31UA 358	6h 46m	75%	64%
United Details →	ORD 10:51 → EWR 14:17UA 1856	51m Newark	EWR 15:08 → IAD 16:32UA 1992	4h 41m	72%	46%
American Details →	ORD 14:59 → DFW 17:36AA 2257	1h 08m Dallas-Fort Worth	DFW 18:44 → IAD 22:46AA 1132	6h 53m	68%	30%

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 18m · leaves 05:00 1%

LGA · 1h 18m · leaves 06:00 4%

ATL · 1h 17m · leaves 05:30 7%

Afternoon and evening

MSP · 52m · leaves 14:30 40%

CLT · 46m · leaves 18:47 50%

BNA · 50m · leaves 15:49 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.


American AA 4500 ORD 08:10 → RIC United UA 4549 RIC 15:00 → IAD Connection details →	3h 30m	6h 55m	100%	91%
American AA 4746 ORD 08:05 → MDT United UA 4268 MDT 14:52 → IAD Connection details →	3h 41m	6h 45m	100%	85%
American AA 4643 ORD 08:00 → ORF United UA 4023 ORF 15:00 → IAD Connection details →	3h 32m	7h 09m	100%	84%

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