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

No clear winner: United’s IAD → SYR flights land within a few points of 4 in 5 on time whatever the hour.

Nonstops


United	IAD	SYR	1h 27m	80%	2.5%	1,327	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Syracuse on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.


United Details →	IAD 06:30 → DEN 08:22UA 2031	1h 23m Denver	DEN 09:45 → SYR 15:12UA 1909	8h 42m	100%	90%
Delta Details →	IAD 11:10 → DTW 12:44DL 2884	2h 20m Detroit	DTW 15:04 → SYR 16:35DL 3565 · flown by SkyWest	5h 25m	100%	79%
Delta Details →	IAD 06:00 → ATL 07:46DL 2127	1h 29m Atlanta	ATL 09:15 → SYR 11:25DL 1375	5h 28m	95%	79%
United Details →	IAD 10:31 → ORD 11:53UA 1252	2h 02m Chicago	ORD 13:55 → SYR 16:48UA 2343	6h 17m	98%	78%
Delta Details →	IAD 10:21 → ATL 12:05DL 1324	3h 38m Atlanta	ATL 15:43 → SYR 17:59DL 2690	7h 38m	97%	75%
Delta Details →	IAD 06:00 → DTW 07:40DL 3826 · flown by SkyWest	3h 48m Detroit	DTW 11:28 → SYR 12:59DL 3533 · flown by SkyWest	6h 59m	96%	73%
United Details →	IAD 14:35 → DEN 16:29UA 1126	1h 41m Denver	DEN 18:10 → SYR 23:44UA 2350	9h 09m	96%	72%
Delta Details →	IAD 08:27 → ATL 10:17DL 3080	2h 20m Atlanta	ATL 12:37 → SYR 14:48DL 2991	6h 21m	97%	70%
Tight connection: often missed
United Details →	IAD 15:39 → ORD 17:02UA 1393	1h 07m Chicago	ORD 18:09 → SYR 21:09UA 2481	5h 30m	69%	44%

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 4015 IAD 08:35 → PHL American AA 5924 PHL 13:12 → SYR Connection details →	3h 27m	5h 59m	100%	83%
United UA 1775 IAD 08:15 → ORD American AA 3819 ORD 13:23 → SYR Connection details →	3h 47m	8h 11m	100%	82%
United UA 379 IAD 08:45 → MCO JetBlue B6 2656 MCO 14:44 → SYR Connection details →	3h 36m	8h 48m	99%	77%

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