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 → MHT flights land within a few points of 78% on time whatever the hour.

Nonstops (seasonal or thin)


United	IAD	MHT	1h 42m	78%	2.8%	721	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


American Details →	IAD 05:03 → CLT 06:35AA 5054 · flown by PSA	2h 35m Charlotte	CLT 09:10 → MHT 11:37AA 5294 · flown by PSA	6h 34m	94%	74%
American Details →	IAD 09:20 → CLT 10:57AA 5219 · flown by PSA	3h 44m Charlotte	CLT 14:41 → MHT 17:02AA 5288 · flown by PSA	7h 41m	97%	67%

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

CLT · 1h 10m · leaves 06:33 13%

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 4015 IAD 08:35 → PHL American AA 5840 PHL 12:55 → MHT Connection details →	3h 10m	5h 54m	100%	84%
United UA 1252 IAD 10:31 → ORD American AA 4400 ORD 14:19 → MHT Connection details →	2h 26m	7h 16m	95%	79%
United UA 1393 IAD 15:39 → ORD American AA 4149 ORD 20:11 → MHT Connection details →	3h 09m	8h 03m	83%	65%

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