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 12% of the time at 11 am and 31% of the time at 6 pm.

Nonstops (seasonal or thin)


Delta	JFK	IAD	1h 32m	78%	4.5%	713	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. Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	JFK 06:00 → ATL 08:24DL 2286	3h 53m Atlanta	ATL 12:17 → IAD 14:02DL 2135	8h 02m	99%	83%
American Details →	JFK 05:59 → CLT 07:57AA 2643	3h 08m Charlotte	CLT 11:05 → IAD 12:38AA 5220 · flown by PSA	6h 39m	98%	79%
Delta Details →	JFK 13:10 → ATL 15:45DL 2342	3h 30m Atlanta	ATL 19:15 → IAD 21:03DL 1309	7h 54m	99%	73%
Delta Details →	JFK 08:40 → ATL 11:14DL 2227	3h 45m Atlanta	ATL 14:59 → IAD 16:47DL 1695	8h 07m	98%	73%
Delta Details →	JFK 17:40 → ATL 20:34DL 2293	2h 19m Atlanta	ATL 22:53 → IAD 00:44 +1DL 2549	7h 04m	94%	68%
Delta Details →	JFK 11:00 → ATL 13:33DL 1029	3h 19m Atlanta	ATL 16:52 → IAD 18:42DL 2902	7h 42m	97%	64%
Delta Details →	JFK 16:30 → DTW 18:55DL 2443	2h 43m Detroit	DTW 21:38 → IAD 23:14DL 3988 · flown by SkyWest	6h 44m	95%	60%
American Details →	JFK 12:00 → CLT 14:09AA 493	3h 55m Charlotte	CLT 18:04 → IAD 19:33AA 2953	7h 33m	96%	59%
Tight connection: often missed
Delta Details →	JFK 15:40 → ATL 18:24DL 1480	51m Atlanta	ATL 19:15 → IAD 21:03DL 1309	5h 24m	69%	51%
American Details →	JFK 17:00 → CLT 19:30AA 3120	1h 01m Charlotte	CLT 20:31 → IAD 22:05AA 5549 · flown by PSA	5h 05m	71%	36%
American Details →	JFK 14:42 → DFW 17:44AA 1953	1h 00m Dallas-Fort Worth	DFW 18:44 → IAD 22:46AA 1132	8h 10m	69%	31%

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

ATL · 1h 03m · leaves 08:40 12%

CLT · 58m · leaves 07:59 16%

Afternoon and evening

CLT · 1h 01m · leaves 17:00 29%

ATL · 51m · leaves 15:40 31%

DFW · 1h 00m · leaves 14:42 31%

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.


Delta DL 5316 JFK 09:20 → RIC United UA 4549 RIC 15:00 → IAD Connection details →	3h 59m	6h 45m	98%	88%
JetBlue B6 741 JFK 06:30 → SAV United UA 2057 SAV 12:05 → IAD Connection details →	3h 17m	7h 15m	99%	87%
Delta DL 5436 JFK 09:10 → SYR United UA 4505 SYR 14:40 → IAD Connection details →	3h 59m	6h 56m	99%	85%

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