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, any airlines

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 + Unitedtwo ticketsDetails →	JFK 09:20 → RIC 11:01DL 5316 · flown by Endeavor	3h 59m Richmond	RIC 15:00 → IAD 16:05UA 4549 · flown by GoJet	6h 45m	98%	88%
JetBlue + Unitedtwo ticketsDetails →	JFK 06:30 → SAV 08:48B6 741	3h 17m Savannah	SAV 12:05 → IAD 13:45UA 2057	7h 15m	99%	87%
Delta + Unitedtwo ticketsDetails →	JFK 09:10 → SYR 10:41DL 5436 · flown by Endeavor	3h 59m Syracuse	SYR 14:40 → IAD 16:06UA 4505 · flown by GoJet	6h 56m	99%	85%
JetBlue + Unitedtwo ticketsDetails →	JFK 05:50 → FLL 08:50B6 1	3h 23m Fort Lauderdale	FLL 12:13 → IAD 14:49UA 1421	8h 59m	100%	85%
JetBlue + Unitedtwo ticketsDetails →	JFK 09:45 → ROC 11:20B6 186	3h 40m Rochester	ROC 15:00 → IAD 16:21UA 4521 · flown by GoJet	6h 36m	98%	84%
Delta Details →	JFK 06:00 → ATL 08:24DL 2286	3h 53m Atlanta	ATL 12:17 → IAD 14:02DL 2135	8h 02m	99%	83%
Delta + Unitedtwo ticketsDetails →	JFK 06:00 → BOS 07:24DL 5765 · flown by Republic	2h 01m Boston	BOS 09:25 → IAD 11:07UA 2098	5h 07m	95%	82%
American + Unitedtwo ticketsDetails →	JFK 05:59 → CLT 07:57AA 2643	2h 30m Charlotte	CLT 10:27 → IAD 11:55UA 4012 · flown by Mesa	5h 56m	97%	82%
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.

The table above includes two-ticket connections (marked “two tickets”), held to the 90-minute minimum. One ticket only →

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