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 6% of the time at 7 am and 1 time in 4 at 4 pm.

Nonstops (seasonal or thin)


United	JAX	IAD	1h 56m	92%	0.9%	890	Flying now
Allegiant	JAX	IAD	2h 01m	56%	0.0%	61	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.


American + Unitedtwo ticketsDetails →	JAX 08:00 → MIA 09:20AA 3492 · flown by Envoy	3h 50m Miami	MIA 13:10 → IAD 15:53UA 2435	7h 53m	100%	87%
United Details →	JAX 07:20 → ORD 09:12UA 1733	1h 55m Chicago	ORD 11:07 → IAD 14:12UA 1869	6h 52m	97%	85%
Delta + Unitedtwo ticketsDetails →	JAX 05:30 → ATL 06:42DL 2722	2h 43m Atlanta	ATL 09:25 → IAD 11:15UA 632	5h 45m	98%	84%
Southwest + Unitedtwo ticketsDetails →	JAX 06:20 → BNA 06:50WN 2155	1h 40m Nashville	BNA 08:30 → IAD 11:17UA 1709	4h 57m	98%	84%
American + Unitedtwo ticketsDetails →	JAX 06:19 → CLT 07:46AA 1834	2h 41m Charlotte	CLT 10:27 → IAD 11:55UA 4012 · flown by Mesa	5h 36m	98%	84%
Delta Details →	JAX 08:20 → ATL 09:36DL 2569	2h 41m Atlanta	ATL 12:17 → IAD 14:02DL 2135	5h 42m	98%	83%
Delta Details →	JAX 07:00 → ATL 08:15DL 2450	1h 35m Atlanta	ATL 09:50 → IAD 11:39DL 1444	4h 38m	99%	81%
American + Unitedtwo ticketsDetails →	JAX 09:47 → PHL 11:59AA 2865	3h 11m Philadelphia	PHL 15:10 → IAD 16:18UA 3593 · flown by Republic	6h 31m	97%	78%
Tight connection: often missed
Delta Details →	JAX 14:48 → ATL 16:05DL 3024	47m Atlanta	ATL 16:52 → IAD 18:42DL 2902	3h 54m	74%	49%
United Details →	JAX 18:35 → ORD 20:34UA 6012 · flown by SkyWest	1h 06m Chicago	ORD 21:40 → IAD 00:45 +1UA 2766	6h 10m	73%	47%
Frontier Details →	JAX 18:29 → ATL 20:12F9 3083	1h 04m Atlanta	ATL 21:16 → IAD 23:09F9 3692	4h 40m	41%	23%

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

EWR · 1h 17m · leaves 06:24 3%

ATL · 1h 01m · leaves 05:30 6%

IAH · 1h 19m · leaves 09:20 11%

Afternoon and evening

DTW · 53m · leaves 18:22 21%

CLT · 46m · leaves 18:11 57%

ATL · 1h 04m · leaves 18:29 59%

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