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 75-minute layover misses 2% of the time at 6 am and 13% of the time at 4 pm.

Nonstops


United	CHS	IAD	1h 38m	84%	1.4%	1,033	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 →	CHS 07:20 → ATL 08:34DL 1664	3h 43m Atlanta	ATL 12:17 → IAD 14:02DL 2135	6h 42m	99%	83%
American Details →	CHS 05:00 → CLT 06:01AA 3298	1h 19m Charlotte	CLT 07:20 → IAD 08:50AA 5219 · flown by PSA	3h 49m	98%	83%
Delta Details →	CHS 05:10 → ATL 06:21DL 3055	3h 29m Atlanta	ATL 09:50 → IAD 11:39DL 1444	6h 28m	100%	83%
United Details →	CHS 06:00 → ORD 07:33UA 2333	1h 07m Chicago	ORD 08:40 → IAD 11:52UA 2277	5h 52m	91%	83%
Delta Details →	CHS 06:00 → JFK 08:01DL 5445 · flown by Endeavor	2h 15m New York	JFK 10:16 → IAD 11:48DL 5835 · flown by Republic	5h 48m	96%	81%
American Details →	CHS 06:41 → CLT 07:47AA 3235	3h 18m Charlotte	CLT 11:05 → IAD 12:38AA 5220 · flown by PSA	5h 57m	99%	80%
Delta Details →	CHS 09:41 → ATL 11:00DL 5450 · flown by Endeavor	3h 59m Atlanta	ATL 14:59 → IAD 16:47DL 1695	7h 06m	100%	76%
Delta Details →	CHS 14:27 → ATL 15:45DL 2179	3h 30m Atlanta	ATL 19:15 → IAD 21:03DL 1309	6h 37m	98%	71%
Tight connection: often missed
Delta Details →	CHS 18:39 → DTW 20:47DL 2676	51m Detroit	DTW 21:38 → IAD 23:14DL 3988 · flown by SkyWest	4h 35m	60%	38%
American Details →	CHS 18:17 → CLT 19:40AA 5672 · flown by PSA	51m Charlotte	CLT 20:31 → IAD 22:05AA 5549 · flown by PSA	3h 48m	68%	35%
American Details →	CHS 15:42 → DFW 17:39AA 1656	1h 05m Dallas-Fort Worth	DFW 18:44 → IAD 22:46AA 1132	7h 10m	68%	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

CLT · 1h 19m · leaves 05:00 2%

ATL · 1h 17m · leaves 09:41 3%

ORD · 1h 07m · leaves 06:00 9%

Afternoon and evening

ATL · 51m · leaves 17:03 21%

CLT · 51m · leaves 18:17 32%

DFW · 1h 05m · leaves 15:42 32%

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 3055 CHS 05:10 → ATL United UA 632 ATL 09:25 → IAD Connection details →	3h 04m	6h 05m	99%	85%
American AA 3235 CHS 06:41 → CLT United UA 4012 CLT 10:27 → IAD Connection details →	2h 40m	5h 14m	99%	84%
American AA 3027 CHS 07:30 → ORD United UA 1869 ORD 11:07 → IAD Connection details →	2h 02m	6h 42m	93%	80%

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