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 5% of the time at 9 am and 31% of the time at 10 pm.

Nonstops


Southwest	BWI	RDU	1h 15m	82%	2.5%	1,789	Flying now
Spirit	BWI	RDU	–	100%few flights	0.0%	3	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	BWI 07:00 → ATL 08:56DL 2579	2h 18m Atlanta	ATL 11:14 → RDU 12:44DL 1488	5h 44m	99%	88%
Southwest Details →	BWI 06:25 → STL 07:45WN 1109	2h 10m St Louis	STL 09:55 → RDU 12:45WN 297	6h 20m	100%	87%
United Details →	BWI 06:15 → ORD 07:30UA 709	1h 40m Chicago	ORD 09:10 → RDU 12:33UA 5326 · flown by SkyWest	6h 18m	100%	86%
American Details →	BWI 06:03 → ORD 07:30AA 3889 · flown by Envoy	1h 59m Chicago	ORD 09:29 → RDU 12:48AA 4756 · flown by Republic	6h 45m	96%	85%
American Details →	BWI 06:15 → CLT 07:53AA 2670	3h 11m Charlotte	CLT 11:04 → RDU 12:02AA 2363	5h 47m	99%	85%
Delta Details →	BWI 05:40 → ATL 07:31DL 2950	1h 12m Atlanta	ATL 08:43 → RDU 10:10DL 1699	4h 30m	95%	85%
Delta Details →	BWI 08:17 → ATL 10:15DL 2562	2h 47m Atlanta	ATL 13:02 → RDU 14:29DL 2026	6h 12m	99%	85%
Delta Details →	BWI 06:08 → DTW 07:40DL 2601	2h 35m Detroit	DTW 10:15 → RDU 11:57DL 2164	5h 52m	98%	84%
Tight connection: often missed
American Details →	BWI 20:16 → CLT 21:55AA 1637	1h 02m Charlotte	CLT 22:57 → RDU 23:58AA 494	3h 42m	65%	46%
United Details →	BWI 15:03 → IAH 17:19UA 2095	49m Houston	IAH 18:08 → RDU 21:59UA 2498	6h 56m	49%	38%
Frontier Details →	BWI 19:21 → ATL 21:39F9 1079	1h 01m Atlanta	ATL 22:40 → RDU 00:10 +1F9 1670	4h 52m	69%	32%

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 14m · leaves 07:00 5%

ORD · 1h 06m · leaves 05:44 7%

TPA · 1h 05m · leaves 06:45 9%

Afternoon and evening

CLT · 1h 02m · leaves 20:16 35%

IAH · 49m · leaves 15:03 51%

MCO · 55m · leaves 18:40 51%

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.


Southwest WN 4689 BWI 06:20 → ATL Delta DL 1488 ATL 11:14 → RDU Connection details →	2h 59m	6h 24m	100%	91%
United UA 709 BWI 06:15 → ORD American AA 4756 ORD 09:29 → RDU Connection details →	1h 59m	6h 33m	97%	86%
Southwest WN 3931 BWI 08:20 → ATL Delta DL 2026 ATL 13:02 → RDU Connection details →	2h 42m	6h 09m	98%	86%

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