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 4% of the time at 7 am and 2 times in 5 at 7 pm.

Nonstops


Delta	RDU	ATL	1h 31m	89%	1.5%	3,809	Flying now
Frontier	RDU	ATL	1h 43m	75%	2.3%	612	Flying now
Southwest	RDU	ATL	1h 30m	91%	0.9%	216	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Southwest Details →	RDU 06:25 → STL 07:30WN 3435	2h 30m St Louis	STL 10:00 → ATL 12:35WN 236	6h 10m	98%	91%
Southwest Details →	RDU 06:10 → BWI 07:15WN 3422	1h 05m Baltimore	BWI 08:20 → ATL 10:20WN 3931	4h 08m	97%	89%
Delta Details →	RDU 08:00 → MCI 09:42DL 5230 · flown by Endeavor	2h 39m Kansas City	MCI 12:21 → ATL 15:28DL 2908	7h 28m	98%	85%
Delta Details →	RDU 06:25 → TPA 08:18DL 1279	1h 42m Tampa	TPA 10:00 → ATL 11:35DL 2605	5h 10m	97%	85%
United Details →	RDU 06:00 → IAD 07:11UA 1789	1h 04m Dulles	IAD 08:15 → ATL 10:14UA 2739	4h 14m	96%	84%
American Details →	RDU 05:01 → CLT 06:00AA 1903	3h 10m Charlotte	CLT 09:10 → ATL 10:41AA 5039 · flown by PSA	5h 40m	99%	83%
Delta Details →	RDU 05:33 → DTW 07:18DL 1388	3h 07m Detroit	DTW 10:25 → ATL 12:25DL 2856	6h 50m	98%	83%
Delta Details →	RDU 07:00 → AUS 09:11DL 4921 · flown by Endeavor	1h 24m Austin	AUS 10:35 → ATL 13:52DL 2976	6h 52m	95%	83%
Tight connection: often missed
Delta Details →	RDU 16:05 → BOS 18:12DL 1075	1h 03m Boston	BOS 19:15 → ATL 22:19DL 973	6h 14m	68%	53%
Delta Details →	RDU 11:29 → LGA 13:12DL 4667 · flown by Endeavor	1h 48m New York	LGA 15:00 → ATL 17:53DL 974	6h 24m	73%	53%
American Details →	RDU 20:08 → CLT 21:24AA 2394	1h 12m Charlotte	CLT 22:36 → ATL 23:58AA 5498 · flown by PSA	3h 50m	65%	42%

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

BWI · 1h 05m · leaves 06:10 3%

IAD · 1h 04m · leaves 06:00 4%

BOS · 1h 18m · leaves 07:00 4%

Afternoon and evening

BOS · 1h 03m · leaves 16:05 32%

CLT · 1h 12m · leaves 20:08 35%

MCO · 51m · leaves 17:03 40%

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.


American AA 4532 RDU 07:45 → PIT Southwest WN 3359 PIT 12:25 → ATL Connection details →	3h 13m	6h 25m	99%	91%
Southwest WN 3422 RDU 06:10 → BWI Delta DL 1592 BWI 10:33 → ATL Connection details →	3h 18m	6h 14m	100%	88%
Southwest WN 3435 RDU 06:25 → STL Delta DL 1571 STL 09:24 → ATL Connection details →	1h 54m	5h 37m	94%	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