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 7% of the time at 8 am and 58% of the time at 7 pm.

Nonstops


Delta	DCA	RDU	1h 17m	70%	3.7%	1,001	Flying now
American	DCA	RDU	1h 20m	68%	4.4%	2,010	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.


United Details →	DCA 06:00 → EWR 07:19UA 4167 · flown by GoJet	2h 41m Newark	EWR 10:00 → RDU 11:52UA 3631 · flown by Republic	5h 52m	98%	88%
Delta Details →	DCA 06:00 → ATL 07:48DL 410	3h 26m Atlanta	ATL 11:14 → RDU 12:44DL 1488	6h 44m	99%	87%
United Details →	DCA 07:15 → ORD 08:28UA 2638	2h 20m Chicago	ORD 10:48 → RDU 14:01UA 2616	6h 46m	100%	84%
Delta Details →	DCA 06:00 → DTW 07:30DL 2869	2h 45m Detroit	DTW 10:15 → RDU 11:57DL 2164	6h 00m	98%	84%
Delta Details →	DCA 06:00 → BOS 07:40DL 5710 · flown by Republic	2h 20m Boston	BOS 10:00 → RDU 12:04DL 2118	6h 04m	100%	83%
Delta Details →	DCA 08:00 → ATL 09:52DL 343	3h 10m Atlanta	ATL 13:02 → RDU 14:29DL 2026	6h 29m	97%	83%
United Details →	DCA 06:30 → ORD 07:46UA 1793	1h 24m Chicago	ORD 09:10 → RDU 12:33UA 5326 · flown by SkyWest	6h 03m	97%	82%
American Details →	DCA 06:18 → CLT 07:57AA 1581	3h 07m Charlotte	CLT 11:04 → RDU 12:02AA 2363	5h 44m	97%	82%
Tight connection: often missed
JetBlue Details →	DCA 15:51 → FLL 18:32B6 1579	1h 28m Fort Lauderdale	FLL 20:00 → RDU 22:05B6 2626	6h 16m	73%	43%
American Details →	DCA 11:56 → CLT 13:35AA 1295	51m Charlotte	CLT 14:26 → RDU 15:25AA 2402	3h 29m	63%	37%
Delta Details →	DCA 17:00 → JFK 18:39DL 5713 · flown by Republic	46m New York	JFK 19:25 → RDU 21:38DL 5103 · flown by Endeavor	4h 38m	56%	35%

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 19m · leaves 06:59 4%

BOS · 1h 19m · leaves 06:59 5%

ORD · 1h 05m · leaves 08:25 6%

Afternoon and evening

BOS · 1h 14m · leaves 17:00 41%

JFK · 46m · leaves 17:00 44%

LGA · 50m · leaves 17:40 58%

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 4969 DCA 06:55 → ATL Delta DL 1488 ATL 11:14 → RDU Connection details →	2h 24m	5h 49m	97%	88%
American AA 3976 DCA 08:20 → ATL Delta DL 2026 ATL 13:02 → RDU Connection details →	2h 35m	6h 09m	94%	82%
American AA 1556 DCA 08:00 → BOS Delta DL 2283 BOS 13:00 → RDU Connection details →	3h 25m	7h 04m	100%	81%

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