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 9 am and 62% of the time at 7 pm.

Nonstops


Delta	CVG	DCA	1h 33m	66%	2.3%	998	Flying now
American	CVG	DCA	1h 38m	64%	5.0%	1,017	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	CVG 06:00 → ORD 06:36UA 5618 · flown by SkyWest	3h 24m Chicago	ORD 10:00 → DCA 13:04UA 1381	7h 04m	100%	85%
American Details →	CVG 05:08 → CLT 06:35AA 429	1h 25m Charlotte	CLT 08:00 → DCA 09:29AA 1977	4h 25m	95%	84%
United Details →	CVG 06:35 → IAH 08:11UA 2442	1h 36m Houston	IAH 09:47 → DCA 13:57UA 2670	7h 22m	97%	84%
American Details →	CVG 06:30 → MIA 09:08AA 3638 · flown by Envoy	2h 51m Miami	MIA 11:59 → DCA 14:44AA 1606	8h 14m	99%	84%
Delta Details →	CVG 06:19 → DTW 07:36DL 5307 · flown by Endeavor	2h 29m Detroit	DTW 10:05 → DCA 11:34DL 2476	5h 15m	98%	82%
American Details →	CVG 07:10 → BOS 09:25AA 3807 · flown by Envoy	2h 27m Boston	BOS 11:52 → DCA 13:44AA 4349 · flown by Republic	6h 34m	100%	82%
Delta Details →	CVG 06:00 → MSP 06:57DL 2752	3h 29m Minneapolis	MSP 10:26 → DCA 13:48DL 2983	7h 49m	99%	81%
Delta Details →	CVG 06:00 → BOS 08:22DL 5790 · flown by Republic	2h 03m Boston	BOS 10:25 → DCA 12:12DL 5592 · flown by Republic	6h 12m	98%	80%
Tight connection: often missed
Delta Details →	CVG 16:26 → ATL 18:00DL 3169	55m Atlanta	ATL 18:55 → DCA 20:48DL 325	4h 22m	67%	39%
American Details →	CVG 19:07 → ORD 19:59AA 6230 · flown by SkyWest	56m Chicago	ORD 20:55 → DCA 23:59AA 1187	4h 52m	58%	28%
United Details →	CVG 18:12 → ORD 18:50UA 1813	55m Chicago	ORD 19:45 → DCA 22:54UA 2160	4h 42m	38%	20%

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 · 53m · leaves 06:00 6%

ATL · 1h 15m · leaves 08:15 6%

BOS · 56m · leaves 07:10 7%

Afternoon and evening

JFK · 1h 05m · leaves 18:00 24%

ATL · 55m · leaves 16:26 33%

ORD · 55m · leaves 18:12 62%

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 4094 CVG 06:00 → ORD United UA 1381 ORD 10:00 → DCA Connection details →	3h 28m	7h 04m	97%	81%
Delta DL 5790 CVG 06:00 → BOS American AA 4349 BOS 11:52 → DCA Connection details →	3h 30m	7h 44m	99%	79%
Delta DL 2441 CVG 05:34 → ATL American AA 5050 ATL 08:58 → DCA Connection details →	1h 54m	5h 26m	97%	76%

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