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 90-minute layover misses 4% of the time at 9 am and 30% of the time at 9 pm.

Nonstops


Southwest	DCA	HOU	3h 30m	77%	1.8%	1,053	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Houston on time. Total trip = scheduled departure to arrival, layover included (Houston is 1 h behind Washington). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	DCA 06:00 → MCO 08:20WN 4580	1h 20m Orlando	MCO 09:40 → HOU 11:10WN 3174	6h 10m	98%	87%
Delta Details →	DCA 06:00 → ATL 07:48DL 410	3h 17m Atlanta	ATL 11:05 → HOU 12:11DL 1195	7h 12m	99%	81%
Southwest Details →	DCA 07:30 → MDW 08:25WN 1442	1h 45m Chicago	MDW 10:10 → HOU 12:50WN 2783	6h 20m	94%	79%
Southwest Details →	DCA 06:10 → DAL 08:10WN 1268	2h 20m Dallas	DAL 10:30 → HOU 11:45WN 23	6h 35m	100%	78%
American Details →	DCA 05:00 → DFW 07:22AA 2243	3h 29m Dallas-Fort Worth	DFW 10:51 → HOU 12:16AA 6413 · flown by SkyWest	8h 16m	99%	75%
Delta Details →	DCA 10:16 → ATL 12:08DL 926	3h 03m Atlanta	ATL 15:11 → HOU 16:23DL 2381	7h 09m	99%	75%
Southwest Details →	DCA 06:10 → BNA 07:00WN 1425	1h 00m Nashville	BNA 08:00 → HOU 10:05WN 532	4h 55m	87%	69%
American Details →	DCA 07:59 → DFW 10:31AA 1978	3h 51m Dallas-Fort Worth	DFW 14:22 → HOU 15:44AA 5002 · flown by SkyWest	8h 46m	98%	68%
Tight connection: often missed
Southwest Details →	DCA 18:55 → ATL 20:50WN 4968	2h 00m Atlanta	ATL 22:50 → HOU 00:10 +1WN 207	6h 10m	74%	41%
Southwest Details →	DCA 13:05 → MCO 15:25WN 1440	1h 15m Orlando	MCO 16:40 → HOU 18:15WN 4654	6h 07m	74%	37%
Southwest Details →	DCA 15:35 → MDW 16:45WN 4479	55m Chicago	MDW 17:40 → HOU 20:15WN 2785	5h 40m	54%	25%

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

MCO · 1h 20m · leaves 06:00 2%

DFW · 1h 03m · leaves 05:00 5%

ATL · 1h 13m · leaves 08:00 10%

Afternoon and evening

DFW · 1h 09m · leaves 18:58 34%

MDW · 55m · leaves 15:35 46%

DAL · 1h 00m · leaves 17:20 73%

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 1195 ATL 11:05 → HOU Connection details →	2h 15m	6h 17m	97%	82%
American AA 5268 DCA 07:30 → MCI Southwest WN 2555 MCI 11:55 → HOU Connection details →	2h 31m	7h 35m	95%	79%
American AA 4393 DCA 06:59 → LGA Southwest WN 1711 LGA 10:30 → HOU Connection details →	2h 10m	7h 21m	94%	75%

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