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 3% of the time at 6 am and barely half the time at 7 pm.

Nonstops


United	IAD	DFW	3h 24m	81%	0.8%	960	Flying now
American	DCA	DFW	3h 35m	79%	3.1%	3,301	Flying now
Southwest	BWI	DAL	3h 20m	77%	1.6%	1,803	Flying now
Frontier	IAD	DFW	3h 27m	76%	3.6%	169	Flying now
American	IAD	DFW	3h 21m	76%	3.1%	850	Flying now
American	BWI	DFW	3h 28m	75%	3.5%	969	Flying now
Southwest	DCA	DAL	3h 20m	73%	1.8%	1,733	Flying now
Frontier	BWI	DFW	3h 39m	68%	1.8%	277	Flying now
Spirit	BWI	DFW	3h 38m	86%	0.0%	92	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	IAD 06:30 → DEN 08:22UA 2031	1h 18m Denver	DEN 09:40 → DFW 12:48UA 355	7h 18m	100%	94%
American Details →	DCA 07:30 → MCI 09:24AA 5268 · flown by PSA	2h 52m Kansas City	MCI 12:16 → DFW 14:06AA 3661 · flown by Envoy	7h 36m	99%	90%
Delta Details →	BWI 05:40 → ATL 07:31DL 2950	2h 44m Atlanta	ATL 10:15 → DAL 11:24DL 1115	6h 44m	99%	87%
Southwest Details →	BWI 06:50 → HOU 09:00WN 3246	2h 30m Houston	HOU 11:30 → DAL 12:40WN 22	6h 50m	100%	84%
Delta Details →	IAD 08:27 → ATL 10:17DL 3080	3h 42m Atlanta	ATL 13:59 → DAL 15:03DL 512	7h 45m	98%	82%
American Details →	DCA 07:45 → MCO 10:14AA 3273	1h 02m Orlando	MCO 11:16 → DFW 13:07AA 2124	6h 22m	97%	82%
United Details →	IAD 06:30 → IAH 08:39UA 1935	52m Houston	IAH 09:31 → DFW 10:57UA 2074	5h 27m	100%	82%
Southwest Details →	DCA 07:35 → MKE 08:35WN 1450	1h 30m Milwaukee	MKE 10:05 → DAL 12:25WN 2939	5h 50m	93%	82%
Tight connection: often missed
Southwest Details →	BWI 16:55 → DEN 18:55WN 939	1h 35m Denver	DEN 20:30 → DAL 23:30WN 1523	7h 35m	69%	26%
American Details →	DCA 14:54 → RSW 17:36AA 2454	46m Fort Myers	RSW 18:22 → DFW 20:24AA 2446	6h 30m	50%	25%
American Details →	DCA 19:10 → MIA 22:00AA 3244	49m Miami	MIA 22:49 → DFW 00:59 +1AA 2343	6h 49m	43%	21%

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 02m · leaves 07:45 3%

IAH · 1h 18m · leaves 06:00 3%

ORD · 1h 17m · leaves 10:32 3%

Afternoon and evening

MIA · 49m · leaves 19:10 57%

IAH · 46m · leaves 15:03 60%

SAN · 50m · leaves 15:00 70%

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 4215 BWI 08:15 → MCI American AA 3661 MCI 12:16 → DFW Connection details →	2h 18m	6h 51m	100%	92%
Southwest WN 4627 BWI 06:15 → FLL American AA 2210 FLL 11:59 → DFW Connection details →	3h 04m	8h 57m	100%	92%
Southwest WN 4689 BWI 06:20 → ATL Delta DL 1115 ATL 10:15 → DAL Connection details →	2h 00m	6h 04m	100%	90%

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