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 1 time in 10 at 11 am and barely half the time at 7 pm.

Nonstops


United	IAD	DFW	3h 24m	81%	0.8%	960	Flying now
Frontier	IAD	DFW	3h 27m	76%	3.6%	169	Flying now
American	IAD	DFW	3h 21m	76%	3.1%	850	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Dallas-Fort Worth on time. Total trip = scheduled departure to arrival, layover included (Dallas-Fort Worth is 1 h behind Dulles). 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%
United Details →	IAD 06:30 → IAH 08:39UA 1935	52m Houston	IAH 09:31 → DFW 10:57UA 2074	5h 27m	100%	82%
Delta Details →	IAD 06:00 → ATL 07:46DL 2127	2h 06m Atlanta	ATL 09:52 → DFW 11:12DL 961	6h 16m	97%	80%
United Details →	IAD 06:33 → EWR 07:52UA 2147	1h 14m Newark	EWR 09:06 → DFW 11:54UA 454	6h 21m	97%	79%
United Details →	IAD 08:29 → EWR 09:55UA 2396	3h 05m Newark	EWR 13:00 → DFW 15:48UA 2330	8h 19m	99%	78%
Delta Details →	IAD 06:00 → MSP 07:55DL 3996 · flown by SkyWest	2h 08m Minneapolis	MSP 10:03 → DFW 12:30DL 2970	7h 33m	95%	77%
American Details →	IAD 06:33 → CLT 08:00AA 1216	3h 30m Charlotte	CLT 11:30 → DFW 13:16AA 1285	7h 43m	99%	77%
United Details →	IAD 06:10 → ORD 07:27UA 2070	3h 02m Chicago	ORD 10:29 → DFW 13:12UA 441	8h 02m	100%	77%
Tight connection: often missed
United Details →	IAD 15:56 → DEN 18:03UA 395	50m Denver	DEN 18:53 → DFW 21:59UA 1565	7h 03m	72%	49%
Frontier Details →	IAD 13:38 → MCO 16:05F9 4355	54m Orlando	MCO 16:59 → DFW 19:03F9 1481	6h 29m	66%	48%
United Details →	IAD 17:42 → ORD 18:50UA 2497	1h 00m Chicago	ORD 19:50 → DFW 22:36UA 1673	5h 54m	48%	30%

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

ORD · 1h 12m · leaves 10:31 7%

IAH · 1h 06m · leaves 08:40 9%

ATL · 1h 11m · leaves 08:27 12%

Afternoon and evening

MCO · 54m · leaves 13:38 34%

IAH · 54m · leaves 14:53 37%

ORD · 1h 00m · leaves 17:42 52%

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.


United UA 637 IAD 08:30 → AUS American AA 4095 AUS 13:56 → DFW Connection details →	3h 00m	7h 40m	100%	86%
United UA 1108 IAD 08:25 → CHS American AA 5396 CHS 12:58 → DFW Connection details →	2h 47m	7h 25m	99%	86%
United UA 4961 IAD 08:15 → GSP American AA 3986 GSP 13:40 → DFW Connection details →	3h 45m	8h 07m	99%	80%

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