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 4% of the time at 9 am and 37% of the time at 10 pm.

Nonstops


United	DFW	IAD	3h 06m	84%	1.1%	961	Flying now
Frontier	DFW	IAD	3h 13m	84%	3.0%	169	Flying now
American	DFW	IAD	2h 58m	71%	2.9%	850	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	DFW 18:45 → DEN 20:15UA 1602	3h 44m Denver	DEN 23:59 → IAD 05:27 +1UA 1924	9h 42m	97%	90%
United Details →	DFW 05:45 → DEN 06:53UA 773	1h 07m Denver	DEN 08:00 → IAD 13:26UA 1101	6h 41m	97%	89%
United Details →	DFW 08:45 → DEN 10:06UA 644	3h 47m Denver	DEN 13:53 → IAD 19:22UA 347	9h 37m	100%	87%
United Details →	DFW 05:10 → IAH 06:22UA 2260	58m Houston	IAH 07:20 → IAD 11:28UA 1549	5h 18m	95%	85%
Delta Details →	DFW 05:30 → ATL 08:42DL 401	3h 35m Atlanta	ATL 12:17 → IAD 14:02DL 2135	7h 32m	99%	81%
United Details →	DFW 07:08 → ORD 09:50UA 1695	1h 17m Chicago	ORD 11:07 → IAD 14:12UA 1869	6h 04m	93%	80%
American Details →	DFW 05:00 → CLT 08:38AA 575	2h 27m Charlotte	CLT 11:05 → IAD 12:38AA 5220 · flown by PSA	6h 38m	99%	80%
United Details →	DFW 07:00 → IAH 08:26UA 2670	3h 47m Houston	IAH 12:13 → IAD 16:30UA 2366	8h 30m	99%	79%
Tight connection: often missed
Frontier Details →	DFW 22:51 → LAS 23:47F9 3885	59m Las Vegas	LAS 00:46 → IAD 08:20 +1F9 4278	8h 30m	72%	46%
United Details →	DFW 14:15 → ORD 16:57UA 2160	1h 15m Chicago	ORD 18:12 → IAD 21:22UA 2202	6h 07m	71%	39%
Frontier Details →	DFW 16:16 → ATL 19:50F9 2496	1h 26m Atlanta	ATL 21:16 → IAD 23:09F9 3692	5h 53m	66%	36%

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

DEN · 1h 07m · leaves 05:45 3%

ATL · 1h 08m · leaves 05:30 4%

IAH · 58m · leaves 05:10 5%

Afternoon and evening

IAH · 58m · leaves 14:15 31%

DEN · 53m · leaves 16:50 45%

CLT · 46m · leaves 15:57 76%

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 3401 DFW 07:00 → AUS United UA 2344 AUS 12:00 → IAD Connection details →	3h 56m	8h 19m	100%	88%
American AA 1836 DFW 07:38 → SAT United UA 2250 SAT 12:01 → IAD Connection details →	3h 15m	7h 50m	97%	86%
American AA 2183 DFW 07:01 → MSY United UA 2497 MSY 12:17 → IAD Connection details →	3h 47m	7h 49m	98%	86%

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