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 5 at 10 am and 36% of the time at 3 pm.

Best connections, one ticket

Ranked by chance you reach Burbank on time. Total trip = scheduled departure to arrival, layover included (Burbank is 3 h behind Dulles). Layovers up to 4 hours. Pick a connection for the details.


United Details →	IAD 06:30 → DEN 08:22UA 2031	2h 53m Denver	DEN 11:15 → BUR 12:48UA 2154	9h 18m	100%	85%
United Details →	IAD 12:40 → SFO 15:27UA 1434	2h 27m San Francisco	SFO 17:54 → BUR 19:20UA 1321	9h 40m	96%	83%
United Details →	IAD 14:51 → SFO 17:38UA 2862	2h 42m San Francisco	SFO 20:20 → BUR 21:47UA 1367	9h 56m	96%	81%
United Details →	IAD 06:30 → SFO 09:12UA 1095	1h 11m San Francisco	SFO 10:23 → BUR 11:49UA 2115	8h 19m	92%	74%
Delta Details →	IAD 06:00 → ATL 07:46DL 2127	3h 32m Atlanta	ATL 11:18 → BUR 12:57DL 483	9h 57m	98%	71%
Alaska Details →	IAD 06:03 → SEA 08:48AS 409	2h 32m Seattle	SEA 11:20 → BUR 13:56AS 529	10h 53m	98%	68%
United Details →	IAD 08:35 → SFO 11:19UA 1147	2h 31m San Francisco	SFO 13:50 → BUR 15:17UA 626	9h 42m	98%	67%
United Details →	IAD 14:35 → DEN 16:29UA 1126	2h 44m Denver	DEN 19:13 → BUR 20:43UA 2411	9h 08m	99%	67%
Tight connection: often missed
Alaska Details →	IAD 06:03 → SEA 08:48AS 409	55m Seattle	SEA 09:43 → BUR 12:23AS 426	9h 20m	59%	49%
United Details →	IAD 12:40 → SFO 15:27UA 1434	48m San Francisco	SFO 16:15 → BUR 17:42UA 2764	8h 02m	64%	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

SFO · 1h 11m · leaves 06:30 8%

ATL · 1h 01m · leaves 08:27 16%

SLC · 53m · leaves 07:15 21%

Afternoon and evening

DEN · 1h 10m · leaves 15:56 15%

SFO · 48m · leaves 12:40 36%

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 2156 IAD 13:00 → LAS Southwest WN 2201 LAS 17:55 → BUR Connection details →	2h 46m	9h 05m	100%	70%
United UA 2241 IAD 13:10 → SEA Alaska AS 1585 SEA 17:58 → BUR Connection details →	2h 03m	10h 29m	90%	68%
United UA 2101 IAD 09:00 → SEA Alaska AS 331 SEA 15:10 → BUR Connection details →	3h 19m	11h 45m	100%	63%

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