Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

No nonstop, and no clear pattern: the best connection reaches Dulles on time 78% of the time.

Best connections, any airlines

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


Southwest + Unitedtwo ticketsDetails →	LGB 07:55 → DEN 11:10WN 4574	2h 43m Denver	DEN 13:53 → IAD 19:22UA 347	8h 27m	100%	87%
Delta Details →	LGB 13:00 → SLC 15:51DL 1116	1h 39m Salt Lake City	SLC 17:30 → IAD 23:30DL 847	7h 30m	96%	78%
Southwest + Unitedtwo ticketsDetails →	LGB 10:10 → LAS 11:20WN 2234	2h 03m Las Vegas	LAS 13:23 → IAD 21:06UA 2382	7h 56m	94%	76%
Southwest + Unitedtwo ticketsDetails →	LGB 09:45 → DEN 13:00WN 4238	2h 40m Denver	DEN 15:40 → IAD 21:11UA 421	8h 26m	96%	68%
Southwest + Unitedtwo ticketsDetails →	LGB 10:30 → BNA 16:30WN 165	2h 00m Nashville	BNA 18:30 → IAD 21:23UA 1460	7h 53m	100%	65%

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.

The table above includes two-ticket connections (marked “two tickets”), held to the 90-minute minimum. One ticket only →

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