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 Long Beach on time 4 times in 5.

Best connections, any airlines

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


Delta Details →	IAD 07:15 → SLC 09:52DL 432	1h 13m Salt Lake City	SLC 11:05 → LGB 12:02DL 1116	7h 47m	91%	79%
United + Southwesttwo ticketsDetails →	IAD 12:48 → DEN 14:42UA 1587	3h 33m Denver	DEN 18:15 → LGB 20:00WN 1037	10h 07m	99%	55%
United + Southwesttwo ticketsDetails →	IAD 08:15 → DEN 10:10UA 792	3h 55m Denver	DEN 14:05 → LGB 15:35WN 4259	10h 15m	97%	50%
United + Southwesttwo ticketsDetails →	IAD 08:30 → AUS 10:56UA 637	2h 19m Austin	AUS 13:15 → LGB 14:10WN 4915	8h 40m	98%	37%
United + Southwesttwo ticketsDetails →	IAD 13:00 → LAS 15:09UA 2156	2h 56m Las Vegas	LAS 18:05 → LGB 19:15WN 1322	9h 15m	100%	34%
Frontier + Southwesttwo ticketsDetails →	IAD 09:50 → LAS 11:45F9 4277	2h 45m Las Vegas	LAS 14:30 → LGB 15:40WN 3061	8h 50m	95%	26%

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

SLC · 1h 13m · leaves 07:15 9%

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.

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