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

No clear winner: Southwest’s LGB → BWI flights land within a few points of 83% on time whatever the hour.

Nonstops (none in the current schedule)


Southwest	LGB	BWI	4h 55m	83%	0.8%	128	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Southwest Details →	LGB 18:15 → LAS 19:25WN 2485	2h 45m Las Vegas	LAS 22:10 → BWI 05:45 +1WN 2208	8h 30m	100%	91%
Southwest Details →	LGB 16:38 → SMF 18:02WN 4897	3h 38m Sacramento	SMF 21:40 → BWI 05:35 +1WN 3622	9h 57m	100%	83%
Delta Details →	LGB 16:55 → SLC 19:56DL 3793 · flown by SkyWest	3h 44m Salt Lake City	SLC 23:40 → BWI 05:49 +1DL 2079	9h 54m	99%	76%
Southwest Details →	LGB 16:30 → SJC 17:45WN 4307	3h 55m San Jose	SJC 21:40 → BWI 05:45 +1WN 621	10h 15m	100%	74%
Southwest Details →	LGB 07:55 → DEN 11:10WN 4574	3h 25m Denver	DEN 14:35 → BWI 20:00WN 1045	9h 05m	100%	66%
Southwest Details →	LGB 13:25 → LAS 14:35WN 2334	1h 55m Las Vegas	LAS 16:30 → BWI 00:10 +1WN 2206	7h 40m	98%	57%
Southwest Details →	LGB 10:10 → LAS 11:20WN 2234	3h 15m Las Vegas	LAS 14:35 → BWI 22:10WN 2205	9h 03m	100%	45%
Southwest Details →	LGB 08:15 → MDW 14:05WN 4542	3h 15m Chicago	MDW 17:20 → BWI 20:15WN 4616	9h 00m	100%	44%
Tight connection: often missed
Southwest Details →	LGB 19:55 → SLC 22:40WN 2229	55m Salt Lake City	SLC 23:35 → BWI 05:40 +1WN 3735	6h 45m	55%	45%
Southwest Details →	LGB 14:50 → DEN 18:05WN 2479	1h 00m Denver	DEN 19:05 → BWI 00:35 +1WN 1500	6h 43m	41%	11%

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.

Afternoon and evening

SMF · 52m · leaves 19:22 24%

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.


Delta DL 3793 LGB 16:55 → SLC Southwest WN 3735 SLC 23:35 → BWI Connection details →	3h 39m	9h 45m	98%	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