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 70-minute layover misses 5% of the time at 8 am and 29% of the time at 7 pm.

Nonstops (seasonal or thin)


Delta	BWI	SLC	4h 39m	81%	1.7%	360	Flying now
Southwest	BWI	SLC	4h 50m	76%	1.5%	409	Flying now

Best connections, any airlines

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Salt Lake City on time. Total trip = scheduled departure to arrival, layover included (Salt Lake City is 2 h behind Baltimore). Layovers up to 4 hours. Pick a connection for the details.


Southwest + Deltatwo ticketsDetails →	BWI 09:35 → STL 10:50WN 1110	3h 38m St Louis	STL 14:28 → SLC 16:40DL 2455	9h 05m	100%	90%
Southwest + Unitedtwo ticketsDetails →	BWI 07:10 → LAX 09:35WN 4322	3h 20m Los Angeles	LAX 12:55 → SLC 15:48UA 5371 · flown by SkyWest	10h 38m	100%	89%
Southwest + Deltatwo ticketsDetails →	BWI 06:20 → ATL 08:15WN 4689	1h 50m Atlanta	ATL 10:05 → SLC 12:10DL 387	7h 50m	97%	88%
Southwest + Deltatwo ticketsDetails →	BWI 09:25 → MSY 11:05WN 4692	2h 25m New Orleans	MSY 13:30 → SLC 16:08DL 736	8h 43m	95%	87%
Southwest + Deltatwo ticketsDetails →	BWI 09:45 → BNA 10:35WN 487	3h 26m Nashville	BNA 14:01 → SLC 16:37DL 1593	8h 52m	100%	87%
Southwest + Deltatwo ticketsDetails →	BWI 14:50 → ABQ 16:50WN 4528	3h 09m Albuquerque	ABQ 19:59 → SLC 21:50DL 3726 · flown by SkyWest	9h 00m	95%	87%
Southwest + Deltatwo ticketsDetails →	BWI 08:08 → AUS 10:32WN 865	3h 59m Austin	AUS 14:31 → SLC 16:40DL 3908 · flown by SkyWest	10h 32m	100%	85%
Delta Details →	BWI 07:00 → ATL 08:56DL 2579	2h 58m Atlanta	ATL 11:54 → SLC 13:50DL 663	8h 50m	99%	85%
Tight connection: often missed
Southwest Details →	BWI 07:25 → DEN 09:15WN 935	50m Denver	DEN 10:05 → SLC 11:45WN 4027	6h 15m	72%	58%
United Details →	BWI 17:32 → ORD 18:55UA 590	1h 15m Chicago	ORD 20:10 → SLC 22:48UA 1710	7h 16m	71%	40%
American Details →	BWI 19:17 → DFW 21:42AA 1626	1h 10m Dallas-Fort Worth	DFW 22:52 → SLC 00:36 +1AA 2378	7h 19m	70%	29%

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

CLT · 1h 07m · leaves 06:15 5%

ATL · 1h 09m · leaves 07:00 6%

DEN · 1h 15m · leaves 08:30 6%

Afternoon and evening

ORD · 1h 15m · leaves 17:32 29%

DFW · 1h 10m · leaves 19:17 30%

LAS · 55m · leaves 18:40 52%

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