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 90-minute layover misses 1% of the time at 9 am and 1 time in 4 at 8 pm.

Nonstops


Delta	LAS	ATL	3h 58m	87%	0.8%	3,322	Flying now
Southwest	LAS	ATL	3h 50m	84%	0.6%	720	Flying now
Frontier	LAS	ATL	4h 10m	76%	1.6%	575	Flying now
Spirit	LAS	ATL	3h 59m	87%	0.6%	154	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Southwest Details →	LAS 22:10 → BWI 05:45WN 2208	2h 35m Baltimore	BWI 08:20 → ATL 10:20 +1WN 3931	9h 08m	100%	92%
Delta Details →	LAS 22:14 → CVG 05:00DL 2794	3h 15m Hebron	CVG 08:15 → ATL 09:45 +1DL 3076	8h 31m	100%	92%
Southwest Details →	LAS 23:55 → MDW 05:25WN 2276	1h 50m Chicago	MDW 07:15 → ATL 10:05 +1WN 3054	7h 10m	97%	90%
American Details →	LAS 23:20 → PHL 07:07AA 437	2h 25m Philadelphia	PHL 09:32 → ATL 11:53 +1AA 4338 · flown by Republic	9h 33m	97%	88%
American Details →	LAS 22:41 → CLT 06:00AA 1454	3h 10m Charlotte	CLT 09:10 → ATL 10:41 +1AA 5039 · flown by PSA	9h 00m	100%	86%
Southwest Details →	LAS 22:50 → MCO 06:25WN 4590	1h 35m Orlando	MCO 08:00 → ATL 09:35 +1WN 2591	7h 45m	98%	86%
United Details →	LAS 23:30 → ORD 05:11UA 2102	2h 01m Chicago	ORD 07:12 → ATL 10:27 +1UA 425	7h 57m	98%	85%
United Details →	LAS 06:00 → SFO 07:35UA 643	1h 10m San Francisco	SFO 08:45 → ATL 16:48UA 702	7h 48m	99%	84%
Tight connection: often missed
Delta Details →	LAS 23:30 → JFK 07:25DL 498	1h 15m New York	JFK 08:40 → ATL 11:14 +1DL 2227	8h 44m	70%	58%
Frontier Details →	LAS 22:18 → TPA 05:54F9 1258	1h 06m Tampa	TPA 07:00 → ATL 09:01 +1F9 1853	7h 43m	67%	47%
American Details →	LAS 13:56 → CLT 21:36AA 2038	1h 00m Charlotte	CLT 22:36 → ATL 23:58AA 5498 · flown by PSA	7h 02m	69%	46%

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 10m · leaves 06:00 1%

DEN · 55m · leaves 06:30 2%

LAX · 1h 10m · leaves 09:42 5%

Afternoon and evening

DFW · 46m · leaves 15:23 52%

HOU · 1h 10m · leaves 15:48 52%

DEN · 1h 05m · leaves 15:00 53%

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.


Southwest WN 2267 LAS 20:55 → MCI Delta DL 1204 MCI 05:38 → ATL Connection details →	3h 56m	8h 49m	100%	93%
Southwest WN 4494 LAS 17:45 → TPA Delta DL 2330 TPA 05:15 → ATL Connection details →	4h 00m	10h 03m	100%	93%
Southwest WN 2969 LAS 17:55 → DEN Delta DL 302 DEN 00:40 → ATL Connection details →	3h 50m	8h 47m	100%	91%

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