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 one-hour layover misses 6% of the time at 8 am and 1 time in 3 at 10 pm.

Nonstops


Delta	DTW	LAS	4h 20m	76%	0.5%	1,883	Flying now
Southwest	DTW	LAS	4h 25m	71%	0.0%	337	Flying now
Frontier	DTW	LAS	4h 41m	69%	0.0%	71	Flying now
Spirit	DTW	LAS	4h 31m	80%	0.8%	501	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Southwest Details →	DTW 05:50 → BWI 07:20WN 4534	2h 15m Baltimore	BWI 09:35 → LAS 11:35WN 974	8h 45m	100%	91%
United Details →	DTW 06:15 → IAH 08:11UA 1229	3h 44m Houston	IAH 11:55 → LAS 13:13UA 1524	9h 58m	100%	88%
United Details →	DTW 10:13 → IAD 11:50UA 3500 · flown by Republic	1h 10m Dulles	IAD 13:00 → LAS 15:09UA 2156	7h 56m	94%	86%
United Details →	DTW 07:05 → ORD 07:42UA 5553 · flown by SkyWest	3h 18m Chicago	ORD 11:00 → LAS 13:05UA 2440	9h 00m	97%	85%
United Details →	DTW 05:30 → ORD 05:53UA 3483 · flown by Republic	3h 07m Chicago	ORD 09:00 → LAS 11:08UA 723	8h 38m	100%	82%
Southwest Details →	DTW 05:30 → DEN 06:35WN 1778	1h 05m Denver	DEN 07:40 → LAS 08:35WN 1559	6h 05m	93%	82%
Alaska Details →	DTW 07:01 → SEA 09:00AS 344	4h 00m Seattle	SEA 13:00 → LAS 15:35AS 658	11h 34m	100%	82%
American Details →	DTW 07:00 → CLT 08:54AA 1439	2h 32m Charlotte	CLT 11:26 → LAS 13:06AA 2038	9h 06m	98%	82%
Tight connection: often missed
United Details →	DTW 14:10 → ORD 14:47UA 5381 · flown by SkyWest	1h 07m Chicago	ORD 15:54 → LAS 17:57UA 1875	6h 47m	75%	54%
United Details →	DTW 17:29 → SFO 19:40UA 1863	1h 35m San Francisco	SFO 21:15 → LAS 23:10UA 406	8h 41m	70%	53%
Delta Details →	DTW 20:15 → SLC 22:13DL 2117	1h 01m Salt Lake City	SLC 23:14 → LAS 23:40DL 1662	6h 29m	65%	52%

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

MDW · 1h 15m · leaves 08:40 4%

IAD · 1h 10m · leaves 10:13 6%

EWR · 1h 15m · leaves 06:00 6%

Afternoon and evening

ORD · 53m · leaves 18:20 45%

DEN · 1h 12m · leaves 16:42 49%

STL · 1h 00m · leaves 20:15 57%

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 2884 DTW 08:50 → IAD United UA 2156 IAD 13:00 → LAS Connection details →	2h 37m	9h 19m	100%	91%
Delta DL 4456 DTW 07:30 → ORD United UA 2440 ORD 11:00 → LAS Connection details →	3h 01m	8h 35m	97%	85%
Delta DL 2566 DTW 07:00 → EWR United UA 1864 EWR 12:25 → LAS Connection details →	3h 41m	10h 53m	99%	83%

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