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

No clear winner: Allegiant’s ATW → LAS flights land within a few points of 4 in 5 on time whatever the hour.

Nonstops (seasonal or thin)


Allegiant	ATW	LAS	4h 01m	81%	0.6%	171	Flying now

Best connections, any airlines

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 2 h behind Appleton). Layovers up to 4 hours. Pick a connection for the details.


American + Unitedtwo ticketsDetails →	ATW 05:00 → ORD 06:14AA 3763 · flown by Envoy	2h 46m Chicago	ORD 09:00 → LAS 11:08UA 723	8h 08m	99%	85%
American + Frontiertwo ticketsDetails →	ATW 06:00 → DFW 08:49AA 3673 · flown by Envoy	3h 07m Dallas-Fort Worth	DFW 11:56 → LAS 12:57F9 1051	8h 57m	97%	82%
United Details →	ATW 08:15 → ORD 09:45UA 4190 · flown by GoJet	1h 15m Chicago	ORD 11:00 → LAS 13:05UA 2440	6h 50m	93%	81%
Delta Details →	ATW 11:27 → MSP 12:48DL 4951 · flown by Endeavor	2h 03m Minneapolis	MSP 14:51 → LAS 16:10DL 1542	6h 43m	89%	75%
Delta Details →	ATW 05:31 → ATL 08:43DL 1436	2h 17m Atlanta	ATL 11:00 → LAS 12:10DL 466	8h 39m	94%	73%
Delta Details →	ATW 06:00 → MSP 07:20DL 4995 · flown by Endeavor	3h 50m Minneapolis	MSP 11:10 → LAS 12:26DL 2238	8h 28m	94%	73%
Delta Details →	ATW 07:00 → DTW 09:25DL 4176 · flown by SkyWest	2h 53m Detroit	DTW 12:18 → LAS 13:36DL 421	8h 35m	96%	72%
American + Unitedtwo ticketsDetails →	ATW 11:15 → ORD 12:32AA 3391 · flown by Envoy	3h 22m Chicago	ORD 15:54 → LAS 17:57UA 1875	8h 42m	97%	71%
Tight connection: often missed
United Details →	ATW 17:29 → ORD 18:59UA 4633 · flown by SkyWest	51m Chicago	ORD 19:50 → LAS 21:59UA 2242	6h 30m	55%	40%

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

ORD · 1h 15m · leaves 08:15 7%

ATL · 1h 12m · leaves 05:31 14%

DEN · 51m · leaves 08:45 19%

Afternoon and evening

MSP · 1h 20m · leaves 16:16 14%

CLT · 1h 02m · leaves 14:03 24%

ORD · 51m · leaves 17:29 45%

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