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

No clear winner: airlines and hours on this route all land within a few points of 73% on time.

Nonstops


American	PHX	MKE	3h 25m	79%	1.4%	488	Flying now
Southwest	PHX	MKE	3h 20m	70%	0.6%	960	Flying now
Frontier	PHX	MKE	–	100%few flights	0.0%	4	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Milwaukee on time. Total trip = scheduled departure to arrival, layover included (Milwaukee is 2 h ahead of Phoenix). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	PHX 06:15 → DEN 09:00WN 1706	1h 15m Denver	DEN 10:15 → MKE 13:40WN 1626	5h 25m	98%	95%
Southwest Details →	PHX 11:25 → DEN 14:10WN 681	2h 10m Denver	DEN 16:20 → MKE 19:45WN 1629	6h 20m	100%	92%
Delta Details →	PHX 23:04 → DTW 05:46DL 1566	2h 49m Detroit	DTW 08:35 → MKE 08:51 +1DL 3191	7h 47m	97%	88%
Delta Details →	PHX 23:59 → ATL 06:39DL 929	1h 26m Atlanta	ATL 08:05 → MKE 09:06 +1DL 2999	7h 07m	94%	83%
United Details →	PHX 09:08 → DEN 12:00UA 597	1h 30m Denver	DEN 13:30 → MKE 17:04UA 4802 · flown by SkyWest	5h 56m	93%	82%
United Details →	PHX 06:00 → DEN 08:52UA 337	1h 05m Denver	DEN 09:57 → MKE 13:25UA 1836	5h 25m	94%	82%
Delta Details →	PHX 11:51 → MSP 16:56DL 2208	3h 09m Minneapolis	MSP 20:05 → MKE 21:28DL 4468 · flown by SkyWest	7h 37m	99%	81%
Southwest Details →	PHX 06:40 → LAS 07:50WN 3039	1h 15m Las Vegas	LAS 09:05 → MKE 14:35WN 4337	5h 55m	100%	81%
Tight connection: often missed
United Details →	PHX 14:45 → ORD 20:27UA 1686	53m Chicago	ORD 21:20 → MKE 22:29UA 5362 · flown by SkyWest	5h 44m	49%	33%
United Details →	PHX 11:12 → ORD 16:54UA 1748	51m Chicago	ORD 17:45 → MKE 18:48UA 5555 · flown by SkyWest	5h 36m	64%	31%
American Details →	PHX 15:15 → DFW 19:53AA 2113	1h 17m Dallas-Fort Worth	DFW 21:10 → MKE 23:34AA 1234	6h 19m	69%	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

LAS · 1h 15m · leaves 06:40 0%

DEN · 1h 15m · leaves 06:15 2%

ORD · 59m · leaves 05:14 10%

Afternoon and evening

ORD · 53m · leaves 14:45 51%

LAS · 1h 05m · leaves 16:00 55%

DEN · 55m · leaves 15:25 73%

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.


American AA 563 PHX 21:51 → MCO Southwest WN 4459 MCO 07:20 → MKE Connection details →	2h 20m	9h 19m	92%	90%
Frontier F9 1376 PHX 06:40 → DEN United UA 4802 DEN 13:30 → MKE Connection details →	3h 53m	8h 24m	99%	88%
Southwest WN 3259 PHX 05:15 → DEN United UA 1836 DEN 09:57 → MKE Connection details →	1h 57m	6h 10m	98%	85%

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