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 8% of the time at 9 am and 2 times in 5 at 7 pm.

Nonstops


United	DEN	MKE	2h 26m	81%	0.1%	1,021	Flying now
Southwest	DEN	MKE	2h 20m	74%	0.6%	1,246	Flying now
Frontier	DEN	MKE	2h 26m	90%	0.0%	52	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 1 h ahead of Denver). Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	DEN 00:59 → DTW 05:48DL 1096	2h 47m Detroit	DTW 08:35 → MKE 08:51DL 3191	6h 52m	97%	89%
Delta Details →	DEN 00:40 → ATL 05:42DL 302	2h 23m Atlanta	ATL 08:05 → MKE 09:06DL 2999	7h 26m	99%	87%
Southwest Details →	DEN 05:55 → MDW 09:20WN 1598	55m Chicago	MDW 10:15 → MKE 11:00WN 1702	4h 05m	94%	84%
Delta Details →	DEN 05:45 → ATL 10:42DL 341	2h 11m Atlanta	ATL 12:53 → MKE 13:50DL 1246	7h 05m	98%	84%
Southwest Details →	DEN 05:45 → LAS 06:40WN 3106	2h 25m Las Vegas	LAS 09:05 → MKE 14:35WN 4337	7h 50m	100%	83%
United Details →	DEN 08:00 → ORD 11:44UA 2430	3h 52m Chicago	ORD 15:36 → MKE 16:42UA 5345 · flown by SkyWest	7h 42m	99%	81%
Delta Details →	DEN 12:12 → MSP 15:10DL 2877	3h 04m Minneapolis	MSP 18:14 → MKE 19:37DL 4464 · flown by SkyWest	6h 25m	98%	80%
Delta Details →	DEN 07:15 → ATL 12:12DL 431	1h 53m Atlanta	ATL 14:05 → MKE 15:07DL 2152	6h 52m	97%	77%
Tight connection: often missed
United Details →	DEN 16:29 → ORD 20:14UA 675	1h 06m Chicago	ORD 21:20 → MKE 22:29UA 5362 · flown by SkyWest	5h 00m	64%	43%
United Details →	DEN 15:01 → ORD 18:46UA 1023	59m Chicago	ORD 19:45 → MKE 20:56UA 4711 · flown by SkyWest	4h 55m	60%	40%
American Details →	DEN 12:34 → ORD 16:31AA 1744	50m Chicago	ORD 17:21 → MKE 18:23AA 6211 · flown by SkyWest	4h 49m	71%	38%

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 · 55m · leaves 05:55 6%

MSP · 1h 06m · leaves 06:00 8%

ORD · 1h 14m · leaves 07:05 8%

Afternoon and evening

ORD · 59m · leaves 15:01 40%

IAH · 47m · leaves 15:35 41%

MDW · 55m · leaves 17:35 77%

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 3420 DEN 07:50 → MSP Delta DL 2006 MSP 13:54 → MKE Connection details →	2h 59m	6h 18m	100%	82%
Southwest WN 1638 DEN 13:42 → MSP Delta DL 4468 MSP 20:05 → MKE Connection details →	3h 25m	6h 46m	98%	80%
Southwest WN 3973 DEN 10:10 → MSP Delta DL 4462 MSP 16:58 → MKE Connection details →	3h 48m	7h 09m	100%	80%

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