tailodds FORECAST
Tickets
Any day
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 82% on time.

Nonstops (seasonal or thin)

Nonstop details →
United ATW DEN 3h 05m 82% 1.1% 364 Flying now
Allegiant ATW DEN 2h 31m 74% 0.0% 47 Flying now

Best connections, any airlines

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Denver on time. Total trip = scheduled departure to arrival, layover included (Denver is 1 h behind Appleton). Layovers up to 4 hours. Pick a connection for the details.
UnitedDetails → ATW 08:15 → ORD 09:45UA 4190 · flown by GoJet 1h 09m Chicago ORD 10:54 → DEN 12:45UA 581 5h 30m 93% 90%
American + Unitedtwo ticketsDetails → ATW 05:00 → ORD 06:14AA 3763 · flown by Envoy 2h 26m Chicago ORD 08:40 → DEN 10:31UA 526 6h 31m 96% 87%
Delta + Unitedtwo ticketsDetails → ATW 05:31 → ATL 08:43DL 1436 2h 27m Atlanta ATL 11:10 → DEN 12:28UA 1327 7h 57m 93% 83%
Delta + Frontiertwo ticketsDetails → ATW 07:00 → DTW 09:25DL 4176 · flown by SkyWest 3h 54m Detroit DTW 13:19 → DEN 14:35F9 3565 8h 35m 97% 81%
American + Unitedtwo ticketsDetails → ATW 06:00 → DFW 08:49AA 3673 · flown by Envoy 2h 46m Dallas-Fort Worth DFW 11:35 → DEN 12:45UA 2049 7h 45m 97% 81%
United + Americantwo ticketsDetails → ATW 06:20 → ORD 07:51UA 4639 · flown by SkyWest 2h 09m Chicago ORD 10:00 → DEN 11:44AA 1744 6h 24m 92% 77%
DeltaDetails → ATW 06:00 → MSP 07:20DL 4995 · flown by Endeavor 3h 40m Minneapolis MSP 11:00 → DEN 12:10DL 2927 7h 10m 94% 74%
UnitedDetails → ATW 10:37 → ORD 11:59UA 4637 · flown by SkyWest 2h 34m Chicago ORD 14:33 → DEN 16:31UA 2803 6h 54m 95% 70%
Tight connection: often missed
UnitedDetails → ATW 10:37 → ORD 11:59UA 4637 · flown by SkyWest 57m Chicago ORD 12:56 → DEN 14:46UA 1150 5h 09m 63% 53%
UnitedDetails → ATW 17:29 → ORD 18:59UA 4633 · flown by SkyWest 1h 01m Chicago ORD 20:00 → DEN 22:01UA 767 5h 32m 61% 40%
UnitedDetails → ATW 15:44 → ORD 17:05UA 4391 · flown by GoJet 1h 12m Chicago ORD 18:17 → DEN 20:22UA 1974 5h 38m 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
ORD · 1h 09m · leaves 08:15 7%
ATL · 1h 07m · leaves 05:31 15%
Afternoon and evening
DFW · 48m · leaves 12:39 23%
CLT · 1h 04m · leaves 14:03 23%
ORD · 1h 01m · leaves 17:29 39%

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