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

No clear winner: Delta’s DTW → CHA flights land within a few points of 77% on time whatever the hour.

Nonstops (seasonal or thin)


Delta	DTW	CHA	1h 49m	77%	0.5%	616	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Chattanooga on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	DTW 06:17 → ATL 08:12DL 1611	3h 21m Atlanta	ATL 11:33 → CHA 12:23DL 1737	6h 06m	99%	87%
Delta Details →	DTW 07:25 → ATL 09:26DL 965	3h 48m Atlanta	ATL 13:14 → CHA 14:05DL 3141	6h 40m	99%	83%
Delta Details →	DTW 05:17 → ATL 07:10DL 2375	1h 10m Atlanta	ATL 08:20 → CHA 09:19DL 5309 · flown by Endeavor	4h 02m	94%	82%
United Details →	DTW 07:05 → ORD 07:42UA 5553 · flown by SkyWest	2h 43m Chicago	ORD 10:25 → CHA 13:16UA 4543 · flown by GoJet	6h 11m	95%	82%
American Details →	DTW 05:37 → DFW 07:32AA 1108	1h 08m Dallas-Fort Worth	DFW 08:40 → CHA 11:47AA 3451 · flown by Envoy	6h 10m	90%	79%
American Details →	DTW 07:00 → CLT 08:54AA 1439	2h 31m Charlotte	CLT 11:25 → CHA 12:54AA 6127 · flown by Piedmont	5h 54m	98%	79%
American Details →	DTW 16:17 → CLT 18:17AA 1770	2h 07m Charlotte	CLT 20:24 → CHA 21:52AA 5787 · flown by Piedmont	5h 35m	94%	74%
Delta Details →	DTW 09:25 → ATL 11:25DL 2777	3h 01m Atlanta	ATL 14:26 → CHA 15:20DL 3057	5h 55m	98%	74%
Tight connection: often missed
Delta Details →	DTW 18:09 → ATL 20:19DL 2053	51m Atlanta	ATL 21:10 → CHA 22:11DL 5368 · flown by Endeavor	4h 05m	65%	31%

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

ATL · 1h 10m · leaves 05:17 6%

DFW · 1h 08m · leaves 05:37 10%

Afternoon and evening

CLT · 1h 08m · leaves 13:41 19%

ATL · 51m · leaves 18:09 35%

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.


Frontier F9 1263 DTW 06:10 → ATL Delta DL 1737 ATL 11:33 → CHA Connection details →	3h 02m	6h 13m	96%	84%
American AA 6465 DTW 06:45 → ORD United UA 4543 ORD 10:25 → CHA Connection details →	2h 55m	6h 31m	96%	81%
Delta DL 2481 DTW 07:05 → CLT American AA 6127 CLT 11:25 → CHA Connection details →	2h 33m	5h 49m	96%	76%

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