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 GRR → MSP flights land within a few points of 4 in 5 on time whatever the hour.

Nonstops


Delta	GRR	MSP	1h 43m	81%	1.3%	1,366	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Minneapolis on time. Total trip = scheduled departure to arrival, layover included (Minneapolis is 1 h behind Grand Rapids). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	GRR 06:30 → MDW 06:40WN 1894	1h 00m Chicago	MDW 07:40 → MSP 09:10WN 1243	3h 40m	100%	96%
United Details →	GRR 06:00 → ORD 06:17UA 4458 · flown by GoJet	2h 33m Chicago	ORD 08:50 → MSP 10:36UA 2805	5h 36m	100%	87%
Delta Details →	GRR 06:10 → ATL 08:14DL 2453	1h 41m Atlanta	ATL 09:55 → MSP 11:30DL 2090	6h 20m	97%	86%
American Details →	GRR 06:00 → ORD 06:07AA 2502	2h 15m Chicago	ORD 08:22 → MSP 10:06AA 4162 · flown by Envoy	5h 08m	93%	83%
Delta Details →	GRR 08:15 → DTW 09:19DL 3885 · flown by SkyWest	3h 01m Detroit	DTW 12:20 → MSP 13:14DL 2697	5h 59m	100%	83%
Delta Details →	GRR 07:53 → ATL 09:56DL 2161	2h 25m Atlanta	ATL 12:21 → MSP 13:57DL 2901	7h 04m	95%	82%
Delta Details →	GRR 05:30 → DTW 06:30DL 4885 · flown by Endeavor	2h 30m Detroit	DTW 09:00 → MSP 09:55DL 2258	5h 25m	95%	80%
American Details →	GRR 10:10 → ORD 10:32AA 6391 · flown by SkyWest	1h 13m Chicago	ORD 11:45 → MSP 13:27AA 3719 · flown by Envoy	4h 17m	89%	79%
Tight connection: often missed
United Details →	GRR 08:00 → DEN 08:54UA 2648	46m Denver	DEN 09:40 → MSP 12:40UA 397	5h 40m	65%	57%
American Details →	GRR 17:34 → CLT 19:39AA 1891	50m Charlotte	CLT 20:29 → MSP 22:13AA 2176	5h 37m	52%	38%
American Details →	GRR 13:14 → DFW 15:00AA 3167	59m Dallas-Fort Worth	DFW 15:59 → MSP 18:23AA 2148	6h 09m	72%	36%

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 · 1h 00m · leaves 06:30 0%

ORD · 1h 15m · leaves 10:10 10%

DEN · 46m · leaves 08:00 35%

Afternoon and evening

ORD · 1h 09m · leaves 18:25 42%

DTW · 47m · leaves 14:35 46%

CLT · 50m · leaves 17:34 48%

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 1894 GRR 06:30 → MDW Delta DL 5469 MDW 09:54 → MSP Connection details →	3h 14m	6h 05m	100%	89%
United UA 4458 GRR 06:00 → ORD American AA 4162 ORD 08:22 → MSP Connection details →	2h 05m	5h 08m	96%	86%
American AA 2502 GRR 06:00 → ORD United UA 2805 ORD 08:50 → MSP Connection details →	2h 43m	5h 36m	93%	82%

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