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 12% of the time at 9 am and 30% of the time at 7 pm.

Nonstops (seasonal or thin)


Southwest	BWI	GRR	1h 45m	75%	1.6%	440	Flying now
Delta	BWI	GRR	–	100%few flights	0.0%	1	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	BWI 06:15 → ORD 07:30UA 709	1h 20m Chicago	ORD 08:50 → GRR 11:08UA 5668 · flown by SkyWest	4h 53m	97%	91%
Delta Details →	BWI 12:32 → DTW 14:08DL 1546	3h 52m Detroit	DTW 18:00 → GRR 19:01DL 5800 · flown by Republic	6h 29m	99%	91%
Southwest Details →	BWI 06:10 → MDW 07:10WN 995	3h 05m Chicago	MDW 10:15 → GRR 12:05WN 2779	5h 55m	98%	88%
American Details →	BWI 05:02 → CLT 06:26AA 1708	2h 33m Charlotte	CLT 08:59 → GRR 10:52AA 1890	5h 50m	99%	85%
Delta Details →	BWI 05:40 → ATL 07:31DL 2950	2h 19m Atlanta	ATL 09:50 → GRR 11:46DL 2547	6h 06m	99%	82%
United Details →	BWI 08:16 → ORD 09:30UA 2749	1h 07m Chicago	ORD 10:37 → GRR 12:50UA 1297	4h 34m	91%	81%
Delta Details →	BWI 10:33 → ATL 12:24DL 1592	2h 55m Atlanta	ATL 15:19 → GRR 17:14DL 2058	6h 42m	99%	80%
Delta Details →	BWI 11:35 → MSP 13:16DL 2357	2h 46m Minneapolis	MSP 16:02 → GRR 18:28DL 1555	6h 53m	99%	78%
Tight connection: often missed
Delta Details →	BWI 17:32 → DTW 19:14DL 2480	46m Detroit	DTW 20:00 → GRR 21:00DL 4081 · flown by SkyWest	3h 28m	71%	55%
Delta Details →	BWI 17:00 → ATL 19:08DL 2799	46m Atlanta	ATL 19:54 → GRR 21:51DL 2210	4h 51m	70%	55%
American Details →	BWI 20:00 → ORD 21:32AA 4717 · flown by Republic	1h 00m Chicago	ORD 22:32 → GRR 00:36 +1AA 1096	4h 36m	68%	23%

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

DTW · 1h 10m · leaves 06:08 4%

CLT · 1h 06m · leaves 06:15 5%

ATL · 54m · leaves 07:00 12%

Afternoon and evening

DTW · 46m · leaves 17:32 29%

ATL · 46m · leaves 17:00 30%

ORD · 58m · leaves 20:00 33%

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 3889 BWI 06:03 → ORD United UA 1297 ORD 10:37 → GRR Connection details →	3h 07m	6h 47m	96%	85%
United UA 2749 BWI 08:16 → ORD American AA 3553 ORD 11:56 → GRR Connection details →	2h 26m	5h 49m	95%	85%
American AA 4659 BWI 05:44 → ORD United UA 5668 ORD 08:50 → GRR Connection details →	1h 38m	5h 24m	91%	83%

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