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 8 am and barely half the time at 7 pm.

Nonstops (seasonal or thin)


American	GRR	DCA	1h 50m	69%	3.6%	729	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Southwest Details →	GRR 06:30 → MDW 06:40WN 1894	1h 35m Chicago	MDW 08:15 → DCA 11:10WN 2569	4h 40m	100%	91%
United Details →	GRR 06:00 → ORD 06:17UA 4458 · flown by GoJet	3h 43m Chicago	ORD 10:00 → DCA 13:04UA 1381	7h 04m	100%	85%
Delta Details →	GRR 07:00 → MSP 07:33DL 2913	2h 53m Minneapolis	MSP 10:26 → DCA 13:48DL 2983	6h 49m	98%	81%
Delta Details →	GRR 05:30 → DTW 06:30DL 4885 · flown by Endeavor	3h 35m Detroit	DTW 10:05 → DCA 11:34DL 2476	6h 04m	96%	80%
Delta Details →	GRR 06:10 → ATL 08:14DL 2453	2h 46m Atlanta	ATL 11:00 → DCA 12:42DL 737	6h 32m	99%	78%
American Details →	GRR 06:01 → CLT 07:57AA 3230	3h 17m Charlotte	CLT 11:14 → DCA 12:59AA 5527 · flown by PSA	6h 57m	98%	76%
United Details →	GRR 05:15 → ORD 05:33UA 5615 · flown by SkyWest	2h 27m Chicago	ORD 08:00 → DCA 11:01UA 382	5h 46m	93%	75%
Delta Details →	GRR 11:34 → MSP 12:14DL 3990 · flown by SkyWest	2h 24m Minneapolis	MSP 14:38 → DCA 18:09DL 2963	6h 35m	97%	72%
Tight connection: often missed
United Details →	GRR 13:56 → ORD 14:05UA 2138	55m Chicago	ORD 15:00 → DCA 18:12UA 1941	4h 16m	67%	42%
American Details →	GRR 17:34 → CLT 19:39AA 1891	1h 10m Charlotte	CLT 20:49 → DCA 22:20AA 527	4h 46m	67%	37%
American Details →	GRR 17:24 → DFW 19:14AA 310	46m Dallas-Fort Worth	DFW 20:00 → DCA 23:59AA 2077	6h 35m	46%	27%

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 06m · leaves 06:10 8%

LGA · 46m · leaves 06:00 9%

EWR · 1h 00m · leaves 06:05 12%

Afternoon and evening

CLT · 1h 10m · leaves 17:34 33%

DFW · 46m · leaves 17:24 54%

ORD · 57m · leaves 18:25 55%

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 2502 GRR 06:00 → ORD United UA 1381 ORD 10:00 → DCA Connection details →	3h 53m	7h 04m	97%	82%
Delta DL 5806 GRR 06:00 → LGA American AA 4654 LGA 10:47 → DCA Connection details →	2h 43m	6h 17m	100%	78%
Delta DL 2453 GRR 06:10 → ATL American AA 3976 ATL 10:57 → DCA Connection details →	2h 43m	6h 45m	98%	70%

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