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 7% of the time at 8 am and 63% of the time at 7 pm.

Nonstops


Delta	BOS	DTW	2h 16m	80%	2.2%	1,715	Flying now
JetBlue	BOS	DTW	2h 12m	72%	3.4%	734	Flying now
Spirit	BOS	DTW	2h 05m	86%	0.0%	134	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	BOS 07:15 → MSP 09:30DL 1138	3h 25m Minneapolis	MSP 12:55 → DTW 15:38DL 1519	8h 23m	99%	88%
United Details →	BOS 05:45 → IAD 07:23UA 1734	1h 12m Dulles	IAD 08:35 → DTW 10:14UA 6137 · flown by Mesa	4h 29m	98%	85%
Delta Details →	BOS 08:09 → CMH 10:27DL 5654 · flown by Republic	1h 41m Columbus	CMH 12:08 → DTW 13:20DL 5810 · flown by Republic	5h 10m	96%	84%
Delta Details →	BOS 08:55 → RIC 10:56DL 5622 · flown by Republic	1h 40m Richmond	RIC 12:36 → DTW 14:21DL 3166	5h 26m	95%	84%
Delta Details →	BOS 05:30 → ATL 08:15DL 2242	2h 45m Atlanta	ATL 11:00 → DTW 12:55DL 1240	7h 26m	100%	84%
American Details →	BOS 05:10 → ORD 07:04AA 3324	2h 56m Chicago	ORD 10:00 → DTW 12:32AA 3498 · flown by Envoy	7h 24m	99%	83%
Delta Details →	BOS 06:00 → LGA 07:20DL 5836 · flown by Republic	2h 05m New York	LGA 09:25 → DTW 11:25DL 1078	5h 24m	97%	83%
Delta Details →	BOS 07:25 → DCA 09:18DL 5692 · flown by Republic	3h 11m Washington	DCA 12:29 → DTW 14:04DL 2476	6h 39m	100%	83%
Tight connection: often missed
Delta Details →	BOS 17:56 → ATL 21:01DL 2464	52m Atlanta	ATL 21:53 → DTW 23:57DL 651	6h 01m	70%	54%
Delta Details →	BOS 17:05 → JFK 18:43DL 5814 · flown by Republic	46m New York	JFK 19:29 → DTW 21:56DL 1253	4h 51m	50%	29%
United Details →	BOS 17:00 → ORD 19:00UA 2040	47m Chicago	ORD 19:47 → DTW 22:19UA 2426	5h 19m	37%	22%

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

LGA · 1h 01m · leaves 07:00 2%

IAD · 1h 12m · leaves 05:45 2%

ATL · 1h 03m · leaves 05:30 3%

Afternoon and evening

EWR · 50m · leaves 19:00 38%

JFK · 46m · leaves 17:05 50%

ORD · 47m · leaves 17:00 63%

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 752 BOS 05:50 → STL Delta DL 2868 STL 10:20 → DTW Connection details →	2h 35m	7h 05m	100%	91%
American AA 3470 BOS 12:40 → CMH Delta DL 3782 CMH 18:47 → DTW Connection details →	3h 51m	7h 22m	100%	90%
JetBlue B6 1281 BOS 07:00 → RIC Delta DL 3166 RIC 12:36 → DTW Connection details →	3h 48m	7h 21m	99%	87%

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