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 3% of the time at 7 am and 38% of the time at 8 pm.

Nonstops


Delta	BOS	CHS	2h 47m	81%	2.7%	478	Flying now
JetBlue	BOS	CHS	2h 32m	77%	2.0%	662	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	BOS 05:30 → ATL 08:15DL 2242	2h 31m Atlanta	ATL 10:46 → CHS 12:00DL 3107	6h 30m	100%	90%
United Details →	BOS 05:45 → IAD 07:23UA 1734	1h 02m Dulles	IAD 08:25 → CHS 10:11UA 1108	4h 26m	97%	89%
United Details →	BOS 06:00 → ORD 07:58UA 1414	2h 37m Chicago	ORD 10:35 → CHS 14:06UA 3646 · flown by Republic	8h 06m	100%	89%
Southwest Details →	BOS 05:25 → MDW 07:00WN 3239	1h 05m Chicago	MDW 08:05 → CHS 11:25WN 356	6h 00m	91%	87%
United Details →	BOS 09:25 → IAD 11:07UA 2098	1h 28m Dulles	IAD 12:35 → CHS 14:27UA 3487 · flown by Republic	5h 02m	96%	84%
Southwest Details →	BOS 05:30 → BWI 07:05WN 727	1h 10m Baltimore	BWI 08:15 → CHS 10:02WN 898	4h 33m	95%	84%
Delta Details →	BOS 05:30 → DTW 07:39DL 1019	2h 26m Detroit	DTW 10:05 → CHS 12:20DL 5431 · flown by Endeavor	6h 50m	98%	83%
American Details →	BOS 05:10 → ORD 07:04AA 3324	1h 26m Chicago	ORD 08:30 → CHS 11:54AA 2452	6h 44m	96%	83%
Tight connection: often missed
Delta Details →	BOS 19:15 → ATL 22:19DL 973	51m Atlanta	ATL 23:10 → CHS 00:36 +1DL 2850	5h 11m	73%	57%
Delta Details →	BOS 17:15 → DTW 19:39DL 1432	52m Detroit	DTW 20:31 → CHS 22:44DL 5433 · flown by Endeavor	5h 32m	62%	37%
American Details →	BOS 17:23 → DCA 19:14AA 1557	58m Washington	DCA 20:12 → CHS 21:54AA 1278	4h 31m	50%	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

IAD · 1h 02m · leaves 05:45 3%

JFK · 1h 18m · leaves 05:15 3%

PHL · 1h 18m · leaves 06:00 4%

Afternoon and evening

DTW · 52m · leaves 17:15 38%

BWI · 1h 05m · leaves 17:20 44%

DCA · 58m · leaves 17:23 50%

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 3085 BOS 06:00 → ATL Delta DL 2179 ATL 12:29 → CHS Connection details →	3h 23m	7h 41m	99%	80%
American AA 1509 BOS 07:00 → ORD United UA 3646 ORD 10:35 → CHS Connection details →	1h 34m	7h 06m	87%	80%
JetBlue B6 917 BOS 05:15 → JFK Delta DL 5015 JFK 09:40 → CHS Connection details →	3h 12m	6h 49m	100%	79%

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