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 6% of the time at 10 am and 42% of the time at 5 pm.

Nonstops


Delta	ATL	BOS	2h 41m	76%	1.8%	3,693	Flying now
JetBlue	ATL	BOS	2h 35m	71%	3.2%	844	Flying now
Frontier	ATL	BOS	2h 47m	68%	2.6%	427	Flying now
Spirit	ATL	BOS	2h 35m	62%few flights	0.0%	13	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	ATL 05:30 → IAD 07:20UA 641	1h 15m Dulles	IAD 08:35 → BOS 10:20UA 641	4h 50m	98%	88%
American Details →	ATL 05:00 → CLT 06:25AA 5507 · flown by PSA	2h 30m Charlotte	CLT 08:55 → BOS 11:08AA 1533	6h 08m	95%	88%
Delta Details →	ATL 07:31 → ORF 09:09DL 1336	2h 46m Norfolk	ORF 11:55 → BOS 13:48DL 5809 · flown by Republic	6h 17m	100%	87%
Delta Details →	ATL 07:30 → IND 09:00DL 3125	2h 05m Indianapolis	IND 11:05 → BOS 13:32DL 5628 · flown by Republic	6h 02m	99%	86%
Delta Details →	ATL 07:25 → CLE 09:10DL 1500	2h 05m Cleveland	CLE 11:15 → BOS 13:14DL 5674 · flown by Republic	5h 49m	97%	84%
American Details →	ATL 06:24 → CLT 07:55AA 5176 · flown by PSA	3h 23m Charlotte	CLT 11:18 → BOS 13:33AA 1611	7h 09m	97%	83%
Southwest Details →	ATL 06:50 → STL 07:30WN 3937	2h 35m St Louis	STL 10:05 → BOS 13:40WN 3891	6h 50m	100%	82%
Delta Details →	ATL 07:30 → PIT 09:11DL 1380	1h 47m Pittsburgh	PIT 10:58 → BOS 12:50DL 5678 · flown by Republic	5h 20m	98%	81%
Tight connection: often missed
Delta Details →	ATL 08:55 → MIA 10:57DL 1510	47m Miami	MIA 11:44 → BOS 15:17DL 1399	6h 19m	67%	48%
United Details →	ATL 14:41 → IAD 16:35UA 1831	50m Dulles	IAD 17:25 → BOS 19:14UA 688	4h 33m	68%	41%
American Details →	ATL 13:39 → DFW 15:10AA 1358	54m Dallas-Fort Worth	DFW 16:04 → BOS 20:50AA 1048	7h 11m	66%	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

IAD · 1h 15m · leaves 05:30 2%

MSP · 1h 16m · leaves 09:55 4%

DFW · 1h 17m · leaves 06:01 4%

Afternoon and evening

CLT · 1h 11m · leaves 15:06 40%

DFW · 52m · leaves 15:02 41%

DCA · 1h 00m · leaves 15:30 42%

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 3937 ATL 06:50 → STL American AA 3814 STL 09:39 → BOS Connection details →	2h 09m	6h 34m	100%	87%
Delta DL 3144 ATL 07:38 → CLT American AA 1611 CLT 11:18 → BOS Connection details →	2h 25m	5h 55m	96%	85%
Frontier F9 1838 ATL 07:00 → CLE Delta DL 5674 CLE 11:15 → BOS Connection details →	2h 22m	6h 14m	94%	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