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 14% of the time at 9 am and 31% of the time at 5 pm.

Nonstops


Delta	ATL	BDL	2h 20m	80%	2.1%	2,214	Flying now
Frontier	ATL	BDL	2h 25m	76%	1.9%	104	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	ATL 09:25 → IAD 11:15UA 632	1h 25m Dulles	IAD 12:40 → BDL 14:06UA 632	4h 41m	96%	84%
Delta Details →	ATL 09:18 → DTW 11:10DL 1298	3h 17m Detroit	DTW 14:27 → BDL 16:13DL 2814	6h 55m	100%	83%
Delta Details →	ATL 07:25 → DTW 09:20DL 1646	1h 11m Detroit	DTW 10:31 → BDL 12:15DL 2163	4h 50m	95%	82%
Southwest Details →	ATL 07:00 → BWI 08:50WN 4364	1h 55m Baltimore	BWI 10:45 → BDL 12:05WN 427	5h 05m	97%	81%
American Details →	ATL 05:00 → CLT 06:25AA 5507 · flown by PSA	1h 05m Charlotte	CLT 07:30 → BDL 09:28AA 1449	4h 28m	87%	81%
American Details →	ATL 07:05 → PHL 09:15AA 1428	3h 36m Philadelphia	PHL 12:51 → BDL 14:11AA 6035 · flown by Piedmont	7h 06m	98%	80%
American Details →	ATL 06:00 → PHL 08:11AA 3270	49m Philadelphia	PHL 09:00 → BDL 10:22AA 5997 · flown by Piedmont	4h 22m	90%	80%
Southwest Details →	ATL 10:00 → MDW 11:00WN 224	2h 30m Chicago	MDW 13:30 → BDL 16:35WN 692	6h 35m	100%	79%
Tight connection: often missed
United Details →	ATL 14:41 → IAD 16:35UA 1831	52m Dulles	IAD 17:27 → BDL 18:57UA 4059 · flown by Mesa	4h 16m	69%	51%
JetBlue Details →	ATL 18:23 → JFK 21:00B6 520	1h 39m New York	JFK 22:39 → BDL 23:59B6 675	5h 36m	75%	43%
American Details →	ATL 14:10 → PHL 16:25AA 621	1h 20m Philadelphia	PHL 17:45 → BDL 19:06AA 5857 · flown by Piedmont	4h 56m	71%	43%

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 04m · leaves 05:30 2%

DTW · 1h 11m · leaves 07:25 5%

PHL · 49m · leaves 06:00 10%

Afternoon and evening

BWI · 1h 10m · leaves 19:50 36%

DFW · 1h 01m · leaves 16:16 57%

MDW · 55m · leaves 17:55 59%

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 212 ATL 07:40 → MCO JetBlue B6 2938 MCO 12:45 → BDL Connection details →	3h 35m	8h 00m	98%	91%
Delta DL 1324 ATL 07:43 → IAD United UA 632 IAD 12:40 → BDL Connection details →	3h 14m	6h 23m	98%	84%
Frontier F9 2510 ATL 05:30 → BWI Southwest WN 427 BWI 10:45 → BDL Connection details →	3h 19m	6h 35m	94%	81%

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