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 4% of the time at 6 am and 36% of the time at 5 pm.

Nonstops


Delta	DFW	BOS	3h 54m	77%	2.7%	863	Flying now
American	DFW	BOS	3h 47m	66%	3.4%	2,643	Flying now
JetBlue	DFW	BOS	3h 43m	59%	3.5%	200	Not flying now
Spirit	DFW	BOS	–	25%few flights	0.0%	4	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 (Boston is 1 h ahead of Dallas-Fort Worth). Layovers up to 4 hours. Pick a connection for the details.


United Details →	DFW 05:10 → IAH 06:22UA 2260	1h 08m Houston	IAH 07:30 → BOS 12:28UA 1977	6h 18m	96%	88%
United Details →	DFW 18:45 → DEN 20:15UA 1602	3h 44m Denver	DEN 23:59 → BOS 05:58 +1UA 2656	10h 13m	97%	87%
American Details →	DFW 05:00 → CLT 08:38AA 575	2h 40m Charlotte	CLT 11:18 → BOS 13:33AA 1611	7h 33m	99%	87%
United Details →	DFW 05:45 → DEN 06:53UA 773	2h 47m Denver	DEN 09:40 → BOS 15:44UA 1232	8h 59m	100%	84%
American Details →	DFW 06:10 → PHX 06:49AA 1818	1h 53m Phoenix	PHX 08:42 → BOS 16:55AA 1564	9h 45m	100%	81%
Delta Details →	DFW 05:30 → ATL 08:42DL 401	1h 18m Atlanta	ATL 10:00 → BOS 12:44DL 855	6h 14m	97%	80%
United Details →	DFW 06:01 → EWR 10:30UA 1847	1h 29m Newark	EWR 11:59 → BOS 13:16UA 1669	6h 15m	96%	79%
American Details →	DFW 19:14 → PHX 19:43AA 818	2h 02m Phoenix	PHX 21:45 → BOS 05:45 +1AA 2701	9h 31m	93%	79%
Tight connection: often missed
American Details →	DFW 07:18 → ORD 09:50AA 1106	1h 00m Chicago	ORD 10:50 → BOS 14:20AA 1563	6h 10m	74%	41%
American Details →	DFW 16:34 → MIA 20:35AA 3308	1h 10m Miami	MIA 21:45 → BOS 00:59 +1AA 1054	7h 25m	65%	37%
American Details →	DFW 15:30 → ORD 18:16AA 2740	1h 04m Chicago	ORD 19:20 → BOS 22:53AA 3107	6h 27m	51%	28%

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 18m · leaves 05:30 3%

IAH · 1h 08m · leaves 05:10 4%

DCA · 1h 11m · leaves 05:02 7%

Afternoon and evening

ORD · 1h 04m · leaves 15:30 49%

PHL · 53m · leaves 12:14 52%

LGA · 54m · leaves 12:30 62%

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 2147 DFW 05:18 → DEN United UA 1232 DEN 09:40 → BOS Connection details →	3h 09m	9h 26m	99%	84%
United UA 773 DFW 05:45 → DEN Southwest WN 3690 DEN 10:00 → BOS Connection details →	3h 07m	9h 20m	100%	82%
American AA 1618 DFW 05:02 → DCA Delta DL 5592 DCA 12:55 → BOS Connection details →	3h 52m	8h 37m	99%	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