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 70-minute layover misses 3% of the time at 8 am and 27% of the time at 8 pm.

Nonstops


American	BOS	PHX	5h 47m	81%	1.6%	1,315	Flying now
Delta	BOS	PHX	5h 50m	71%	1.6%	429	Flying now
JetBlue	BOS	PHX	6h 01m	74%	1.8%	273	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Phoenix on time. Total trip = scheduled departure to arrival, layover included (Phoenix is 3 h behind Boston). Layovers up to 4 hours. Pick a connection for the details.


United Details →	BOS 06:21 → LAX 09:35UA 360	3h 30m Los Angeles	LAX 13:05 → PHX 14:42UA 5450 · flown by SkyWest	11h 21m	100%	97%
Southwest Details →	BOS 05:25 → MDW 07:00WN 3239	1h 40m Chicago	MDW 08:40 → PHX 10:20WN 3016	7h 55m	97%	90%
United Details →	BOS 06:05 → EWR 07:29UA 1833	3h 55m Newark	EWR 11:24 → PHX 13:39UA 370	10h 34m	100%	89%
American Details →	BOS 06:05 → CLT 08:30AA 418	1h 10m Charlotte	CLT 09:40 → PHX 11:04AA 1986	7h 58m	97%	87%
United Details →	BOS 06:00 → ORD 07:58UA 1414	1h 04m Chicago	ORD 09:02 → PHX 11:03UA 2225	8h 03m	95%	87%
Delta Details →	BOS 10:55 → LAX 14:07DL 2004	3h 34m Los Angeles	LAX 17:41 → PHX 19:15DL 4077 · flown by SkyWest	11h 20m	99%	86%
Delta Details →	BOS 11:15 → SLC 14:24DL 464	3h 01m Salt Lake City	SLC 17:25 → PHX 18:07DL 1451	9h 52m	96%	85%
United Details →	BOS 08:15 → ORD 10:12UA 1834	3h 18m Chicago	ORD 13:30 → PHX 15:19UA 455	10h 04m	100%	85%
Tight connection: often missed
Delta Details →	BOS 11:15 → SLC 14:24DL 464	56m Salt Lake City	SLC 15:20 → PHX 16:04DL 1738	7h 51m	75%	63%
American Details →	BOS 11:20 → CLT 13:45AA 3161	47m Charlotte	CLT 14:32 → PHX 15:56AA 3220	7h 31m	70%	41%
American Details →	BOS 17:38 → ORD 19:59AA 1592	55m Chicago	ORD 20:54 → PHX 22:36AA 332	7h 58m	33%	15%

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

MSP · 1h 20m · leaves 05:55 3%

CLT · 1h 10m · leaves 06:05 3%

DTW · 1h 06m · leaves 05:30 5%

Afternoon and evening

STL · 50m · leaves 18:50 73%

BNA · 50m · leaves 20:00 82%

DEN · 50m · leaves 17:30 86%

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.


JetBlue B6 287 BOS 06:00 → LAX United UA 5450 LAX 13:05 → PHX Connection details →	3h 51m	11h 42m	99%	95%
Delta DL 2004 BOS 10:55 → LAX United UA 5457 LAX 16:22 → PHX Connection details →	2h 15m	10h 04m	96%	94%
Southwest WN 4156 BOS 06:25 → DEN United UA 1686 DEN 11:25 → PHX Connection details →	2h 35m	9h 00m	100%	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