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 75-minute layover misses 5% of the time at 11 am and 28% of the time at 12 am.

Nonstops


United	PHX	IAD	4h 21m	91%	0.8%	731	Flying now
Southwest	PHX	IAD	4h 15m	75%	0.3%	306	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	PHX 18:54 → LAX 20:31UA 4722 · flown by SkyWest	59m Los Angeles	LAX 21:30 → IAD 05:36 +1UA 2632	7h 42m	96%	90%
United Details →	PHX 06:00 → LAX 07:37UA 5849 · flown by SkyWest	3h 02m Los Angeles	LAX 10:39 → IAD 18:48UA 2667	9h 48m	99%	89%
United Details →	PHX 18:59 → DEN 21:54UA 1745	2h 05m Denver	DEN 23:59 → IAD 05:27 +1UA 1924	7h 28m	92%	86%
Delta Details →	PHX 23:04 → DTW 05:46DL 1566	3h 04m Detroit	DTW 08:50 → IAD 10:23 +1DL 2884	8h 21m	98%	86%
Delta Details →	PHX 23:59 → ATL 06:39DL 929	3h 11m Atlanta	ATL 09:50 → IAD 11:39 +1DL 1444	8h 39m	99%	84%
United Details →	PHX 11:12 → SFO 13:15UA 2619	3h 19m San Francisco	SFO 16:34 → IAD 00:55 +1UA 1453	10h 43m	98%	84%
United Details →	PHX 10:06 → LAX 11:31UA 2487	1h 12m Los Angeles	LAX 12:43 → IAD 20:48UA 1635	7h 42m	96%	83%
Delta Details →	PHX 22:35 → JFK 06:27DL 548	3h 49m New York	JFK 10:16 → IAD 11:48 +1DL 5835 · flown by Republic	10h 13m	99%	83%
Tight connection: often missed
United Details →	PHX 13:16 → SFO 15:19UA 1427	1h 15m San Francisco	SFO 16:34 → IAD 00:55 +1UA 1453	8h 39m	69%	60%
Frontier Details →	PHX 22:27 → LAS 23:38F9 4113	1h 08m Las Vegas	LAS 00:46 → IAD 08:20 +1F9 4278	6h 54m	72%	47%
United Details →	PHX 19:47 → SFO 21:50UA 2837	1h 15m San Francisco	SFO 23:05 → IAD 07:30 +1UA 1083	8h 43m	39%	31%

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

LAX · 1h 12m · leaves 10:06 4%

ATL · 1h 04m · leaves 23:59 11%

Afternoon and evening

ORD · 1h 13m · leaves 14:45 24%

LAS · 1h 08m · leaves 22:27 28%

SFO · 1h 15m · leaves 13:16 31%

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 3231 PHX 19:15 → IND United UA 3997 IND 05:35 → IAD Connection details →	3h 55m	9h 04m	98%	94%
American AA 563 PHX 21:51 → MCO United UA 276 MCO 08:55 → IAD Connection details →	3h 55m	10h 23m	98%	93%
Delta DL 3894 PHX 16:02 → LAX United UA 2632 LAX 21:30 → IAD Connection details →	3h 56m	10h 34m	98%	91%

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