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 11 am and 31% of the time at 9 pm.

Nonstops


United	LAX	IAD	5h 03m	88%	0.6%	2,339	Flying now
American	LAX	IAD	4h 59m	77%	0.0%	116	Flying now
Alaska	LAX	IAD	5h 05m	89%few flights	0.0%	19	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 Los Angeles). Layovers up to 4 hours. Pick a connection for the details.


United Details →	LAX 22:35 → ORD 04:51UA 353	1h 39m Chicago	ORD 06:30 → IAD 09:24 +1UA 1689	7h 49m	94%	93%
United Details →	LAX 23:04 → MCO 07:03UA 1730	1h 52m Orlando	MCO 08:55 → IAD 11:14 +1UA 276	9h 10m	97%	92%
United Details →	LAX 23:30 → ORD 05:46UA 1962	2h 54m Chicago	ORD 08:40 → IAD 11:52 +1UA 2277	9h 22m	100%	92%
United Details →	LAX 18:45 → DEN 22:15UA 2610	1h 44m Denver	DEN 23:59 → IAD 05:27 +1UA 1924	7h 42m	98%	91%
Delta Details →	LAX 22:20 → DTW 05:43DL 407	3h 07m Detroit	DTW 08:50 → IAD 10:23 +1DL 2884	9h 05m	99%	87%
United Details →	LAX 08:09 → AUS 13:29UA 5445 · flown by SkyWest	3h 31m Austin	AUS 17:00 → IAD 21:19UA 376	10h 10m	98%	87%
United Details →	LAX 07:00 → DEN 10:29UA 703	3h 24m Denver	DEN 13:53 → IAD 19:22UA 347	9h 22m	99%	86%
United Details →	LAX 00:51 → IAH 06:12UA 491	1h 08m Houston	IAH 07:20 → IAD 11:28UA 1549	7h 37m	94%	85%
Tight connection: often missed
United Details →	LAX 12:15 → EWR 20:49UA 2227	1h 01m Newark	EWR 21:50 → IAD 23:19UA 1784	8h 04m	75%	54%
United Details →	LAX 18:45 → SFO 20:10UA 2681	1h 20m San Francisco	SFO 21:30 → IAD 05:53 +1UA 357	8h 08m	66%	49%
United Details →	LAX 20:10 → SFO 21:38UA 1195	57m San Francisco	SFO 22:35 → IAD 06:58 +1UA 2837	7h 48m	25%	17%

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

IAH · 1h 01m · leaves 05:45 4%

CLT · 1h 01m · leaves 22:35 22%

MSP · 1h 07m · leaves 00:30 24%

Afternoon and evening

ORD · 1h 00m · leaves 14:26 31%

CLT · 50m · leaves 13:58 32%

SFO · 57m · leaves 20:10 75%

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 2409 LAX 22:05 → MCO United UA 276 MCO 08:55 → IAD Connection details →	2h 55m	10h 09m	100%	95%
Delta DL 2311 LAX 17:05 → SLC United UA 726 SLC 23:59 → IAD Connection details →	4h 00m	10h 08m	99%	91%
Southwest WN 116 LAX 05:05 → PHX United UA 1873 PHX 08:50 → IAD Connection details →	2h 20m	8h 12m	100%	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