Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

No clear winner: American’s PWM → DCA flights land within a few points of 3 in 4 on time whatever the hour.

Nonstops


American	PWM	DCA	1h 54m	75%	3.7%	1,159	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	PWM 06:00 → ORD 08:00UA 723	2h 00m Chicago	ORD 10:00 → DCA 13:04UA 1381	7h 04m	100%	85%
Delta Details →	PWM 06:00 → ATL 08:45DL 1515	2h 15m Atlanta	ATL 11:00 → DCA 12:42DL 737	6h 42m	99%	78%
Delta Details →	PWM 06:00 → LGA 07:30DL 5799 · flown by Republic	1h 20m New York	LGA 08:50 → DCA 10:15DL 5742 · flown by Republic	4h 15m	100%	76%
American Details →	PWM 07:16 → CLT 09:46AA 2966	1h 28m Charlotte	CLT 11:14 → DCA 12:59AA 5527 · flown by PSA	5h 42m	97%	75%
Delta Details →	PWM 06:20 → JFK 07:44DL 5277 · flown by Endeavor	51m New York	JFK 08:35 → DCA 10:02DL 5750 · flown by Republic	3h 42m	87%	73%
United Details →	PWM 06:00 → EWR 07:33UA 3604 · flown by Republic	1h 27m Newark	EWR 09:00 → DCA 10:23UA 4444 · flown by GoJet	4h 23m	97%	69%
American Details →	PWM 13:25 → LGA 15:00AA 2931	2h 20m New York	LGA 17:20 → DCA 18:58AA 4773 · flown by Republic	5h 33m	92%	64%
Delta Details →	PWM 16:45 → DTW 18:54DL 1821	2h 30m Detroit	DTW 21:24 → DCA 22:59DL 2073	6h 14m	93%	62%
Tight connection: often missed
Delta Details →	PWM 13:55 → ATL 16:50DL 2479	1h 05m Atlanta	ATL 17:55 → DCA 19:48DL 832	5h 53m	72%	41%

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

LGA · 1h 20m · leaves 06:00 0%

ORD · 1h 00m · leaves 06:00 1%

JFK · 51m · leaves 06:20 13%

Afternoon and evening

CLT · 1h 20m · leaves 14:25 15%

EWR · 1h 10m · leaves 15:16 16%

ATL · 1h 05m · leaves 13:55 28%

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.


Delta DL 5799 PWM 06:00 → LGA American AA 4654 LGA 10:47 → DCA Connection details →	3h 17m	6h 17m	100%	78%
Delta DL 1515 PWM 06:00 → ATL American AA 3976 ATL 10:57 → DCA Connection details →	2h 12m	6h 55m	98%	70%
American AA 4391 PWM 06:09 → ORD United UA 1381 ORD 10:00 → DCA Connection details →	1h 40m	6h 55m	80%	66%

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