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 8% of the time at 9 am and 29% of the time at 5 pm.

Nonstops (seasonal or thin)


Delta	ATL	PWM	2h 37m	77%	1.1%	642	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	ATL 05:30 → IAD 07:20UA 641	1h 00m Dulles	IAD 08:20 → PWM 10:07UA 3548 · flown by Republic	4h 37m	96%	92%
United Details →	ATL 06:07 → EWR 08:25UA 299	3h 34m Newark	EWR 11:59 → PWM 13:25UA 3685 · flown by Republic	7h 18m	99%	89%
American Details →	ATL 06:05 → LGA 08:30AA 4595 · flown by Republic	2h 43m New York	LGA 11:13 → PWM 12:35AA 2931	6h 30m	97%	87%
Delta Details →	ATL 09:18 → DTW 11:10DL 1298	2h 50m Detroit	DTW 14:00 → PWM 15:55DL 1821	6h 37m	99%	86%
United Details →	ATL 09:25 → IAD 11:15UA 632	1h 30m Dulles	IAD 12:45 → PWM 14:34UA 3535 · flown by Republic	5h 09m	97%	86%
American Details →	ATL 07:05 → PHL 09:15AA 1428	3h 30m Philadelphia	PHL 12:45 → PWM 14:16AA 2354	7h 11m	98%	86%
Southwest Details →	ATL 07:00 → BWI 08:50WN 4364	2h 00m Baltimore	BWI 10:50 → PWM 12:20WN 1065	5h 20m	97%	79%
Southwest Details →	ATL 10:15 → BWI 12:10WN 186	3h 05m Baltimore	BWI 15:15 → PWM 16:45WN 297	6h 30m	100%	77%
Tight connection: often missed
United Details →	ATL 14:41 → IAD 16:35UA 1831	55m Dulles	IAD 17:30 → PWM 19:27UA 3651 · flown by Republic	4h 46m	71%	55%
JetBlue Details →	ATL 18:23 → JFK 21:00B6 520	1h 35m New York	JFK 22:35 → PWM 00:25 +1B6 308	5h 52m	72%	43%
American Details →	ATL 16:58 → DCA 18:59AA 5084 · flown by PSA	3h 10m Washington	DCA 22:09 → PWM 23:59AA 4353 · flown by Republic	7h 01m	71%	36%

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

IAD · 1h 00m · leaves 05:30 4%

LGA · 1h 18m · leaves 07:30 4%

DEN · 1h 03m · leaves 07:30 8%

Afternoon and evening

ORD · 1h 11m · leaves 15:30 21%

IAD · 55m · leaves 14:41 29%

BWI · 50m · leaves 19:50 52%

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 404 ATL 06:00 → LGA American AA 2931 LGA 11:13 → PWM Connection details →	3h 02m	6h 35m	99%	88%
Delta DL 1324 ATL 07:43 → IAD United UA 3535 IAD 12:45 → PWM Connection details →	3h 19m	6h 51m	98%	85%
Delta DL 2325 ATL 07:10 → EWR United UA 3685 EWR 11:59 → PWM Connection details →	2h 35m	6h 15m	97%	85%

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