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 6 am and 37% of the time at 7 pm.

Nonstops


Frontier	RDU	BOS	2h 07m	82%	0.0%	168	Flying now
Delta	RDU	BOS	2h 07m	81%	2.9%	1,568	Flying now
JetBlue	RDU	BOS	2h 00m	78%	3.0%	1,091	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


American Details →	RDU 05:01 → CLT 06:00AA 1903	2h 55m Charlotte	CLT 08:55 → BOS 11:08AA 1533	6h 07m	99%	93%
American Details →	RDU 06:41 → CLT 07:49AA 2420	3h 29m Charlotte	CLT 11:18 → BOS 13:33AA 1611	6h 52m	100%	88%
Delta Details →	RDU 05:20 → ATL 06:44DL 1552	1h 51m Atlanta	ATL 08:35 → BOS 11:14DL 2432	5h 54m	98%	88%
United Details →	RDU 06:00 → IAD 07:11UA 1789	1h 24m Dulles	IAD 08:35 → BOS 10:20UA 641	4h 20m	98%	87%
American Details →	RDU 06:00 → DCA 07:14AA 2985	2h 26m Washington	DCA 09:40 → BOS 11:24AA 4691 · flown by Republic	5h 24m	99%	85%
American Details →	RDU 05:15 → JFK 07:12AA 4805 · flown by Republic	1h 12m New York	JFK 08:24 → BOS 09:48AA 4376 · flown by Republic	4h 33m	96%	84%
Delta Details →	RDU 06:20 → ATL 07:48DL 1192	2h 12m Atlanta	ATL 10:00 → BOS 12:44DL 855	6h 24m	99%	82%
Delta Details →	RDU 06:00 → DCA 07:19DL 5006 · flown by Endeavor	2h 41m Washington	DCA 10:00 → BOS 11:43DL 5611 · flown by Republic	5h 43m	97%	81%
Tight connection: often missed
American Details →	RDU 16:15 → CLT 17:34AA 2402	1h 00m Charlotte	CLT 18:34 → BOS 20:59AA 2595	4h 44m	64%	37%
Delta Details →	RDU 17:03 → MCO 19:04DL 1319	55m Orlando	MCO 19:59 → BOS 23:13DL 888	6h 10m	63%	35%
Southwest Details →	RDU 20:20 → BWI 21:30WN 3425	1h 00m Baltimore	BWI 22:30 → BOS 00:10 +1WN 892	3h 45m	70%	35%

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

ATL · 1h 18m · leaves 09:58 1%

JFK · 1h 12m · leaves 05:15 4%

CLT · 1h 06m · leaves 05:01 4%

Afternoon and evening

PHL · 56m · leaves 19:45 45%

ORD · 1h 03m · leaves 17:12 51%

LGA · 1h 08m · leaves 17:05 54%

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.


United UA 1525 RDU 06:00 → EWR Delta DL 5764 EWR 09:30 → BOS Connection details →	1h 50m	4h 55m	95%	84%
American AA 1903 RDU 05:01 → CLT Delta DL 5626 CLT 09:40 → BOS Connection details →	3h 40m	7h 07m	99%	83%
Southwest WN 3435 RDU 06:25 → STL American AA 3814 STL 09:39 → BOS Connection details →	2h 09m	6h 59m	96%	83%

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