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 5% of the time at 8 am and 2 times in 5 at 9 pm.

Nonstops


Delta	BOS	DCA	1h 54m	77%	3.7%	3,127	Flying now
American	BOS	DCA	1h 48m	77%	3.6%	3,337	Flying now
JetBlue	BOS	DCA	1h 44m	69%	4.1%	2,628	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 →	BOS 06:00 → ORD 07:58UA 1414	2h 02m Chicago	ORD 10:00 → DCA 13:04UA 1381	7h 04m	100%	83%
Delta Details →	BOS 06:06 → JFK 07:25DL 2611	1h 10m New York	JFK 08:35 → DCA 10:02DL 5750 · flown by Republic	3h 56m	96%	83%
Southwest Details →	BOS 05:25 → MDW 07:00WN 3239	1h 15m Chicago	MDW 08:15 → DCA 11:10WN 2569	5h 45m	91%	82%
Delta Details →	BOS 05:30 → DTW 07:39DL 1019	2h 26m Detroit	DTW 10:05 → DCA 11:34DL 2476	6h 04m	98%	81%
American Details →	BOS 06:00 → LGA 07:24AA 4424 · flown by Republic	3h 23m New York	LGA 10:47 → DCA 12:17AA 4654 · flown by Republic	6h 17m	100%	79%
Delta Details →	BOS 05:30 → ATL 08:15DL 2242	2h 45m Atlanta	ATL 11:00 → DCA 12:42DL 737	7h 12m	100%	79%
American Details →	BOS 05:10 → MIA 08:38AA 1418	1h 20m Miami	MIA 09:58 → DCA 12:37AA 2915	7h 26m	98%	78%
American Details →	BOS 06:05 → CLT 08:30AA 418	2h 44m Charlotte	CLT 11:14 → DCA 12:59AA 5527 · flown by PSA	6h 53m	99%	77%
Tight connection: often missed
Delta Details →	BOS 17:56 → ATL 21:01DL 2464	54m Atlanta	ATL 21:55 → DCA 23:44DL 537	5h 48m	71%	48%
Southwest Details →	BOS 12:55 → STL 14:45WN 4917	1h 00m St Louis	STL 15:45 → DCA 18:45WN 3907	5h 50m	61%	31%
JetBlue Details →	BOS 19:05 → JFK 20:36B6 817	54m New York	JFK 21:30 → DCA 22:59B6 955	3h 54m	53%	22%

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 05m · leaves 05:30 2%

MIA · 1h 20m · leaves 05:10 2%

JFK · 1h 10m · leaves 06:06 4%

Afternoon and evening

JFK · 54m · leaves 19:05 47%

EWR · 1h 05m · leaves 17:44 56%

ORD · 56m · leaves 17:38 66%

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.


JetBlue B6 917 BOS 05:15 → JFK Delta DL 5750 JFK 08:35 → DCA Connection details →	2h 07m	4h 47m	98%	84%
Delta DL 5836 BOS 06:00 → LGA American AA 4654 LGA 10:47 → DCA Connection details →	3h 27m	6h 17m	100%	81%
JetBlue B6 109 BOS 07:05 → JAX American AA 949 JAX 11:49 → DCA Connection details →	1h 53m	6h 39m	87%	75%

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