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 90-minute layover misses 4% of the time at 8 am and 22% of the time at 4 pm.

Nonstops


American	BUF	DCA	1h 27m	67%	4.9%	1,134	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.


Delta Details →	BUF 06:29 → DTW 07:42DL 2898	2h 23m Detroit	DTW 10:05 → DCA 11:34DL 2476	5h 05m	97%	82%
United Details →	BUF 07:00 → ORD 07:59UA 543	2h 01m Chicago	ORD 10:00 → DCA 13:04UA 1381	6h 04m	96%	79%
American Details →	BUF 07:15 → BOS 08:51AA 4788 · flown by Republic	3h 01m Boston	BOS 11:52 → DCA 13:44AA 4349 · flown by Republic	6h 29m	99%	79%
JetBlue Details →	BUF 06:00 → BOS 07:27B6 716	2h 53m Boston	BOS 10:20 → DCA 12:01B6 1055	6h 00m	97%	79%
American Details →	BUF 06:02 → LGA 07:24AA 4522 · flown by Republic	3h 23m New York	LGA 10:47 → DCA 12:17AA 4654 · flown by Republic	6h 15m	94%	78%
Delta Details →	BUF 06:00 → ATL 08:10DL 2664	2h 50m Atlanta	ATL 11:00 → DCA 12:42DL 737	6h 42m	99%	77%
American Details →	BUF 06:01 → CLT 08:01AA 1204	3h 13m Charlotte	CLT 11:14 → DCA 12:59AA 5527 · flown by PSA	6h 57m	98%	76%
American Details →	BUF 08:08 → ORD 09:10AA 2112	1h 35m Chicago	ORD 10:45 → DCA 13:59AA 4809 · flown by Republic	5h 51m	92%	73%
Tight connection: often missed
American Details →	BUF 13:47 → CLT 15:49AA 1616	58m Charlotte	CLT 16:47 → DCA 18:22AA 3263	4h 35m	72%	36%
American Details →	BUF 19:35 → CLT 21:36AA 1614	52m Charlotte	CLT 22:28 → DCA 23:53AA 1269	4h 19m	56%	34%
American Details →	BUF 16:46 → DFW 19:10AA 1615	50m Dallas-Fort Worth	DFW 20:00 → DCA 23:59AA 2077	7h 13m	42%	25%

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

CLT · 1h 20m · leaves 06:01 4%

BOS · 1h 15m · leaves 10:25 8%

ATL · 1h 10m · leaves 06:00 10%

Afternoon and evening

BOS · 1h 03m · leaves 13:31 18%

CLT · 52m · leaves 19:35 44%

DFW · 50m · leaves 16:46 58%

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.


American AA 1195 BUF 06:00 → ORD United UA 1381 ORD 10:00 → DCA Connection details →	2h 57m	7h 04m	96%	78%
Delta DL 4670 BUF 06:05 → LGA American AA 4654 LGA 10:47 → DCA Connection details →	3h 17m	6h 12m	97%	77%
JetBlue B6 716 BUF 06:00 → BOS Delta DL 5592 BOS 10:25 → DCA Connection details →	2h 58m	6h 12m	94%	77%

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