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 10 am and 29% of the time at 6 pm.

Nonstops


American	BWI	ORD	2h 28m	78%	3.7%	1,199	Flying now
United	BWI	ORD	2h 18m	75%	1.2%	1,239	Flying now
Southwest	BWI	ORD	2h 15m	90%	0.0%	93	Not flying now
Frontier	BWI	ORD	2h 24m	68%	4.3%	140	Not flying now
Spirit	BWI	ORD	–	89%few flights	0.0%	18	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Chicago on time. Total trip = scheduled departure to arrival, layover included (Chicago is 1 h behind Baltimore). Layovers up to 4 hours. Pick a connection for the details.


American Details →	BWI 06:15 → CLT 07:53AA 2670	3h 08m Charlotte	CLT 11:01 → ORD 12:19AA 2908	7h 04m	98%	87%
Delta Details →	BWI 06:08 → DTW 07:40DL 2601	2h 35m Detroit	DTW 10:15 → ORD 10:50DL 3673 · flown by SkyWest	5h 42m	98%	86%
American Details →	BWI 05:02 → CLT 06:26AA 1708	1h 20m Charlotte	CLT 07:46 → ORD 09:02AA 2843	5h 00m	97%	83%
United Details →	BWI 06:00 → IAH 08:16UA 1898	1h 19m Houston	IAH 09:35 → ORD 12:29UA 2124	7h 29m	97%	81%
Delta Details →	BWI 09:00 → BOS 10:39DL 5703 · flown by Republic	1h 46m Boston	BOS 12:25 → ORD 14:19DL 2816	6h 19m	96%	74%
Delta Details →	BWI 08:17 → ATL 10:15DL 2562	2h 47m Atlanta	ATL 13:02 → ORD 14:16DL 1477	6h 59m	99%	72%
Delta Details →	BWI 05:40 → ATL 07:31DL 2950	1h 31m Atlanta	ATL 09:02 → ORD 10:13DL 1147	5h 33m	96%	72%
American Details →	BWI 10:06 → CLT 11:39AA 1635	2h 56m Charlotte	CLT 14:35 → ORD 15:56AA 2080	6h 50m	100%	71%
Tight connection: often missed
United Details →	BWI 16:23 → DEN 18:18UA 2012	52m Denver	DEN 19:10 → ORD 22:49UA 2258	7h 26m	71%	49%
Delta Details →	BWI 17:32 → DTW 19:14DL 2480	46m Detroit	DTW 20:00 → ORD 20:31DL 1665	3h 59m	71%	44%
American Details →	BWI 13:55 → CLT 15:32AA 846	46m Charlotte	CLT 16:18 → ORD 17:42AA 536	4h 46m	63%	42%

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 05:02 3%

IAH · 1h 19m · leaves 06:00 3%

ATL · 1h 07m · leaves 08:17 8%

Afternoon and evening

DTW · 46m · leaves 17:32 29%

DEN · 52m · leaves 16:23 29%

CLT · 46m · leaves 13:55 37%

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.


Southwest WN 857 BWI 07:00 → ALB United UA 2825 ALB 12:20 → ORD Connection details →	4h 00m	7h 56m	100%	92%
Southwest WN 1002 BWI 07:05 → MHT American AA 3747 MHT 12:01 → ORD Connection details →	3h 26m	7h 47m	98%	91%
Southwest WN 883 BWI 06:38 → BOS American AA 3022 BOS 10:29 → ORD Connection details →	2h 21m	6h 51m	100%	91%

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