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 7 am and 15% of the time at 5 pm.

Nonstops (seasonal or thin)


Southwest	SDF	BWI	1h 35m	87%	1.9%	891	Flying now

Best connections, any airlines

Most reliable Quickest (80%+ on time)

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


Delta Details →	SDF 06:00 → ATL 07:25DL 2407	3h 45m Atlanta	ATL 11:10 → BWI 13:03DL 2711	7h 03m	99%	85%
Southwest Details →	SDF 06:40 → MCO 08:40WN 4679	2h 15m Orlando	MCO 10:55 → BWI 13:10WN 193	6h 30m	100%	85%
United Details →	SDF 07:15 → ORD 07:56UA 3422 · flown by Republic	2h 55m Chicago	ORD 10:51 → BWI 13:57UA 2653	6h 42m	99%	81%
American Details →	SDF 05:04 → CLT 06:41AA 5255 · flown by PSA	1h 19m Charlotte	CLT 08:00 → BWI 09:26AA 1635	4h 22m	90%	79%
Delta + Southwesttwo ticketsDetails →	SDF 07:05 → ATL 08:34DL 1610	1h 41m Atlanta	ATL 10:15 → BWI 12:10WN 186	5h 05m	90%	78%
Delta Details →	SDF 10:35 → DTW 12:06DL 3821 · flown by SkyWest	3h 03m Detroit	DTW 15:09 → BWI 16:45DL 2480	6h 10m	98%	77%
Delta + Frontiertwo ticketsDetails →	SDF 07:50 → DTW 09:16DL 5824 · flown by Republic	3h 34m Detroit	DTW 12:50 → BWI 14:26F9 1516	6h 36m	97%	75%
Delta Details →	SDF 10:00 → ATL 11:24DL 1523	2h 38m Atlanta	ATL 14:02 → BWI 15:53DL 2799	5h 53m	97%	75%
Tight connection: often missed
American Details →	SDF 19:13 → ORD 20:14AA 4668 · flown by Republic	46m Chicago	ORD 21:00 → BWI 23:59AA 3866 · flown by Envoy	4h 46m	72%	37%
Delta Details →	SDF 12:40 → MSP 13:48DL 4988 · flown by Endeavor	53m Minneapolis	MSP 14:41 → BWI 18:15DL 2565	5h 34m	54%	34%
Southwest Details →	SDF 17:30 → MCO 19:35WN 910	1h 10m Orlando	MCO 20:45 → BWI 20:55WN 455	5h 40m	47%	24%

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

IAH · 1h 18m · leaves 09:30 9%

CLT · 1h 19m · leaves 05:04 10%

DTW · 54m · leaves 07:50 14%

Afternoon and evening

ATL · 1h 11m · leaves 16:40 14%

CLT · 50m · leaves 20:19 23%

ORD · 46m · leaves 19:13 28%

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.

The table above includes two-ticket connections (marked “two tickets”), held to the 90-minute minimum. One ticket only →

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