Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

No clear winner: Delta’s SGF → ATL flights land within a few points of 4 in 5 on time whatever the hour.

Nonstops


Delta	SGF	ATL	1h 54m	81%	1.6%	1,290	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	SGF 05:50 → DEN 06:57UA 5895 · flown by SkyWest	3h 03m Denver	DEN 10:00 → ATL 15:10UA 2424	8h 20m	97%	82%
United Details →	SGF 06:15 → IAH 08:17UA 4852 · flown by CommuteAir	3h 38m Houston	IAH 11:55 → ATL 15:16UA 4079 · flown by Mesa	8h 01m	98%	77%
United Details →	SGF 09:03 → DEN 10:20UA 5898 · flown by SkyWest	3h 06m Denver	DEN 13:26 → ATL 18:30UA 1671	8h 27m	98%	77%
American Details →	SGF 05:01 → DFW 06:38AA 3842 · flown by Envoy	2h 56m Dallas-Fort Worth	DFW 09:34 → ATL 12:46AA 1358	6h 45m	99%	71%
United Details →	SGF 13:33 → DEN 14:48UA 5541 · flown by SkyWest	3h 00m Denver	DEN 17:48 → ATL 22:57UA 1305	8h 24m	97%	68%
American Details →	SGF 06:53 → CLT 10:15AA 4083 · flown by Envoy	2h 50m Charlotte	CLT 13:05 → ATL 14:31AA 5041 · flown by PSA	6h 37m	99%	64%
American Details →	SGF 07:00 → DFW 08:40AA 3424 · flown by Envoy	2h 18m Dallas-Fort Worth	DFW 10:58 → ATL 14:10AA 1386	6h 10m	95%	63%
American Details →	SGF 10:34 → ORD 12:21AA 3800 · flown by Envoy	1h 14m Chicago	ORD 13:35 → ATL 16:47AA 4759 · flown by Republic	5h 13m	91%	60%
Tight connection: often missed
United Details →	SGF 07:45 → ORD 09:40UA 4421 · flown by GoJet	49m Chicago	ORD 10:29 → ATL 13:44UA 2684	4h 59m	73%	60%
American Details →	SGF 18:12 → CLT 21:34AA 5407 · flown by PSA	1h 02m Charlotte	CLT 22:36 → ATL 23:58AA 5498 · flown by PSA	4h 46m	64%	42%
American Details →	SGF 18:34 → DFW 20:15AA 3803 · flown by Envoy	55m Dallas-Fort Worth	DFW 21:10 → ATL 00:19 +1AA 2749	4h 45m	65%	34%

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

DFW · 59m · leaves 09:30 11%

ORD · 49m · leaves 07:45 27%

Afternoon and evening

ORD · 1h 18m · leaves 15:07 24%

DFW · 55m · leaves 18:34 35%

CLT · 1h 02m · leaves 18:12 36%

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 4083 SGF 06:53 → CLT Delta DL 3190 CLT 12:19 → ATL Connection details →	2h 04m	5h 48m	97%	82%
United UA 5895 SGF 05:50 → DEN Delta DL 2235 DEN 09:40 → ATL Connection details →	2h 43m	7h 46m	95%	81%
United UA 5898 SGF 09:03 → DEN Delta DL 706 DEN 14:15 → ATL Connection details →	3h 55m	9h 17m	99%	81%

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