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

No clear winner: airlines and hours on this route all land within a few points of 87% on time.

Nonstops


Delta	OKC	ATL	2h 08m	89%	2.7%	1,728	Flying now
Frontier	OKC	ATL	2h 24m	54%	3.2%	94	Flying now
Southwest	OKC	ATL	–	100%few flights	0.0%	1	Not 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 Oklahoma City). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	OKC 05:00 → MDW 06:55WN 3121	2h 00m Chicago	MDW 08:55 → ATL 11:45WN 4154	5h 45m	100%	86%
Delta Details →	OKC 11:57 → MSP 14:03DL 5142 · flown by Endeavor	3h 12m Minneapolis	MSP 17:15 → ATL 20:56DL 1036	7h 59m	100%	83%
United Details →	OKC 06:05 → DEN 06:58UA 4751 · flown by SkyWest	3h 02m Denver	DEN 10:00 → ATL 15:10UA 2424	8h 05m	99%	83%
Southwest Details →	OKC 05:45 → DAL 06:40WN 3109	2h 50m Dallas	DAL 09:30 → ATL 12:35WN 1766	5h 50m	100%	79%
Delta Details →	OKC 07:15 → MSP 09:29DL 3844 · flown by SkyWest	3h 16m Minneapolis	MSP 12:45 → ATL 16:16DL 1048	8h 01m	100%	79%
United Details →	OKC 07:00 → IAH 08:28UA 1127	3h 27m Houston	IAH 11:55 → ATL 15:16UA 4079 · flown by Mesa	7h 16m	100%	78%
American Details →	OKC 05:01 → DFW 06:07AA 656	1h 10m Dallas-Fort Worth	DFW 07:17 → ATL 10:28AA 3249	4h 27m	94%	77%
United Details →	OKC 09:15 → DEN 10:01UA 1424	3h 25m Denver	DEN 13:26 → ATL 18:30UA 1671	8h 15m	100%	76%
Tight connection: often missed
American Details →	OKC 17:47 → CLT 21:29AA 3299	1h 07m Charlotte	CLT 22:36 → ATL 23:58AA 5498 · flown by PSA	5h 11m	72%	49%
American Details →	OKC 16:38 → DFW 17:49AA 3730 · flown by Envoy	1h 37m Dallas-Fort Worth	DFW 19:26 → ATL 22:36AA 3212	4h 57m	73%	38%
Southwest Details →	OKC 13:00 → DEN 13:35WN 3113	1h 00m Denver	DEN 14:35 → ATL 19:30WN 4170	5h 30m	68%	21%

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 · 1h 12m · leaves 05:01 6%

MSP · 1h 11m · leaves 07:15 6%

LAX · 55m · leaves 07:26 7%

Afternoon and evening

MDW · 1h 12m · leaves 15:48 29%

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.


United UA 4751 OKC 06:05 → DEN Delta DL 2235 DEN 09:40 → ATL Connection details →	2h 42m	7h 31m	99%	83%
Southwest WN 3107 OKC 07:32 → BNA Delta DL 1155 BNA 10:53 → ATL Connection details →	1h 35m	4h 33m	94%	83%
Southwest WN 3109 OKC 05:45 → DAL Delta DL 441 DAL 10:09 → ATL Connection details →	3h 29m	6h 34m	100%	82%

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