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

No clear winner: American’s DFW → IDA flights land within a few points of 78% on time whatever the hour.

Nonstops (seasonal or thin)


American	DFW	IDA	3h 11m	78%	1.5%	528	Flying now

Best connections, any airlines

Most reliable Quickest (80%+ on time)

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


Delta Details →	DFW 07:45 → SLC 09:34DL 1291	3h 56m Salt Lake City	SLC 13:30 → IDA 14:37DL 3765 · flown by SkyWest	7h 52m	98%	90%
Delta Details →	DFW 12:30 → SLC 14:25DL 2798	2h 45m Salt Lake City	SLC 17:10 → IDA 18:18DL 3895 · flown by SkyWest	6h 47m	98%	85%
United Details →	DFW 05:45 → DEN 06:53UA 773	1h 12m Denver	DEN 08:05 → IDA 09:50UA 5374 · flown by SkyWest	5h 05m	98%	83%
United Details →	DFW 08:45 → DEN 10:06UA 644	3h 44m Denver	DEN 13:50 → IDA 15:34UA 5950 · flown by SkyWest	7h 49m	100%	82%
United Details →	DFW 11:35 → DEN 12:45UA 2049	2h 50m Denver	DEN 15:35 → IDA 17:19UA 5322 · flown by SkyWest	6h 44m	97%	80%
Alaska Details →	DFW 16:16 → SEA 18:37AS 1580	1h 13m Seattle	SEA 19:50 → IDA 22:39AS 3423 · flown by SkyWest	7h 23m	90%	71%
American + Unitedtwo ticketsDetails →	DFW 07:04 → DEN 08:08AA 1523	3h 37m Denver	DEN 11:45 → IDA 13:25UA 2383	7h 21m	98%	71%
American + Alaskatwo ticketsDetails →	DFW 07:10 → SEA 09:25AA 707	3h 20m Seattle	SEA 12:45 → IDA 15:37AS 3490 · flown by SkyWest	9h 27m	96%	68%
Tight connection: often missed
United Details →	DFW 16:50 → DEN 18:20UA 1303	1h 00m Denver	DEN 19:20 → IDA 21:07UA 5989 · flown by SkyWest	5h 17m	59%	38%

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

DEN · 1h 12m · leaves 05:45 2%

ORD · 1h 20m · leaves 07:18 13%

Afternoon and evening

SLC · 52m · leaves 14:31 22%

DEN · 1h 00m · leaves 16:50 41%

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