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 7 am and 23% of the time at 7 pm.

Nonstops (seasonal or thin)


Allegiant	SGF	LAS	3h 13m	84%	1.6%	125	Flying now

Best connections, any airlines

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Las Vegas on time. Total trip = scheduled departure to arrival, layover included (Las Vegas is 2 h behind Springfield). Layovers up to 4 hours. Pick a connection for the details.


United Details →	SGF 05:50 → DEN 06:57UA 5895 · flown by SkyWest	1h 08m Denver	DEN 08:05 → LAS 09:07UA 2316	5h 17m	92%	86%
United Details →	SGF 06:15 → IAH 08:17UA 4852 · flown by CommuteAir	3h 38m Houston	IAH 11:55 → LAS 13:13UA 1524	8h 58m	98%	86%
American Details →	SGF 05:01 → DFW 06:38AA 3842 · flown by Envoy	1h 47m Dallas-Fort Worth	DFW 08:25 → LAS 09:16AA 1584	6h 15m	98%	82%
American + Frontiertwo ticketsDetails →	SGF 07:00 → DFW 08:40AA 3424 · flown by Envoy	3h 16m Dallas-Fort Worth	DFW 11:56 → LAS 12:57F9 1051	7h 57m	95%	80%
American Details →	SGF 06:53 → CLT 10:15AA 4083 · flown by Envoy	1h 11m Charlotte	CLT 11:26 → LAS 13:06AA 2038	8h 13m	97%	79%
United Details →	SGF 11:25 → DEN 12:40UA 5903 · flown by SkyWest	3h 20m Denver	DEN 16:00 → LAS 17:03UA 716	7h 38m	100%	78%
Delta Details →	SGF 06:00 → ATL 08:54DL 1680	2h 06m Atlanta	ATL 11:00 → LAS 12:10DL 466	8h 10m	100%	77%
American + Unitedtwo ticketsDetails →	SGF 07:12 → ORD 09:05AA 4129 · flown by Envoy	1h 55m Chicago	ORD 11:00 → LAS 13:05UA 2440	7h 53m	88%	76%
Tight connection: often missed
United Details →	SGF 15:05 → IAH 17:10UA 4840 · flown by CommuteAir	1h 29m Houston	IAH 18:39 → LAS 19:57UA 2406	6h 52m	71%	56%
Delta Details →	SGF 15:30 → ATL 18:25DL 4854 · flown by Endeavor	1h 30m Atlanta	ATL 19:55 → LAS 21:10DL 955	7h 40m	74%	49%

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 11m · leaves 06:53 3%

DFW · 1h 07m · leaves 09:30 8%

DEN · 1h 08m · leaves 05:50 8%

Afternoon and evening

ORD · 1h 17m · leaves 14:21 15%

IAH · 55m · leaves 17:08 23%

DFW · 1h 19m · leaves 18:34 24%

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