Route on-time record

OMA to LAS: most on-time flights and the best time to fly

Omaha (Eppley Airfield) to Las Vegas (Harry Reid International Airport). 1,125 nonstop flights in Jun 2025 to May 2026, 85% arrived within 15 minutes and 0.4% were cancelled. The most reliable flight number was Southwest 4607 at 7:00 AM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

OMA → LAS

Omaha to Las Vegas: 1,125 nonstop flights a year

On time (12 months)

85%

Cancelled

0.4%

avg delay 11 min

Best time to leave

Before 9 AM

93% on time vs 74% 6 to 9 PM

Most reliable airline

Allegiant

86% chance on time

Check OMA to LAS fares

Fares open on our travel partner (Aviasales). Pick the flight number you chose here.

Most reliable nonstop flights

Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.

#1 · Southwest 4607
7:00 AM → 7:55 AM2h 55m nonstop
Local times, typical schedule. Last flown 2026-05-31.
94%
chance on time
On time (history)
98%
Cancelled
0.0%
Avg arrival delay
2 min
- Arrived on time 98% of the time (54 flights, Jun 2025 to May 2026).
- Never cancelled in 54 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; 6 to 9 PM: 74%).
- Short track record (54 flights), so its score leans on the airline's record at this hour.
Limited track record · 54 flights
Find Southwest 4607 fares Opens this date on Aviasales
#2 · Southwest 2809
5:40 AM → 6:45 AM3h 05m nonstop
Local times, typical schedule. Last flown 2026-04-06. Same departure also flew as Southwest 206; its record covers all of them.
92%
chance on time
On time (history)
95%
Cancelled
0.0%
Avg arrival delay
5 min
- Arrived on time 95% of the time (41 flights, Jun 2025 to May 2026).
- Never cancelled in 41 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 93% on time; 6 to 9 PM: 74%).
- Short track record (41 flights), so its score leans on the airline's record at this hour.
Limited track record · 41 flights
Find Southwest 2809 fares Opens this date on Aviasales
#3 · Southwest 1343
11:35 AM → 12:40 PM3h 05m nonstop
Local times, typical schedule. Last flown 2026-05-27.
87%
chance on time
On time (history)
88%
Cancelled
0.0%
Avg arrival delay
3 min
- Arrived on time 88% of the time (16 flights, Jun 2025 to May 2026).
- Lands inside LAS's trouble window: 51% of its 104 ground stops and delay programs started between 10 AM and 4 PM.
- Short track record (16 flights), so its score leans on the airline's record at this hour.
Limited track record · 16 flights
Find Southwest 1343 fares Opens this date on Aviasales
#4 · Allegiant 1702
12:34 PM → 1:32 PM2h 58m nonstop
Local times, typical schedule. Last flown 2026-05-18.
87%
chance on time
On time (history)
85%
Cancelled
0.0%
Avg arrival delay
11 min
- Arrived on time 85% of the time (20 flights, Jun 2025 to May 2026).
- Lands inside LAS's trouble window: 51% of its 104 ground stops and delay programs started between 10 AM and 4 PM.
- 57% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (20 flights), so its score leans on the airline's record at this hour.
Limited track record · 20 flights
Find Allegiant 1702 fares Opens this date on Aviasales
#5 · Southwest 792
5:25 PM → 6:30 PM3h 00m nonstop
Local times, typical schedule. Last flown 2026-04-05.
84%
chance on time
On time (history)
82%
Cancelled
5.6%
Avg arrival delay
6 min
- Arrived on time 82% of the time (17 flights, Jun 2025 to May 2026).
- Short track record (17 flights), so its score leans on the airline's record at this hour.
Limited track record · 17 flights
Find Southwest 792 fares Opens this date on Aviasales
#6 · Southwest 2064
1:20 PM → 2:15 PM2h 55m nonstop
Local times, typical schedule. Last flown 2026-05-29.
82%
chance on time
On time (history)
78%
Cancelled
0.0%
Avg arrival delay
13 min
- Arrived on time 78% of the time (23 flights, Jun 2025 to May 2026).
- Lands inside LAS's trouble window: 51% of its 104 ground stops and delay programs started between 10 AM and 4 PM.
- Short track record (23 flights), so its score leans on the airline's record at this hour.
Limited track record · 23 flights
Find Southwest 2064 fares Opens this date on Aviasales
#7 · Southwest 3673
4:00 PM → 5:00 PM3h 00m nonstop
Local times, typical schedule. Last flown 2026-04-06.
81%
chance on time
On time (history)
80%
Cancelled
0.0%
Avg arrival delay
13 min
- Arrived on time 80% of the time (15 flights, Jun 2025 to May 2026).
- 83% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (15 flights), so its score leans on the airline's record at this hour.
Limited track record · 15 flights
Find Southwest 3673 fares Opens this date on Aviasales
#8 · Southwest 3632
6:10 PM → 7:05 PM2h 55m nonstop
Local times, typical schedule. Last flown 2026-05-31.
76%
chance on time
On time (history)
68%
Cancelled
0.0%
Avg arrival delay
22 min
- Arrived on time 68% of the time (31 flights, Jun 2025 to May 2026).
- Never cancelled in 31 scheduled flights.
- Leaves in this route's least on-time window (6 to 9 PM: 74% on time; Before 9 AM: 93%).
- Short track record (31 flights), so its score leans on the airline's record at this hour.
Limited track record · 31 flights
Find Southwest 3632 fares Opens this date on Aviasales
#9 · Southwest 1757
7:15 PM → 8:10 PM2h 55m nonstop
Local times, typical schedule. Last flown 2026-05-31.
76%
chance on time
On time (history)
69%
Cancelled
0.0%
Avg arrival delay
27 min
- Arrived on time 69% of the time (32 flights, Jun 2025 to May 2026).
- Never cancelled in 32 scheduled flights.
- Leaves in this route's least on-time window (6 to 9 PM: 74% on time; Before 9 AM: 93%).
- 76% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 32 flights
Find Southwest 1757 fares Opens this date on Aviasales
#10 · Southwest 2127
8:45 PM → 9:45 PM3h 00m nonstop
Local times, typical schedule. Last flown 2026-04-06.
72%
chance on time
On time (history)
61%
Cancelled
8.0%
Avg arrival delay
30 min
- Arrived on time 61% of the time (23 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (6 to 9 PM: 74% on time; Before 9 AM: 93%).
- 56% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (23 flights), so its score leans on the airline's record at this hour.
Limited track record · 23 flights
Find Southwest 2127 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

Allegiant Air86%
98 flights · 87% on time as flown · 0.2% cancel
Southwest Airlines85%
1,027 flights · 85% on time as flown · 0.4% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

Before 9 AM93%
342 flights · avg delay 5 min
9 AM to noon91%
78 flights · avg delay 4 min
Noon to 3 PM86%
297 flights · avg delay 11 min
3 to 6 PM79%
156 flights · avg delay 10 min
6 to 9 PM74%
246 flights · avg delay 20 min

Best day: Wednesday (87%). Worst: Thursday (79%).

On time by month

All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.

What delays this route

Late-arriving aircraft50%
Airline (crew, maintenance, boarding)24%
Air traffic control and airport volume22%
Severe weather4%

Share of delay minutes by the cause airlines report to the US DOT.

Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure

OMA to LAS questions

What time of day is best to fly OMA to LAS?: Before 9 AM: 93% of flights arrived on time, against 74% for departures 6 to 9 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
Which airline is most on time from OMA to LAS?: Allegiant, with a season-adjusted 86% chance of operating and arriving on time over 98 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
What is the worst month for delays on OMA to LAS?: July (75% on time); the best was December (89%), averaged over Jun 2023 to May 2026.
Is this a prediction for my flight?: No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.

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