Route Reliability
Chicago → Las Vegas
MDW–LAS · 1,521 miles · Chicago Midway International Airport to Harry Reid International Airport
- 78%
- Arrive within 15 minutes
- 6 min
- Average arrival delay
- 1.0%
- Cancelled
- 2,405
- Flights in the data
Data through May 2026.
Airlines on this route
- Southwest Airlines78% on time · 2,388 flights
- Frontier Airlines93% on time · 15 flights
- Allegiant Air50% on time · 2 flights
Too little history on this route to call a winner. We rank airlines only after 100 flights each.
What the data says
Morning-you made the right choice.
MDW–LAS flights departing between 3–6 AM arrived on time 93% of the time, versus 54% between 9 PM–12 AM.
Skip Thursday if you can.
MDW–LAS flights arrived on time 83% of the time on Saturdays. On Thursdays: 76%.
Slipping a little lately.
MDW–LAS flights arrived on time 74% of the time over the last three months in the data, compared with 78% in the three months before that.
Flights on this route
The breakdown
- Mon76%(360 flights)
- Tue77%(340 flights)
- Wed81%(338 flights)
- Thu76%(351 flights)
- Fri76%(358 flights)
- Sat83%(259 flights)
- Sun77%(366 flights)
- 3–6 AM93%(200 flights)
- 6–9 AM91%(474 flights)
- 9 AM–12 PM84%(450 flights)
- 12–3 PM76%(353 flights)
- 3–6 PM69%(412 flights)
- 6–9 PM64%(334 flights)
- 9 PM–12 AM54%(149 flights)
Jun 79% → May 79% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 79% | 252 |
| July 2025 | 70% | 253 |
| August 2025 | 84% | 215 |
| September 2025 | 84% | 210 |
| October 2025 | 84% | 209 |
| November 2025 | 77% | 168 |
| December 2025 | 69% | 185 |
| January 2026 | 84% | 160 |
| February 2026 | 80% | 138 |
| March 2026 | 65% | 191 |
| April 2026 | 77% | 190 |
| May 2026 | 79% | 201 |
Same trip, other airports
Keep nerding
Based on 2,405 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.