Route Reliability
Washington → Las Vegas
DCA–LAS · 2,089 miles · Ronald Reagan Washington National Airport to Harry Reid International Airport
- 72%
- Arrive within 15 minutes
- 8 min
- Average arrival delay
- 1.2%
- Cancelled
- 730
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.American Airlines90%365 flights
- 2.Southwest Airlines55%365 flights
What the data says
Morning-you made the right choice.
DCA–LAS flights departing between 6–9 AM arrived on time 91% of the time, versus 49% between 3–6 PM.
Thursdays have been rough.
DCA–LAS flights arrived on time 88% of the time on Saturdays and just 67% on Thursdays. That gap is worth planning around.
American Airlines has a clear lead on this route.
American Airlines arrived on time 90% of the time on this route; Southwest Airlines managed 55%.
Ticking up lately.
DCA–LAS flights arrived on time 79% of the time over the last three months in the data, compared with 73% in the three months before that.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon70%(103 flights)
- Tue75%(101 flights)
- Wed70%(102 flights)
- Thu67%(104 flights)
- Fri68%(102 flights)
- Sat88%(103 flights)
- Sun69%(103 flights)
- 6–9 AM91%(278 flights)
- 9 AM–12 PM89%(121 flights)
- 3–6 PM49%(314 flights)
- 6–9 PM—(5 flights)
Jun 62% → May 77% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 62% | 60 |
| July 2025 | 75% | 60 |
| August 2025 | 69% | 61 |
| September 2025 | 67% | 60 |
| October 2025 | 72% | 61 |
| November 2025 | 70% | 59 |
| December 2025 | 69% | 62 |
| January 2026 | 75% | 57 |
| February 2026 | 73% | 55 |
| March 2026 | 89% | 61 |
| April 2026 | 72% | 60 |
| May 2026 | 77% | 62 |
Same trip, other airports
Keep nerding
Based on 730 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.