LAS to DCA flight delays & on-time performance
Nonstop flights from Harry Reid International Airport to Ronald Reagan Washington National Airport · 2,089 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at LAS or DCA right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Las Vegas (LAS) to Washington (DCA) arrived on time 75% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1% were cancelled, and 7% arrived an hour or more late.
- American Airlines was the most punctual airline here (79% on time); Southwest Airlines was the least (72%).
- Departures scheduled around 8am did best (89% on time); around 9am did worst (66%).
- Saturday was the most reliable day to fly (89% on time) and Monday the least (71%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (40%).
Which airline is most on time from LAS to DCA?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| American Airlines | 79% | 1.4% | 18 min | 8.1% | 364 |
| Southwest Airlines | 72% | 0.5% | 13 min | 5.6% | 364 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am89%63 flights
- 9am66%268 flights
- 11am79%108 flights
- 12pm77%116 flights
- 1pm81%164 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday71%1.9% cancelled
- Tuesday75%1.0% cancelled
- Wednesday71%0.0% cancelled
- Thursday71%0.0% cancelled
- Friday72%0.0% cancelled
- Saturday89%1.0% cancelled
- Sunday79%2.9% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)40%
- Air traffic control & airport congestion29%
- Late-arriving aircraft28%
- Extreme weather3%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather86%
- Air traffic control & airport congestion14%
- Airline (crew, maintenance, cleaning, fueling)0%
- Security0%
LAS to DCA: common questions
- How often are LAS to DCA flights on time?
- 75% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Las Vegas to Washington cancelled?
- 1.0% of scheduled flights were cancelled (7 of 728).
- How long are typical delays?
- Across all flights the average arrival delay was 15 min (early arrivals count as zero). Flights that were late arrived 58 min behind schedule on average, and 6.8% of flights were an hour or more late.
- How long is taxi time at LAS?
- Flights on this route spent 20 min taxiing from the gate to takeoff on average.
Related routes
Return trip: DCA to LAS — 70% on time
More flights from Las Vegas
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: LAS → DCA, nonstop flights by US airlines that report to the DOT. How we calculate this.