BWI to LAS flight delays & on-time performance
Nonstop flights from Baltimore/Washington International Thurgood Marshall Airport to Harry Reid International Airport · 2,106 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at BWI or LAS right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Baltimore (BWI) to Las Vegas (LAS) arrived on time 80% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.8% were cancelled, and 6% arrived an hour or more late.
- Spirit Airlines was the most punctual airline here (89% on time); Southwest Airlines was the least (79%).
- Departures scheduled around 6am did best (92% on time); around 9pm did worst (58%).
- Tuesday was the most reliable day to fly (84% on time) and Friday the least (77%).
- The largest source of delay minutes was late-arriving aircraft (37%).
Which airline is most on time from BWI to LAS?
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 |
|---|---|---|---|---|---|
| Spirit Airlines | 89% | 0.0% | 7 min | 2.0% | 151 |
| Southwest Airlines | 79% | 0.9% | 13 min | 5.9% | 1,638 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am92%343 flights
- 7am91%69 flights
- 8am91%144 flights
- 9am88%112 flights
- 10am85%108 flights
- 11am77%31 flights
- 12pm75%77 flights
- 1pm79%58 flights
- 2pm73%95 flights
- 3pm66%124 flights
- 4pm79%84 flights
- 5pm69%97 flights
- 6pm69%159 flights
- 7pm75%151 flights
- 8pm72%45 flights
- 9pm58%66 flights
- 10pm67%20 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday81%1.5% cancelled
- Tuesday84%0.4% cancelled
- Wednesday81%0.0% cancelled
- Thursday77%0.4% cancelled
- Friday77%0.7% cancelled
- Saturday80%0.5% cancelled
- Sunday77%1.9% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft37%
- Airline (crew, maintenance, cleaning, fueling)36%
- Air traffic control & airport congestion20%
- Extreme weather5%
- Security2%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather79%
- Air traffic control & airport congestion14%
- Airline (crew, maintenance, cleaning, fueling)7%
- Security0%
BWI to LAS: common questions
- How often are BWI to LAS flights on time?
- 80% 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 Baltimore to Las Vegas cancelled?
- 0.8% of scheduled flights were cancelled (14 of 1,789).
- How long are typical delays?
- Across all flights the average arrival delay was 12 min (early arrivals count as zero). Flights that were late arrived 53 min behind schedule on average, and 5.5% of flights were an hour or more late.
- How long is taxi time at BWI?
- Flights on this route spent 15 min taxiing from the gate to takeoff on average.
Related routes
Return trip: LAS to BWI — 79% on time
More flights from Baltimore
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: BWI → LAS, nonstop flights by US airlines that report to the DOT. How we calculate this.