Carrier route record
NKBWI→LAS
Spirit Airlines · Baltimore to Las Vegas
- Flights
- 115
- Period
- September 2025 to August 2026
- Share of route
- 7%
- Carriers
- 2
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Spirit Airlines.
Spirit on BWI to LAS earns an A+. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 11 points better than the national rate of 77.3%. When something does go wrong the average delay runs about an hour. That rests on 115 flights, with a median arrival 11 minutes early.
Set against the rest of the country, Spirit's BWI to LAS record is 11 points better than the US average of 77.3%. That gap is worth roughly 114 fewer late arrivals for every thousand flights.
Key figures
On time
88.7%
Arrivals under 15 minutes late, of 115 completed flights
Avg delay
62 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
Whole route
79.0%
Every carrier on BWI to LAS, 1,739 flights
These figures cover 115 flights between September 2025 and August 2026. The median arrival is 11 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Carrier by carrier
Spirit against every carrier on BWI to LAS
Spirit flew 115 of the 1,739 flights on BWI to LAS, about 7% of it. Its 88.7% on time is 10 points better than the route as a whole, which runs 79.0%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from Spirit at 88.7% to Southwest at 78.3%.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Spirit Airlines (this page)thin sample | 115 | 88.7% | 62 min | 0.00% | A+ |
| Southwest Airlines | 1,624 | 78.3% | 54 min | 0.99% | B+ |
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Departure window
When Spirit runs best on this route
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 115 flights.
- 5am–8am17 flights—
- 8am–11am56 flights87.5%
- 11am–2pm—
- 2pm–5pm—
- 5pm–8pm42 flights85.7%
- 8pm–5am—
Scale runs 75% to 95%. Rows with fewer than 30 flights show a dash.
The 8am–11am window is the strongest at 87.5% on time. The full set of windows spans 2 points.
Across the year
Spirit on BWI to LAS through the year
- Jul–Sep 202548 flights85.4%
- Oct–Dec 202567 flights91.0%
Scale runs 75% to 95%.
Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 88.7% on time across 115 flights.
Split by quarter, Spirit on BWI to LAS logged 48 flights in Jul–Sep 2025 and 67 flights in Oct–Dec 2025. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 88.7% annual figure is the one to use.
Arrival by arrival
How late Spirit on BWI to LAS runs when it is late
Spirit on BWI to LAS often beats the schedule: 51 of 115 completed flights, 44%, arrived 15 minutes or more early. The 13 late arrivals split 4 under half an hour, 6 between 30 and 60 minutes, and 3 an hour or more.
- 15+ min early51 flights44.3%
- Within 15 min51 flights44.3%
- 15–29 min late4 flights3.5%
- 30–59 min late6 flights5.2%
- 1–2 hours late1 flights0.9%
- 2+ hours late2 flights1.7%
Scale runs 0% to 100%.
Share of 115 completed flights by arrival against schedule.
A late pushback is often recovered here: of 21 departures that left 15 minutes late or more, 9 still arrived on time. Only 1 left on time and still arrived late.
The worst days
Worst days for Spirit on BWI to LAS
The latest arrival of the period was on 22 September 2025, 4 hours 24 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. Three of the five worst days fell in September 2025.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 22 September 2025 | 4 hours 24 minutes | Late-arriving aircraft |
| 8 September 2025 | 2 hours 24 minutes | Late-arriving aircraft |
| 16 October 2025 | 1 hour 24 minutes | Carrier |
| 17 October 2025 | 52 minutes | Late-arriving aircraft |
| 15 September 2025 | 48 minutes | Late-arriving aircraft |
Delay causes
Why Spirit runs late on this route
Late-arriving aircraft accounts for 74% of the 801 delay minutes carriers reported here, and the remaining four split what is left.
- 74%Late-arriving aircraft
- 15%National Airspace System
- 11%Carrier
74% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 801 reported delay minutes here, that single category outweighs weather by 74 to one. The split is drawn from 801 reported delay minutes.
The practical consequence: the 8am–11am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 87.5% on time here.
Cancellations are rare at 0.00%, below the national 1.89% and low enough to earn the plus on the grade. Almost no flights are called off; the risk here is arriving late, not not arriving.
Connections and stage length
What a delay here costs
Badly late arrivals are rare here: only 2.6% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
At 2,106 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.
The return leg is a different operation and performs like one: it runs 82.3% on time across 113 flights, 6 points below this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 6 points of difference.
One caution: this is a thin sample. 115 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking Spirit on BWI to LAS
Put together: treat all of this as provisional. 115 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 88.7% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 115 completed flights over 12 months sit behind that.
Related
Where to go next
- BWI to LAS, every carrier
- Spirit on LAS to BWI, the return leg
- Southwest Airlines on BWI to LAS78.3%
- Spirit Airlines network-wide record
- Baltimore/Washington International Thurgood Marshall (BWI) delay statistics
- Harry Reid International (LAS) delay statistics
- Why the first flight of the morning is statistically safest
- How to read this site: grades, sample sizes, and honest caveats
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.