Carrier route record
NKLAS→BWI
Spirit Airlines · Las Vegas to Baltimore
- Flights
- 113
- Period
- September 2025 to August 2026
- Share of route
- 6%
- Carriers
- 2
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Spirit Airlines.
Spirit on LAS to BWI lands a B+, 5 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by close to two hours on average. That rests on 113 flights, with a median arrival 9 minutes early.
Set against the rest of the country, Spirit's LAS to BWI record is 5 points better than the US average of 77.3%. That gap is worth roughly 50 fewer late arrivals for every thousand flights.
Key figures
On time
82.3%
Arrivals under 15 minutes late, of 113 completed flights
Avg delay
101 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
Whole route
78.9%
Every carrier on LAS to BWI, 1,743 flights
These figures cover 113 flights between September 2025 and August 2026. The median arrival is 9 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 LAS to BWI
Spirit flew 113 of the 1,743 flights on LAS to BWI, about 6% of it. Its 82.3% on time is 3 points better than the route as a whole, which runs 78.9%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from Spirit at 82.3% to Southwest at 78.6%.
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 | 113 | 82.3% | 101 min | 0.00% | B+ |
| Southwest Airlines | 1,630 | 78.6% | 45 min | 1.10% | 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 113 flights.
- 5am–8am—
- 8am–11am42 flights83.3%
- 11am–2pm2 flights—
- 2pm–5pm2 flights—
- 5pm–8pm2 flights—
- 8pm–5am65 flights81.5%
Scale runs 75% to 90%. Rows with fewer than 30 flights show a dash.
The 8am–11am window is the strongest at 83.3% on time. The full set of windows spans 2 points.
Across the year
Spirit on LAS to BWI through the year
- Jul–Sep 202547 flights74.5%
- Oct–Dec 202565 flights87.7%
- Apr–Jun 20261 flights—
Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.
Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 82.3% on time across 113 flights.
Split by quarter, Spirit on LAS to BWI logged 47 flights in Jul–Sep 2025, 65 flights in Oct–Dec 2025 and 1 flights in Apr–Jun 2026. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 82.3% annual figure is the one to use.
Arrival by arrival
How late Spirit on LAS to BWI runs when it is late
Spirit on LAS to BWI often beats the schedule: 37 of 113 completed flights, 33%, arrived 15 minutes or more early. The 20 late arrivals split 9 under half an hour, 4 between 30 and 60 minutes, and 7 an hour or more.
- 15+ min early37 flights32.7%
- Within 15 min56 flights49.6%
- 15–29 min late9 flights8.0%
- 30–59 min late4 flights3.5%
- 1–2 hours late2 flights1.8%
- 2+ hours late5 flights4.4%
Scale runs 0% to 100%.
Share of 113 completed flights by arrival against schedule.
4 of 22 late departures made up the time and arrived on time, 18% of them. Only 2 left on time and still arrived late.
The worst days
Worst days for Spirit on LAS to BWI
The latest arrival of the period was on 29 September 2025, 12 hours 12 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Four of the five worst days fell in September 2025.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 29 September 2025 | 12 hours 12 minutes | Carrier |
| 22 September 2025 | 3 hours 42 minutes | Late-arriving aircraft |
| 8 September 2025 | 3 hours 6 minutes | Carrier |
| 26 September 2025 | 2 hours 53 minutes | Carrier |
| 5 October 2025 | 2 hours 12 minutes | Late-arriving aircraft |
Delay causes
Why Spirit runs late on this route
Carrier accounts for 64% of the 2,023 delay minutes carriers reported here, and the remaining four split what is left.
- 64%Carrier
- 27%Late-arriving aircraft
- 8%National Airspace System
- 1%Extreme weather
The largest share of delay minutes, 64%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,299 of the 2,023 delay minutes reported here. The split is drawn from 2,023 reported delay minutes.
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
6.2% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last close to two hours, which a normal layover absorbs.
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 88.7% on time across 115 flights, 6 points above 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. 113 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 LAS to BWI
Put together: treat all of this as provisional. 113 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 82.3% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 113 completed flights over 12 months sit behind that.
Related
Where to go next
- LAS to BWI, every carrier
- Spirit on BWI to LAS, the return leg
- Southwest Airlines on LAS to BWI78.6%
- Spirit Airlines network-wide record
- Harry Reid International (LAS) delay statistics
- Baltimore/Washington International Thurgood Marshall (BWI) delay statistics
- How to read this site: grades, sample sizes, and honest caveats
- Denver, Salt Lake City, Phoenix and Las Vegas: the Mountain West hubs
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.