Route profile
BWI→LAS
Flight reliability, delays and best times to fly from Baltimore to Las Vegas, 2,106 miles.
Right now
Aviation weather is not currently a factor.
Aviation weather is not currently a factor.
Route reliability
July 2023 – July 2026
Better than 55% of comparable major US routes (4,598 compared)
Calculated from 5,870 flights. How this is calculated · What counts as on time
BWI → LAS arrives on time 77.1% of the time; the return trip, LAS → BWI, arrives on time 79.0% of the time.
BWI → LAS spends 21.3 minutes on the ground on a 2,106-mile trip: 15.0 minutes from pushback to wheels-up at BWI and 6.3 minutes from touchdown to gate at LAS.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What stands out
This route has stayed remarkably steady year over year, a smaller swing than 97% of 5,368 comparable routes.
79.6% on time over the most recent 12 months (2025-08 to 2026-07), against 79.4% in the 12 months before (2024-08 to 2025-07), virtually unchanged.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Ranked against every other route with the same kind of figure and at least 5,368 in the comparison.
What sets this route apart
Where BWI to LAS differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
BWI to LAS struggles most at 9 PM: 56.3% of its flights scheduled then arrive on time, 20.7 points behind the 77.0% on routes of similar length at the same hour. Against all other routes the gap is 13.2 points.
BWI to LAS is at its best against routes of similar length for flights scheduled at 10 AM: 85.7% arrive on time, 6.4 points ahead of the 79.3% those routes manage at that hour.
In July, BWI to LAS runs 7.9 points below routes of similar length, 63.0% on time to 70.9%. Against all other routes the gap is 6.7 points.
November is kinder to BWI to LAS than to routes of similar length: 88.4% on time against 83.9%, 4.5 points better. Against all other routes the gap is 5 points.
Spirit Airlines does better on BWI to LAS than on its routes of similar length: 81.7% on time here, 77.2% there, 4.5 points apart. Against all other routes the gap is 6.5 points.
BWI to LAS against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Hour: 9 PM departures | 56.3% | routes of similar length | 77.0% | −20.7 pts | 382 here, 42,508 there |
| Hour: 10 AM departures | 85.7% | routes of similar length | 79.3% | +6.4 pts | 357 here, 52,948 there |
| Month: July | 63.0% | routes of similar length | 70.9% | −7.9 pts | 611 here, 120,853 there |
| Month: November | 88.4% | routes of similar length | 83.9% | +4.5 pts | 465 here, 77,478 there |
| Airline: Spirit Airlines | 81.7% | routes of similar length | 77.2% | +4.5 pts | 1,109 here, 42,449 there |
Each comparison pools the flights of other routes, with this route’s own left out. Similar length means within 15% of this route’s 2,106 miles, with at least 5 such routes. A bucket is set against the most comparable group that has enough flights: similar length, then the same origin (at least 3 routes), then all other routes. Hours, weekdays and months appear only where both sides have 120 completed flights, and airlines where both have 600. The gap must be at least 2 points and 2 standard errors, and only the largest gap each way is kept per measure. These are differences in the flights counted, not causes.
Why BWI → LAS flights are cancelled
July 2023 – July 2026
BWI → LAS cancelled 51 of 5,870 scheduled flights — about 1 in every 115. The reason filed most often was extreme weather, 66.7% of the cancellations coded on this route — about 1 in every 173 scheduled flights.
Share of cancellations
Of 51 cancelled departures carrying a reason code.
What each reason means
Conditions the carrier judged severe enough to stop the flight: a blizzard, a hurricane, a line of thunderstorms.
34 cancellations, 66.7% of the total.
Crew, maintenance, aircraft cleaning, baggage or fueling: what BTS counts as within the carrier’s own control.
11 cancellations, 21.6% of the total.
Airport capacity, air traffic control flow programs, heavy traffic and ordinary bad weather. A system decision, not the airline’s.
6 cancellations, 11.8% of the total.
A terminal evacuation, a security breach, screening equipment failure, or screening queues over 29 minutes.
0 cancellations, 0.0% of the total.
Reason codes are the operating airline’s own filing with US DOT, not an independent finding of fault. With only one or two carriers on the route, the split mostly reflects how they file. Ordinary bad weather is filed under air traffic, so weather’s full share is larger than its bar.
51 coded cancellations were recorded on BWI → LAS; the section appears from 50.
When it goes wrong
July 2023 – July 2026
43 min late
against a median of 4 min early
Percentiles over 5,870 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at LAS after arriving from BWI.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 41% | Likely to miss |
| 45 min | 22% | High risk |
| 60 min | 14% | Some risk |
| 90 min | 6.8% | Some risk |
| 120 min | 3.8% | Low risk |
This is one leg of a connection. Gate changes and the next flight's own schedule matter too. And a connection can fail before delay is even the question — this route cancels 0.87% of the time and diverts 0.29% of the time, which a late arrival never shows up in.
Chance of missing is the share of 5,802 arrivals on this route that landed later than the connection time less 30 minutes to reach the next gate.
The worst tenth of arrivals on this route land at least 43 minutes late (90th-percentile gate arrival delay), over 5,870 operations.
Any other layover length: connection checker.
Best time to fly
BWI → LAS flights departing 5–9 AM arrived on time 90.2% of the time, against 56.9% for 9 PM–5 AM departures, a gap of 33.3 percentage points.
By departure window
By departure hour
- 12 AM to 5 AM: too few flights to score
- 6 AM: 90.4% on time from 1,045 flights
- 7 AM: 90.3% on time from 248 flights
- 8 AM: 89.4% on time from 473 flights
- 9 AM: 86.9% on time from 262 flights
- 10 AM: 85.7% on time from 361 flights
- 11 AM: 74.5% on time from 244 flights
- 12 PM: 78.6% on time from 216 flights
- 1 PM: 78.9% on time from 178 flights
- 2 PM: 73.4% on time from 403 flights
- 3 PM: 65.2% on time from 325 flights
- 4 PM: 76.3% on time from 251 flights
- 5 PM: 64.0% on time from 309 flights
- 6 PM: 67.7% on time from 447 flights
- 7 PM: 66.1% on time from 395 flights
- 8 PM: 67.8% on time from 272 flights
- 9 PM: 56.3% on time from 391 flights
- 10 PM to 11 PM: too few flights to score
Why BWI → LAS runs late
July 2023 – July 2026
crew, maintenance, boarding and fueling, all within the carrier’s control
the inbound aircraft was late, so this flight started late
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for BWI → LAS. Only delays of 15 minutes or more are attributed. What the five causes mean
Airlines on this route
Carriers with at least 200 flights, by the airline that operated each one.
| Carrier | Flights | On time | Cancelled | Median delay | Severe |
|---|---|---|---|---|---|
| Southwest Airlines | 4,750 | 76.0% | 0.88% | -3 min | 6.9% |
| Spirit Airlines | 1,120 | 81.7% | 0.80% | -10 min | 7.4% |
Southwest Airlines flew 80.9% of the 5,870 flights listed.
Spirit Airlines arrived on time 5.7 percentage points more often than Southwest Airlines on this route.
Weekly and seasonal patterns
By day of week
Tuesday is historically the most reliable day and Friday the least, a gap of 6.4 percentage points.
By month
- Jan: 76.3%
- Feb: 79.9%
- Mar: 78.4%
- Apr: 75.1%
- May: 76.3%
- Jun: 72.7%
- Jul: 63.0%
- Aug: 74.4%
- Sep: 80.6%
- Oct: 84.3%
- Nov: 88.4%
- Dec: 79.5%
July is historically the weakest month and November the strongest, a spread of 25.4 percentage points.
Reliability over time
July 2023 – July 2026
- July 2023: 53.5% from 128 flights
- August 2023: 61.8% from 128 flights
- September 2023: 77.6% from 145 flights
- October 2023: 69.7% from 142 flights
- November 2023: 89.1% from 147 flights
- December 2023: 89.5% from 154 flights
- January 2024: 74.1% from 143 flights
- February 2024: 76.9% from 122 flights
- March 2024: 75.2% from 145 flights
- April 2024: 73.3% from 166 flights
- May 2024: 65.3% from 174 flights
- June 2024: 74.1% from 174 flights
- July 2024: 58.9% from 180 flights
- August 2024: 72.8% from 206 flights
- September 2024: 81.5% from 195 flights
- October 2024: 93.3% from 210 flights
- November 2024: 87.7% from 163 flights
- December 2024: 78.2% from 156 flights
- January 2025: 79.9% from 155 flights
- February 2025: 78.3% from 167 flights
- March 2025: 79.1% from 172 flights
- April 2025: 76.5% from 187 flights
- May 2025: 80.0% from 177 flights
- June 2025: 77.2% from 174 flights
- July 2025: 66.3% from 171 flights
- August 2025: 86.3% from 160 flights
- September 2025: 82.0% from 168 flights
- October 2025: 85.5% from 186 flights
- November 2025: 88.4% from 156 flights
- December 2025: 70.7% from 152 flights
- January 2026: 74.6% from 128 flights
- February 2026: too few flights to score (113)
- March 2026: 80.9% from 144 flights
- April 2026: 75.2% from 145 flights
- May 2026: 84.9% from 149 flights
- June 2026: 65.5% from 139 flights
- July 2026: 72.6% from 149 flights
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 79.6% against 79.4% in the 12 months before — broadly unchanged.
Data and methodology
Calculated by FlyerIntel from 5,870 BWI → LAS flight records from the US DOT Bureau of Transportation Statistics, covering July 2023 – July 2026. Late means 15 or more minutes past scheduled arrival; cancelled and diverted flights are left out of on-time rates.
Full methodology · Data sources · Report a problem
Related research: How Long a Layover Needs to Be · Two Airlines on One Route · Best Time of Day to Fly From Major US Airports
Analysis last recomputed