Route reliability record
BWI→DAL
Baltimore to Dallas
- Flights
- 1,794
- Period
- September 2025 to August 2026
- Distance
- 1,209 mi
- Carriers
- 1
This route sits in the middle of the pack with a B. Close to three flights in four arrive on time by the DOT's definition, 2 points worse than the national rate of 77.3%. The late ones land roughly 55 minutes behind schedule. That rests on 1,794 BWI to DAL flights, with a median arrival 4 minutes early.
Best time to fly BWI to DAL: a 5am–8am departure, ideally on a Tuesday. Flights in that window arrived on time 87.5% of the time and Tuesday flights 81.4%, against 75.8% for the route overall.
The US average over the same twelve months is 77.3%, so there is little to separate this route from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
75.8%
Arrivals under 15 minutes late, of 1,750 completed flights
Avg delay
53 min
Across delayed arrivals only, not all flights
Cancelled
2.06%
National rate is 1.89%
Best carrier
Southwest
75.8% on time across 1,794 flights
These figures cover 1,794 flights between September 2025 and August 2026. The median arrival is 4 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
Which airline is most reliable on BWI to DAL
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 |
|---|---|---|---|---|---|
| Southwest Airlines | 1,794 | 75.8% | 53 min | 2.06% | B |
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Best ways to make this trip
The most reliable ways to fly Baltimore to Dallas
Every airline on this route and on the routes between nearby airports, ranked by how often a scheduled flight actually operated and arrived on time. 4 of the top 5 use a different airport at one end.
| Option | Airline | Success | On time | Cancelled | Best departure | Most punctual flight |
|---|---|---|---|---|---|---|
| 1. IAD → DFWWashington to Dallas-Fort Worth | United Airlines | 79.6% | 80.0% | 0.54% | 8am–11am, Tue | UA 2116 18:00 |
| 2. DCA → DFWWashington to Dallas-Fort Worth | American Airlines | 76.6% | 78.8% | 2.85% | 5am–8am, Tue | AA 1978 07:45 |
| 3. BWI → DALBaltimore to Dallas | Southwest Airlines | 74.2% | 75.8% | 2.06% | 5am–8am, Tue | — |
| 4. IAD → DFWWashington to Dallas-Fort Worth | American Airlines | 72.6% | 74.4% | 2.47% | 5am–8am, Wed | AA 2617 06:00 |
| 5. BWI → DFWBaltimore to Dallas-Fort Worth | American Airlines | 71.5% | 73.7% | 3.00% | 5am–8am, Thu | AA 1403 06:00 |
Success is the share of scheduled flights that operated and arrived less than 15 minutes late, so a cancelled flight counts against it. “(route)” means the best time comes from every carrier on the route rather than this airline alone.
Departure window
The best time of day to leave
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 25 points, against half a point between the best and worst carrier.
- 5am–8am341 flights87.5%
- 8am–11am380 flights86.0%
- 11am–2pm181 flights77.5%
- 2pm–5pm328 flights72.5%
- 5pm–8pm366 flights62.7%
- 8pm–5am198 flights63.4%
Scale runs 55% to 95%.
The 5pm–8pm window is where this operation falls apart: 62.7% on time, against 87.5% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 8am–11am window is the busiest, with 380 flights scheduled in it.
Explore
Filter BWI to DAL by airline, time, month and day
Pick a breakdown and a carrier. The dashed mark on each row is the same slice for every US flight.
On BWI to DAL, the best departure window is 5am–8am at 87.5% on time and the worst is 5pm–8pm at 62.7%, a wide gap of 24.8 points. All US flights leaving 5am–8am ran 89.3%.
- 5–8am87.5%
- 8–11am86.0%
- 11am–2pm77.5%
- 2–5pm72.5%
- 5–8pm62.7%
- 8pm–5am63.4%
best all US flightsScale 55% to 95%.
Across the year
When delays peak on this route
This route's year swings by 23 points from best month to worst, which is wide. An annual average tells you very little about the week you are actually flying, so read the strip rather than the headline if your dates are fixed.
June is the worst month at 62.7% on time, 23 points below January, the best at 85.5%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. December was the busiest month here, with 165 flights.
Across the week, Tuesday is the strongest day at 81.4% on time and Sunday the weakest at 69.9%, a spread of 12 points.
Delay causes
Why this route gets delayed
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 22,000 reported delay minutes.
- 35%Late-arriving aircraft
- 34%Carrier
- 27%National Airspace System
- 3%Extreme weather
- 1%Security
35% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 22,000 reported delay minutes here, that single category outweighs weather by 11 to one. The split is drawn from 22,391 reported delay minutes.
The largest share of delay minutes, 34%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 7,689 of the 22,000 delay minutes reported here.
Cancellations sit at 2.06% against a national 1.89%, which is ordinary. Diversions add another 0.39%.
Connections and stage length
What a delay here actually costs
6.3% 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 roughly 55 minutes, which a normal layover absorbs.
The 1,209 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The return leg runs 73.8% on time across 1,828 flights, within 2 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
The sample behind these figures is 1,794 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
Work out the risk of missing a connection in DAL after this flight
What to do with this
Booking this route
Put together: the calendar is the biggest lever here, not the carrier or the hour. January runs 85.5% on time and June 62.7%, a swing of 23 points. If the dates move at all, move them out of June before you think about anything else. 1,750 completed flights over 12 months sit behind that.
Common questions
BWI to DAL questions
How often is BWI to DAL delayed?
About one flight in four arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 24.2% of the 1,794 flights in this analysis, against 22.7% nationally. Delayed flights are late by roughly 55 minutes on average.
How reliable is BWI to DAL compared with the rest of the country?
75.8% of flights arrive on time here against a national 77.3%, a difference of 2 points against it. That is worth a B on this site's grading scale.
What time of day has the fewest delays on BWI to DAL?
The 5am–8am departure window is the strongest at 87.5% on time. The 5pm–8pm window is the weakest at 62.7%, 25 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.
How bad are June delays on BWI to DAL?
June is the weakest month at 62.7% on time, compared with 85.5% in January. Across the year that is 23 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.
Related
Where to go next
- DAL to BWI — the return legseparate record
- Baltimore/Washington International Thurgood Marshall (BWI) delay statistics
- Dallas Love Field (DAL) delay statistics
- BWI to ATL, a related route79.9%
- HOU to DAL, a related route81.6%
- BWI to MCO, a related route75.5%
- Southwest Airlines on-time record75.8%
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.05 million flight records
Direction matters. BWI to DAL and DAL to BWI are scored separately because they are separate operations, with different departure banks and different aircraft. Compare the return leg.
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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.