Route reliability record
SAV→BWI
Savannah to Baltimore
- Flights
- 987
- Period
- September 2025 to August 2026
- Distance
- 548 mi
- Carriers
- 1
This route lands a B, 4 points better than the national rate of 77.3%. Roughly one flight in five arrives 15 minutes late or worse, and those flights are late by roughly 55 minutes on average. That rests on 987 SAV to BWI flights, with a median arrival 7 minutes early.
Best time to fly SAV to BWI: a 5am–8am departure, ideally on a Tuesday. Flights in that window arrived on time 94.6% of the time and Tuesday flights 90.6%, against 81.7% for the route overall.
Set against the rest of the country, this route's record is 4 points better than the US average of 77.3%. That gap is worth roughly 44 fewer late arrivals for every thousand flights.
Key figures
On time
81.7%
Arrivals under 15 minutes late, of 967 completed flights
Avg delay
54 min
Across delayed arrivals only, not all flights
Cancelled
1.52%
National rate is 1.89%
Best carrier
Southwest
81.7% on time across 987 flights
These figures cover 987 flights between September 2025 and August 2026. The median arrival is 7 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 SAV to BWI
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 | 987 | 81.7% | 54 min | 1.52% | B |
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Best ways to make this trip
The most reliable ways to fly Savannah to Baltimore
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. 1 of the top 2 use a different airport at one end.
| Option | Airline | Success | On time | Cancelled | Best departure | Most punctual flight |
|---|---|---|---|---|---|---|
| 1. SAV → BWISavannah to Baltimore | Southwest Airlines | 80.5% | 81.7% | 1.52% | 5am–8am, Tue | — |
| 2. SAV → DCASavannah to Washington | PSA Airlines | 74.6% | 78.6% | 5.05% | 5am–8am, Sat (route) | OH 5146 07:11 |
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 43 points, against half a point between the best and worst carrier.
- 5am–8am206 flights94.6%
- 8am–11am167 flights93.3%
- 11am–2pm156 flights78.7%
- 2pm–5pm101 flights75.8%
- 5pm–8pm298 flights75.7%
- 8pm–5am59 flights51.7%
Scale runs 45% to 100%.
The 8pm–5am window is where this operation falls apart: 51.7% on time, against 94.6% 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 5pm–8pm window is the busiest, with 298 flights scheduled in it.
Explore
Filter SAV to BWI 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 SAV to BWI, the best departure window is 5am–8am at 94.6% on time and the worst is 8pm–5am at 51.7%, a wide gap of 42.9 points. All US flights leaving 5am–8am ran 89.3%.
- 5–8am94.6%
- 8–11am93.3%
- 11am–2pm78.7%
- 2–5pm75.8%
- 5–8pm75.7%
- 8pm–5am51.7%
best all US flightsScale 45% to 100%.
Across the year
When delays peak on this route
This route's year swings by 19 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.
July is the worst month at 72.2% on time, 19 points below May, the best at 90.7%. 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. May was the busiest month here, with 97 flights.
Across the week, Tuesday is the strongest day at 90.6% on time and Sunday the weakest at 72.6%, a spread of 18 points.
Delay causes
Why this route gets delayed
Late-arriving aircraft accounts for 51% of the 9,539 delay minutes carriers reported here, and the remaining four split what is left.
- 51%Late-arriving aircraft
- 28%Carrier
- 16%National Airspace System
- 5%Extreme weather
51% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 9,539 reported delay minutes here, that single category outweighs weather by 11 to one. The split is drawn from 9,539 reported delay minutes.
The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 94.6% on time here.
Cancellations sit at 1.52% against a national 1.89%, which is ordinary. Diversions add another 0.51%.
Connections and stage length
What a delay here actually costs
5.1% 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 548 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 80.3% on time across 988 flights, within about a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
One caution: this is a thin sample. 987 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.
Work out the risk of missing a connection in BWI after this flight
What to do with this
Booking this route
Put together: treat all of this as provisional. 987 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 81.7% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 967 completed flights over 12 months sit behind that.
Common questions
SAV to BWI questions
How often is SAV to BWI delayed?
Roughly one flight in five arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 18.3% of the 987 flights in this analysis, against 22.7% nationally. Delayed flights are late by roughly 55 minutes on average.
How reliable is SAV to BWI compared with the rest of the country?
81.7% of flights arrive on time here against a national 77.3%, a difference of 4 points in its favour. That is worth a B on this site's grading scale.
What time of day has the fewest delays on SAV to BWI?
The 5am–8am departure window is the strongest at 94.6% on time. The 8pm–5am window is the weakest at 51.7%, 43 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 July delays on SAV to BWI?
July is the weakest month at 72.2% on time, compared with 90.7% in May. Across the year that is 19 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
- BWI to SAV — the return legseparate record
- Baltimore/Washington International Thurgood Marshall (BWI) delay statistics
- SAV to ATL, a related route87.1%
- ATL to BWI, a related route75.2%
- SAV to CLT, a related route86.0%
- Southwest Airlines on-time record81.7%
- 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. SAV to BWI and BWI to SAV 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.