Texas
Distance from Laredo to San Antonio
Straight-line distance
143.9mi
Laredo, TX and San Antonio, TX are 143.9 miles (231.6 km) apart in a straight line. From Laredo, the shortest path starts out heading NNE (24°).
- kilometers
- 231.6
- nautical miles
- 125.0
- heading from Laredo
- 24° NNE
- heading from San Antonio
- 204° SSW
Orange line: great-circle path · ring: midpoint · thin lines: county borders
How far Laredo is from San Antonio
The great-circle distance between the Census internal points of Laredo and San Antonio is 143.9 miles, 231.6 km or 125.0 nautical miles. That is the shortest path over the Earth's surface, computed with the haversine formula on a sphere with the mean Earth radius, 6,371.0 km. A course held on one compass bearing (a rhumb line) would be 143.9 miles, practically the same at this range.
Measurements
- Miles
- 143.9
- Kilometers
- 231.6
- Nautical miles
- 125.0
- Bearing from Laredo
- 23.8° NNE
- Bearing arriving at San Antonio
- 24.2°
- Bearing from San Antonio
- 204.2° SSW
Halfway between Laredo and San Antonio
The great-circle midpoint is at 28.512451, -99.011250 (28°30'44.83"N 99°00'40.50"W). The nearest incorporated place of 1,000 or more people is Cotulla, TX, with 3,661 residents, 14.7 miles from the midpoint. To find towns near the midpoint of any two places, use the halfway tool.
Time zones and daylight
Both use America/Chicago, so there is no time difference. On June 21, Laredo gets 13 h 53 min of daylight and San Antonio 14 h 02 min; on December 21, 10 h 24 min and 10 h 15 min. San Antonio is 1.90° farther north, so it has the longer summer days and the shorter winter ones.
Population compared
San Antonio has 5.8 times the population of Laredo. From July 2020 to July 2024, Laredo changed by +2.3% and San Antonio by +6.1%. Both are in Texas.
- 01Laredo, TX261,260 (+2.3%)
- 02San Antonio, TX1,526,656 (+6.1%)
Questions people ask
How far is Laredo from San Antonio?
143.9 miles, 231.6 km or 125.0 nautical miles along the great circle between the two Census internal points. Road distance is longer.
Which direction is San Antonio from Laredo?
NNE. The great-circle path leaves Laredo on a bearing of 23.8° and arrives at San Antonio on 24.2°. The return trip starts on 204.2°.
What is halfway between Laredo and San Antonio?
The midpoint is at 28.512451, -99.011250. The nearest incorporated place of 1,000+ is Cotulla, TX, 14.7 miles from it.
Is there a time difference between Laredo and San Antonio?
Both use America/Chicago, so there is no time difference.
Which is bigger, Laredo or San Antonio?
San Antonio, with 1,526,656 residents in July 2024 against 261,260 for Laredo, 5.8 times as many.
Sources and data as of
Data as of: Census 2024 Gazetteer internal points and Vintage 2024 estimates; time zones from Open-Meteo.
- 01Census 2024 Gazetteer, places
- 02Census Vintage 2024 subcounty population estimates
- 03SunCalc library (Vladimir Agafonkin), algorithms after Jean Meeus
- 04IANA time zone database (clock times and daylight saving rules)
How every number is computed: methodology. Spotted a wrong figure? Report an error.