How far is Boerne, TX from Brownsville, TX?

The driving distance from Boerne, TX to Brownsville, TX is about 307.3 miles (494.6 km), with a travel time of about 05h 34m by car.

  • The straight-line flight distance is about 279.4 miles (449.6 km).
  • For a round trip, plan for roughly 11h 09m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Trip Tools

Reverse, save, or send this route

This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.

Reverse Route
Quick Snapshot
Road
307.31 mi
05h 34m
Flight
279.34 mi
449.55 km direct

This drive is better planned with a longer stop or an overnight stay.

Learn Distance

Choose another destination from Boerne.

Flight Distance

Direct air line
279.34 mi
Kilometers
449.55 km
Flight Time
00h 33m

Driving Distance

Road route
307.31 mi
Kilometers
494.57 km
Drive Time
05h 34m

Gas Cost Calculator

Leave and Arrive Planner

Pick a departure time to see your estimated arrival and same-day return window.

Drive time stays fixed at 05h 34m.

Arrival Snapshot
Arrive in Brownsville
Fri, May 29, 11:00 PM CDT
Return by in Boerne
Sat, May 30, 4:35 AM CDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Boerne
2026-05-29T17:26
Arrive Brownsville
Fri, May 29, 11:00 PM CDT
Route Timing
05h 34m
One way by road
Best Departure Window
6:00 AM to 8:00 AM CDT
Leave early for more breathing room
Arrive between
11:35 AM to 1:35 PM CDT

An early departure helps you fit a real stop into the day without turning the return into a late-night drive.

Leave by
5:50 AM CDT
Keeps a same-day return open with about 04h 00m at the destination.
Back in Boerne
9:00 PM CDT
Early departure recommended

You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.

Halfway Point

A useful midpoint for breaks, coffee, or meeting in the middle.

Mid-route stop
Odem
TX

City in San Patricio County, Texas, United States

From Boerne
154 mi
02h 47m
To Brownsville
153.3 mi
02h 47m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
88°F
Friday

Mostly Sunny

Starts
Fri, May 29 6:00 AM CDT
Wind
0 to 5 mph S
Destination
Brownsville Weather
TX
Live fallback forecast
92°F
Friday
Using Cameron Park as the closest live forecast in the Cameron County weather hub.

Mostly Sunny

Starts
Fri, May 29 6:00 AM CDT
Wind
1 to 10 mph ESE

Driving Route Map

The map below follows the saved road route between Boerne and Brownsville.

Turn-by-Turn Driving Directions

Step-by-step road directions between Boerne and Brownsville.

  1. 1

    Start on East Blanco Road

    20 m · 9 sec · East Blanco Road

  2. 2

    Turn left onto North Main Street

    2.2 mi · 4 min · North Main Street

  3. 3

    Turn left

    1534 ft · 28 sec

  4. 4

    Continue on Interstate 10 West

    1887 ft · 32 sec · Interstate 10 West

  5. 5

    Take the ramp slight left

    1628 ft · 40 sec

  6. 6

    Merge slight left

    7 mi · 7 min

  7. 7

    Keep slight right

    17.4 mi · 20 min

  8. 8

    Keep slight right to continue on McDermott Freeway

    1.7 mi · 2 min · McDermott Freeway

  9. 9

    Take the exit slight right toward Santa Rosa Street, Downtown

    2505 ft · 1 min

  10. 10

    Turn straight onto North Pecos-La Trinidad

    804 ft · 16 sec · North Pecos-La Trinidad

  11. 11

    Keep slight right to continue on North Pecos-La Trinidad

    2963 ft · 1 min · North Pecos-La Trinidad

  12. 12

    Turn left onto Dolorosa Street

    2725 ft · 1 min · Dolorosa Street

  13. 13

    Continue on West Market Street

    1893 ft · 42 sec · West Market Street

  14. 14

    Continue on East Market Street

    2143 ft · 41 sec · East Market Street

  15. 15

    Turn right onto Tower of the Americas Way

    957 ft · 21 sec · Tower of the Americas Way

  16. 16

    Take the ramp slight left toward I 37 South, US 281 South

    1374 ft · 34 sec

  17. 17

    Merge slight left onto William J Bordelon Freeway

    1.4 mi · 2 min · William J Bordelon Freeway

  18. 18

    Continue on Lucian Adams Freeway

    125.1 mi · 2 hr 7 min · Lucian Adams Freeway

  19. 19

    Take the exit slight right toward I 69E, US 77: Kingsville, Brownsville

    31.3 mi · 34 min

  20. 20

    Keep slight left to continue on U.S. Highway 77

    61.3 mi · 1 hr 9 min · U.S. Highway 77

  21. 21

    Keep slight left to continue on U.S. Highway 77

    43.7 mi · 47 min · U.S. Highway 77

  22. 22

    Continue on North Expressway

    2.1 mi · 2 min · North Expressway

  23. 23

    Keep slight left to continue on North Expressway

    9 mi · 10 min · North Expressway

  24. 24

    Take the exit slight right toward 12th-14th Street

    1730 ft · 42 sec

  25. 25

    Turn straight onto South Expressway

    101 m · 9 sec · South Expressway

  26. 26

    Turn right onto East 12th Street

    1.2 km · 2 min · East 12th Street

  27. 27

    Turn right onto East Washington Street

    9 m · 1 sec · East Washington Street

  28. 28

    Arrive at your destination

    0 m · 1 sec · East Washington Street

Car Route Details

A richer read on the saved driving route between Boerne and Brownsville.

OSRM road route
Drive Character

Long-distance drive

This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.

Directions
28 steps
8 turns on the saved route
Ramps & Exits
7
2 merges, 5 ramps or exits
Navigation Density
9.1 / 100 mi
Decision points by distance
Main Roads
Lucian Adams Freeway
125 mi · 41%
U.S. Highway 77
105 mi · 34%
I 69E
31.3 mi · 10%
Interstate 10 West
25.2 mi · 8%
North Expressway
11.1 mi · 4%
North Main Street
2.21 mi · 1%
Longest Stretch

Lucian Adams Freeway

Continue on Lucian Adams Freeway

125 mi · 02h 07m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

A longer out-and-back drive

This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.

Drive Time
05h 34m
Long day trip
Same-Day Return
11h 10m
Round-trip wheel time
Road vs Air
+27.9 mi
279.4 mi direct line
Halfway Stop
Odem
02h 47m from Boerne
Leave By
5:50 AM CDT
Early departure recommended
Weather Watch

Mostly Sunny leaving Boerne and Mostly Sunny near Brownsville.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Boerne to Brownsville?

The road trip is about 307.3 miles (494.6 km) and usually takes 05h 34m in normal driving conditions.

Is this a same-day trip or an overnight route?

This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.

What is the halfway point on this route?

Odem is a useful midpoint, sitting about 154 miles from Boerne and 153.3 miles from Brownsville.

How much longer is the road route than the straight-line distance?

The direct path is about 279.4 miles (449.6 km), while the road route adds roughly 27.9 extra miles because roads do not follow the straight air line.

When is the best time to leave for this route?

A good departure window is usually 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 5:50 AM CDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $40.96 one way or $81.93 round trip. Estimated CO2 is about 96.3 kg one way.

What should you check before leaving?

Before you leave, expect Mostly Sunny around Boerne and Mostly Sunny near Brownsville.

Flight Path Map

This map shows the direct air route between Boerne and Brownsville. Straight-line distance: 279.34 mi (449.55 km).

Boerne

#1 Boerne

City in Texas, USA

Population19,066
Coordinates29.7946600, -98.7319700
Altitude430
CountryUnited States
Brownsville

#2 Brownsville

The southernmost city in Texas.

Population183,428
Coordinates25.9017500, -97.4974800
Altitude10
CountryUnited States
Start: Boerne (-98.73197, 29.79466)
End: Brownsville (-97.49748, 25.90175)

Estimated Travel Time

Distance: 495 km by road

SpeedTime
30 mph (48.3 km/h)10h 14m
40 mph (64.37 km/h)07h 40m
50 mph (80.47 km/h)06h 08m
60 mph (96.56 km/h)05h 07m
70 mph (112.65 km/h)04h 23m
80 mph (129 km/h)03h 50m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
10.84 gal
41.05 L · about $40.96
Round trip
$81.93
21.68 gal · 82.1 L
Estimated CO2
96.3 kg one way
Round trip: 192.7 kg / 425 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.78 $40.96 $81.93
Mid-grade $4.25 $46.09 $92.18
Premium $4.59 $49.77 $99.53
Diesel $3.99 $43.28 $86.57

Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.

Prices in Texas · May 29, 2026

There is no time difference between Boerne and Brownsville. The current time is 17:26:28.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.