Trip from Killeen, TX to Harlingen, TX

Drive Time

6h 55m

Distance

371.9 mi

599 km

Drive Score

8/10

Great drive

Same Day?

Yes, doable

Fuel Cost

$57

one way

Best Time Drive vs Fly

Google Maps Waze Apple Maps

Download GPX

Trip Overview

The drive from Killeen, TX to Harlingen, TX covers 371.9 miles and takes about 6h 55m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.

The route leans on East Veterans Memorial Boulevard, South Fort Hood Street, Interstate 35 for much of the mileage, and the overall profile is turn-heavy local drive. At current regular gas prices, budget about $56.81 one way before food or hotel costs.

Trip Pace

Same-day drive is realistic

A same-day return is possible, but it will make for a full day on the road.

Break Rhythm

1 planned break

Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.

Midpoint

185.9 miles from Killeen, TX

A natural place for your longest stop of the day , about 3h 27m into the drive .

Drive Character

Expect a 6h 55m drive with frequent turns across 371.9 miles of local and secondary roads.

This route has more turning and local-road decision points than a simple highway run.

There are about 36 navigation steps in the underlying route data, so the final approach matters more than the middle miles.

East Veterans Memorial Boulevard is one of the defining roads on this drive.

How Hard Is This Drive?

Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. There are only a few real navigation decisions along the way.

Route Complexity 3/10

Easy - simple navigation with a manageable amount of wheel time

The route itself is not hard, but at 6h 55m, endurance matters. Plan breaks every 2-3 hours. The 0 decision points are all manageable with basic attention.

Where does it get tricky?

This route does not have any notably tricky sections. Most of the drive from Killeen, TX to Harlingen, TX is straightforward, with well-signed roads and simple exits.

Main Roads

Road	Distance	Duration
East Veterans Memorial Boulevard	Unavailable	Refreshing
South Fort Hood Street	Unavailable	Refreshing
Interstate 35	Unavailable	Refreshing
TX 130	Unavailable	Refreshing
US 183 South	Unavailable	Refreshing
Highway 183	Unavailable	Refreshing
North Colorado Street	Unavailable	Refreshing
US 183	Unavailable	Refreshing

Per-road distance and duration are being refreshed from OSRM for this route.

Longest stretch: East Veterans Memorial Boulevard — detailed segment metrics are refreshing.

Turn-by-Turn Driving Directions

Step-by-step road directions between Killeen, TX and Harlingen, TX.

Start on the route

75 ft · 11 sec · the route

Turn left

82 ft · 8 sec

Turn right onto East Veterans Memorial Boulevard

0.9 mi · 1 min · East Veterans Memorial Boulevard

Turn left onto South Fort Hood Street

34 mi · 37 min · South Fort Hood Street

Take the exit slight right

0.2 mi · 17 sec

Continue on North Interstate 35

0.2 mi · 16 sec · North Interstate 35

Take the ramp straight toward TX 130 Toll South: San Antonio

0.2 mi · 21 sec · TX 130 Toll South: San Antonio

Continue straight

59 mi · 54 min

Take the exit slight right toward US 183 South: Lockhart

0.2 mi · 30 sec · US 183 South: Lockhart

Continue on United States Highway 183

0.5 mi · 35 sec · United States Highway 183

Continue on North Colorado Street

4.9 mi · 8 min · North Colorado Street

Continue on US 183

10 mi · 11 min · US 183

Continue on North Magnolia Avenue

4.2 mi · 6 min · North Magnolia Avenue

Continue straight

51 mi · 56 min

Turn slight left onto Farm-to-Market Road 792

8.4 mi · 10 min · Farm-to-Market Road 792

Continue on East Main Street

0.8 mi · 1 min · East Main Street

Turn left onto South Sunset Strip Drive

1.2 mi · 1 min · South Sunset Strip Drive

Continue on South US Highway 181

40 mi · 45 min · South US Highway 181

Continue on North 8th Street

0.8 mi · 56 sec · North 8th Street

Continue on US Highway 181 South

16 mi · 18 min · US Highway 181 South

Take the exit slight right

0.3 mi · 45 sec

Keep slight right to continue on US Route 181

213 ft · 6 sec · US Route 181

Turn straight onto US Highway 181

0.7 mi · 1 min · US Highway 181

Take the ramp right

0.4 mi · 47 sec

Merge slight left

12 mi · 13 min

Take the exit straight toward I 37, US 77, I 69E

0.1 mi · 13 sec · I 37, US 77, I 69E

Keep slight left

0.4 mi · 48 sec

Merge slight right

2.5 mi · 2 min

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

31 mi · 33 min · I 69E, US 77: Kingsville, Brownsville

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

61 mi · 1 hr 9 min · U.S. Highway 77

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

27 mi · 27 min · U.S. Highway 77

Take the exit slight right toward US 77 Business, Loop 499: Valley International Airport, Primera Road

0.3 mi · 31 sec · US 77 Business, Loop 499: Valley International Airport, Primera Road

At the end of the road, turn left onto Business 77

0.4 mi · 45 sec · Business 77

Turn slight right onto North 77 Sunshine Strip

0.8 mi · 1 min · North 77 Sunshine Strip

Turn slight right onto North Commerce Street

2.1 mi · 3 min · North Commerce Street

Arrive at your destination

Trip Plan

Morning Departure

Start early — leave by 6-7 AM to arrive at a reasonable hour.

Evening Departure

This is a long drive — plan for a morning departure or consider splitting it into two days.

You can normally do this drive in one day.

Plan roughly 1 meaningful break for fuel, food, and rest.

The halfway point lands around 185.9 miles from Killeen, TX, or about 3h 27m into the drive.

This is a comfortable same-day trip.

Departure

Before you leave

Start with fuel, water, and navigation already sorted so the first hour feels easy.

First stop

Around 82 miles or 1h 31m in

Use this first pause for coffee, a restroom break, and a quick traffic check ahead.

Halfway reset

Around 185.9 miles or 3h 27m in

This is the best place for your longest stop, a real meal, and a full fuel check.

Final approach

Final hour starts around 5h 48m

Traffic, exits, and arrival timing usually matter more near Harlingen, TX than in the middle of the route.

Before You Leave

Open the route before leaving Killeen, TX so your first major turns are already loaded.

Leave with enough water and a charging cable within reach, not packed away.

Check your fuel range against the first long segment, especially if you are starting outside city service areas.

Day 1

Settle into the route from Killeen, TX

This is one driving day of about 371.9 miles and 6h 55m.

Your first comfortable stop window is around 82 miles from Killeen, TX.

This route can stay practical as a one-day drive if traffic stays reasonable.

Plan about 1 real break rather than only quick fuel stops.

Where to Stop

Rest stops, refuel points, and overnight suggestions along this route.

Halfway Point

Midpoint

About 185.9 mi from Killeen, TX · 3h 27m into the drive

Mid-route town

Meal stop

San Antonio, TX

186 mi into the route

Best for: Lunch, fuel, and a longer reset

This sits close to the middle of the route, so it works well for the longest stop of the day.

Pacing Suggestions

Austin, TX

Fuel and coffee

A short stop after about 82 miles helps settle the day before fatigue starts building.

San Antonio, TX

Meal break

The midpoint is around 185.9 miles from Killeen, TX, which is a good place for a longer meal and fuel stop.

Arriving in Harlingen, TX

The final approach into Harlingen, TX usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.

Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Harlingen, TX.

These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.

Fuel & Cost

Regular Gas

$56.81 one way

$113.62 round trip

$3.88/gal 25.4 MPG avg 130 kg CO₂

Fuel Type	$/gal	One Way	Round Trip
midgrade	$4.25	$62.26	$124.51
premium	$4.59	$67.22	$134.44
diesel	$5.64	$82.62	$165.25

No toll roads detected on this route.

Estimated Trip Cost (one way, 1 person)

Fuel

$57

Meals

$25–$50

Total

$82–$107

Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.

Estimated CO2 emission: 130.1 kg one way. Prices: EIA weekly data, 2026-04-06.

Driving Electric?

About $39 in charging · 1 stop · 66% less CO₂

Vehicle Type	kWh	Stops	DC Fast	Home Charge
Average EV	111.6	1	$39.05	$17.85
Efficient EV	93	1	$32.54	$14.88
EV Truck/SUV	148.8	1	$52.07	$23.80

Gas CO2

130 kg

EV CO2

44 kg (66% less)

Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.

DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.

Travel Intel

Current conditions at both ends of the drive.

Forecast data refreshed 2 days ago

Origin

Killeen, TX

Morning in Killeen on Sunday

Local time

11:52 AM

CDT

Current temp

60°F

Unavailable

Live forecast

Destination

Harlingen, TX

Morning in Harlingen on Sunday

Local time

11:52 AM

CDT

Current temp

72°F

Unavailable

Live forecast

Along the Route

81°F

San Antonio, TX

186 mi in

Seasonal Notes

Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.

Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.

Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.

Time zone

Same local time

Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.

Temperature spread

12 degrees warmer at arrival

A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.

Road read

6h 55m on the road

Start early — leave by 6-7 AM to arrive at a reasonable hour.

Weather data from the National Weather Service. Conditions may change; check closer to your travel date.

Frequently Asked Questions

The drive from Killeen, TX to Harlingen, TX covers 371.9 miles and takes about 6h 55m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.

The main roads are East Veterans Memorial Boulevard, South Fort Hood Street, Interstate 35. Expect a mix of highway and local road driving.

This is a comfortable same-day trip.

The midpoint is about 185.9 miles from Killeen, TX. Look for rest areas, gas stations, or food options near the halfway mark.

At current regular gas prices, expect to spend about $56.81 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.

Start early — leave by 6-7 AM to arrive at a reasonable hour. This is a long drive — plan for a morning departure or consider splitting it into two days.

Plan about 1 meaningful break for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.

The route itself is not hard, but at 6h 55m, endurance matters. Plan breaks every 2-3 hours. The 0 decision points are all manageable with basic attention.

This route does not have any notably tricky sections. Most of the drive from Killeen, TX to Harlingen, TX is straightforward, with well-signed roads and simple exits.

The route from Killeen, TX to Harlingen, TX does not surface many named destination signs beyond the main corridor.