Origin
Amarillo, TX
Morning in Amarillo on Tuesday
Local time
6:47 AM
CDT
Current temp
76°F
Unavailable
Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 21, 2026 · Editorial standards
Drive Time
8h 52m
Distance
506.8 mi
816 km
Drive Score
9/10
Great drive
Same Day?
2-day trip
Fuel Cost
$77
one way
EV Charging
Unknown
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Amarillo, TX
Wikimedia Commons
San Antonio, TX
Wikimedia Commons
Amarillo to San Antonio is 506.8 miles and takes about 8h 52m via Marshall Formby Memorial Highway and I 10, with a fuel budget near $77 and enough daylight to finish in a day. This long-haul drive will take you across the vast expanse of Texas, moving from the Great Plains region to another part of the Great Plains. Given the distance and time, it's best planned as a two-day trip to avoid fatigue. You'll spend most of your time on major highways, making it a straightforward but lengthy transit across the state.
Trip Pace
Best split across 2 days
Treat the return leg as its own travel day rather than an afterthought.
Break Rhythm
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
253.4 miles from Amarillo, TX
A natural place for your longest stop of the day , about 4h 24m into the drive .
| Road | Distance | Duration |
|---|---|---|
| Marshall Formby Memorial Highway | 103.7 mi | 1h 43m |
| US Highway 84 | 73.9 mi | 1h 14m |
| I 10 | 71.7 mi | 1h 14m |
| Grassmeyer Street | 41.9 mi | 44m |
| US 83 | 40 mi | 38m |
| State Highway 153 | 29.5 mi | 33m |
| Ellis Street | 29.4 mi | 31m |
| East Highway 84 | 26.9 mi | 26m |
Step-by-step road directions between Amarillo, TX and San Antonio, TX.
Start on I 40 Business; Original US Route 66; US 60
Turn right onto US 60; US 87; US 66 Access
Continue on US 60; US 87; US 66 Access
Continue on US 60; US 87
Keep slight left at fork onto I 27
Take the exit
Turn straight onto North Interstate 27
Turn left onto North Loop 289
Take the ramp
Merge onto Loop 289
Take the exit
Keep slight right at fork
Turn straight onto Southeast Loop 289
Turn right onto Spur 331
Merge onto US 84
Continue on US 84
Continue on US 84
Continue on US 84
Continue on US 84
Turn left onto Spur 575
Turn right onto TX 207
Turn straight onto TX 207
At end of road, turn left onto US 84
Keep slight left at fork onto US 84
Take the exit
Turn slight left onto Southwest Georgia Avenue
Turn right onto TX 70
Continue on TX 70
Turn left onto TX 153
Turn right onto FM 2111
Turn left onto TX 158
At end of road, turn right onto US 67; US 83
Turn left onto US 83
Continue on US 83
Continue on US 83
Take the exit onto US 83
Continue on I 10
Keep slight right at fork onto I 10; US 87
Keep slight right at fork onto I 10; US 87
Take the exit
Turn straight onto North Pecos-La Trinidad
Keep slight right at fork onto North Pecos-La Trinidad
Turn left onto Dolorosa Street
Arrive at destination
For this 506.8-mile drive, splitting it over two days is highly recommended to ensure a safe and comfortable experience. Aim to start early on your first day to maximize daylight hours. With two recommended stops, plan to cover roughly half the distance each day. Keep an eye on your fuel levels, especially during the 103.7-mile stretch on Marshall Formby Memorial Highway, as services might be less frequent. The $77 fuel estimate is a good baseline, but always factor in potential price variations.
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.
Consider an overnight stop or starting very early.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 111 miles or 1h 55m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 253.4 miles or 4h 24m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Overnight split
Day 1 wrap after about 253.4 miles or 4h 24m
Stop before fatigue turns the last few hours into a grind. You want day two to start fresh, not just resumed.
Final approach
Final hour starts around 7h 48m
Traffic, exits, and arrival timing usually matter more near San Antonio, TX than in the middle of the route.
Open the route before leaving Amarillo, 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.
Pick one backup stop option before the midpoint in case traffic changes your pacing.
Treat this as a 2-day road trip and book the overnight stop before the busiest arrival window.
Day 1
Settle into the route from Amarillo, TX
Aim for roughly 253 miles and 4.4 hours of wheel time on this day.
Day 2
Finish the approach into San Antonio, TX
Aim for roughly 253 miles and 4.4 hours of wheel time on this day.
Rest stops, refuel points, and overnight suggestions along this route.
First major stop
Coffee and fuel
167 mi into the route
Best for: Coffee, fuel, and an easy first stretch
This is a natural early stop once the first hours of the drive are behind you.
Second major stop
Overnight candidate
334 mi into the route
Best for: Hotel check-in, dinner, and a fresh start
This lines up well with a realistic day-end stop if you are breaking the drive into stages.
Find hotels in Live Oak, TXNight 1
253 mi · about 4.4h in
A practical overnight split lands near Roscoe, TX after about 253 miles or 4.4 hours of driving.
Find hotelsA short stop after about 111 miles helps settle the day before fatigue starts building.
The midpoint is around 253.4 miles from Amarillo, TX, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before Marshall Formby Memorial Highway if your tank is already low. That segment runs about 103.7 miles.
Overnight split
Hotel stopFor a steadier pace, wrap day one after about 253 miles or 4.4 hours on the road.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
5 decision points cluster between mile 127.8 and 505.1 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
Keep slight right at fork toward Spur 331: Southeast Drive
Highway fork - watch signs carefully
Keep slight left at fork onto US 84 toward I 20 East, US 84 East: Abilene
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Take the exit toward SH 70 South, SH 70 Business: Sweetwater, San Angelo
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Take the exit onto US 83 toward I 10 East: San Antonio
Exit ramp - move to the correct lane early. Lane positioning matters here
Take the exit toward Santa Rosa Street, Downtown
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Regular Gas
$76.58 one way
$153.16 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.20 | $83.82 | $167.64 |
| premium | $4.54 | $90.49 | $180.97 |
| diesel | $5.61 | $111.90 | $223.79 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$77
Hotel (1n)
$80–$140
Meals
$50–$100
Total
$207–$317
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 177.3 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $53 in charging · 1 stop · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 152 | 1 | $53.21 | $24.33 |
| Efficient EV | 126.7 | 1 | $44.35 | $20.27 |
| EV Truck/SUV | 202.7 | 2 | $70.95 | $32.44 |
Gas CO2
177 kg
EV CO2
59 kg (67% 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.
Current conditions at both ends of the drive.
Origin
Morning in Amarillo on Tuesday
Local time
6:47 AM
CDT
Current temp
76°F
Unavailable
Destination
Morning in San Antonio on Tuesday
Local time
6:47 AM
CDT
Current temp
70°F
Unavailable
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.
For long drives, weather on day two can matter just as much as conditions at departure, so check the whole travel window rather than only the first day.
Time zone
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
This is long enough that the arrival forecast matters almost as much as departure conditions. Recheck both ends before you roll.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
This drive is primarily on major highways, with 58% of the route utilizing them. You'll encounter a long stretch of 103.7 miles on Marshall Formby Memorial Highway, suggesting extended periods of rural cruising. The transition from highway to other roads will be gradual, not sudden, with I 10 likely providing the most consistent speeds for significant portions of the trip. Expect a steady pace with fewer frequent exits for much of the 506.8 miles.
At 8h 52m, this is a long-haul route where pacing matters more than any single turn. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 127.8 miles in.
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 27 significant decision points across 506.8 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 127.8 miles: Highway fork - watch signs carefully; at 238 miles (US 84): Highway fork - watch signs carefully. Multiple destination signs - pick the right one; at 244.5 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one.
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Amarillo, TX and San Antonio, TX, road signs point toward Loop 289, Sh 70 South, Sh 70 Business: Sweetwater and San Angelo.
Loop 289
Sh 70 South
Sh 70 Business: Sweetwater
San Angelo
Amarillo, which means "yellow" in Spanish, is the center of the Texas Panhandle at the edge of the Great Plains.
Founded 1718
San Antonio is the second largest city in the state of Texas and the 7th largest in the United States. It's the 24th largest metropolitan area in the country. Visited by more than 31 million annual visitors, San Antonio is a beautiful city at the axis of three different geological terrains: Hill Country, South Texas Plains and Prairie and Lakes. There's a lot to do in this city: fine art museums, historical missions and plenty of amusement parks in addition to great dining and lots of drinking. The culture and people are vibrant and interesting. San Antonio's downtown is one of the most lively in the nation.
Top landmarks
City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, and EIA for fuel prices. See our methodology for refresh cadence and limitations.
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