Flight
Driving
Merrillville to San Antonio
Updated: 28 May 2026
The journey from Merrillville to San Antonio covers about 1,900 km. Flying from Chicago O'Hare to San Antonio International Airport is the most efficient, taking about 3.5 hours. Driving involves a long trek down I-57 and I-35, taking approximately 19 hours. This route takes you from the industrial Midwest to the historic heart of Texas.
Total Distance: Driving distance 1,900 km, straight-line air distance 1,600 km.
Fastest Way
Direct flight from O'Hare to San Antonio, taking 3.5 hours.
Cheapest Way
Flight from O'Hare, often available for under $160.
Compare Merrillville to San Antonio Routes
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Direct
|
Direct
|
|
|---|---|---|
| Duration | 3 hours 30 mins | 19 hours |
| Avg Price | $140 - $350 | $250 - $450 (fuel) |
| Operator | United Airlines | Personal Vehicle |
| Route | ORD to SAT | I-57 S to I-35 S |
| Tip | San Antonio International is a short drive from the famous River Walk. | Expect heavy traffic in Dallas and Austin when taking I-35. |
Travel Tips
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AirportSAT is about 15 minutes from downtown by car.
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TrafficAvoid I-35 during peak hours in Dallas and Austin.
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Sun ProtectionThe Texas sun is intense; wear sunscreen daily.
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DiningTry the local Tex-Mex cuisine, especially the tacos.
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WeatherSummers are extremely hot; plan for indoor activities.
Safety Tips
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Road SafetyStay alert for heavy traffic and construction on I-35.
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Urban SafetyStay aware of your surroundings in downtown areas at night.
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EmergencyDial 911 for any emergency assistance.
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Sun SafetyStay hydrated and avoid peak sun hours.
People Also Ask
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Is there a direct flight?Yes, United offers direct flights from O'Hare.
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How long is the drive?Approximately 19 hours of driving time.
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What is the best time to visit?Spring and fall are the most comfortable.
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Do I need a car?A car is recommended for exploring the San Antonio area.
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Is San Antonio safe?San Antonio is generally safe, but standard city precautions apply.
Quick Info
- From Merrillville, Indiana, United States
- To San Antonio, Texas, United States
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Modes
Best Time to Travel
March to May or October to November for mild weather and outdoor activities.
Things to Do in San Antonio
1
The Alamo
Visit the historic mission and fortress. It is a symbol of Texas independence.
2
San Antonio River Walk
Walk along the scenic river lined with shops and restaurants. It is the city's top attraction.
3
The Pearl District
Explore this revitalized brewery complex with great dining and shops.
4
San Antonio Missions
Tour the UNESCO World Heritage site of historic Spanish missions.
Tags
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