$36 Car Rental Union City, CA

These Union City insights are based on real traveler data from Expedia, aggregated using AI to help you plan your trip. Updated: September 6, 2026.

Reasons to book a car rental in and around Union City

Renting a car in Union City offers you the freedom and flexibility to explore the area at your own pace. This is especially beneficial for families, business travelers, or those seeking city-themed experiences. With a rental car, you can conveniently visit key attractions like the San Francisco Bay, located 15 miles away, or enjoy outdoor adventures at California's Great America, just 14 miles from Union City. The Computer History Museum, ideal for cultural experiences, is also only 13 miles away. Additionally, nearby neighborhoods like Lakes and Birds, less than 1 mile away, and Ardenwood, 2 miles away, provide easy access to local highlights. If you're interested in exploring further, the city of Fremont, 4 miles away, features attractions such as Niles Canyon Railway and Lake Elizabeth. A rental car ensures easy luggage management and allows for spontaneous travel plans, making your journey more enjoyable. Whether you're traveling with family or on a business trip, having a vehicle at your disposal enhances your experience in and around Union City, allowing you to fully immerse yourself in the local attractions and scenery.

Most popular car rentals in Union City

• Midsize SUV AWD: This car type is a favorite among travelers in Union City, accommodating up to 5 passengers with space for 3 large suitcases. The All-Wheel Drive (AWD) feature adds an extra layer of confidence for those exploring various terrains. Ideal for families, couples, or small groups, the Midsize SUV AWD offers the perfect blend of comfort and flexibility, allowing you to enjoy your journey at your own pace while managing your luggage with ease.
• Midsize SUV: Another top choice in Union City, the Midsize SUV comfortably fits 5 travelers and also holds up to 3 large suitcases. This option is perfect for families, couples, or small groups seeking a spacious ride. With its versatility, the Midsize SUV enables you to navigate the local attractions effortlessly while providing ample room for your belongings. Experience the freedom of the open road with this practical and reliable vehicle.

Top rated car suppliers in Union City

• Enterprise: Enterprise is the most popular car rental supplier in Union City, offering one rental location in the area. Travelers appreciate the flexibility and wide selection of vehicles, particularly the Premium SUVs and Midsize cars, which are frequently booked. Known for its exceptional customer service, Enterprise provides a stress-free rental experience, allowing you to explore attractions at your own pace.

Where to stay around Union City

• Fremont: Located 4 miles from Union City, Fremont is a great option for travelers seeking a family-friendly, outdoor, or business-themed experience. Notable attractions include the historic Niles Canyon Railway, perfect for culture enthusiasts, and Lake Elizabeth, which offers scenic views and outdoor activities. Additionally, California's Great America amusement park is ideal for family adventures. The area is also home to shopping centers and various dining options, including wineries and restaurants.
• Oakland: Situated in Oakland, Union City provides easy access to a vibrant metropolis known for its family, outdoor, and culture-themed activities. Key attractions include Jack London Square, a modern hub for dining and entertainment, and the Berkeley Marina, which offers outdoor adventures and beautiful waterfront views. With numerous educational institutions and an array of restaurants and wineries nearby, Oakland is a well-rounded destination for a diverse range of interests.
• Newark: Just 4 miles from Union City, Newark is an excellent choice for families and business travelers alike. This city is known for its shopping malls and educational venues, along with attractions such as California's Great America amusement park for outdoor fun. The historic Winchester Mystery House offers a glimpse into the past, while the Santa Clara Convention Center caters to those attending business events. Dining options abound, featuring wineries and various restaurants to satisfy any palate.

10 tips to save on your car rental in and around Union City

1. Use filters to find the right car: Refine your search by specifying vehicle type and desired features. Whether you're looking for an SUV for added space, a convertible for summer enjoyment, or an economical car for budget-friendly travel, utilize Expedia's filters to discover the perfect option for your journey.
2. Book in advance to help lower costs: Rental prices can vary based on demand, so it's advisable to secure your car well ahead of your trip. By booking early, you're more likely to obtain lower rates and benefit from greater availability, particularly during peak seasons.
3. Consider a smaller car for savings: Smaller vehicles typically come at a lower rental cost and are easier to park in crowded areas. Mid-size rentals strike a good balance between price, comfort, and fuel efficiency.
4. Age guidelines: Drivers under the age of 30 may encounter higher deposits or daily surcharges, and specific vehicle types—such as SUVs or premium models—might not be available. This can also apply to renters aged 70 and above. Always verify the age restrictions before making a reservation.
5. Check fuel policies: Some rental agreements require a full-to-full fuel policy, meaning you must return the car with a full tank to avoid additional fees. This is generally the most favorable option. Others may provide full-to-empty or prepaid fueling alternatives, which can also work. Just ensure that you return the car empty in that case.
6. Save on city and airport pickups: Picking up your rental car at airports often incurs a surcharge, but the added convenience can make it worthwhile.
7. Know your payment options: Many car rental companies exclusively accept credit cards for payment.
8. Understand your insurance coverage: Car rental insurance can help you avoid unexpected expenses and provides peace of mind should something unforeseen occur during your trip. It's simple to include car rental insurance when booking with Expedia.
9. Consider unlimited mileage: If you plan on taking long road trips, seek out rentals that offer unlimited mileage to prevent incurring extra charges.
10. Bring your driver's license and ID: A valid driver's license is necessary to rent a car.

Best time to rent a car in and around Union City

The best time to rent a car in and around Union City is September, when prices are at their lowest and demand is moderate. October and November also offer reasonably priced options with steady demand. However, April tends to be the most expensive month, despite its lower demand. June through August see moderately high demand and prices, making them busier periods for rentals. Overall, planning around these trends can help ensure a smoother rental experience.

Calendar Month	Temperature	Precipitation	Cloudiness	Demand	Pricing
January	51.1°F (10.6°C)	Light Rain	Mostly Sunny	Moderately Low	Average
February	52.3°F (11.3°C)	Light Rain	Mostly Sunny	Moderately Low	Average
March	54.1°F (12.3°C)	Light Rain	Mostly Sunny	Average	Average
April	57.2°F (14.0°C)	No Rain (Dry)	Sunny	Moderately Low	Slightly High
May	60.3°F (15.7°C)	No Rain (Dry)	Sunny	Average	Average
June	65.1°F (18.4°C)	No Rain (Dry)	Sunny	Moderately High	Average
July	66.7°F (19.3°C)	No Rain (Dry)	Sunny	Moderately High	Slightly High
August	67.6°F (19.8°C)	No Rain (Dry)	Sunny	Moderately High	Average
September	67.5°F (19.7°C)	No Rain (Dry)	Sunny	Average	Slightly Low
October	63.7°F (17.6°C)	No Rain (Dry)	Sunny	Average	Slightly Low
November	56.1°F (13.4°C)	No Rain (Dry)	Sunny	Average	Slightly Low
December	50.9°F (10.5°C)	Light Rain	Mostly Sunny	Average	Slightly High

Finding the cheapest car rentals in Union City

Using our Search Wizard

If the deals that are available on our page do not suit your needs, then enter Union City into the search wizard at the top of the page. We will compare all the best deals available for your car rental in Union City and provide you with a list of the cheapest options, with no added fees.

Renting a car in Union City

Pay at pickup is available, so you don’t have to worry about spending your money until you arrive at your vehicle in Union City. We partner with reliable partners that guarantee an enjoyable experience for solo travelers, couples, and families. Package your car with a flight or hotel to unlock even more savings from Expedia.

Expected prices in Union City

Prices are subject to seasonal change depending on when you decide to arrange your car rental but right now you can book from $36.

Flexibility & Cancellation

Most car suppliers offer penalty-free cancellations, so you don’t have to worry about losing money if your plans change. To cancel your booking log into your account through the Trips portal. Click manage booking and cancel this car. If you needed to alter your booking, then you can create a new one once you have canceled.

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Car classes available from Expedia in 2026

The classes of vehicles available will change depending on your chosen location.

• Compact car rentals    
• Convertible car rentals    
• Economy car rentals    
• Fullsize car rentals    
• Luxury car rentals
• Midsize car rentals    
• Mini car rentals    
• Minivan rentals    
• Pickup car rentals    
• Premium car rentals
• Sportscar rentals    
• Standard car rentals    
• SUV rentals    
• Van rentals