Where the lowest prices actually are at DEN
Denver International Airport (DEN) rental counters charge more than off-airport locations because they pay concession fees to the airport — fees that get passed to you. The cheapest rental cars at DEN come from booking directly with budget brands like Enterprise, Budget, or Hertz rather than through comparison sites, and picking up at an off-airport location instead of the terminal. You can save $15 to $40 per day this way, though it requires a short ride or drive to reach the rental lot.
The second-cheapest option is booking through a comparison site like Kayak or Autoslash, which sometimes surface rates the rental companies themselves don't advertise. The most expensive option — and the one most travelers use by default — is walking to the rental counter at baggage claim and booking on the spot. Rates there are typically 20 to 30 percent higher than advance bookings.
Key Takeaways
- Off-airport rental locations in Denver charge $15 to $40 less per day than the airport terminal because they avoid concession fees.
- Budget and economy brands (Enterprise, Budget, Hertz, Alamo) consistently undercut premium brands (Hertz premium, Avis, National) at DEN.
- Booking three to seven days in advance through a rental company's website or a comparison site yields lower rates than booking at the counter.
- Comparison sites like Autoslash and Kayak sometimes show rates unavailable on the rental company's own website.
- Renting from an off-airport lot requires ground transportation (rideshare, rental shuttle, or personal pickup), which adds 20 to 45 minutes to your rental process.
Off-airport rental locations and what they cost to reach
The largest off-airport rental cluster is along North Peña Boulevard, about 3 miles from the terminal. Enterprise, Budget, Hertz, and Alamo all have locations there. A rideshare (Uber or Lyft) costs $8 to $15 depending on time of day. Some rental companies run free shuttles from the terminal — Enterprise and Budget typically do, though you need to call ahead or check their website to confirm the shuttle is running that day.
Advantage Rent A Car operates a location near the airport with a free shuttle service. Their rates are often the lowest in the Denver area, though their vehicle selection is smaller and their customer service ratings are mixed. If you are willing to rent from a less-known brand and do not mind older vehicles, Advantage can save you $20 to $50 per day compared to the terminal.
Downtown Denver locations (near Union Station, about 20 minutes from the airport by rideshare) sometimes have lower rates than airport-area lots, but the time and cost to reach them usually erase the savings. The exception is if you are staying downtown anyway — then picking up there makes sense.
Budget and economy brands versus premium rental companies
Enterprise, Budget, Hertz, and Alamo consistently charge less than Avis, National, and Hertz premium at DEN. The difference is typically $10 to $25 per day for the same vehicle class. Budget and economy brands make money on volume and ancillary fees (insurance, fuel, GPS) rather than base rates. Premium brands market to business travelers and charge accordingly.
All four budget brands maintain counters at the DEN terminal, so you are not sacrificing convenience by choosing them. The trade-off is that their fleets skew toward older model years and higher mileage. If you need a specific vehicle type (full-size SUV, luxury sedan), availability at budget brands can be limited, especially during peak travel seasons.
How far in advance to book and which websites to use
Rates drop when you book three to seven days ahead. Booking more than two weeks out sometimes locks in a lower rate, but prices can also rise if demand spikes — there is no penalty for canceling most advance bookings, so locking in a rate early carries little risk. Booking the day before or day of arrival typically costs 20 to 40 percent more than a week-ahead booking for the same dates.
Autoslash and Kayak often surface rates that do not appear on the rental company's own website. This happens because comparison sites negotiate directly with rental companies and sometimes receive exclusive inventory or pricing. Set up a price-watch alert on Autoslash — it will email you if the rate for your dates drops after you book. Booking directly on the rental company's website is usually competitive with comparison sites, and you avoid the middleman if something goes wrong with your reservation.
Insurance, fuel, and fees that add up fast
The base rental rate is not the full cost. Collision damage waiver (CDW) insurance, which covers damage to the rental car, costs $12 to $25 per day at DEN locations. Your personal auto insurance or credit card may cover rental cars — check your policy before paying for CDW. If you decline CDW and damage the car, you pay out of pocket, which can easily exceed $2,000 for major damage.
Fuel charges are the second-largest hidden cost. Most rentals require you to return the car with a full tank or pay a refueling fee of $6 to $8 per gallon — roughly double the pump price. Fill up at a gas station within a mile of the rental return location before dropping off the car. Airport area gas stations near the rental lots are cheaper than downtown stations.
Airport concession fees, facility charges, and taxes add 25 to 35 percent to your base rate at the terminal. Off-airport locations have lower taxes and no concession fees, which is why the total cost difference is often larger than the base rate difference alone.
Loyalty programs and membership discounts
Enterprise Plus, Hertz Gold, and Budget Frequent Renter programs waive some fees and sometimes offer rate discounts. These programs are free to join and can save $5 to $15 per rental if you rent several times per year. The discount is usually 5 to 10 percent off the base rate, not the total cost including insurance and fees.
AAA membership sometimes unlocks rental discounts through Hertz and Avis — typically 10 to 15 percent off. AARP membership works with Enterprise and Budget. Check your membership benefits before booking; the discount code must be entered at booking time to explore. Discounts do not stack, so compare the AAA rate against the best rate you found on a comparison site before deciding which to use.
Frequently Asked Questions
Can I book a rental car at DEN and pick it up at a downtown Denver location instead?
Yes, most major rental companies allow one-way rentals. The one-way fee is typically $15 to $40 depending on distance and the company. Booking a one-way rental from the airport to downtown is usually cheaper than renting at the airport and paying for parking downtown, but more expensive than renting at the downtown location outright.
What happens if I book a cheap rate and then the price drops before my trip?
Most rental companies allow free cancellation and rebooking up to 24 hours before pickup. If you see a lower rate, cancel your current reservation and rebook at the new price. Autoslash will monitor your reservation and email you if the price drops, so you do not have to check manually.
Is it worth renting from Advantage or other budget-only brands to save money?
Advantage and similar brands can save $20 to $50 per day, but their vehicles are often older and their customer service is less reliable. Read recent reviews for the specific location before booking. If you are renting for a week or longer, the savings add up; for a one-day rental, the hassle may not be worth $20.
Do I need to buy the rental company's insurance if my credit card covers rentals?
Check your credit card's rental car coverage before declining the rental company's insurance. Most premium credit cards cover collision damage, but some exclude certain vehicle types (luxury cars, SUVs) or have high deductibles. Call your credit card issuer before your trip to confirm coverage and deductible amounts.
What is the cheapest way to get from DEN to an off-airport rental location?
A rideshare (Uber or Lyft) costs $8 to $15 and takes 10 to 15 minutes. Some rental companies run free shuttles from the terminal — call ahead to confirm. If you are traveling with others, splitting a rideshare is cheaper than each person paying separately. Rental shuttles are free but run on a schedule and may have longer wait times during peak hours.