8 Proven Ways to Book Cheap Car Rental in Europe

Car rental pricing is dynamic — the same car at the same airport can cost €25/day booked three weeks ahead or €75/day booked the night before. The rental companies are not being arbitrary; they're responding to supply and demand just like airlines. Understanding this means you can consistently get the cheaper end of the price range.

1. 1
   Book 2–3 Weeks Ahead with Free Cancellation

   Booking 2–3 weeks before travel is the sweet spot for most European destinations — enough lead time to access pre-booked rates, but not so far ahead that you're locked in before prices might drop. The critical element is booking with free cancellation. This lets you rebook if a cheaper rate appears closer to your travel date. Set a reminder to re-check prices 1–2 weeks after booking and one week before travel. If the price has dropped, cancel and rebook. This alone saves many travellers €30–€80 on a week's rental.

2. 2
   Pick Up Off-Airport If You Can

   Airport concession fees add 10–25% to the rental rate. If your flight arrives during the day and you don't immediately need the car, consider taking the airport bus or train to the city, checking into your hotel, and picking up from a city centre branch the next morning. The saving can be significant — €10–€30 on a weekly rental. For Vilnius Airport arrivals, the express bus runs frequently into the city centre. For Kaunas Airport, similar options exist. For late-night arrivals, airport pickup is the practical choice — the saving doesn't justify the hassle.

3. 3
   Use Aggregators, Not the Direct Supplier Website

   Rental aggregators — DiscoverCars, AutoEurope, RentalCars.com — negotiate volume rates that typically undercut the rental company's own website by 15–35%. There is no benefit to booking direct with Hertz, Europcar, or Avis for most travellers. The car and service are identical; only the price differs. Use our comparison tool to search across multiple aggregators simultaneously. Check at least two platforms for each booking — price differences of €30–€60 on a weekly rental between aggregators are common. See our provider rankings for details on each platform.

4. 4
   Choose a Smaller Car Category

   Moving down one car category (from mid-size to compact, or from compact to economy) typically saves 20–35% on the daily rate. For most road trips and holiday drives, the difference between a VW Polo and a VW Passat is irrelevant — you spend most of your time in the destination, not in the car. Reserve a larger car only if you specifically need the boot space (large luggage, child gear) or have more than four passengers. Also note: the "or similar" clause means you might receive a slightly larger car anyway if inventory runs low in your chosen category.

5. 5
   Skip GPS — Use Your Phone

   GPS rental from the rental desk costs €8–€15 per day — €80–€150 on a ten-day trip. Your smartphone with Google Maps or Waze is better than any rental-desk sat-nav: live traffic data, offline map downloads, and free. Download offline maps for your destination before your flight. Within the EU, roaming charges are regulated for most European SIM cards, so data from your home SIM typically works at domestic rates. See our full hidden fees guide for other avoidable charges.

6. 6
   Always Choose Full-to-Full Fuel and Decline Prepaid

   The prepaid fuel option (also called "full-to-empty") lets you return the car at any fuel level by paying for a full tank upfront. The catch: the per-litre price is above the pump rate, and you almost never use a precisely full tank. Stick to full-to-full policy: receive a full tank and return it full. Fill up at a petrol station near the return point — a 5-minute detour. On a one-week rental you'll typically save €20–€40 compared to the prepaid option.

7. 7
   Book with Free Cancellation and Re-Check Prices

   After your initial booking with free cancellation, re-check prices at 1-week intervals until 3–4 days before travel. Prices sometimes drop as the rental date approaches if cars aren't selling out — particularly in shoulder season (April–May, September–October). If you find a lower price, cancel your current booking and rebook at the new rate. Some aggregators also have price-match policies. This strategy costs nothing and has a realistic chance of saving €20–€50 on a standard rental.

8. 8
   Sort Excess Insurance Before You Travel

   The single most over-priced item in car rental is the excess waiver sold at the pickup desk at €10–€25/day. You can get equivalent or better coverage from specialist insurers (insurance4carhire, RentalCover.com) for £5–£10/day, or buy an annual policy from ~£50 that covers all your rentals for a year. If you have a premium credit card (Amex Platinum, Visa Infinite) check whether rental car excess coverage is included as a cardholder benefit — if so, decline the counter upsell entirely and pay nothing. See our insurance guide for the full approach.

What This Saves: A Realistic Comparison

A last-minute, direct-booking, airport pickup, mid-size car with counter insurance and GPS might cost €75/day. The same trip booked 3 weeks ahead, through an aggregator, in a compact category, off-airport pickup, with your own excess insurance and no GPS add-ons — €28–€35/day. The saving on a 7-day trip: €280–€330.

Not all trips allow for all eight optimisations — airport pickup is necessary for late-night arrivals, and you might genuinely need a larger car. But applying even four or five of these steps consistently produces meaningful savings.