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London Heathrow Airport Car Hire | 2026 Guide
Compare car hire at London Heathrow Airport. Terminal pickups, ULEZ rules, M25 access, deposit costs, and best routes out of London. Updated April 2026.
Picking Up a Hire Car at Heathrow
London Heathrow is the UK's busiest airport — over 80 million passengers a year pass through its four terminals. If you're hiring a car, the good news is that every terminal has rental desks on-site or a short shuttle away. The less good news: you're starting your drive from one of the most complex road networks in Europe.
Terminal 2 and Terminal 3 share a rental car centre. Follow signs to the Ground Floor of the Short Stay Car Park — the desks for Hertz, Europcar, Enterprise, Sixt, Budget, Avis, and National are all clustered together. Walk time from arrivals is about 5 minutes.
Terminal 4 has Hertz and Budget desks on the Ground Floor of Car Park 4A. Other suppliers operate from the Terminal 2/3 hub with a short shuttle.
Terminal 5 has the full complement — Hertz, Avis, Europcar, Enterprise, Sixt, and Budget all operate from the dedicated rental facility on the Northern Perimeter Road. A free shuttle bus runs every 10 minutes from the terminal forecourt.
Allow 30-45 minutes from landing to driving away. Pre-booking online saves both time and money — walk-up rates at Heathrow can be 40-60% higher than advance bookings, especially during school holidays.
Exiting Heathrow by Car
From any terminal, you'll join the M4 (westbound towards Reading and the West Country) or the M25 London Orbital. Here's what matters:
- M4 eastbound heads into central London (about 40 minutes to Paddington, traffic depending). You'll hit the ULEZ zone at the North Circular (A406) — more on that below.
- M25 northbound takes you towards the M1, A1, and the north of England. Handy for Oxford (M40 north), Cambridge (M11 north), or Heathrow-area hotels.
- M25 southbound connects to the M3 (Southampton), M23 (Gatwick), and the M20 (Channel Tunnel, Dover).
Key tip: Avoid the M25 between 7-9am and 4-7pm on weekdays if at all possible. The M4 into London similarly stacks up during rush hours. Google Maps and Waze are both reliable for real-time traffic around Heathrow.
ULEZ, Congestion Charge, and Toll Roads
This is the bit that catches out visitors every single time.
ULEZ (Ultra Low Emission Zone): Covers all of Greater London — essentially everywhere inside the M25. If your hire car doesn't meet Euro 6 (petrol) or Euro VI (diesel) standards, you'll pay £12.50 per day. The good news: virtually all hire cars from Heathrow suppliers are ULEZ-compliant. Just confirm at pickup.
Congestion Charge: Covers central London only (Zone 1 basically). £15 per day, operates Monday to Friday 7am-6pm and weekends 12pm-6pm. If you're not driving into the City of London, Westminster, or South Bank, this won't apply.
M25 Dart Charge: The Dartford Crossing (east of London on the M25) costs £2.50 per car. Pay online by midnight the day after you cross. Your hire car company may charge an admin fee if they handle it — check your rental agreement.
Dartford Tunnel tip: The crossing only applies if you go east on the M25 past junctions 1A-31. If you're heading west or south from Heathrow, you won't encounter it.
Fuel Policy and Deposit Costs
Heathrow suppliers typically offer two fuel policies:
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Full-to-full — You pick up with a full tank, return it full. No fuel charge. This is the default with most suppliers and the best option if you're doing any meaningful driving.
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Pre-purchased fuel — You pay for the first tank upfront (often at a premium rate over pump prices) and return it empty. Only makes sense if you genuinely expect to use a full tank.
Deposits: Expect £500-£1,200 held on your credit card, depending on supplier and car class. Hertz and Avis tend towards the higher end. Enterprise and Budget are usually on the lower end. The hold is released 3-7 business days after return if there's no damage.
Insurance upsell: The counter agent will push excess reduction cover. At Heathrow, this typically adds £15-25/day. Consider whether your travel insurance or credit card already covers car hire excess before agreeing.
Best Routes from Heathrow
Heathrow to Oxford (40 miles, M4 then A34)
About 50 minutes via the M4 west, then A34 north at junction 13. Oxford's Park and Ride system is excellent — don't attempt to drive into the city centre. Thornhill and Seacourt P+R are well-signposted and cost £2-4/day.
Heathrow to Bath (100 miles, M4 west)
90 minutes via the M4 directly to junction 18. Straightforward drive. Bath has limited central parking — use the Charlotte Street car park or one of the Park and Ride sites.
Heathrow to Stonehenge and Salisbury (75 miles, M3 then A303)
About 1 hour via M3 to junction 8, then A303 west. Stonehenge has a large visitor centre car park (free if you've bought a ticket). Continue on A303 to reach Devon and Cornwall.
Heathrow to Windsor (7 miles, M4 west, junction 6)
15 minutes. Windsor is close enough that a hire car from Heathrow is almost overkill — but handy if you're connecting to the M4 corridor.
Heathrow to the Cotswolds (80 miles, M4 then A46)
About 90 minutes via M4 west to junction 18, then A46 north through Stroud and Cheltenham. The Cotswolds are best explored by car — there's no meaningful public transport between villages.
Insurance: What You Actually Need
UK car hire comes with compulsory third-party insurance, but the excess (the amount you pay if the car is damaged) can be £1,000-£2,500. Three ways to cover this:
- Supplier excess reduction — £15-25/day added at the counter. Reduces excess to £0-100.
- Third-party excess insurance — £3-6/day from providers like iCarInsurance or Questor. Covers the excess if you need to claim. You're still liable to the hire company upfront, then you claim back.
- Credit card cover — Some premium cards (Visa Platinum, Amex) include car hire excess. Check your card terms — it's the cheapest option if you have it.
Read our car hire excess insurance guide for the full breakdown of options and pitfalls.
Right-Hand Drive: Tips for Left-Side Drivers
If you're used to driving on the right, remember:
- Roundabouts go clockwise — yield to traffic from the right
- Gear lever and indicators are on the left side of the steering wheel
- Overtake on the right — the fast lane is the outside lane on motorways
- Speed limits — 70mph on motorways, 60mph on dual carriageways, 30mph in built-up areas, 20mph in many London boroughs
- Mobile phone use is strictly prohibited, even when stationary at traffic lights. Cameras enforce this.
Which Supplier at Heathrow?
Here's a quick comparison based on our editorial reviews:
| Supplier | Terminal | Price range | Deposit | Best for |
|---|---|---|---|---|
| Hertz | T2/3, T4, T5 | ££ | £1,000-1,200 | Premium cars, gold service |
| Avis | T2/3, T5 | ££ | £900-1,200 | Frequent traveller programmes |
| Enterprise | T2/3 | £ | £500-800 | Budget-friendly, good service |
| Sixt | T2/3, T5 | ££ | £800-1,200 | Premium fleet, German cars |
| Europcar | T2/3, T5 | ££ | £700-1,000 | Wide selection, decent rates |
| Budget | T2/3, T4 | £ | £500-900 | Economy rates, straightforward |
Our insurance guide covers what each supplier's excess policy covers and where the gaps are.
Parking in London
If you're staying in central London, think hard about whether you need the car at all. Parking costs £4-8/hour on-street and £25-50/day in NCP or council car parks. Westminster, Camden, and the City of London are the most expensive.
If you're using the car to get out of London, stay at a hotel near Heathrow or the M25 corridor and take the Heathrow Express or Elizabeth Line into central London instead. That 15-minute train ride saves you the ULEZ headache and central London parking costs.
Heathrow Long Stay parking costs from £6.80/day if you're leaving the car — but if you've got a hire car, you'd be paying to park a car you're renting. Use Park & Ride on the outskirts instead.
Leaving the Car Somewhere Else? One-Way Hire
Most Heathrow suppliers offer one-way hire, but it comes with a one-way fee that varies wildly:
- Within the UK: £30-80 one-way fee
- To mainland Europe via Eurotunnel: £150-300 one-way fee
- To Ireland via ferry: £200-400 one-way fee
Enterprise and Budget typically have the lowest one-way fees within the UK. Hertz and Sixt charge more but have more drop-off locations.
Compare this with our one-way car hire explained guide for the full breakdown of fees and when one-way makes sense.
FAQ
Do I need an International Driving Permit to hire a car at Heathrow?
EU, US, Canadian, Australian, and New Zealand licences are accepted without an IDP. If your licence is in a non-Latin script (Arabic, Cyrillic, Chinese, Japanese), you'll need an IDP alongside your national licence. Always carry both.
How much does car hire cost at Heathrow in 2026?
Economy cars start from £25-35/day in low season (January-March) and £50-80/day in peak summer. SUVs and people carriers start from £60/day off-peak. Pre-book 2-4 weeks ahead for the best rates. Walk-up prices can be double.
Is it worth hiring a car at Heathrow or should I take the train?
It depends on your itinerary. If you're staying within London Zones 1-3, don't hire a car — the Tube, Elizabeth Line, and buses are faster and cheaper. If you're heading to the Cotswolds, Oxford, Bath, Stonehenge, or the south coast, a car from Heathrow saves 1-2 hours compared with train connections.
What's the ULEZ charge from Heathrow?
Greater London's ULEZ zone starts east of Heathrow. If you drive towards central London, you'll enter ULEZ within 10 minutes on the M4. All modern hire cars are ULEZ-compliant, so you won't be charged. The Congestion Charge (£15/day) only applies in central London — confirm your route whether it applies.
Can I drive from Heathrow to France or the Channel Islands?
Yes, but you need to inform the hire company at pickup. Cross-border to France via Eurotunnel or ferry incurs a one-way fee of £150-300 and requires the supplier's written permission. You'll also need to carry a breathalyser kit, warning triangle, and high-vis vest (required by French law). Many suppliers provide these on request.
Which terminal at Heathrow has the best car hire facilities?
Terminal 5 has the most dedicated space — the rental facility is on the Northern Perimeter Road with a free shuttle. Terminals 2/3 share a large rental hub on the ground floor of the short-stay car park. Terminal 4 has limited on-site options — Hertz and Budget only, with other suppliers requiring a shuttle.
How long does car hire pickup take at Heathrow?
Allow 30-45 minutes from collecting luggage to driving away. Pre-booking online and joining a loyalty programme (Hertz Gold, Avis Preferred) can cut this to 10-15 minutes. Walk-up bookings during peak times (Friday afternoon, school holidays) can take over an hour.
What happens if I return the car late at Heathrow?
Most suppliers offer a 29-minute grace period. After that, you're charged an extra day's rental at the walk-up rate (which can be significantly higher than your pre-booked rate). If you're running late, call the supplier's Heathrow desk directly — some will extend by an hour without charge if you call ahead.