Handing the car back at Keflavík is usually the easiest part of the trip, and the part people leave least time for. The drive in, the last fuel stop, the inspection and a possible shuttle all stack up, and they stack up worst at the early-morning departure wave. Here is how to plan the last two hours so nothing about it is interesting.
Work backwards from the moment you want to be standing inside the terminal, not from your departure time. The usual advice for Keflavík is about two and a half hours before a flight, and nearer three in the summer morning wave. Everything to do with the car happens before that clock starts.
The drive from Reykjavík is about 50 km on Route 41 and takes 45 to 55 minutes in clear conditions. In winter it takes longer, and in severe weather the road closes. Check the road authority's conditions map, or call 1777, before setting off in the dark months rather than discovering a closure at Hafnarfjörður. The emergency number, if you ever need it, is 112.
Then add the return itself. If your operator's lot is at the airport, allow 10 to 20 minutes for the inspection and the paperwork. If it is off-site, add the shuttle and the wait for it: the vans run to their own rhythm, and a full one will leave without you.
| Step | Allow | Notes |
|---|---|---|
| Reykjavík to KEF, Route 41 | 45–55 min | Add 20–30 min in winter weather or high wind |
| Last fuel stop | 10–15 min | Pumps get busy before the early departures |
| Return and inspection | 10–20 min | Longer at peak return times |
| Shuttle to the terminal | 10–20 min | Only if your operator is off-site |
| Inside the terminal before departure | 2.5 hours | Nearer 3 in the summer morning wave |
Stacked end to end, that means leaving central Reykjavík something like four and a half hours before an 07:00 departure in July. It sounds excessive until the one morning it isn't.
From roughly November to April the car will be on winter tyres, as the seasonal rules expect, and the return leg is often the stretch driven in the dark on a road that iced overnight; the rules are in our winter tyre guide.
Most Icelandic operators work full-to-full: you collect the car with a full tank and return it full. It is the simplest arrangement and usually the cheapest, provided you actually fill up. Prepaid deals, where offered, only pay off if you return the car close to empty, which almost nobody manages.
Hand back a tank that is not full and you can expect a per-litre rate above the pump price, plus a refuelling or service fee on top. Both vary by company and neither is published consistently, so read the fuel clause in your own contract. Some operators also want a fuel receipt from a station near the airport, so keep it.
There is no filling station at the terminal itself. The last realistic fill-ups are in Keflavík town and Njarðvík, a few minutes off the airport road, so turn off before the terminal approach rather than after. Our page on fuel stations near Keflavík Airport covers which are handiest from each direction.
Two small things cause large bills. Check whether the car takes petrol or diesel before you lift the nozzle — the filler flap or key tag usually says — because misfuelling sits outside what the standard waivers cover. And on an electric car, check what charge level the contract wants it back at.
Operators at Keflavík fall into two groups. Some return to the car park beside the terminal, walking distance with a trolley. Others sit a few kilometres out and run a shuttle. That difference matters more on the return than on the pickup, because now you have a deadline.
Your booking confirmation carries the return address, and it is not always where you collected. Put it into the satnav the night before, not at the last roundabout. Airport signage points to the car parks in general; the address is what gets you to the right bay. The shuttle guide covers how the transfers work and how long they take.
Iceland's roads produce a specific set of marks: stone chips in the windscreen and the bonnet from gravel, scuffing along the sills, sandblasted paint if you parked side-on to the wind on the south coast. A return inspection is where those get priced.
Do the same walkaround you did at collection, in the same order: front bumper and windscreen, both flanks, wheels and rims, roof, rear bumper, then the interior. Film it with a timestamp, odometer and fuel gauge in the same clip. Paired with your pickup photos, that settles most disputes before they start.
If staff inspect the car, ask for the check-in sheet to be marked and signed, and photograph it. Do not accept a verbal "you're all set" as the end of the matter — a charge, if one comes, arrives days later on the card.
Where damage has occurred, know what your cover includes. Gravel protection and sand-and-ash cover are the two Iceland-specific products, and river crossings are excluded from every rental policy sold in the country. Cars back from the F-roads, which open in stages from mid-June to early July, tend to get a closer look underneath. Our insurance guide sets out what each waiver covers and how the excess works.
Finally, empty the car properly. Passports and cards slide under seats, and chargers, holders, child seats and any fuel card issued need to go back. Retrieving something after you have flown is slow and rarely free.
Plenty of departures leave before the desks are staffed, and operators at Keflavík generally have some arrangement for it — usually a key box at the office, with an envelope for the key and your contract number. What differs is when responsibility for the car passes back. Some contracts keep it yours until staff inspect the car in working hours; others treat the drop itself as the end of the rental. Read that clause before your last night.
Either way the routine is the same: park in the bay the company specified, photograph the car from all four corners plus the odometer and the fuel gauge, note the time, seal the key in the envelope with your contract number written on it, and never leave the key inside the car. Email the photos to yourself for a server timestamp. It takes four minutes and it is the only version of events you will have.
The security hold placed on your card at pickup is released rather than refunded, and the timing depends on your bank as much as on the rental company — a few days to a couple of weeks is normal. Our deposit guide covers typical hold sizes and which card types cause trouble.
Late charges usually fall into four categories: fuel, cleaning where the car comes back exceptionally dirty inside or ash-covered, damage, and traffic or parking fines forwarded with an administration fee attached. If one appears that you do not recognise, ask for the inspection report and the photographs behind it. With your own timestamped set, that conversation is short.
Usually not. Ordinary road dirt is expected in Iceland. What attracts a cleaning fee is the extreme end: caked mud, ash, sand through the cabin, pet hair, smoke or spilled food. Policies vary by operator, so check your contract — and if the car is genuinely filthy inside, a self-service wash on the way in normally costs less than the charge.
Most companies allow it, and many charge a one-way or relocation fee for the mismatch. Weigh that against the cost of getting from the city out to KEF afterwards. Our one-way rental guide covers how those fees are usually structured.
Report it rather than hoping it goes unnoticed. If you bought gravel protection it is normally covered, subject to the terms and any excess. Undeclared damage found at inspection is charged to the card on file and leaves you nothing to argue with.
Generally no. Rental days are priced as booked, and early returns are rarely refunded, particularly on discounted rates. If your plans change mid-trip, ask before you drop the keys; some operators will adjust, most will not.
Hours differ by company and by season, and nothing printed on a general guide page will be reliable for your date. Confirm with the company that holds the booking, and assume you may be using the key box if your flight leaves before dawn.