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US airport driving guides: access roads, parking and drive times

Getting to the airport is the part of a flight you actually drive, and it is the part that goes wrong. Each guide covers the access roads, how the terminals are arranged, the parking trade-off between cost and walking distance, and what makes the drive unpredictable at that particular airport.

The distances are measured from each airport's own coordinates rather than asserted, then run through the same estimator as the rest of the site, so an airport is treated as a point like any other. Times assume free-flowing traffic and no allowance for parking, the shuttle or check-in — add your own margin, generously, at a busy hour. Driving in the city itself is covered separately in the city driving guides.

What the spread between these 15 airports actually looks like

The distance from an airport to the city it serves is more variable than most people expect, and it is not correlated with how big the airport is. Across these 15 airports in 12 states, the median run to downtown is about 12 miles. BOS is the closest at roughly 4 miles — close enough that the drive is shorter than the walk from the terminal door to some of its gates — while DEN sits about 23 miles out. 6 of the 15 are inside ten miles of their city center and only 1 are beyond twenty.

That spread is why a single rule of thumb for airport departures does not work. An hour before check-in is generous at an airport four miles from where you are staying and reckless at one twenty-four miles away on a weekday morning. The figure in the table is the free-flowing estimate, which is the useful floor to plan from and never the number to plan to; the individual guides say where the traffic reliably builds and which access road has no alternative if it closes.

Two other things the table does not show. The first is that the drive to an airport is usually the only part of the journey you control, so it is the part worth over-budgeting — a missed flight costs more than an hour spent waiting at a gate. The second is that several of these airports are genuinely awkward to leave rather than to reach, because rental returns, ride-share pickup zones and long-stay car parks are all placed to suit the terminal rather than the driver. Each guide covers the parking trade-off explicitly for that reason: cost against walking distance, and which of the two you are actually paying.

If you are driving to an airport from further out rather than from its own downtown, the route pages handle that directly — work out any city pair from the distance calculator on the home page, or start from the most looked-up routes. For a long drive before a flight, the road safety guides are the more relevant set: arriving tired at an airport is its own problem.

Airport To downtown
ATL — Hartsfield–Jackson Atlanta International Airport 11 mi
BOS — Logan International Airport 4 mi
CLT — Charlotte Douglas International Airport 8 mi
DEN — Denver International Airport 23 mi
DFW — Dallas/Fort Worth International Airport 19 mi
EWR — Newark Liberty International Airport 4 mi
IAH — George Bush Intercontinental Airport 19 mi
LAS — Harry Reid International Airport 8 mi
LAX — Los Angeles International Airport 16 mi
MCO — Orlando International Airport 12 mi
MIA — Miami International Airport 8 mi
ORD — O'Hare International Airport 19 mi
PHX — Phoenix Sky Harbor International Airport 5 mi
SEA — Seattle–Tacoma International Airport 15 mi
SFO — San Francisco International Airport 15 mi

Questions about driving to US airports

Which US airports are covered?
The fifteen busiest passenger airports in the United States, each with its own guide: Atlanta, Boston, Charlotte, Chicago O'Hare, Dallas/Fort Worth, Denver, Houston Bush, Las Vegas, Los Angeles, Miami, Newark, Orlando, Phoenix, Seattle and San Francisco. Each one covers the road approach, how the terminals are arranged, the parking trade-off and what makes the drive unpredictable there.

How is the distance from an airport measured?
From the airport's own published coordinates to the city center, then through the same estimator used everywhere else on the site. The airport is treated as a point like any other town, so nothing about the distance is asserted — it is calculated. That also means the figure is a road-distance estimate rather than a routed one.

Do the drive times allow for traffic?
No. Every time on these pages assumes free-flowing conditions and no stops, which is deliberate: a single number cannot describe a route that takes twenty minutes at ten in the morning and an hour at five in the afternoon. Treat the figure as the floor and add your own margin for the hour you are actually traveling.

Should you park at the terminal or in a long-stay lot?
It depends entirely on how long you are away. Terminal-adjacent garages cost more and save walking, which is worth it for a short trip or a drop-off. Long-stay lots are cheaper and connected by shuttle or an automated train, which makes them the better choice from about two days upward. The guides say which arrangement each airport uses.

Is driving to the airport better than the train?
Where a rail link exists it is usually more predictable, because it is unaffected by whatever the expressway is doing. Driving wins when you are coming from outside the transit network, traveling at an hour with no service, or carrying more than you want to move by hand. Each guide notes the alternative where there is one.

Why are there no parking prices on these pages?
Because they change, and a stale price is worse than no price. The guides describe the structure of the choice — close and expensive against further and cheaper — and leave the current rates to the airport's own website, which is the only source that is ever up to date.

Can you work out the drive from any city to an airport?
Each guide lists estimated drive times from the cities nearest that airport. For anywhere else, put the city and the airport's city into the calculator on the home page and you will get the distance, the drive time and the fuel estimate for that pair.

How far in advance should you leave for the airport?
Follow your airline's check-in guidance, then add the time the airport itself consumes: parking, the shuttle or transit train if you are in an outer lot, and the walk to the gate. At the larger airports that last stretch is a real part of the journey rather than a rounding error, which is the single most common planning mistake.