Is the train always cheaper than a taxi from Slough to Gatwick?

Only sometimes, and usually only for a single traveller with light luggage at an off-peak time. For two or more people, a fixed-price taxi split between passengers is usually cheaper overall and removes the risk of a missed connection.

How long does a taxi from Slough to Gatwick take?

It varies with M25 traffic, but it's one continuous journey with no changes, which makes total travel time far more predictable than the train alternative with its connection at a London terminal.

Is Heathrow or Gatwick closer from Slough?

Heathrow is considerably closer to Slough and is usually the quicker, cheaper run if your flight happens to depart from either airport.

Can four people share one taxi to Gatwick for one fixed price?

Yes, a standard saloon covers up to four passengers and their luggage for a single fixed fare, which is usually cheaper per person than four separate train tickets.

Airport travel · 2026-06-16 · You Want Taxi

Cheapest way from Slough to Gatwick

Slough to Gatwick is not a short hop, and it's one of the routes where people most often ask whether the train works out cheaper than a taxi. The honest answer depends on how many people are travelling and how much luggage is coming with them, not on which option looks cheaper in isolation.

The train option

By public transport, it's Slough station to Paddington or Slough to Reading, then across London or round via Reading to Gatwick, typically involving one change and a fair amount of walking between platforms with luggage. Off-peak fares for one adult can come in cheaper than a taxi on paper. But that price is per person — for two or more travelling together, or anyone with more than a single case, the train stops being the cheaper option quickly once you add up multiple tickets and factor in the time spent moving between platforms at a London terminal.

Where the connection risk sits

The weak point isn't the journey itself, it's the change. A tight connection window with a case and an early flight to catch is fine most of the time and genuinely stressful when a service is delayed by even ten minutes. That risk doesn't show up in the ticket price, but it's a real cost if it goes wrong.

The taxi option

A fixed-price Slough to Gatwick taxi runs a fixed fare agreed at booking, more for an executive car — that price covers up to four passengers and their luggage in one saloon, door to door, no changes, no stations, no walking to a platform with a suitcase. Split three or four ways, it's usually cheaper per person than three or four individual train fares, and it removes the single biggest risk of the train option: a missed connection with a flight to catch.

Where the taxi clearly wins

Two or more people travelling together
Early morning or late evening departures, when train frequency drops and connections get tighter
Heavy luggage — golf clubs, multiple large cases, a pushchair
Any flight where a missed connection is not an option

For larger groups, our minibus covers up to eight passengers on the same fixed-price basis, which is often the cheapest per-head option of all once you're travelling as a family or a group of friends.

Where the train can still make sense

A single traveller with one bag, going at a normal daytime hour with no particular time pressure, can sometimes do it cheaper by train. It's a longer, less certain journey, but the fare alone can be lower for one person with a straightforward connection and no rush.

What about other airports from Slough?

If Gatwick isn't your only option, it's worth comparing against Heathrow, which is considerably closer and usually the quicker, cheaper run if your airline flies from both. We also run fixed routes from Slough to Luton and Stansted if your flight happens to be at one of those instead.

Timing the journey

The M25's western and southern stretches are the main variable on this run, particularly in the evening rush. Give us your flight number when you book and we'll factor in enough margin that ordinary traffic doesn't threaten your check-in — the same applies for a return pickup, where we track the actual landing time rather than the scheduled one, exactly as described in our post on what happens if your flight is delayed and a taxi is already booked.

Executive travel for business trips

If the trip is for business rather than a holiday, it's also worth considering an executive car rather than a standard saloon. The fixed fare is higher, but for a single business traveller who values a quieter, more comfortable journey and doesn't want to think about luggage limits or a shared vehicle, it's a reasonable trade against the extra cost, particularly for an early departure before a full day of meetings.

Booking around the journey time

Slough to Gatwick by road typically runs a little over an hour outside peak traffic, longer if you catch the M25 at a bad time. Because there's more distance and more motorway involved than our shorter local runs, it's worth building a slightly bigger margin into your pickup time than you would for, say, a Slough to Heathrow transfer — better to arrive at the terminal with time to spare than to cut it fine on a route with more variables in it.

The actual comparison to make

Don't compare a single train ticket to a taxi fare — compare the total cost for everyone travelling, plus the value of not standing on a platform at 5am with a suitcase. For most groups of two or more, the taxi is both cheaper overall and considerably less stressful. Get in touch for a fixed price before you book either way, so you're comparing real numbers rather than guesses.