Marlow is about 23 miles from Heathrow by road, and a pre-booked taxi covers it in around 40 to 50 minutes, with operator quotes commonly ranging from roughly £50 to £115 depending on the company and vehicle. By train, the journey needs two changes and takes from about 58 minutes at its fastest, with fares from £21.50. Checked 2026.
How do I get from Heathrow to Marlow by train?
There's no direct train to Marlow from Heathrow, and the route is genuinely a bit more roundabout than most nearby towns because Marlow sits on its own short branch line. Independent train timetable data shows the journey needs two changes: typically the Elizabeth line or Heathrow Express into Paddington, a Great Western Railway service out to Maidenhead, and then the Marlow branch line (sometimes nicknamed "the Marlow Donkey") for the final few stops through Furze Platt and Cookham into Marlow itself.
The fastest published journey time is around 58 minutes, though the average across the day, accounting for less convenient connection windows, runs closer to 1 hour 30 minutes. Fares start from about £21.50 booked in advance. Given the two changes, it's worth building in a comfortable connection window, particularly for the branch line service, which runs less frequently than the mainline legs.
Why the branch line matters
The Marlow branch is a single-track shuttle service between Maidenhead and Marlow, and it doesn't run as often as the Great Western mainline it connects to. If you're travelling with heavy luggage or on a tight schedule, missing one branch line connection can add a meaningful wait, which is one reason many travellers to Marlow choose a taxi instead despite the higher cost.
Taxi: cost and journey time
By road, Heathrow to Marlow covers about 23 miles, generally via the M4 and A404, and typically takes 40 to 50 minutes outside peak traffic. Taxi pricing for this route varies more than most: operator quotes found for this specific journey range from around £50 at the budget end to £80 to £115 for premium or executive fixed-fare services. That's a wide spread, so it's worth comparing at least two or three quotes before booking rather than assuming a single "typical" price, and confirming whether the quote includes waiting time if you're being met at arrivals.
This is a noticeably longer and more variably priced trip than shorter Heathrow runs like Windsor, reflecting both the extra distance and Marlow's position slightly off the main road corridors most airport taxi firms are set up for.
Comparing your options
| Option | Cost | Time | Best for |
|---|---|---|---|
| Taxi | ~£50 to £115 | 40 to 50 min | Door-to-door, avoiding two rail changes |
| Train (via Paddington and Maidenhead) | From £21.50 | ~58 min fastest, up to 1h30m average | Budget travel, no luggage concerns |
| Train + local taxi from Maidenhead | Rail fare plus short taxi fare | Variable | If the branch line connection is inconvenient |
Is there a bus or coach option?
Unlike some nearby towns with a dedicated RailAir coach link, Marlow doesn't have a direct Heathrow coach service. Coach and bus options generally involve travelling into a hub like Reading, Maidenhead or High Wycombe first and picking up a local bus from there, which rarely beats the train on time or the taxi on convenience for this specific trip. If you're weighing Marlow against a similar-distance destination with a more established coach network, see Heathrow to Reading, which does have a direct RailAir link.
Why people travel from Heathrow to Marlow
Marlow is a well-known Thames-side town in Buckinghamshire, known for its suspension bridge, riverside walks and a cluster of well-regarded pubs and restaurants, and it draws a steady stream of leisure visitors as well as people attending weddings, corporate away-days and the Marlow Regatta in the summer months. Because it's a smaller town without its own dedicated Heathrow coach link, transport planning here matters more than it does for larger hubs like Reading or Oxford that have direct services built specifically for airport traffic.
Timing your visit around the branch line
If you do choose the train, it's worth checking the Marlow branch line's timetable in advance rather than assuming a train will be waiting at Maidenhead. The branch runs less frequently than the Great Western mainline it connects to, so an awkward arrival into Maidenhead can mean a real wait for the connecting service, which is worth factoring into any tight schedule. Check the current branch line timetable before you travel rather than relying on an estimated gap between services.
Which to choose
For most travellers, a pre-booked taxi is the more reliable option given the two rail changes and the branch line's limited frequency, especially with luggage or a fixed onward commitment like a hotel check-in or event start time. If you're travelling light and comfortable with a longer journey and a bit of connection planning, the train is meaningfully cheaper and avoids traffic on the M4 corridor into the Thames Valley.
Marlow makes a good base for exploring the wider Thames Valley alongside places like the Cotswolds further afield. For the full range of coach, rail and taxi options from the airport, see the public transport page and the taxis page.