Swansea to Slough runs about 4 times a day, with the first departure around 06:48 and the last around 07:30. One passenger pays between €19.59 and €36.09, every fee included, depending on the operator and the way you travel. The fastest door to door is 2h 26m over 243 km, on services run by 2 operators across 2 modes.
What one seat costs
The spread between the cheapest and dearest typical fare on this corridor, across 2 operators and 2 ways of making the journey. The operator sets the price on the day.
Typical fares
€19.59 to €36.09
- 152%Moves across the booking window
When it runs, leaving Swansea
No operator has filed a timetable for this direction yet, so the first and last departure below follow the pattern of the corridor. Read them as the shape of the service day rather than as times to turn up for.
- 06:48First departure
- 07:30Last departure
- 4Services per day
- 25%Run direct
Great Western Railway runs this service and does not sell it here. Bookaway takes the payment.
Buying this trip
Bookaway lists departures for Swansea to Slough on your date, and you pay on their side.
See Swansea to Slough on Bookaway
Or compare on TrainlineOr compare on Trip.com
Partner link. We do not sell this ticket, and we earn nothing from this one.
Brittany Ferries runs this service and does not sell it here. AFerry takes the payment.
Buying this trip
AFerry holds the sailings between these two ports, with the crossing times and the fares.
See Swansea to Slough on AFerry
Or compare on BookawayOr compare on Direct Ferries
Partner link. We do not sell this ticket, and we earn nothing from this one.
Fares by date
What this journey usually costs, by departure date. It shows which days run dearer.
Typical fares
- about €35.54Mon14
- about €32.79Tue15
- about €33.33Wed16
- about €33.89Thu17
- about €30.04Fri18
- about €36.09Sat19
- about €34.44Sun20
- about €22.34Mon21
- about €22.34Tue22
- about €23.44Wed23
- about €23.99Thu24
- about €30.59Fri25
- about €29.49Sat26
- about €23.44Sun27
- about €21.79Mon28
- about €19.59Tue29
- about €22.89Wed30
- about €22.89Thu1
- about €21.79Fri2
- about €21.79Sat3
- about €21.79Sun4
Based on what this route has cost recently. The operator sets the price on the day, and the live fare is confirmed when you book.
The ferry gets you into Slough. It does not get you a bed, and neither do we.
A room in Slough for the night the ferry gets in
Sort by distance from Windsor & Eton Central and you can see which places are ten minutes on foot and which are not.
Search Slough on Booking.comOr compare on Expedia
Partner links. We do not sell accommodation. We earn a commission when a booking completes, and it never changes what you pay.
When to book Swansea to Slough
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €25.0990 days
- €21.2460 days
- €14.0945 days
- €17.3930 days
- €21.7921 days
- €23.4414 days
- €34.447 days
- €33.333 days
- €35.541 days
- Cheapest lead time
- Fares bottom out around 45 days ahead, at €14.09.
- How much it moves
- The gap between the cheapest and most expensive lead time is 152 percent. The most expensive point is €35.54, 1 days out.
- What that means
- Today sits inside the cheap window, which closes about 45 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Book now Fares on this route are lowest around 45 days ahead. You are inside that window.
This corridor, specifically
Facts that apply to Swansea to Slough and to no other route on the site.
Clocks
Both ends keep the same time, so the arrival is the departure plus the journey.
The shape of it
243 km
232 km as the crow flies, 5% further by the route services actually take. The bearing runs east.
Who lives at each end
300,352 → 164,793
Population at the departure city and at the arrival city, which is usually what decides how often anything runs.
How we know
0/4
4 of these connections were inferred from service-area overlap rather than observed in a timetable. We would rather say so.
The route
What the journey actually looks like
Direct or connecting, how far the route really runs, and what happens when a connection is missed.
- Direct or connecting
- 33% of the services we sell on this corridor run through without a change. The remaining 67% involve one connection.
- How far it really runs
- The route covers 243 km against 232 km in a straight line, a detour of 5 percent. Track and road geometry account for the difference.
- Where the change is
- Connections are made at Swindon, Didcot, Newport, Reading. The gap between arriving and leaving is 48 minutes, of which about 5 is walking.
- If the connection is missed
- The tightest connection we sell here has a 19 percent chance of not being made on the timetable alone. Part of this journey is a self transfer between separate tickets, so leave more time than the minimum and expect to check in again.
Who runs this route
The ferry gets in hours before any room is ready. Holding a bag is not what we sell.
Baggage storage near Windsor & Eton Central
Most of the points near Windsor & Eton Central open before the first train and close after the last one.
Check Slough on StasherOr try Bounce
Partner links. We do not run these networks. We earn a commission on a booking, and the price is the same as going direct.
Questions about Swansea to Slough
The questions people actually ask about this trip, answered from the same prices and times the page above is built on rather than written once and left to go stale.
How long does it take to get from Swansea to Slough?
The fastest journey from Swansea to Slough takes 2h 26m door to door, of which 1h 48m is spent moving, on the train. Most services take around 5h 55m, because that average includes slower stopping services and journeys with a connection. Times include reaching the terminal and leaving it at the far end.
How much does it cost to travel from Swansea to Slough?
The cheapest fare from Swansea to Slough is €19.59, as of September 13, 2026. A typical fare across the next three weeks is €34.99. Both figures are the total for one passenger, including taxes, supplier fees and our service fee, so nothing is added at checkout.
What is the cheapest way to get from Swansea to Slough?
The cheapest way from Swansea to Slough is by ferry, at €22.34 for one passenger on September 29, 2026. That journey takes 9h 50m door to door. Cheaper is rarely faster on this corridor, and the comparison table on this page shows what each mode costs against what it saves.
What is the fastest way to get from Swansea to Slough?
The fastest way from Swansea to Slough is by train, at 2h 32m door to door. Only 1h 48m of that is spent moving; the remaining 44m is reaching the terminal and leaving it at the far end. The cheapest fare on that mode is €36.09.
When should I book Swansea to Slough?
Fares from Swansea to Slough bottom out around 45 days before departure, at €14.09. Across the whole booking window the gap between the cheapest and the most expensive lead time is 152 percent, measured on September 13, 2026. Booking inside the last week has consistently cost more on this corridor.
Which day of the week is cheapest for Swansea to Slough?
Monday is the cheapest day to depart from Swansea to Slough, at €22.34. That is the median of 21 priced departure days across the next three weeks, as of September 13, 2026. Shifting a departure by one day is usually worth more than shifting the booking by one week.
Which month is cheapest for Swansea to Slough?
February is the cheapest of the next 6 months to travel from Swansea to Slough, at €14.09 for one passenger. Each month is priced on its fifteenth, so the comparison is like for like rather than a mix of weekends and midweek departures.
Who runs service from Swansea to Slough?
2 operators sell services from Swansea to Slough across 2 modes: Brittany Ferries, Great Western Railway. Journey times, fares and fare conditions differ between them, and the operator table on this page compares all of them on speed, flexibility and what is provided on board.
Is there a direct service from Swansea to Slough?
33 percent of the services we sell from Swansea to Slough are direct. The rest connect at Swindon, Didcot, Newport, Reading, with about 48 minutes between the two services. Both legs are sold on one booking, so a missed connection is rebooked at no charge.
How much CO2 does the journey from Swansea to Slough produce?
Traveling from Swansea to Slough by train produces about 8.0 kg of CO2 per passenger, the lowest of any mode on this corridor. The same journey by Ferry produces about 27.9 kg, roughly 3 times as much for one passenger.
Which station or terminal do services from Swansea to Slough use?
Services from Swansea to Slough by train leave from Swansea railway station and arrive at Windsor & Eton Central. Allow about 44m in total for reaching the departure terminal and leaving the arrival one, which is already included in every door to door time on this page.
Can I change or refund a ticket from Swansea to Slough?
2 of the 2 operators we sell from Swansea to Slough allow a change or a refund. A change on a changeable fare costs €5.00. The operator table on this page names which is which, and the condition is shown again before you pay.
Where these numbers come from
Places, coordinates, operators, which operator serves which pair, and every distance on this page are real and come from open data. Where a corridor has a filed timetable the departure times are real too, and ferry fares are the prices the operators publish themselves.
Derived from service area No carrier record names this exact pair. The operators listed publish a service area covering both places at a distance their mode plausibly carries people, which is evidence that the corridor is served and not evidence of a specific service. Pages state which, because presenting the two as the same thing would be dishonest.
Where no operator publishes a fare for a corridor, the price here is our own estimate, worked out from the real distance and the real operator through a fare curve that follows lead time, day of the week and season. It tells you roughly what the journey costs. It is not a seat anyone has agreed to sell, and the payment step will not take it.
Defined in full at Door to door, Fares, The booking window, Carbon, Distances
- On this page
- Every figure above was computed for Swansea to Slough on September 13, 2026: 243 km of route against 232 km in a straight line, 6 services a day, 2 operators a cheapest fare of €19.59, and 2h 26m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
Being on the water gives Slough a set of days out that do not start at a station. We do not sell those either.
Day trips out of Slough and across United Kingdom
Day trips that leave Slough in the morning and cover a good part of United Kingdom by evening.
See Slough on GetYourGuideOr browse Viator
Partner links. We do not sell tours or tickets. We earn a commission on a booking, and it never changes the price.
The two ends, compared
Swansea reaches 84 places in 1 countries on services we hold, over distances from 41 to 484 km. Slough reaches 68 places in 1 countries, from 17 to 380 km.
Other ways to make this journey
Leaving Swansea
- 84Places you can leave for
- 1Countries
- 6Operators
Arriving in Slough
Leaving Slough
- 68Places you can leave for
- 1Countries
- 14Operators