London to Barcelona by train

At St Pancras:

Eurostar is currently suggesting that Standard Class And Standard Premier ticket holders should be at the Eurostar departure area in St Pancras International 90 mins before departure; and that Business Premier ticket holders should be there 45-60mins prior to departure.

The departure gates will close 30 mins prior to departure for Standard Class And Standard Premier ticket holders; and 15 mins prior to departure for Business Premier ticket holders.

Our guide to taking a Eurostar from London is here.

Note that London is in a different time zone to mainland Europe, it is one hour behind; hence what can seem like a discrepancy between the journey time and the interval between the departure and arrival times.

Departing from the Gare De Lyon

The Eurostar will arrive in Paris at the Gare Du Nord, but the train on to Barcelona will depart from the Gare De Lyon.

This guide explains how to make the transfer between the two stations by RER train.

The usual daily Eurostar from London typically departs from St. Pancras at around 10:30 and it provides around 1hr 5min to make the transfer across Paris from the Gare Du Nord to the Gare De Lyon, into the train on to Spain, which will typically depart at 14:54.
Making that transfer across Paris by RER train will usually take around 30 mins, so this combination allows 35 mins of contingency for delays.
You won't need to 'check-in' for the Barcelona train.

Though if you would prefer more time in Paris to make the transfer, the preceding train from London departs at around 09:30 daily - if you would rather depart earlier than 10:30 you will need to book separate tickets per train.

Book Early And Save: Yes

Online bookings open: up to 6 months ahead of the travel date
This booking period tends to be shorter when looking up journeys between mid August and mid October.

Seat reservations are automatically included when booking tickets for all trains.

Eurostar does not sell tickets for this journey.

Eurostar train's general ticket terms:

'Customers can exchange tickets for travel in Standard and Standard Premier class multiple times without paying an exchange fee, as long as tickets are exchanged 7 days or more before the departure time of their individual journey
Though if the new ticket option is more expensive the difference in price will need to be paid, but if it is cheaper the price difference won't be refunded.
But make the exchange within 7 days of the individual journey and an admin fee of £30 will need to be paid, along with the price difference
Tickets to travel in Standard and Standard Premier class are not refundable.
In contrast tickets to travel in Business Premier Class can be refunded and they can be exchanged to alternative departures without paying the admin fee, or the price difference'.
Eurostar's full ticket terms and conditions are here .

General ticket terms for TGV InOui trains

The terms on SNCF Connect state:
'Tickets can only be exchanged (adjustment to the current fare) and refunded prior to departure: 40% of the price 6 days prior to departure (€15 max fee). From 30 minutes prior to departure, tickets can be exchanged up to two times (for the same day and the same journey), and are non-refundable after the first exchange'.
Which could be clearer, but it seems as though the three key things to be aware of are:

1. Exchanges and refunds are free up to 7 days before departure.
2. If you are travelling on a TGV InOui train and want to amend your booking in the 6 days before departure, you must pay an amendment fee of €19 per person per person for an exchange or a refund.
3. In the 30 minutes before departure, refunds cannot be requested and exchanges are only allowed for the same journey later that day. The same amendment fees apply to the exchange.

Making the connection in Paris:

There is relatively new E.U. legislation which protects travellers against financial loss in the event of missed connections due to train delays, but it only applies to 'through tickets'.
The Eurostar terms and conditions specifically state that when booking journeys which combine Eurostar + Eurostar Thalys trains 'through tickets' will be issued.
'However, 'for all other journeys that combine a Eurostar Service and a service provided by another carrier (such as the TGV on from Paris) including when purchased in a single commercial transaction, those tickets will be separate contracts and issues regarding delays, missed connections, cancellations, compensation, and the management of aftersales will be handled accordingly'.

But SNCF, which operates the train on to Barcelona, has signed up to Agreement on Journey Continuation (AJC) policy for when a traveller holds separate transport 'contracts' for an end-to-end journey involving more than one train.
So this agreement applies both when 'a bundle' of tickets / contracts is issued as the result of a single transaction - and if travellers have bought several different tickets for their journey, even from different sales channels/ticket providers.
As long as the passenger had planned enough connecting time to change trains (called “reasonable connecting time”), the AJC will apply.~
So if you want to book separate tickets for the trains to and from Paris, to give more time to make the transfer across Paris, the AJC should protect you from re-booking.

So in usual* circumstances, if a delay to a Eurostar has caused a booked connection on to Barcelona to be missed, replacement tickets/reservations should be issued at the Gare De Lyon.
*= But that new E.U legislation specifically states that in exceptional circumstances, the train operators do not need to issue replacement tickets - and the terms and conditions on the SNCF Connect website reiterate this.
These exceptional circumstances specifically stated in Regulation (EU) 2021/782 of the European Parliament include:

• extraordinary circumstances not connected with the operation of the railway, such as extreme weather conditions, major natural disasters or major public health crises...
• ...the behaviour of a third party... such as persons on the track, cable theft, on-board emergencies, law enforcement activities or sabotage.

Using rail passes:

A limited quota of reservations is available to users of Eurail and InterRail passes on both the Eurostar train and the TGV on to Barcelona.

On Monday to Friday the positive of taking this combination of trains is the avoidance of having to make the transfer across Paris from the Gare du Nord to the Gare de Lyon.
Heading to Bruxelles from London may seem a tad bizarre when taking a journey to Barcelona, but because of the high speed lines, it's not a particularly consequential diversion off of the direct route.

The transfer times between trains will be around 1hr 5min in Bruxelles and around 35mins in Lyon, which will typically allow the connections to be relatively uncomplicated.
If the trains are on schedule you won't be rushing through an unfamiliar station against the clock, and neither will you be hanging around awaiting departure.

Though the potential negative is that those transfer times won't allow much contingency in the unlikely event of delayed trains.
Completing the end-to-end journey in a single day is dependent on making that 35 min connection in Lyon.

At St Pancras:

This journey option is depending on taking the first Eurostar of the day from London to Bruxelles, which typically departs from St Pancras on Monday to Friday only at around 06:15am.

Eurostar is currently suggesting that Standard Class And Standard Premier ticket holders should be at the Eurostar departure area in St Pancras International 90 mins before departure; and that Business Premier ticket holders should be there 45-60mins prior to departure.

The departure gates will close 30 mins prior to departure for Standard Class And Standard Premier ticket holders; and 15 mins prior to departure for Business Premier ticket holders.

Our guide to taking a Eurostar from London is here.

Note that London is in a different time zone to mainland Europe, it is one hour behind; hence what can seem like a discrepancy between the journey time and the interval between the departure and arrival times.

At Bruxelles-Midi:

The guide to making onward connections from a Eurostar in Bruxelles.
Though note that because the Eurostar will be heading on to Amsterdam, you will arrive in the same part of Midi-station that the TGV on from Bruxelles will depart from.

Book Early And Save: Yes

Online bookings open: up to 6 months ahead of the travel date
This booking period tends to be shorter when looking up journeys between mid August and mid October.

Seat reservations are automatically included when booking tickets for all trains.

Eurostar does not sell tickets for this journey.

Eurostar train's general ticket terms:

'Customers can exchange tickets for travel in Standard and Standard Premier class multiple times without paying an exchange fee, as long as tickets are exchanged 7 days or more before the departure time of their individual journey
Though if the new ticket option is more expensive the difference in price will need to be paid, but if it is cheaper the price difference won't be refunded.
But make the exchange within 7 days of the individual journey and an admin fee of £30 will need to be paid, along with the price difference
Tickets to travel in Standard and Standard Premier class are not refundable.
In contrast tickets to travel in Business Premier Class can be refunded and they can be exchanged to alternative departures without paying the admin fee, or the price difference'.
Eurostar's full ticket terms and conditions are here .

General ticket terms for TGV InOui trains

The terms on SNCF Connect state:
'Tickets can only be exchanged (adjustment to the current fare) and refunded prior to departure: 40% of the price 6 days prior to departure (€15 max fee). From 30 minutes prior to departure, tickets can be exchanged up to two times (for the same day and the same journey), and are non-refundable after the first exchange'.
Which could be clearer, but it seems as though the three key things to be aware of are:

1. Exchanges and refunds are free up to 7 days before departure.
2. If you are travelling on a TGV InOui train and want to amend your booking in the 6 days before departure, you must pay an amendment fee of €19 per person per person for an exchange or a refund.
3. In the 30 minutes before departure, refunds cannot be requested and exchanges are only allowed for the same journey later that day. The same amendment fees apply to the exchange.

Missing the connections in Bruxelles and London

There is relatively new E.U. legislation which protects travellers against financial loss in the event of missed connections due to train delays, but it only applies to 'through tickets' - and 'through tickets' won't be issued for this journey,.

However, SNCF, which operates the train on to Lyon; and Renfe, the operator of the train on to Barcelona, have both signed up to the Agreement on Journey Continuation (AJC) policy
Though it won't cover the cost of the required overnight accommodation in Lyon, in the event of a delay to the train from Bruxelles - causing this essential connection to be missed.
And you will also probably need to re-book for the next day's train on to Barcelona.

On Saturdays only, the positive of taking this combination of trains is the avoidance of having to make the transfer across Paris from the Gare du Nord to the Gare de Lyon.

The transfer times between trains will be around 1hr 35min in Lille and around 35mins in Lyon, which will typically allow the connections to be relatively uncomplicated.
If the trains are on schedule you won't be rushing through an unfamiliar station against the clock, and neither will you be hanging around awaiting departure.

Though the potential negative is that those transfer times won't allow much contingency in the unlikely event of delayed trains.
Completing the end-to-end journey in a single day is dependent on making that 35 min connection in Lyon.

At St Pancras:

On Saturdays this journey option is typically dependent on taking the first Eurostar of the day from London to Lille, which typically departs from St Pancras at 07:04.
There isn't a departure at this time on the other days of the week.

Eurostar is currently suggesting that Standard Class And Standard Premier ticket holders should be at the Eurostar departure area in St Pancras International 90 mins before departure; and that Business Premier ticket holders should be there 45-60mins prior to departure.

The departure gates will close 30 mins prior to departure for Standard Class And Standard Premier ticket holders; and 15 mins prior to departure for Business Premier ticket holders.

Our guide to taking a Eurostar from London is here.

Note that London is in a different time zone to mainland Europe, it is one hour behind; hence what can seem like a discrepancy between the journey time and the interval between the departure and arrival times.

Making the connection at Lille-Europe:

The guide to making a connection in Lille.
The Eurostar will typically schedule to arrive in Lille more than 1hr 30mins prior to the departure of the train on to Lyon.

At Lyon-Part Dieu station

The train from Lille is scheduled to arrive in Lyon Part-Dieu station 33 mins prior to the departure of the AVE train train on to Barcelona.
Making the connection in Lyon in time is essential to reaching Barcelona by the end of the day, there aren't any later combinations of trains, which will reach Spain by the end of the day.

Book Early And Save: Yes

Online bookings open: up to 6 months ahead of the travel date
This booking period tends to be shorter when looking up journeys between mid August and mid October.

Seat reservations are automatically included when booking tickets for all trains.

Eurostar does not sell tickets for this journey.

Eurostar train's general ticket terms:

'Customers can exchange tickets for travel in Standard and Standard Premier class multiple times without paying an exchange fee, as long as tickets are exchanged 7 days or more before the departure time of their individual journey
Though if the new ticket option is more expensive the difference in price will need to be paid, but if it is cheaper the price difference won't be refunded.
But make the exchange within 7 days of the individual journey and an admin fee of £30 will need to be paid, along with the price difference
Tickets to travel in Standard and Standard Premier class are not refundable.
In contrast tickets to travel in Business Premier Class can be refunded and they can be exchanged to alternative departures without paying the admin fee, or the price difference'.
Eurostar's full ticket terms and conditions are here .

General ticket terms for TGV InOui trains

The terms on SNCF Connect state:
'Tickets can only be exchanged (adjustment to the current fare) and refunded prior to departure: 40% of the price 6 days prior to departure (€15 max fee). From 30 minutes prior to departure, tickets can be exchanged up to two times (for the same day and the same journey), and are non-refundable after the first exchange'.
Which could be clearer, but it seems as though the three key things to be aware of are:

1. Exchanges and refunds are free up to 7 days before departure.
2. If you are travelling on a TGV InOui train and want to amend your booking in the 6 days before departure, you must pay an amendment fee of €19 per person per person for an exchange or a refund.
3. In the 30 minutes before departure, refunds cannot be requested and exchanges are only allowed for the same journey later that day. The same amendment fees apply to the exchange.

Missing the connections in Lille and London:

There is relatively new E.U. legislation which protects travellers against financial loss in the event of missed connections due to train delays, but it only applies to 'through tickets' - and 'through tickets' won't be issued for this journey,.

However, SNCF, which operates the train on to Lyon; and Renfe, the operator of the train on to Barcelona, have both signed up to the Agreement on Journey Continuation (AJC) policy
Though it won't cover the cost of the required overnight accommodation in Lyon, in the event of a delay to the train from Bruxelles - causing this essential connection to be missed.