Does guarantee cover Underground delay

If I suffer delays on the Tube travelling to Euston and miss my connection then will I be covered to travel later (Advance ticket Euston -Glasgow) oyster on Tube

It depends. If you are simply doing a tube journey from one tube station to Euston tube, and your only National Rail ticket is your Euston-Glasgow ticket, then no. Although, if there is major disruption on the tube, you may be able to persuade the Euston ticket office to authorise travel on a later Euston-Glasgow train. (If this is your situation, next time consider buying an Advance from your London travelcard zone to Glasgow: they are normally the price of the Euston-Glasgow advance with an add-on for the single tube trip.)

If your tube journey is part of a through journey that started on National Rail, and was fully ticketed through to Euston (e.g. Woking to London Zone 1, not merely Woking to London Terminals), then having split your tickets should not prevent the "guarantee" applying so long as you allowed the required minimum time for the cross-London tube transfer.

And some on this forum would say that your Euston-Glasgow ticket, combined with e.g. a Woking-London Terminals ticket, should be enough (if you left the minimum time for the tube transfer from Waterloo or wherever).

sdrennan said:

If I suffer delays on the Tube travelling to Euston and miss my connection then will I be covered to travel later (Advance ticket Euston -Glasgow) oyster on Tube

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What is your full journey itinerary?

yorkie said:

What is your full journey itinerary?

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This has happened to me twice, I have just been dot the Virgin desk at Euston and they have endorsed my ticket no prob.

If you ask nicely and explain the circumstances, they might endorse your ticket.
It's happened to me before, no sob story or ranting, just explain.

philthetube said:

This has happened to me twice, I have just been dot the Virgin desk at Euston and they have endorsed my ticket no prob.

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Without knowing the details I cannot say if you were shown discretion or simply treated correctly.

My planned journey is Finchley central underground on Northern line to Euston.
Then on Virgin - Euston to Glasgow advance ticket. It is an early train so cant build to much buffer time to arrive at Euston earlier

As the journey starts on a non-National Rail mode on a non-National Rail ticket, you are not covered. In practice, discretion may be shown, and is more likely to be given if you allowed plenty of time and/or if major delays occurred. If the ticket office won't endorse the ticket, ask the Guard before boarding (if you can).

sdrennan said:

It is an early train so can't build too much buffer time to arrive at Euston earlier

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According to Traveline, the first tube from Finchley Central to Euston is at 0531. If that is going to cause problems if it is delayed, then for an earlier departure use the N20 night bus which runs every 30 minutes (leaving Stop D at Finchley Central at --14 and --44) and takes about 25 minutes

Thanks guys