Brighton - Ashford fares via Hastings have been subject to a fare cap since the through service was introduced in December 2005,
Not quite. Only certain fares are protected or regulated, and hence subject to a fares cap. First Class fares and Standard Advance fares are never protected or regulated. Protected fares include Standard season tickets and Anytime Day Returns (SDRs) in commuter areas, and Off-Peak Returns (SVRs) elsewhere. The lowest Brighton - Ashford fare which can be bought on the day of travel, the Off-Peak Day Return (CDR), is not protected or regulated.
hence they are significantly cheaper than other routes.
Not always. Fares in the current National Fares Manual include:
Brighton - Ashford Intl
Route Hastings
CDR £15.00 Validity Code
B3
Standard 7-day season £60.00
First Class 7-day season £90.00.
Route Not Via London
CDR £15.00 Validity Code
B3
Standard 7-day season £60.00
First Class 7-day season £90.00.
They are especially cheap at the moment because Southern has brought in a temporary 50% reduction on the Ashford - Hastings leg for the duration of the line closure.
http://www.southernrailway.com/sout...works-southern-announces-special-fares-offer/
This is a good offer, but the reduction in the £15 CDR Brighton - Ashford Intl route via Hastings is only £1.80 (12%) if bought from
Southern.
At other times, the journey may be made either one way or day return for £12 using the Southern Daysave ticket:
http://www.southernrailway.com/tickets-and-fares/ticket-types/daysave/
This too is a good offer. I have used the ticket. But it cannot be bought on the day of travel. The requirement to buy 7 - 14 days in advance restricts its usefulness.
You couldn't use this any other route out of Ashford (e.g. via Tonbridge) because the other routes are operated by Southeastern.
This is
not true. A passenger with a £15 CDR Brighton - Ashford Intl route via Hastings may travel via Tonbridge in accordance with
NRCoC Condition 13(e) upon payment of
the difference between the price paid for the ticket you hold (£15) and
the price of the lowest priced ticket(s) available for immediate travel that would have entitled you to travel by that route (£15), that is zero. A passenger with a £13.20 CDR Brighton - Ashford Intl route via Hastings would pay an excess fare of 90p for each leg of the journey travelled via Tonbridge.
The fact that parts of other routes are operated by different train companies is not relevant here.
NRCoC Condition 10 allows the validity of a ticket to be restricted to travel in the trains of a particular Train Company or Train Companies
if the restriction is shown on the ticket. This is not shown in this instance, therefore an excess fare from one route to another is allowed by Condition 13(e).
Finally, welcome to the forum
richardm!