I've gone for return prices, as that's normally what I get. For splitting to be valid, your train must stop at the station at which you are splitting your ticket. You don't actually have to get off, though!
Split tickets of same validity
This table only shows split tickets that are of the same validity as the non-split ticket, so can safely be used on exactly the same trains. Obviously, if you're willing to wait until peak time ends, you can probably get a cheaper ticket than the peak price; please leave an explanation in the Notes column.
| Journey | Split at | Normal price | Split price | Saving | Notes |
| Cheltenham - Manchester | Wolverhampton | £54.60 Saver Return | £42.90 Saver Returns | 21% | Obviously, if there's a SuperSaver, get that |
| Penzance - Bristol | Exeter | £54 Saver Return | £49.50 Saver Returns | 8% |
| Penzance - Taunton | Plymouth | £42 Saver Return | £38 Saver Returns | 10% |
| Penzance - Exeter | Plymouth | £29.50 Saver Return | £27.50 Saver Returns | 7% |
| Penzance - Birmingham | Cheltenham | £106 Saver Return | £76.50 Saver Returns | 28% |
| Plymouth - Birmingham | Cheltenham | £84.30 Saver Return | £67.50 Saver Returns | 20% |
| Exeter – Birmingham | Bristol | £63.90 Saver Return | £58.10 Saver Returns | 9% |
| Bristol – Birmingham | Cheltenham | £38.10 Saver Return | £31.50 Saver Returns | 17% |
| Bristol – Birmingham | Cam and Dursley | £38.10 Saver Return | £27.70 (£10.20 (two Standard Day Singles) + £17.50 Saver Return) | 27% | Not all trains go to C&D, will have to change at Cheltenham |
| Plymouth - Bristol | Exeter | £41 Saver Return | £33.50 Saver Returns | 18% |
| Exeter - Cheltenham | Weston-super-mare | £42.10 Saver Return | £34 Saver Returns | 19% |
| Taunton - Birmingham | Cheltenham | £53.10 Saver Return | £47.90 Saver Returns | 10% |
| Taunton - Cheltenham | Bristol | £30.40 Saver Return | £29 Saver Returns | 5% |
| Bath Spa – Birmingham | Cheltenham | £40.60 Saver Return | £34.50 Saver Returns | 15% |
| Birmingham - Oxford | Banbury | £26 Saver Return | £17.40 (£9.60 Chiltern Metro, £7.80 Cheap Day Return) | 33% | Off-peak, going for the day only |
| Birmingham - Oxford | Banbury | £42 Open Return | £19.30 (£11 Chiltern Metro, £8.30 Standard Day Return) | 54% | Peak, going for the day only |
| York - Edinburgh | Berwick-upon-Tweed | £69.30 Saver Return | £65.70 Saver Returns | 5% |
| Oxford – Birmingham | Banbury | £25.90 Saver Return | £17.30 (£6 Saver Return + £11.30 ) | 33% | £22.30 if you buy Oxford - Coventry instead and go via Solihull, £24.70 if you change at Leamington and get two Singles from there) |
| Oxford – Birmingham NS | Leamington Spa | £21 Open Single | £16.10 (£10.40 Open Single + £5.70 Open Single) | 23% |
| Oxford – Coventry | Leamington Spa | £22.30 Saver Return | £19.50 (£13.30 Saver Return + £6.20 (two Standard Day Singles) | 13% |
| Oxford – Exeter | Swindon | £57 Saver Return | £46.50 Saver Returns | 18% |
| Oxford – Taunton | Reading,Newbury | £128 Standard | £73.70 (£18.90 Awaybreak or £20ish singles to Reading, £12.80 singles to Newbury, £42 saver return to Taunton) | 42% | Peak travel only, otherwise get the £44 Saver Return |
| London – Newcastle | Peterborough | £224 Standard Open | £144.90 (£68 Standard Open, £76.90 Saver Return) | 35% | Peak travel only, otherwise get the £95.30 Saver Return direct |
| Bristol – Nottingham | Cheltenham | £53.10 Saver Return | £47.80 Saver Returns | 10% |
| Birmingham - Manchester | Stoke | £29.10 Saver Return | £26.50 Saver Returns | 9% |
| Reading - Birmingham | Banbury | £38.20 Saver Return | £33.70 (£20.10 Network AwayBreak + £13.60 Saver Return) | 12% |
| Oxford – Cardiff | Swindon | £43 Saver Return | £23 (£13 Saver Return + 2x£5 Advanced Single) | 47% | Avoid saver returns Swindon-Cardiff: bizarrely expensive |
| Edinburgh – Oxford | Birmingham NS,Banbury | £33.50 Advance Single | £27.50 (three individual Advance Singles) | 20% |