Chiltern Railways' fares from 2nd January 2012 additional split fare information

Now that Chiltern have increased the Anytime Fares to £56 single and £85 return between Birmingham and London via High Wycombe, it is time to revisit the Split Fares scenarios for this route...

Travelling from Birmingham Moor Street on the 0619 or the 0733 Monday to Friday? If you are travelling one way OR you know you can return from London Marylebone before 4pm or after 7pm (or on a Saturday / Sunday) then SPLIT the single fare at Banbury: £50.30 (£16.60 + £33.70); for the return journey buy a Super Off-peak through single for £24.90 (making a total return fare of £75.20). Of course, the Super Off-Peak return from London is only 10p more than the single so, as it lasts a month, you might as well buy it and have an effectively free journey whilst saving almost £10...

Travelling from Birmingham Moor Street on the 0546 or the 0815 Monday to Friday?
If you are travelling one way OR you know you can return from London Marylebone before 4pm or after 7pm (or on a Saturday / Sunday) then SPLIT the single fare at Bicester North: £41.30 (£16.40 + £24.90); for the return journey buy a Super Off-peak through single for £24.90 (making a total return fare of £66.20). Of course, the Super Off-Peak return from London is only 10p more than the single so, as it lasts a month, you might as well buy it and have an effectively free journey whilst saving almost £20...
If you need to return from London Marylebone between 4pm and 7pm Monday to Friday and can use the 1607 or the 1737 or the 1840, then SPLIT the return fare at Bicester North: £72.10 (£22.50 + £49.60) - a saving of almost £13

Chiltern cannot refuse to sell you these tickets and you DO NOT have to get off the train at the intermediate split fare station!