Originally Posted by rruaco

Thanks for all the replies! Very helpful.

It sounds like I can only MFU flights booked direct via BA on my home country?



These two points seem contradictory?

If my home country is the UK, and I book the flights on the UK site with BA flight numbers on BA metal, I can MFU:

- Any flights at all?
- Any flight segment starting in the UK?
- Any itinerary starting in the UK?
- No flights at all on an itinerary that starts in another EU country?



There are sometimes pretty cheap open-jaw flights starting in Paris, more than just the saving in APD would account for. BA UK seems happy to sell them to you in the UK although it will insist on charging you in Euros.

I assume BA is trying to attract some French customers, so you get the PAR-LON leg for less than nothing, and the UK government pays for your Eurostar ticket by declining to charge you APD ^

(Jan 18-25, for example, Economy PAR-BOS-LHR is £20 cheaper than LHR-BOS-LHR or £30 cheaper as an AA code-share... but I have seen bigger discounts in the past. J is currently about £2k cheaper originating in Paris if you are happy with AA flight numbers - one flight on AA metal for either option.)