To be more accurate, end-on-end fare construction allows you to build more than one itinerary into a single ticket. Since there is only one series of coupons, there is no nesting.

Nesting is the practice of flying an itinerary after completing the outbound journey, but before completing the inbound journey of a different ticket.

If the nested itinerary takes you back to the point of origin (or a co-terminal) of the first ticket, then that is considered back-to-back. If you go to a third city, then

There is also end on end ticketing which requires 2 of more tickets so it is considered as nesting.

So your definition of nesting is the same as the IT definition.

The back-to-the-point-of-origin scenario is one for which a need comes up quite often (at least for me) in "real life." Here's the situation: I'm on a vacation - perhaps for 3 weeks - and the need arises for me to return to the point of origin for a short time - perhaps one day (a business emergency). So I buy a return ticket back to the point of origin and, upon return from that trip, resume my vacation.

So that's nesting and back-to-back. Possibly, depending on the fares, it might be considered illegal. (??) But I can't imagine a carrier objecting to this; that would be beyond unreasonable.

So that middle ticket is most likely a full fare anyways. I don't see anything wrong with that.

Like I said - if you fly all segments, then you'll most likely be fine. Just don't try and pull back to back stunts by booking thru your friendly TA, they could get in big trouble.

It's when you start combining back to back and throwaway ticket and develops a trend - then you'll raise a flag at YWG for sure.

In theory - AC would expect you to pay a change fee to move up your return date. Then buy another ticket to resume your vacation.

OK so if I understand this.. Using outbound of ticket A and returning home with the outbound of ticket B within the same week (no Saturday) and not using both inbound tickets is illegal. Will destina tell me this if I book through them? If not, how is a person to know and how can this be illegal if THEY are the ones selling it to me in the first place!!?

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Prestige

Well, before you purchase:
I guess it's up to you to find out the tariffs.

But what if I had not yet satisfied a minimum stay requirement? In that case I wouldn't be permitted to change the ticket. What if I had someone else travelling with me on a companion ticket? What if the final return flight is now oversold, so I wouldn't be able to re-purchase a seat on the flight I'm already on? What if the client who I need to return to visit insists on purchasing me the ticket? There are a lot of potential problems that may arise by messing with the original ticket. It's much simpler just to buy a new one.

Of course the discussion is really somewhat academic. I'll buy whatever tickets I need to travel when and where I need to. It's not my intention to circumvent any rules.

Then you pay the difference between what you paid and what the fare would have been if you were to buy a ticket for that return date in the first place + any service charge.
If i recall correctly - AE companion ticket only require you to be travelling with them one flight. The only strict requirement is that routings must be exactly the same for both. Then that's too bad. That's not AC's fault.
Then that's an issue between your client and you. Not AC's problem to take care of such issue.

http://www.flyertalk.com/forum/biggrin.gif http://www.flyertalk.com/forum/biggrin.gif http://www.flyertalk.com/forum/biggrin.gif Are you kidding? Destina almost blows a cerebral fuse just by managing to complete a simple booking. Detecting an illegal booking combination would be beyond rocket science for them. Maybe after 100 years of R&D.

Yes. In this case it's much better to allow the airline to throw the ticket away for you.

But I don't think RD will last 100 years.

Just looking into buying tickets the ticket to go home -- someone explain to me why LHRYUL = 700CAD (AC) and LHRYOW = 975CAD (UA) -- AC is > 1000CAD?!? That's bloody murder!

And, does anyone have a clue of the loads on 869 and 848 / 862 in March and April? (I'm obviously trying to get overbooking compensation...)

Because BA flies LHR-YUL as well.

I realise this -- but does AC realise that people can just as easily get to YUL then take the train from Dorval to Ottawa on Via AirConnect?

So I guess this is an excellent example of price gauging because of no competition... and I could technically write to Bruce Hood?

I don't want to flame up this old topic but...

I'm not sure that AC could possibly have anything to object to with this situation...you are not trying to cheat AC out of any revenue with this itinerary and are well within your rights to buy a return ticket from your original destination to your point of origin.

I don't even consider this nesting, since the point of that is to get two return trips to a certain destination for less than you would pay by buying both tix in your home market.