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Odd things are happening when you add a return to a one-way British Airways 2-4-1 flight ticket

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British Airways seems to have tweaked its rules on how you can book a return ticket using a British Airways American Express 2-4-1 voucher, assuming you want to book as soon as tickets are released.

Let me recap the position for the benefit of readers who are not fully familiar with it:

Unlike most airlines, BA guarantees to release 2 x Club World or Club Europe seats and 4 x World Traveller or Euro Travellers seats on EVERY flight as soon as booking opens up at 355 days before departure.

Many more seats, including First and World Traveller Plus, are usually made available over the next 355 days.  However, if you absolutely MUST travel on a certain date to a certain place, your only guarantee of Avios tickets is to call an open BA call centre at midnight (1am during BST) 355 days before departure and grab some of the six guaranteed seats.

The reason you need to call – even though the seats also appear online at midnight – is that call centre agents can put tickets on hold during the payment process.  If you book online, it doesn’t matter if the seats are in your basket or not.  They are not yours until you’ve filled in all the passenger and payment details and hit ‘Pay’.  You have usually lost them to a call centre agent by that point.

The obvious snag with this process is that you can only book your outbound flight initially.  You need to wait 7-10 days (or however long you plan to be away) before the return flight opens up.

So far so good.

The historic position for booking your return flight was this:

You would call British Airways and tell them you wanted to add a return flight to an existing one-way booking

The call centre would do this and charge you the additional Avios and the difference between the taxes you paid and the total taxes for a return flight

BA even waived the £35 per person change fee

However, in the last year or so BA has allowed you to do something else:

You book the two return flights online for full Avios (this requires you to have enough Avios to do this) and full one-way taxes

At your convenience, you call British Airways.  The two bookings are merged into one – leaving you with just one booking reference – and you are refunded the additional Avios you used for the return flight and any excess taxes paid.

I think the reason BA wanted to encourage this was to reduce the volume of calls at midnight.

British Airways Premium Plus 241 voucher

What has changed?

According to reports from HfP readers and Flyertalk users over the last few weeks, BA is now implementing a new position if you book your return flights online and try to merge them with an existing outbound flight.

When you call up:

BA refunds you the extra Avios you used for the 2nd ticket to reflect the fact it is ‘2 for 1’

You do NOT get your outbound flight merged into your inbound flight.  This means that you retain two separate booking references.

You do NOT get any excess taxes and charges refunded.  You are stuck with paying 2 x one-way taxes and charges rather than the taxes and charges on a return flight.

Why is this is a problem?

The taxes and charges on 2 x one-way flights are NOT the same as those for a return flight. 

This is because BA manipulates its charges based on what the local market will bear.  In particular, tickets which start in North America incur substantially higher charges than those which start elsewhere.

Here’s an example:

Return Club World Avios redemption to San Francisco:  £662.57

One-way Club World Avios redemption TO San Francisco:  £440.37

One-way Club World Avios redemption FROM San Francisco:  £485.90 (+ £440.37 = £926.27)

People who have been booking their return flight separately and asking BA to merge it into an existing 2-4-1 redemption are now having to pay an additional £527.40 (£263.70 x 2) in taxes and charges for a couple.

How can you avoid this additional cost?

If you need to contact British Airways to add a return leg to an existing 2-4-1 one-way booking, do NOT book the return online and call BA to merge the two flights together.  You are likely to end up overpaying your taxes and charges.

Instead, call up British Airways and ask them to book the return seats and add them to your existing booking.  Your wallet will thank you.

You can learn more about how the British Airways American Express 2-4-1 voucher works in this ‘Avios Redemption University’ article.

PS.  There are a couple of places where this trick could work in your favour.  Some countries cap the charges that airlines can add to their tickets.  Some ban them entirely.

Here is an example for Hong Kong:

Return Club World Avios redemption to Hong Kong:  £576.37

One-way Club World Avios redemption TO Hong Kong:  £377.37

One-way Club World Avios redemption FROM Hong Kong:  £34.50 (+ £377.37 = £411.87)

In this case, you SHOULD book the return leg of a 2-4-1 online and call BA to have half of the Avios refunded.  As long as they keep your two bookings separate, a couple will save £329 (£164.50 x 2) in taxes and charges.


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As a reminder, there are various ways of earning Avios points from UK credit cards.  Many cards also have generous sign-up bonuses!

In February 2022, Barclaycard launched two exciting new Barclaycard Avios Mastercard cards with a bonus of up to 25,000 Avios. You can apply here.

You qualify for the bonus on these cards even if you have a British Airways American Express card:

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There are two official British Airways American Express cards with attractive sign-up bonuses:

British Airways American Express Premium Plus

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You can also get generous sign-up bonuses by applying for American Express cards which earn Membership Rewards points. These points convert at 1:1 into Avios.

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You should also consider the British Airways Accelerating Business credit card. This is open to sole traders as well as limited companies and has a 30,000 Avios sign-up bonus.

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American Express Business Gold

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Click here to read our detailed summary of all UK credit cards which earn Avios. This includes both personal and small business cards.

Comments (99)

This article is closed to new comments. Feel free to ask your question in the HfP forums.

  • Genghis says:

    Is this news? I’ve been writing about this since at least February.

    • pauldb says:

      I might be wrong but I think you’ve posted yourself that you can call up and have a choice of whether to merge the booking (TFC recalculated) or to leave them separate???

      The question is whether the first option has been taken away.

    • Rob says:

      Hit a tipping point 🙂

  • BJ says:

    A couple of points. Firstly, this is not new, it has not just been going on for the last few weeks. It has been going on for at least the last four months according to my own experience. Secondly, the advice on the need to call at midnight is far too strong IMO, people risk being on hold or running into a less competent CSA, or one who is having a bad day and that is just as likely as anything else to cost them their seats. So far I have never failed to successfully book awards t-355 online at midnight. I know it will happen sometime but risks are reduced by having profiles fully completed, having BA on amex express list, and being fully familiar with the booking process.

    • Cwyfan says:

      Am I missing something here?

      As I read it, the reason for not now booking the return on line was simply that it is more expensive to do so. So it is purely a decision now of risk v value?

      Did I misunderstand?

      • Bonglim says:

        I am not sure there is a huge extra risk of doing it over the phone if you call the Japan ba office at the correct time.

        • BJ says:

          It is a risk, cannot say it is an extra risk. There is no hard evidence to suggest you are any more likely to get seats calling than booking online. This story has got to the point over the last year or so that many people believe they will get the seats if they call. This is clearly not the case, they are in competition both with other callers and people booking online.

      • BJ says:

        All about getting the seats, who cares about the price differences concerned if you need the seats to a specific destination at a specific time? If the dates and destinations were flexible then why bother with online bookings or calls at midnight?

  • Shoestring says:

    DIY option? If you were potentially to be stuck with the (much) higher fees by booking 2x single legs online, you could try cancelling everything and rebooking both legs as a 2-4-1 return when they went (immediately) back into reward seat inventory. You’d pay the cancellation fees but it would be a lot cheaper than some of the extra fees mentioned above.

    • Jonathan says:

      Only if they go back into reward inventory. BA is under no obligation to recycle the guaranteed 2J + 4Y seats. They often do as presumably revenue management have decided to it fits with their predicted loads but I wouldn’t rely on peak season Cape Town reappearing!

  • Matt says:

    I found out by accident that they were now allowing online bookings for the return flight back at the end of 2017. I was trying to book the return flights via the call centre for November 2018 but missed out. The next day some flights from an alternative airport became available, I booked them online just to make sure I would be able to get back, and then phoned up later and they said they could refund half the avios. This was before anything had been said here or on FT about his change – and the fees/charges weren’t recalculated and I kept two booking references. That was for South America, so it only cost me about £50 extra, I was happy just to have a route home!

    I’ve subsequently intentionally done the same for flights to Hong Kong, which saved us a fair bit. I don’t think this change has actually happened – I think its been the same since the start of booking the return online.

  • Anna says:

    Is BA trying to convince as many people as possible that the 2 4 1 just isn’t worth it any more by making it so expensive and difficult to redeem? I’ve seen quite a few people on here say they have no use for the voucher, although while good redemptions are available at peak periods I’ll carry on using it.

    • CV3V says:

      Its working, after years of use i do now question the value as i no longer have BA status and cannot reserve seats for free when in CW. The only real value of the voucher is if i can get seats in F. I need to do a ‘cheap’ Qatar flight to get my status back, then I will get a bit more value our of the voucher.

  • Simon says:

    Forgive me as its early In the morning!

    I need to book two returns to South America December 2020 using my 2-4-1 voucher. I ring the BA number in Japan at midnight T-355 and book the outbound posting for both tickets with Avios and pay the taxes.

    I wait until T-355 for the return and ring japan again to add the returns to the original flights, using the 2-4-1 this time and paying extra Avios due to peak date return flight.

    I assume I will have to pay some cash to cover taxes as well for the return flight.
    Apart from not knowing the BA Japan telephone number am I missing something?
    TIA

    • Peter K says:

      You use the 2-4-1 on the first booking. This is crutial.
      You book the second set without the 2-4-1 which you then ring up and they apply it to this because they can see you used it on the first booking.

  • Scallder says:

    Whilst having two single bookings might give flexibility to change one leg this surely means that if you wanted to cancel the bookings as well you’d end up paying £140 instead of £70 per 2 people to cancel the flights…

  • Geoff says:

    Surely this not new at all. This is the way it has been the last 2 years. Return legs booked online were refunded half the Avios but the bookings were never merged into a single booking number. I have done this 2 years ago to USA (bad for taxes) and last year for the far east which was actually better for taxes.

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