Companion Vouchers Decoded

Two seats in Club World to New York, on a British Airways American Express companion voucher, currently cost 176,000 Avios and £998 in cash.

The voucher does not touch a penny of that £998.

This is the single most misunderstood thing in British travel. The 2-4-1 is spoken about as though it makes a flight free, and what it actually does is halve one of the two currencies and leave the other one completely alone. Both passengers pay the taxes, fees and carrier surcharges in full. On the flagship redemption everybody dreams about, that is very nearly a thousand pounds.

Which is not a reason to be gloomy about the voucher. It is a reason to understand it, because once you can see which half the voucher discounts, you can go and spend it where the other half is small. That turns out to be worth several hundred pounds a trip, and it is the whole subject of this book.

This guide explains what a British Airways companion voucher really is, what it is worth in pounds, and how to spend it well. It is written for people who hold a British Airways American Express, or are wondering whether the £300 Premium Plus fee is worth paying.

What's inside

What the voucher actually is. The £15,000 spend threshold on both cards, what counts towards it, the difference between the free card's twelve months and economy only and the Premium Plus card's twenty-four months and any cabin, and the extra Club World availability that exists while the voucher is unused. Several of these are commonly reported wrongly.

The four costs nobody counts. The cash you pay twice is only the obvious one. There are three others, and together they are the difference between a voucher that earns its keep and one that quietly costs you money.

A map of where the cash hurts. Route by route and cabin by cabin, with real figures rather than "low" and "moderate". This is the chapter that tells you which trips a voucher is worth using on, and it is mostly a list of places people do not think of.

Five plays that beat the obvious one. The obvious play is Club World to New York. It is also close to the worst thing you can do with a voucher on current charges, and the book explains exactly why with the numbers side by side.

What happens when it goes wrong. Cancellations, schedule changes, delays, and whether you get the voucher back. This is short, dull and the chapter people write to me about, because nobody else covers it and everybody eventually needs it.

Availability and timing. The 355 day release, what midnight GMT actually means in practice, the minimum guaranteed seats by cabin, and how to plan a redemption backwards from the date it becomes bookable.

Six worked redemptions, full workings shown, so you can swap in your own dates and numbers and disagree with me properly.

The one thing it is worth buying the book for

Your British Airways companion voucher is valid on Iberia and Aer Lingus, not just British Airways.

Both have historically charged a fraction of what British Airways charges on transatlantic routes. Same cabin, same Avios, in the worked example in the book about £588 less cash for two people, in exchange for a short positioning flight and a slightly longer day.

It is in the terms. It is not a loophole. Hardly anybody does it, and after British Airways raised its cash charges on 27 May 2026 the gap got wider rather than narrower. There is a chapter on how to build the booking, what can go wrong with it, and when the faff is not worth it.

The mistake that costs the most

A reward booking earns no tier points at all. Not a reduced amount. None, for either passenger.

So a voucher spent on that Club World return to New York costs you roughly 3,300 tier points that the same two seats bought with cash would have earned. Under the current thresholds that is close to half of Silver.

That does not make the voucher a bad benefit. It makes it a choice, and it is a choice an enormous number of people make without knowing they are making it. There is a chapter on how the voucher and a status year pull against each other, and what to do in a year when you are chasing both.

What it isn't

The guide will not tell you the voucher is magic, and it will not pretend every redemption is a win. Two of the six worked examples end with the conclusion that the sensible move was to pay cash and keep the voucher for another year.

It is also not a guide to earning Avios. It assumes you have some, or will have.

Before you buy

There is a free audit on this store called The Free Points Audit. It is about tier points rather than vouchers, but it will show you how I write and whether you trust the arithmetic, and it costs nothing.

If your question is "should I be chasing status at all", the companion guide Tier Points, Decoded is the one you want. If your question is "I have a voucher and I do not want to waste it", this is the one.