How much does it cost to buy avios?

Related questions

1. Does British Airways offer bereavement fares?
2. Are British Airways tickets refundable?
3. Do British Airways allow name changes?
4. Can I change my British Airways flight?
5. How do I contact avios?
6. Can I get a refund if I cancel my flight?
7. Does British Airways have Boeing 737?
8. Does British Airways fly 737 MAX 8?
9. Is avios free to join?
10. How many Avios do I need to upgrade to business?

Tags

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2. #costs
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4. #transaction
5. #equivalent
6. #paying
7. #possible
8. #number
9. #avios
10. #buying
11. #maximum