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Do Avios expire?
Yes. Avios lapse after 36 months with no activity on your British Airways Club account, not on a fixed calendar date. Any single earn or spend, however small, resets the clock on your entire balance. Other Avios programs, including Iberia, Aer Lingus and Qatar, set their own inactivity windows.
GuideDo Delta miles expire?
No. Delta SkyMiles do not expire and there is no inactivity clock — Delta's own program rules state miles never expire. The catch is value rather than time: SkyMiles are priced dynamically against cash fares, so a balance held for years quietly buys less as fares and award prices rise.
GuideDo United miles expire?
No. United MileagePlus miles do not expire; United dropped its 18-month inactivity rule in August 2019 and has not reinstated it. A balance survives an idle account indefinitely. What it does not survive is devaluation — United prices awards dynamically, so miles held for years tend to buy less.
GuideAmex to Avios
American Express Membership Rewards points transfer to Avios at 1:1, so 10,000 points become 10,000 Avios. Transfers are usually instant once your Avios account is linked, though Amex asks you to allow up to 72 hours. Periodic transfer bonuses of roughly 15 to 30 per cent are the easiest way to boost the rate.
GuideHow many Avios for a flight?
It depends on distance and cabin, not a fixed price. British Airways Club prices rewards in distance bands, so since the December 2025 repricing a short-haul economy reward starts at 10,000 Avios one-way, and business on the same routes runs roughly 16,500 to 26,750. Cash taxes and carrier charges are always extra.
GuideHow to earn Avios
You earn Avios by flying and by spending. UK credit cards earn 1 to 1.5 Avios per £1 and Nectar converts at 400 to 250; in the US, Chase, American Express, Capital One, Bilt and Wells Fargo points transfer to Avios at 1:1. Hotels, car hire and other partners pay Avios too.
GuideBilt transfer partners
Bilt Rewards has the widest transfer list of any US card currency: nineteen airlines and seven hotels, almost all at 1:1. It is the only program reaching American, Alaska, Southwest and United alongside all four major hotels, Hilton, IHG, Marriott and Hyatt. Only Accor (3:2) and Preferred Hotels (1:2) differ.
GuideHow to earn Delta miles
Delta SkyMiles members earn 5 miles per $1 on Delta fares, rising to 7, 8, 9 and 11 with Silver, Gold, Platinum and Diamond Medallion status; Basic Economy earns none. Partner-airline flights earn by distance and cabin, American Express points transfer in at 1:1 and Marriott points at 3:1, and dining, Uber and shopping add more.
GuideHow to earn United miles
Since April 2026, United pays by fare, status and whether you hold a United credit card: general members earn 3 miles per $1 without one and 6 with one, rising to 9 and 12 for Premier 1K. Basic Economy earns less, and nothing for general members without a card. Chase points transfer in at 1:1.
GuideHow to book United awards
United has no award chart: miles prices move with demand and the cash fare, and the cheapest are limited saver seats. Since April 2026 primary United cardmembers pay at least 10% fewer miles on United flights. Awards can be changed or canceled free before departure, and Star Alliance partners can be booked with the same miles.
ComparisonAvios vs Amex Membership Rewards
Hold Membership Rewards until you have an Avios booking in mind. Amex points transfer to Avios at 1:1 and never expire while you keep an MR-earning Card, so they are the flexible form of the same value. Avios lapse after 36 months of inactivity and can only be spent in Avios programs.
ComparisonAvios vs AAdvantage miles
Avios and AAdvantage miles land close in value — about 1p per Avios against roughly 1.5 cents per mile — so the deciding factor is usually the cash charges, because a British Airways Avios reward adds carrier charges on top of tax. Avios expire after 36 months of inactivity; AAdvantage miles after 24.
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