Can You Combine Airline Miles? What Works in 2026

Which airline miles can be combined?

Avios is the clearest cross-program exception. British Airways says members can transfer Avios between British Airways Club and Iberia Club, AerClub, Loganair Loyalty, Vueling Club, Qatar Airways Privilege Club or Finnair Plus. The linked accounts must belong to the same person and meet each program's identity requirements.

British Airways describes transfers with Qatar and Finnair as immediate and repeatable as often as needed. Finnair states that transfers between linked Finnair Plus and British Airways Club accounts are free. That flexibility can turn several small Avios balances into one bookable award without paying a third-party transfer fee.

Can you combine miles from two unrelated airlines?

American AAdvantage miles cannot simply be merged with United MileagePlus miles, and Delta SkyMiles cannot be converted into Aeroplan points. Airline partnerships let one program book a partner's flight; they do not turn the underlying currencies into each other. The account that issues the award must contain the full mileage price unless that program offers an approved cash-and-miles option.

The better strategy is to search for the same operating flight through each partner program. One balance may already be large enough to issue the ticket, or transferable bank points may support one program but not another. Use the award calculator to estimate the target before moving anything.

Can hotel points help combine airline balances?

Hotel points can bridge a gap, but the conversion rate is often weak. Marriott publishes a 3:1 transfer ratio for most airline partners. Its United partnership adds 10,000 bonus miles for every 60,000 Marriott points transferred, producing 30,000 United miles from 60,000 points under the published offer. Other partner bonuses and exclusions differ.

A 3:1 ratio means 30,000 hotel points become only 10,000 airline miles before any applicable bonus. Use hotel transfers after confirming the award and comparing the cash cost of the missing miles. Never empty a valuable hotel balance simply to create a speculative airline balance.

What is the MileMarketplace balance-stack decision tree?

The balance stack starts with the award, not the accounts. First identify the issuing program and exact mileage price. Second use miles already in that program. Third move an eligible linked currency such as Avios. Fourth transfer flexible bank points. Fifth compare hotel conversion and purchasing only the remaining shortfall. Stop as soon as the ticket can be issued.

The decision tree avoids paying transfer fees or destroying value in the wrong currency. If 70,000 Avios are required and you hold 25,000 with British Airways plus 35,000 with Qatar, link and move the Avios first; only the final 10,000 is a true shortfall. Our top-up guide explains how to price that last gap.

What should you check before moving miles or points?

• The exact award is visible in the program that will issue the ticket.
• Account names, birth dates and contact details match where linking requires them.
• The transfer direction is correct and the transaction is not irreversible by mistake.
• The transfer ratio and any fee are cheaper than buying the remaining shortfall.
• The receiving balance will arrive before the award space is likely to disappear.
• The program's expiration rules will not strand the combined balance later.

Bottom line

Most airline currencies cannot be merged, but Avios links, household pools and flexible-point transfers can assemble one useful balance. Confirm the award first, use free same-currency transfers next and pay for only the final gap. Start with the MileMarketplace award calculator to identify the target balance before consolidating anything.