If you really want to treat yourself, you can get a one-way flight in Aer Lingus' business class on the same routes from just 50,000 Avios (off-peak) or 60,000 Avios (peak). In other words, your 100,000 bonus Avios would be enough for a return flight in business class to Ireland on off-peak dates.

A balance of 100,000 Avios is a significant amount that can take you across the globe if redeemed strategically. For short-haul travelers in Europe, 100,000 Avios could cover up to 10 round-trip economy flights between London and cities like Paris or Amsterdam. For long-haul adventures on British Airways or Iberia, 100,000 Avios is typically enough for a round-trip Economy ticket from London to New York, Dubai, or Cape Town during off-peak periods (usually 60,000–80,000 Avios). If you prefer luxury, you can often find a one-way Business Class (Club World) seat from Europe to the U.S. East Coast for around 80,000–90,000 Avios. Another high-value redemption is using 100,000 Avios on Qatar Airways; this can often cover a one-way flight in their world-famous Qsuite Business Class from London to Doha and onward to the Maldives or India. Always remember to account for taxes and carrier surcharges, which can be substantial ($200–$800) on long-haul British Airways flights, making Qatar Airways or Aer Lingus redemptions often more "tax-efficient."