If you've been sitting on Aeroplan miles and have a London trip on your radar, this is a reasonable time to book. Economy seats from Chicago O'Hare to London Heathrow are available for 33,300 miles on April 27, 2026, with plenty of availability showing at this price point.

For context, economy awards on this route through Aeroplan typically run around 50,000 miles. At 33,300 miles, you're saving about 17,000 miles per ticket—a meaningful difference if you're booking for a family of four.

The taxes and fees come in at just $52, which is refreshingly low for a transatlantic flight. London awards often carry fuel surcharges that push fees into the hundreds, so this pricing is worth noting.

One practical tip: April is shoulder season in London, meaning fewer crowds and mild weather. It's a solid window for sightseeing before summer prices kick in across hotels and attractions.

How to book

Search and book directly through Aeroplan at aircanada.com.