Flight Deals from Baltimore to London Heathrow Airport from $368

Prices for flights from Baltimore to London peak in mid-summer around late June, while the lowest fares are typically found in late January.

When flying from Baltimore to London, you'll find significant price variations throughout the year. The most expensive time to travel is in mid-summer, particularly around late June, with prices reaching their peak at around $1195. Conversely, the lowest fares are typically found in late January, when prices can drop to about $677. You’ll notice a gradual increase in prices leading into the summer months, while early spring and late autumn, such as late March and early December, also present more affordable options. Overall, expect high prices during the summer and the winter holiday season, while the low season generally spans from January to mid-March and early December.

Book your flight from Baltimore to London 44 to 68 days in advance for the best prices.

For your journey from Baltimore to London, the best time to buy is between 44 and 68 days before departure, as prices are lowest around 54 days at about $824. Booking sooner may lead to prices reaching up to $946, which is unnecessarily high. It's advisable not to wait too long; although low prices extend until 26 days before departure, they become unstable close to the travel date, with prices rising significantly to around $1,044 at peak times. Booking within 26 days can be risky, as prices increase steadily, and seat availability decreases.