Cheap flights from Baltimore to London from £145

The cheapest month to fly to London from Baltimore is in January. Flight prices, which tend to average around £475, are often lower during this time because this is during the off-season. The month of September is another great option to travel to London, with average flight prices from Baltimore averaging around £491.

Our data shows that Sunday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £531. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Baltimore to London for around £608.

The cheapest time of day to fly to London is in the afternoon when flights can be purchased for as low as £549. Flights in the evening are often more expensive, with an average ticket price of £577.

Fly from Baltimore/Washington to London Heathrow for the best Baltimore/Washington - London flight prices

You are more likely to see cheaper flights to London from Baltimore when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £572 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Baltimore for as low as £540 on momondo.

There are 3 cabin classes available to choose from on Baltimore/Washington to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 42% on your flight if you consider stops on a Baltimore to London flight.

As of March 2026, prices for Baltimore to London flights are approximately 5% cheaper when compared to flights at the same time last year.

Icelandair and United Airlines are the most popular carriers operating from Baltimore/Washington to London

British Airways, Virgin Atlantic and United Airlines are the top three most popular airlines that fly to London from Baltimore according to our data. British Airways is the first choice among our users, with 49% of people opting to fly with this airline when travelling to London. Keep in mind that there are 8 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

Reykjavik (KEF) was the most common stop: 57% of momondo users choosing one-stop flights on this route connected there.

Flights via Atlanta (ATL) offer the lowest average return price of £407.

Flights connecting via Reykjavik (KEF) have the shortest average one-way travel time: 10h 15m.

Reykjavik (KEF) has the shortest average stopover time for this route: 1h 25m.