Cheap flights from Baltimore to London from $291

The month of January is, on average, the cheapest month to fly to London Heathrow Airport from Baltimore, with most prices found around $644. If you’re not able to fly to London Heathrow Airport in January, then February is your next best option. Flight prices from Baltimore to London Heathrow Airport during February average around $685.

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $883. The most expensive day to fly to London Heathrow Airport is Friday, with ticket prices averaging around $983.

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from Baltimore to London Heathrow Airport in the afternoon for as low as $907. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $959.

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

You are more likely to see cheaper flights to London Heathrow Airport from Baltimore when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $841 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Baltimore for as low as $760 on momondo.

There are 4 cabin classes available to choose from on Baltimore to London Heathrow Airport 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 29% on your flight if you consider stops on a Baltimore to London Heathrow Airport flight.

As of August 2026, prices for Baltimore to London Heathrow Airport flights are approximately 6% more expensive when compared to flights at the same time last year.

Delta, KLM, and Virgin Atlantic are the most popular carriers operating from Baltimore/Washington to London Heathrow

British Airways, United Airlines and American Airlines are the top three most popular airlines that fly to London Heathrow Airport from Baltimore according to our data. British Airways is the first choice among our users, with 51% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 18 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

Reykjavik (KEF) was the most common stop: 90% of momondo users choosing 1-stop flights on this route connected there.

Flights via Atlanta (ATL) offer the lowest average round-trip price of $695.

Flights connecting via Atlanta (ATL) have the shortest average one-way travel time: 11h 07m.

Atlanta (ATL) has the shortest average layover time for this route: 1h 39m.

2 flights are operational daily from Baltimore to London Heathrow Airport as of August 2026. The most popular departure time for this route is 9:00PM, with 100% of flights per day taking off in the evening.

The number of flights available between Baltimore and London Heathrow Airport is 19 per week as of August 2026. The most frequent departure day is Mon, with 26% of weekly flights leaving on this day.