Cheap flights from Baltimore to London from $271

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 November is your next best option. Flight prices from Baltimore to London Heathrow Airport during November 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 $823. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $947.

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 $840. 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 $915.

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 $811 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 $726 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 41% on your flight if you consider stops on a Baltimore to London Heathrow Airport flight.

As of July 2026, prices for Baltimore to London Heathrow Airport flights are approximately 26% cheaper when compared to flights at the same time last year.

United Airlines and Delta 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 54% 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: 85% of momondo users choosing 1-stop flights on this route connected there.

Flights via Reykjavik (KEF) offer the lowest average round-trip price of $638.

Flights connecting via Charlotte (CLT) have the shortest average one-way travel time: 10h 27m.

Charlotte (CLT) has the shortest average layover time for this route: 1h 19m.

4 flights are operational daily from Baltimore to London Heathrow Airport as of July 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 32 per week as of July 2026. The most frequent departure day is Mon, with 16% of weekly flights leaving on this day.