Cheap flights from Baltimore Washington International to London

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Flight deals from Baltimore Washington International to London

Looking for a cheap last-minute deal or the best return flight from Baltimore Washington International to London? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Baltimore Washington International to London

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Baltimore Washington International to London flights are currently cheapest in October.

Direct flights from Baltimore Washington International to London

Alternative Baltimore Washington International to London routes

Looking for the cheapest, fastest or easiest route from Baltimore Washington International to London? You could fly into the following airports instead.

Washington D.C. to London: Flight information

The things to know before you go.
Cheapest flight foundP21,240
Cheapest month to flyOctober
Average flight time7 hrs, 12 mins
Most popular airlineAer Lingus
Average flights per week37

Finding cheap flights from Baltimore Washington International to London: Frequently asked questions

There are 6 airports in London: London City, London Heathrow, London Gatwick, London Luton, London Stansted, and London Southend.
The best price we found for a return flight from Baltimore Washington International to London is P21,240. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
7 hours and 12 minutes is the average flight time from Baltimore Washington International to London.
Aer Lingus, American Airlines and Finnair fly direct from Baltimore Washington International to London.
As of May 2025, there are 37 flights per week flying from Baltimore Washington International to London.
The cheapest month to fly from Baltimore Washington International to London is usually May 2025.
If you're flying from Baltimore Washington International Airport, the cheapest airport near London is London Luton – which is 44.6 km away from the centre of London. We've found flights into this airport from P21,240.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Baltimore Washington International Airport to London on Saturday, 25 October 2025.
Yes – the average flight time is 7 hours and 12 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.
In May, the average temperature is usually around 12°C. August is typically the warmest month in London, when it usually averages around 22°C. You can expect the least rain in March. The coldest month is January, with temperatures averaging 1°C. The rainiest month is October.
Currently, Fly Play and Finnair offer the cheapest flight tickets to London.

Travelling from Baltimore/Wash International Thurgood Marshall Airport (BWI) to London: what you need to know

  • Hop on a direct flight from Baltimore/Wash International Thurgood Marshall Airport to London and you'll be travelling for around 8 hours 10 minutes.

  • Baltimore/Wash International Thurgood Marshall Airport is located in Washington DC. Following the UTC+0 timezone, London is four hours ahead of Washington DC.

  • With seven weekly departures between the two airports, Baltimore/Wash International Thurgood Marshall Airport (BWI) to London Heathrow Airport (LHR) is the most popular route. Hop on British Airways's 20:30 flight to get your journey from BWI to LHR underway.

  • To avoid rushing for your BWI to London flight, leave plenty of time to check in and find your gate. Arriving two hours ahead of international departures and an hour before domestic flights is the general travel rule.

  • If you're travelling during a major holiday or another peak period, give yourself more time. A good general rule is two hours ahead of domestic flights and up to four hours before international departures. Queues at check-in and security will be longer.

  • Start your journey at BWI and fly straight to London Heathrow Airport (LHR). That's where you can expect to land when searching for Baltimore/Wash International Thurgood Marshall Airport to London tickets.

  • Take to the skies with British Airways. This popular airline offers direct flights from Baltimore/Wash International Thurgood Marshall Airport to London.

  • A stopover is the ideal opportunity to take a break from travelling and maybe even explore a different city. When searching for plane tickets from BWI to London, uncheck the 'Direct flights only' box to see where you can visit along the way. Here are some options to consider:

    • John F. Kennedy International Airport (JFK)

    • Logan International Airport (BOS)

    • Orlando International Airport (MCO)

  • Located around 40 kilometres from central Washington DC, BWI can be reached in about 50 minutes by car (depending on traffic). The journey on public transport will take roughly 1 hour 30 minutes.

  • Booked an early flight from Baltimore/Wash International Thurgood Marshall Airport to London? Avoid the hassle of rushing to the terminal (and get some extra shut-eye) by choosing one of these stays close to BWI:

  • When it comes to the on-time performance of Baltimore/Wash International Thurgood Marshall Airport, 77.13% of flights arrive within the scheduled time frame.

How to find the cheapest flights from Baltimore/Wash International Thurgood Marshall Airport (BWI) to London

  • P10,715 is the lowest price we've seen for a one-way Baltimore/Wash International Thurgood Marshall Airport to London flight. A return ticket right now is P21,240. Depending on the availability when you book, these fares may change.

  • To snag cheap flights from BWI to London, book your trip five months before your planned departure.

  • September is the best month for nabbing an incredible deal on Baltimore/Wash International Thurgood Marshall Airport to London tickets. If you're looking to travel at a different time of year, the 'Whole month' tool will give you the lowest prices across every month.

  • Picking up a cheap flight from BWI to London couldn't be easier with Price Alerts. All you need to do is create one of these automatic notifications and we'll let you know as soon as a cheaper option becomes available.

  • Tailor your trip with filters. Choose your preferred arrival and departure times, total journey duration and airlines. You can also sort results by 'Best,' 'Cheapest' or 'Fastest' flights from Baltimore/Wash International Thurgood Marshall Airport to London.

Airports in London

London Heathrow Airport (LHR)

  • London Heathrow Airport (LHR) is around 31 kilometres from central London. If you're catching a cab or a ride-share, the drive takes about 55 minutes.

  • Travelling to the centre by public transport will take you around 1 hour.

  • If you're arriving on a late flight from Baltimore/Wash International Thurgood Marshall Airport to London, nothing beats the convenience of staying close to the terminal. Pick up your bags from the carousel and then be showered and sleeping not long after at one of these accommodation options near LHR:

  • Go wherever you want, whenever you want with a London Heathrow Airport rental car. Pick up your wheels from Surprice, U-Save or Green Motion and see more of London and beyond.

  • Lock in the best rate by reserving your ride from London Heathrow Airport around one week before your flight from BWI to London.

London Gatwick Airport (LGW)

  • Once your flight from Baltimore/Wash International Thurgood Marshall Airport to London has hit the runway, you can get to the city centre in about 1 hour 20 minutes by car. Central London is roughly 80 kilometres from London Gatwick Airport (LGW).

  • You can expect the trip to take about 30 minutes on public transport.

  • There are some great places to call home for the night near LGW. Kick back and get cosy after your BWI to London flight at one of these well-located options:

  • The fastest way to reach your destination is with a London Gatwick Airport rental car. Grab your wheels from Green Motion, U-Save or Drivalia and hit the road in a heartbeat.

  • Avoid paying more than you need to. Reserving your ride three weeks ahead of your arrival at LGW can help you lock in a better rate.

Stansted Airport (STN)

  • Step off your flight from Baltimore/Wash International Thurgood Marshall Airport to London and head for your hotel or jump right into exploring. Central London is around 64 kilometres from Stansted Airport (STN) and usually takes 1 hour to reach by car.

  • If you travel by public transport, the journey time is about 1 hour 25 minutes.

  • If you don't want to travel into the centre, choose a hotel near STN. Make yourself comfy at one of these stays after your BWI to London flight:

  • Whether you want a mini for a solo trip or a spacious SUV to fit everyone and their gear, you'll find the right Stansted Airport rental car for your needs. Check out the range of wheels available here from companies such as Green Motion, Drivalia and Europcar.

  • About four weeks ahead of your flight from Baltimore/Wash International Thurgood Marshall Airport to London is the ideal time to book your ride from STN. You're more likely to find a cheaper rate or even snap up an early bird discount.

Best time to go to London

  • Carefully consider your trip dates before booking your flight from Baltimore/Wash International Thurgood Marshall Airport to London. The city buzzes in peak season, but rates are typically higher and top attractions can be busy. Plan your trip to London in low season for a quieter vibe.

  • Before booking a Baltimore/Wash International Thurgood Marshall Airport to London plane ticket, think about what kind of weather works for you. July is the warmest month in London, with temperatures ranging from 11ºC (52ºF) to 26ºC (79ºF).

  • If you like travelling in cooler conditions, search for a cheap ticket from BWI to London in January when temperatures average between 0ºC (32ºF) and 9ºC (48ºF).

More about London

  • When it comes to searching for somewhere to rest your head, you'll find the most popular stays in London right here. Explore these options once you've locked in your flight from Baltimore/Wash International Thurgood Marshall Airport to London:

  • There are so many things to do and see in this city it can be hard to know where to begin. The British Museum, Big Ben and Buckingham Palace are highlights which should feature on any good London itinerary.

Explore more of United Kingdom

  • Birmingham is just one of the many cities in United Kingdom waiting to be discovered once you've taken in the sights of London. Around 161 kilometres away to the north-west, popular attractions include Cadbury World, The Library of Birmingham and National Sea Life Centre.

  • Around 177 kilometres west of London, Bristol is another favourite stop in United Kingdom. Experience the best of this destination with a visit to Clifton Suspension Bridge, Cabot Tower and Brandon Hill Nature Park.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.