Cheap flights from London to Boston

March is the cheapest month on this route, and the weeks either side of it stay well below the summer peak. Demand climbs from late spring through the school holidays and again around the winter holidays, when transatlantic seats sell out early. Midweek departures usually cost less than Friday and Sunday flights, and Tuesday or Wednesday returns tend to be quieter. If your dates are fixed, book further ahead for summer and December travel. For March and the calmer weeks you can often wait and watch the price calendar instead.

The airline mix here is mostly full-service rather than low-cost. British Airways and American Airlines are the names most people recognise on a London to Boston ticket, and they sit alongside carriers that connect through Europe: Icelandair, Swiss, Lufthansa, Austrian, Edelweiss Air and Helvetic Airways. Envoy Air and Republic Airways are regional partners, which usually means they fly one shorter leg of a longer itinerary rather than the whole trip. What is included depends on the ticket type more than the name on the tail: hand baggage only, a checked bag, seat selection and changes are all priced separately, so compare the total for your dates rather than the headline fare.

Logan International is the only airport serving Boston, and it sits close to the city on the harbour side, so the transfer into town is short by the standards of big American airports. Taxis and rideshares pick up outside the terminals, and public transport runs into downtown, though it takes longer with bags and at peak times. If you land in the evening, allow time for immigration before you plan the rest of the night. On the way back, remember that London has several airports, so leaving from a different one than you flew into is a real possibility if you booked two separate tickets.

Currency

USD ($)

Power sockets

Type A, B · 120 V

Language

Samoan, Hawaiian, Chamorro, Carolinian, Spanish

Emergency number

911

Driving side

right

Calling code

+1

Internet domain

.us

Population of Boston

676 k (2020)

Time zone

UTC-04 (America/New_York)

Country facts: Wikidata

• Check which London airport your fare leaves from, because Heathrow, Gatwick, London City, Luton and Stansted are not interchangeable on a tight connection.
• Confirm the baggage allowance on your specific fare, especially if the ticket is hand baggage only.
• If your itinerary includes a connection, make sure it sits on one ticket so a delay is the airline's problem and not yours.
• Check that your passport and any US entry authorisation are valid well before departure.
• Look at March first if your dates are flexible, and read the price calendar before you commit.