$475 Find Cheap Flights from London to Boston - Compare and Save

These are the earliest and latest flight times available from London to Boston:

• Earliest: departs at 9:20 am and lands at 5:06 pm
• Latest: departs at 7:10 pm and lands at 2:56 am.

The flight takes about 7h 46m.

Four cabin classes are available on flights from London to Boston:

• Economy Class
• Premium Economy Class
• Business Class
• First Class

Prices vary by airline.

A nonstop flight from London to Boston takes 7h 46m, covering 3,267 miles.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Round-trip flights from London to Boston range from $622 to $847, with an average of $717 over the past 12 months. Anything below $622 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 18% above the $717 route average. Book 24 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $526 round-trip via Barcelona-El Prat (BCN), compared to $727 for nonstop.

Virgin Atlantic is slightly above the route average for timely arrivals, while Delta has a lower on-time arrival rate. On-time arrival rates on London to Boston flights are:

• Virgin Atlantic: 95% on time
• Delta: 94% on time
• American Airlines: 92% on time

Overall, flights on this route are punctual 90% of the time on average.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $51–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

Morning is the busiest departure period on London to Boston flights, with 51% of flights leaving in that window. Evening departures account for 33%, afternoon flights for 16%, and night flights for 0%.

Two airlines offer in-flight Wi-Fi on London to Boston flights:

• Delta
• American Airlines

Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

One-way fares from London to Boston are currently lower than usual. Average one-way flight prices are about $491, which is 19% below the typical average for this route.

Boston Logan Intl Airport (BOS) hosts 5 major car rental companies, with daily rates starting from around $23 for economy cars. Top options include:

• Dollar
• Hertz
• Budget
• Thrifty
• Sixt

Flights from London to Boston may depart from several airports in London area, including London City (LCY), London Gatwick (LGW), London Heathrow (LHR), London Luton (LTN), London Southend (SEN) and London Stansted (STN). Flights usually arrive at Boston Logan Intl (BOS).

Morning flights have the fewest delays on this route, while afternoon departures tend to have the most.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the London to Boston route, 10% of flights were delayed in the past 3 months, with delays averaging 2h 45m.

One-stop flights from London to Boston most commonly connect through:

• Reykjavik Keflavik Intl (KEF) - 43% of one-stop connections
• Dublin (DUB) - 12% of one-stop connections
• Shannon (SNN) - 9% of one-stop connections
• Lisbon Humberto Delgado (LIS) - 5% of one-stop connections

Yes. Flexible dates can save you up to 7% on flights from London to Boston. Wednesday is the cheapest departure day at $691 round-trip on average, while Sunday is the most expensive at $743, a difference of $52.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

5 airlines operate flights between London and Boston. The airlines offering nonstop flights on this route include:

• British Airways
• JetBlue
• Virgin Atlantic
• American Airlines
• Delta

Flying via Dublin (DUB) gives the shortest average 1-stop total travel time at 10h 13m, compared with 10h 16m via Montreal Pierre Elliott Trudeau Intl (YUL) and 10h 26m via Shannon (SNN).

Boston is 4 hours behind London (Eastern Time vs British Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in Boston are TD Garden, Fenway Park and Boston Common. These are among the most viewed places in Boston on KAYAK.

Among airlines operating London to Boston flights:

• British Airways: offers free seat selection
• Virgin Atlantic: offers extra legroom; offers free seat selection
• JetBlue: offers extra legroom; offers free seat selection
• Iberia: offers free seat selection
• Finnair: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• British Airways: a cabin bag and a checked bag in Economy Class
• Virgin Atlantic: a cabin bag and a checked bag in Economy Class
• JetBlue: a cabin bag and a checked bag in Economy Class

Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

Yes, there are many airlines which operate non-stop flights from London to Boston, among them are British Airways, Iberia, American Airlines and KLM Royal Dutch Airlines with departures from London Heathrow Airport. If you are wondering about low-cost airlines, check flights with Norwegian which also has non-stop flights from London to Boston in their offering.

Yes, London Heathrow Airport has facilities for storing luggage open from 5am to 11pm and they are located in all terminals. You can leave your luggage at Excess Baggage for a few hours or days, the maximum duration is 90 days. It is possible to book this service in advance via the website.

Yes, you can choose between two hotels that are connected to Boston Logan Airport – Hilton Boston Logan Airport and Hyatt Harborside at Boston’s Logan Airport. If your terminal is too far to reach on foot then you can use free airport shuttles provided by the hotels. You can also find some other options near the airport, such as YOTEL Boston or Courtyard by Marriott Boston Logan Airport.

Boston Logan Airport provides Nursing Suites for breastfeeding mothers so they can feed and change their baby in private and away from the noise. There are also rocking chairs in the terminals which help parents in keeping the baby calm. Older kids can play and climb at Kidports that are located in every terminal.