$295 Find Cheap Flights from Boston to London Heathrow Airport - Compare and Save

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

• Earliest: departs at 7:10 am and lands at 1:53 pm
• Latest: departs at 11:11 pm and lands at 5:54 am.

The flight takes about 6h 43m.

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

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

Prices vary by airline.

A nonstop flight from Boston to London Heathrow Airport takes 6h 43m, covering 3,254 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 Boston to London Heathrow Airport range from $570 to $926, with an average of $754 over the past 12 months. Anything below $570 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 4% above the $754 route average. Book 26 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $486 round-trip via Washington, D.C. Dulles Intl (IAD), compared to $761 for nonstop.

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

• American Airlines: 93% on time
• Virgin Atlantic: 91% on time
• British Airways: 88% on time

Overall, flights on this route are punctual 89% of the time on average.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $37–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Boeing 777-200/200ER family is used most often on this route, operated mainly by British Airways and Iberia. Other aircraft seen on the route include Boeing 777 variants.

Evening is the busiest departure period on Boston to London Heathrow Airport flights, with 57% of flights leaving in that window. Night departures account for 28%, morning flights for 15%, and afternoon flights for 0%.

Four airlines offer in-flight Wi-Fi on Boston to London Heathrow Airport flights:

• Delta
• American Airlines
• Virgin Atlantic
• JetBlue

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 Boston to London Heathrow Airport are currently lower than usual. Average one-way flight prices are about $300, which is 23% below the typical average for this route.

London Heathrow Airport (LHR) hosts 5 major car rental companies, with daily rates starting from around $7 for economy cars. Top options include:

• GREEN MOTION
• DRIVALIA
• Europcar
• Alamo
• Hertz

Flights from Boston to London Heathrow Airport usually depart from Boston Logan Intl (BOS) and arrive at London Heathrow (LHR).

Morning flights have the fewest delays on this route, while night 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 Boston to London Heathrow Airport route, 11% of flights were delayed in the past 3 months, with delays averaging 2h 29m.

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

• Reykjavik Keflavik Intl (KEF) - 46% of one-stop connections
• Shannon (SNN) - 14% of one-stop connections
• Dublin (DUB) - 8% of one-stop connections
• Munich Franz Josef Strauss (MUC) - 5% of one-stop connections

Yes. Flexible dates can save you up to 4% on flights from Boston to London Heathrow Airport. Sunday is the cheapest departure day at $738 round-trip on average, while Thursday is the most expensive at $767, a difference of $29.

Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

5 airlines operate flights between Boston and London Heathrow Airport. 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 9h 42m, compared with 10h 22m via Shannon (SNN) and 10h 47m via Newark (EWR).

London Heathrow Airport is 5 hours ahead of Boston (British Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in London Heathrow Airport are Hyde Park and Buckingham Palace. These are among the most viewed places in London Heathrow Airport on KAYAK.

Among airlines operating Boston to London Heathrow Airport flights:

• British Airways: offers extra legroom; offers free seat selection
• Iberia: offers free seat selection
• Delta: offers extra legroom; offers free seat selection
• American Airlines: offers extra legroom; offers free seat selection
• Virgin Atlantic: offers extra legroom; 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
• Iberia: a cabin bag and a checked bag in Economy Class
• Delta: 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.

BOS is the main departure airport for travelers flying from Boston to London Heathrow Airport (LHR). Its location along major roads and access to public transportation make it easy to reach from central Boston.

London Heathrow Airport (LHR) is in western London and has good connections to nearby cities by train, bus and rental car. Cities accessible from the airport include Windsor, Slough, Reading and Oxford.

The London Underground or Tube, is one option for reaching downtown. LHR has Underground stations between Terminals 2 and 3, below Terminal 4 Arrivals and in the basement of the Terminal 5 building. The Heathrow Express runs between LHR and Paddington Station. Another rail option is the Elizabeth line. Buses and coaches operate to destinations in and around London. Taxis are available outside each terminal. Car rental services are located in the Arrivals Hall.

Nursing/nursery rooms are available in each terminal at BOS. These rooms include a changing counter, a fold-down seat and a sink or wipes.

Drivers should make sure children in the backseat are secured with the appropriate safety belts. Children can ride in the front seat when the required child restraint is used. An appropriate child car seat is normally required until age 12 or 135 cm, whichever comes first. If a rear-facing seat is placed in the front, the front airbag must be deactivated.

Boston Logan International Airport (BOS) offers barrier-free access, with elevators in all garages and terminals. Every terminal has two levels, along with ramps and elevators with braille-coded buttons for access to all levels. Service animals are permitted and animal relief areas are available in every terminal. BOS also provides Aira services for travelers with low vision.