Boston (BOS) → London (LHR)

5,240 km
7h 3m flight
From $640
London destination photo

About Boston to London Flights

Discover the best flights from Boston to London, covering 5,240 km in approximately 7h 3m. Boston (BOS) to London (LHR) is one of the major long-haul routes connecting United States and United Kingdom. With 7 major airlines operating this route including direct flights, travelers have plenty of options to choose from. Whether you're traveling for business or leisure, our comprehensive guide helps you find the best deals, understand seasonal price variations, and choose the right airline for your journey from Boston to London.

12-Month Price History

Flight prices from Boston to London vary significantly throughout the year. February typically offers the best deals with average prices around $992, while August sees the highest prices, averaging $1604. Savvy travelers can save up to 38% by choosing their travel dates wisely.

Best Time to Fly

Cheapest Month

February

Save up to 40% on average

Most Expensive

August

Peak season pricing

Book in Advance

122 days

For best prices

Booking Tips

For the best prices on Boston to London flights, we recommend booking 132 days in advance. International flights typically see price increases as the departure date approaches, so early booking is advisable. Tuesday and Wednesday departures often offer the lowest fares, while Friday and Sunday flights tend to be more expensive due to business and leisure travel demand. Consider flying early morning or late evening for additional savings, as these off-peak times usually have lower demand.

Airlines Serving This Route

JetBlue Airways

B6

Economy

$1290

Business

$3840

First

-

United Airlines

UA

Economy

$1560

Business

$5560

First

$8810

Air France

AF

Economy

$1660

Business

$6360

First

$8470

Delta Air Lines

DL

Economy

$1680

Business

$5960

First

$10070

American Airlines

AA

Economy

$1770

Business

$5570

First

$8270

Lufthansa

LH

Economy

$1930

Business

$5950

First

$10740

British Airways

BA

Economy

$1950

Business

$6980

First

$10990

Prices shown are estimates based on historical data. Actual prices may vary based on dates, availability, and current promotions.

Alternative Flight Options

London destination photo

HartfordLondon

Bradley International (BDL) to Heathrow (LHR)

Distance: 5,379 km

Average price: $1179

View this route →
London destination photo

PortlandLondon

Portland International Jetport (PWM) to Heathrow (LHR)

Distance: 5,110 km

Average price: $1126

View this route →
London destination photo

BostonLondon

Logan International (BOS) to Gatwick (LGW)

Distance: 5,269 km

Average price: $1157

View this route →
Birmingham destination photo

BostonBirmingham

Logan International (BOS) to Birmingham (BHX)

Distance: 5,123 km

Average price: $1129

View this route →

Don't Forget Travel Insurance!

Found your flight? Protect your trip with SafetyWing's comprehensive travel insurance. Perfect for trips to London, United Kingdom.

  • Medical coverage up to $250,000
  • Trip interruption & delays covered
  • Lost luggage protection included

From just $45/month • Works in 180+ countries • COVID-19 coverage included

Get Travel Insurance Quote

Trusted by 100,000+ travelers

Frequently Asked Questions

How long is the flight from Boston to London?

The flight time from Boston (BOS) to London (LHR) is approximately 7 hours and 3 minutes. This duration is for direct flights and may vary depending on aircraft type, weather conditions, and air traffic.

What is the distance between Boston and London?

The aerial distance between Boston and London is 5,240 kilometers (3,256 miles). This is the straight-line distance, which is used to calculate flight times.

Which airlines fly from Boston to London?

Several airlines operate flights between Boston and London, including Delta Air Lines, JetBlue Airways, British Airways and 4 more airlines. Direct flights are available on this route.

What is the cheapest month to fly from Boston to London?

Based on historical data, February typically offers the lowest airfares for flights from Boston to London. However, prices can vary based on holidays, events, and airline promotions. We recommend checking our price calendar for the most up-to-date information.

How far in advance should I book my flight to London?

For the best prices on Boston to London flights, we recommend booking 75 days in advance. International flights generally require earlier booking than domestic routes.

Do I need a visa to travel from Boston to London?

Visa requirements depend on your nationality and the purpose of your visit. Citizens of United States traveling to United Kingdom should check the latest visa requirements. Visit our partner site visarequirements.io for detailed visa information.

What is the time difference between Boston and London?

Boston operates on America/New_York time zone, while London is in the Europe/London time zone. For current time differences and to plan your schedule, visit our partner site timezig.com for accurate timezone conversions.