£358 Cheap United flights from Boston to London (BOS→LHR)

View £358 flight on Sun, 30 Aug 2026Opens in a new window

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 25% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

United flights from Boston to London (BOS→LHR)

Prices were available within the past 7 days and start at £358 for one-way flights and £426 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, 22 Apr - Thu, 23 Apr
BOS
Boston
LHR
London
£426 Return, found 2 days ago
£426
Return
found 2 days ago
Select United flight, departing Wed, 22 Apr from Boston to London, returning Thu, 23 Apr, priced at £426 found 2 days ago
United
Tue, 21 Apr - Thu, 23 Apr
BOS
Boston
LHR
London
£443 Return, found 2 days ago
£443
Return
found 2 days ago
Select United flight, departing Tue, 21 Apr from Boston to London, returning Thu, 23 Apr, priced at £443 found 2 days ago
United
Mon, 27 Apr - Tue, 28 Apr
BOS
Boston
LHR
London
£489 Return, found 2 days ago
£489
Return
found 2 days ago
Select United flight, departing Mon, 27 Apr from Boston to London, returning Tue, 28 Apr, priced at £489 found 2 days ago

Alternative airports near London

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Gatwick LGW. Cheapest option available. Average driving time to city centre is 52 minutes. Flights from £540
LGW
Gatwick
Cheapest
Average driving time to city centre52 min
Flights from £540
Select flight to London City LCY. Closest option available. Average driving time to city centre is 21 minutes. Flights from £588
LCY
London City
Closest
Average driving time to city centre21 min
Flights from £588

Find the cheapest month to fly from Boston (BOS) to London (LHR)

October is typically the cheapest month to fly

From £290 - £385 per traveller.

Travel information

Origin airport
Logan Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, ITA Airways, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic
Popular airline
Virgin Atlantic
Distance
5210 km
Average flight time
10 hours 46 mins
*Available to Expedia members.