$283 Cheap Swiss International Air Lines flights Boston (BOS) to London (LHR)

View $283 flight on Sat, May 2, 2026Opens in a new window

$283 Cheap Swiss International Air Lines flights Boston (BOS) to London (LHR)

Prices were available within the past 7 days and start at $283 for one-way flights and $639 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Swiss International Air Lines
Sat, May 2 - Wed, May 13
BOS
Boston
LHR
London
$639 Roundtrip, found 18 hours ago
$639
Roundtrip
found 18 hours ago
Select Swiss International Air Lines flight, departing Sat, May 2 from Boston to London, returning Wed, May 13, priced at $639 found 18 hours ago
Flights from Boston (BOS) to London (LHR)
Origin airport
Logan Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, United, Virgin Atlantic
Popular airline
British Airways
Distance
5210 km
Average flight time
11 hours 39 mins