New York City (LGA) to London Heathrow (LHR) cheap flight deal from $4373 USD in first class

BABritish Airways

Round Trip•First Class

LGA

LaGuardia Airport

New York City, United States

LHR

London Heathrow Airport

London Heathrow, United Kingdom

$5,222 USD

-16%$4,373 USD

Verified 1 day ago

March 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

23 24$4,722 25 26$4,874 27$4,874 28$4,973 1$4,973 2 3$4,723 4 5 6 7 8$4,874 9 10$4,626 11 12$5,373 13 14 15$4,723 16 17$4,473 18$4,374 19$4,624 20$4,624 21$4,824 22$5,074 23$5,074 24 25 26 27 28 29 30 31 1 2 3 4 5

Fair Availability

23% of dates checked are available within 10% of the lowest price

Wednesday, March 18th, 2026

6 round-trip options

Returning

Mon, Mar 23, 2026•5 Day Trip

$4,624 USD

Google Flights

Returning

Tue, Mar 24, 2026•6 Day Trip

$4,374 USD

Google Flights

Returning

Wed, Mar 25, 2026•7 Day Trip

$4,374 USD

Google Flights

Returning

Thu, Mar 26, 2026•8 Day Trip

$4,374 USD

Google Flights

Returning

Fri, Mar 27, 2026•9 Day Trip

$4,723 USD

Google Flights

Returning

Sat, Mar 28, 2026•10 Day Trip

$4,723 USD

Google Flights