Flights from London to the United States from £ 431*
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1 Passenger, Economy
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today
today
Find United's best fares from London to the United States
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flight_land
£
London (LHR)to
San Francisco (SFO)07/04/2026 - 15/04/2026from£ 473Viewed: 1 day agoRoundtripEconomy
London (LHR)to
Newark/New York (EWR)30/04/2026 - 05/05/2026from£ 431Viewed: 5 hours agoRoundtripEconomy
London (LHR)to
Chicago (ORD)23/09/2026 - 05/10/2026from£ 571Viewed: 8 hours agoRoundtripEconomy
London (LHR)to
Los Angeles (LAX)20/05/2026 - 26/05/2026from£ 473Viewed: 1 day agoRoundtripEconomy
London (LHR)to
Denver (DEN)22/04/2026 - 06/05/2026from£ 629Viewed: 17 hours agoRoundtripEconomy
London (LHR)to
Washington, D.C. (IAD)02/05/2026 - 10/05/2026from£ 450Viewed: 1 day agoRoundtripEconomy
London (LHR)to
Houston (IAH)22/04/2026 - 06/05/2026from£ 866Viewed: 17 hours agoRoundtripEconomy
London (LHR)to
Boston (BOS)29/04/2026 - 06/05/2026from£ 497Viewed: 17 hours agoRoundtripEconomy
London (LHR)to
Orlando (MCO)30/04/2026 - 14/05/2026from£ 550Viewed: 17 hours agoRoundtripEconomy
London (LHR)to
Seattle (SEA)29/04/2026 - 06/05/2026from£ 605Viewed: 17 hours agoRoundtripEconomy
London (LHR)to
Honolulu (HNL)05/05/2026 - 19/05/2026from£ 1,162Viewed: 17 hours agoRoundtripEconomy
London (LHR)to
Cleveland (CLE)12/05/2026 - 19/05/2026from£ 809Viewed: 17 hours agoRoundtripEconomy
London (LHR)to
Ontario (ONT)21/04/2026 - 05/05/2026from£ 556Viewed: 18 hours agoRoundtripEconomy
London (LHR)to
Portland, OR (PDX)04/05/2026 - 11/05/2026from£ 698Viewed: 18 hours agoRoundtripEconomy
London (LHR)to
San Diego (SAN)29/04/2026 - 03/05/2026from£ 598Viewed: 18 hours agoRoundtripEconomy
London (LHR)to
Miami (MIA)06/05/2026 - 13/05/2026from£ 547Viewed: 18 hours agoRoundtripEconomy
London (LHR)to
Las Vegas (LAS)06/05/2026 - 10/05/2026from£ 709Viewed: 18 hours agoRoundtripEconomy
London (LHR)to
Salt Lake City (SLC)28/04/2026 - 05/05/2026from£ 997Viewed: 18 hours agoRoundtripEconomy
London (LHR)to
Burbank (BUR)15/04/2026 - 22/04/2026from£ 555Viewed: 11 hours agoRoundtripEconomy
London (LHR)to
Dallas (DFW)05/05/2026 - 12/05/2026from£ 875Viewed: 18 hours agoRoundtripEconomy
*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.
Business class flights from London to the United States
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£
London (LHR)to
San Francisco (SFO)
14/12/2026 - 31/12/2026
Roundtrip
Business
from
£ 3,121
Viewed: 8 hours ago
London (LHR)to
Newark/New York (EWR)
08/01/2027 - 18/01/2027
Roundtrip
Business
from
£ 2,548
Viewed: 1 day ago
London (LHR)to
Los Angeles (LAX)
31/07/2026 - 15/08/2026
Roundtrip
Business
from
£ 3,955
Viewed: 9 hours ago
London (LHR)to
Chicago (ORD)
09/02/2027 - 13/02/2027
Roundtrip
Business
from
£ 3,028
Viewed: 4 hours ago
London (LHR)to
Denver (DEN)
17/08/2026 - 31/08/2026
Roundtrip
Business
from
£ 3,751
Viewed: 9 hours ago
London (LHR)to
Washington, D.C. (IAD)
19/10/2026 - 22/10/2026
Roundtrip
Business
from
£ 2,675
Viewed: 19 hours ago
London (LHR)to
Houston (IAH)
01/08/2026 - 15/08/2026
Roundtrip
Business
from
£ 3,584
Viewed: 1 day ago
London (LHR)to
Orlando (MCO)
22/10/2026 - 05/11/2026
Roundtrip
Business
from
£ 3,054
Viewed: 6 hours ago
*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.