Flights to London from US $ 1,023*

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United's most popular flights to London (LHR)

US $
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Mexico City (MEX)to

London (LHR)
03/03/2026 - 17/03/2026
from
US $ 1,148
Viewed: 10 hours ago
Roundtrip
Economy

Monterrey (MTY)to

London (LHR)
23/02/2026 - 02/03/2026
from
US $ 1,203
Viewed: 10 hours ago
Roundtrip
Economy

Guadalajara (GDL)to

London (LHR)
16/02/2026 - 23/02/2026
from
US $ 1,209
Viewed: 11 hours ago
Roundtrip
Economy

Puerto Vallarta (PVR)to

London (LHR)
08/01/2026 - 22/01/2026
from
US $ 1,225
Viewed: 2 hours ago
Roundtrip
Economy

Cancun (CUN)to

London (LHR)
11/12/2025 - 15/12/2025
from
US $ 1,023
Viewed: 5 hours ago
Roundtrip
Economy

*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 deals on flights to London (LHR)

US $

Mexico City (MEX)to

London (LHR)
19/03/2026 - 13/04/2026

Roundtrip

Business

from
US $ 4,519
Viewed: 1 day ago

Monterrey (MTY)to

London (LHR)
09/02/2026 - 23/02/2026

Roundtrip

Business

from
US $ 4,767
Viewed: 23 hours ago

Guadalajara (GDL)to

London (LHR)
29/03/2026 - 07/04/2026

Roundtrip

Business

from
US $ 4,540
Viewed: 8 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.

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Things to do after your flight to London (LHR)

The capital of the United Kingdom, London truly has something for everyone — from art, theatre and architecture to vast green spaces, traditional pubs and high tea.

London’s top attractions

  • See the official home and headquarters of the British monarchy at Buckingham Palace.
  • Admire the Palace of Westminster and the famous Big Ben clock tower.
  • Explore medieval history and see the crown jewels at the Tower of London.
  • Visit major landmarks like Westminster Abbey and St. Paul’s Cathedral.
  • Ride the London Eye for panoramic city views.
  • Take in world-class art at the British Museum, the National Gallery, Tate Britain and Tate Modern.
  • Watch a performance in the famous West End theatre district.
  • Stroll through the various Royal Parks, including Hyde Park and Regent’s Park.
  • Have fun with the family at London Dungeon, Madame Tussauds London, ZSL London Zoo and the Hamleys toy shop.
  • Shop at Fortnum and Mason or Harrods department stores.

Best time to travel to London

There is plenty to see and do in London year-round — keep in mind that the summer and winter holidays are the peak tourist seasons. The Lord Mayor’s Show, held in November, is one of the city’s biggest and longest-running events. The Notting Hill Carnival, a popular Caribbean celebration, is held every summer. Check Hyde Park’s calendar for live music events year-round.

Find your vacation package to London with United Packages.