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Find cheap one-way flights from London to Buenos Aires starting at US$417.

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • One way
  • Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to book flights from London to Buenos Aires?

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Cheapest airlines flights from London to Buenos Aires

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Wizz Air Malta
From US$403
Iberia
From US$413
Air Europa
From US$414
Vueling Airlines
From US$417
Ryanair
From US$423
Jet2.com
From US$427
British Airways
From US$429
Wizz Air UK
From US$454
easyJet
From US$467
Ryanair UK
From US$491
ANA airlines

Find more flights and airlines

Find cheap flights from London to Buenos Aires by different airports

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from London to Buenos Aires.

  • Cheapest
    easyJet
    LGW
    06:00
    37h 20m
    2 transfer
    AEP
    15:20
    London Gatwick Airport - Jorge Newbery Airport
    Tue, Apr 9easyJet
    US$386
  • Ryanair
    STN
    06:45
    25h 55m
    1 transfer
    EZE
    04:40
    London Stansted Airport - Ministro Pistarini International Airport
    Wed, Apr 17Ryanair
    US$423
  • Iberia
    LHR
    20:10
    39h 50m
    2 transfer
    EZE
    08:00
    London Heathrow Airport - Ministro Pistarini International Airport
    Tue, May 21Iberia
    US$428
  • Iberia
    LHR
    20:10
    39h 50m
    2 transfer
    EZE
    08:00
    London Heathrow Airport - Ministro Pistarini International Airport
    Tue, May 21Iberia
    US$428
    Find More Flights

Frequently Asked Questions

  • When are flight tickets from London (LON) to Buenos Aires (BUE) the cheapest?

    Airlines adjust prices for flights from London to Buenos Aires based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much do flights from London (LON) to Buenos Aires (BUE) cost?

    According to Trip.com's data, the lowest price is around $1,312.
  • How long does it take to fly from London (LON) to Buenos Aires (BUE) and what is the distance?

    It takes around 16 hours 25 minutes to fly from London (LON) to Buenos Aires (BUE).
  • What is the transportation method from the main airport to downtown in Buenos Aires?

    • The distance from Ministro Pistarini International Airport to downtown is about 27km. It takes about 40 minutes by taxi.
    • The distance from Jorge Newbery Airport to downtown is about 5km. It takes about 20 minutes by taxi.
  • What are the most popular airlines that fly from London (LON) to Buenos Aires (BUE)?

    Airlines with flights from London (LON) to Buenos Aires (BUE): British Airways and Iberia.

London to Buenos Aires Flight Information

Cheapest nonstop flight price

$416

Cheapest round-trip ticket price

$964

Off-season for travel

March

Peak season for travel

September