The cheapest order to fly Athens, London and Madrid from Buenos Aires
There are 6 ways to fly these cities. They do not cost the same. The cheapest works out at about $1,167 a person and the most expensive at $1,380, a difference of $213 for visiting exactly the same places.
Fly them in this order
Buenos Aires → Athens → London → Madrid → Buenos Aires
About $1,167 per person in flights, based on fares recently seen on these routes.
Every order, priced
- Buenos Aires → Athens → London → Madrid → Buenos Aires$1,167cheapest order
- Buenos Aires → London → Athens → Madrid → Buenos Aires$1,185$18 more per person
- Buenos Aires → Madrid → Athens → London → Buenos Aires$1,274$107 more per person
- Buenos Aires → Athens → Madrid → London → Buenos Aires$1,285$118 more per person
- Buenos Aires → Madrid → London → Athens → Buenos Aires$1,349$182 more per person
- Buenos Aires → London → Madrid → Athens → Buenos Aires$1,380$213 more per person
Why end in Madrid
- Buenos Aires to Athens$580
- Athens to London$46
- London to Madrid$28
- Madrid to Buenos Aires$513
- Out of Buenos Aires, the cheapest first flight goes to Madrid at about $546, but the cheapest order starts in Athens at $580 because the rest of the route is cheaper that way.
- Going home, Madrid is the cheapest city to leave from at about $513, against $728 from Athens.
- The dearest order pays $728 for Athens to Buenos Aires, a flight the cheapest order never takes.
- Buenos Aires to Athens is 50% of what the cheapest order spends on flights, so it is the leg to watch.
Between the cities
- Athens to London: about 2,390 km (1480 miles) as the crow flies. No train or bus we would suggest instead of flying.
- London to Madrid: about 1,260 km (780 miles) as the crow flies. No train or bus we would suggest instead of flying.
Entry rules for the Schengen area and the United Kingdom depend on your passport. Check them with the IATA Travel Centre before you book.
How much the order matters here
Getting the order right is worth $213 a person on this trip, 18% of what the cheapest way round costs. Of the 107 trips we price in full, that is number 70 for how much the order matters, about the middle: worth getting right, and worth checking against your own dates.
What these numbers are
Cached one-way fares, 12 of 12 legs priced from real observations, put together on November 10, 2026, from fares departing November 10, 2026 onwards. Right for comparing one order with another, not a quote for your dates.
A plan prices your own dates and weighs hours as well as fares, so it can pick a different order from this page.
Put dates on it
Same cities on real dates, plus what one search cannot show: layovers long enough to count as a free city, two tickets that beat one, and cheaper days either side. No account and no card.
One press starts it on January 9, 2027 to January 23, 2027, 14 days, for 2 travelers. Our dates, not yours, and about two minutes.
Plan Athens, London and Madrid from Buenos Aires nowOpen the form instead and pick your own datesSigned out, 3 trips a day per address, priced from cached fares and the free sources, so some legs may be estimates and the plan says which. Signed in, legs are checked live, with 2 free trips you can change afterwards.