Stopover
Plan a trip

The cheapest order to fly London, Paris and Barcelona from Los Angeles

There are 6 ways to fly these cities. They do not cost the same. The cheapest works out at about $762 a person and the most expensive at $968, a difference of $206 for visiting exactly the same places.

Fly them in this order

Los Angeles → Paris → Barcelona → London → Los Angeles

About $762 per person in flights, based on fares recently seen on these routes.

Every order, priced

  1. Los Angeles → Paris → Barcelona → London → Los Angeles$762
    cheapest order
  2. Los Angeles → London → Barcelona → Paris → Los Angeles$803
    $41 more per person
  3. Los Angeles → London → Paris → Barcelona → Los Angeles$827
    $65 more per person
  4. Los Angeles → Paris → London → Barcelona → Los Angeles$839
    $77 more per person
  5. Los Angeles → Barcelona → Paris → London → Los Angeles$935
    $173 more per person
  6. Los Angeles → Barcelona → London → Paris → Los Angeles$968
    $206 more per person

Why end in London

  1. Los Angeles to Paris$302
  2. Paris to Barcelona$37
  3. Barcelona to London$19
  4. London to Los Angeles$404
  • Out of Los Angeles, the cheapest first flight goes to London at about $290, but the cheapest order starts in Paris at $302 because the rest of the route is cheaper that way.
  • Going home, London is the cheapest city to leave from at about $404, against $465 from Barcelona.
  • The dearest order pays $458 for Los Angeles to Barcelona, a flight the cheapest order never takes.
  • London to Los Angeles is 53% of what the cheapest order spends on flights, so it is the leg to watch.

Between the cities

  • Paris to Barcelona: about 830 km (520 miles) as the crow flies. Also by ground: TGV, about 6h 40m, usually $50 to $150.
  • Barcelona to London: about 1,140 km (710 miles) as the crow flies. No train or bus we would suggest instead of flying.

Entry rules on a US passport

  • US passport: visa-free in the Schengen area for 90 days in any 180. The Entry/Exit System registers biometrics at the border, and the ETIAS pre-travel authorization may now be required; check the official site. Official source
  • US passport: the UK requires an Electronic Travel Authorisation (ETA) for visa-free visitors, including short visits and landside transit. Apply via the UK ETA app before travel. Official source

Rules change; check the official source for your passport and dates before you book.

How much the order matters here

Getting the order right is worth $206 a person on this trip, 27% of what the cheapest way round costs. Of the 107 trips we price in full, that is number 36 for how much the order matters, one of the trips where it matters most: flying these cities in the wrong order is an expensive mistake.

The same cities from other airports

The cheapest order depends on where you start. From Los Angeles it starts in Paris.

  • From New Yorkstart in Paris, about $458 a person, $241 less than the dearest order
  • From San Franciscostart in London, about $797 a person, $87 less than the dearest order
  • From Chicagostart in Barcelona, about $822 a person, $200 less than the dearest order
  • From Atlantastart in London, about $878 a person, $200 less than the dearest order

What these numbers are

Cached one-way fares, 12 of 12 legs priced from real observations, put together on November 12, 2026, from fares departing November 13, 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.

Other trips priced this way

From Los Angeles

Trips through the same cities

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 16, 2027 to January 30, 2027, 14 days, for 2 travelers. Our dates, not yours, and about two minutes.

Plan London, Paris and Barcelona from Los Angeles nowOpen the form instead and pick your own dates

Signed 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, your first trip also searches Google Flights live, and you can change your trips afterwards.