The cheapest order to fly London, Paris and Rome from Los Angeles
There are 6 ways to fly these cities. They do not cost the same. The cheapest works out at about $755 a person and the most expensive at $841, a difference of $86 for visiting exactly the same places.
Fly them in this order
Los Angeles → Paris → Rome → London → Los Angeles
About $755 per person in flights, based on fares recently seen on these routes.
Every order, priced
- Los Angeles → Paris → Rome → London → Los Angeles$755cheapest order
- Los Angeles → Rome → Paris → London → Los Angeles$777$22 more per person
- Los Angeles → London → Rome → Paris → Los Angeles$781$26 more per person
- Los Angeles → Rome → London → Paris → Los Angeles$782$27 more per person
- Los Angeles → Paris → London → Rome → Los Angeles$816$61 more per person
- Los Angeles → London → Paris → Rome → Los Angeles$841$86 more per person
Why Paris first
- Los Angeles to Paris$285
- Paris to Rome$40
- Rome to London$30
- London to Los Angeles$400
- Out of Los Angeles, Paris is the cheapest first stop at about $285. Rome would be $304.
- Going home, London is the cheapest city to leave from at about $400, against $461 from Rome.
- The dearest order pays $461 for Rome to Los Angeles, 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 Rome: about 1,110 km (690 miles) as the crow flies. No train or bus we would suggest instead of flying.
- Rome to London: about 1,430 km (890 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 authorisation 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 $86 a person on this trip, 11% of what the cheapest way round costs. Of the 72 trips we price in full, that is number 66 for how much the order matters, one of the smaller gaps: on this trip your dates are likely to matter more than the order.
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 $615 a person, $55 less than the dearest order
- From Chicagostart in Rome, about $762 a person, $580 less than the dearest order
- From Washingtonstart in Paris, about $896 a person, $143 less than the dearest order
- From Atlantastart in London, about $911 a person, $157 less than the dearest order
What these numbers are
Cached one-way fares, 12 of 12 legs priced from real observations, put together on October 29, 2026, from fares departing November 1, 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 2, 2027 to January 16, 2027, 14 days, for 2 travelers. Our dates, not yours, and about two minutes.
Plan London, Paris and Rome from Los Angeles nowOpen the form instead and pick your own datesSigned out, 3 plans 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.