London / The verdict
London or Paris?
Both, if your schedule allows it: Eurostar connects London and Paris in about 2 hours 16 minutes, and the family reports in the log suggest giving each city several days rather than squeezing one in. Choose Paris alone for a slower pace and lower costs, London alone for free museums and easy transit with children.
By The Real Traveler Experiences team.
The London story
London earns its scale. This is not a walkable postcard city but a string of villages glued together by the Tube, and its great trick is how much of the best of it is free: the big museums, the markets, the parks, the Sky Garden's floor-to-ceiling view for the price of a timed ticket, and the pub culture that threads it all together. The Tower's Crown Jewels, Westminster Abbey's Lady Chapel and an evening Thames-and-Westminster skyline deliver the paid hits when you want them.
The verdict in 30 seconds
Our pick: Both cities by train (runner-up: Paris)
Both, if your schedule allows it: Eurostar connects London and Paris in about 2 hours 16 minutes, and the family reports in the log suggest giving each city several days rather than squeezing one in. Choose Paris alone for a slower pace and lower costs, London alone for free museums and easy transit with children.
Go if
- You have 6 or more days and can split them between both cities using the Eurostar connection
- You want London's free museums and easy Tube travel and Paris's slower pace on the same trip
- You can arrange a UK ETA and a passport-ready Eurostar crossing and are comfortable changing hotels mid-trip
Skip if
- You have 3 days or fewer and need to commit to a single city
- You strongly prefer one city's pace and are not looking to split your time between two
- You cannot manage a mid-trip Eurostar transfer with luggage and a new hotel check-in
The options
London It depends
Travelers who want free major museums, easy transit with children and big parks, and can only commit to one city.
Good
- Major museums such as the Natural History Museum and the Science Museum charge no entry.
- A family comparison credits London with an easy Tube, free transit for children under 11 and larger parks.
- The same comparison gives London the edge for families worried about a language barrier.
Watch out
- A family comparison calls London notoriously expensive for hotels and dining, though its free museums soften that.
- One mother found four days in London more tiring than Paris because of its faster pace.
- Its signature paid sights are not cheap: the Tower of London runs 37 GBP and Westminster Abbey 31 GBP per official prices.
Paris It depends
Travelers who want art and architecture at a slower pace and somewhat lower day-to-day costs.
Good
- A family comparison rates Paris slightly more affordable overall than London.
- A mother who has done both twice says her children vote Paris for its slower pace.
- A father comparing both cities with his family says that if he had to pick a single city, it would be Paris.
Watch out
- Most major sights charge admission and need a timed ticket booked ahead, unlike several of London's free museums.
- A family comparison finds Paris Metro stations less stroller-friendly than London's Tube, with many lacking lifts or escalators.
- A single full day falls well short of the 5 to 6 days one family report recommends for Paris alone.
Both cities by train Go
Travelers with 6 or more days who want London's free museums and easy transit and Paris's slower pace, connected by a fast, frequent train.
Good
- Eurostar fares start from 39 GBP one way and cover London to Paris in about 2h16m to 2h37m.
- A solo traveler who split a trip between the two describes the Eurostar as easy, city center to city center with no airport transfer.
- A family comparison suggests doing both if time allows, and a mother who has done both suggests London first, then Paris to wind down.
Watch out
- Means booking a UK ETA and watching for the coming ETIAS system alongside two sets of timed museum tickets.
- Doubles the advance planning: a passport check plus the station border-check wait each way, which one journal warns needs real buffer time.
- Only makes sense with enough total days; splitting a short trip risks the rushed experience forum regulars warn about.
A rushed one-night stop in each city Skip
Only travelers with no other option who would rather see a fraction of both cities than all of one.
Good
- Technically touches both London and Paris inside a short trip.
Watch out
- Forum regulars told a first-timer that two nights in Paris, with one full day, is too rushed.
- A family report recommends 5 to 6 days for Paris alone, far more than a single overnight allows.
- Leaves little time to use the Eurostar border-check window or any pre-booked timed tickets.
| Criterion | London | Paris | Both cities by train | A rushed one-night stop in each city |
|---|---|---|---|---|
| Official price of the signature sight | Tower of London 37 GBP, or Westminster Abbey 31 GBP | Louvre 22 EUR (EEA) or 32 EUR (non-EEA), or Arc de Triomphe 22 EUR (Apr to Sep) | Both apply: London's sight plus Paris's sight | Both apply, with little time to use either ticket fully |
| Getting between them by Eurostar | Not needed if staying only in London | Not needed if staying only in Paris | Fares from 39 GBP one way, about 2h16m to 2h37m | Same train, used on a single tight day |
| Daily cost family reports describe | Called notoriously expensive for hotels and dining, though free museums offset some of it | Rated slightly more affordable overall in a family comparison | Both cities' cost levels apply across the trip | Both apply, with less time to make use of any savings |
| Free museums | Major museums, including the British Museum, are free entry | Most major sights charge; the Louvre and the Arc de Triomphe both need a paid, timed ticket | London's free museums offset some of Paris's paid entries | Little time to use free entry or timed tickets fully |
| Friction travelers report | A faster pace that one family found more tiring | Paid, timed tickets and Metro stations that are harder with a stroller | Both cities' frictions apply, plus station time for the Eurostar | Same frictions, with no slack to absorb them |
| Entry document for a US visitor | A UK ETA, valid two years | No separate Schengen document required alongside a passport as of the date checked; a future ETIAS system is expected | Both apply on the same trip | Both apply, plus the border-check wait each way |
What it costs
- Tower of London standard adult entry: £37 (official price as of a September 2026 archived page; the live page blocked automated access at check time). Official source, checked Sep 2026.
- Westminster Abbey standard adult entry: £31. Official source, checked Sep 2026.
- London Eye standard entry, booked online: £29 (from price, varies with date and demand; walk-up price is 39 GBP). Official source, checked Sep 2026.
- Louvre standard admission, EEA visitor: €22 (32 EUR for non-EEA visitors; free under 18 and for EEA citizens under 26). Official source, checked Sep 2026.
- Arc de Triomphe individual ticket, April to September: €22 (16 EUR October to March and on Wednesdays in high season; free under 18). Official source, checked Sep 2026.
- Eurostar, London to Paris, one way, lowest fare: £39 (about 2h16m for the fastest service, up to 2h37m for others; fares rise closer to the travel date). Official source, checked Sep 2026.
What travelers report
Based on 6 traveler reports (Oct 2024 to May 2026) and the official sources linked on this page. 1 was negative.
What people like
- Travelers who split their trip describe the Eurostar between the two cities as easy, and one London writer even managed Paris as a same-day trip.
- London's free major museums are described as a real saving for families next to Paris's paid, timed tickets.
- Paris wins family reports on pace: one mother says her children vote Paris for its slower rhythm, and a father says that with one pick it would be Paris.
- London gets credit from a family comparison for an easy Tube, free travel for children under 11 and big open parks.
What people complain about
- Forum regulars told a first-timer that two nights in Paris, with one full day, is too rushed, and a solo traveler warns the Eurostar station needs buffer time.
- London is called notoriously expensive for hotels and dining in a family comparison, which rates Paris slightly more affordable overall.
- One mother found four days in London more tiring than her time in Paris, given London's faster pace.
- A same-day Paris trip from London meant a 4.30am start that the writer found exhausting.
How to do it right
- Match your trip length to what family reports suggest: one mother who has done both twice puts Paris at 5 to 6 days and London at 4 to 5.
- Book the Eurostar between St Pancras and Gare du Nord in advance; fares start from 39 GBP one way for the roughly 2h16m journey.
- Book the Louvre and other timed Paris sights ahead of time, and check the official Tower of London and Westminster Abbey pages for London, since all four recommend or require timed entry.
- If only one city fits, match the pick to your priority: free museums, big parks and easy transit for London, a slower pace and lower day-to-day costs for Paris.
- If you do both, one family report suggests London first for its faster pace, then Paris to wind down.
- Confirm entry documents ahead of travel: a UK ETA for the London leg, and watch for the coming ETIAS system before a Paris leg.
The trap to avoid
Compressing both cities into one rushed stop each is the most common overreach: forum regulars told a first-timer that two nights in Paris leave only one full day, and a solo traveler warns the Eurostar station still needs buffer time.
What to do instead
Why this verdict
The evidence splits less on which city is better and more on how much time each deserves. A mother who has taken her children to both cities twice puts Paris at 5 to 6 days and London at 4 to 5, and says her kids vote Paris for its slower pace. A father comparing his family’s trips gives London the edge on transit, free museums and parks, gives Paris the edge on cost and weather, and still says that with a single pick it would be Paris. Both families suggest seeing the two together when time allows, and a solo traveler who split a work trip between them describes the Eurostar as the easy part.
A single rushed stop in each city is the option the evidence argues against most clearly. Forum regulars told a first-timer planning five countries that two nights in Paris leave only one full day there, and called the plan too rushed. Even the shortest version can work with the right expectations: a London writer took the first Eurostar to Paris and the evening train back, found the 4.30am start exhausting, and still judged the day satisfying because it was planned around one or two themes.
When a trip only has room for one city, the reports track priority rather than one city beating the other outright. London suits families who want free museums, big parks and an easy Tube, with free travel for children under 11. Paris suits travelers who want a slower rhythm and somewhat lower day-to-day costs, though its big sights charge for timed entry. A travel creator comparing the two on look, smell, food and feel finds each has its own identity, which matches the family reports: neither is a clear loser.
Timing and tickets
Book the Eurostar between St Pancras and Gare du Nord ahead of the trip; fares start from 39 GBP one way for the roughly 2h16m journey, and prices climb closer to the travel date. Book timed tickets for the Louvre and the Arc de Triomphe if Paris is on the itinerary, and check the Tower of London and Westminster Abbey’s official pages for London, since all four recommend or require a timed slot. A US traveler with a UK ETA does not need a separate Schengen document alongside a passport as of the date checked, though a future ETIAS system is expected, and Eurostar advises arriving early for the station border checks, a buffer one trip journal warns the crossing still needs.
Book or check times
Tower of London ticketsWestminster Abbey ticketsLondon Eye ticketsLouvre ticketsArc de Triomphe tickets and informationEurostar London to Paris tickets
Questions
How long does the Eurostar between London and Paris take?
Eurostar's own site lists the London to Paris journey at about 2 hours 16 minutes for the fastest service, with some trains taking up to 2 hours 37 minutes. One-way fares start from 39 GBP, though prices rise closer to the travel date.
Which city is cheaper?
One family comparison in the evidence log rates Paris slightly more affordable overall and calls London notoriously expensive for hotels and dining, while noting that London's free museums keep a budget trip possible.
Do you need a visa or extra document for a day trip from London to Paris?
A US citizen holding a UK ETA does not need a separate Schengen document beyond a passport as of the date checked, though a future ETIAS system is expected for the region. Eurostar advises arriving early for the station border checks, and one trip journal warns the station needs real buffer time.
How many days do you need in each city?
A mother who has taken her children to both cities twice suggests 5 to 6 days for Paris and 4 to 5 for London, so a combined trip works best with 6 or more days total. Forum regulars told a first-timer that two nights in Paris, with one full day, is too rushed.
Can you see Paris as a day trip from London?
It can be done: one London writer took the first Eurostar out and the evening train back, and found the day exhausting but satisfying. The writer's advice is to plan the day around one or two themes rather than trying to see everything.
Is London or Paris better for free museums?
London: both family reports in the log point to free entry at major museums such as the Natural History Museum and the Science Museum. Paris's major sights, including the Louvre and the Arc de Triomphe, require a paid, timed ticket.
Pack for it
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