A Europe trip budget should explain itself. One total cannot tell you whether the route is expensive, the dates are difficult, or a single flight assumption is doing most of the damage. Break the estimate into parts that can be changed independently.
1. International transport
Record airfare or long-distance rail to and from Europe separately. Include checked bags, seats, payment fees, and the cost of reaching the departure airport. If the origin is not known, leave this category unresolved rather than inserting a generic number.
2. Lodging
Multiply real nightly ranges by the number of nights in each city. Check whether taxes, breakfast, cleaning fees, and late arrival are included. A trip average can conceal a costly weekend, so keep city-level figures until the route is settled.
3. Intercity movement
Include trains, buses, ferries, regional flights, reservation fees, baggage, and transfers. Price hotel-to-hotel travel, not just the ticket. A route with six bases may spend far more here than a route with three.
4. Daily life
Separate food, local transit, and ordinary sightseeing. Build the allowance around the intended behavior: markets and neighborhood restaurants produce a different budget from tasting menus and private tours. Include arrival-day and travel-day meals.
5. One-off costs
Insurance, visas where applicable, mobile data, airport parking, equipment, and major ticketed experiences belong in visible categories. The same is true for city taxes collected at check-in — the kind of line item that hidden costs of European travel covers in more depth.
6. Contingency
Add 10–15% after the estimate, not by quietly inflating every line. The contingency absorbs rate changes and small omissions; it should not disguise a route that is already over budget.
What our relative cost index actually shows
FarSerene’s route optimizer scores every candidate city on a relative cost index (0 = cheapest in the current candidate pool, 1 = most expensive) before it ever prices a specific hotel or ticket. It is not a live price feed — it’s the input that decides which cities get weighted toward a budget route versus a splurge route. Across our current Western Europe candidate set, the spread looks like this:
| City | Relative cost index |
|---|---|
| Porto | 0.35 |
| Lisbon | 0.40 |
| Florence | 0.50 |
| Madrid | 0.50 |
| Rome, Barcelona | 0.55 |
| Paris | 0.75 |
Read this as a ranking, not a currency figure: Paris scores roughly double Porto’s index, which tracks with real lodging-rate spreads between the two. A route that swaps one Paris night for one Porto night doesn’t shift the total by a fixed percentage — it shifts by whatever the two cities’ indices imply once nights, not just cities, are counted. This is the same index the planner uses internally; see our data sources for what still comes from live supplier quotes versus this editorial baseline.
Use low and high totals
A range is more honest than a single exact number before supplier quotes are locked. The low figure shows the trip under favorable choices; the high figure shows whether it remains comfortable when the cheapest room or train disappears.
See How much does a Europe trip cost?, How much does a European vacation cost?, and What should a Europe trip budget include?. FarSerene’s data-sources page explains the difference between editorial estimates and current supplier quotes.
