Short answer: for the four visitor visas we've checked against official sources, none says you must buy a paid ticket before applying. Where they mention travel at all, they ask for evidence of your plans. Here's what each says, in their own words.
Schengen area (European Commission)
The Commission lists "supporting documents relating to the purpose of your stay, evidence of financial means and accommodation during your stay, and evidence of your intention to return to your home country after your stay." Individual consulates publish their own checklists, which often mention a flight itinerary or reservation.
Source: European Commission (page updated 2 December 2025, checked 6 October 2026).
United Kingdom (GOV.UK)
The Home Office guide lists "flight bookings (unless transiting)" and "hotel bookings" among documents that are "less useful as evidence", and warns applicants to bear in mind that documents don't guarantee success "when making any bookings".
Source: GOV.UK (page updated 25 February 2026, checked 6 October 2026).
Canada (IRCC)
IRCC suggests documents showing how long you'll stay and what you'll do, such as "flight details" and "proof of accommodation".
Source: IRCC (checked 6 October 2026).
Australia (Department of Home Affairs)
The Visitor visa (subclass 600) Tourist stream page lists a cost "From AUD250.00" and stays of up to 12 months, and doesn't list a flight booking among its requirements. See our Australia guide.
Source: Department of Home Affairs (page updated 1 July 2026, checked 6 October 2026).
Why buying early is a gamble
Visa processing takes time — the Commission gives 15 days as the normal Schengen processing time, extendable to 45 — and outcomes aren't guaranteed. A non-refundable fare bought before a decision can be lost if the visa is refused or arrives after your travel date. Even refundable fares usually cost more and may carry change fees.
The alternative: a reservation that matches your plan
A flight reservation documents your route, dates and names without paying the fare. Paired with a hotel reservation, it covers the "plans" part of many checklists. You buy the real ticket once your visa is approved.
It's not right for everyone: if you're applying for a UK visitor visa and not transiting, GOV.UK's guidance suggests a booking adds little. Read our country guides before you buy, or compare plans if you've confirmed you need one.