Do you need travel insurance for San Francisco?

Yes — you need travel insurance for San Francisco. The United States does not require it to enter, so no rule forces your hand, but the financial reality does. American medical care is among the most expensive anywhere, OHIP pays only a token amount abroad and never up front, and a single emergency in the Bay Area can produce a bill that dwarfs any premium. For a US trip, emergency medical coverage is as close to non-negotiable as travel insurance gets.

No rule, but a very real risk

The absence of a US insurance requirement misleads some travellers into treating coverage as optional. It is not. US hospitals, physicians and ambulances charge full private rates and bill you directly, with no public safety net for a visitor. An ambulance ride and ER assessment can run into the thousands before treatment; a serious admission can reach six figures. The question is not whether a rule forces you to buy — it is whether you could absorb that bill. For almost everyone, the answer is no.

Why OHIP will not save you

Most of OHIP’s out-of-country coverage ended in 2020. The remainder pays a token daily amount unrelated to US pricing, and OHIP never pays a foreign hospital directly. You would face the full bill and recover only a fraction later. In the country where medical costs are highest, provincial coverage is at its weakest. That gap is the entire reason to buy a policy.

What a San Francisco trip actually exposes you to

The city has a few distinctive ways to catch a visitor out:

• Steep hills. San Francisco’s gradients produce slips, trips and ankle injuries, especially in wet weather or poor footwear.
• A cool, foggy microclimate. Summer can be surprisingly cold and damp; underdressed visitors can end up unwell.
• Day trips. Drives to wine country, the coast or the parks add driving and outdoor risks beyond the city.
• Sudden illness. A stomach bug, infection or flare-up of an existing condition, billed at US rates.

A healthy, careful traveller can still be caught out, and the bill does not care how the problem started.

Why the usual substitutes fall short

• A credit card plan is frequently short in duration, low in its limit, and strict on age and pre-existing conditions. For the US, the cap can be well below a real hospital bill.
• Provincial coverage pays almost nothing abroad.
• An employer or group plan may help, but check its out-of-country limits and exclusions first.

For a US trip, a dedicated emergency medical policy with a high limit is the only dependable option.

Buy it before you leave

Emergency medical insurance must generally be purchased before departure — you cannot buy it mid-trip or after an incident. These plans have no age limit: travellers under 60 answer no medical questions, and those 60 and over complete a medical questionnaire that sets the price, not eligibility. If you have a pre-existing condition, confirm it meets the plan’s stability period so it is covered.

The bottom line

You need travel insurance for San Francisco not because the US requires it, but because US medical costs are extreme and OHIP will not protect you. Do not lean on a credit card certificate or provincial coverage to carry a US hospital bill. Buy a dedicated emergency medical plan with a high limit before you fly, and compare your options with a quote so you know your real price before you go.