The onward ticket, explained
Costa Rica requires visitors to show proof they're leaving within 90 days — and it's the airline, not the border officer, who usually enforces it. No proof of onward travel at check-in, no boarding pass. This is the #1 thing that trips people up, and it ruins trips every week of the year.
It doesn't matter that you "plan to take a bus" or "haven't decided yet." The gate agent needs to see a ticket. One-way flight deals are great until they cost you the whole trip at the counter.
What counts as proof of exit
A cheap refundable bus or flight out counts. An international bus ticket to Nicaragua or Panama is the classic budget proof — buy it, save the confirmation offline, and refund or use it later. A fully refundable onward flight works the same way.
What doesn't count: a vague plan, a hotel booking, or "I'll figure it out there." Have the confirmation ready at check-in — on your phone is fine, but saved offline, because airport wifi always fails when it matters most.
Passport validity and visa-free stays
Most North American and European visitors get a visa-free tourist stamp — typically up to 90 days, though the exact length is at the immigration officer's discretion. Don't assume your stamp says 90; check what you actually got before you leave the airport.
Passport validity rules vary by nationality — some travelers need months of validity beyond their travel dates. This is exactly the kind of rule that changes quietly, so check your government's travel page for Costa Rica before you fly, not the day before.
Before you fly: the verification habit
Entry rules shift — document requirements, validity windows, and health formalities have all changed in recent years. A blog post from 2023 (this guide included, eventually) is not an official source. The habit: check your government's Costa Rica travel advisory and your airline's requirements about a week before departure.
Screenshot or print the key confirmations: onward ticket, first-night accommodation, travel insurance if you carry it. Border crossings go faster with paper in hand, and you'll have it ready if anyone asks.
Questions people ask
I bought a one-way ticket — am I in trouble?
Not if you buy proof of onward travel before check-in. A cheap refundable bus or flight out of Costa Rica within 90 days solves it completely.
Does a bus ticket to Nicaragua really count as an onward ticket?
Yes — it's proof of exit within the window, which is what the airline needs to see. Keep the confirmation accessible offline at check-in.
How long can I stay in Costa Rica as a tourist?
Typically up to 90 days visa-free for most North American and European nationalities, at the immigration officer's discretion. Rules change — verify with official sources before you fly.
