Why Airport Currency Exchange Is the Worst Deal in Travel
The math behind those 'no commission' kiosks and what to do instead.
The trap is the rate, not the fee
Airport currency exchange counters love to advertise "0% commission" in big letters. Technically true. The catch is in the exchange rate, where the real cost lives.
A typical airport kiosk charges a markup of 8% to 15% versus the mid-market rate. On a $500 conversion, that's $40–$75 evaporating before you've left the terminal.
A real-world example
Suppose the mid-market EUR/USD rate is 1.0850.
- A specialist online service might offer 1.077 (0.7% markup).
- A high-street bank might offer 1.055 (2.7% markup).
- An airport kiosk might offer 0.985 to buy euros (~9.2% markup).
On $500 of currency, the airport kiosk gives you about 45 fewer euros than a specialist service. That's a meal in Paris or two days of public transport — gone.
Why airport rates are so bad
It's not random. Airport kiosks have:
- High rents: prime real estate inside terminals.
- Captive customers: no time to comparison-shop.
- No competition: typically 1–2 operators per terminal.
- High operational costs: armored cash logistics, 24/7 staffing.
The economics force a high markup, and the captive market lets them get away with it.
What to do instead
In order of best to worst:
- No-fee debit card + ATM withdrawal in destination. Best rate, lowest cost. Use Schwab, Fidelity, Wise, or Revolut.
- No-fee credit card for purchases. Skip the cash exchange entirely where possible.
- Order currency online before flying (some banks/services offer airport-pickup or home-delivery rates much better than counter rates).
- Bank branch in your home city before leaving (mid-tier rates).
- In-city bureau de change at destination (better than airport, worse than online).
If you absolutely must exchange at the airport, exchange the minimum needed to get to your hotel or first ATM.
The "buy back" trick
Airport kiosks will happily sell you back leftover currency at the end of your trip — at *another* terrible rate. You can lose 8% on the way in and another 8% on the way out, paying ~16% for the round trip on what you didn't spend.
Better: spend leftover small bills, give to charity boxes, or save them for your next trip if you'll travel again soon.
When airport exchange is actually fine
- You forgot completely and need cab fare.
- The local currency isn't available at home banks.
- Amounts are tiny (under $30 equivalent).
- You're in a destination with no functioning ATMs in the airport.
In all other cases, walk past the kiosk.
Key takeaways
- Airport exchanges typically charge 8%–15% markups disguised as "no commission."
- ATM withdrawals with a fee-refund debit card are usually 10× cheaper.
- Order currency in advance if you must have cash on arrival.
- Buy-back rates are equally bad — don't over-exchange.
- For most modern travelers, you don't need airport cash at all.