Airport exchange bureaus in Moscow and St. Petersburg offer competitive rates for converting USD/EUR to RUB, especially for cardholders with no Russian account. However, fees can be hidden in the spread, so checking the rate before confirming is essential. Some banks provide prepaid cards that can be loaded directly at the airport kiosks. Using a mobile wallet with a linked foreign card often yields a better rate than cash exchange. Travelers should avoid exchanging large sums in airports and opt for city‑center banks for better value.