Helsinki (Vantaa) to Phoenix (HEL–PHX) — Airlines, Schedules & Connections

Finland is part of the US Visa Waiver Program. Finnish passport holders can enter the United States for up to 90 days for tourism or business by obtaining an ESTA (Electronic System for Travel Authorization) before departure. The ESTA costs $21 and is valid for 2 years or until the passport expires, whichever comes first. Apply at least 72 hours before departure.

You must hold an e-passport (biometric chip). Passport must be valid for at least 6 months beyond the intended stay. Travelers who have visited Iraq, Syria, Iran, North Korea, Sudan, Libya, Somalia, Yemen, or Cuba after March 2011 may be ineligible and need a B1/B2 visa instead.

PHX Sky Train (free, 24h) connects T3 and T4 to the 44th Street/Washington light rail station in 5 minutes. Valley Metro Rail reaches downtown Phoenix in 20 minutes ($2). Uber and Lyft pick up at Ground Transportation on the lower level; follow signs. Taxis are metered; downtown Phoenix costs $20–30.Rental car agencies are consolidated in the Rental Car Center; the Sky Train connects there from both terminals without going to the street. For Scottsdale, Tempe, or Chandler, ride-hails are practical ($25–50). Express buses serve some suburban destinations.

Hot desert climate. Summers (June–September) are extreme. Daytime temperatures regularly exceed 43°C, occasionally reaching 48°C. Heat alone rarely cancels flights, but density altitude affects small aircraft performance. Monsoon season (July–mid-September) brings dramatic dust storms (haboob) that close the airport when they hit, plus intense flash-flooding thunderstorms that ground departures for 30–90 minutes.

Winters are exceptionally mild (10–22°C) with virtually no precipitation and near-constant sunshine. PHX has one of the lowest weather cancellation rates of any major US airport from November through April. Spring and fall are pleasant; late May and early June are hot and dry before monsoon arrives.