Austrian Airlines Flight KL378 Deals & Information (2025/2026)

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Austrian Airlines Flight 378 Route Deals From $218

The cheapest prices found with in the last 7 days for return flights were $289 and $218 for one-way flights to Vienna Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

What route does flight number OS378 take?
OS378 operates between AMS and VIE directly. This service generally takes 1 hour and 55 minutes.
What kind of plane is on flight number OS378?
There's a strong chance you'll find yourself stepping on board an Embraer 195 if you're on flight number OS378. This flight nearly always leaves from Schiphol Airport (AMS) and comes in to land at VIE.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your OS378 flight with Travelocity, please visit our Customer Service Portal.