$817+ Cheap flights from San Francisco (SFO) to Klagenfurt (KLU)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — KLU
oct. 11 — oct. 181
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San Francisco to Klagenfurt
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Klagenfurt (KLU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated septiembre 11, 2025.
Round-trip from | $817 (Austrian Airlines) |
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Find flight deals from San Francisco to Klagenfurt
Cheapest flights from San Francisco to KlagenfurtExplore the most affordable flight options available from San Francisco to Klagenfurt. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.
Explore the most affordable flight options available from San Francisco to Klagenfurt. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.
This Austrian Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/148:25 amSFO - KLU
2 stops20h 30mAustrian Airlines
mar. 11/185:45 amKLU - SFO
2 stops24h 49mAustrian Airlines
Deal found 9/10![Austrian Airlines logo]()
$817
Cheapflights Fare Finder
Customize your flight search to find flights from San Francisco to Klagenfurt that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 11, 2025.
Use the filters below to find and compare flights from San Francisco to Klagenfurt that are best for you.
Fly from
San Francisco
Fly to
Klagenfurt
Route
Depart
Return
Price
San FranciscoKlagenfurt
SFO - KLU
SFOKLU
San Francisco
vie. 11/14
8:25 am-1:55 pm
2 stops20h 30m
Klagenfurt
mar. 11/18
5:45 am-9:34 pm
2 stops24h 49m
$817
San FranciscoKlagenfurt
SFO - KLU
SFOKLU
San Francisco
vie. 12/19
6:00 am-10:30 am
2 stops19h 30m
$1,057
San FranciscoKlagenfurt
SFO - KLU
SFOKLU
San Francisco
sáb. 12/20
9:40 pm-1:50 pm
2 stops31h 10m
$1,066
San FranciscoKlagenfurt
SFO - KLU
SFOKLU
San Francisco
vie. 12/19
10:35 pm-1:50 pm
3 stops54h 15m
$1,118
Best time to book a flight from San Francisco to Klagenfurt
Have a flexible travel schedule? Discover the best time to fly to Klagenfurt from San Francisco with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.