HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Philadelphia

$1,200+ Cheap flights from Klagenfurt (KLU) to Philadelphia (PHL)

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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
KLU — PHL
Dec 2 — Dec 91
Tue 12/2
Tue 12/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Klagenfurt to Philadelphia with Cheapflights

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.

Find flight deals from Klagenfurt to Philadelphia

Best flights from Klagenfurt to Philadelphia
Discover carefully curated flight deals from Klagenfurt to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 2, 2025.

This Air Canada deal was found by Cheapflights users on 11/1. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/125:45 amKLU - PHL
2 stops38h 02mAir Canada
Mon 3/163:30 pmPHL - KLU
2 stops17h 25mAir Canada
Deal found 11/1$1,200

Cheap flight deals from Klagenfurt to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Klagenfurt (KLU) to Philadelphia (PHL). 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 November 2, 2025.

Round-trip from

$1,200
(Air Canada)
From Klagenfurt to Philadelphia
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Klagenfurt to Philadelphia 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 November 2, 2025.
Use the filters below to find and compare flights from Klagenfurt to Philadelphia that are best for you.

Fly from

Klagenfurt

Fly to

Philadelphia

Route

Depart

Return

Price

KlagenfurtPhiladelphia

KLU - PHL

KLUPHL

Klagenfurt

Thu 3/12

5:45 am-2:47 pm

2 stops38h 02m

Philadelphia

Mon 3/16

3:30 pm-1:55 pm

2 stops17h 25m

$1,200

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Best time to book a flight from Klagenfurt to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Klagenfurt 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.

Cheapflights Insights

Everything you need to know about your flight from Klagenfurt to Philadelphia

What is the cheapest month to book a flight from Klagenfurt to Philadelphia?

Currently, September is the cheapest month in which you can book a flight from Klagenfurt to Philadelphia (average of $534). Flying from Klagenfurt to Philadelphia in August is currently the most expensive (average of $653). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Klagenfurt to Philadelphia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Klagenfurt to Philadelphia?

    For as low as $1,200, Air Canada can have you in Philadelphia from Klagenfurt in 38h 02m. Airlines will cover a distance of 4277 mi.

  • Can I find deals for flights from Klagenfurt to Philadelphia that include hotel bookings?

    Yes. In addition to deals on Klagenfurt to Philadelphia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Klagenfurt to Philadelphia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Klagenfurt to Philadelphia.

  • Can I find deals for business class flights from Klagenfurt to Philadelphia?

    Yes. Cheapflights offers flight deals from Klagenfurt to Philadelphia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Klagenfurt to Philadelphia?

    Currently, September is the cheapest month in which you can book a flight from Klagenfurt to Philadelphia (average of $534). Flying from Klagenfurt to Philadelphia in August is currently the most expensive (average of $653). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
King of Prussia
Pottstown
Reading
Ocean City
Cherry Hill
Dewey Beach
Ephrata
Camden
Vineland
Milford
Dover
Elkton
Essington
Willow Grove
Newark
Millville
Chester
Exton
Havre de Grace

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights