When did momondo last update prices for flights from Klagenfurt Airport to United States?

Prices for flights from Klagenfurt Airport to United States were last updated today.

How old do you have to be to fly from Klagenfurt Airport to United States?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Klagenfurt Airport to United States.

What documentation or ID do you need to fly to United States?

The necessary travel and health documents for your United States trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$659 Cheap Flights from Klagenfurt to the United States in 2026

Find the cheapest flights from Klagenfurt to the United States

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:50 am - 3:20 pmKLU Klagenfurt-SFO San Francisco

18h 30m2 stops Vienna Intl Frankfurt am Main

4:40 pm - 2:00 pmSFO San Francisco-KLU Klagenfurt

36h 20m2 stops London Heathrow Vienna Intl

$678Multiple Airlines

Mon, Sep 21 - Sun, Sep 27

5:50 am - 9:48 pmKLU Klagenfurt-SFO San Francisco

24h 58m2 stops Vienna Intl Montreal Pierre Elliott Trudeau Intl

8:10 am - 1:55 pmSFO San Francisco-KLU Klagenfurt

20h 45m2 stops Montreal Pierre Elliott Trudeau Intl Vienna Intl

$687Air Canada

Thu, Sep 24 - Sun, Sep 27

5:50 am - 8:59 pmKLU Klagenfurt-SFO San Francisco

24h 09m2 stops Vienna Intl Toronto Pearson Intl

8:10 am - 1:55 pmSFO San Francisco-KLU Klagenfurt

20h 45m2 stops Toronto Pearson Intl Vienna Intl

$692Air Canada

Thu, Sep 24 - Sun, Sep 27

5:50 am - 8:47 pmKLU Klagenfurt-SFO San Francisco

23h 57m2 stops Vienna Intl Montreal Pierre Elliott Trudeau Intl

4:40 pm - 2:00 pmSFO San Francisco-KLU Klagenfurt

36h 20m2 stops Toronto Pearson Intl Vienna Intl

$693Air Canada

Thu, Sep 24 - Sun, Sep 27

5:50 am - 3:24 pmKLU Klagenfurt-SFO San Francisco

42h 34m2 stops Vienna Intl Toronto Pearson Intl

8:30 am - 1:55 pmSFO San Francisco-KLU Klagenfurt

20h 25m2 stops Toronto Pearson Intl Vienna Intl

$695Air Canada

Thu, Sep 24 - Sun, Sep 27

5:50 am - 3:24 pmKLU Klagenfurt-SFO San Francisco

42h 34m2 stops Vienna Intl Toronto Pearson Intl

8:30 am - 1:55 pmSFO San Francisco-KLU Klagenfurt

20h 25m2 stops Toronto Pearson Intl Vienna Intl

$698Air Canada

Thu, Sep 24 - Sun, Sep 27

11:15 am - 9:39 pmKLU Klagenfurt-LAX Los Angeles

43h 24m2 stops Vienna Intl Montreal Pierre Elliott Trudeau Intl

8:30 am - 10:30 amLAX Los Angeles-KLU Klagenfurt

17h 00m2 stops Montreal Pierre Elliott Trudeau Intl Vienna Intl

$712Multiple Airlines

Fri, Jan 8 - Mon, Jan 25

3:00 pm - 1:55 pmKLU Klagenfurt-EWR Newark

28h 55m1 stop Vienna Intl

5:40 pm - 2:00 pmEWR Newark-KLU Klagenfurt

14h 20m1 stop Vienna Intl

$714Austrian Airlines

Wed, Sep 23 - Thu, Oct 8

11:40 am - 1:45 pmKLU Klagenfurt-BOS Boston Logan Intl

32h 05m2 stops Vienna Intl Frankfurt am Main

6:55 pm - 10:55 amBOS Boston Logan Intl-KLU Klagenfurt

10h 00m1 stop Vienna Intl

$717Multiple Airlines

Thu, Nov 19 - Sun, Nov 22

11:40 am - 1:30 pmKLU Klagenfurt-BOS Boston Logan Intl

31h 50m1 stop Vienna Intl

6:55 pm - 10:55 amBOS Boston Logan Intl-KLU Klagenfurt

10h 00m1 stop Vienna Intl

$719Austrian Airlines

Thu, Nov 19 - Sun, Nov 22

Cheap last minute flights

Enter your travel dates to find the best prices.

3:00 pm - 11:30 amKLU Klagenfurt-EWR Newark

26h 30m2 stops Vienna Intl Amsterdam Schiphol

5:40 pm - 2:00 pmEWR Newark-KLU Klagenfurt

14h 20m1 stop Vienna Intl

$941Austrian Airlines

Wed, Aug 26 - Fri, Sep 18

3:00 pm - 1:30 pmKLU Klagenfurt-EWR Newark

28h 30m2 stops Vienna Intl Zurich

9:35 am - 2:00 pmEWR Newark-KLU Klagenfurt

22h 25m2 stops London Heathrow Vienna Intl

$943Austrian Airlines

Wed, Aug 26 - Fri, Sep 18

3:00 pm - 7:19 pmKLU Klagenfurt-BOS Boston Logan Intl

34h 19m2 stops Vienna Intl Washington, D.C. Dulles Intl

10:00 pm - 6:00 pmBOS Boston Logan Intl-KLU Klagenfurt

14h 00m2 stops Frankfurt am Main Vienna Intl

$1,122Multiple Airlines

Tue, Aug 25 - Sun, Aug 30

6:40 pm - 5:40 pmKLU Klagenfurt-BOS Boston Logan Intl

29h 00m2 stops Vienna Intl Munich Franz Josef Strauss

10:00 pm - 6:00 pmBOS Boston Logan Intl-KLU Klagenfurt

14h 00m2 stops Frankfurt am Main Vienna Intl

$1,141Lufthansa

Mon, Aug 24 - Sun, Aug 30

3:00 pm - 1:05 pmKLU Klagenfurt-LAX Los Angeles

31h 05m1 stop Vienna Intl

3:05 pm - 6:00 pmLAX Los Angeles-KLU Klagenfurt

17h 55m1 stop Vienna Intl

$1,159Austrian Airlines

Wed, Aug 26 - Sun, Aug 30

3:00 pm - 8:05 pmKLU Klagenfurt-JFK New York John F Kennedy Intl

35h 05m2 stops Vienna Intl Frankfurt am Main

9:45 pm - 2:00 pmJFK New York John F Kennedy Intl-KLU Klagenfurt

10h 15m1 stop Vienna Intl

$1,189Multiple Airlines

Wed, Aug 26 - Fri, Sep 18

3:00 pm - 8:05 pmKLU Klagenfurt-JFK New York John F Kennedy Intl

35h 05m2 stops Vienna Intl Frankfurt am Main

9:50 pm - 2:00 pmJFK New York John F Kennedy Intl-KLU Klagenfurt

34h 10m2 stops Frankfurt am Main Vienna Intl

$1,191Lufthansa

Wed, Aug 26 - Fri, Sep 18

3:00 pm - 1:50 pmKLU Klagenfurt-BOS Boston Logan Intl

28h 50m1 stop Vienna Intl

10:00 pm - 6:00 pmBOS Boston Logan Intl-KLU Klagenfurt

14h 00m2 stops Frankfurt am Main Vienna Intl

$1,205Multiple Airlines

Tue, Aug 25 - Sun, Aug 30

3:00 pm - 1:05 pmKLU Klagenfurt-LAX Los Angeles

31h 05m1 stop Vienna Intl

3:05 pm - 6:00 pmLAX Los Angeles-KLU Klagenfurt

17h 55m1 stop Vienna Intl

$1,273Austrian Airlines

Tue, Aug 25 - Sun, Aug 30

3:00 pm - 5:40 pmKLU Klagenfurt-BOS Boston Logan Intl

32h 40m2 stops Vienna Intl Munich Franz Josef Strauss

8:05 pm - 6:00 pmBOS Boston Logan Intl-KLU Klagenfurt

15h 55m2 stops Munich Franz Josef Strauss Vienna Intl

$1,286Lufthansa

Tue, Aug 25 - Sun, Aug 30

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Air Canada flights from Klagenfurt to United States

Our best Air Canada deals on Klagenfurt to United States flight tickets

Air Canada

Sep 24

KLU5:50 amKlagenfurt

24h 58m

2 stops

SFO9:48 pmSan Francisco

Sep 27

SFO8:10 amSan Francisco

20h 45m

2 stops

KLU1:55 pmKlagenfurt

$687

Air Canada

Sep 24

KLU5:50 amKlagenfurt

24h 09m

2 stops

SFO8:59 pmSan Francisco

Sep 27

SFO8:10 amSan Francisco

20h 45m

2 stops

KLU1:55 pmKlagenfurt

$692

Air Canada

Sep 24

KLU5:50 amKlagenfurt

23h 57m

2 stops

SFO8:47 pmSan Francisco

Sep 27

SFO4:40 pmSan Francisco

36h 20m

2 stops

KLU2:00 pmKlagenfurt

$693

Austrian Airlines flights from Klagenfurt to United States

Our best Austrian Airlines deals on Klagenfurt to United States flight tickets

Austrian Airlines

Sep 23

KLU3:00 pmKlagenfurt

28h 55m

1 stop

EWR1:55 pmNewark

Oct 8

EWR5:40 pmNewark

14h 20m

1 stop

KLU2:00 pmKlagenfurt

$714

Austrian Airlines

Nov 19

KLU11:40 amKlagenfurt

31h 50m

1 stop

BOS1:30 pmBoston Logan Intl

Nov 22

BOS6:55 pmBoston Logan Intl

10h 00m

1 stop

KLU10:55 amKlagenfurt

$719

Austrian Airlines

Oct 9

KLU3:00 pmKlagenfurt

28h 55m

1 stop

EWR1:55 pmNewark

Oct 23

EWR5:40 pmNewark

14h 20m

1 stop

KLU2:00 pmKlagenfurt

$721

momondo Fare Finder

Use the filters below to find and compare flights from Klagenfurt to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KlagenfurtSan Francisco

KLU Klagenfurt - SFO San Francisco

KLUSFO

Klagenfurt

Mon 9/21

5:50 am-3:20 pm

2 stops18h 30m

San Francisco

Sun 9/27

4:40 pm-2:00 pm

2 stops36h 20m

$678

KlagenfurtSan Francisco

KLU Klagenfurt - SFO San Francisco

KLUSFO

Klagenfurt

Thu 9/24

5:50 am-9:48 pm

2 stops24h 58m

San Francisco

Sun 9/27

8:10 am-1:55 pm

2 stops20h 45m

$687

KlagenfurtSan Francisco

KLU Klagenfurt - SFO San Francisco

KLUSFO

Klagenfurt

Thu 9/24

5:50 am-8:59 pm

2 stops24h 09m

San Francisco

Sun 9/27

8:10 am-1:55 pm

2 stops20h 45m

$692

KlagenfurtSan Francisco

KLU Klagenfurt - SFO San Francisco

KLUSFO

Klagenfurt

Thu 9/24

5:50 am-8:47 pm

2 stops23h 57m

San Francisco

Sun 9/27

4:40 pm-2:00 pm

2 stops36h 20m

$693

KlagenfurtSan Francisco

KLU Klagenfurt - SFO San Francisco

KLUSFO

Klagenfurt

Thu 9/24

5:50 am-3:24 pm

2 stops42h 34m

San Francisco

Sun 9/27

8:30 am-1:55 pm

2 stops20h 25m

$695

KlagenfurtSan Francisco

KLU Klagenfurt - SFO San Francisco

KLUSFO

Klagenfurt

Thu 9/24

5:50 am-3:24 pm

2 stops42h 34m

San Francisco

Sun 9/27

8:30 am-1:55 pm

2 stops20h 25m

$698

KlagenfurtLos Angeles

KLU Klagenfurt - LAX Los Angeles

KLULAX

Klagenfurt

Fri 1/8

11:15 am-9:39 pm

2 stops43h 24m

Los Angeles

Mon 1/25

8:30 am-10:30 am

2 stops17h 00m

$712

KlagenfurtNewark

KLU Klagenfurt - EWR Newark

KLUEWR

Klagenfurt

Wed 9/23

3:00 pm-1:55 pm

1 stop28h 55m

Newark

Thu 10/8

5:40 pm-2:00 pm

1 stop14h 20m

$714

KlagenfurtBoston

KLU Klagenfurt - BOS Boston Logan Intl

KLUBOS

Klagenfurt

Thu 11/19

11:40 am-1:45 pm

2 stops32h 05m

Boston Logan Intl

Sun 11/22

6:55 pm-10:55 am

1 stop10h 00m

$717

Quickest round-trip

KlagenfurtBoston

KLU Klagenfurt - BOS Boston Logan Intl

KLUBOS

Klagenfurt

Thu 11/19

11:40 am-1:30 pm

1 stop31h 50m

Boston Logan Intl

Sun 11/22

6:55 pm-10:55 am

1 stop10h 00m

$719

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first

How to get the cheapest flight ticket from Klagenfurt to United States

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to United States?

In general, February is the cheapest month to fly from Klagenfurt to United States. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $610. If you aren’t able to travel during the month of February, then book flights to United States from Klagenfurt during November instead. Flights to United States in November, while not as cheap as those in February, still average around $718.

Cheap Klagenfurt to United States flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Klagenfurt to United States

Best Price Found	$659
Fastest flight time	14h 05m
Direct flights	None

The best one-way flight to United States from Klagenfurt in the past 72 hours is $659. The best round-trip flight deal from Klagenfurt to United States found on momondo in the last 72 hours is $678.

The fastest flight from Klagenfurt to United States takes 14h 05m

There are no direct flights from Klagenfurt to United States. There are no popular flight routes from Klagenfurt to United States.

Search flight deals

Frequently asked questions about flying from Klagenfurt to the United States

When did momondo last update prices for flights from Klagenfurt Airport to United States?
Prices for flights from Klagenfurt Airport to United States were last updated today.
How old do you have to be to fly from Klagenfurt Airport to United States?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Klagenfurt Airport to United States.
What documentation or ID do you need to fly to United States?
The necessary travel and health documents for your United States trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Klagenfurt to United States?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Klagenfurt to United States. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Klagenfurt to United States with flexible booking policies on momondo?

Yes. All flights to United States from Klagenfurt on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Klagenfurt to United States?

momondo helps you find the best flight between Klagenfurt and United States by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Klagenfurt to United States right now. Can momondo alert me if prices change?

Price alerts on flights to United States from Klagenfurt are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.