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Cheap flights from the United States to Klagenfurt from $580

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Klagenfurt departing on 2/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from the United States to Klagenfurt

Recent round-trip flight deals from the United States to Klagenfurt

Enter your travel dates to find the best prices.
Air Canada Logo
1:00 pm - 2:00 pm
BOS
-
KLU
19h 00m
2 stops
Air Canada Logo
5:45 am - 5:57 pm
KLU
-
BOS
18h 12m
2 stops
$1,121Air Canada
Fri, Apr 3 - Tue, Apr 7
Multiple Airlines Logo
7:15 am - 1:50 pm
ORD
-
KLU
24h 35m
2 stops
Multiple Airlines Logo
11:10 am - 3:00 pm
KLU
-
ORD
33h 50m
1 stop
$1,142Multiple Airlines
Thu, Mar 19 - Thu, Mar 26
Multiple Airlines Logo
7:15 am - 1:50 pm
ORD
-
KLU
24h 35m
2 stops
Multiple Airlines Logo
11:10 am - 9:05 pm
KLU
-
ORD
15h 55m
2 stops
$1,152Multiple Airlines
Thu, Mar 19 - Thu, Mar 26
Multiple Airlines Logo
8:20 pm - 1:50 pm
ORD
-
KLU
35h 30m
3 stops
Multiple Airlines Logo
11:10 am - 4:00 pm
KLU
-
ORD
34h 50m
2 stops
$1,292Multiple Airlines
Thu, Mar 19 - Thu, Mar 26
Multiple Airlines Logo
8:20 pm - 1:50 pm
ORD
-
KLU
35h 30m
3 stops
Multiple Airlines Logo
11:10 am - 4:00 pm
KLU
-
ORD
34h 50m
3 stops
$1,382Multiple Airlines
Thu, Mar 19 - Thu, Mar 26
Austrian Airlines Logo
7:35 am - 1:50 pm
LAX
-
KLU
22h 15m
2 stops
Austrian Airlines Logo
5:45 am - 9:20 pm
KLU
-
LAX
24h 35m
2 stops
$1,414Austrian Airlines
Thu, Mar 26 - Sat, Apr 4
Air Canada Logo
7:35 am - 1:50 pm
LAX
-
KLU
22h 15m
2 stops
Air Canada Logo
5:45 am - 9:29 pm
KLU
-
LAX
24h 44m
3 stops
$1,446Air Canada
Thu, Mar 26 - Sat, Apr 4
Lufthansa Logo
4:00 pm - 1:50 pm
LAX
-
KLU
37h 50m
2 stops
Lufthansa Logo
3:00 pm - 3:15 pm
KLU
-
LAX
57h 15m
2 stops
$1,451Lufthansa
Thu, Mar 26 - Sun, Apr 5
Lufthansa Logo
3:35 pm - 2:00 pm
ORD
-
KLU
15h 25m
2 stops
Lufthansa Logo
5:45 am - 12:55 pm
KLU
-
ORD
14h 10m
2 stops
$1,827Lufthansa
Thu, Jun 11 - Fri, Jun 19
Austrian Airlines Logo
4:20 pm - 2:00 pm
ORD
-
KLU
14h 40m
1 stop
Austrian Airlines Logo
5:45 am - 1:20 pm
KLU
-
ORD
14h 35m
1 stop
$1,851Austrian Airlines
Thu, Jun 11 - Fri, Jun 19

Austrian Airlines flights from United States to Klagenfurt

Our best Austrian Airlines deals on United States to Klagenfurt flight tickets
Austrian Airlines
Mar 26
LAX7:35 amLos Angeles
22h 15m
2 stops
KLU1:50 pmKlagenfurt
Apr 4
KLU5:45 amKlagenfurt
24h 35m
2 stops
LAX9:20 pmLos Angeles
$1,414
Austrian Airlines
Jun 11
ORD4:20 pmChicago O'Hare Intl
14h 40m
1 stop
KLU2:00 pmKlagenfurt
Jun 19
KLU5:45 amKlagenfurt
14h 35m
1 stop
ORD1:20 pmChicago O'Hare Intl
$1,851

Lufthansa flights from United States to Klagenfurt

Our best Lufthansa deals on United States to Klagenfurt flight tickets
Lufthansa
Mar 26
LAX4:00 pmLos Angeles
37h 50m
2 stops
KLU1:50 pmKlagenfurt
Apr 5
KLU3:00 pmKlagenfurt
57h 15m
2 stops
LAX3:15 pmLos Angeles
$1,451
Lufthansa
Jun 11
ORD3:35 pmChicago O'Hare Intl
15h 25m
2 stops
KLU2:00 pmKlagenfurt
Jun 19
KLU5:45 amKlagenfurt
14h 10m
2 stops
ORD12:55 pmChicago O'Hare Intl
$1,827

momondo Fare Finder

 
Customize your flight search to find flights from United States 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, momondo users made 832,500 searches. Data last updated February 3, 2026.
Use the filters below to find and compare flights from the United States to Klagenfurt that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonKlagenfurt

BOS - KLU

BOSKLU

Boston Logan Intl

Fri 4/3

1:00 pm-2:00 pm

2 stops19h 00m

Klagenfurt

Tue 4/7

5:45 am-5:57 pm

2 stops18h 12m

$1,121

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Thu 3/19

7:15 am-1:50 pm

2 stops24h 35m

Klagenfurt

Thu 3/26

11:10 am-3:00 pm

1 stop33h 50m

$1,142

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Thu 3/19

7:15 am-1:50 pm

2 stops24h 35m

Klagenfurt

Thu 3/26

11:10 am-9:05 pm

2 stops15h 55m

$1,152

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Thu 3/19

8:20 pm-1:50 pm

3 stops35h 30m

Klagenfurt

Thu 3/26

11:10 am-4:00 pm

2 stops34h 50m

$1,292

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Thu 3/19

8:20 pm-1:50 pm

3 stops35h 30m

Klagenfurt

Thu 3/26

11:10 am-4:00 pm

3 stops34h 50m

$1,382

Los AngelesKlagenfurt

LAX - KLU

LAXKLU

Los Angeles

Thu 3/26

7:35 am-1:50 pm

2 stops22h 15m

Klagenfurt

Sat 4/4

5:45 am-9:20 pm

2 stops24h 35m

$1,414

Los AngelesKlagenfurt

LAX - KLU

LAXKLU

Los Angeles

Thu 3/26

7:35 am-1:50 pm

2 stops22h 15m

Klagenfurt

Sat 4/4

5:45 am-9:29 pm

3 stops24h 44m

$1,446

Los AngelesKlagenfurt

LAX - KLU

LAXKLU

Los Angeles

Thu 3/26

4:00 pm-1:50 pm

2 stops37h 50m

Klagenfurt

Sun 4/5

3:00 pm-3:15 pm

2 stops57h 15m

$1,451

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Thu 6/11

3:35 pm-2:00 pm

2 stops15h 25m

Klagenfurt

Fri 6/19

5:45 am-12:55 pm

2 stops14h 10m

$1,827

ChicagoKlagenfurt

ORD - KLU

ORDKLU

Chicago O'Hare Intl

Thu 6/11

4:20 pm-2:00 pm

1 stop14h 40m

Klagenfurt

Fri 6/19

5:45 am-1:20 pm

1 stop14h 35m

$1,851

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Klagenfurt from

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

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

Can stopping save me money on United States to Klagenfurt flights?

You could potentially save up to 42% on your flight if you consider stops on a United States to Klagenfurt flight.

Cheap United States to Klagenfurt flight deals and tips

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

Fastest flight time

10h 15m

Direct flights

None
The fastest flight from United States to Klagenfurt takes 10h 15m
There are no direct flights from United States to Klagenfurt. There are no popular flight routes from United States to Klagenfurt.
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  • When did momondo last update prices for flights from United States to Klagenfurt Airport?

    Prices for flights from United States to Klagenfurt Airport are refreshed on a daily basis.

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

    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 United States to Klagenfurt Airport.

  • What documentation or ID do you need to fly to Klagenfurt Airport?

    The necessary travel and health documents for your Klagenfurt Airport 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.

Traveling to a place near Klagenfurt?

Book flights to Klagenfurt if you plan to visit one of these locations
Bad Kleinkirchheim

Why use momondo?

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

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

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

Yes. momondo enables you to select and highlight flights to Klagenfurt from United States with this policy.

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

Once all potential United States to Klagenfurt flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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Yes. momondo can track prices for United States to Klagenfurt flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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