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Cheap flights from the United States to Klagenfurt from $314

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 12/4. 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.
Multiple Airlines Logo
8:10 am - 1:55 pmSEA-KLU
20h 45m2 stops
Multiple Airlines Logo
5:45 am - 10:16 pmKLU-SEA
25h 31m2 stops
$707Multiple Airlines
Find Deal
Sat, Dec 6 - Sat, Dec 13
Multiple Airlines Logo
8:10 am - 1:55 pmSEA-KLU
20h 45m2 stops
Multiple Airlines Logo
5:45 am - 7:16 pmKLU-SEA
22h 31m3 stops
$716Multiple Airlines
Find Deal
Sat, Dec 6 - Sat, Dec 13
Air Canada Logo
5:50 am - 1:55 pmSEA-KLU
23h 05m3 stops
Air Canada Logo
5:45 am - 10:06 pmKLU-SEA
25h 21m3 stops
$719Air Canada
Find Deal
Sat, Dec 6 - Sat, Dec 13
Multiple Airlines Logo
8:50 am - 2:00 pmSFO-KLU
20h 10m2 stops
Multiple Airlines Logo
5:45 am - 9:21 pmKLU-SFO
24h 36m2 stops
$762Multiple Airlines
Find Deal
Wed, Apr 8 - Wed, Apr 15
Multiple Airlines Logo
8:35 am - 2:00 pmSFO-KLU
20h 25m2 stops
Multiple Airlines Logo
5:45 am - 8:27 pmKLU-SFO
23h 42m3 stops
$774Multiple Airlines
Find Deal
Wed, Apr 8 - Wed, Apr 15
Austrian Airlines Logo
12:26 pm - 1:55 pmMIA-KLU
19h 29m2 stops
Austrian Airlines Logo
2:50 pm - 7:13 pmKLU-MIA
34h 23m2 stops
$820Austrian Airlines
Find Deal
Thu, Nov 13 - Mon, Nov 17
Lufthansa Logo
6:45 pm - 11:25 pmMIA-KLU
22h 40m2 stops
Lufthansa Logo
2:50 pm - 2:40 pmKLU-MIA
29h 50m2 stops
$823Lufthansa
Find Deal
Thu, Nov 13 - Mon, Nov 17
Lufthansa Logo
4:10 pm - 1:55 pmSEA-KLU
13h 45m2 stops
Lufthansa Logo
5:45 am - 11:55 amKLU-SEA
39h 10m2 stops
$825Lufthansa
Find Deal
Fri, Mar 27 - Tue, Mar 31
Austrian Airlines Logo
8:25 am - 1:55 pmSFO-KLU
20h 30m2 stops
Austrian Airlines Logo
5:45 am - 9:34 pmKLU-SFO
24h 49m2 stops
$867Austrian Airlines
Find Deal
Fri, Nov 14 - Tue, Nov 18
Air Canada Logo
6:15 am - 1:55 pmBOS-KLU
26h 40m2 stops
Air Canada Logo
5:45 am - 9:52 amKLU-BOS
34h 07m2 stops
$882Air Canada
Find Deal
Fri, Mar 27 - Tue, Mar 31

Air Canada flights from United States to Klagenfurt

Our best Air Canada deals on United States to Klagenfurt flight tickets
Air Canada
Dec 6
SEA5:50 amSeattle/Tacoma Intl
23h 05m
3 stops
KLU1:55 pmKlagenfurt
Dec 13
KLU5:45 amKlagenfurt
25h 21m
3 stops
SEA10:06 pmSeattle/Tacoma Intl
$719
Find similar
Air Canada
Mar 27
BOS6:15 amBoston Logan Intl
26h 40m
2 stops
KLU1:55 pmKlagenfurt
Mar 31
KLU5:45 amKlagenfurt
34h 07m
2 stops
BOS9:52 amBoston Logan Intl
$882
Find similar
Air Canada
Mar 27
BOS6:15 amBoston Logan Intl
26h 40m
2 stops
KLU1:55 pmKlagenfurt
Mar 31
KLU5:45 amKlagenfurt
21h 42m
2 stops
BOS9:27 pmBoston Logan Intl
$902
Find similar

Austrian Airlines flights from United States to Klagenfurt

Our best Austrian Airlines deals on United States to Klagenfurt flight tickets
Austrian Airlines
Nov 13
MIA12:26 pmMiami
19h 29m
2 stops
KLU1:55 pmKlagenfurt
Nov 17
KLU2:50 pmKlagenfurt
34h 23m
2 stops
MIA7:13 pmMiami
$820
Find similar
Austrian Airlines
Nov 14
SFO8:25 amSan Francisco
20h 30m
2 stops
KLU1:55 pmKlagenfurt
Nov 18
KLU5:45 amKlagenfurt
24h 49m
2 stops
SFO9:34 pmSan Francisco
$867
Find similar
Austrian Airlines
Mar 27
BOS7:25 pmBoston Logan Intl
13h 30m
1 stop
KLU1:55 pmKlagenfurt
Mar 31
KLU3:00 pmKlagenfurt
28h 50m
1 stop
BOS1:50 pmBoston Logan Intl
$916
Find similar

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 October 23, 2025.
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

SeattleKlagenfurt

SEA - KLU

SEAKLU

Seattle/Tacoma Intl

Sat 12/6

8:10 am-1:55 pm

2 stops20h 45m

Klagenfurt

Sat 12/13

5:45 am-10:16 pm

2 stops25h 31m

$707

SeattleKlagenfurt

SEA - KLU

SEAKLU

Seattle/Tacoma Intl

Sat 12/6

8:10 am-1:55 pm

2 stops20h 45m

Klagenfurt

Sat 12/13

5:45 am-7:16 pm

3 stops22h 31m

$716

SeattleKlagenfurt

SEA - KLU

SEAKLU

Seattle/Tacoma Intl

Sat 12/6

5:50 am-1:55 pm

3 stops23h 05m

Klagenfurt

Sat 12/13

5:45 am-10:06 pm

3 stops25h 21m

$719

San FranciscoKlagenfurt

SFO - KLU

SFOKLU

San Francisco

Wed 4/8

8:50 am-2:00 pm

2 stops20h 10m

Klagenfurt

Wed 4/15

5:45 am-9:21 pm

2 stops24h 36m

$762

San FranciscoKlagenfurt

SFO - KLU

SFOKLU

San Francisco

Wed 4/8

8:35 am-2:00 pm

2 stops20h 25m

Klagenfurt

Wed 4/15

5:45 am-8:27 pm

3 stops23h 42m

$774

MiamiKlagenfurt

MIA - KLU

MIAKLU

Miami

Thu 11/13

12:26 pm-1:55 pm

2 stops19h 29m

Klagenfurt

Mon 11/17

2:50 pm-7:13 pm

2 stops34h 23m

$820

MiamiKlagenfurt

MIA - KLU

MIAKLU

Miami

Thu 11/13

6:45 pm-11:25 pm

2 stops22h 40m

Klagenfurt

Mon 11/17

2:50 pm-2:40 pm

2 stops29h 50m

$823

SeattleKlagenfurt

SEA - KLU

SEAKLU

Seattle/Tacoma Intl

Fri 3/27

4:10 pm-1:55 pm

2 stops13h 45m

Klagenfurt

Tue 3/31

5:45 am-11:55 am

2 stops39h 10m

$825

San FranciscoKlagenfurt

SFO - KLU

SFOKLU

San Francisco

Fri 11/14

8:25 am-1:55 pm

2 stops20h 30m

Klagenfurt

Tue 11/18

5:45 am-9:34 pm

2 stops24h 49m

$867

BostonKlagenfurt

BOS - KLU

BOSKLU

Boston Logan Intl

Fri 3/27

6:15 am-1:55 pm

2 stops26h 40m

Klagenfurt

Tue 3/31

5:45 am-9:52 am

2 stops34h 07m

$882

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

Direct flights

None
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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