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Cheap flights from Massachusetts to Klagenfurt from $474

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Massachusetts to Klagenfurt departing on 6/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Massachusetts to Klagenfurt

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:35 am - 2:00 pm
BOS
-
KLU
21h 25m
2 stops
Multiple Airlines Logo
11:10 am - 6:07 pm
KLU
-
BOS
36h 57m
2 stops
$1,043Multiple Airlines
Mon, May 4 - Mon, May 11
Multiple Airlines Logo
6:50 pm - 2:00 pm
BOS
-
KLU
37h 10m
3 stops
Multiple Airlines Logo
5:50 am - 9:45 am
KLU
-
BOS
33h 55m
3 stops
$1,097Multiple Airlines
Mon, May 4 - Mon, May 11
Air Canada Logo
10:35 am - 2:00 pm
BOS
-
KLU
21h 25m
3 stops
Air Canada Logo
5:50 am - 6:07 pm
KLU
-
BOS
18h 17m
2 stops
$1,099Air Canada
Mon, May 4 - Mon, May 11
Multiple Airlines Logo
10:35 am - 2:00 pm
BOS
-
KLU
21h 25m
2 stops
Multiple Airlines Logo
5:50 am - 1:50 pm
KLU
-
BOS
14h 00m
1 stop
$1,119Multiple Airlines
Mon, May 4 - Mon, May 11
Multiple Airlines Logo
10:40 am - 1:25 pm
BOS
-
KLU
20h 45m
2 stops
Multiple Airlines Logo
6:40 pm - 6:07 pm
KLU
-
BOS
29h 27m
2 stops
$1,662Multiple Airlines
Thu, Aug 27 - Mon, Aug 31
Multiple Airlines Logo
5:10 pm - 1:25 pm
BOS
-
KLU
14h 15m
1 stop
Multiple Airlines Logo
6:40 pm - 2:41 pm
KLU
-
BOS
50h 01m
2 stops
$1,708Multiple Airlines
Thu, Aug 27 - Mon, Aug 31
Multiple Airlines Logo
5:45 am - 1:25 pm
BOS
-
KLU
25h 40m
2 stops
Multiple Airlines Logo
12:00 pm - 2:45 pm
KLU
-
BOS
32h 45m
3 stops
$2,041Multiple Airlines
Thu, Aug 27 - Mon, Aug 31

momondo Fare Finder

 
Customize your flight search to find flights from Massachusetts 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 March 24, 2026.
Use the filters below to find and compare flights from Massachusetts to Klagenfurt that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonKlagenfurt

BOS - KLU

BOSKLU

Boston Logan Intl

Mon 5/4

10:35 am-2:00 pm

2 stops21h 25m

Klagenfurt

Mon 5/11

11:10 am-6:07 pm

2 stops36h 57m

$1,043

BostonKlagenfurt

BOS - KLU

BOSKLU

Boston Logan Intl

Mon 5/4

6:50 pm-2:00 pm

3 stops37h 10m

Klagenfurt

Mon 5/11

5:50 am-9:45 am

3 stops33h 55m

$1,097

BostonKlagenfurt

BOS - KLU

BOSKLU

Boston Logan Intl

Mon 5/4

10:35 am-2:00 pm

3 stops21h 25m

Klagenfurt

Mon 5/11

5:50 am-6:07 pm

2 stops18h 17m

$1,099
Quickest round-trip

BostonKlagenfurt

BOS - KLU

BOSKLU

Boston Logan Intl

Mon 5/4

10:35 am-2:00 pm

2 stops21h 25m

Klagenfurt

Mon 5/11

5:50 am-1:50 pm

1 stop14h 00m

$1,119

BostonKlagenfurt

BOS - KLU

BOSKLU

Boston Logan Intl

Thu 8/27

10:40 am-1:25 pm

2 stops20h 45m

Klagenfurt

Mon 8/31

6:40 pm-6:07 pm

2 stops29h 27m

$1,662

BostonKlagenfurt

BOS - KLU

BOSKLU

Boston Logan Intl

Thu 8/27

5:10 pm-1:25 pm

1 stop14h 15m

Klagenfurt

Mon 8/31

6:40 pm-2:41 pm

2 stops50h 01m

$1,708

BostonKlagenfurt

BOS - KLU

BOSKLU

Boston Logan Intl

Thu 8/27

5:45 am-1:25 pm

2 stops25h 40m

Klagenfurt

Mon 8/31

12:00 pm-2:45 pm

3 stops32h 45m

$2,041
Cheapest one-way

BostonKlagenfurt

BOS - KLU

BOSKLU

Boston Logan Intl

Sun 6/28

7:10 am-2:40 pm

3 stops49h 30m

$474

BostonKlagenfurt

BOS - KLU

BOSKLU

Boston Logan Intl

Sun 6/28

11:45 pm-2:40 pm

2 stops32h 55m

$539

BostonKlagenfurt

BOS - KLU

BOSKLU

Boston Logan Intl

Wed 9/9

3:35 pm-2:00 pm

2 stops16h 25m

$889

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Klagenfurt from

How to get the cheapest flight ticket from Massachusetts 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

What is the cheapest airline that flies from Massachusetts to Klagenfurt?

Air Canada is the most popular carrier operating from Massachusetts to Klagenfurt

Cheap Massachusetts to Klagenfurt flight deals and tips

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

Fastest flight time

20h 45m

Direct flights

None
The fastest flight from Massachusetts to Klagenfurt takes 20h 45m
There are no direct flights from Massachusetts to Klagenfurt. There are no popular flight routes from Massachusetts to Klagenfurt.
Search flight deals

  • When did momondo last update prices for flights from Massachusetts to Klagenfurt Airport?

    Prices for flights from Massachusetts to Klagenfurt Airport refresh daily.

  • How old do you have to be to fly from Massachusetts 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 Massachusetts to Klagenfurt Airport.

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

    The travel and health documents required for your trip to Klagenfurt Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Klagenfurt Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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 Massachusetts to Klagenfurt?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Massachusetts to Klagenfurt for you.

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

All flight searches from Massachusetts to Klagenfurt on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Massachusetts to Klagenfurt?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Klagenfurt from Massachusetts.

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

If you are simply researching potential flights to Klagenfurt, momondo offers a useful price alert feature which will track prices for flights to Klagenfurt from Massachusetts and alert you when they change.

An easier way to manage your Klagenfurt trip

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