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Klagenfurt

$987+ Cheap flights from Boston (BOS) to Klagenfurt (KLU)

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 7/24. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — KLU
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheap flight deals from Boston to Klagenfurt

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Klagenfurt (KLU). 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 junio 12, 2025.

Round-trip from

$987
(Gotogate)
From Boston Logan Intl to Klagenfurt
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Find flight deals from Boston to Klagenfurt

Cheapest flights from Boston to Klagenfurt
Explore the most affordable flight options available from Boston to Klagenfurt. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.

This Gotogate deal was found by Cheapflights users on 6/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/245:10 pmBOS - KLU
1 stop24h 15mAustrian Airlines
mié. 7/305:45 amKLU - BOS
1 stop14h 05mAustrian Airlines
Deal found 6/11$987
This Gotogate deal was found by Cheapflights users on 6/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 7/278:05 pmBOS - KLU
2 stops35h 55mLufthansa
dom. 8/33:00 pmKLU - BOS
2 stops54h 40mLufthansa
Deal found 6/12$1,001
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/2410:25 pmBOS - KLU
2 stops17h 45mMultiple Airlines
mié. 7/304:55 pmKLU - BOS
3 stops32h 55mMultiple Airlines
Deal found 6/11$1,065

Cheapflights Fare Finder

Customize your flight search to find flights from Boston 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, Cheapflights users made 2,558,603 searches. Data last updated junio 12, 2025.
Use the filters below to find and compare flights from Boston to Klagenfurt that are best for you.

Fly from

Boston

Fly to

Klagenfurt

Route

Depart

Return

Price

BostonKlagenfurt

BOS - KLU

BOSKLU

Boston Logan Intl

jue. 7/24

5:10 pm-11:25 pm

1 stop24h 15m

Klagenfurt

mié. 7/30

5:45 am-1:50 pm

1 stop14h 05m

$987

BostonKlagenfurt

BOS - KLU

BOSKLU

Boston Logan Intl

dom. 7/27

8:05 pm-2:00 pm

2 stops35h 55m

Klagenfurt

dom. 8/3

3:00 pm-3:40 pm

2 stops54h 40m

$1,001

BostonKlagenfurt

BOS - KLU

BOSKLU

Boston Logan Intl

jue. 7/24

10:25 pm-10:10 pm

2 stops17h 45m

Klagenfurt

mié. 7/30

4:55 pm-7:50 pm

3 stops32h 55m

$1,065

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Best time to book a flight from Boston to Klagenfurt

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

Rainfall in Klagenfurt by month

Plan your trip to Klagenfurt by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Klagenfurt ranges from 1.6 - 4.3 inches per month. June is typically the wettest month, when rainfall can reach 4.3 in. January is typically the driest time to visit Klagenfurt when rainfall is around 1.6 in.

Temperature in Klagenfurt by month

Plan your trip to Klagenfurt by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Klagenfurt, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

Reviews of airlines servicing Klagenfurt

Get insights into the airlines that provide service to Klagenfurt. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Klagenfurt. Reviews last updated junio 12, 2025.
Austrian Airlines
7.6
Good
802 reviews

Overall

7.6

Food

6.8

Boarding

7.6

Comfort

7.3

Entertainment

6.8

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Grant,Jun 2025

VIE - FRA

A delay was caused by computer malfunctions after we left the gate. It was handled well
Austrian Airlines
7.6
Good
802 reviews
Austrian Airlines
7.6
Good
802 reviews

Overall

7.6

Food

6.8

Boarding

7.6

Comfort

7.3

Entertainment

6.8

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Grant,Jun 2025

VIE - FRA

A delay was caused by computer malfunctions after we left the gate. It was handled well
Lufthansa
6.8
Okay
7,139 reviews
Austrian Airlines
7.6
Good
802 reviews

Overall

7.6

Food

6.8

Boarding

7.6

Comfort

7.3

Entertainment

6.8

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Grant,Jun 2025

VIE - FRA

A delay was caused by computer malfunctions after we left the gate. It was handled well

Related info for your journey

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

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

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

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

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

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

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

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