App
Customer Support
VND
Find Bookings
Worldwide Coverage
Worldwide Coverage
Flights to over 5,000 cities
One-stop Service Guarantee
One-stop Service Guarantee
Price guaranteed upon confirmed payment, booking guaranteed once tickets issued
Secure Payment
Secure Payment
Convenient & reliable booking and payment system

Cheap flight deals from Boston to Klagenfurt Starting at VND 24,089,175

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • Round-trip
      • BOS07:25 pm
        21h 55m
        2 stops
        KLU11:20 pm
        Wed, Feb 26|Boston - Klagenfurt|Delta Air Lines
        KLU05:45 am
        17h 45m
        2 stops
        BOS05:30 pm
        Wed, Mar 5|Klagenfurt - Boston|Austrian Airlines
        VND 24,089,175VND 33,824,844
        28% OFF
        28% OFF
        VND 33,824,844VND 24,089,175

        Choose Delta Air Lines flights from Boston to Klagenfurt. The one-way connecting flight with Delta Air Lines departs from General Edward Lawrence Logan International Airport on Wed, Feb 26-Wed, Mar 5, arriving at Klagenfurt Airport. One-way Prices start from VND 24,089,175 including taxes and charges.

      • BOS08:10 pm
        21h 10m
        2 stops
        KLU11:20 pm
        Wed, Feb 26|Boston - Klagenfurt|Virgin Atlantic
        KLU05:45 am
        17h 45m
        2 stops
        BOS05:30 pm
        Wed, Mar 5|Klagenfurt - Boston|Austrian Airlines
        VND 25,762,083VND 33,824,844
        24% OFF
        24% OFF
        VND 33,824,844VND 25,762,083

        Choose Virgin Atlantic flights from Boston to Klagenfurt. The one-way connecting flight with Virgin Atlantic departs from General Edward Lawrence Logan International Airport on Wed, Feb 26-Wed, Mar 5, arriving at Klagenfurt Airport. One-way Prices start from VND 25,762,083 including taxes and charges.

      • BOS07:30 am
        33h 50m
        2 stops
        KLU11:20 pm
        Wed, Feb 19|Boston - Klagenfurt|British Airways
        KLU03:15 pm
        28h 45m
        2 stops
        BOS02:00 pm
        Tue, Feb 25|Klagenfurt - Boston|Austrian Airlines
        VND 26,717,531VND 33,824,844
        21% OFF
        21% OFF
        VND 33,824,844VND 26,717,531

        Choose British Airways flights from Boston to Klagenfurt. The one-way connecting flight with British Airways departs from General Edward Lawrence Logan International Airport on Wed, Feb 19-Tue, Feb 25, arriving at Klagenfurt Airport. One-way Prices start from VND 26,717,531 including taxes and charges.

      • BOS07:30 am
        33h 50m
        2 stops
        KLU11:20 pm
        Wed, Feb 26|Boston - Klagenfurt|British Airways
        KLU05:45 am
        19h 50m
        2 stops
        BOS07:35 pm
        Wed, Mar 5|Klagenfurt - Boston|Austrian Airlines
        VND 26,770,028
        VND 26,770,028

        Choose British Airways flights from Boston to Klagenfurt. The one-way connecting flight with British Airways departs from General Edward Lawrence Logan International Airport on Wed, Feb 26-Wed, Mar 5, arriving at Klagenfurt Airport. One-way Prices start from VND 26,770,028 including taxes and charges.

      • BOS12:05 pm
        16h 25m
        2 stops
        KLU10:30 am
        Fri, Mar 7|Boston - Klagenfurt|United Airlines
        KLU02:50 pm
        29h 20m
        1 stop
        BOS03:10 pm
        Thu, Mar 13|Klagenfurt - Boston|Austrian Airlines
        VND 28,729,920
        VND 28,729,920

        Choose United Airlines flights from Boston to Klagenfurt. The one-way connecting flight with United Airlines departs from General Edward Lawrence Logan International Airport on Fri, Mar 7-Thu, Mar 13, arriving at Klagenfurt Airport. One-way Prices start from VND 28,729,920 including taxes and charges.

      • BOS09:25 am
        22h 35m
        2 stops
        KLU02:00 pm
        Tue, Feb 25|Boston - Klagenfurt|United Airlines
        KLU02:50 pm
        32h 38m
        2 stops
        BOS05:28 pm
        Mon, Mar 3|Klagenfurt - Boston|Austrian Airlines
        VND 29,331,887
        VND 29,331,887

        Choose United Airlines flights from Boston to Klagenfurt. The one-way connecting flight with United Airlines departs from General Edward Lawrence Logan International Airport on Tue, Feb 25-Mon, Mar 3, arriving at Klagenfurt Airport. One-way Prices start from VND 29,331,887 including taxes and charges.

      • BOS06:25 pm
        13h 35m
        1 stop
        KLU02:00 pm
        Wed, Feb 19|Boston - Klagenfurt|United Airlines
        KLU03:15 pm
        28h 55m
        1 stop
        BOS02:10 pm
        Tue, Feb 25|Klagenfurt - Boston|Austrian Airlines
        VND 29,513,877
        VND 29,513,877

        Choose United Airlines flights from Boston to Klagenfurt. The one-way connecting flight with United Airlines departs from General Edward Lawrence Logan International Airport on Wed, Feb 19-Tue, Feb 25, arriving at Klagenfurt Airport. One-way Prices start from VND 29,513,877 including taxes and charges.

      • BOS02:00 pm
        18h
        2 stops
        KLU02:00 pm
        Tue, Feb 25|Boston - Klagenfurt|Austrian Airlines
        KLU02:50 pm
        32h 38m
        2 stops
        BOS05:28 pm
        Mon, Mar 3|Klagenfurt - Boston|Austrian Airlines
        VND 29,555,874
        VND 29,555,874

        Choose Austrian Airlines flights from Boston to Klagenfurt. The one-way connecting flight with Austrian Airlines departs from General Edward Lawrence Logan International Airport on Tue, Feb 25-Mon, Mar 3, arriving at Klagenfurt Airport. One-way Prices start from VND 29,555,874 including taxes and charges.

      • BOS10:30 am
        21h 30m
        2 stops
        KLU02:00 pm
        Sat, Mar 8|Boston - Klagenfurt|United Airlines
        KLU04:00 pm
        28h 10m
        1 stop
        BOS03:10 pm
        Sat, Mar 15|Klagenfurt - Boston|Austrian Airlines
        VND 29,573,373
        VND 29,573,373

        Choose United Airlines flights from Boston to Klagenfurt. The one-way connecting flight with United Airlines departs from General Edward Lawrence Logan International Airport on Sat, Mar 8-Sat, Mar 15, arriving at Klagenfurt Airport. One-way Prices start from VND 29,573,373 including taxes and charges.

      • BOS06:25 pm
        10h 5m
        1 stop
        KLU10:30 am
        Fri, Mar 7|Boston - Klagenfurt|Austrian Airlines
        KLU02:50 pm
        29h 20m
        1 stop
        BOS03:10 pm
        Thu, Mar 13|Klagenfurt - Boston|Austrian Airlines
        VND 29,643,370
        VND 29,643,370

        Choose Austrian Airlines flights from Boston to Klagenfurt. The one-way connecting flight with Austrian Airlines departs from General Edward Lawrence Logan International Airport on Fri, Mar 7-Thu, Mar 13, arriving at Klagenfurt Airport. One-way Prices start from VND 29,643,370 including taxes and charges.

      • BOS01:00 pm
        3h 5m
        Nonstop
        KLU02:00 pm
        Sun, Feb 23|Boston - Klagenfurt|Delta Air Lines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Boston to Klagenfurt Flight Time

Flight info.
Departure
Arrival
Weekly Schedule

  1. UA2454

    United Airlines

    02:00 pm

    BOS

    1.5h

    03:29 pm

    EWR

    SMTWTFS
    Search

  2. UA9841

    United Airlines

    05:40 pm

    EWR

    8.2h

    07:50 am

    VIE

    SMTWTFS

  3. OS937

    Austrian Airlines

    09:45 am

    VIE

    0.8h

    10:30 am

    KLU

    -----F-

  4. OS092

    Austrian Airlines

    05:10 pm

    BOS

    8.0h

    07:10 am

    VIE

    --T-T-S
    Search

  5. OS939

    Austrian Airlines

    01:05 pm

    VIE

    0.9h

    02:00 pm

    KLU

    SMTWT-S

  6. OS092

    Austrian Airlines

    05:10 pm

    BOS

    8.0h

    07:10 am

    VIE

    --T-T-S
    Search

  7. OS937

    Austrian Airlines

    09:45 am

    VIE

    0.8h

    10:30 am

    KLU

    -----F-

  8. LH423

    Lufthansa

    05:50 pm

    BOS

    7.1h

    06:55 am

    FRA

    SMTWTFS
    Search

  9. LH6368

    Lufthansa

    06:40 am

    FRA

    1.4h

    08:05 am

    VIE

    SMTWTFS

  10. LH6405

    Lufthansa

    01:05 pm

    VIE

    0.9h

    02:00 pm

    KLU

    SMTWT-S

  11. LH423

    Lufthansa

    05:50 pm

    BOS

    7.1h

    06:55 am

    FRA

    SMTWTFS
    Search

  12. LH6368

    Lufthansa

    06:40 am

    FRA

    1.4h

    08:05 am

    VIE

    SMTWTFS

  13. LH6342

    Lufthansa

    09:45 am

    VIE

    0.8h

    10:30 am

    KLU

    -----F-

  14. UA9855

    United Airlines

    07:00 pm

    BOS

    7.5h

    07:30 am

    VIE

    --T-T-S
    Search

  15. OS939

    Austrian Airlines

    01:05 pm

    VIE

    0.9h

    02:00 pm

    KLU

    SMTWT-S

  16. UA8903

    United Airlines

    08:05 pm

    BOS

    7.4h

    09:30 am

    MUC

    SMTWTFS
    Search

  17. OS7234

    Austrian Airlines

    11:15 am

    MUC

    1.0h

    12:15 pm

    VIE

    SMTWTFS

  18. OS939

    Austrian Airlines

    01:05 pm

    VIE

    0.9h

    02:00 pm

    KLU

    SMTWT-S

  19. UA8903

    United Airlines

    08:05 pm

    BOS

    7.4h

    09:30 am

    MUC

    SMTWTFS
    Search

  20. LH2326

    Lufthansa

    11:15 am

    MUC

    1.0h

    12:15 pm

    VIE

    SMTWTFS

  21. LH6405

    Lufthansa

    01:05 pm

    VIE

    0.9h

    02:00 pm

    KLU

    SMTWT-S

  22. LH425

    Lufthansa

    08:05 pm

    BOS

    7.4h

    09:30 am

    MUC

    SMTWTFS
    Search

  23. LH2326

    Lufthansa

    11:15 am

    MUC

    1.0h

    12:15 pm

    VIE

    SMTWTFS

  24. LH6405

    Lufthansa

    01:05 pm

    VIE

    0.9h

    02:00 pm

    KLU

    SMTWT-S

  25. OS7888

    Austrian Airlines

    12:30 pm

    BOS

    1.7h

    02:11 pm

    IAD

    -M-WTFS
    Search

  26. OS094

    Austrian Airlines

    05:25 pm

    IAD

    8.9h

    08:20 am

    VIE

    -M-WTFS

  27. OS937

    Austrian Airlines

    09:45 am

    VIE

    0.8h

    10:30 am

    KLU

    -----F-
Find more flights and airlines

When is the cheapest time to fly from Boston to Klagenfurt?

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from Boston (BOS) to Klagenfurt (KLU) the cheapest?

    Airlines adjust prices for flights from Boston to Klagenfurt based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Boston (BOS) to Klagenfurt (KLU) cost?

    According to Trip.com's data, the lowest price is around VND 40,846,253.

  • What is the transportation method from the main airport to downtown in Klagenfurt?

    • The distance from Klagenfurt Airport to downtown is about 2 km. It takes about 20 minutes by taxi.

How to find a cheap flight from Boston to Klagenfurt

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Boston to Klagenfurt. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Info | Boston to Klagenfurt

Off-season for travelFebruary
Peak season for travelJanuary
Flight distance6,439.72 km
Popular airlineJetblue Airways

Contact Us

About

Other Services

Payment Methods
Our Partners
Copyright © 2025 Trip.com Travel Singapore Pte. Ltd. All rights reserved
Site Operator: Trip.com Travel Singapore Pte. Ltd.