$388 Cheap KLM flights Boston (BOS) to Billund (BLL)

View $388 flight on Mon, Aug 18, 2025Opens in a new window

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$388 Cheap KLM flights Boston (BOS) to Billund (BLL)

Prices were available within the past 7 days and start at $388 for one-way flights and $579 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

KLM
Fri, Sep 5 - Tue, Sep 9
BOS
Boston
BLL
Billund
$579 Roundtrip, found 1 day ago
$579
Roundtrip
found 1 day ago
Select KLM flight, departing Fri, Sep 5 from Boston to Billund, returning Tue, Sep 9, priced at $579 found 1 day ago
Flights from Boston (BOS) to Billund (BLL)
Origin airport
Logan Intl.
Destination airport
Billund
Airlines serving
Air Canada, Air France, British Airways, Delta, Icelandair, KLM, LOT-Polish Airlines, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, Turkish Airlines
Popular airline
Lufthansa
Distance
3530 mi

Frequently asked questions

How much is a KLM flight from Logan Intl. Airport (BOS) to Billund Airport (BLL)?
Finding cheap one-way KLM flights from BOS to BLL from $388 on Expedia couldn't be easier --- just filter by "Price (lowest to highest)." Or check out our budget-friendly return fares from $579 for your next exciting getaway.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from BOS to BLL with KLM?
KLM flights to Billund tend to be more affordable in the low-season months of January and February. Whether you need a round-trip or one-way ticket, you could find a better deal then.
What is the cheapest time to book flights from Logan Intl. Airport (BOS) to Billund Airport (BLL) with KLM?
Check for KLM flights from BOS to BLL about one month before you want to leave. The most affordable time to reserve an international flight is usually 18 to 29 days ahead of your departure date when you can save 17% versus booking four to five months in advance. No matter your itinerary or fare class, the best day of the week to book international airfare is usually Sunday. Friday is often the most expensive. Travelers who book on a Sunday can save 17% on average compared to those who book on a Friday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does KLM fly nonstop from Logan Intl. Airport (BOS) to Billund Airport (BLL)?
Simply enter your dates, click search and use the "Nonstop" filter on Expedia to find any direct flights from BOS to BLL with KLM or another airline.
What is the earliest KLM flight from BOS to BLL?
Find KLM's earliest flights from BOS to BLL by selecting the "Early Morning" and "Morning" filters. Not only will you arrive at your destination sooner, early departures are also 20% less likely to be canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does KLM fly into in Billund?
Billund Airport (BLL) is the main Billund gateway for KLM flights from Logan Intl. Airport (BOS).
Why fly with KLM from BOS to BLL?
A 4-star airline rating and the opportunity to collect points through KLM Flying Blue are the start of the reasons to depart from BOS to BLL with KLM. Plus, when you sign up to our One Key™ program, you can earn OneKeyCash™* on top of KLM's loyalty program earnings. It's yours to spend on future travel plans.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my KLM flight from Logan Intl. Airport (BOS) to Billund Airport (BLL)?
Typically, you can cancel or change your flight, although additional charges may apply if you booked more than 24 hours ago. Need flexible options? Use Expedia's "Changes included" or "No cancel fee" filter to find flights that won't charge extra if you need to alter your plans. To modify your booking, head to "Trips," select your flight and click on "Manage Booking" for more details.

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*Available to One Key members.