$455 Cheap Flights from San Juan (SJU) to Billund (BLL)

View $455 flight on Mon, Mar 16, 2026Opens in a new window

Popular airlines from Luis Munoz Marin Intl. Airport (SJU) to Billund (BLL)

Cheap Flights from San Juan to Billund (SJU-BLL)

Prices were available within the past 7 days and start at $455 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from San Juan (SJU) to Billund (BLL)
Origin airport
Luis Munoz Marin Intl.
Destination airport
Billund
Distance
4596 mi

San Juan to Billund Flights

The cheapest times to fly from San Juan to Billund

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Juan to Billund are during the month of . You can find some of the cheapest flights from San Juan to Billund with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Juan to Billund

Sunday is one of the best days to book for cheap flights from San Juan to Billund: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Juan to Billund

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Juan to Billund in 2025. You can also book with separate airlines for your outbound and return journeys, from $455 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Juan to Billund flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Juan to Billund airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Luis Munoz Marin Intl. Airport (SJU) to Billund Airport (BLL) cost?
Lock in a cheap one-way flight from $455 or cheap return flight from Luis Munoz Marin Intl. Airport (SJU) to Billund Airport (BLL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Luis Munoz Marin Intl. Airport (SJU) to Billund Airport (BLL)?
The cheapest month to fly from SJU to BLL is , when there's less demand. Off-peak months are usually when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Luis Munoz Marin Intl. Airport (SJU) to Billund Airport (BLL)?
To find the cheapest airline flying from SJU to BLL, use Expedia's filter tool. Tailor your search based on what's important to you, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Luis Munoz Marin Intl. Airport (SJU) to Billund Airport (BLL)?
Nonstop flights from Luis Munoz Marin Intl. Airport (SJU) to Billund Airport (BLL) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SJU to BLL?
Typically you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can vary depending on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Luis Munoz Marin Intl. Airport (SJU) to Billund Airport (BLL)?
Opt for a flight from Luis Munoz Marin Intl. Airport (SJU) to Billund Airport (BLL) that takes off before 3 PM to reduce the likelihood of delays. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Luis Munoz Marin Intl. Airport (SJU) to Billund Airport (BLL) last-minute?
Holding off until right before your break to book a flight from SJU to BLL often results in higher prices. While it's possible to find some last-minute offers, they're not always guaranteed. Be flexible with your itinerary to boost your chances of scoring a bargain.
Is it cheaper to book a SJU to BLL flight and hotel package?
You can save money by booking a SJU to BLL flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. Once you've selected your ideal flights and accommodations, consider other add-ons like activities, car rentals and tours.
Can I cancel or change the date of my flight from Luis Munoz Marin Intl. Airport (SJU) to Billund Airport (BLL)?
Usually, it's possible to reschedule or cancel your SJU to BLL flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.