$750 Cheap Flights from Billund (BLL) to San Francisco (SFO)

View $750 flight on Tue, Feb 17, 2026Opens in a new window

Popular airlines from Billund (BLL) to San Francisco Intl. Airport (SFO)

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Cheap Flights from Billund to San Francisco (BLL-SFO)

Prices were available within the past 7 days and start at $750 for one-way flights and $653 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Fri, May 8 - Fri, May 29
BLL
Billund
SFO
San Francisco
$653 Roundtrip, found 2 days ago
$653
Roundtrip
found 2 days ago
Select British Airways flight, departing Fri, May 8 from Billund to San Francisco, returning Fri, May 29, priced at $653 found 2 days ago
British Airways
Fri, May 8 - Fri, May 29
BLL
Billund
SFO
San Francisco
$697 Roundtrip, found 2 days ago
$697
Roundtrip
found 2 days ago
Select British Airways flight, departing Fri, May 8 from Billund to San Francisco, returning Fri, May 29, priced at $697 found 2 days ago
Swiss International Air Lines
Thu, Aug 14 - Mon, Aug 18
BLL
Billund
SFO
San Francisco
$713 Roundtrip, found 2 hours ago
$713
Roundtrip
found 2 hours ago
Select Swiss International Air Lines flight, departing Thu, Aug 14 from Billund to San Francisco, returning Mon, Aug 18, priced at $713 found 2 hours ago
Swiss International Air Lines
Thu, Aug 14 - Mon, Aug 18
BLL
Billund
SFO
San Francisco
$715 Roundtrip, found 2 hours ago
$715
Roundtrip
found 2 hours ago
Select Swiss International Air Lines flight, departing Thu, Aug 14 from Billund to San Francisco, returning Mon, Aug 18, priced at $715 found 2 hours ago
Lufthansa
Thu, Aug 14 - Mon, Aug 18
BLL
Billund
SFO
San Francisco
$751 Roundtrip, found 2 hours ago
$751
Roundtrip
found 2 hours ago
Select Lufthansa flight, departing Thu, Aug 14 from Billund to San Francisco, returning Mon, Aug 18, priced at $751 found 2 hours ago
Lufthansa
Thu, Aug 14 - Mon, Aug 18
BLL
Billund
SFO
San Francisco
$753 Roundtrip, found 2 hours ago
$753
Roundtrip
found 2 hours ago
Select Lufthansa flight, departing Thu, Aug 14 from Billund to San Francisco, returning Mon, Aug 18, priced at $753 found 2 hours ago
Lufthansa
Thu, Aug 14 - Mon, Aug 18
BLL
Billund
SFO
San Francisco
$780 Roundtrip, found 2 hours ago
$780
Roundtrip
found 2 hours ago
Select Lufthansa flight, departing Thu, Aug 14 from Billund to San Francisco, returning Mon, Aug 18, priced at $780 found 2 hours ago
Air Canada
Fri, May 8 - Fri, May 29
BLL
Billund
SFO
San Francisco
$780 Roundtrip, found 2 days ago
$780
Roundtrip
found 2 days ago
Select Air Canada flight, departing Fri, May 8 from Billund to San Francisco, returning Fri, May 29, priced at $780 found 2 days ago
Lufthansa
Thu, Aug 14 - Mon, Aug 18
BLL
Billund
SFO
San Francisco
$791 Roundtrip, found 2 hours ago
$791
Roundtrip
found 2 hours ago
Select Lufthansa flight, departing Thu, Aug 14 from Billund to San Francisco, returning Mon, Aug 18, priced at $791 found 2 hours ago
Scandinavian Airlines
Thu, Aug 14 - Mon, Aug 18
BLL
Billund
SFO
San Francisco
$1,144 Roundtrip, found 2 hours ago
$1,144
Roundtrip
found 2 hours ago
Select Scandinavian Airlines flight, departing Thu, Aug 14 from Billund to San Francisco, returning Mon, Aug 18, priced at $1,144 found 2 hours ago
Flights from Billund (BLL) to San Francisco (SFO)
Origin airport
Billund
Destination airport
San Francisco Intl.
Airlines serving
Air Canada, British Airways, Finnair, Lufthansa, Scandinavian Airlines
Roundtrip price
$653
Distance
5385 mi

Billund to San Francisco Flights

The cheapest times to fly from Billund to San Francisco

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 Billund to San Francisco are during the month of May. You can find some of the cheapest flights from Billund to San Francisco with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Billund to San Francisco: 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 Billund to San Francisco

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 Billund to San Francisco in 2025. You can also book with separate airlines for your outbound and return journeys, from $750 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 Billund to San Francisco 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 Billund to San Francisco 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 Billund Airport (BLL) to San Francisco Intl. Airport (SFO) cost?
Discover the latest flight deals from BLL to SFO by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from BLL to SFO?
The cheapest flights from BLL to SFO are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from BLL to SFO?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from BLL to SFO. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Billund Airport (BLL) to San Francisco Intl. Airport (SFO)?
There aren't any daily nonstop flights from Billund Airport (BLL) to San Francisco Intl. Airport (SFO). But you can choose flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from BLL to SFO?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Billund Airport (BLL) to San Francisco Intl. Airport (SFO)?
To arrive at San Francisco Intl. Airport (SFO) on schedule, select a flight that leaves Billund Airport (BLL) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Billund Airport (BLL) to San Francisco Intl. Airport (SFO) last-minute?
Last-minute bookings from BLL to SFO are usually more expensive. To secure the best rates, start searching for flights as early as possible. That being said, if you can play around with your travel dates, you may find a cheap ticket right before you leave.
Is it cheaper to book a BLL to SFO flight and hotel package?
You'll typically save money by securing a BLL to SFO flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. After selecting your ideal accommodations and flights, you can add extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Billund Airport (BLL) to San Francisco Intl. Airport (SFO)?
Generally, it's possible to reschedule or cancel your BLL to SFO flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.