HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Francisco

$641+ Cheap flights from Billund (BLL) to San Francisco (SFO)

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 3/8. Fares are subject to change and may not be available on all flights or dates of travel.
BLL — SFO
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Billund to San Francisco with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

The best prices from Billund to San Francisco are usually found in November or February, booked 85 days in advance, depart on a Tuesday or Wednesday and return on a Sunday

Cheap flight deals from Billund to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Billund (BLL) to San Francisco (SFO). 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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$641
(Lufthansa)

Popular in

July

Cheapest in

November

Average price

$599
Provider with most accurate pricing for Billund-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Billund-San Francisco flights.
Search Deals
From Billund to San Francisco
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($169 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

Find flight deals from Billund to San Francisco

Cheapest flights from Billund to San Francisco
Explore the most affordable flight options available from Billund to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This Lufthansa deal was found by Cheapflights users on 2/20. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/86:15 amBLL - SFO
1 stop21h 30mLufthansa
Wed 3/122:35 pmSFO - BLL
1 stop13h 55mLufthansa
Deal found 2/20$641
This United Airlines deal was found by Cheapflights users on 2/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/86:30 amBLL - SFO
1 stop18h 30mUnited Airlines
Wed 3/127:15 amSFO - BLL
2 stops22h 00mUnited Airlines
Deal found 2/20$644

Find flights from Billund to San Francisco within your budget

Customize your flight search to find flights from Billund to San Francisco 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 February 20, 2025.

Fly from

Billund

Fly to

San Francisco

Route

Depart

Return

Price

BillundSan Francisco

BLL - SFO

BLLSFO

Billund

Sat 3/8

6:15 am-6:45 pm

1 stop21h 30m

San Francisco

Wed 3/12

2:35 pm-12:30 pm

1 stop13h 55m

$641

BillundSan Francisco

BLL - SFO

BLLSFO

Billund

Sat 3/8

6:30 am-4:00 pm

1 stop18h 30m

San Francisco

Wed 3/12

7:15 am-1:15 pm

2 stops22h 00m

$644

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

  • Most accurate provider: When it comes to deals on Billund-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Billund-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Billund-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Billund-San Francisco flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Billund-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Billund to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Billund 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.

Travel insights for flights from Billund to San Francisco

Get recent, data-driven insights about flights from Billund to San Francisco including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Billund to San Francisco?

Use this chart to determine the optimal time to book a round-trip flight from Billund to San Francisco. Price data was last updated on February 14, 2025.

Booking 85 days in advance of your planned departure date is, on average, the best time to get cheap flights from Billund to San Francisco. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Billund to San Francisco?

Currently, January is the cheapest month in which you can book a flight from Billund to San Francisco (average of $276). Flying from Billund to San Francisco in June is currently the most expensive (average of $403). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BLL to SFO?

Find hourly flight availability from Billund to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

It’s optimal to fly from Billund to San Francisco in the morning. By choosing this option you can save up to 16% on the cost of your flight, compared to a flight at noon.

Rainfall in San Francisco by month

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

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

Temperature in San Francisco by month

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

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated February 20, 2025.
United Airlines
7.4
Good
8,765 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.1

Food

6.7

Comfort

7.3

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

United Airlines
7.4
Good
8,765 reviews
United Airlines
7.4
Good
8,765 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.1

Food

6.7

Comfort

7.3

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

Lufthansa
6.7
Okay
6,986 reviews
United Airlines
7.4
Good
8,765 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.1

Food

6.7

Comfort

7.3

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

Related info for your journey

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

  • What are the cheapest airlines flying from Billund to San Francisco round-trip?

    Lufthansa, at $641, was found to be the cheapest airline from Billund to San Francisco. An alternate airline flying to your destination would be United Airlines. Lufthansa is priced at 12% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Billund to San Francisco that include hotel bookings?

    Yes. In addition to deals on Billund to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Billund to San Francisco?

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

  • Can I find deals for business class flights from Billund to San Francisco?

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

  • What is the cheapest month to book a flight from Billund to San Francisco?

    Currently, January is the cheapest month in which you can book a flight from Billund to San Francisco (average of $276). Flying from Billund to San Francisco in June is currently the most expensive (average of $403). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Billund?

Book flights to Billund if you plan to visit one of these locations
Roseville
Mountain View
Turlock
Santa Cruz
Fairfield
Manteca
Sausalito
Watsonville
Hayward
Richmond
Hollister
South San Francisco
Antioch
Milpitas
Vallejo
Newark
Alameda
Campbell
Pacific Grove
Sunnyvale

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Billund to San Francisco

Discover the top 2 airlines that operate flights from Billund to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$491Average$662FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$538Average$629FlexibilityNo cancel feeOn-time76%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.