HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Francisco

$586+ 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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
BLL — SFO
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
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.

Cheapflights Tip: The best prices from Billund to San Francisco are usually found in February or March, booked 64 days in advance, depart on a Tuesday or Wednesday and return on a Sunday

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 November 26, 2025.

This United Airlines deal was found by Cheapflights users on 11/24. 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.
Wed 12/242:25 pmBLL - SFO
1 stop14h 45mUnited Airlines
Wed 1/71:35 pmSFO - BLL
1 stop14h 50mUnited Airlines
Deal found 11/24$651
This Ticket deal was found by Cheapflights users on 11/24. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:30 amBLL - SFO
1 stop15h 10mLufthansa
Tue 1/69:40 pmSFO - BLL
2 stops16h 40mLufthansa
Deal found 11/24$666
This United Airlines deal was found by Cheapflights users on 11/24. 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.
Wed 12/242:25 pmBLL - SFO
2 stops42h 38mUnited Airlines
Fri 1/96:45 amSFO - BLL
2 stops21h 35mUnited Airlines
Deal found 11/24$676
This Lufthansa deal was found by Cheapflights users on 11/24. 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.
Tue 12/236:30 amBLL - SFO
1 stop15h 10mLufthansa
Wed 1/71:35 pmSFO - BLL
1 stop14h 50mLufthansa
Deal found 11/24$679
This United Airlines deal was found by Cheapflights users on 11/24. 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.
Tue 12/236:30 amBLL - SFO
1 stop15h 10mUnited Airlines
Thu 1/81:35 pmSFO - BLL
1 stop14h 45mUnited Airlines
Deal found 11/24$701
This United Airlines deal was found by Cheapflights users on 11/24. 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.
Wed 12/242:25 pmBLL - SFO
2 stops34h 16mUnited Airlines
Tue 1/611:56 pmSFO - BLL
2 stops48h 49mUnited Airlines
Deal found 11/24$703
This United Airlines deal was found by Cheapflights users on 11/24. 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.
Thu 12/2510:35 amBLL - SFO
2 stops30h 05mUnited Airlines
Fri 1/96:45 amSFO - BLL
2 stops21h 35mUnited Airlines
Deal found 11/24$707
This Lufthansa deal was found by Cheapflights users on 11/24. 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.
Mon 12/222:15 pmBLL - SFO
1 stop31h 25mLufthansa
Wed 1/71:35 pmSFO - BLL
1 stop14h 50mLufthansa
Deal found 11/24$713
This United Airlines deal was found by Cheapflights users on 11/24. 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.
Wed 12/242:25 pmBLL - SFO
1 stop14h 45mUnited Airlines
Mon 1/512:50 pmSFO - BLL
2 stops35h 55mUnited Airlines
Deal found 11/24$718
This United Airlines deal was found by Cheapflights users on 11/24. 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.
Mon 12/222:15 pmBLL - SFO
1 stop31h 25mUnited Airlines
Fri 1/96:45 amSFO - BLL
2 stops21h 35mUnited Airlines
Deal found 11/24$720

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 November 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$586
(Ticket)

Popular in

July

Cheapest in

February

Average price

$800
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. 11% potential increase in price ($102 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
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 November 26, 2025.
Use the filters below to find and compare flights from Billund to San Francisco that are best for you.

Fly from

Billund

Fly to

San Francisco

Route

Depart

Return

Price

BillundSan Francisco

BLL - SFO

BLLSFO

Billund

Thu 1/15

9:15 pm-2:35 pm

1 stop26h 20m

San Francisco

Mon 1/19

4:40 pm-11:55 pm

1 stop22h 15m

$586

BillundSan Francisco

BLL - SFO

BLLSFO

Billund

Fri 1/16

6:30 am-8:10 pm

1 stop22h 40m

San Francisco

Tue 1/20

1:35 pm-1:40 pm

1 stop15h 05m

$600

BillundSan Francisco

BLL - SFO

BLLSFO

Billund

Thu 1/22

3:40 pm-2:35 pm

1 stop31h 55m

San Francisco

Sun 1/25

4:40 pm-10:35 am

1 stop32h 55m

$639

BillundSan Francisco

BLL - SFO

BLLSFO

Billund

Thu 1/22

1:00 pm-12:47 am

2 stops20h 47m

San Francisco

Sun 1/25

8:40 pm-12:20 pm

1 stop30h 40m

$641

BillundSan Francisco

BLL - SFO

BLLSFO

Billund

Thu 1/15

6:30 am-11:00 pm

2 stops25h 30m

San Francisco

Mon 1/19

1:30 pm-11:20 pm

2 stops24h 50m

$650

BillundSan Francisco

BLL - SFO

BLLSFO

Billund

Thu 1/22

6:30 am-12:40 pm

1 stop15h 10m

San Francisco

Sun 1/25

2:40 pm-11:10 pm

1 stop23h 30m

$653

BillundSan Francisco

BLL - SFO

BLLSFO

Billund

Tue 1/6

6:05 pm-1:18 pm

3 stops52h 13m

$614

BillundSan Francisco

BLL - SFO

BLLSFO

Billund

Wed 12/31

6:40 pm-12:12 pm

3 stops50h 32m

$782

BillundSan Francisco

BLL - SFO

BLLSFO

Billund

Sun 1/4

6:30 am-10:03 pm

3 stops48h 33m

$788

BillundSan Francisco

BLL - SFO

BLLSFO

Billund

Thu 1/1

6:30 am-12:12 pm

2 stops38h 42m

$818

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/24

Showing 1-10 of 18 results
1
2
  • Most accurate provider: When it comes to deals on Billund-San Francisco flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Billund-San Francisco flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

Cheapflights Insights

Everything you need to know about your flight from Billund to San Francisco

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 November 21, 2025.

Booking 64 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, February is the cheapest month in which you can book a flight from Billund to San Francisco (average of $519). Flying from Billund to San Francisco in July is currently the most expensive (average of $752). 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.

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 November 26, 2025.
Read through reviews of airlines operating flights from Billund to San Francisco, such as Lufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Lufthansa
6.8
Okay
7,594 reviews

Comfort

6.8

Food

6.3

Overall

6.8

Boarding

7.0

Crew

7.6

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Jan 2025

FRA - TPA

I had ordered a gluten-free meal through you I double triple checked that through you got screamed at by one of your representatives. She yelled at me and said that she had ordered the mail, she had chosen my seat, and made sure that all my baggage is were paid for. That was a lie. My experience with discover airlines in and of itself was GOOD but your representative was out of line did not do anything that she screamed at me and told me she did and I literally had to call the airlines myself to get my seat selected to double check on my gluten-free meal which still was not on board and to pay for my bags which I thought that I paid for all of them until I got to the airport and I still had to pay for my check back. So cheap flights I will never use you again.
Lufthansa
6.8
Okay
7,594 reviews
Lufthansa
6.8
Okay
7,594 reviews

Comfort

6.8

Food

6.3

Overall

6.8

Boarding

7.0

Crew

7.6

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Jan 2025

FRA - TPA

I had ordered a gluten-free meal through you I double triple checked that through you got screamed at by one of your representatives. She yelled at me and said that she had ordered the mail, she had chosen my seat, and made sure that all my baggage is were paid for. That was a lie. My experience with discover airlines in and of itself was GOOD but your representative was out of line did not do anything that she screamed at me and told me she did and I literally had to call the airlines myself to get my seat selected to double check on my gluten-free meal which still was not on board and to pay for my bags which I thought that I paid for all of them until I got to the airport and I still had to pay for my check back. So cheap flights I will never use you again.

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.

  • How long is the flight from Billund to San Francisco?

    A quick flight from Billund to San Francisco can take about 22h 40m. Scandinavian Airlines provides one of the quickest options available for as low as $600. The distance between Billund and San Francisco is about 5382 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Billund to San Francisco round-trip?

    Lufthansa, at $537, was found to be the cheapest airline from Billund to San Francisco.. Lufthansa is priced at 31% 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, February is the cheapest month in which you can book a flight from Billund to San Francisco (average of $519). Flying from Billund to San Francisco in July is currently the most expensive (average of $752). 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 San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Roseville
South San Francisco
Santa Cruz
Livermore
Turlock
Manteca
Watsonville
Sunnyvale
Santa Clara
San Bruno
Daly City
Redwood City
Vallejo
Hollister
Foster City
Milpitas
Union City
Davis
Hayward
Burlingame

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 airline flying from Billund to San Francisco

Discover the top airline 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 November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$537Average$674FlexibilityNo 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.