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$918+ 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
BLL — SFO
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheapflights Tip: 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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,067
(SWISS)

Popular in

July

Cheapest in

November

Average price

$692
Provider with most accurate pricing for Billund-San Francisco flight deals.
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Provider most trusted by Cheapflights users for Billund-San Francisco flights.
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From Billund to San Francisco
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($152 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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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 March 28, 2025.

This Travelis deal was found by Cheapflights users on 3/26. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/16:35 pmBLL - SFO
1 stop26h 10mAir France
Tue 4/83:05 pmSFO - BLL
1 stop22h 20mAir France
Deal found 3/26$918
This SWISS deal was found by Cheapflights users on 3/27. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/116:40 pmBLL - SFO
2 stops31h 56mSWISS
Sun 5/187:30 pmSFO - BLL
1 stop14h 40mSWISS
Deal found 3/27$1,067
This Travelis deal was found by Cheapflights users on 3/26. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/16:00 amBLL - SFO
2 stops17h 20mMultiple Airlines
Tue 4/81:45 pmSFO - BLL
1 stop18h 55mMultiple Airlines
Deal found 3/26$1,076
This Travelis deal was found by Cheapflights users on 3/26. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1212:35 pmBLL - SFO
1 stop12h 55mScandinavian Airlines
Wed 4/167:40 pmSFO - BLL
1 stop15h 55mScandinavian Airlines
Deal found 3/26$1,402
This Lufthansa deal was found by Cheapflights users on 3/27. 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.
Fri 4/111:05 pmBLL - SFO
1 stop14h 55mLufthansa
Tue 4/151:10 pmSFO - BLL
1 stop15h 50mLufthansa
Deal found 3/27$1,470
This United Airlines deal was found by Cheapflights users on 3/27. 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.
Fri 4/116:00 amBLL - SFO
1 stop15h 40mUnited Airlines
Tue 4/151:10 pmSFO - BLL
1 stop15h 50mUnited Airlines
Deal found 3/27$1,490
This Delta deal was found by Cheapflights users on 3/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1110:15 amBLL - SFO
2 stops31h 17mDelta
Tue 4/159:10 amSFO - BLL
2 stops17h 00mDelta
Deal found 3/27$1,549
This KLM deal was found by Cheapflights users on 3/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/136:00 amBLL - SFO
1 stop14h 45mKLM
Thu 4/171:45 pmSFO - BLL
1 stop14h 45mKLM
Deal found 3/28$1,651
This Travelis deal was found by Cheapflights users on 3/26. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/126:00 amBLL - SFO
2 stops24h 46mAir Canada
Wed 4/167:00 amSFO - BLL
2 stops22h 05mAir Canada
Deal found 3/26$2,493

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 March 28, 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

Sun 5/11

6:40 pm-5:36 pm

2 stops31h 56m

San Francisco

Sun 5/18

7:30 pm-7:10 pm

1 stop14h 40m

$1,067

BillundSan Francisco

BLL - SFO

BLLSFO

Billund

Sat 4/12

12:35 pm-4:30 pm

1 stop12h 55m

San Francisco

Wed 4/16

7:40 pm-8:35 pm

1 stop15h 55m

$1,402

BillundSan Francisco

BLL - SFO

BLLSFO

Billund

Fri 4/11

1:05 pm-7:00 pm

1 stop14h 55m

San Francisco

Tue 4/15

1:10 pm-2:00 pm

1 stop15h 50m

$1,470

BillundSan Francisco

BLL - SFO

BLLSFO

Billund

Fri 4/11

6:00 am-12:40 pm

1 stop15h 40m

San Francisco

Tue 4/15

1:10 pm-2:00 pm

1 stop15h 50m

$1,490

BillundSan Francisco

BLL - SFO

BLLSFO

Billund

Fri 4/11

10:15 am-8:32 am

2 stops31h 17m

San Francisco

Tue 4/15

9:10 am-11:10 am

2 stops17h 00m

$1,549

BillundSan Francisco

BLL - SFO

BLLSFO

Billund

Sun 4/13

6:00 am-11:45 am

1 stop14h 45m

San Francisco

Thu 4/17

1:45 pm-1:30 pm

1 stop14h 45m

$1,651

BillundSan Francisco

BLL - SFO

BLLSFO

Billund

Sat 4/12

6:35 pm-11:45 am

1 stop26h 10m

San Francisco

Wed 4/16

7:00 am-2:05 pm

2 stops22h 05m

$1,998

BillundSan Francisco

BLL - SFO

BLLSFO

Billund

Sat 4/12

6:00 am-9:46 pm

2 stops24h 46m

San Francisco

Wed 4/16

7:00 am-2:05 pm

2 stops22h 05m

$2,493

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Compare providers for flights from Billund to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Billund to San Francisco in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.

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 March 21, 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 $398). 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 March 28, 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 March 28, 2025.
Delta
8.0
Very good
7,896 reviews

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,896 reviews
Delta
8.0
Very good
7,896 reviews

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,321 reviews
Delta
8.0
Very good
7,896 reviews

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
SWISS
7.5
Good
1,570 reviews
Delta
8.0
Very good
7,896 reviews

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,603 reviews
Delta
8.0
Very good
7,896 reviews

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Scandinavian Airlines
7.3
Good
1,325 reviews
Delta
8.0
Very good
7,896 reviews

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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?

    SWISS, at $1,067, was found to be the cheapest airline from Billund to San Francisco.Alternate airlines to your destination round-trip include Scandinavian Airlines and Lufthansa.

  • 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 $398). 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
Santa Cruz
Turlock
Fairfield
South San Francisco
Manteca
Sausalito
Richmond
Watsonville
Hollister
Milpitas
Antioch
Hayward
Vallejo
Newark
Alameda
Campbell
Daly City
Pacific Grove

Browse thousands of different options on Cheapflights for your next trip

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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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$491Average$612FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$538Average$634FlexibilityNo cancel feeOn-time76%
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