BLL - SFO

$682 Find Cheap Flights from Billund to San Francisco

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Billund to San Francisco departing on 10/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Billund to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Billund to San Francisco, as well as popular online travel agencies
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Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Billund to San Francisco that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Billund to San Francisco

Sat, Oct 25 - Wed, Oct 29
Lufthansa Logo
2:35 pm - 7:55 pmBLL-SFO
14h 20m1 stop
Lufthansa Logo
8:30 am - 10:00 amSFO-BLL
17h 30m2 stops
$682Lufthansa
Find Deal
Sat, Oct 25 - Wed, Oct 29
Lufthansa Logo
2:35 pm - 7:55 pmBLL-SFO
14h 20m1 stop
Lufthansa Logo
3:40 pm - 1:25 pmSFO-BLL
13h 45m1 stop
$683Lufthansa
Find Deal
Wed, Dec 17 - Wed, Jan 7
Lufthansa Logo
6:35 am - 12:40 pmBLL-SFO
15h 05m1 stop
Lufthansa Logo
2:40 pm - 11:10 pmSFO-BLL
23h 30m1 stop
$690Lufthansa
Find Deal
Fri, Feb 20 - Tue, Feb 24
United Airlines Logo
6:30 am - 3:55 pmBLL-SFO
18h 25m1 stop
United Airlines Logo
10:40 am - 1:40 pmSFO-BLL
18h 00m2 stops
$709United Airlines
Find Deal
Fri, Feb 20 - Tue, Feb 24
British Airways Logo
12:55 pm - 6:45 pmBLL-SFO
14h 50m1 stop
British Airways Logo
5:30 pm - 12:10 pmSFO-BLL
33h 40m1 stop
$711British Airways
Find Deal
Fri, Feb 20 - Tue, Feb 24
United Airlines Logo
6:30 am - 7:41 pmBLL-SFO
22h 11m2 stops
United Airlines Logo
8:30 am - 1:40 pmSFO-BLL
20h 10m2 stops
$714United Airlines
Find Deal
Sat, Nov 22 - Sun, Nov 30
Multiple Airlines Logo
2:15 pm - 8:10 pmBLL-SFO
14h 55m1 stop
Multiple Airlines Logo
1:35 pm - 1:30 pmSFO-BLL
14h 55m1 stop
$729Multiple Airlines
Find Deal
Sat, Oct 25 - Wed, Oct 29
Delta Logo
6:00 am - 5:51 pmBLL-SFO
20h 51m2 stops
Delta Logo
10:30 am - 2:35 pmSFO-BLL
20h 05m2 stops
$740Delta
Find Deal
Wed, Dec 17 - Tue, Jan 6
British Airways Logo
8:45 pm - 3:00 pmBLL-SFO
27h 15m1 stop
British Airways Logo
12:17 am - 12:10 pmSFO-BLL
26h 53m2 stops
$840British Airways
Find Deal
Sat, Nov 22 - Sun, Nov 30
Multiple Airlines Logo
2:15 pm - 2:35 pmBLL-SFO
33h 20m3 stops
Multiple Airlines Logo
4:40 pm - 11:10 pmSFO-BLL
21h 30m3 stops
$1,016Multiple Airlines
Find Deal

Everything you should know

Top airlines
Lufthansa
Cheapest • from $682 (round-trip)
Lufthansa
Best reviews • 6.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 16% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 22% price drop
September
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$682
Typical prices: $596-897
Lufthansa
Sat 10/25Wed 10/29
BLL - SFO • 1 stop
Cheapest one-way
Multiple Airlines
Fri 10/3
BLL - SFO • multi-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Francisco!
Booking Insights

KAYAK's insights & trends for Billund to San Francisco flights

Get data-powered insights and trends into flights from Billund to San Francisco to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Billund to San Francisco?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Billund to San Francisco departing in October.

What’s the cheapest day of the week to fly from Billund to San Francisco?

The average price of all round-trip flights from Billund to San Francisco clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Billund to San Francisco, look for departures on Tuesdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from San Francisco, Sunday is the cheapest day to fly and Friday is the most expensive.

What is the cheapest month to fly from Billund to San Francisco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Billund to San Francisco, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Billund to San Francisco is February, where tickets cost $596 (return) on average. On the other hand, the most expensive months are July and May, where the average cost of round-trip tickets is $1,085 and $848 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Billund to San Francisco, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Billund to San Francisco, you should book around 4 weeks before departure, which saves you about 16% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$682
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly and prices are also 0% lower on average.
Flight from Billund to San Francisco

When to book flights from Billund to San Francisco

Are your dates flexible? Find out the best times to travel from Billund to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Billund to San Francisco

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

    In the last 3 days, the lowest price for a flight from Billund to San Francisco was $682 for a round-trip ticket.

  • Do I need a passport to fly between Billund and San Francisco?

    Yes

  • Which airports will I be using when flying from Billund to San Francisco?

    Billund airport is called Billund and the only airport in San Francisco is San Francisco.

  • Which aircraft models fly most regularly from Billund to San Francisco?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Billund to San Francisco?

    Star Alliance is the only airline alliance operating flights between Billund and San Francisco.

  • How does KAYAK find such low prices on flights from Billund to San Francisco?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Billund to San Francisco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Billund to San Francisco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Billund is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Billund to San Francisco?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back to Billund with another airline. Booking your flights between Billund and SFO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Billund to San Francisco?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Billund up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Billund to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Billund to San Francisco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Billund to San Francisco? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.8
LufthansaOverall score based on 7448 reviews
7.0Boarding
6.8Comfort
6.3Food
7.6Crew
6.4Entertainment
Airline reviews

Bought a seat in a flight that got changed out so ended up paying for a seat I would have had if I hadn't paid.

6.0 GoodPete, Oct 2025FRA - TPA
Read more Lufthansa reviews

Bought a seat in a flight that got changed out so ended up paying for a seat I would have had if I hadn't paid.

Food was poor quality and the screens for entertainment didn’t work properly

Food was much better than my outbound flight. On-time. Good service. I had a problem with my entertainment screen, but the attendant fixed it promptly.

I think they overbooked Frankfurt to New York and bumped me off. This changed my return travel I arrived home about 4 hours late. Almost 24 total travel time Totally unacceptable Would not travel with United

United lost my travel information and canceled my original flight. I had a seat assignment but was refused the booking. I had to prove that I went to Germany on United Very concerned about security that no one recorded my passport from Cleveland to NY and NY to Frankfurt I arrived at home at 12:30am on Saturday instead of 8pm I expect a full refund from United Please provide information to assure compensation

I paid for extra legroom which made the long flight very comfortable. Food was very tasty, they fed us 2 meals plus a cookie snack and extra liquids. Checked luggage is expensive.

Lufthansa is turning into a budget airline. On transfers, the luggage never arrives if you have less than 2 hours for the transfer. This is happened to me multiple times when I end up on flights serviced by Lufthansa. The first leg of the flight was serviced by Discover Airlines. It was a 3-hour flight and they only offer a glass of water. Everything else is for purchase. I purchased my ticket as economy which should have included a bag but it ended up booking as economy light so I had to pay for a bag in each direction.

We left 1.5 hours late therefore missing my connection. The airline didn’t give vouchers.

Food could have something without dairy, I couldn't eat anything. Tv for both seats was malfunctioning. They have one bottle of ginger ale for entire plane.... and I paid extra for these seats...very disappointed

The flight and crew were good. The customer experience on the ground could have been better. We had to reschedule our flight because of a delay on the previous flight. The attendants working the desk in Washington DC were not helpful. They told us to scan a QR code and that would get us rebooked. Why couldn't two people standing at their computers do this? We had to chat with someone to get everything figured out. It was extremely confusing.

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

Information on your arrival and departure airports

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