$275 Find Cheap Flights from Brussels to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Brussels to San Francisco departing on 10/1. 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 Brussels to San Francisco.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Brussels to San Francisco.
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Useful Info
Flights Deals

Cheap Flights from Brussels to San Francisco

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Brussels 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 Brussels to San Francisco

Wed, Sep 3 - Thu, Sep 18
TAP AIR PORTUGAL Logo
5:55 am - 2:35 pmBRU-SFO
17h 40m1 stop
TAP AIR PORTUGAL Logo
4:20 pm - 8:05 pmSFO-BRU
18h 45m1 stop
$506TAP AIR PORTUGAL
Find Deal
Fri, Oct 3 - Sat, Oct 11
British Airways Logo
7:35 pm - 1:50 pmBRU-SFO
27h 15m1 stop
British Airways Logo
4:30 pm - 7:45 pmSFO-BRU
18h 15m1 stop
$586British Airways
Find Deal
Sun, Oct 19 - Thu, Oct 30
American Airlines Logo
10:40 am - 1:50 pmBRU-SFO
36h 10m1 stop
American Airlines Logo
8:00 am - 10:35 amSFO-BRU
18h 35m2 stops
$611American Airlines
Find Deal
Thu, Sep 4 - Wed, Sep 17
American Airlines Logo
2:50 pm - 1:50 pmBRU-SFO
32h 00m1 stop
American Airlines Logo
6:10 am - 9:55 amSFO-BRU
18h 45m2 stops
$612American Airlines
Find Deal
Sun, Sep 7 - Sat, Sep 20
Scandinavian Airlines Logo
7:00 pm - 4:30 pmBRU-SFO
54h 30m2 stops
Scandinavian Airlines Logo
7:40 pm - 3:20 pmSFO-BRU
34h 40m1 stop
$721Scandinavian Airlines
Find Deal
Wed, Sep 3 - Sat, Sep 20
Scandinavian Airlines Logo
7:10 pm - 4:30 pmBRU-SFO
30h 20m1 stop
Scandinavian Airlines Logo
7:40 pm - 3:20 pmSFO-BRU
34h 40m1 stop
$731Scandinavian Airlines
Find Deal
Mon, Aug 11 - Mon, Aug 25
United Airlines Logo
10:10 am - 11:15 amBRU-SFO
34h 05m1 stop
United Airlines Logo
6:35 am - 7:25 amSFO-BRU
15h 50m1 stop
$739United Airlines
Find Deal
Mon, Dec 15 - Sun, Dec 28
United Airlines Logo
10:00 am - 9:37 pmBRU-SFO
20h 37m1 stop
United Airlines Logo
12:59 am - 8:55 amSFO-BRU
22h 56m1 stop
$740United Airlines
Find Deal
Mon, Jul 21 - Fri, Aug 15
Lufthansa Logo
9:30 am - 3:55 pmBRU-SFO
15h 25m1 stop
Lufthansa Logo
7:00 am - 7:00 amSFO-BRU
15h 00m1 stop
$777Lufthansa
Find Deal
Fri, Aug 1 - Fri, Aug 8
Lufthansa Logo
12:00 pm - 12:57 amBRU-SFO
21h 57m1 stop
Lufthansa Logo
7:00 am - 7:00 amSFO-BRU
15h 00m1 stop
$971Lufthansa
Find Deal
Useful Info

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

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

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

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

If your flying dates are flexible, you should consider flying to San Francisco on a Sunday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Brussels to San Francisco. For your return ticket, we recommend flying on a Tuesday and avoiding Fridays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Brussels 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 Brussels to San Francisco is March, where tickets cost $597 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is $874 and $847 respectively.

How far in advance should I book a flight from Brussels 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 Brussels 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 Brussels to San Francisco, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Cheapest flight$275
Flight from Brussels Airport to San Francisco

When to book flights from Brussels to San Francisco

Are your dates flexible? Find out the best times to travel from Brussels 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 Brussels to San Francisco

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

    In the last 3 days, the lowest price for a flight from Brussels to San Francisco was $275 for a one-way ticket and $506 for a round-trip.

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

    Yes

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

    Brussels is served by 2 major airports and there is only 1 main airport in San Francisco. You will leave Brussels from one of these airports: Brussels Bruxelles-National or Charleroi Brussels. You will be arriving at San Francisco.

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

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

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

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Brussels and San Francisco, with Star Alliance being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Brussels 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 Brussels to San Francisco.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Brussels 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 Brussels 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 Brussels with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Brussels 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 Brussels up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Brussels to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Brussels 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 Brussels 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.
7.4
United AirlinesOverall score based on 8810 reviews
8.1Crew
7.3Comfort
7.0Entertainment
6.6Food
7.7Boarding
Airline reviews

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

8.0 ExcellentLawrence, Jun 2025HNL - SFO
Read more United Airlines reviews

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Airbus plane, nice and polite staff, entertainment even as it was a short flight.

United out of SFO is having issues with catering so none of our meals were loaded on the plane and no offer of compensation for our tickets purchased was offered.

Its good expeince but in enternteiment please be like you tube the music i like or movie

I needed to make changes to my flights. When I called customer service, they assisted me with care professionalism.

A bit rush for transit. Food and entertainment are not available

The gate was too far away for the connecting flight

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

headphone jack didnt work for the first flight and not much variety

The agents was very rude and they charged me $50 for a carry-on bag saying that it was too big and then I saw someone going on a plane with the same size bag as me

Loved the staff, boarding and drink options! Wish the comfort of the seat could have been better nevertheless

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

Long 5 hour and 45 min flight and only one drink service and cookie snack

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

Flight boarded from Gate 39 at OGG, the farthest gate in the terminal. There were no Hawaiian themed amenities for the flight. The first class service was mediocre at best; I received not special welcome or recognition as an executive platinum member of American Advantage program. The flight attendants were more concerned with their cell phones than saying "thank you" to the passengers as we disembarked. Fortunately, the flight arrived at LAX a few minutes early.

Bigger seats. Board back to front! Disembark front to back!

Extraordinary service in business class, and very good breakfast and snacks. A really lovely flight.

This flight didn’t happen because AA agents didn’t let us board the flight

Plane was pretty clean, staff was friendly and helpful, flight left about on time arrived early. Took a long time to board and get off the plane - carry on items didn't have enough room so people had to move all around to find places.

The service and food needs to improve to catch up with other international flights

I would definitely use a Linus again, the price was right, the service is excellent. No delays. Wish I had a direct flight from my hometown Detroit.

At check-in the unmanned machines said QR code was invalid so had to queue for over an hour to check in bags

i used to fly aer Lingus regularly but due to price - poor seating etc i have been using other carriers - i now have aer lingus in my state and the price is always the highest - i have flown to Ireland 11 times in last 24 months and have not used Hartford because of price

Nicest staff I’ve experienced on a plane! Good food, great entertainment, and they gave out little blankets that my kids loved. All in all, great experience.

I dont fly them much anymore. Other carries offere better pricing and better seating options

The Glasgow to Dublin route was very efficiently boarded, flight and landing and disembarkation were all super smooth. Dublin to JFK flight I was very pleasantly surprised overall. This was my first time on Aer Lingus and having already come off the short regional flight I was curious to know how the international flight would go. Aircraft was solid, entertainment options were better than expected, flight crew were experienced and operated like clockwork. Main entree left a little something to be desired but the snack was very tasty. Boarding and disembarkation again very smooth and pilots got us in earlier than expected. Would definitely fly again

Unfortunately the flight was delayed for 50 min. Just as we were about to board so that was a drag. The boarding was average. The bag check in process was new to us and efficient. And the flight itself was smooth- basically no turbulence.

I liked how they looked after couples by providing a row of 4 seats if available.

Food was very bad. Boarding was disorganized and messy. Crew was friendly

It was ok not that much because I always travel with Emirates airlines, Etihad, airlines, Qatar airlines compare to them food and comfortable was too low . Staff was good . Helpful

Cheapest airlines I have ever been on. I got downgraded and never got on united. I got rerouted through Vancouver onto jetwesf

Never happened. Flight was delayed. Had to be re rojyed

I was very grateful for Lufthansa's role in organizing mobility support. The touchscreen on my seat was faulty: slow, stained (I couldn't get it clean), and glitchy. This made selecting movies extremely time consuming, and twice I had to start all over from the beginning.

Beautifully maintained airplane, good food, professional crew, top-notch communication. I highly recommend Lufthansa for intercontinental flights between the United States and Europe.

Lufthansa is my favorite airline and have flown oversea with them for the past 25 years: i always found them so professional and incredibly efficient from checking in to arrival. I also love their Munich or Frankfurt airports.

The United flight was excellent! The flight attendants were attentive and nice, and the food was very good! And the glasses are larger than on Lufthansa flights! I don’t want to have to ask for 15 glasses of water because their glasses are ridiculously small!

The food not that great. Did not like the fact that we could not purchase upgrade at the airport

We paid for business class, and my seat did not work at all. Each time I wanted to adjust the position, an attendant had to come to physically force the seat into its new position. They tried to fix it by fiddling with the electronics (military reset, for example), to no avail. Also, the food was just mediocre. We were at the end of a serving section, so they ran out of several choices. (This was on the flight from Los Angeles to Munich.)

The crew was the best I’ve ever encountered. Business class was spacious, immaculate, and very modern.

The plane was very clean. The bathroom was clean as well. The land crew were very polite and informative and helpful. They informed me that there is a long way and challenging to go from international terminal to national terminal and in addition to getting my suitcases and going through customs and dropping them again for my second leg of trip which was San Francisco to Los Angeles . I have left knee issue and had a recent fall with aching muscles all over, the land crew suggested wheelchair help for me, God bless her. If I did not have help, I could not make it to my last terminal. Thank you UNITED AIRLINE!

Better synchronizing the boarding processes. The audio announcements, the personnel and the digital signage were not saying the same thing. All confusion.

The first class seats were unusable, mine at the end of the flight, my husband's in the middle of the flight, and the one next to me was unusable either, they had to move the person to another seat.

Last minute gate change. Didn’t put our TSA global on our trip even though we asked multiple times to confirm. Did not help with food when could not eat what was served.

Our luggage didn’t arrive with us, that puts a damper on the whole trip.

The cabin was bit colder than I like but the crew members looked after us very well. They did even offer hot water bottle and hot chocolate. I cannot rate the crew enough excellent is not good enough. They really were wonderful.

Boarding is always a challenge as folks in al groups crowd around for no reason, but crew handled it well. I once again applaud the LHR ground baggage staff as they got our bags from a flight at Terminal 5A to a flight in Terminal 5C within 40 minutes...amazing!

This flight from London to Chicago was actually on an AA airline. I did book through BA but the flight was AA. Great flight, hectic in Chicago, I wouldn't choose to fly through Chicago again, but that's not the airlines fault. The flight itself was great.

Push back is not working when I complaint a male staff he told me that most of the seats are like that so we can’t do anything

Seats were way too small. I got claustrophobic waiting for trash from meal to be taken away. I couldn't move to even close my tray until trash was taken.

Was 3 hrs delayed and my poor friend I met in Barcelona was waiting at airport for 3 hrs. Dallas airport was awful

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.