$384 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 10/4. 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

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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.
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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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Brussels to San Francisco

Thu, Nov 20 - Mon, Dec 8
TAP AIR PORTUGAL Logo
5:55 pm - 4:05 pmBRU-SFO
31h 10m1 stop
TAP AIR PORTUGAL Logo
4:35 pm - 5:05 pmSFO-BRU
15h 30m1 stop
$496TAP AIR PORTUGAL
Find Deal
Thu, Sep 11 - Wed, Sep 24
TAP AIR PORTUGAL Logo
5:55 am - 2:30 pmBRU-SFO
17h 35m1 stop
TAP AIR PORTUGAL Logo
4:20 pm - 8:05 pmSFO-BRU
18h 45m1 stop
$501TAP AIR PORTUGAL
Find Deal
Sun, Dec 14 - Sun, Jan 11
Scandinavian Airlines Logo
7:45 pm - 2:35 pmBRU-SFO
27h 50m2 stops
Scandinavian Airlines Logo
4:40 pm - 7:50 pmSFO-BRU
18h 10m1 stop
$507Scandinavian Airlines
Find Deal
Thu, Nov 20 - Sat, Dec 6
Scandinavian Airlines Logo
10:20 am - 2:35 pmBRU-SFO
13h 15m1 stop
Scandinavian Airlines Logo
4:40 pm - 7:50 pmSFO-BRU
18h 10m1 stop
$533Scandinavian Airlines
Find Deal
Sat, Sep 27 - Fri, Oct 10
American Airlines Logo
10:40 am - 11:59 pmBRU-SFO
22h 19m2 stops
American Airlines Logo
1:19 pm - 5:20 pmSFO-BRU
19h 01m2 stops
$544American Airlines
Find Deal
Sat, Sep 27 - Sun, Oct 12
British Airways Logo
10:40 am - 11:59 pmBRU-SFO
22h 19m2 stops
British Airways Logo
7:20 pm - 6:00 pmSFO-BRU
13h 40m1 stop
$547British Airways
Find Deal
Thu, Sep 11 - Wed, Sep 24
British Airways Logo
10:50 am - 9:18 pmBRU-SFO
19h 28m2 stops
British Airways Logo
6:00 am - 2:05 pmSFO-BRU
23h 05m2 stops
$548British Airways
Find Deal
Sat, Dec 6 - Sat, Dec 27
Aer Lingus Logo
10:15 am - 3:35 pmBRU-SFO
14h 20m1 stop
Aer Lingus Logo
5:20 pm - 6:15 pmSFO-BRU
15h 55m1 stop
$549Aer Lingus
Find Deal
Wed, Dec 3 - Sun, Dec 28
American Airlines Logo
11:50 am - 6:45 pmBRU-SFO
15h 55m1 stop
American Airlines Logo
5:30 pm - 7:55 pmSFO-BRU
17h 25m1 stop
$554American Airlines
Find Deal
Thu, Oct 9 - Tue, Oct 14
Aer Lingus Logo
10:20 am - 3:55 pmBRU-SFO
14h 35m1 stop
Aer Lingus Logo
5:40 pm - 8:40 pmSFO-BRU
18h 00m1 stop
$558Aer Lingus
Find Deal
Booking Insights

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.

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

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 $598 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is $847 and $809 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 3 weeks before departure, which saves you about 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Cheapest flight$384
Flight from Charleroi Brussels 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 $384 for a one-way ticket and $496 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?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Brussels and San Francisco, with oneworld 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 8916 reviews
7.1Entertainment
7.7Boarding
8.1Crew
7.3Comfort
6.6Food
Airline reviews

1. when we went to check in, our 2 first class seats had been CANCELED and the flight was sold out. This was done without our prior knowledge. It was all we could do to restore one first class seat for my wife and I flew economy. 2, Our flight home was scheduled to leave at 10:30 pm. Due to tsunami warnings, the roads were closed and our flight status was uncertain as to whether it would leave as scheduled. It was announced that it would now leave at 11:20 pm and the roads were now open since the tsunami had come and gone. We made a mad dash to the airport and checked in. Delays were announced at 12:30 pm, 1:30 am, 2:30 am and at 3:30 am it was canceled. Since this was a flight due to natural (tsunami) causes, there was no compensation. We were told to return at 1:00 pm the next day and our baggage would be kept on the plane since the same plane was going to leave at 1:00 pm. We had to return to our hotel for the rest of the night. The same plane did not leave at 1:00 pm and our baggage was gone! All in all, it was a miserable performance by UA. Information was hard to obtain and no one knew what was going on and what was going to happen. Hundreds of passengers slept on the floor, chairs, etc. No food and no water was made available to the passengers. It was a situation where UA could care less what was going on. As a one million mile flyer, I had not experienced anything like this before and it was hugely disappointing!

2.0 MediocreGeorge, Aug 2025HNL - SFO
Read more United Airlines reviews

1. when we went to check in, our 2 first class seats had been CANCELED and the flight was sold out. This was done without our prior knowledge. It was all we could do to restore one first class seat for my wife and I flew economy. 2, Our flight home was scheduled to leave at 10:30 pm. Due to tsunami warnings, the roads were closed and our flight status was uncertain as to whether it would leave as scheduled. It was announced that it would now leave at 11:20 pm and the roads were now open since the tsunami had come and gone. We made a mad dash to the airport and checked in. Delays were announced at 12:30 pm, 1:30 am, 2:30 am and at 3:30 am it was canceled. Since this was a flight due to natural (tsunami) causes, there was no compensation. We were told to return at 1:00 pm the next day and our baggage would be kept on the plane since the same plane was going to leave at 1:00 pm. We had to return to our hotel for the rest of the night. The same plane did not leave at 1:00 pm and our baggage was gone! All in all, it was a miserable performance by UA. Information was hard to obtain and no one knew what was going on and what was going to happen. Hundreds of passengers slept on the floor, chairs, etc. No food and no water was made available to the passengers. It was a situation where UA could care less what was going on. As a one million mile flyer, I had not experienced anything like this before and it was hugely disappointing!

I found the staff to not be very attentive at all. When paying for Business Class you expect a certain type of service and that was not found. They were almost rude even

Our experience on United Airlines was extremely poor. The plane was extremely cold throughout our entire flight- which multiple people complained about- and we had to wait 2 hours to get a blanket which was too thin and barely helped warm us up. As well as this, none of the entertainment features were working so we had to sit through a roughly 10 hour flight with nothing to keep our attention, including the actual flight path screen. It was an extremely disappointing experience and I would hope that this gets fixed if we ever choose United Airlines again.

I really enjoyed flying with United airlines amazing experience , good customer service and great food

1.It will be better if sandwich is warm. 2.The food is too salty. 3.Breakfast needs some vegetables or fruits.

Boarded plane and then delayed 1.5 hours while on the plane

It was all good flight was on time, service was good I enjoyed a few movies and everything was smooth

My flight was delayed a very short period of time but they did not hold my connecting flight to San Diego, also through United. So they closed the doors before we got off our plane. They would only have to help the door open for another five to ten minutes. So I missed a court deadline for a manditory mediation settlement conference for my client. I had to get an associate to be there in person and be on the phone with him relaying what he needs to do the entire time. The court was very upset with me and so was my client. United cannot be trusted.

Really good 😊 the woman at the gate entrance was a little rude checking in our carry-on but i dont think she worked for the airline, she worked for the airport at sacramento, other than that amazing.

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.

There is no room, no gluten free options, or any free internet/entertainment. You have to bring your own tablet or smartphone because there are no screens.

American Airlines is a mediocre airlines: they do not maintain the highest standard of cleanliness in the cabins, and the food is not well thought out. Service is not at top of mind compared to other international airlines such as Singapore Airlines, JAL or others.

Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan

Boarding gate in Honolulu was staffed with a great clerk with a soothing voice despite the flight delay of over an hour. Flight attendants in the plane were all grumpy, not pleasant looking bunch. Their sour attitude showed throughout the flight. Inly able to get a select few movies started. Most of the movie links in the “free entertainment” did not work.

I flew Business Class. Rory, one of the Cabin stewards, was attentive, explained the menu, provided appropriate drinks. was

This was a horrible experience. For a first class experience, my chair was held together by 3M tape - and I have a photo. The crew weren’t very attentive, somewhat dismissive and forgot my drink and snack, the chair reclined about 3 inches on a 6-hour cross country flight. I was also not informed that there was no lounge available in Newark airport because of renovations, so all around this was one of the worst experiences and I would actively avoid both American and Alaska Air going forward.

Boarding was very efficient. Everyone got on board and we got on our way very quickly. It was frustrating that the entertainment app was not functioning properly. I was not able to activate some of the movies offered. The crew on this flight appears to be pretty grumpy. They had no smile on their faces. I felt like they were doing us a favor for being there.

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

The space between seats was reduced even further. Could not even open the tray table fully and got compressed the moment the front guy reclined. For a long haul flight it was extremely uncomfortable.

Not satisfying due to loss Luguage for 4days. Damage Luguage that had no way to fill up a report for and me as a client to spend more money and time to replace it. Thank you for soliciting my opinion, but it was unfortunately a very disappointing experience. Stephanie Zvi

My experience with Aer Lingus was nice, and I would be happy to fly with them again. However, my seat pocket had not been cleaned and had dirty wipes in it. I have flown with Aer Lingus before and do not recall anything like that happening, so presumably this was a one-off kind of thing. For the meal, I asked if there was possibly one without my allergens and the flight attendant gave me the one she thought would be fine. She did not know what allergens were in it, but when I received the meal the allergens were all listed right on the top of the package, so I was confused about why she didn’t know how to check what they were. In future, I will see if it’s possible to request an allergen-free meal ahead of time. But overall, I had a pleasant experience. My experience with Underpricer was very unenjoyable and because of them I do not plan to book through Kayak in the future. I have used Kayak numerous times, but this booking experience was so unpleasant. They called me numerous times and also emailed me to try to get me to select a seat. However, when I had a question later on, I was kept on hold for 20/30 minutes before I finally hung up. I also emailed them but never received a response, which I did not appreciate, especially given their previous frequent calls when they wanted something from me.

Delightful flight, ahead of time with a super crew, thanks

I wish Aer Lingus offered free wifi and had power outlets at the seats. Overall, the flight was good. Seat back entertainment had some interesting options. Food and snack options were mediocre at best. I enjoyed the canned red wine.

This was the most expensive economy flight per minute of flight time ever. But the quality was lacking. Extremely Aer Lingus rude staff at LHR said that the flight from London to Dublin (Ireland) was “NOT international.” Horrified at the colonial and imperial perspective. Seats were dirty with trash in seat pockets. Airline doesn’t clean or care about hygiene and safety.

In business class overhead bins were minuscule. Had to use cabin staff to find a place for my carry-on bag. Boarding process was shambolic, as “passengers who needed assistance in boarding” absorbed an excessive amount of time and attention that Aer Lingus was apparently unprepared for.

Aer Lingus was fabulous.nhowever, Aiirfare Assist who Kayak routes me to to purchase tickets for m was awful. They messed up my reservation so bad that after about six hours on the phone with them over the week before departure, I had been choice but to show up at the airport. The Aer Lingus staff were amazing and got it sorted out but I would recommend not using Airfare Assist.

Dublin to Boston was decent. Food and entertainment was included and that was expected for the rate paid.

The Nice airport was a horrible boarding experience. I have never experienced the kind of compressed mob (in the B12-B17 gate area) of people all unclear what was happening and no airport staff to assist. There was no signage and 1000’s of people waiting for any info for 2 hours.

The flight was ok but chargers did not work and the speakers in the back of the cabin did not either. But I am writing because the crew was really, really rude and not only rude but had the curtains always closed, forgot to clear our trays, the bathrooms were filthy and trash was building out, and one of the attendants even had her EARBUDS on while in the cabin. From movement it seemed like she was listening to music, so not even the safety aspect was there. My neighbor s English is not good and they were very dismissive of her. when we deplaned the crew in the back was just chatting with one another and the first class attendant was briefly and said goodnight. It is nice that a crew gets along so well, but they did not take care of passengers at all. They rushed through all the services and otherwise did not go through the cabin to offer water or anything else. i had the feeling of being unwelcome at a party. I am not a grumpy traveller but I thought you really needed to know. Thank you, Carin

Food was terrible. They ran out of options and gave me a bland undercooked pasta and veggies. Only middle seat was available to select although I paid extra. Baggage delayed at destination. Flight attendants not really helpful.

Flight was late arriving. So, we left 25 min late. Pilot made some time up during the flight. Therefore, we arrived alittle past original time.

Crew was great. But my flight was late arriving and as a result, I missed my connecting flight to Richmond. I had to catch a later flight. On a positive note, the attendants at the counter were extremely helpful in booking my later flight. They book my on the next flight to Richmond.

If the plain wait for the passenger it should wait for the baggage!!

The plane (Mitsubishi CRJ) felt old, creaking and not very new. The crew was okay. Hot water provision was broken so hot beverages could't be served.

One one boarding scanner was working to scan 400+ passengers to an Airbus 380. Food in premium economy was mediocre.

Liked the flight being almost on time (airport issues created a delay). Disliked the issue printing tag bags on the kiosk and having to wait for an hour on like to drop my bags.

Our flight was delayed for over an hour due to weather, and it had already been a long travel day. However, the crew was calm and compassionate, listening to every complaint with genuine concern. They got us home safely without incident, in spite of all of the obstacles. I’m grateful.

The flight crew was friendly and accommodating. I witnessed one of the flight attendants deal with a difficult flyer with extreme calm and compassion. I was so annoyed with the passenger and so impressed by the flight attendant. His quick action de-escalated what could have been a major incident. He was awesome.

Checking in prior on line and wait time at Gatwick was terrible. I would rate a big fat ZERO.

There was a slight delay. Otherwise, everything else was satisfactory.

The company that I bought my tickets through, Cheapflightsfares, failed to provide my confirmation information in a timely manner, so I was unable to check on at the country and therefore unable to make my flight. As a matter of fact, I STILL have not received the confirmation. After having read more and more reviews about the company, Cheapflightsfares appears to have scammed hundreds of hopeful travelers out of thousands of dollars. Please look into this company and, for the sake of anyone planning their next trip, stop allowing them to do business through you.

I checked in to bags, one arrived one was delayed. I did not receive the bag for 4 days - arrived on Tuesday, received bag on Saturday!

It was ok. Our flight was delayed 2 hours, and then again on arrival. The explanation given felt feeble.

The plane was known to be late in advance of takeoff. My guess is that it was known to be late at 11am or 5 hours before scheduled takeoff time. We were late to leave and with a wheelchair and the a cart, we only made it to gate. We raced! Inside plane, all was great

The booking agent, cheapflightsfares, messed up, and the information for the seats we paid extra for was not sent to American Airlines. We were separated on the return flight and sent to the lowest economy section. The flight attendant helped arrange seating at the back of the plane to allow my wife and me to sit together.

I liked the comfort of the seats, very attentive crew, and the meals were excellent.

We were kicked off this flight by British Airways due to delays on our connecting flight also operated by British airways and were rebooked on a different carrier which delayed our arrival home by > 26 hours.

Everything about the flight check-in was smooth no line the plane is clean and bathroom

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