$229 Find Cheap Flights from San Francisco to Belgium

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Belgium departing on 5/11. 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, 0 bags

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Book Cheap San Francisco to Belgium Plane Tickets

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

Sat, Mar 28 - Wed, Apr 1
Scandinavian Airlines Logo
5:40 pm - 1:35 pm
SFO
-
BRU
35h 55m
1 stop
Scandinavian Airlines Logo
9:10 pm - 2:40 pm
BRU
-
SFO
26h 30m
2 stops
$486Scandinavian Airlines
Sun, Mar 8 - Sun, Mar 15
Scandinavian Airlines Logo
5:40 pm - 2:30 pm
SFO
-
BRU
12h 50m
1 stop
Scandinavian Airlines Logo
10:20 am - 3:35 pm
BRU
-
SFO
13h 15m
1 stop
$490Scandinavian Airlines
Tue, Mar 10 - Tue, Mar 17
Scandinavian Airlines Logo
5:40 pm - 2:30 pm
SFO
-
BRU
12h 50m
1 stop
Scandinavian Airlines Logo
10:20 am - 3:35 pm
BRU
-
SFO
13h 15m
1 stop
$492Scandinavian Airlines
Mon, Mar 23 - Wed, Apr 8
Scandinavian Airlines Logo
5:40 pm - 2:30 pm
SFO
-
BRU
12h 50m
1 stop
Scandinavian Airlines Logo
3:15 pm - 2:40 pm
BRU
-
SFO
32h 25m
1 stop
$493Scandinavian Airlines
Mon, Mar 23 - Wed, Apr 8
Scandinavian Airlines Logo
5:40 pm - 2:30 pm
SFO
-
BRU
12h 50m
1 stop
Scandinavian Airlines Logo
11:20 am - 2:40 pm
BRU
-
SFO
36h 20m
2 stops
$495Scandinavian Airlines
Tue, Mar 3 - Fri, Mar 6
Scandinavian Airlines Logo
4:40 pm - 2:30 pm
SFO
-
BRU
12h 50m
1 stop
Scandinavian Airlines Logo
8:30 pm - 2:35 pm
BRU
-
SFO
27h 05m
1 stop
$496Scandinavian Airlines
Mon, Mar 23 - Wed, Apr 8
Scandinavian Airlines Logo
5:40 pm - 6:35 pm
SFO
-
BRU
16h 55m
1 stop
Scandinavian Airlines Logo
11:20 am - 2:40 pm
BRU
-
SFO
36h 20m
2 stops
$498Scandinavian Airlines
Mon, Mar 23 - Wed, Apr 8
Scandinavian Airlines Logo
5:40 pm - 6:35 pm
SFO
-
BRU
16h 55m
1 stop
Scandinavian Airlines Logo
11:20 am - 2:40 pm
BRU
-
SFO
36h 20m
2 stops
$499Scandinavian Airlines
Sun, Apr 12 - Mon, Apr 27
Multiple Airlines Logo
7:40 pm - 9:00 pm
SFO
-
CRL
16h 20m
1 stop
Multiple Airlines Logo
10:00 pm - 12:45 pm
CRL
-
SFO
47h 45m
2 stops
$650Multiple Airlines
Mon, Mar 9 - Mon, Mar 16
Multiple Airlines Logo
5:40 pm - 7:00 pm
SFO
-
CRL
17h 20m
2 stops
Multiple Airlines Logo
12:50 pm - 3:35 pm
CRL
-
SFO
34h 45m
2 stops
$651Multiple Airlines
Booking Insights

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to Belgium, 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 San Francisco to Belgium is February, when tickets cost $530 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,128 and $1,026 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Francisco to Belgium, 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 San Francisco to Belgium, you should book around 4 weeks before departure, which saves you about 22% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$229
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 9% increase in price.
Flight from San Francisco to Brussels Airport

FAQs - booking Belgium flights

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

    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 San Francisco to Belgium.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Francisco to Belgium 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 San Francisco to Belgium?

    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 from San Francisco to Belgium with an airline and back with another airline.

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

    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 from San Francisco to Belgium 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 San Francisco to Belgium

 
Need help choosing which airline to fly with from San Francisco to Belgium? 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 9274 reviews
6.6Food
7.7Boarding
8.1Crew
7.1Entertainment
7.3Comfort
Airline reviews

Terrible. No customer service, no food, no drinks on a 6 hour premier economy booking.

2.0 MediocreAnonymous, Feb 2026
SFO - RDU
Read more United Airlines reviews

Terrible. No customer service, no food, no drinks on a 6 hour premier economy booking.

The flight crew where really good. Better then the crew from BNE to SFO

Food should be changed in menu Many muslims travels in this airlime they need to add one Halal meal

left on time, reasonable boarding process arrived early luggage came out quickly

Some flight attendants were great others were cranky. Seats were very tight and sitting on an aisle was very hard as the carts and people walking constantly bumped shoulder and arm.

Pushed back only to get deplaned due to a tire damaged by ground crew. They did at least go pretty fast. The bathrooms should be banned under the Geneva convention. No room to even sit straight on the toilet. The under-seat entertainment units block what little leg room there is.

United airlines has the best customer experience from booking to arrival. I always fly United airlines. The mileage program is excellent

from SFO-> FRA flight, AVML meal was significantly less compared to regular meal, especially no Desert, no Bread, no sides.

This was an older airplane. The cabin was constantly warm to hot throughout the 10 hour flight and there were no vents to personalize air flow. Also since it was an older plane, the material and comfort of the chairs were very uncomfortable. I left my flight with major soreness on my tailbone.

Older aircraft, no meal, only food was for purchase. Not impressed United.

Fantastic. The only thing - out of my six luggage one was lost in Copenhagen, however it was delivered Home 3 Days later so all great..

The crew was friendly, the flight was pleasant. Thank you for your service!

Our trip plan from Kayak stated we were flying SAS. That was not true. The first leg was a Delta flight. We wasted 25 minutes before finding out to check in with the correct airline. Then our SAS flight for the second leg arrived 25 minutes late, and our third leg flight with SAS closed the gate knowing the flight delay was SAS’s fault, and that this flight would only be backed up 5 minutes. The final kicker was that between Delta and SAS, they lost all our checked luggage.

Flight was completely full January 9th? I problem i had the stewardess was bumping into me constantly walking by? very annoying.. on Austrian air I dint have this issue at all...

Amazing! Everyone was so nice and the food was so good!!

Terrible customer service. The flight attendants were rude. We experienced significant turbulence for a large portion of the flight and there was very little check in from the flight deck. The space was extremely limited to the point where it felt like torture. Never again

I was surprised how good an American airline can be - I was really impressed.

Excellent service throughout. Airport process is quick and easy. Very courteous staff. Great service in the plane! Just outstanding punctuality and service overall!!

I have paid for extra legroom on my flight. My seat was broken and did not recline. The crew could not fix it and refused to provide me with another seat

Over all experience was good. However the connection time was too short at CPG. We missed our connecting flight to AMS as the passport control line was too long and by the time we got our passport control done it was too late I wish there were some SAS staff to help us out at the passport control center Though they put us in a KLM flight from CPG to AMS, That flight was also delayed by over two hours

Flight from London was delayed so missed the connecting flight. Taking 2 days to get to destination which should have only taken a few hours.

Too cramped up for the better seats I paid for.

I didn’t like my seat in my return flight from Montreal to Orlando at all; considering I paid extra for better seats. That middle seat was cramped up way too much.

Suitcase didn’t arrive to Stockholm. Chairs y comfy and not even water is offered

Bad baggage and people management at boarding forcing me to dispatch my bad despite being the perfect size and respecting everything perfectly, whereas many did not and many free empty spots on the plane as usual… making me loose time and my planned bus at arrival to go to Geneva. Costing me 100 euros extra! So Brussels airlines needs to refund me

I never board the flight. My visa was delayed and when I tried calling Kayak, no one answer and I still have not heard from anyone.

All great. Very efficient. Good emails that kept us in the know

Original flight was canceled, booked another one and find out when checking I was on the waiting list. Horrible experience

Actually this is my first time using airline I was in every single thing that happened throughout our journey, the appearance of the plane inside furnished about the seating the flight attendants and many many more I was so excited throughout thank you Brussels Airlines for the great service.

On board service was decent. I like the legroom at UA that seems to be more than in other airlines

The flight left late and I didn’t get a glass of bubbly upon boarding (which I’m used to when booking business class on other flights), but otherwise it was a pleasant flight with lovely, helpful crew members and I enjoyed my meal.

Couldn't fit knees, only 1 toilet working, didn't get anything to drink cause the stewards were not able to get to us

Flight was canceled for a reason they knew hours before but did not mention. Next the gate chnage from 37 to 38 at least 10 times. Ridiculous.

The flight from SFO to YVR was delayed and my bag did not make it to my next flight from YVR to SYD. It took almost 3 days after I landed to get my bag and when I got it, it was filled with dust

Great check in process in LA and good service The check in process as well as at the gate is way better in the US versus canada 🇨🇦

All attendents were very efficient, pleasant and happy. Everything went smoothly. The seats could have been wider. There could have been more free food instead of just one small bar.

I liked a lot , the flight attendant so nice ,the seat very comfortable I enjoyed the flight , I will do it again with Air Canada,

It was a smooth flight both in the sky and landing!

The crew was really nice. The plane seats were kinda small even for a 5’6” / 158 lbs person.

Fare was great, seat comfort the opposite as cushion was worn out. Ok for 2 hour flight, not for 4.5 hour flight..

Service and food were excellent. Incredibly friendly and competent staff. Flight was delayed over and hour and I had to run between terminals to get my connecting flight.

Late flight Delays Poor service Poor staff Worst airline ever

Lufthansa still has a good level of quality compared to US airlines, especially with respect to (1) food quality - actually tasty, (2) good French red wine - free, (3) good movie selection. Also my ticket price includes 1 free check-in luggage, while some other budget airlines sneak in an extra $150 for a checkin.

The food could be better, more snacks. And have some plugs to chargue the phone.

Everything was really great just The aircraft was too old and sounded it will break during takeoff

Extremely pleased with the crew. Best flight attendants ever! Very friendly, genuinely caring and attentive.

Best flight attendants ever! Very customer and service oriented, courteous, professional and helpful.

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

Very small and uncomfortable seats, Hard to hear entertainment system sound. Horrible food. Staff doesn't care much about the passengers. 2nd time they didn't give me my vegetarian meal. They asked me regular food with meat. The airline and staff was from United airlines.

Checkin took along timen only.few angents available at.checkin desk. Customer support over phone no existence

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

Information on your arrival and departure airports