$319 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 8/25. 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, 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

Tue, Apr 21 - Mon, Apr 27
Scandinavian Airlines Logo
4:45 pm - 6:30 pm
SFO
-
BRU
16h 45m
1 stop
Scandinavian Airlines Logo
7:10 pm - 2:40 pm
BRU
-
SFO
28h 30m
1 stop
$651Scandinavian Airlines
Tue, Apr 14 - Fri, Apr 24
Scandinavian Airlines Logo
4:45 pm - 2:35 pm
SFO
-
BRU
12h 50m
1 stop
Scandinavian Airlines Logo
8:30 pm - 2:40 pm
BRU
-
SFO
27h 10m
1 stop
$653Scandinavian Airlines
Tue, Apr 14 - Sun, Apr 19
Scandinavian Airlines Logo
4:45 pm - 2:35 pm
SFO
-
BRU
12h 50m
1 stop
Scandinavian Airlines Logo
8:30 pm - 2:40 pm
BRU
-
SFO
27h 10m
1 stop
$654Scandinavian Airlines
Tue, Apr 14 - Tue, Apr 21
Scandinavian Airlines Logo
4:45 pm - 2:35 pm
SFO
-
BRU
12h 50m
1 stop
Scandinavian Airlines Logo
10:20 am - 2:40 pm
BRU
-
SFO
13h 20m
1 stop
$655Scandinavian Airlines
Mon, Apr 20 - Mon, Apr 27
Scandinavian Airlines Logo
4:45 pm - 9:40 am
SFO
-
BRU
31h 55m
1 stop
Scandinavian Airlines Logo
9:10 pm - 2:40 pm
BRU
-
SFO
26h 30m
2 stops
$656Scandinavian Airlines
Mon, Apr 6 - Sun, Apr 19
Scandinavian Airlines Logo
4:45 pm - 6:30 pm
SFO
-
BRU
16h 45m
1 stop
Scandinavian Airlines Logo
12:40 pm - 2:40 pm
BRU
-
SFO
35h 00m
2 stops
$657Scandinavian Airlines
Mon, Apr 6 - Tue, Apr 21
Turkish Airlines Logo
6:45 pm - 9:25 pm
SFO
-
BRU
17h 40m
1 stop
Turkish Airlines Logo
7:20 am - 4:40 pm
BRU
-
SFO
18h 20m
1 stop
$662Turkish Airlines
Mon, Apr 6 - Thu, Apr 23
Turkish Airlines Logo
12:55 pm - 5:55 pm
SFO
-
BRU
20h 00m
1 stop
Turkish Airlines Logo
6:55 pm - 10:50 am
BRU
-
SFO
24h 55m
1 stop
$663Turkish Airlines
Mon, Apr 13 - Wed, Apr 22
Turkish Airlines Logo
6:45 pm - 9:25 pm
SFO
-
BRU
17h 40m
1 stop
Turkish Airlines Logo
7:20 am - 4:40 pm
BRU
-
SFO
18h 20m
1 stop
$664Turkish Airlines
Mon, Apr 6 - Tue, Apr 21
Multiple Airlines Logo
12:55 pm - 6:05 pm
SFO
-
CRL
20h 10m
2 stops
Multiple Airlines Logo
2:30 pm - 4:40 pm
CRL
-
SFO
35h 10m
2 stops
$739Multiple 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 $1,115 and $1,009 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 26% 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$319
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 10% 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 9493 reviews
7.3Comfort
8.1Crew
7.1Entertainment
6.6Food
7.7Boarding
Airline reviews

They delayed the flight from 9:00 to 11:55 At 11:45 they canceled the flight. I paid a premium price for the tickets with poor service

2.0 MediocreDale, Mar 2026
SFO - TPA
Read more United Airlines reviews

They delayed the flight from 9:00 to 11:55 At 11:45 they canceled the flight. I paid a premium price for the tickets with poor service

The 777’s economy seat’s legroom was more tolerable than expected. I appreciate the reclining mechanism which slides the seat forward to minimize cannibalizing the space behind. The food was terrible: very salty.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

We had turbulence ever 1/2 hr or so and the captains announcements were SOOOO LOUD

it was a very short flight so my expectations were low.

Entertainment kept turning itself off. Gave up on watching a movie.

Very disappointing given gate agent behavior. Filed a formal complaint with United.

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

Crew members were excellent. The seat wasn’t the best as well as a food options.

5 of my 7 pieces of luggage are missing and they cant call to find out where it is. I have to fill out a form and wait for them to mail it to me in several days (if they find it). That does not work for my travel itinerary. I need my full ticket cost refunded please.

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 flew economy class. Seats were very good and the crew was excellent

Punctual, smooth flight. Crew excellent and cabin very clean. Paid for WiFi but once you close out you cannot get back in even if you paid for entire flight.

Flight crew was superb. Meal was one of the meals at altitude I’ve had

Like getting a bus. No great luxury but will get you there

Canceled my flight couple hours before takeoff. They could not find a decent re-routing and refused to pay for when i subjected alternative with Lufthansa.

Seats a little to soft on the SFO DUB flight

I was not admitted to the flight!!! I need a refund for this

Well, I think we left close to on time. Crew was “eh”.

Flight takeoff was delayed an hour, but arrival time was not updated at the same time as departure time, so those picking me up at the other end were not alerted to the change in my arrival.

Seats are terribly cramped. I’m only 5’2” and my knees were practically in my face. No room to put a normal size bag under the seat and when the person in front of you reclined their seat your tray table was in your lap. This is the airline’s way of cramming more seats into the plane to make more money. I’ll think twice about taking Aer Lingus again since there are a few other options from Boston to the Emerald Isle.

Spacious and clean aircraft. Good food. Economy will always be squeezed but thankfully I had an aisle seat for stretching exercises. Good selection of movies, particularly Spike Lee joint.

Unfriendly, 8 hours delayed, no lounge access even flying business. Don’t fly Brussels

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

Lufthansa cancelled our flight from Los Angeles to Naples Italy on March 10 for scheduled flight on March 12 Very stressful experience trying to arrange alternatives. Will never fly again with Lufthansa

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.

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

Information on your arrival and departure airports