$428 Find Cheap Flights from Belgium to San Diego

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to San Diego departing on 1/17. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results for flights to San Diego, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to San Diego, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$687
Typical prices: $594-$743
Scandinavian Airlines
Sun 2/1Wed 2/11
BRU - SAN • 2 stops
Cheapest one-way
$428
Multiple Airlines
Sat 1/17
CRL - SAN • 3 stops
When to travel
January
Cheapest • 22% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to San Diego!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Belgium to San Diego

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

Sun, Feb 1 - Wed, Feb 11
Scandinavian Airlines Logo
3:10 pm - 10:47 pmBRU-SAN
40h 37m2 stops
Scandinavian Airlines Logo
3:45 pm - 7:50 pmSAN-BRU
19h 05m2 stops
$687Scandinavian Airlines
Find Deal
Tue, Feb 3 - Wed, Feb 18
Scandinavian Airlines Logo
8:30 pm - 10:47 pmBRU-SAN
35h 17m2 stops
Scandinavian Airlines Logo
3:44 pm - 6:35 pmSAN-BRU
17h 51m2 stops
$689Scandinavian Airlines
Find Deal
Tue, Jan 13 - Tue, Feb 3
Scandinavian Airlines Logo
10:20 am - 10:47 pmBRU-SAN
21h 27m2 stops
Scandinavian Airlines Logo
3:45 pm - 7:50 pmSAN-BRU
19h 05m2 stops
$705Scandinavian Airlines
Find Deal
Sun, Feb 1 - Wed, Feb 11
Multiple Airlines Logo
2:25 pm - 12:15 amBRU-SAN
18h 50m2 stops
Multiple Airlines Logo
10:52 am - 8:55 amSAN-BRU
13h 03m1 stop
$802Multiple Airlines
Find Deal
Thu, Jan 22 - Sun, Jan 25
British Airways Logo
10:15 am - 4:10 pmBRU-SAN
14h 55m1 stop
British Airways Logo
6:00 pm - 7:55 pmSAN-BRU
16h 55m1 stop
$803British Airways
Find Deal
Thu, Jan 22 - Sun, Jan 25
British Airways Logo
10:15 am - 9:58 pmBRU-SAN
20h 43m2 stops
British Airways Logo
9:21 am - 10:50 amSAN-BRU
16h 29m2 stops
$809British Airways
Find Deal
Tue, Feb 3 - Wed, Feb 18
American Airlines Logo
5:30 pm - 4:10 pmBRU-SAN
31h 40m1 stop
American Airlines Logo
6:00 pm - 4:20 pmSAN-BRU
13h 20m1 stop
$810American Airlines
Find Deal
Fri, Jan 30 - Tue, Feb 17
American Airlines Logo
9:50 am - 4:10 pmBRU-SAN
15h 20m1 stop
American Airlines Logo
7:02 am - 10:50 amSAN-BRU
18h 48m2 stops
$812American Airlines
Find Deal
Thu, Jan 8 - Mon, Jan 19
United Airlines Logo
10:30 am - 10:33 pmBRU-SAN
21h 03m2 stops
United Airlines Logo
11:10 am - 1:15 pmSAN-BRU
17h 05m2 stops
$813United Airlines
Find Deal
Thu, Dec 18 - Sun, Dec 21
Multiple Airlines Logo
9:35 pm - 3:45 pmCRL-SAN
27h 10m2 stops
Multiple Airlines Logo
5:35 pm - 10:20 pmSAN-CRL
19h 45m2 stops
$2,987Multiple Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for flights to San Diego

Get data-powered insights and trends for flights to San Diego to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly to San Diego?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to San Diego, 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 to San Diego is January, where tickets cost $607 on average for one-way flights. On the other hand, the most expensive months are August and December, where the average cost of tickets from Belgium is $1,077 and $982 respectively. For return trips, the best month to travel is January with an average price of $607.

How far in advance should I book a flight to San Diego?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to San Diego, 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, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 36 days before departure.

Good to know

Low seasonNovember
Cheapest flight$428
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from Charleroi Brussels to San Diego

FAQs - booking San Diego flights

  • How far is San Diego Airport from central San Diego?

    You’ll need to travel 3 miles to reach the San Diego city center from San Diego Airport.

  • What is the name of San Diego’s airport?

    When flying to San Diego, you'll arrive at San Diego Airport (SAN). The airport is also known as Lindbergh Field, San Diego, or San Diego Intl.

  • What is the cheapest day to fly to San Diego?

    Based on KAYAK data, the cheapest day to fly to San Diego is Friday where tickets can be as cheap as $730. On the other hand, the most expensive day to fly is Sunday, where prices are $967 on average.

  • How does KAYAK find such low prices on flights to San Diego?

    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 to San Diego.

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

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

  • What is the Hacker Fare option on flights to San Diego?

    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 Diego 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 to San Diego?

    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 Diego up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to San Diego?

    The cheapest time of day to fly to San Diego is generally in the morning, when flights cost $843 on average. The most expensive time of day to fly to San Diego is generally at night, which is peak travel time and where the average cost of a ticket is $954.

  • How many direct flights to San Diego are there each week?

    Each week there are around 2,921 direct flights from within Belgium to San Diego. The most common day for departures is Monday, with 16% of flights taking off on this day.

Top tips for finding cheap flights to San Diego

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest San Diego flight deals.

Reviews of the top 4 airlines serving from Belgium to San Diego

 
See real verified KAYAK customer reviews for airlines flying to San Diego. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Belgium to San Diego. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to San Diego? 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.
7.7
KLMOverall score based on 1411 reviews
7.1Entertainment
7.7Comfort
7.8Boarding
8.4Crew
7.3Food
Airline reviews

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

4.0 OkayMarcel, Oct 2025JFK - AMS
Read more KLM reviews

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

The service was great. However the lounge only gets passing grade

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

You should not have to pay for WiFi in business class

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

The flight attendants were very rude, beyond comprehension. I took a business class from London to SFO for the first time on United. When I asked for a second piece of bread during dinner, the serving attendant threw a 3rd bread on my plate and said, “here. You can have this one too”! I couldn’t believe the rudeness of the attendant. Most all attendants were very rude, unhelpful, sing the food was absolutely disgusting. Never fly United internationally in business class. My flight back to SFO was a nightmare!!

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Flight from Rome to SFO was excellent compared To our flight to Europe from SFO. The food was much tastier. You can see how UNITED is skimping, though. Instead of getting something mid flight you had to ask for it. It was not automatically served. There was a cookie at the end of the arrival meal, for example that tasted like it just came out of a box. They used to serve a little container of nuts, now … a tiny container of nuts, mixed with pretzels. This was business class that you really have to pay for! But this is minor complaints compared to the overall. My major complaint is the position of the even numbered seats by the windows. You have to turn around to see your window & the positioning as some other controls are harder to get at. This is compared to the odd number seat that are perfectly aligned.

The food quality sucks. One must starve if they do not eat flesh Or wheat based products Some variety would be expected. The trivial amount of snacks and or food is inhumane

Flight was timely, relatively comfortable, with decent entertainment and food served. Only problem encountered was with the free messaging which I highly appreciate, but it did not work from iphone to non-iphones.

The internet service I paid for didn’t work at all and the flight crew was not very friendly.

Subject: Formal Complaint: Discriminatory and Unprofessional Conduct – Request for Immediate Action & Compensation Dear [Airline Customer Relations Team], I am writing to file a formal complaint regarding my recent travel experience with [Airline], which was by far the worst I have ever encountered. What occurred was not only unprofessional, but in several instances discriminatory, unsafe, and unacceptable. On the first leg of my trip, I arrived only four minutes past check-in. Instead of making any attempt to resolve the matter, your representative flatly denied me boarding and made me wait while she attended to passengers who arrived after me. By the time a manager intervened, it was too late to board, costing me time, money, and unnecessary frustration. The second leg of my trip (Chicago–San Francisco) raised even more serious concerns. From the outset, it was apparent that the staff—particularly two attendants—prioritized Caucasian passengers while dismissing African American and minority passengers. • When a Caucasian passenger in the exit row refused to comply with federal safety requirements, I, as a first responder, immediately offered to switch seats and assume the responsibility. My offer was blatantly ignored, and instead, a Caucasian passenger seated further up was chosen. This was discriminatory and deeply insulting, especially as I was actively de-escalating the situation that could have delayed the flight further. • During a lengthy tarmac delay of over 90 minutes, passengers were given conflicting and unreasonable instructions that created unnecessary distress and tension. • Throughout the flight, a visibly intoxicated passenger directly in front of me was disruptive, rude to others, failed to comply with seatbelt and electronic device rules, and yet faced no enforcement from the crew. In stark contrast, I was singled out for repeated compliance checks even though I was following every rule. This unequal treatment was so obvious that multiple passengers around me spoke up in my defense. This pattern of behavior demonstrated a clear lack of professionalism, disregard for passenger safety, and discriminatory treatment. I expect far better from an airline of your stature. As a paying customer subjected to this unacceptable treatment, I am formally requesting: 1. A full investigation into the conduct of the staff on both flights. 2. A written apology acknowledging the discriminatory and unprofessional behavior I endured. 3. Appropriate compensation for the distress, inconvenience, and mishandling of my travel. If this matter is not addressed promptly and thoroughly, I will have no choice but to escalate my complaint further, including filing with the U.S. Department of Transportation and sharing my experience through other channels. I trust [Airline] will take this complaint seriously and provide a timely resolution.

Check in was quick and easy during early hours. Flight was on time, and customer services was a plus.

Airline food is airline food, but the plane was wonderful and the seating comfort outstanding. One of my best flights in quite a while.

Crew was outstanding, helpful and friendly. Food is deteriorating. The snack at the end of the flight was not good, a greasy moosh of toast cheese snd other unidentifiable ingredients. Coming from Germany a pretzl with butter would have been better. Entertainment had a great selection.

Smooth flight with enough time for connection. Ran out of meal options. In-flight and gate staff were friendly and helpful. Good service overall.

The seat space seemed small especially when the person ahead reclined but other than that, very good.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

Give yourself over 2+ hours layover because if flight is slighlty delayed and you miss your connection, Lufthansa will do nothing for you

We would have missed our connection from Munich to Boston but we had a van outside the plan that wisked us to our terminal. Much appreciated and we didn’t even realize that Lufthansa had done this until the announcement on disembarkation. Well organized airline! Will definitely fly Lufthansa again!!!

Everything went well. I will fly with Lufthansa again. And use Kayak whenever I book flights

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

It was good. Couldn’t Check in online and select seats

It was great. Enough space and room for legs . Great service to.

⭐ British Airways Review — A Journey of Highs, Lows, and Lessons ⭐ I recently flew Business Class round-trip from Boston to Mumbai with British Airways, and my experience was a tale of two extremes — from disappointment to exceptional service, and then back to inconsistency. Boston → London: A Surprisingly Poor Start My journey began on a disappointing note. On a 6-hour Business Class flight, I was surprised to discover that there wasn’t a single proper vegetarian meal option available. I was offered a few bakery items only after repeatedly requesting something to eat. The flight attendant shrugged, offered no solution, and eventually — quite literally — threw some bread at me after much delay. This was not only disheartening, it was extremely surprising given my wonderful Business Class experience with BA last year. I stepped off that flight genuinely hungry and had to make a mad dash to the lounge just to get a proper meal. London → Mumbai: A Complete Turnaround The next sector restored my faith in British Airways. The entire crew was warm, welcoming, attentive, and genuinely caring. A special shoutout to Phiroze and the entire team serving the Business Class cabin — their professionalism, hospitality, and thoughtful service were extraordinary. They truly embodied what makes British Airways a global leader, and I am deeply grateful for the experience they provided. This is the BA I know and love. Mumbai → London: A Strange Meal Schedule This sector was generally fine, but the meal timing was puzzling. Lunch at 10:30 AM — for a Business cabin — felt unusual, and most passengers, including myself, barely touched it. The rest of the service was smooth, but the scheduling definitely needs a rethink. London → Boston: Mixed Experience Again The flight itself was decent, but the Business Lounge at Heathrow for this leg was a letdown. Arrived during lunch hours: no hot vegetarian options available Lounge area: dirty dishes everywhere Even after politely alerting the staff, the dishes were ignored and left uncleared For a premium cabin passenger — and at one of the world’s busiest international hubs — this was disappointing. Overall Impression My journey with British Airways felt inconsistent — two great sectors sandwiched between two that fell short of the BA standard. When BA is good, it is world-class. When it misses, the gap is noticeable. I genuinely hope the airline takes this feedback as constructive insight. I continue to believe in British Airways, and I commend the outstanding crew on the London → Mumbai sector — they were the highlight of my entire trip. With a little more focus on vegetarian meal availability, lounge service, and consistency across crews, BA can ensure every Business Class passenger experiences the premium journey they promise.

We were in business class and I had seat # 1. This was a night flight and after dinner was served, lights were dimmed and I went to sleep. The crew were loud and noisy so I didn’t get much sleep. I expect the crew to enjoy themselves but would Appreciate some decency in staying quiet while the passengers sleep

Have travelled business class with other airlines who profess to be the best in the world. They can however not beat the service and comfort that BA provide.

Well unfortunately our connecting was cancelled and next flight delayed. Was in airport 9 hours. Flight itself was good. I’m sure it was a FAA problem.

Great on board entertainment Tasty food Cattle class obviously crammed but not as bad as shorter hall flights

I was attacked in the Miami airport and the staff did nothing. On my flight from London to Miami one of the flight attendants screamed at me and demanded I keep my seat in the upright position at all times during the fight so the man behind me was comfortable for the flight. I will never in my life use British airways again

Logan gate staff was unhelpful. Arrived early, come to find out the airbus scheduled was reassigned and I did not have a seat. The desk agent spoke to his supervisor who instructed him to give me a boarding pass to get up to gate area, he was polite. At the gate the fellow was sitting to the side with two other BA staff . I asked him if he could help me, his answer was” we are on a break, we are closed” then turned his back. I am almost 70, drove 4 1/2 hours to Boston and had been looking forward to this trip for 5 months. I have worked in service many times in my life and this is not how it is done. I eventually (1/2 hr) before boarding was able to get a seat. The rest of the flight experience was unremarkable.

The boarding process was chaotic at LHR and the seat was not as comfortable as other airlines....

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