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$321+ Cheap flights from San Antonio (SAT) to Belgium

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/21. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — BRU
Mar 23 — Mar 301
Mon 3/23
Mon 3/30
1 adult, Economy
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Cheap flight deals from San Antonio to Belgium

Cheapest flights from San Antonio to Belgium
Explore the most affordable flight options available from San Antonio to Belgium. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 21, 2026.

This United Airlines deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/126:49 am
SAT
-
BRU
1 stop19h 11m
United Airlines
Tue 4/219:25 am
BRU
-
SAT
2 stops36h 46m
United Airlines
Deal found 2/17$489
This United Airlines deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/222:14 pm
SAT
-
BRU
2 stops16h 01m
United Airlines
Wed 4/2912:00 pm
BRU
-
SAT
1 stop15h 40m
United Airlines
Deal found 2/17$505
This KLM deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/128:00 am
SAT
-
BRU
1 stop16h 40m
KLM
Tue 4/219:45 am
BRU
-
SAT
1 stop15h 24m
KLM
Deal found 2/17$509
This United Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/62:14 pm
SAT
-
BRU
2 stops33h 56m
United Airlines
Mon 4/139:40 am
BRU
-
SAT
2 stops34h 28m
United Airlines
Deal found 2/20$629
This oojo deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/191:12 pm
SAT
-
BRU
2 stops18h 13m
British Airways
Mon 10/265:30 pm
BRU
-
SAT
2 stops34h 13m
British Airways
Deal found 2/18$639
This American Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/192:42 pm
SAT
-
BRU
2 stops16h 43m
American Airlines
Mon 10/267:45 pm
BRU
-
SAT
2 stops21h 12m
American Airlines
Deal found 2/21$646
This United Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/56:49 am
SAT
-
BRU
2 stops23h 26m
United Airlines
Sun 4/1212:45 pm
BRU
-
SAT
2 stops38h 03m
United Airlines
Deal found 2/19$670
This United Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/195:00 pm
SAT
-
BRU
1 stop33h 00m
United Airlines
Mon 10/262:25 pm
BRU
-
SAT
2 stops33h 08m
United Airlines
Deal found 2/21$672
This KLM deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/612:34 pm
SAT
-
BRU
1 stop12h 06m
KLM
Mon 4/139:45 am
BRU
-
SAT
1 stop17h 45m
KLM
Deal found 2/20$691
This KLM deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1910:45 am
SAT
-
BRU
1 stop13h 55m
KLM
Mon 10/2610:00 am
BRU
-
SAT
1 stop18h 27m
KLM
Deal found 2/18$697

Find flight deals from San Antonio to Belgium

Keep the following information in mind while searching for San Antonio to Belgium flight deals. Data was last updated February 21, 2026.

Round-trip from

$489
(United Airlines)

One-way from

$321
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$502
From San Antonio to Belgium
Search Deals
One-way flight from San Antonio to Belgium
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($276 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($60 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Antonio to Belgium that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 21, 2026.
Use the filters below to find and compare flights from San Antonio to Belgium that are best for you.

Fly from

San Antonio

Fly to

Belgium

Route

Depart

Return

Price

San AntonioBrussels

SAT - BRU

SATBRU

San Antonio

Mon 3/23

7:30 am-1:15 pm

2 stops23h 45m

Brussels Bruxelles-National

Wed 4/1

12:00 pm-8:42 am

2 stops27h 42m

$573

San AntonioBrussels

SAT - BRU

SATBRU

San Antonio

Mon 3/23

5:00 am-7:50 am

3 stops20h 50m

Brussels Bruxelles-National

Wed 4/1

9:25 am-10:53 pm

2 stops20h 28m

$607

San AntonioBrussels

SAT - BRU

SATBRU

San Antonio

Sun 4/5

6:49 am-1:15 pm

2 stops23h 26m

Brussels Bruxelles-National

Sun 4/12

12:45 pm-7:48 pm

2 stops38h 03m

$670

San AntonioBrussels

SAT - BRU

SATBRU

San Antonio

Mon 4/6

2:02 pm-9:00 am

1 stop11h 58m

Brussels Bruxelles-National

Mon 4/13

10:30 am-9:03 pm

2 stops17h 33m

$699

San AntonioBrussels

SAT - BRU

SATBRU

San Antonio

Thu 7/16

9:00 am-11:00 am

2 stops19h 00m

Brussels Bruxelles-National

Wed 7/22

8:55 pm-9:13 pm

2 stops55h 18m

$839

San AntonioBrussels

SAT - BRU

SATBRU

San Antonio

Sun 4/5

6:45 am-9:25 pm

2 stops31h 40m

Brussels Bruxelles-National

Sun 4/12

7:20 am-10:43 am

3 stops34h 23m

$862

San AntonioBrussels

SAT - BRU

SATBRU

San Antonio

Tue 5/26

5:57 pm-8:00 pm

2 stops19h 03m

Brussels Bruxelles-National

Thu 6/4

9:25 am-12:12 pm

2 stops33h 47m

$864

San AntonioBrussels

SAT - BRU

SATBRU

San Antonio

Sat 3/21

1:22 pm-3:30 pm

3 stops44h 08m

$321

San AntonioBrussels

SAT - BRU

SATBRU

San Antonio

Wed 7/8

2:12 pm-1:15 pm

2 stops16h 03m

$405

San AntonioBrussels

SAT - BRU

SATBRU

San Antonio

Sat 3/21

5:24 pm-7:55 am

1 stop32h 31m

$431

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 14 results
1
2

Best time to book a flight from San Antonio to Belgium

Have a flexible travel schedule? Discover the best time to fly to Belgium from San Antonio with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Antonio to Belgium

What is the cheapest month to book a flight from San Antonio to Belgium?

Currently, February is the cheapest month in which you can book a flight from San Antonio to Belgium (average of $453). Flying from San Antonio to Belgium in July is currently the most expensive (average of $846). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Belgium

Get insights into the airlines that provide service to Belgium. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Belgium. Reviews last updated February 21, 2026.
See what other customers who have flown with United Airlines from San Antonio to Belgium have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,335 reviews

Food

6.6

Entertainment

7.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,335 reviews
United Airlines
7.4
Good
9,335 reviews

Food

6.6

Entertainment

7.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Belgium. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from San Antonio to Belgium?

    San Antonio (SAT), located 7.6 mi from the city center, is the airport you fly out of when you book flights from San Antonio to Belgium.

  • How long is the flight from San Antonio to Belgium?

    United Airlines and KLM can get you from San Antonio to Belgium in just under 16h 40m. Your travel time can differ by up to 2h 31m. San Antonio and Belgium are separated by a distance of 5175 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from San Antonio to Belgium that include hotel bookings?

    Yes. In addition to deals on San Antonio to Belgium flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Antonio to Belgium?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Belgium.

  • Can I find deals for business class flights from San Antonio to Belgium?

    Yes. Cheapflights offers flight deals from San Antonio to Belgium by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Antonio to Belgium?

    Currently, February is the cheapest month in which you can book a flight from San Antonio to Belgium (average of $453). Flying from San Antonio to Belgium in July is currently the most expensive (average of $846). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top airline flying from San Antonio to Belgium

Discover the top airline that operate flights from San Antonio to Belgium. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$603Average$796FlexibilityNo cancel feeOn-time69%

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