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Cheap flights from Belfast to San Antonio from $618

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Belfast to San Antonio departing on 4/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Belfast to San Antonio

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
8:45 am - 8:49 pm
BHD
-
SAT
18h 04m
2 stops
British Airways Logo
1:40 pm - 2:15 pm
SAT
-
BHD
19h 35m
2 stops
$1,288British Airways
Fri, Mar 6 - Mon, Mar 9
British Airways Logo
6:45 am - 7:25 pm
BHD
-
SAT
18h 40m
2 stops
British Airways Logo
5:53 pm - 6:35 pm
SAT
-
BHD
19h 42m
2 stops
$1,289British Airways
Fri, Mar 6 - Mon, Mar 9
British Airways Logo
6:45 am - 7:25 pm
BHD
-
SAT
18h 40m
2 stops
British Airways Logo
10:23 am - 10:40 am
SAT
-
BHD
19h 17m
2 stops
$1,291British Airways
Fri, Mar 6 - Mon, Mar 9
British Airways Logo
6:45 am - 8:50 pm
BHD
-
SAT
20h 05m
2 stops
British Airways Logo
5:36 pm - 2:15 pm
SAT
-
BHD
15h 39m
2 stops
$1,293British Airways
Fri, Mar 6 - Mon, Mar 9

British Airways flights from Belfast to San Antonio

Our best British Airways deals on Belfast to San Antonio flight tickets
British Airways
Mar 6
BHD8:45 amBelfast City
18h 04m
2 stops
SAT8:49 pmSan Antonio
Mar 9
SAT1:40 pmSan Antonio
19h 35m
2 stops
BHD2:15 pmBelfast City
$1,288
British Airways
Mar 6
BHD6:45 amBelfast City
18h 40m
2 stops
SAT7:25 pmSan Antonio
Mar 9
SAT5:53 pmSan Antonio
19h 42m
2 stops
BHD6:35 pmBelfast City
$1,289
British Airways
Mar 6
BHD6:45 amBelfast City
18h 40m
2 stops
SAT7:25 pmSan Antonio
Mar 9
SAT10:23 amSan Antonio
19h 17m
2 stops
BHD10:40 amBelfast City
$1,291

momondo Fare Finder

 
Customize your flight search to find flights from Belfast to San Antonio 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, momondo users made 832,500 searches. Data last updated February 11, 2026.
Use the filters below to find and compare flights from Belfast to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastSan Antonio

BHD - SAT

BHDSAT

Belfast City

Fri 3/6

8:45 am-8:49 pm

2 stops18h 04m

San Antonio

Mon 3/9

1:40 pm-2:15 pm

2 stops19h 35m

$1,288

BelfastSan Antonio

BHD - SAT

BHDSAT

Belfast City

Fri 3/6

6:45 am-7:25 pm

2 stops18h 40m

San Antonio

Mon 3/9

5:53 pm-6:35 pm

2 stops19h 42m

$1,289

BelfastSan Antonio

BHD - SAT

BHDSAT

Belfast City

Fri 3/6

6:45 am-7:25 pm

2 stops18h 40m

San Antonio

Mon 3/9

10:23 am-10:40 am

2 stops19h 17m

$1,291

BelfastSan Antonio

BHD - SAT

BHDSAT

Belfast City

Fri 3/6

6:45 am-8:50 pm

2 stops20h 05m

San Antonio

Mon 3/9

5:36 pm-2:15 pm

2 stops15h 39m

$1,293

BelfastSan Antonio

BFS - SAT

BFSSAT

Belfast Intl

Fri 4/3

7:55 pm-9:27 am

3 stops43h 32m

$618

BelfastSan Antonio

BHD - SAT

BHDSAT

Belfast City

Fri 4/3

7:00 am-10:43 am

3 stops33h 43m

$747

BelfastSan Antonio

BFS - SAT

BFSSAT

Belfast Intl

Fri 4/3

7:35 am-12:27 pm

2 stops34h 52m

$752

BelfastSan Antonio

BHD - SAT

BHDSAT

Belfast City

Fri 4/3

7:00 am-12:27 pm

2 stops35h 27m

$809

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Belfast to San Antonio flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Belfast to San Antonio

Fastest flight time

20h 05m

Direct flights

None
The fastest flight from Belfast to San Antonio takes 20h 05m
There are no direct flights from Belfast to San Antonio. There are no popular flight routes from Belfast to San Antonio.
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  • How far is Belfast to San Antonio by plane?

    The distance between Belfast and San Antonio is about 4681.2 mi. 20h 05m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Belfast to San Antonio Airport?

    Prices for flights from Belfast to San Antonio Airport are updated daily.

  • How old do you have to be to fly from Belfast to San Antonio Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Belfast to San Antonio Airport.

  • What documentation or ID do you need to fly to San Antonio Airport?

    The required travel and health documents for your San Antonio Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Antonio Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • How do I get Price Alerts for flights from Belfast to San Antonio?

    Confirm your travel details to search for the latest offers for flights from Belfast to San Antonio. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Belfast to San Antonio with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville
Boerne
Pleasanton
Schertz

Why use momondo?

Why should I use momondo to find a flight deal from Belfast to San Antonio?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Belfast to San Antonio for you.

Can I find flights from Belfast to San Antonio with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Antonio from Belfast with this policy.

How can momondo help me find flights from Belfast to San Antonio?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Belfast to San Antonio.

I’m not ready to book a flight from Belfast to San Antonio right now. Can momondo alert me if prices change?

Price alerts on flights to San Antonio from Belfast are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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