Latest deals
Insights
FAQs
Price Alerts

Cheap flights from Belfast to San Antonio from $883

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 9/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Belfast to San Antonio

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
9:50 am - 9:29 pm
BHD
-
SAT
17h 39m
2 stops
Delta Logo
12:05 pm - 9:20 am
SAT
-
BHD
15h 15m
2 stops
$1,923Delta
Mon, Aug 17 - Mon, Aug 24

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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 June 30, 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

Cheapest round-trip
Quickest round-trip

BelfastSan Antonio

BHD - SAT

BHDSAT

Belfast City

Mon 8/17

9:50 am-9:29 pm

2 stops17h 39m

San Antonio

Mon 8/24

12:05 pm-9:20 am

2 stops15h 15m

$1,923
Cheapest one-way
Quickest one-way

BelfastSan Antonio

BHD - SAT

BHDSAT

Belfast City

Tue 9/15

9:40 am-11:55 pm

2 stops20h 15m

$883

BelfastSan Antonio

BHD - SAT

BHDSAT

Belfast City

Tue 9/15

9:40 am-11:55 pm

2 stops20h 15m

$884

BelfastSan Antonio

BHD - SAT

BHDSAT

Belfast City

Tue 9/15

8:25 pm-5:48 pm

2 stops27h 23m

$901

BelfastSan Antonio

BHD - SAT

BHDSAT

Belfast City

Tue 9/15

8:25 pm-5:48 pm

2 stops27h 23m

$917

BelfastSan Antonio

BHD - SAT

BHDSAT

Belfast City

Tue 9/15

8:25 pm-5:48 pm

2 stops27h 23m

$918

BelfastSan Antonio

BHD - SAT

BHDSAT

Belfast City

Tue 9/15

8:25 pm-6:09 pm

3 stops51h 44m

$998

BelfastSan Antonio

BHD - SAT

BHDSAT

Belfast City

Tue 9/15

8:25 pm-6:09 pm

3 stops51h 44m

$1,000

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to San Antonio from

How to get the cheapest flight ticket from Belfast to San Antonio

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Belfast to San Antonio?

British Airways and Aer Lingus are the most popular carriers operating from Belfast to San Antonio

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

17h 39m

Direct flights

None
The fastest flight from Belfast to San Antonio takes 17h 39m
There are no direct flights from Belfast to San Antonio. There are no popular flight routes from Belfast to San Antonio.
Search flight deals

Frequently asked questions about flying from Belfast to San Antonio

  • How far is Belfast to San Antonio by plane?

    The distance between Belfast and San Antonio is about 4681.2 mi. 17h 39m 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.

Traveling to a place near San Antonio?

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

An easier way to manage your San Antonio trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 7/30
Thu 8/6
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States