Cheap flights from San Antonio, TX to Belfast, United Kingdom
Flights starting at $288. Choose between easyJet, Spirit Airlines, or JetBlue Airways to find the best price.
Make your travel wishlist, we'll do the rest
Hidden deals
Kiwi-Code uncovers prices airlines don't want you to see.
Effortless booking
Use our flexible filters to tailor your search.
Travel hacking
Look out for the travel hack star icon for even cheaper fares.
Tips to know when travelling to Belfast
Search by stops
- Nonstop
- Up to 1 stop
- Up to 2 stops
Search by carrier
Search by price
Search by departure date
Receive exclusive deals by email
By subscribing you agree to receive offers according to the conditions described in our Privacy Policy.
Book your trip to arrive at Belfast International, or George Best Belfast City. The most popular airlines for this route are easyJet, Spirit Airlines, JetBlue Airways, Aer Lingus, and Frontier Airlines. San Antonio and Belfast have 318 direct flights per week. When you arrive at Belfast, consider visiting Bru Na Boinne Neolithic Site (County Meath, Ireland), Trinity College, Dublin, and Giant's Causeway.
Check-in for a flight from San Antonio to Belfast
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
easyJet | EZY | U2 | No | Opens 720 days before flight Closes 2 hours before flight |
Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
JetBlue Airways | JBU | B6 | No | Opens 24 days before flight Closes 2 hours before flight |
Aer Lingus | EIN | EI | No | Opens 48 days before flight Closes 5 hours before flight |
Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
Weather in Belfast
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 6°C | 2°C |
February | 7°C | 3°C |
March | 8°C | 3°C |
April | 11°C | 4°C |
May | 13°C | 7°C |
June | 16°C | 10°C |
July | 17°C | 11°C |
August | 17°C | 11°C |
September | 15°C | 10°C |
October | 12°C | 8°C |
November | 9°C | 5°C |
December | 7°C | 3°C |
14 day forecast
Frequently asked questions
Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.
Explore alternative trips
Flights from San Antonio
- Flights from San Antonio to Las Vegas
- Flights from San Antonio to Mexico City
- Flights from San Antonio to Denver
- Flights from San Antonio to Orlando
- Flights from San Antonio to Guadalajara
- Flights from San Antonio to San Diego
- Flights from San Antonio to Atlanta
- Flights from San Antonio to Phoenix
- Flights from San Antonio to Los Angeles
- Flights from San Antonio to Washington, D.C.
- Flights from San Antonio to Cancún
- Flights from San Antonio to Chicago
- Flights from San Antonio to Raleigh
- Flights from San Antonio to Salt Lake City
- Flights from San Antonio to San José del Cabo
- Flights from San Antonio to Philadelphia
- Flights from San Antonio to New Orleans
- Flights from San Antonio to San Juan
- Flights from San Antonio to Paris
- Flights from San Antonio to New York
Flights to Belfast
- Flights from London to Belfast
- Flights from New York to Belfast
- Flights from San Francisco to Belfast
- Flights from Tel Aviv to Belfast
- Flights from Boston to Belfast
- Flights from Denver to Belfast
- Flights from Los Angeles to Belfast
- Flights from Edinburgh to Belfast
- Flights from Frankfurt to Belfast
- Flights from Paris to Belfast
- Flights from Barcelona to Belfast
- Flights from Dublin to Belfast
- Flights from Miami to Belfast
- Flights from Budapest to Belfast
- Flights from Copenhagen to Belfast
- Flights from Amman to Belfast
- Flights from Madrid to Belfast
- Flights from Bucharest to Belfast
- Flights from Málaga to Belfast
- Flights from Prague to Belfast
Popular routes
- Flights from Los Angeles to Cancún
- Flights from Detroit to Busan
- Flights from Roanoke to Punta Cana
- Flights from Tulsa to Aswan
- Flights from Albuquerque to Freetown
- Flights from Birmingham to Phuket City
- Flights from Los Angeles to Salta
- Flights from Cincinnati to East London
- Flights from New York to Paris
- Flights from Wichita to Cajamarca
- Flights from Huntsville to Kuala Lumpur
- Flights from Phoenix to Chicago
- Flights from Appleton to Providence