Cheap flights from Ontario, CA to Belfast, United Kingdom
Flights starting at $315. Choose between easyJet, JetBlue Airways, or Virgin Atlantic 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
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, JetBlue Airways, Virgin Atlantic Airways, British Airways, and Frontier Airlines. Ontario and Belfast have 293 direct flights per week. When you arrive at Belfast, consider visiting Trinity College, Dublin, Bru Na Boinne Neolithic Site (County Meath, Ireland), and Giant's Causeway.
Check-in for a flight from Ontario 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 |
JetBlue Airways | JBU | B6 | No | Opens 24 days before flight Closes 2 hours before flight |
Virgin Atlantic Airways | VIR | VS | Yes | 0 0 |
British Airways | BAW | BA | No | 0 0 |
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 Ontario
- Flights from Ontario to Denver
- Flights from Ontario to Orlando
- Flights from Ontario to Austin
- Flights from Ontario to Las Vegas
- Flights from Ontario to Atlanta
- Flights from Ontario to Sacramento
- Flights from Ontario to San Francisco
- Flights from Ontario to Seattle
- Flights from Ontario to San Antonio
- Flights from Ontario to Guadalajara
- Flights from Ontario to Charlotte
- Flights from Ontario to New Orleans
- Flights from Ontario to Fort Lauderdale
- Flights from Ontario to Philadelphia
- Flights from Ontario to Washington, D.C.
- Flights from Ontario to Oakland
- Flights from Ontario to San Jose
- Flights from Ontario to Detroit
- Flights from Ontario to Minneapolis
- Flights from Ontario to Chicago
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 Midland to Port Moresby
- Flights from Phoenix to Medan
- Flights from Concord to Abu Dhabi
- Flights from New York to Istanbul
- Flights from Kansas City to N Djamena
- Flights from Indianapolis to Florencia
- Flights from San Jose to Ibiza
- Flights from Myrtle Beach to Reynosa
- Flights from Lafayette to Puerto Vallarta
- Flights from Stockton to Madison
- Flights from Philadelphia to Orlando
- Flights from Orlando to New York
- Flights from Peoria to Tenerife