Cheap flights from California to Northern Ireland from £262
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 17/2. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from California to Northern Ireland
Discover tips and strategies to find the most affordable flight options for your journey from California (USCA) to Northern Ireland (GBNIR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 21 January 2025.
Find flight deals from California to Northern Ireland
Cheapest flights from California to Northern IrelandExplore the most affordable flight options available from California to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 January 2025.
Explore the most affordable flight options available from California to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 January 2025.
Find flights from California to Northern Ireland within your budget
Customise your flight search to find flights from California to Northern Ireland 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 858,174 searches. Data last updated 21 January 2025.
Fly from
Fly to
Route
Depart
Return
Price
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Wed 5/2
20:40-20:15
1 stop15h 35m
Belfast City
Wed 12/2
06:35-15:00
1 stop16h 25m
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Tue 18/2
08:08-10:30
2 stops18h 22m
Belfast City
Tue 25/2
08:40-18:45
1 stop18h 05m
Los AngelesBelfast
LAX - BHD
LAXBHD
Los Angeles
Wed 19/2
20:55-19:10
1 stop14h 15m
Belfast City
Tue 25/2
09:55-15:50
1 stop13h 55m
Los AngelesBelfast
LAX - BHD
LAXBHD
Los Angeles
Wed 19/2
09:30-10:05
2 stops16h 35m
Belfast City
Tue 25/2
09:55-20:15
1 stop18h 20m
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Tue 18/3
18:30-18:40
1 stop17h 10m
Belfast City
Sun 30/3
06:50-13:50
1 stop15h 00m
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Sun 30/3
13:45-16:55
1 stop19h 10m
Belfast City
Tue 15/4
06:30-19:24
2 stops20h 54m
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Mon 31/3
13:45-16:55
2 stops19h 10m
Belfast City
Tue 15/4
06:30-19:24
2 stops20h 54m
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Mon 17/3
11:09-16:50
2 stops22h 41m
Belfast City
Thu 27/3
06:30-12:50
1 stop13h 20m
Los AngelesBelfast
LAX - BHD
LAXBHD
Los Angeles
Thu 20/2
17:35-18:50
1 stop17h 15m
Belfast City
Sun 23/2
06:30-18:25
1 stop19h 55m
OntarioBelfast
ONT - BHD
ONTBHD
Ontario
Tue 18/3
16:30-16:45
2 stops17h 15m
Belfast City
Sun 23/3
17:10-19:01
2 stops32h 51m
Best time to book a flight from California to Northern Ireland
Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from California with our price prediction graph.
Travel insights for flights from California to Northern Ireland
Get recent, data-driven insights about flights from California to Northern Ireland including ideal travel times, pricing trends, and more.
What is the cheapest month to book a flight from California to Northern Ireland?
Currently, January is the cheapest month in which you can book a flight from California to Northern Ireland (average of £67). Flying from California to Northern Ireland in July is currently the most expensive (average of £90). 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.
What is the cheapest time of day to fly from CA to NIR?
Find hourly flight availability from California to Northern Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 January 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from California to Northern Ireland as you normally would.
Rainfall in Northern Ireland by month
Plan your trip to Northern Ireland by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Northern Ireland ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Northern Ireland when rainfall is around 50.0 mm.
Temperature in Northern Ireland by month
Plan your trip to Northern Ireland by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Northern Ireland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).
Reviews of airlines servicing Northern Ireland
Get insights into the airlines that provide service to Northern Ireland. 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 Northern Ireland. Reviews last updated 21 January 2025.
To help decide which airline to fly from California to Northern Ireland, see what other customers have to say about British Airways, American Airlines and Iberia. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
Food
Boarding
Crew
Overall
Comfort
Reviews
This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Entertainment
Food
Boarding
Crew
Overall
Comfort
Reviews
This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Entertainment
Food
Boarding
Crew
Overall
Comfort
Reviews
This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Entertainment
Food
Boarding
Crew
Overall
Comfort
Reviews
This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Entertainment
Food
Boarding
Crew
Overall
Comfort
Reviews
This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Entertainment
Food
Boarding
Crew
Overall
Comfort
Reviews
This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Related info for your journey
Find useful and relevant information for your journey from California to Northern Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for California to Northern Ireland
See prices for flight routes from nearby airports that may be better suited for you.
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from California to Northern Ireland?
Cheapflights makes it easy to find California to Northern Ireland flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from California to Northern Ireland?
Millions of users choose and trust Cheapflights to book the best flight deals from California to Northern Ireland for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from California to Northern Ireland with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from California to Northern Ireland flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from California to Northern Ireland become cheaper?
Of course! You can now track prices for flights from California to Northern Ireland and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.