Cheap flights from California to Northern Ireland from $239
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from California to Northern Ireland departing on 10/12. 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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How to get the cheapest flight ticket from California to Northern Ireland
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 day to depart on your flight to Northern Ireland?
The cheapest day to depart on your flight to Northern Ireland is on a Friday when prices can be found for as low as $691. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from California to Northern Ireland for around $1,143.
What is the cheapest time of day to depart on your flight to Northern Ireland?
At noon is the cheapest time of day to fly from California to Northern Ireland when you can find flight prices for as low as $681. Flying to Northern Ireland at noon is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive with an average ticket price of $838.
Cheap California to Northern Ireland flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from California to Northern Ireland
Best Price Found | $239 |
|---|---|
Fastest flight time | 12h 45m |
Direct flights | None |
Airports in Northern Ireland | 2 airports |
When did momondo last update prices for flights from California to Northern Ireland?
Prices for flights from California to Northern Ireland are updated daily.
How many operators does momondo search for flights from California to Northern Ireland?
As of June 2025, there are 2 operators available to choose from for flights from California to Northern Ireland.
How old do you have to be to fly from California to Northern Ireland?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from California to Northern Ireland.
What documentation or ID do you need to fly to Northern Ireland?
The required travel and health documents for your Northern Ireland 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 Northern Ireland. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
Best airlines flying from California to Northern Ireland
Compare and see reviews for airlines that fly from California to Northern Ireland with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $493 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $588 | Free Cancellation | Rating 6.6 7,019 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from California to Northern Ireland?
Finding the right flight to Northern Ireland from California is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Northern Ireland quick and easy, saving you time and money.
Can I find flights from California to Northern Ireland with flexible booking policies on momondo?
All flight searches from California to Northern Ireland on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from California to Northern Ireland?
momondo helps you find the best flight between California and Northern Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from California to Northern Ireland right now. Can momondo alert me if prices change?
Price alerts on flights to Northern Ireland from California 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.