Cheap flights from Northern Ireland to California from £289
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Northern Ireland to California departing on 24/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise 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.Find the cheapest flights from Northern Ireland to California
Cheap return flights
Cheap one-way flights
Cheap last-minute flights
KLM flights from Northern Ireland to California
Our best KLM deals on Northern Ireland to California flight tickets
American Airlines flights from Northern Ireland to California
Our best American Airlines deals on Northern Ireland to California flight tickets
See travel insights to California from
How to get the cheapest flight ticket from Northern Ireland to California
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 month to fly to California?
If you are unable to visit California during the month of January, then departing from Northern Ireland during the month May is also very affordable. Most momondo users find prices during this month for around £509.
What is the cheapest day to depart on your flight to California?
The cheapest day to depart on your flight to California is on a Saturday when prices can be found for as low as £555. This is often the case because there is less demand to fly during this day of the week. On the other hand, Friday is the most expensive day to depart from Northern Ireland because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £815.
Cheap Northern Ireland to California flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Northern Ireland to California
When did momondo last update prices for flights from Northern Ireland to California?
Prices for flights from Northern Ireland to California are refreshed on a daily basis.
How many operators does momondo search for flights from Northern Ireland to California?
As of April 2025, there is 1 operator available to choose from for flights from Northern Ireland to California.
How old do you have to be to fly from Northern Ireland to California?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Northern Ireland to California.
What documentation or ID do you need to fly to California?
The travel and health documents required for your trip to California can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at California. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Best airlines flying from Northern Ireland to California
Compare and see reviews for airlines that fly from Northern Ireland to California with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £412 | Free Cancellation | Rating 6.6 6,771 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Northern Ireland to California?
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 Northern Ireland to California for you.
Can I find flights from Northern Ireland to California with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to California from Northern Ireland with this policy.
How can momondo help me find flights from Northern Ireland to California?
momondo provides multiple filters to help you find the best flight to California from Northern Ireland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Northern Ireland to California right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Northern Ireland to California flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.