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Cheap flights from California to Belfast from £376

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 23/5. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BHD
5 Apr — 12 Apr1
1 adult

Cheap flight deals from California to Belfast

Keep the following information in mind while searching for California to Belfast flight deals. Data was last updated 31 March 2025.

Round-trip from

£507

One-way from

£376

Popular in

June

Cheapest in

November

Average price

£644
30/4-7/5
  • 30/4-7/5
  • 2 total stops
  • 47h 20m total
  • California to Belfast
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23/5
  • 23/5
  • 2 total stops
  • 38h 10m total
  • California to Belfast
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£66 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£13 potential savings vs. average return price).
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Average for round-trip flights in March 2025
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Find flight deals from California to Belfast

Cheapest flights from California to Belfast
Explore the most affordable flight options available from California to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 March 2025.

Wed 30/416:30LAX - BFS
1 stop31h 20mMultiple Airlines
Wed 7/506:10BFS - LAX
1 stop16h 00mMultiple Airlines
Deal found 31/3£507
Wed 15/1015:40LAX - BHD
1 stop13h 50mBritish Airways
Thu 23/1012:40BHD - LAX
1 stop15h 35mBritish Airways
Deal found 30/3£512
Tue 8/419:30SFO - BHD
1 stop14h 00mBritish Airways
Tue 15/420:20BHD - SFO
1 stop25h 30mBritish Airways
Deal found 30/3£515
Tue 8/415:54SFO - BHD
2 stops17h 36mAmerican Airlines
Tue 15/406:35BHD - SFO
2 stops20h 18mAmerican Airlines
Deal found 30/3£522
Wed 30/410:54ONT - BHD
2 stops17h 01mBritish Airways
Wed 7/511:30BHD - ONT
2 stops18h 27mBritish Airways
Deal found 31/3£522
Wed 15/1013:26LAX - BHD
2 stops16h 04mAmerican Airlines
Thu 23/1006:35BHD - LAX
1 stop19h 00mAmerican Airlines
Deal found 30/3£536
Thu 1/514:19SJC - BHD
2 stops20h 26mBritish Airways
Mon 12/519:30BHD - SJC
2 stops34h 14mBritish Airways
Deal found 30/3£545
Mon 7/716:30LAX - BHD
1 stop17h 00mMultiple Airlines
Fri 18/718:50BHD - LAX
2 stops35h 20mMultiple Airlines
Deal found 30/3£658
Thu 15/506:00SJC - BFS
3 stops24h 05mMultiple Airlines
Thu 22/506:10BFS - SJC
3 stops25h 19mMultiple Airlines
Deal found 31/3£899
Thu 1/507:00SJC - BHD
3 stops29h 20mMultiple Airlines
Mon 12/508:50BHD - SJC
3 stops38h 43mMultiple Airlines
Deal found 30/3£1,062

Cheapflights Fare Finder

Customise your flight search to find flights from California to Belfast 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 31 March 2025.
Use the filters below to find and compare flights from California to Belfast that are best for you.

Fly from

California

Fly to

Belfast

Route

Depart

Return

Price

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Wed 30/4

16:30-07:50

1 stop31h 20m

Belfast Intl

Wed 7/5

06:10-14:10

1 stop16h 00m

£507

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Wed 30/4

13:20-11:55

1 stop14h 35m

Belfast City

Wed 7/5

06:50-13:25

1 stop14h 35m

£516

OntarioBelfast

ONT - BHD

ONTBHD

Ontario

Wed 30/4

10:54-11:55

2 stops17h 01m

Belfast City

Wed 7/5

11:30-21:57

2 stops18h 27m

£522

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sat 3/5

22:33-09:05

2 stops26h 32m

Belfast City

Sat 10/5

19:00-19:16

2 stops32h 16m

£545

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Thu 1/5

14:19-18:45

2 stops20h 26m

Belfast City

Mon 12/5

19:30-21:44

2 stops34h 14m

£545

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Mon 7/7

16:30-17:30

1 stop17h 00m

Belfast City

Fri 18/7

18:50-22:10

2 stops35h 20m

£658

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Wed 4/6

17:05-15:35

1 stop14h 30m

Belfast City

Sat 14/6

07:05-17:05

2 stops18h 00m

£795

San JoseBelfast

SJC - BFS

SJCBFS

San Jose

Thu 15/5

06:00-14:05

3 stops24h 05m

Belfast Intl

Thu 22/5

06:10-23:29

3 stops25h 19m

£899

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Thu 1/5

07:00-20:20

3 stops29h 20m

Belfast City

Mon 12/5

08:50-15:33

3 stops38h 43m

£1,062

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Fri 23/5

12:50-11:00

2 stops38h 10m

£376

Flights are sorted by cheapest return flights first.

Deals found on 31/3

Showing 1-10 of 15 results
1
2

Best time to book a flight from California to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from California with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from California to Belfast

What is the cheapest month to book a flight from California to Belfast?

Currently, January is the cheapest month in which you can book a flight from California to Belfast (average of £67). Flying from California to Belfast 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 BFS?

Find hourly flight availability from California to Belfast. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 31 March 2025.

When flying from California to Belfast, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Belfast by month

Plan your trip to Belfast by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Belfast 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 Belfast when rainfall is around 50.0 mm.

Temperature in Belfast by month

Plan your trip to Belfast by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Belfast, 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 Belfast

Get insights into the airlines that provide service to Belfast. 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 Belfast. Reviews last updated 31 March 2025.
See what other customers who have flown with American Airlines, Iberia and British Airways from California to Belfast have to say. 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.
American Airlines
7.2
Good
10,000 reviews
Check prices

Crew

8.0

Food

6.5

Overall

7.2

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Oct 2024

LAX - ORD

The seats are just SO UNCOMFORTABLE it completely ruins the experience, especially on a redeye. I was so exhausted but couldn’t sleep a wink because it was just so incredibly uncomfortable. I don’t know who designs airplane seats, but they’re curved forward, forcing your body into a slouching position. Please. Please please get new seats. Also ones that actually extent to the bulkhead so that when you try to lean against the wall, you don’t just fall through the gap
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews
Check prices

Crew

8.0

Food

6.5

Overall

7.2

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Oct 2024

LAX - ORD

The seats are just SO UNCOMFORTABLE it completely ruins the experience, especially on a redeye. I was so exhausted but couldn’t sleep a wink because it was just so incredibly uncomfortable. I don’t know who designs airplane seats, but they’re curved forward, forcing your body into a slouching position. Please. Please please get new seats. Also ones that actually extent to the bulkhead so that when you try to lean against the wall, you don’t just fall through the gap
Iberia
7.0
Good
2,653 reviews
American Airlines
7.2
Good
10,000 reviews
Check prices

Crew

8.0

Food

6.5

Overall

7.2

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Oct 2024

LAX - ORD

The seats are just SO UNCOMFORTABLE it completely ruins the experience, especially on a redeye. I was so exhausted but couldn’t sleep a wink because it was just so incredibly uncomfortable. I don’t know who designs airplane seats, but they’re curved forward, forcing your body into a slouching position. Please. Please please get new seats. Also ones that actually extent to the bulkhead so that when you try to lean against the wall, you don’t just fall through the gap
British Airways
6.6
Okay
6,713 reviews
American Airlines
7.2
Good
10,000 reviews
Check prices

Crew

8.0

Food

6.5

Overall

7.2

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Oct 2024

LAX - ORD

The seats are just SO UNCOMFORTABLE it completely ruins the experience, especially on a redeye. I was so exhausted but couldn’t sleep a wink because it was just so incredibly uncomfortable. I don’t know who designs airplane seats, but they’re curved forward, forcing your body into a slouching position. Please. Please please get new seats. Also ones that actually extent to the bulkhead so that when you try to lean against the wall, you don’t just fall through the gap

Related info for your journey

Find useful and relevant information for your journey from California to Belfast. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the most popular routes from California to Belfast?

    While some choose either Los Angeles - Belfast City or San Francisco - Belfast Intl, Los Angeles - Belfast Intl is the most popular route from California to Belfast.

  • Can I find deals for flights from California to Belfast that include hotel bookings?

    Yes. In addition to deals on California to Belfast flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from California to Belfast?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from California to Belfast.

  • Can I find deals for business class flights from California to Belfast?

    Yes. Cheapflights offers flight deals from California to Belfast by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from California to Belfast?

    Currently, January is the cheapest month in which you can book a flight from California to Belfast (average of £67). Flying from California to Belfast 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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How does Cheapflights help users find flights from California to Belfast?

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It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from California to Belfast.

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Certainly. Search results for flights to Belfast from California shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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