Question 1

What is the cheapest airline to fly from Belfast to San Diego round-trip?

Accepted Answer

Currently priced at £445, British Airways will fly you from Belfast to San Diego and back. In addition to British Airways, many other airlines offer competitively priced options for your trip.

Question 2

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

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from Belfast to San Diego (average of £585). Flying from Belfast to San Diego in July is currently the most expensive (average of £920). 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.

Question 3

What is the cheapest day to fly from Belfast to San Diego?

Accepted Answer

Travellers seeking maximum savings on their Belfast to San Diego flight should consider departing on Friday mornings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 4

E

Accepted Answer

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 58.0 inches per month. February is typically the wettest month, when rainfall can reach 58.0 mm. July is typically the driest time to visit San Diego when rainfall is around 0.0 mm.

Question 5

E

Accepted Answer

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

Question 6

What is the cheapest day to fly round-trip from Belfast to San Diego?

Accepted Answer

Flying to your destination on a Sunday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to San Diego. Check prices with Cheapflights to find a great deal for your trip.

Question 7

What is the cheapest time of day to fly from BFS to SAN?

Accepted Answer

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Belfast to San Diego as you normally would.

Question 8

What airport do you fly into for flights to San Diego from Belfast?

Accepted Answer

If you book a flight to San Diego from Belfast, you will be flying to San Diego, which is the city’s only airport. San Diego (SAN) is located 2.6 mi from the center of San Diego. There are 0 flights from Belfast to San Diego per day from 1 airline.

Question 9

Can I find deals for flights from Belfast to San Diego that include hotel bookings?

Accepted Answer

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

Question 10

How can I find direct flights from Belfast to San Diego?

Accepted Answer

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

Question 11

Can I find deals for business class flights from Belfast to San Diego?

Accepted Answer

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

Question 12

How does Cheapflights help users find flights from Belfast to San Diego?

Accepted Answer

When you search for this flight from Belfast to San Diego, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Question 13

Why should you use Cheapflights to find cheap flight tickets from Belfast to San Diego?

Accepted Answer

Millions of users choose and trust Cheapflights to book the best flight deals from Belfast to San Diego for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Question 14

Can Cheapflights find flights from Belfast to San Diego with no change fees?

Accepted Answer

Need flexible booking options for your flight to San Diego from Belfast? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Question 15

Can Cheapflights notify me if prices for flights from Belfast to San Diego become cheaper?

Accepted Answer

Yes, Cheapflights offers price alerts on Belfast to San Diego flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

Best time to book a flight from Belfast to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Belfast with our price prediction graph.

Reviews of airlines servicing San Diego

Check out reviews from past customers who have flown with British Airways from Belfast to San Diego to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What airport do you fly into for flights to San Diego from Belfast?

What is the cheapest airline to fly from Belfast to San Diego round-trip?

Can I find deals for flights from Belfast to San Diego that include hotel bookings?

How can I find direct flights from Belfast to San Diego?

Can I find deals for business class flights from Belfast to San Diego?

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

Travelling to a place near San Diego?

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 Belfast to San Diego

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to San Diego by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to California

Book a non-stop flight to one of these other cities located in California.

Search flights from Belfast to San Diego by cabin class

Find flights from Belfast to San Diego, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Belfast and San Diego flights

Browse other Belfast and San Diego flight options. Last updated on 3 September 2025.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2025

Other flights to San Diego

Explore flights to San Diego departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 3 September 2025.

Top airline flying from Belfast to San Diego

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 Belfast to San Diego?

Why should you use Cheapflights to find cheap flight tickets from Belfast to San Diego?

Can Cheapflights find flights from Belfast to San Diego with no change fees?

Can Cheapflights notify me if prices for flights from Belfast to San Diego become cheaper?

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Cheap flights from Belfast to San Diego

Best time to book a flight from Belfast to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Belfast with our price prediction graph.

Reviews of airlines servicing San Diego

Check out reviews from past customers who have flown with British Airways from Belfast to San Diego to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What airport do you fly into for flights to San Diego from Belfast?

What is the cheapest airline to fly from Belfast to San Diego round-trip?

Can I find deals for flights from Belfast to San Diego that include hotel bookings?

How can I find direct flights from Belfast to San Diego?

Can I find deals for business class flights from Belfast to San Diego?

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

Travelling to a place near San Diego?

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 Belfast to San Diego

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Belfast to San Diego

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 Belfast to San Diego?

Why should you use Cheapflights to find cheap flight tickets from Belfast to San Diego?

Can Cheapflights find flights from Belfast to San Diego with no change fees?

Can Cheapflights notify me if prices for flights from Belfast to San Diego become cheaper?

100% Free

Book with Flexibility

Travel Smart