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Cheap flights from Santa Rosa to Belfast from £1,152

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
STS — BHD
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags

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Best flights from Santa Rosa to Belfast
Discover carefully curated flight deals from Santa Rosa to Belfast that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 31 October 2025.

Sun 5/413:22STS - BHD
2 stops17h 18mAmerican Airlines
Thu 9/416:20BHD - STS
2 stops39h 21mAmerican Airlines
Deal found 28/10£1,152

Cheap flight deals from Santa Rosa to Belfast

Discover tips and strategies to find the most affordable flight options for your journey from Santa Rosa (STS) to Belfast (BF1). 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 31 October 2025.

Round-trip from

£1,152

Popular in

January

Cheapest in

April

Average price

£494
American Airlines
  • American Airlines
  • 5/4-9/4
  • 4 total stops
  • 47h 11m total
  • Santa Rosa to Belfast
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£101 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£25 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
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Cheapflights Fare Finder

 
Customise your flight search to find flights from Santa Rosa 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 October 2025.
Use the filters below to find and compare flights from Santa Rosa to Belfast that are best for you.

Fly from

Santa Rosa

Fly to

Belfast

Route

Depart

Return

Price

Santa RosaBelfast

STS - BHD

STSBHD

Santa Rosa Sonoma County

Sun 5/4

13:22-14:40

2 stops17h 18m

Belfast City

Thu 9/4

16:20-23:41

2 stops39h 21m

£1,152

Flights are sorted by cheapest return flights first.

Deals found on 28/10

Best time to book a flight from Santa Rosa to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from Santa Rosa 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 Santa Rosa to Belfast

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

Currently, April is the cheapest month in which you can book a flight from Santa Rosa to Belfast (average of £445). Flying from Santa Rosa to Belfast in January is currently the most expensive (average of £1,016). 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.

Related info for your journey

Find useful and relevant information for your journey from Santa Rosa to Belfast. 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 from for flights from Santa Rosa to Belfast?

    If you book a flight to Belfast from Santa Rosa, you will be flying from Sonoma County, which is the city’s only airport. Santa Rosa Sonoma County (STS) is located 7.2 mi from the center of Santa Rosa. There are 0 flights from Sonoma County to Belfast per day from 0 different airlines.

  • How long is the flight from Santa Rosa to Belfast?

    A quick flight from Santa Rosa to Belfast can take about 17h 18m. American Airlines provides one of the quickest options available for as low as £1,152. The distance from Santa Rosa to Belfast is about 4999 mi.

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

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

  • How can I find direct flights from Santa Rosa to Belfast?

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

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

    Yes. Cheapflights offers flight deals from Santa Rosa 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 Santa Rosa to Belfast?

    Currently, April is the cheapest month in which you can book a flight from Santa Rosa to Belfast (average of £445). Flying from Santa Rosa to Belfast in January is currently the most expensive (average of £1,016). 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.

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How does Cheapflights help users find flights from Santa Rosa to Belfast?

When you search for this flight from Santa Rosa to Belfast, 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.

Why should you use Cheapflights to find cheap flight tickets from Santa Rosa to Belfast?

Cheapflights helps you find that perfect flight to Belfast from Santa Rosa by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Santa Rosa to Belfast with no change fees?

Yes, we can. To see specific flights from Santa Rosa to Belfast with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Santa Rosa to Belfast become cheaper?

Yes, Cheapflights offers price alerts on Santa Rosa to Belfast 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.

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