How long is the flight from Shannon, Clare to San Francisco?

Airlines like British Airways fly from Shannon, Clare to San Francisco in about 15h 05m. The time it takes to get you to your destination can typically vary by up to . Shannon, Clare and San Francisco are separated by a distance of 5032 mi.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

What is the cheapest time of day to fly from SNN to SFO?

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

Can I find deals for flights from Shannon to San Francisco that include hotel bookings?

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

How can I find direct flights from Shannon to San Francisco?

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

Can I find deals for business class flights from Shannon to San Francisco?

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

£552+ Cheap Flights from Shannon to San Francisco

Cheap flight deals from Shannon to San Francisco

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Shannon to San Francisco
Explore the most affordable flight options available from Shannon to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2026.

Wed 2/1220:05 -

1 stop26h 50m

Tue 8/1217:25 -

1 stop15h 20m

Deal found 2/11£593

Thu 3/1220:05 -

1 stop26h 50m

Wed 9/1208:55 -

2 stops18h 35m

Deal found 1/11£608

Thu 3/1207:50 -

2 stops20h 41m

Tue 8/1207:40 -

2 stops19h 50m

Deal found 4/11£710

Thu 26/1107:50 -

2 stops18h 31m

Sun 29/1120:35 -

1 stop14h 50m

Deal found 31/10£721

Sun 20/1214:00 -

1 stop18h 37m

Sun 27/1216:01 -

1 stop30h 09m

Deal found 4/11£793

Mon 23/1120:05 -

1 stop26h 50m

Sat 28/1120:35 -

1 stop30h 55m

Deal found 4/11£823

Find flight deals from Shannon to San Francisco

Round-trip from	£552

British Airways
10/2-16/2
2 total stops
33h 05m total
Shannon to San Francisco

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Shannon to San Francisco that are best for you.

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Fly to

Route

Depart

Return

Price

Cheapest return flight

ShannonSan Francisco

SNN Shannon - SFO San Francisco

SNNSFO

Shannon

Wed 10/2

07:50-14:55

1 stop15h 05m

San Francisco

Tue 16/2

17:25-19:25

1 stop18h 00m

£552

ShannonSan Francisco

SNN Shannon - SFO San Francisco

SNNSFO

Shannon

Wed 2/12

20:05-14:55

1 stop26h 50m

San Francisco

Tue 8/12

17:25-16:45

1 stop15h 20m

£593

Fastest return journey

ShannonSan Francisco

SNN Shannon - SFO San Francisco

SNNSFO

Shannon

Wed 9/12

07:50-14:55

1 stop15h 05m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£613

ShannonSan Francisco

SNN Shannon - SFO San Francisco

SNNSFO

Shannon

Fri 8/1

07:50-14:55

1 stop15h 05m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£616

ShannonSan Francisco

SNN Shannon - SFO San Francisco

SNNSFO

Shannon

Mon 4/1

20:05-21:14

2 stops57h 09m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£622

ShannonSan Francisco

SNN Shannon - SFO San Francisco

SNNSFO

Shannon

Thu 3/12

07:50-20:31

2 stops20h 41m

San Francisco

Wed 9/12

08:55-11:30

2 stops18h 35m

£637

ShannonSan Francisco

SNN Shannon - SFO San Francisco

SNNSFO

Shannon

Wed 13/1

07:50-14:55

1 stop15h 05m

San Francisco

Sun 17/1

10:03-16:45

2 stops22h 42m

£699

ShannonSan Francisco

SNN Shannon - SFO San Francisco

SNNSFO

Shannon

Thu 26/11

07:50-14:55

1 stop15h 05m

San Francisco

Sun 29/11

17:25-19:25

1 stop18h 00m

£751

ShannonSan Francisco

SNN Shannon - SFO San Francisco

SNNSFO

Shannon

Sun 20/12

14:00-00:37

1 stop18h 37m

San Francisco

Sun 27/12

16:01-06:10

1 stop30h 09m

£793

ShannonSan Francisco

SNN Shannon - SFO San Francisco

SNNSFO

Shannon

Mon 23/11

20:05-14:55

1 stop26h 50m

San Francisco

Sat 28/11

20:35-11:30

1 stop30h 55m

£823

Flights are sorted by cheapest return flights first.

Deals found on 4/11

Showing 1-10 of 11 resultsSorted by cheapest first

Best time to book a flight from Shannon to San Francisco

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

SNN-SFO

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.

Related info for your journey

How long is the flight from Shannon, Clare to San Francisco?
Airlines like British Airways fly from Shannon, Clare to San Francisco in about 15h 05m. The time it takes to get you to your destination can typically vary by up to . Shannon, Clare and San Francisco are separated by a distance of 5032 mi.
Can I find deals for flights from Shannon to San Francisco that include hotel bookings?
Yes. In addition to deals on Shannon to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Shannon to San Francisco?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Shannon to San Francisco.
Can I find deals for business class flights from Shannon to San Francisco?
Yes. Cheapflights offers flight deals from Shannon to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Cheapflights makes it easy to find Shannon to San Francisco flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Shannon to San Francisco?

Cheapflights helps you find that perfect flight to San Francisco from Shannon 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 Shannon to San Francisco with no change fees?

Yes! Cheapflights helps users easily find flights from Shannon to San Francisco with no change fees.

Can Cheapflights notify me if prices for flights from Shannon to San Francisco become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Francisco from Shannon today and book when prices fit your budget.

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Cheap flights from Shannon to San Francisco from £552

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/2. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Shannon to San Francisco

Cheapest flights from Shannon to San FranciscoExplore the most affordable flight options available from Shannon to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2026.

Explore the most affordable flight options available from Shannon to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2026.

Best flights from Shannon to San FranciscoDiscover carefully curated flight deals from Shannon to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 November 2026.

Discover carefully curated flight deals from Shannon to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 November 2026.

Last-minute flights from Shannon to San FranciscoDiscover last-minute flight deals from Shannon to San Francisco. Data last updated 5 November 2026 and is based on user searches.

Discover last-minute flight deals from Shannon to San Francisco. Data last updated 5 November 2026 and is based on user searches.

One-way flights from Shannon to San FranciscoSearch for one-way flight options from Shannon to San Francisco. Find affordable one-way fares based on user searches. Data last updated 5 November 2026.

Search for one-way flight options from Shannon to San Francisco. Find affordable one-way fares based on user searches. Data last updated 5 November 2026.

Find flight deals from Shannon to San Francisco

Round-trip from

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Use the filters below to find and compare flights from Shannon to San Francisco that are best for you.

Best time to book a flight from Shannon to San Francisco

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

Related info for your journey

How long is the flight from Shannon, Clare to San Francisco?

Can I find deals for flights from Shannon to San Francisco that include hotel bookings?

How can I find direct flights from Shannon to San Francisco?

Can I find deals for business class flights from Shannon to San Francisco?

Travelling to a place near San Francisco?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Shannon to San Francisco

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Complete your trip

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

Direct flights to California

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Search flights from Shannon to San Francisco by cabin class

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

Shannon and San Francisco flights

Browse other Shannon and San Francisco flight options. Last updated on 5 November 2026.

Other flights from Shannon

Browse through other flights departing from Shannon. Flights are based on user searches made on Cheapflights and were last updated on 5 November 2026.

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Check out other popular destinations found by fellow travellers in 2026

Other flights to San Francisco

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How does Cheapflights help users find flights from Shannon to San Francisco?

Why should you use Cheapflights to find cheap flight tickets from Shannon to San Francisco?

Can Cheapflights find flights from Shannon to San Francisco with no change fees?

Can Cheapflights notify me if prices for flights from Shannon to San Francisco become cheaper?

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Travel Smart

Cheapest flights from Shannon to San Francisco
Explore the most affordable flight options available from Shannon to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2026.

Best flights from Shannon to San Francisco
Discover carefully curated flight deals from Shannon to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 November 2026.

Last-minute flights from Shannon to San Francisco
Discover last-minute flight deals from Shannon to San Francisco. Data last updated 5 November 2026 and is based on user searches.

One-way flights from Shannon to San Francisco
Search for one-way flight options from Shannon to San Francisco. Find affordable one-way fares based on user searches. Data last updated 5 November 2026.