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Shannon

$300+ Cheap flights from San Francisco (SFO) to Shannon (SNN)

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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SNN
abr. 20 — abr. 271
dom. 4/20
dom. 4/27
1 adult, Economy
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Cheapflights Tip: The best prices from San Francisco to Shannon are usually found in October or January, booked 49 days in advance, depart on a Monday or Tuesday and return on a Monday

Cheap flight deals from San Francisco to Shannon

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Shannon (SNN). 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 abril 15, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$635
(United Airlines)

One-way from

$300
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$833
Provider with most accurate pricing for San Francisco-Shannon flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Shannon flights.
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From San Francisco to Shannon
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One-way flight from San Francisco to Shannon
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($105 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from San Francisco to Shannon

Cheapest flights from San Francisco to Shannon
Explore the most affordable flight options available from San Francisco to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 15, 2025.

This deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/18:30 amSFO - SNN
1 stop15h 00mUnited Airlines
mié. 9/1012:30 pmSNN - SFO
1 stop14h 34mUnited Airlines
Deal found 4/14$634
This American Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/133:50 pmSFO - SNN
2 stops16h 20mAmerican Airlines
mié. 5/217:40 amSNN - SFO
2 stops19h 57mAmerican Airlines
Deal found 4/15$704
This deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/511:30 amSFO - SNN
1 stop15h 40mDelta
mié. 9/101:05 pmSNN - SFO
1 stop20h 13mDelta
Deal found 4/14$718
This KLM deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 7/207:00 amSFO - SNN
1 stop20h 10mMultiple Airlines
mar. 7/291:05 pmSNN - SFO
1 stop16h 03mMultiple Airlines
Deal found 4/14$779
This Kiwi.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/134:20 pmSFO - SNN
1 stop20h 15mAer Lingus
mié. 5/219:15 pmSNN - SFO
2 stops26h 40mAer Lingus
Deal found 4/15$852
This Air Canada deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/12:05 pmSFO - SNN
2 stops22h 30mAir Canada
jue. 5/159:15 pmSNN - SFO
2 stops31h 47mAir Canada
Deal found 4/13$925
This British Airways deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 6/86:00 amSFO - SNN
2 stops21h 20mBritish Airways
lun. 6/234:55 pmSNN - SFO
1 stop28h 55mBritish Airways
Deal found 4/14$1,007
This Air France deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/239:35 amSFO - SNN
1 stop17h 35mAir France
sáb. 7/51:05 pmSNN - SFO
1 stop18h 47mAir France
Deal found 4/14$1,048

Cheapflights Fare Finder

Customize your flight search to find flights from San Francisco to Shannon 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 2,558,603 searches. Data last updated abril 15, 2025.
Use the filters below to find and compare flights from San Francisco to Shannon that are best for you.

Fly from

San Francisco

Fly to

Shannon

Route

Depart

Return

Price

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

lun. 9/1

8:30 am-7:30 am

1 stop15h 00m

Shannon

mié. 9/10

12:30 pm-7:04 pm

1 stop14h 34m

$634

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

mar. 5/13

3:50 pm-4:10 pm

2 stops16h 20m

Shannon

mié. 5/21

7:40 am-7:37 pm

2 stops19h 57m

$704

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

vie. 9/5

11:30 am-11:10 am

1 stop15h 40m

Shannon

mié. 9/10

1:05 pm-1:18 am

1 stop20h 13m

$718

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

dom. 7/20

7:00 am-11:10 am

1 stop20h 10m

Shannon

mar. 7/29

1:05 pm-9:08 pm

1 stop16h 03m

$779

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

mar. 5/13

4:20 pm-8:35 pm

1 stop20h 15m

Shannon

mié. 5/21

9:15 pm-3:55 pm

2 stops26h 40m

$852

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

jue. 5/1

2:05 pm-8:35 pm

2 stops22h 30m

Shannon

jue. 5/15

9:15 pm-9:02 pm

2 stops31h 47m

$925

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

dom. 6/8

6:00 am-11:20 am

2 stops21h 20m

Shannon

lun. 6/23

4:55 pm-1:50 pm

1 stop28h 55m

$1,007

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

lun. 6/23

9:35 am-11:10 am

1 stop17h 35m

Shannon

sáb. 7/5

1:05 pm-11:52 pm

1 stop18h 47m

$1,048

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

mar. 5/13

3:34 pm-2:45 pm

3 stops39h 11m

$300

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

mar. 5/13

7:00 am-10:15 am

2 stops19h 15m

$399

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

Showing 1-10 of 12 results
1
2

Compare providers for flights from San Francisco to Shannon

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Shannon in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Francisco-Shannon, Clare flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on San Francisco-Shannon, Clare flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from San Francisco-Shannon, Clare flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-Shannon, Clare flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Shannon, Clare flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Francisco to Shannon

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

How far ahead should I book a flight from San Francisco to Shannon, Clare?

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Shannon. Price data was last updated on April 11, 2025.

The best time to book flights from San Francisco to Shannon, Clare is 48 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from San Francisco to Shannon, Clare?

Currently, February is the cheapest month in which you can book a flight from San Francisco to Shannon, Clare (average of $533). Flying from San Francisco to Shannon, Clare in June is currently the most expensive (average of $1,007). 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 SFO to SNN?

Find hourly flight availability from San Francisco to Shannon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated abril 15, 2025.

It’s optimal to fly from San Francisco to Shannon, Clare in the afternoon. By choosing this option you can save up to 7% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from San Francisco to Shannon, Clare?

Use this chart to determine the cheapest time to fly round-trip from San Francisco to Shannon. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Francisco to Shannon, Clare flight should consider departing on Monday at noon when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Shannon by month

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

In terms of precipitation, rainfall in Shannon, Clare ranges from 2.3 - 4.1 inches per month. October is typically the wettest month, when rainfall can reach 4.1 in. April is typically the driest time to visit Shannon, Clare when rainfall is around 2.3 in.

Temperature in Shannon by month

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

If weather is an important factor for your trip to Shannon, Clare, 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 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 42.8 F).

Reviews of airlines servicing Shannon

Get insights into the airlines that provide service to Shannon. 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 Shannon. Reviews last updated abril 15, 2025.
Delta
8.0
Very good
7,918 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,918 reviews
Delta
8.0
Very good
7,918 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.5
Good
1,435 reviews
Delta
8.0
Very good
7,918 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,658 reviews
Delta
8.0
Very good
7,918 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,918 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Canada
7.0
Good
9,127 reviews
Delta
8.0
Very good
7,918 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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

  • What are the cheapest airlines flying from San Francisco to Shannon, Clare round-trip?

    According to our current data, United Airlines ($635), American Airlines ($704), and Aer Lingus ($852) offers the cheapest pricing from San Francisco to Shannon, Clare. You may be able to fly from San Francisco to Shannon, Clare for 32% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from San Francisco to Shannon, Clare one-way?

    One-way options have recently been found by users for as low as $399 on United Airlines. Other airlines that offer cheap prices include Lufthansa from $547 and British Airways from $577 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Francisco to Shannon 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 San Francisco to Shannon, Clare?

    Currently, February is the cheapest month in which you can book a flight from San Francisco to Shannon, Clare (average of $533). Flying from San Francisco to Shannon, Clare in June is currently the most expensive (average of $1,007). 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

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Top 5 airlines flying from San Francisco to Shannon

Discover the top 5 airlines that operate flights from San Francisco to Shannon. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated abril 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$631Average$1,022FlexibilityNo cancel feeOn-time71%
DeltaCheapest$670Average$896FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$704Average$948FlexibilityNo cancel feeOn-time69%
Aer LingusCheapest$727Average$945FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$752Average$1,152FlexibilityNo cancel feeOn-time70%

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