Cheap flights from San Francisco (SFO) to Shannon (SNN) from $382

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 8/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SFO — SNN
Jun 2 — Jun 91

The best prices from San Francisco to Shannon are usually found in March or November, booked 48 days in advance, depart on a Wednesday or Friday 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 May 28, 2024.

Popular in

December

Cheapest in

March

Average price

$993

Round-trip from

$533
High demand for flights, 22% potential price rise
Best time to find cheap flights, 27% potential price drop
Average for round-trip flights in May 2024
From San Francisco to Shannon

What is the cheapest day to fly round-trip from San Francisco to Shannon?

Users have found that leaving on a Tuesday can be a cost-effective option. It’s possible to save up to 31% on your flight compared to booking on days when demand is much higher.

How far in advance should I book a flight from San Francisco to Shannon?

To save up to 31% on this flight, we recommend booking at least 49 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from San Francisco to Shannon from $750 1-2 weeks out and tickets from $1,365 for flights departing within the next 72 hours.

What is the cheapest month to fly from San Francisco to Shannon?

Flights from San Francisco to Shannon lean towards being more expensive in December. Prices are generally better when you fly from San Francisco to Shannon in March, with the cheapest ticket starting at $694.

When is the cheapest time to fly from San Francisco to Shannon (SFO - SNN)?

It’s optimal to fly from San Francisco to Shannon in the afternoon. By choosing this option you can save up to 15% on the cost of your flight, compared to a flight in the morning.

Cheap KLM flights from San Francisco to Shannon

Explore cheap flight options specifically provided by KLM for the route between San Francisco and Shannon. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,740,132 searches. Data last updated May 28, 2024.
Check out some of the cheapest KLM flights we've come across from San Francisco to Shannon. Come back soon if you're not finding the exact deal you're looking for.
Mon 8/2611:30 amSFO - SNN
1 stop15h 20mKLM
Thu 9/512:50 pmSNN - SFO
1 stop18h 23mKLM
Deal found 5/27$670
Mon 8/2611:30 amSFO - SNN
1 stop15h 20mKLM
Thu 9/512:50 pmSNN - SFO
2 stops28h 15mKLM
Deal found 5/27$675
Fri 9/208:30 amSFO - SNN
1 stop18h 20mKLM
Sun 10/612:50 pmSNN - SFO
1 stop18h 22mKLM
Deal found 5/26$837
Fri 9/206:00 amSFO - SNN
1 stop20h 50mKLM
Sun 10/612:50 pmSNN - SFO
2 stops28h 32mKLM
Deal found 5/26$842
Wed 9/2510:45 pmSFO - SNN
1 stop28h 05mKLM
Mon 9/3012:50 pmSNN - SFO
2 stops28h 30mKLM
Deal found 5/27$858

Cheap American Airlines flights from San Francisco to Shannon

Explore cheap flight options specifically provided by American Airlines for the route between San Francisco and Shannon. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,740,132 searches. Data last updated May 28, 2024.
Browse through some of the cheapest American Airlines flights traveling from San Francisco to Shannon. Deals frequently update to provide users with more options.
Mon 10/211:47 pmSFO - SNN
2 stops18h 23mAmerican Airlines
Sun 11/37:45 amSNN - SFO
2 stops23h 05mAmerican Airlines
Deal found 5/28$647
Wed 10/161:47 pmSFO - SNN
2 stops18h 23mAmerican Airlines
Tue 10/227:40 amSNN - SFO
2 stops20h 47mAmerican Airlines
Deal found 5/27$648
Mon 8/269:32 amSFO - SNN
2 stops17h 48mAmerican Airlines
Thu 9/57:40 amSNN - SFO
2 stops21h 19mAmerican Airlines
Deal found 5/27$669
Mon 10/213:30 pmSFO - SNN
1 stop16h 40mAmerican Airlines
Sun 11/32:00 pmSNN - SFO
1 stop18h 44mAmerican Airlines
Deal found 5/28$769
Tue 10/1512:54 amSFO - SNN
2 stops20h 41mAmerican Airlines
Tue 10/229:25 pmSNN - SFO
1 stop28h 00mAmerican Airlines
Deal found 5/27$802
Tue 10/1512:54 amSFO - SNN
2 stops20h 41mAmerican Airlines
Tue 10/221:45 pmSNN - SFO
2 stops17h 03mAmerican Airlines
Deal found 5/27$853
Sat 9/215:00 amSFO - SNN
2 stops16h 35mAmerican Airlines
Sun 10/61:45 pmSNN - SFO
2 stops16h 56mAmerican Airlines
Deal found 5/26$872
Fri 9/206:00 amSFO - SNN
2 stops16h 05mAmerican Airlines
Sun 10/61:45 pmSNN - SFO
2 stops16h 56mAmerican Airlines
Deal found 5/26$873
Tue 6/185:45 amSFO - SNN
2 stops16h 20mAmerican Airlines
Mon 6/242:50 pmSNN - SFO
1 stop17h 28mAmerican Airlines
Deal found 5/27$1,182

Cheap San Francisco to Shannon flights in May & June 2024

Find cheap flight options from San Francisco to Shannon specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,740,132 searches. Prices were last updated on May 28, 2024.
These are some of the best deals we've found on flights to Shannon in 2024 at this time. For more flight deals, be sure to check back very soon.
Fri 6/211:40 pmSFO - SNN
1 stop13h 10mDelta
Fri 6/2812:50 pmSNN - SFO
1 stop20h 42mDelta
Deal found 5/27$977
Thu 6/205:20 amSFO - SNN
1 stop18h 10mUnited Airlines
Wed 6/269:30 amSNN - SFO
1 stop22h 33mUnited Airlines
Deal found 5/28$978
Fri 6/211:40 pmSFO - SNN
1 stop13h 10mDelta
Thu 6/2712:50 pmSNN - SFO
2 stops19h 21mDelta
Deal found 5/27$982
Thu 6/204:00 pmSFO - SNN
1 stop34h 50mDelta
Fri 6/2812:50 pmSNN - SFO
1 stop20h 42mDelta
Deal found 5/27$988
Wed 6/191:10 amSFO - SNN
1 stop22h 20mUnited Airlines
Wed 6/269:30 amSNN - SFO
1 stop31h 15mUnited Airlines
Deal found 5/28$989
Thu 6/204:00 pmSFO - SNN
1 stop34h 50mDelta
Mon 6/2412:50 pmSNN - SFO
2 stops19h 02mDelta
Deal found 5/27$992
Wed 6/266:45 amSFO - SNN
1 stop16h 45mUnited Airlines
Wed 7/39:30 amSNN - SFO
1 stop14h 04mUnited Airlines
Deal found 5/27$1,020
Wed 6/265:00 amSFO - SNN
2 stops18h 30mUnited Airlines
Wed 7/39:30 amSNN - SFO
1 stop17h 25mUnited Airlines
Deal found 5/27$1,025
Sun 6/161:10 amSFO - SNN
1 stop22h 20mUnited Airlines
Fri 6/289:30 amSNN - SFO
1 stop23h 26mUnited Airlines
Deal found 5/27$1,027

San Francisco to Shannon 2024 flight deals

Discover exclusive flight deals for travel between San Francisco and Shannon in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,740,132 searches. Data last updated May 28, 2024.
These are some of the best deals we've found on flights to Shannon in 2024 at this time. For more flight deals, be sure to check back very soon.
Mon 10/211:47 pmSFO - SNN
2 stops18h 23mAmerican Airlines
Sun 11/37:45 amSNN - SFO
2 stops23h 05mAmerican Airlines
Deal found 5/28$647
Wed 10/161:47 pmSFO - SNN
2 stops18h 23mAmerican Airlines
Tue 10/227:40 amSNN - SFO
2 stops20h 47mAmerican Airlines
Deal found 5/27$648
Wed 10/161:15 pmSFO - SNN
1 stop13h 15mUnited Airlines
Tue 10/2212:30 pmSNN - SFO
1 stop15h 02mUnited Airlines
Deal found 5/27$650
Wed 10/166:15 amSFO - SNN
3 stops20h 15mUnited Airlines
Tue 10/2212:30 pmSNN - SFO
2 stops26h 54mUnited Airlines
Deal found 5/27$653
Wed 10/167:20 amSFO - SNN
2 stops19h 10mUnited Airlines
Tue 10/2212:30 pmSNN - SFO
1 stop15h 02mUnited Airlines
Deal found 5/27$655
Mon 8/269:32 amSFO - SNN
2 stops17h 48mAmerican Airlines
Thu 9/57:40 amSNN - SFO
2 stops21h 19mAmerican Airlines
Deal found 5/27$669
Mon 8/2611:30 amSFO - SNN
1 stop15h 20mKLM
Thu 9/512:50 pmSNN - SFO
1 stop18h 23mKLM
Deal found 5/27$670
Mon 8/2611:30 amSFO - SNN
1 stop15h 20mKLM
Thu 9/512:50 pmSNN - SFO
2 stops28h 15mKLM
Deal found 5/27$675
Mon 10/213:30 pmSFO - SNN
1 stop16h 40mAmerican Airlines
Sun 11/32:00 pmSNN - SFO
1 stop18h 44mAmerican Airlines
Deal found 5/28$769

One-way flights to Shannon from San Francisco

Search for one-way flight options from San Francisco to Shannon. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,740,132 searches. Data last updated May 28, 2024.
Some of the best available deals we've found on one-way flights from San Francisco to Shannon. For those needing a return trip from San Francisco, there is a search form available above.
Thu 8/112:50 pmSFO - SNN
3 stops26h 25mMultiple Airlines
Deal found 5/26$382
Mon 6/242:42 pmSFO - SNN
3 stops35h 43mMultiple Airlines
Deal found 5/27$419
Wed 7/3112:58 amSFO - SNN
3 stops34h 07mMultiple Airlines
Deal found 5/26$441
Thu 8/14:05 pmSFO - SNN
2 stops23h 10mMultiple Airlines
Deal found 5/26$500
Sun 6/232:42 pmSFO - SNN
2 stops59h 43mMultiple Airlines
Deal found 5/27$513
Fri 9/135:45 pmSFO - SNN
2 stops34h 05mAer Lingus
Deal found 5/27$595
Mon 9/305:00 amSFO - SNN
2 stops16h 35mAmerican Airlines
Deal found 5/28$609
Wed 7/3112:12 amSFO - SNN
1 stop23h 18mUnited Airlines
Deal found 5/26$610
Sun 6/2312:59 amSFO - SNN
3 stops28h 16mMultiple Airlines
Deal found 5/27$629

Find flights from San Francisco to Shannon within your budget

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 2,740,132 searches. Data last updated May 28, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$647 - $977

Route

Depart

Return

Price

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Mon 10/21

2 stops18h 23m

Shannon

Sun 11/3

2 stops23h 05m

$647

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Wed 10/16

2 stops18h 23m

Shannon

Tue 10/22

2 stops20h 47m

$648

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Wed 10/16

1 stop13h 15m

Shannon

Tue 10/22

1 stop15h 02m

$650

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Wed 10/16

3 stops20h 15m

Shannon

Tue 10/22

2 stops26h 54m

$653

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Mon 8/26

1 stop15h 20m

Shannon

Thu 9/5

1 stop18h 23m

$670

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Mon 8/26

1 stop15h 20m

Shannon

Thu 9/5

2 stops28h 15m

$675

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Mon 10/21

1 stop16h 40m

Shannon

Sun 11/3

2 stops27h 10m

$771

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Mon 10/21

3 stops27h 50m

Shannon

Sun 11/3

2 stops21h 14m

$808

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Fri 6/21

1 stop13h 10m

Shannon

Fri 6/28

1 stop20h 42m

$977

Flights are sorted by cheapest first

Deals found on 5/28

When is the best time to book a flight from San Francisco to Shannon?

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 May 24, 2024.
Booking 48 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco to Shannon. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Search Deals

When is the cheapest time to fly from San Francisco to Shannon?

Use this chart to determine the cheapest time to fly round-trip from San Francisco to Shannon. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their San Francisco to Shannon flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

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.

Temperature and rainfall in Shannon by month

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

SNN

Temperature

42.8 - 60.8 °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 May 28, 2024.
Read reviews from past customers who have flown KLM, American Airlines and United Airlines from San Francisco to Shannon. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
10,476 reviews

Boarding

8.2

Comfort

7.9

Food

7.4

Overall

8.0

Entertainment

8.0

Crew

8.6

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

8.0
Very good
10,476 reviews
8.0
Very good
10,476 reviews

Boarding

8.2

Comfort

7.9

Food

7.4

Overall

8.0

Entertainment

8.0

Crew

8.6

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

7.9
Good
1,528 reviews
8.0
Very good
10,476 reviews

Boarding

8.2

Comfort

7.9

Food

7.4

Overall

8.0

Entertainment

8.0

Crew

8.6

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

7.4
Good
10,799 reviews
8.0
Very good
10,476 reviews

Boarding

8.2

Comfort

7.9

Food

7.4

Overall

8.0

Entertainment

8.0

Crew

8.6

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

7.3
Good
14,316 reviews
8.0
Very good
10,476 reviews

Boarding

8.2

Comfort

7.9

Food

7.4

Overall

8.0

Entertainment

8.0

Crew

8.6

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

7.2
Good
1,309 reviews
8.0
Very good
10,476 reviews

Boarding

8.2

Comfort

7.9

Food

7.4

Overall

8.0

Entertainment

8.0

Crew

8.6

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

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.
  • Can I find flights from San Francisco to Shannon for under $700 on Cheapflights?

    Yes, there are multiple flights from San Francisco to Shannon for under $700. The cheapest flight booked recently is on American Airlines for just $647, but on average you can expect to pay $759.

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

    Our cheapest airline available from San Francisco to Shannon is American Airlines. Our recent data shows that you can find tickets from as low as $647 on this airline. Additional options worth looking into are United Airlines and KLM, starting at $650 and $670 round-trip. American Airlines is priced at 35% lower than the current average price of a flight leaving 3 months from now.

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

    One-way options have recently been found by users for as low as $595 on Aer Lingus. Other airlines that offer cheap prices include American Airlines from $609 and United Airlines from $610 one-way.

  • What does SFO to SNN mean?

    This is defined as San Francisco Airport (SFO) and Shannon Airport (SNN). Codes like Shannon Airport are often used to just call airports uniquely.

  • Can I find deals for flights from San Francisco to Shannon that include extra baggage allowance?

    The amount of baggage you can bring on your San Francisco to Shannon flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from San Francisco to Shannon with specific airlines?

    Yes, Cheapflights allows you to browse and filter San Francisco to Shannon flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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.

  • Can I find deals for flights from San Francisco to Shannon that allow pets onboard?

    Many airlines flying from San Francisco to Shannon offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from San Francisco to Shannon?

    Yes, you can often find last-minute deals on San Francisco to Shannon flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the San Francisco to Shannon flight deals updated?

    The San Francisco to Shannon flight deals you see on this page were last updated on 5/28.

  • What are the most popular airlines that fly from San Francisco to Shannon?

  • When is the best time to book a flight from San Francisco to Shannon?

    Currently, February is the cheapest month in which you can book a flight from San Francisco to Shannon (average of $533). Flying from San Francisco to Shannon in June is currently the most expensive (average of $1,023). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 2,740,132 searches. Data last updated May 28, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$631Average$850FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Aer LingusCheapest$699Average$1,262FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
DeltaCheapest$705Average$994FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
British AirwaysCheapest$723Average$886FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest$748Average$1,115FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Search flights from San Francisco to Shannon by cabin class

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

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Shannon from San Francisco today with Cheapflights!

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Shannon from San Francisco.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from San Francisco to Shannon, users can toggle the no change fees filter when performing a flight search.

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

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

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.