Cheap flights from San Francisco (SFO) to Shannon (SNN) from $367

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 9/17. 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 4 — Jun 111

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 30, 2024.

Popular in

December

Cheapest in

March

Round-trip from

$533

One-way from

$367
High demand for flights, 22% potential price rise
Best time to find cheap flights, 27% potential price drop
From San Francisco to Shannon
One-way flight 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.

What is the cheapest time of day to fly from SFO to 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 United Airlines flights from San Francisco to Shannon

Explore cheap flight options specifically provided by United 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 2,784,634 searches. Data last updated May 30, 2024.
Check out some of the cheapest United Airlines 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.
Sat 9/710:55 pmSFO - SNN
2 stops24h 35mUnited Airlines
Tue 9/2412:30 pmSNN - SFO
2 stops19h 29mUnited Airlines
Deal found 5/30$590
Sat 9/710:46 amSFO - SNN
1 stop12h 44mUnited Airlines
Tue 9/2412:30 pmSNN - SFO
2 stops19h 29mUnited Airlines
Deal found 5/30$640
Fri 8/1612:12 amSFO - SNN
1 stop23h 18mUnited Airlines
Sat 8/249:30 amSNN - SFO
1 stop19h 30mUnited Airlines
Deal found 5/30$686
Sat 8/1710:40 amSFO - SNN
1 stop12h 50mUnited Airlines
Sat 8/249:30 amSNN - SFO
2 stops16h 06mUnited Airlines
Deal found 5/30$690
Wed 7/105:15 amSFO - SNN
1 stop18h 15mUnited Airlines
Wed 7/179:30 amSNN - SFO
1 stop17h 25mUnited Airlines
Deal found 5/29$735
Wed 7/106:30 amSFO - SNN
2 stops20h 00mUnited Airlines
Wed 7/179:30 amSNN - SFO
1 stop14h 04mUnited Airlines
Deal found 5/29$739
Wed 7/1010:49 amSFO - SNN
2 stops15h 41mUnited Airlines
Wed 7/179:30 amSNN - SFO
3 stops20h 30mUnited Airlines
Deal found 5/29$786
Sun 7/2112:12 amSFO - SNN
1 stop23h 18mUnited Airlines
Wed 7/319:30 amSNN - SFO
1 stop21h 29mUnited Airlines
Deal found 5/28$818
Mon 7/227:15 amSFO - SNN
2 stops16h 15mUnited Airlines
Wed 7/319:30 amSNN - SFO
1 stop21h 29mUnited Airlines
Deal found 5/28$822

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 2,784,634 searches. Data last updated May 30, 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 8/267:55 amSFO - SNN
2 stops19h 25mAmerican Airlines
Thu 9/57:40 amSNN - SFO
2 stops21h 19mAmerican Airlines
Deal found 5/29$555
Sat 9/710:31 pmSFO - SNN
1 stop23h 34mAmerican Airlines
Tue 9/249:25 pmSNN - SFO
1 stop23h 50mAmerican Airlines
Deal found 5/30$753
Mon 7/13:30 pmSFO - SNN
1 stop21h 05mAmerican Airlines
Mon 7/222:50 pmSNN - SFO
1 stop17h 25mAmerican Airlines
Deal found 5/29$955
Mon 7/11:43 pmSFO - SNN
2 stops22h 52mAmerican Airlines
Mon 7/222:50 pmSNN - SFO
1 stop17h 25mAmerican Airlines
Deal found 5/29$960
Mon 7/111:20 amSFO - SNN
2 stops25h 15mAmerican Airlines
Mon 7/222:50 pmSNN - SFO
2 stops26h 09mAmerican Airlines
Deal found 5/29$964
Fri 8/1612:59 amSFO - SNN
2 stops20h 36mAmerican Airlines
Sat 8/247:40 amSNN - SFO
2 stops20h 15mAmerican Airlines
Deal found 5/30$966
Fri 8/306:15 amSFO - SNN
2 stops15h 20mAmerican Airlines
Sun 9/81:45 pmSNN - SFO
2 stops16h 51mAmerican Airlines
Deal found 5/29$1,024
Sat 6/2910:12 pmSFO - SNN
1 stop23h 53mAmerican Airlines
Sat 7/132:50 pmSNN - SFO
1 stop17h 22mAmerican Airlines
Deal found 5/30$1,131
Sat 6/291:06 pmSFO - SNN
2 stops19h 04mAmerican Airlines
Sat 7/137:40 amSNN - SFO
2 stops19h 16mAmerican Airlines
Deal found 5/28$7,620

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 2,784,634 searches. Prices were last updated on May 30, 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.
Wed 6/265:20 amSFO - SNN
1 stop18h 10mUnited Airlines
Wed 7/39:30 amSNN - SFO
1 stop22h 26mUnited Airlines
Deal found 5/28$978
Sat 6/2911:10 amSFO - SNN
2 stops15h 20mUnited Airlines
Sat 7/69:30 amSNN - SFO
2 stops23h 26mUnited Airlines
Deal found 5/29$982
Sun 6/3012:12 amSFO - SNN
1 stop23h 18mUnited Airlines
Mon 7/229:30 amSNN - SFO
1 stop21h 29mUnited Airlines
Deal found 5/29$1,028
Sun 6/3012:12 amSFO - SNN
1 stop23h 18mUnited Airlines
Mon 7/229:30 amSNN - SFO
2 stops19h 11mUnited Airlines
Deal found 5/29$1,032
Fri 6/2812:12 amSFO - SNN
1 stop23h 18mUnited Airlines
Sat 7/69:30 amSNN - SFO
1 stop31h 15mUnited Airlines
Deal found 5/29$1,041
Wed 6/265:20 amSFO - SNN
1 stop18h 10mUnited Airlines
Wed 7/312:30 pmSNN - SFO
2 stops26h 27mUnited Airlines
Deal found 5/28$1,175
Fri 6/2812:45 amSFO - SNN
2 stops22h 45mUnited Airlines
Sat 7/69:30 amSNN - SFO
2 stops23h 26mUnited Airlines
Deal found 5/29$1,182
Sat 6/293:56 pmSFO - SNN
2 stops20h 39mBritish Airways
Sat 7/135:30 pmSNN - SFO
2 stops38h 45mBritish Airways
Deal found 5/28$1,755
Sat 6/291:43 pmSFO - SNN
2 stops18h 27mBritish Airways
Sat 7/137:40 amSNN - SFO
1 stop17h 45mBritish Airways
Deal found 5/28$3,619

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 2,784,634 searches. Data last updated May 30, 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 8/267:55 amSFO - SNN
2 stops19h 25mAmerican Airlines
Thu 9/57:40 amSNN - SFO
2 stops21h 19mAmerican Airlines
Deal found 5/29$555
Fri 8/1612:12 amSFO - SNN
1 stop23h 18mUnited Airlines
Sat 8/249:30 amSNN - SFO
1 stop19h 30mUnited Airlines
Deal found 5/30$686
Sat 8/178:54 amSFO - SNN
2 stops14h 36mUnited Airlines
Sat 8/249:30 amSNN - SFO
2 stops17h 47mUnited Airlines
Deal found 5/30$690
Mon 8/267:10 amSFO - SNN
1 stop19h 40mKLM
Thu 9/512:50 pmSNN - SFO
1 stop16h 03mKLM
Deal found 5/29$701
Mon 8/267:10 amSFO - SNN
1 stop19h 40mKLM
Thu 9/512:50 pmSNN - SFO
2 stops28h 15mKLM
Deal found 5/29$705
Wed 7/105:15 amSFO - SNN
1 stop18h 15mUnited Airlines
Wed 7/179:30 amSNN - SFO
1 stop17h 25mUnited Airlines
Deal found 5/29$735
Wed 7/106:30 amSFO - SNN
2 stops20h 00mUnited Airlines
Wed 7/179:30 amSNN - SFO
1 stop14h 04mUnited Airlines
Deal found 5/29$739
Wed 7/1010:49 amSFO - SNN
2 stops15h 41mUnited Airlines
Wed 7/179:30 amSNN - SFO
3 stops20h 30mUnited Airlines
Deal found 5/29$786
Sun 7/2112:12 amSFO - SNN
1 stop23h 18mUnited Airlines
Wed 7/319:30 amSNN - SFO
1 stop21h 29mUnited Airlines
Deal found 5/28$818

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 2,784,634 searches. Data last updated May 30, 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.
Tue 9/1712:24 pmSFO - SNN
2 stops24h 36mMultiple Airlines
Deal found 5/29$367
Tue 9/177:20 amSFO - SNN
1 stop14h 45mAmerican Airlines
Deal found 5/29$495
Sun 9/87:20 pmSFO - SNN
1 stop17h 15mBritish Airways
Deal found 5/28$617
Sun 9/85:45 pmSFO - SNN
2 stops18h 50mBritish Airways
Deal found 5/28$619
Mon 9/1612:35 amSFO - SNN
2 stops22h 55mUnited Airlines
Deal found 5/29$625

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 2,784,634 searches. Data last updated May 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$555 - $1,316

Route

Depart

Return

Price

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Mon 8/26

2 stops19h 25m

Shannon

Thu 9/5

2 stops21h 19m

$555

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Sat 9/7

2 stops24h 35m

Shannon

Tue 9/24

2 stops19h 29m

$590

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Sat 9/7

1 stop12h 44m

Shannon

Tue 9/24

2 stops19h 29m

$640

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Fri 8/16

1 stop23h 18m

Shannon

Sat 8/24

1 stop19h 30m

$686

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Mon 8/26

1 stop19h 40m

Shannon

Thu 9/5

1 stop16h 03m

$701

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Mon 8/26

1 stop19h 40m

Shannon

Thu 9/5

2 stops28h 15m

$705

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Sat 9/7

1 stop23h 34m

Shannon

Tue 9/24

1 stop23h 50m

$753

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Wed 6/12

2 stops21h 05m

Shannon

Tue 6/18

2 stops26h 25m

$1,091

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Wed 6/12

1 stop19h 30m

Shannon

Tue 6/18

1 stop16h 54m

$1,316

Flights are sorted by cheapest first

Deals found on 5/29

How far ahead should I 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

What is the cheapest day 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 30, 2024.
Read reviews from past customers who have flown United Airlines, American Airlines and British Airways 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
10,457 reviews

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

8.0

Food

7.4

Comfort

7.9

Reviews

1 / 10

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

8.0
Very good
10,457 reviews
8.0
Very good
10,457 reviews

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

8.0

Food

7.4

Comfort

7.9

Reviews

1 / 10

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

7.9
Good
1,520 reviews
8.0
Very good
10,457 reviews

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

8.0

Food

7.4

Comfort

7.9

Reviews

1 / 10

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

7.4
Good
10,777 reviews
8.0
Very good
10,457 reviews

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

8.0

Food

7.4

Comfort

7.9

Reviews

1 / 10

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

7.3
Good
14,284 reviews
8.0
Very good
10,457 reviews

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

8.0

Food

7.4

Comfort

7.9

Reviews

1 / 10

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

7.0
Good
7,582 reviews
8.0
Very good
10,457 reviews

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

8.0

Food

7.4

Comfort

7.9

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 $600 on Cheapflights?

    Yes, there are multiple flights from San Francisco to Shannon for under $600. The cheapest flight booked recently is on American Airlines for just $555, but on average you can expect to pay $771.

  • 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 $555 on this airline. Additional options worth looking into are United Airlines and KLM, starting at $590 and $701 round-trip. American Airlines is priced at 44% 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 $495 on American Airlines. Other airlines that offer cheap prices include British Airways from $617 and United Airlines from $625 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 5/30.

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

  • What is the cheapest month 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 2,784,634 searches. Data last updated May 30, 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.

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