Cheap flights from San Francisco (SFO) to Shannon (SNN) from $415

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 10/3. 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
May 27 — Jun 31

The best prices from San Francisco to Shannon are usually found in March or November, booked 89 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 22, 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 30% 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 1% on this flight, we recommend booking at least 29 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 16% on the cost of your flight, compared to a flight in the morning.

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 2,730,072 searches. Data last updated May 22, 2024.
Check out some of the cheapest American 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.
Mon 8/268:00 amSFO - SNN
2 stops19h 20mAmerican Airlines
Thu 9/57:40 amSNN - SFO
2 stops20h 47mAmerican Airlines
Deal found 5/21$669
Fri 6/2811:57 pmSFO - SNN
2 stops27h 23mAmerican Airlines
Fri 7/122:50 pmSNN - SFO
3 stops28h 23mAmerican Airlines
Deal found 5/21$1,450

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 2,730,072 searches. Data last updated May 22, 2024.
Browse through some of the cheapest KLM flights traveling from San Francisco to Shannon. Deals frequently update to provide users with more options.
Mon 8/266:00 amSFO - SNN
1 stop20h 50mKLM
Thu 9/512:50 pmSNN - SFO
1 stop20h 27mKLM
Deal found 5/21$671
Wed 9/46:00 amSFO - SNN
1 stop20h 50mKLM
Sat 9/2812:50 pmSNN - SFO
1 stop16h 40mKLM
Deal found 5/22$755
Wed 9/411:30 amSFO - SNN
1 stop15h 20mKLM
Sat 9/2812:50 pmSNN - SFO
2 stops28h 30mKLM
Deal found 5/22$759
Wed 9/46:05 amSFO - SNN
2 stops20h 45mKLM
Sat 9/2812:50 pmSNN - SFO
2 stops31h 23mKLM
Deal found 5/22$774
Wed 7/107:05 amSFO - SNN
1 stop19h 45mKLM
Fri 8/912:50 pmSNN - SFO
2 stops28h 32mKLM
Deal found 5/20$829
Mon 6/311:30 amSFO - SNN
1 stop15h 20mKLM
Mon 6/1012:50 pmSNN - SFO
2 stops28h 10mKLM
Deal found 5/20$911
Wed 7/176:00 amSFO - SNN
2 stops20h 50mKLM
Tue 7/2312:50 pmSNN - SFO
2 stops28h 10mKLM
Deal found 5/21$4,417

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 2,730,072 searches. Prices were last updated on May 22, 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.
Sun 6/21:10 amSFO - SNN
1 stop22h 20mUnited Airlines
Mon 6/109:30 amSNN - SFO
1 stop14h 05mUnited Airlines
Deal found 5/20$907
Mon 6/311:30 amSFO - SNN
1 stop15h 20mKLM
Mon 6/1012:50 pmSNN - SFO
2 stops28h 10mKLM
Deal found 5/20$911
Mon 6/171:10 amSFO - SNN
1 stop22h 20mUnited Airlines
Tue 6/2512:30 pmSNN - SFO
2 stops17h 30mUnited Airlines
Deal found 5/21$982
Fri 6/284:50 pmSFO - SNN
1 stop30h 40mUnited Airlines
Fri 7/129:30 amSNN - SFO
1 stop21h 29mUnited Airlines
Deal found 5/21$989
Mon 6/171:10 amSFO - SNN
1 stop22h 20mUnited Airlines
Tue 6/2512:30 pmSNN - SFO
1 stop15h 18mUnited Airlines
Deal found 5/21$1,021
Fri 6/2812:12 amSFO - SNN
1 stop23h 18mUnited Airlines
Sat 7/1312:30 pmSNN - SFO
2 stops28h 15mUnited Airlines
Deal found 5/21$1,032
Fri 6/215:00 amSFO - SNN
2 stops21h 30mUnited Airlines
Fri 6/289:30 amSNN - SFO
1 stop23h 26mUnited Airlines
Deal found 5/22$1,075
Thu 6/2712:12 amSFO - SNN
1 stop23h 18mUnited Airlines
Fri 7/129:30 amSNN - SFO
1 stop15h 44mUnited Airlines
Deal found 5/21$1,086
Fri 6/2812:12 amSFO - SNN
1 stop23h 18mUnited Airlines
Sat 7/139:30 amSNN - SFO
1 stop19h 44mUnited Airlines
Deal found 5/21$1,171

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 2,730,072 searches. Data last updated May 22, 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 8/268:00 amSFO - SNN
2 stops19h 20mAmerican Airlines
Thu 9/57:40 amSNN - SFO
2 stops20h 47mAmerican Airlines
Deal found 5/21$669
Mon 8/266:00 amSFO - SNN
1 stop20h 50mKLM
Thu 9/512:50 pmSNN - SFO
1 stop20h 27mKLM
Deal found 5/21$671
Tue 8/279:10 amSFO - SNN
2 stops17h 20mUnited Airlines
Sun 9/19:30 amSNN - SFO
2 stops17h 47mUnited Airlines
Deal found 5/21$675
Wed 9/46:00 amSFO - SNN
1 stop20h 50mKLM
Sat 9/2812:50 pmSNN - SFO
1 stop16h 40mKLM
Deal found 5/22$755
Wed 9/411:30 amSFO - SNN
1 stop15h 20mKLM
Sat 9/2812:50 pmSNN - SFO
2 stops28h 30mKLM
Deal found 5/22$759
Wed 9/46:05 amSFO - SNN
2 stops20h 45mKLM
Sat 9/2812:50 pmSNN - SFO
2 stops31h 23mKLM
Deal found 5/22$774
Fri 8/306:20 amSFO - SNN
1 stop17h 10mUnited Airlines
Sun 9/89:30 amSNN - SFO
1 stop21h 26mUnited Airlines
Deal found 5/21$825
Wed 7/107:05 amSFO - SNN
1 stop19h 45mKLM
Fri 8/912:50 pmSNN - SFO
2 stops28h 32mKLM
Deal found 5/20$829
Fri 8/306:20 amSFO - SNN
2 stops20h 10mUnited Airlines
Sun 9/89:30 amSNN - SFO
2 stops16h 04mUnited Airlines
Deal found 5/22$877

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 2,730,072 searches. Data last updated May 22, 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 10/32:41 pmSFO - SNN
2 stops41h 04mMultiple Airlines
Deal found 5/21$415
Wed 10/212:58 amSFO - SNN
3 stops31h 12mMultiple Airlines
Deal found 5/21$486
Mon 7/12:42 pmSFO - SNN
3 stops45h 53mMultiple Airlines
Deal found 5/22$576
Mon 7/111:30 pmSFO - SNN
2 stops22h 35mAmerican Airlines
Deal found 5/22$609
Mon 7/110:13 pmSFO - SNN
1 stop23h 52mAmerican Airlines
Deal found 5/22$610
Fri 6/142:42 pmSFO - SNN
2 stops37h 08mMultiple Airlines
Deal found 5/21$671
Mon 6/172:42 pmSFO - SNN
3 stops41h 28mMultiple Airlines
Deal found 5/21$694
Sun 6/162:42 pmSFO - SNN
3 stops41h 28mMultiple Airlines
Deal found 5/21$708
Wed 6/1212:59 amSFO - SNN
3 stops35h 36mMultiple Airlines
Deal found 5/21$735

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 2,730,072 searches. Data last updated May 22, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$669 - $1,393

Route

Depart

Return

Price

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Mon 8/26

2 stops19h 20m

Shannon

Thu 9/5

2 stops20h 47m

$669

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Mon 8/26

1 stop20h 50m

Shannon

Thu 9/5

1 stop20h 27m

$671

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Tue 8/27

2 stops17h 20m

Shannon

Sun 9/1

2 stops17h 47m

$675

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Wed 9/4

1 stop20h 50m

Shannon

Sat 9/28

1 stop16h 40m

$755

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Wed 9/4

1 stop15h 20m

Shannon

Sat 9/28

2 stops28h 30m

$759

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Wed 9/4

2 stops20h 45m

Shannon

Sat 9/28

2 stops31h 23m

$774

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Fri 8/30

1 stop17h 10m

Shannon

Sun 9/8

1 stop21h 26m

$825

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Fri 8/30

2 stops20h 10m

Shannon

Sun 9/8

2 stops16h 04m

$877

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Tue 7/9

1 stop23h 18m

Shannon

Fri 8/9

2 stops23h 41m

$1,393

Flights are sorted by cheapest first

Deals found on 5/21

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 10, 2024.
Booking 87 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 19, 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 22, 2024.
Read reviews from past customers who have flown American Airlines, KLM 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
10,585 reviews

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.4

Reviews

1 / 10

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

8.0
Very good
10,585 reviews
8.0
Very good
10,585 reviews

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.4

Reviews

1 / 10

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

7.9
Good
1,555 reviews
8.0
Very good
10,585 reviews

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.4

Reviews

1 / 10

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

7.4
Good
10,870 reviews
8.0
Very good
10,585 reviews

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.4

Reviews

1 / 10

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

7.3
Good
14,421 reviews
8.0
Very good
10,585 reviews

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.4

Reviews

1 / 10

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

7.0
Good
6,954 reviews
8.0
Very good
10,585 reviews

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.4

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 $669, but on average you can expect to pay $907.

  • 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 $669 on this airline. Additional options worth looking into are KLM and United Airlines, starting at $671 and $675 round-trip. American Airlines is priced at 32% 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 $609 on American Airlines. Other airlines that offer cheap prices include United Airlines from $799 and Delta from $857 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 5/22.

  • 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 2,730,072 searches. Data last updated May 22, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$614Average$846FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Aer LingusCheapest$706Average$1,262FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest$723Average$886FlexibilityNo cancel feeOn-time70%
Search British Airways flights
DeltaCheapest$736Average$994FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$749Average$1,130FlexibilityNo 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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