Which airports can I use when flying from San Francisco to Shannon?

Flights from San Francisco to Shannon usually depart from San Francisco (SFO) and arrive at Shannon (SNN).

What cabin classes can I book on flights from San Francisco to Shannon?

Three cabin classes are available on flights from San Francisco to Shannon: • Economy Class • Premium Economy Class • Business Class

Which airports do connecting flights from San Francisco to Shannon pass through?

One-stop flights from San Francisco to Shannon most commonly connect through: • New York John F Kennedy Intl (JFK) - 35% of one-stop connections • London Heathrow (LHR) - 24% of one-stop connections • Chicago O'Hare Intl (ORD) - 19% of one-stop connections • Newark (EWR) - 16% of one-stop connections

Can I save money by using flexible dates for flights from San Francisco to Shannon?

Yes. Flexible dates can save you up to 20% on flights from San Francisco to Shannon. Wednesday is the cheapest departure day at $923 round-trip on average, while Friday is the most expensive at $1,140, a difference of $217. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

How long is a flight from San Francisco to Shannon?

There are currently no nonstop flights available from San Francisco to Shannon. Flights with 1 layover take between 14h 36m and 15h 53m in total, depending on the connection.

Do I need a passport to fly from San Francisco to Shannon?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

How much time can I save by choosing a different layover airport from San Francisco to Shannon?

Flying via Newark (EWR) gives the shortest average 1-stop total travel time at 14h 36m, compared with 14h 56m via Chicago O'Hare Intl (ORD) and 15h 20m via London Heathrow (LHR).

What is the time difference between San Francisco and Shannon?

Shannon is 7 hours ahead of San Francisco (Irish Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Shannon Airport (SNN)?

Shannon Airport (SNN) hosts 5 major car rental companies, with daily rates averaging $33 for economy cars. Top options include: • Budget • Sixt • Europcar • Easirent • Thrifty

How much should I expect to pay for a San Francisco to Shannon flight?

Round-trip flights from San Francisco to Shannon range from $877 to $1,196, with an average of $1,034 over the past 12 months. Anything below $877 counts as a good deal.

How much is a round-trip flight from San Francisco to Shannon?

Round-trip flights from San Francisco to Shannon typically range from $877 to $1,196. The lowest price found in the past 5 days was $738, on United Airlines.

What's the cheapest day of the week to fly from San Francisco to Shannon?

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from San Francisco to Shannon. It’s 11% cheaper than the average day, while Friday is the most expensive, with prices 10% higher.

What’s the cheapest month to fly from San Francisco to Shannon?

•January is the cheapest month to fly from San Francisco to Shannon at $538 round-trip. •November ($2,351) and December ($1,771) are the most expensive months. •The price difference between flying in the cheapest and most expensive months is 336% on average. This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Which airline is the cheapest to fly from San Francisco to Shannon?

United Airlines ($738) and Lufthansa ($907) are the cheapest airlines to fly round-trip from San Francisco to Shannon according to KAYAK data over the last 5 days.

What’s the most popular layover airport when flying from San Francisco to Shannon?

New York John F Kennedy Intl (JFK) is the most popular layover for the San Francisco to Shannon route. 35% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via JFK.

What is the cheapest layover airport when flying from San Francisco to Shannon?

Flights via Newark (EWR) offer the most affordable fares, with an average round-trip price of $986. Based on KAYAK data over the past 3 months.

When flying from San Francisco to Shannon which airport offers the shortest layover?

Newark (EWR) had the shortest average connection time for San Francisco to Shannon layovers at 8h 04m over the past 3 months.

$738 CHEAP FLIGHTS from San Francisco to Shannon (SFO - SNN)

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Cheapest round-trip

$738

Typical prices: $877-$1,196

United Airlines

Wed 4/18Sun 4/22

SFO - SNN • 2 stops

When to travel

January

Cheapest • 48% price drop

June

Most popular

Good to know

Top layover airports

Newark (EWR)

Cheapest • Avg $986 (round-trip)

Chicago O'Hare Intl (ORD)

Shortest trip • 14h 56m (one-way)

Insights

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We hope you love your trip to Shannon!

Flight Deals

Cheap Flights from San Francisco to Shannon (SFO-SNN)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from San Francisco to Shannon

Sun, Apr 18 - Thu, Apr 22

6:30 am - 10:15 amSFO San Francisco-SNN Shannon

19h 45m2 stops Denver Intl Newark

12:30 pm - 12:07 amSNN Shannon-SFO San Francisco

19h 37m2 stops Newark Los Angeles

$738United Airlines

Sun, Apr 18 - Thu, Apr 22

6:00 am - 10:15 amSFO San Francisco-SNN Shannon

20h 15m1 stop Newark

12:30 pm - 12:29 amSNN Shannon-SFO San Francisco

19h 59m2 stops Newark Chicago O'Hare Intl

$738United Airlines

Tue, Apr 13 - Sat, Apr 24

11:15 am - 10:15 amSFO San Francisco-SNN Shannon

15h 00m1 stop Newark

12:30 pm - 11:51 pmSNN Shannon-SFO San Francisco

19h 21m1 stop Newark

$783United Airlines

Tue, Apr 13 - Sat, Apr 24

7:00 am - 10:15 amSFO San Francisco-SNN Shannon

19h 15m1 stop Newark

12:30 pm - 7:29 pmSNN Shannon-SFO San Francisco

14h 59m1 stop Newark

$907Lufthansa

Wed, Nov 18 - Tue, Nov 24

5:20 pm - 7:25 pmSFO San Francisco-SNN Shannon

18h 05m2 stops Dublin London Heathrow

8:05 pm - 3:35 pmSNN Shannon-SFO San Francisco

27h 30m2 stops London Heathrow Dublin

$929Aer Lingus

Tue, Apr 13 - Sat, Apr 24

11:25 am - 4:40 pmSFO San Francisco-SNN Shannon

21h 15m3 stops Vancouver Intl Dublin Birmingham

8:25 am - 2:35 pmSNN Shannon-SFO San Francisco

38h 10m3 stops London Stansted Barcelona-El Prat Lisbon Humberto Delgado

$977Multiple Airlines

Wed, Nov 25 - Wed, Dec 2

5:25 pm - 4:45 pmSFO San Francisco-SNN Shannon

15h 20m1 stop London Heathrow

8:05 pm - 5:10 pmSNN Shannon-SFO San Francisco

29h 05m2 stops London Heathrow Los Angeles

$1,024British Airways

Wed, Nov 25 - Wed, Dec 2

4:00 pm - 4:45 pmSFO San Francisco-SNN Shannon

16h 45m2 stops Phoenix Sky Harbor Intl London Heathrow

8:05 pm - 6:32 pmSNN Shannon-SFO San Francisco

30h 27m2 stops London Heathrow Dallas/Fort Worth

$1,028British Airways

Fri, Nov 27 - Fri, Dec 4

5:25 pm - 3:45 pmSFO San Francisco-SNN Shannon

14h 20m1 stop London Heathrow

2:00 pm - 12:07 amSNN Shannon-SFO San Francisco

18h 07m2 stops Boston Logan Intl Chicago O'Hare Intl

$1,096American Airlines

Fri, Dec 11 - Fri, Dec 18

2:07 pm - 3:45 pmSFO San Francisco-SNN Shannon

17h 38m2 stops Los Angeles London Heathrow

2:00 pm - 1:20 amSNN Shannon-SFO San Francisco

19h 20m2 stops Boston Logan Intl Phoenix Sky Harbor Intl

$1,101American Airlines

Recent last minute flight deals from San Francisco to Shannon

Wed, Nov 4 - Mon, Nov 9

5:20 pm - 7:25 pmSFO San Francisco-SNN Shannon

18h 05m2 stops Dublin London Heathrow

7:50 am - 3:35 pmSNN Shannon-SFO San Francisco

39h 45m2 stops London Heathrow Dublin

$949Aer Lingus

Wed, Nov 4 - Mon, Nov 9

5:25 pm - 4:45 pmSFO San Francisco-SNN Shannon

15h 20m1 stop London Heathrow

5:30 pm - 3:35 pmSNN Shannon-SFO San Francisco

30h 05m2 stops London Heathrow Dublin

$1,094British Airways

Wed, Nov 4 - Mon, Nov 9

5:25 pm - 7:25 pmSFO San Francisco-SNN Shannon

18h 00m1 stop London Heathrow

8:05 pm - 2:55 pmSNN Shannon-SFO San Francisco

26h 50m1 stop London Heathrow

$1,124British Airways

Wed, Nov 4 - Mon, Nov 9

5:20 pm - 8:10 pmSFO San Francisco-SNN Shannon

18h 50m2 stops Dublin Manchester

5:45 am - 8:32 pmSNN Shannon-SFO San Francisco

46h 47m3 stops Madrid Barajas Lisbon Humberto Delgado Los Angeles

$1,276Multiple Airlines

Wed, Nov 4 - Mon, Nov 9

6:30 am - 4:45 pmSFO San Francisco-SNN Shannon

26h 15m3 stops Vancouver Intl Calgary London Heathrow

5:45 am - 8:32 pmSNN Shannon-SFO San Francisco

46h 47m3 stops Madrid Barajas Lisbon Humberto Delgado Los Angeles

$1,880Multiple Airlines

Tue, Nov 3 - Thu, Nov 12

6:40 am - 6:10 amSFO San Francisco-SNN Shannon

39h 30m2 stops Los Angeles Newark

2:40 pm - 11:59 pmSNN Shannon-SFO San Francisco

17h 19m1 stop New York John F Kennedy Intl

$6,350Multiple Airlines

Tue, Nov 3 - Thu, Nov 12

5:25 pm - 4:45 pmSFO San Francisco-SNN Shannon

15h 20m1 stop London Heathrow

2:00 pm - 12:25 amSNN Shannon-SFO San Francisco

18h 25m1 stop Boston Logan Intl

$6,695Multiple Airlines

Tue, Nov 3 - Thu, Nov 12

5:42 pm - 5:50 amSFO San Francisco-SNN Shannon

28h 08m2 stops Seattle/Tacoma Intl Boston Logan Intl

2:40 pm - 11:59 pmSNN Shannon-SFO San Francisco

17h 19m1 stop New York John F Kennedy Intl

$6,846Multiple Airlines

Wed, Nov 4 - Wed, Nov 11

6:59 pm - 6:10 amSFO San Francisco-SNN Shannon

27h 11m2 stops Portland Newark

2:40 pm - 11:59 pmSNN Shannon-SFO San Francisco

17h 19m1 stop New York John F Kennedy Intl

$6,949Multiple Airlines

Wed, Nov 4 - Wed, Nov 11

5:20 pm - 7:25 pmSFO San Francisco-SNN Shannon

18h 05m2 stops Dublin London Heathrow

5:30 pm - 11:40 pmSNN Shannon-SFO San Francisco

38h 10m2 stops London Heathrow Los Angeles

$7,344Aer Lingus

Booking Insights

Price, demand and travel trends for San Francisco to Shannon flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from San Francisco to Shannon? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Francisco to Shannon departing in april.
What's the cheapest day of the week to fly from San Francisco to Shannon?: Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from San Francisco to Shannon. It’s 11% cheaper than the average day, while Friday is the most expensive, with prices 10% higher.
What’s the cheapest month to fly from San Francisco to Shannon? KAYAK internal proprietary data takes all prices for each month over the last 12 months for round-trip flights from San Francisco to Shannon, removes the top 0.1% to account for outliers and then takes the median of all values for each month.: •January is the cheapest month to fly from San Francisco to Shannon at $538 round-trip.
•November ($2,351) and December ($1,771) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 336% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Low season	December
High season	June
Cheapest flight	$738

Beat the crowds with an average 70% drop in travelers.

The most popular month to fly with an average 100% increase in travelers.

Round-trip flight from San Francisco to Shannon

When to book flights from San Francisco to Shannon

Are your dates flexible? Find out the best times to travel from San Francisco to Shannon based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from San Francisco to Shannon?
Three cabin classes are available on flights from San Francisco to Shannon:

• Economy Class
• Premium Economy Class
• Business Class
How long is a flight from San Francisco to Shannon?
There are currently no nonstop flights available from San Francisco to Shannon. Flights with 1 layover take between 14h 36m and 15h 53m in total, depending on the connection.
Do I need a passport to fly from San Francisco to Shannon?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
How much should I expect to pay for a San Francisco to Shannon flight?
Round-trip flights from San Francisco to Shannon range from $877 to $1,196, with an average of $1,034 over the past 12 months. Anything below $877 counts as a good deal.
What car rental options are available at Shannon Airport (SNN)?
Shannon Airport (SNN) hosts 5 major car rental companies, with daily rates averaging $33 for economy cars. Top options include:

• Budget
• Sixt
• Europcar
• Easirent
• Thrifty
Which airports can I use when flying from San Francisco to Shannon?
Flights from San Francisco to Shannon usually depart from San Francisco (SFO) and arrive at Shannon (SNN).
Which airports do connecting flights from San Francisco to Shannon pass through?
One-stop flights from San Francisco to Shannon most commonly connect through:

• New York John F Kennedy Intl (JFK) - 35% of one-stop connections
• London Heathrow (LHR) - 24% of one-stop connections
• Chicago O'Hare Intl (ORD) - 19% of one-stop connections
• Newark (EWR) - 16% of one-stop connections
Can I save money by using flexible dates for flights from San Francisco to Shannon?
Yes. Flexible dates can save you up to 20% on flights from San Francisco to Shannon. Wednesday is the cheapest departure day at $923 round-trip on average, while Friday is the most expensive at $1,140, a difference of $217.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
How much time can I save by choosing a different layover airport from San Francisco to Shannon?
Flying via Newark (EWR) gives the shortest average 1-stop total travel time at 14h 36m, compared with 14h 56m via Chicago O'Hare Intl (ORD) and 15h 20m via London Heathrow (LHR).
What is the time difference between San Francisco and Shannon?
Shannon is 7 hours ahead of San Francisco (Irish Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

If your dates are flexible, aim for a Wednesday departure and avoid flying on Friday. On this route, Wednesday flights average $923, about $217 less than Friday fares (19% savings) based on the last 12 months.
If you can choose when to travel, plan your San Francisco to Shannon trip for January. Fares historically average $538 round-trip in that month - typically $1,813 less than the most expensive month, which is November (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to Shannon Airport.

• Park Inn by Radisson Shannon Airport
• Treacys Oakwood Hotel
• Carrygerry Country House

More options for your flight from San Francisco to Shannon

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Complete your trip to Shannon with a hotel stay or car rental

Car rentals in Shannon

Hotels in Shannon

SFO - SNN

$738 Find Cheap Flights from San Francisco to Shannon - Compare and Save

Everything you should know

Cheap Flights from San Francisco to Shannon (SFO-SNN)

Recent round-trip flight deals from San Francisco to Shannon

Recent one-way flight deals from San Francisco to Shannon

Recent last minute flight deals from San Francisco to Shannon

Price, demand and travel trends for San Francisco to Shannon flights

How much is a round-trip flight from San Francisco to Shannon?

What's the cheapest day of the week to fly from San Francisco to Shannon?

What’s the cheapest month to fly from San Francisco to Shannon?

Which airline is the cheapest to fly from San Francisco to Shannon?

What’s the most popular layover airport when flying from San Francisco to Shannon?

What is the cheapest layover airport when flying from San Francisco to Shannon?

When flying from San Francisco to Shannon which airport offers the shortest layover?

Key details for San Francisco to Shannon flights

Low season

High season

Cheapest flight

When to book flights from San Francisco to Shannon

Your San Francisco to Shannon flight questions, answered

Your guide to booking San Francisco to Shannon flights

More options for your flight from San Francisco to Shannon

Complete your trip to Shannon with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from San Francisco to Shannon

Find direct flights to and from San Francisco and Shannon

Flights from domestic origins to Shannon

Flights to other popular destinations

Find deals for your return flight