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Cheap flights from California to Shannon from €315

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from California to Shannon departing on 24/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from California to Shannon

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
08:45 - 10:15SAN  San Diego-SNN Shannon
17h 30m2 stops Denver Intl Newark
United Airlines Logo
12:30 - 22:19SNN  Shannon-SAN San Diego
17h 49m1 stop Newark
€665United Airlines
Mon, 21 Sep - Tue, 6 Oct
United Airlines Logo
09:10 - 10:15RNO  Reno-SNN Shannon
17h 05m2 stops Denver Intl Newark
United Airlines Logo
12:30 - 11:46SNN  Shannon-RNO Reno
31h 16m3 stops Newark Houston George Bush Intcntl San Francisco
€677United Airlines
Mon, 21 Sep - Tue, 6 Oct
United Airlines Logo
07:00 - 07:30SMF  Sacramento Intl-SNN Shannon
16h 30m1 stop Chicago O'Hare Intl
United Airlines Logo
09:30 - 22:46SNN  Shannon-SMF Sacramento Intl
21h 16m1 stop Chicago O'Hare Intl
€679United Airlines
Tue, 8 Sep - Fri, 18 Sep
United Airlines Logo
06:30 - 07:30SMF  Sacramento Intl-SNN Shannon
17h 00m2 stops San Francisco Chicago O'Hare Intl
United Airlines Logo
12:30 - 22:30SNN  Shannon-SMF Sacramento Intl
18h 00m1 stop Newark
€683United Airlines
Tue, 8 Sep - Fri, 18 Sep
United Airlines Logo
09:10 - 10:15RNO  Reno-SNN Shannon
17h 05m2 stops Denver Intl Newark
United Airlines Logo
12:30 - 19:53SNN  Shannon-RNO Reno
39h 23m2 stops Newark San Francisco
€687United Airlines
Mon, 21 Sep - Fri, 9 Oct
KLM Logo
22:35 - 11:10SFO  San Francisco-SNN Shannon
28h 35m1 stop New York John F Kennedy Intl
KLM Logo
13:05 - 10:17SNN  Shannon-SFO San Francisco
29h 12m1 stop New York John F Kennedy Intl
€692KLM
Sat, 5 Sep - Fri, 18 Sep
KLM Logo
22:35 - 11:10SFO  San Francisco-SNN Shannon
28h 35m1 stop New York John F Kennedy Intl
KLM Logo
13:05 - 16:24SNN  Shannon-SFO San Francisco
35h 19m2 stops New York John F Kennedy Intl Salt Lake City
€693KLM
Sat, 5 Sep - Fri, 18 Sep
United Airlines Logo
23:59 - 10:15SFO  San Francisco-SNN Shannon
26h 16m1 stop Newark
United Airlines Logo
09:30 - 15:35SNN  Shannon-SFO San Francisco
14h 05m1 stop Chicago O'Hare Intl
€696United Airlines
Sat, 5 Sep - Fri, 18 Sep
United Airlines Logo
21:13 - 07:30SFO  San Francisco-SNN Shannon
26h 17m2 stops Denver Intl Chicago O'Hare Intl
United Airlines Logo
09:30 - 15:35SNN  Shannon-SFO San Francisco
14h 05m1 stop Chicago O'Hare Intl
€696United Airlines
Sat, 5 Sep - Fri, 18 Sep
United Airlines Logo
00:35 - 07:30SFO  San Francisco-SNN Shannon
22h 55m1 stop Chicago O'Hare Intl
United Airlines Logo
09:30 - 15:35SNN  Shannon-SFO San Francisco
14h 05m1 stop Chicago O'Hare Intl
€703United Airlines
Mon, 7 Sep - Fri, 18 Sep

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United Airlines flights from California to Shannon, Clare

Our best United Airlines deals on California to Shannon, Clare flight tickets
United Airlines
21 Sept
SAN08:45San Diego
17h 30m
2 stops
SNN10:15Shannon
6 Oct
SNN12:30Shannon
17h 49m
1 stop
SAN22:19San Diego
€665
United Airlines
21 Sept
RNO09:10Reno
17h 05m
2 stops
SNN10:15Shannon
6 Oct
SNN12:30Shannon
31h 16m
3 stops
RNO11:46Reno
€677
United Airlines
8 Sept
SMF07:00Sacramento Intl
16h 30m
1 stop
SNN07:30Shannon
18 Sept
SNN09:30Shannon
21h 16m
1 stop
SMF22:46Sacramento Intl
€679

KLM flights from California to Shannon, Clare

Our best KLM deals on California to Shannon, Clare flight tickets
KLM
5 Sept
SFO22:35San Francisco
28h 35m
1 stop
SNN11:10Shannon
18 Sept
SNN13:05Shannon
29h 12m
1 stop
SFO10:17San Francisco
€692
KLM
5 Sept
SFO22:35San Francisco
28h 35m
1 stop
SNN11:10Shannon
18 Sept
SNN13:05Shannon
35h 19m
2 stops
SFO16:24San Francisco
€693
KLM
9 Sept
LAX07:35Los Angeles
19h 35m
1 stop
SNN11:10Shannon
19 Sept
SNN13:05Shannon
15h 45m
1 stop
LAX20:50Los Angeles
€722

momondo Fare Finder

 
Customise your flight search to find flights from California to Shannon, Clare 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, momondo users made 13,528 searches. Data last updated 10 August 2026.
Use the filters below to find and compare flights from California to Shannon, Clare that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San DiegoShannon

SAN San Diego - SNN Shannon

SANSNN

San Diego

Mon 21/9

08:45-10:15

2 stops17h 30m

Shannon

Tue 6/10

12:30-22:19

1 stop17h 49m

€665

RenoShannon

RNO Reno - SNN Shannon

RNOSNN

Reno

Mon 21/9

09:10-10:15

2 stops17h 05m

Shannon

Tue 6/10

12:30-11:46

3 stops31h 16m

€677

SacramentoShannon

SMF Sacramento Intl - SNN Shannon

SMFSNN

Sacramento Intl

Tue 8/9

07:00-07:30

1 stop16h 30m

Shannon

Fri 18/9

09:30-22:46

1 stop21h 16m

€679
Fastest return journey

SacramentoShannon

SMF Sacramento Intl - SNN Shannon

SMFSNN

Sacramento Intl

Tue 8/9

06:30-07:30

2 stops17h 00m

Shannon

Fri 18/9

12:30-22:30

1 stop18h 00m

€683

RenoShannon

RNO Reno - SNN Shannon

RNOSNN

Reno

Mon 21/9

09:10-10:15

2 stops17h 05m

Shannon

Fri 9/10

12:30-19:53

2 stops39h 23m

€687

San FranciscoShannon

SFO San Francisco - SNN Shannon

SFOSNN

San Francisco

Sat 5/9

22:35-11:10

1 stop28h 35m

Shannon

Fri 18/9

13:05-10:17

1 stop29h 12m

€692

San FranciscoShannon

SFO San Francisco - SNN Shannon

SFOSNN

San Francisco

Sat 5/9

22:35-11:10

1 stop28h 35m

Shannon

Fri 18/9

13:05-16:24

2 stops35h 19m

€693

San FranciscoShannon

SFO San Francisco - SNN Shannon

SFOSNN

San Francisco

Sat 5/9

23:59-10:15

1 stop26h 16m

Shannon

Fri 18/9

09:30-15:35

1 stop14h 05m

€696

San FranciscoShannon

SFO San Francisco - SNN Shannon

SFOSNN

San Francisco

Sat 5/9

21:13-07:30

2 stops26h 17m

Shannon

Fri 18/9

09:30-15:35

1 stop14h 05m

€696

San FranciscoShannon

SFO San Francisco - SNN Shannon

SFOSNN

San Francisco

Mon 7/9

00:35-07:30

1 stop22h 55m

Shannon

Fri 18/9

09:30-15:35

1 stop14h 05m

€703

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Shannon from

How to get the cheapest flight ticket from California to Shannon, Clare

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Shannon, Clare?

The month of October is another great option to travel to Shannon, Clare, with average flight prices from California averaging around €558.

Cheap California to Shannon, Clare flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from California to Shannon, Clare

Fastest flight time

14h 30m

Direct flights

None
The fastest flight from California to Shannon, Clare takes 14h 30m
There are no direct flights from California to Shannon, Clare. There are no popular flight routes from California to Shannon, Clare.
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Frequently asked questions about flying from California to Shannon, Clare

  • When did momondo last update prices for flights from California to Shannon Airport?

    Prices for flights from California to Shannon Airport are updated daily.

  • How old do you have to be to fly from California to Shannon Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from California to Shannon Airport.

  • What documentation or ID do you need to fly to Shannon Airport?

    The travel and health documents you'll need for your trip to Shannon Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Shannon Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Shannon?

Book flights to Shannon if you plan to visit one of these locations
Limerick
Ennis
Tipperary
Killaloe
Lahinch
Nenagh
Adare
Bunratty

Why use momondo?

Why should I use momondo to find a flight deal from California to Shannon?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from California to Shannon. momondo saves you time and could save you money on your trip.

Can I find flights from California to Shannon with flexible booking policies on momondo?

All flight searches from California to Shannon on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from California to Shannon?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from California to Shannon.

I’m not ready to book a flight from California to Shannon right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Shannon, momondo offers a useful price alert feature which will track prices for flights to Shannon from California and alert you when they change.

An easier way to manage your Shannon, Clare trip

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