In terms of precipitation, rainfall in Shannon, Clare ranges from 2.3 - 4.1 inches per month. October is typically the wettest month, when rainfall can reach 4.1 in. April is typically the driest time to visit Shannon, Clare when rainfall is around 2.3 in.

If weather is an important factor for your trip to Shannon, Clare, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 42.8 F).

How far in advance should I book a flight from Oakland, California to Shannon, Clare?

Travelers have found it’s best to book a flight 16 days in advance to save up to 99% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 16 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Oakland, California to Shannon, Clare 1-2 weeks in advance for as low as $975, or $1,180 for flights within the next 24 hours.

What is the cheapest month to fly from Oakland, California to Shannon, Clare?

Our data shows that October tends to be the cheapest month to fly to Shannon, Clare from Oakland, California. Users have commonly found prices around $938 for the month, but tickets can be as low as $678. Due to multiple factors, prepare for potentially higher prices in June.

What is the cheapest time of day to fly from OAK to SNN?

When flying from Oakland, California to Shannon, Clare, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Oakland to Shannon that include hotel bookings?

Yes. In addition to deals on Oakland to Shannon flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Oakland to Shannon?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Oakland to Shannon.

Can I find deals for business class flights from Oakland to Shannon?

Yes. Cheapflights offers flight deals from Oakland 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.

$533+ Flights from Oakland, CA to Shannon

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Cheap flight deals from Oakland to Shannon

Round-trip from	$906 (Ovago)
One-way from	$533 (Justfly.com)
Popular in	June
Cheapest in	October
Average price	$977

From Oakland to Shannon

Search Deals

One-way flight from Oakland to Shannon

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($101 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($26 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from Oakland to Shannon

Cheapest flights from Oakland to Shannon
Explore the most affordable flight options available from Oakland to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Thu 12/112:35 pmOAK - SNN

2 stops20h 50mBritish Airways

Sun 12/147:50 amSNN - OAK

2 stops19h 24mBritish Airways

Deal found 7/27

$906

Best flights from Oakland to Shannon
Discover carefully curated flight deals from Oakland to Shannon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Thu 12/112:35 pmOAK - SNN

2 stops20h 50mBritish Airways

Sun 12/147:50 amSNN - OAK

2 stops19h 24mBritish Airways

Deal found 7/27

$906

Last-minute flights from Oakland to Shannon
Discover last-minute flight deals from Oakland to Shannon. Data last updated July 29, 2025 and is based on user searches.

Mon 8/112:38 pmOAK - SNN

2 stops21h 57mBritish Airways

Mon 8/187:40 amSNN - OAK

2 stops22h 26mBritish Airways

Deal found 7/29

$1,490

One-way flights from Oakland to Shannon
Search for one-way flight options from Oakland to Shannon. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Tue 10/76:40 amOAK - SNN

2 stops25h 30mBritish Airways

Deal found 7/29

$533

Fly from

Fly to

Route

Depart

Return

Price

OaklandShannon

OAK - SNN

OAKSNN

Oakland

Thu 12/11

2:35 pm-7:25 pm

2 stops20h 50m

Shannon

Sun 12/14

7:50 am-7:14 pm

2 stops19h 24m

$906

OaklandShannon

OAK - SNN

OAKSNN

Oakland

Tue 10/7

6:40 am-4:10 pm

2 stops25h 30m

$533

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from Oakland to Shannon

Have a flexible travel schedule? Discover the best time to fly to Shannon from Oakland 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.

Cheapflights Insights

Everything you need to know about your flight from Oakland to Shannon

What is the cheapest month to book a flight from Oakland, California to Shannon, Clare?

Currently, February is the cheapest month in which you can book a flight from Oakland, California to Shannon, Clare (average of $533). Flying from Oakland, California to Shannon, Clare in June is currently the most expensive (average of $932). 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.

Reviews of airlines servicing Shannon

Read reviews from past customers who have flown British Airways from Oakland to Shannon. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

British Airways

6.6

Okay

7,208 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,May 2025

LAX - LHR

Entertainment system did not work. Seems like Wi-Fi should have been comped at hat point. Boarding at Marco Polo in Venice was terrible. Insisted on gate checking our bag but not others! Connection was confused and flight was very late.

British Airways

6.6

Okay

7,208 reviews

British Airways

6.6

Okay

7,208 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,May 2025

LAX - LHR

Related info for your journey

Can I find deals for flights from Oakland to Shannon that include hotel bookings?
Yes. In addition to deals on Oakland to Shannon flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Oakland to Shannon?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Oakland to Shannon.
Can I find deals for business class flights from Oakland to Shannon?
Yes. Cheapflights offers flight deals from Oakland 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.
What is the cheapest month to book a flight from Oakland, California to Shannon, Clare?
Currently, February is the cheapest month in which you can book a flight from Oakland, California to Shannon, Clare (average of $533). Flying from Oakland, California to Shannon, Clare in June is currently the most expensive (average of $932). 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

Ennis

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$533+ Cheap flights from Oakland, CA (OAK) to Shannon (SNN)

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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Oakland to Shannon with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Oakland to Shannon

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Oakland to Shannon

Cheapest flights from Oakland to ShannonExplore the most affordable flight options available from Oakland to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Explore the most affordable flight options available from Oakland to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Oakland to Shannon that are best for you.

Best time to book a flight from Oakland to Shannon

Have a flexible travel schedule? Discover the best time to fly to Shannon from Oakland with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Oakland to Shannon

What is the cheapest month to book a flight from Oakland, California to Shannon, Clare?

Reviews of airlines servicing Shannon

Read reviews from past customers who have flown British Airways from Oakland to Shannon. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Oakland 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 deals for flights from Oakland to Shannon that include hotel bookings?

How can I find direct flights from Oakland to Shannon?

Can I find deals for business class flights from Oakland to Shannon?

What is the cheapest month to book a flight from Oakland, California to Shannon, Clare?

Traveling to a place near Shannon?

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

Alternative routes for Oakland to Shannon

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Cheapest flights from Oakland to Shannon
Explore the most affordable flight options available from Oakland to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.