Cheap flights from San Francisco to Shannon from $298
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Shannon departing on 7/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from San Francisco to Shannon
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
British Airways flights from San Francisco to Shannon, Clare
Our best British Airways deals on San Francisco to Shannon, Clare flight tickets
United Airlines flights from San Francisco to Shannon, Clare
Our best United Airlines deals on San Francisco to Shannon, Clare flight tickets
See travel insights to Shannon from
How to get the cheapest flight ticket from San Francisco 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?
In general, October is the cheapest month to fly from San Francisco to Shannon, Clare. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $711. If you are unable to visit Shannon, Clare during the month of October, then departing from San Francisco during the month January is also very affordable. Most momondo users find prices during this month for around $731.
What is the cheapest day to depart on your flight to Shannon, Clare?
The cheapest day to depart from San Francisco to Shannon, Clare is on a Monday when prices can be found for as low as $882. The most expensive day to fly to Shannon, Clare is Sunday, with ticket prices averaging around $1,144.
What is the cheapest time of day to depart on your flight to Shannon, Clare?
Our data shows that the cheapest San Francisco to Shannon, Clare flights are usually those with departure times in the afternoon. Our users have found flights to Shannon, Clare in the afternoon for as low as $921. Flights in the morning are often more expensive with an average ticket price of $984.
How far in advance should I book a flight to Shannon, Clare?
You are more likely to see cheaper flights to Shannon, Clare from San Francisco when booking 12 weeks ahead of your departure date. In general, you can expect to find flights to Shannon, Clare for around $936 when searching 12 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Shannon, Clare from San Francisco for as low as $776 on momondo.
What is the cheapest airline that flies from San Francisco to Shannon?
United Airlines, American Airlines, and KLM are the most popular carriers operating from San Francisco to Shannon
What airlines fly to Shannon, Clare?
United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Shannon, Clare from San Francisco according to our data. United Airlines is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Shannon, Clare. Keep in mind that there are 7 different airlines that fly to Shannon, Clare on a routine basis, so you have a few additional options to choose from.
When to book flights from San Francisco to Shannon, Clare
Cheap San Francisco to Shannon, Clare (SFO to SNN) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from San Francisco to Shannon, Clare
How far is San Francisco to Shannon by plane?
Shannon is 5024.6 mi away from San Francisco. 12h 55m is a normal flight duration for this route.
When did momondo last update prices for flights from San Francisco Airport to Shannon Airport?
Prices for flights from San Francisco Airport to Shannon Airport were last updated today.
How many operators does momondo search for flights from San Francisco Airport to Shannon Airport?
As of June 2025, there are 6 operators available to choose from for flights from San Francisco Airport to Shannon Airport.
How old do you have to be to fly from San Francisco Airport 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 San Francisco Airport 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 license 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.
What is the most popular airline from San Francisco to Shannon, Clare?
momondo data reveals that the most frequently booked airline on the route from San Francisco to Shannon, Clare is United Airlines, representing 59% of all bookings. The subsequent popular airlines are Delta at 14%, American Airlines at 13%, and British Airways at 5%.
Best airlines flying from San Francisco to Shannon, Clare
Compare and see reviews for airlines that fly from San Francisco to Shannon, Clare with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $578 | Free Cancellation | Rating 7.5 1,463 reviews | |||
| PriceFrom $592 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $664 | Free Cancellation | Rating 8.0 7,950 reviews | |||
| PriceFrom $710 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $727 | Free Cancellation | Rating 7.1 1,117 reviews | |||
| PriceFrom $793 | Free Cancellation | Rating 6.6 7,008 reviews |
Traveling to a place near Shannon?
Book flights to Shannon if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from San Francisco to Shannon?
It is quick and easy to find San Francisco to Shannon flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Shannon that suits you.
Can I find flights from San Francisco to Shannon with flexible booking policies on momondo?
All flight searches from San Francisco to Shannon on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from San Francisco to Shannon?
Once you have performed a search for San Francisco to Shannon flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from San Francisco to Shannon right now. Can momondo alert me if prices change?
If you are not ready to book a flight from San Francisco to Shannon now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Shannon and let you know when they change.