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SNN - SFO

$427 Find cheap flights from Shannon to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Shannon to San Francisco departing on 6/22. 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.
1 adult
0 bags
Sat 6/29
Sat 7/6

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Shannon to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Shannon to San Francisco, as well as popular online travel agencies
In the last 7 days travelers have searched 42,686,544 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Flights from Shannon to San Francisco - Travel Insights & Trends

Get data-powered insights and trends into flights from Shannon to San Francisco to help you find the cheapest flights, the best time to fly and much more.

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

The average price of all flights from Shannon to San Francisco clicked on KAYAK for each day over the last 12 months.
When flying from Shannon to San Francisco, you should consider leaving on a Monday and avoid Fridays if you are looking for the best rates. For your return to Shannon, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.

Good to know

Low season

April

High season

June

Cheapest flight

$427
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from Shannon to San Francisco

When to book flights from Shannon to San Francisco

Are your dates flexible? Find out the best times to travel from Shannon to San Francisco 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.

FAQs for booking flights from Shannon to San Francisco

  • What is the cheapest flight from Shannon to San Francisco?

    In the last 3 days, the lowest price for a flight from Shannon to San Francisco was $427 for a one-way ticket.

  • Do I need a passport to fly between Shannon and San Francisco?

    A passport is required to fly from Shannon to San Francisco.

  • Which airports will I be using when flying from Shannon to San Francisco?

    On your way to San Francisco, you’ll fly out from Shannon. You’ll be landing at San Francisco.

  • Which aircraft models fly most regularly from Shannon to San Francisco?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Shannon to San Francisco?

    SkyTeam, and oneworld are the airline alliances operating flights between Shannon and San Francisco, with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Shannon to San Francisco?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Shannon to San Francisco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Shannon to San Francisco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Shannon is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Shannon to San Francisco?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back to Shannon with another airline. Booking your flights between Shannon and SFO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Shannon to San Francisco?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Shannon up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airline flying from Shannon to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Shannon to San Francisco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Shannon to San Francisco? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 10777 reviews
8.1Crew
7.7Boarding
7.2Comfort
7.1Entertainment
6.7Food
Airline reviews

I was not expecting much as i was not in a premium cabin. I was pleasantly surprised that the seat in economy plus was spacious and food was ample. Party of 5 with 2 parents and 3 kids.

10.0 ExcellentAnonymous, May 2024SIN - SFO
Read more about United Airlines reviews

I was not expecting much as i was not in a premium cabin. I was pleasantly surprised that the seat in economy plus was spacious and food was ample. Party of 5 with 2 parents and 3 kids.

Outstanding in all respects. Early boarding left early arrived early. We were in business class, so was perfectly fine.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

I really do not like the basic in basic economy.

Marked by flight delays on all segments of the trip. Food in first class cabin was mediocre and overhead cabin storage was not adequate. Overall, the premium charge for first class cabin was poor and over hyped. This will be our last flight with UA.

I’ve had a couple flights this week on United that were delayed by an hour or more

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

My bag was lost with my medicine and I am very inconvenienced. I don’t know what happened, however I want you to do a better job on getting people’s bag back

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

So so. Terrible aircraft choice for that leg of the flight.

Book cheap flights from Shannon to San Francisco

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Shannon to San Francisco found on KAYAK in the last 72 hours.
6/22Sat
3 stops
43h 49mSNN-SFO
$427
6/22Sat
2 stops
34h 50mSNN-SFO
$471
9/5Thu
1 stopKLM
18h 23mSNN-SFO
$675
6/22Sat
1 stopAmerican Airlines
17h 45mSNN-SFO
$1,089
6/22Sat
3 stops
35h 20mSNN-SFO
$1,491
6/22Sat
2 stops
35h 20mSNN-SFO
$1,498
6/22Sat
1 stop
17h 45mSNN-SFO
$3,378

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Shannon - San Francisco Flights

Departure:

Shannon (SNN)Ireland

Destination:

San Francisco (SFO)United States

Return flight deals:

San Francisco - Shannon

Cabin classes: