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Find cheap one-way flights from Shannon to San Francisco starting at US$625.

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • One way
  • Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to book flights from Shannon to San Francisco?

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Cheapest airlines flights from Shannon to San Francisco

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Aer Lingus
From US$487
American Airlines
From US$675
British Airways
From US$694
United Airlines
From US$1,103
Lufthansa
From US$1,104
Air Canada
From US$1,189
KLM
From US$1,206
ANA airlines

Find more flights and airlines

Find cheap flights from Shannon to San Francisco by different airports

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Shannon to San Francisco.

  • Cheapest
    Aer Lingus
    SNN
    21:25
    52h 15m
    2 transfer
    SFO
    17:40
    Shannon Airport - San Francisco International Airport
    Tue, May 14Aer Lingus
    US$487
  • Aer Lingus
    SNN
    21:25
    52h 15m
    2 transfer
    SFO
    17:40
    Shannon Airport - San Francisco International Airport
    Tue, May 14Aer Lingus
    US$487
    Find More Flights

Frequently Asked Questions

  • When are flight tickets from Shannon (SNN) to San Francisco (SFO) the cheapest?

    Airlines adjust prices for flights from Shannon to San Francisco based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much do flights from Shannon (SNN) to San Francisco (SFO) cost?

    According to Trip.com's data, the lowest price is around $1,174.
  • What is the transportation method from the main airport to downtown in San Francisco?

    • The distance from San Francisco International Airport to downtown is about 17km. It takes about 30 minutes by taxi.

Shannon to San Francisco Flight Information

Cheapest nonstop flight price

$625

Off-season for travel

November

Peak season for travel

September