Cheap Flights from Shannon to San Francisco
No deal from Shannon to San Francisco has cleared our price bar yet. What we have seen on the route is below.
Across 3 months of observations from Shannon to San Francisco, the lowest round-trip fare we recorded was $720, in September. The typical fare was $732. September was the cheapest month we saw and August the dearest.
The most recent price we saw on this route was $720 on British Airways and Aer Lingus, seen Oct 13. It is an unverified observation and may have changed.
See every deal <a href="/from/shannon">from Shannon</a>, <a href="/to/san-francisco">to San Francisco</a>, or the return direction <a href="/from/san-francisco/to/shannon">San Francisco to Shannon</a>.
Latest price we saw: Shannon to San Francisco
The most recent round-trip fare our sweep found on this route. It is not verified and may have changed since the date shown.
| From | Price | Per mile | Travel dates | Airline | Seen | Check price |
|---|---|---|---|---|---|---|
| Shannon (SNN) to San Francisco (SFO) | $720 | 7.1¢ | Dec 21 – Dec 28 | British Airways and Aer Lingus | Oct 13 | Check price |
Price history: Shannon to San Francisco
What we observed by month, from our signals database. Unverified observations, not bookable prices.
| Month | Low | Typical | Sightings |
|---|---|---|---|
| Oct 2026 | $720 | $721 | 3 |
| Sep 2026 | $720 | $720 | 2 |
| Aug 2026 | $732 | $755 | 7 |
Frequently asked questions
How many flight deals from Shannon to San Francisco are on Sparkflights right now?
There are 0 verified deals from Shannon to San Francisco on the board right now. The list refreshes hourly.
What is the lowest price ever seen from Shannon to San Francisco?
The lowest fare we've recorded from Shannon to San Francisco is $720, based on 12 price observations over 3 months.
How much does a flight from Shannon to San Francisco cost?
The typical round-trip fare we observed from Shannon to San Francisco is $732, against a recorded low of $720. These are observations, not quotes.
When is the cheapest month to fly Shannon to San Francisco?
September was the cheapest month we observed from Shannon to San Francisco and August the dearest, over 3 months of data.
What is the current price from Shannon to San Francisco?
The most recent fare our sweep saw from Shannon to San Francisco is $720, on Oct 13. It is an unverified observation rather than a verified deal, so check it before booking.