$755+ Cheap flights from San Francisco (SFO) to Shannon (SNN)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/30. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SNN
Nov 12 — Nov 191
Round-trip
1 adult, Economy
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Find cheap flights from San Francisco to Shannon with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San Francisco to Shannon
Cheapest
Best
Last-minute
Cheapest flights from San Francisco to ShannonExplore the most affordable flight options available from San Francisco to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 13, 2026.
Explore the most affordable flight options available from San Francisco to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 13, 2026.
This Mytrip deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/304:45 pm -
2 stops18h 40m
Sun 12/68:05 pm -
2 stops26h 45m
Deal found 10/9![Multiple Airlines logo]()
$755
This United Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1011:55 pm -
1 stop26h 20m
Fri 10/2312:30 pm -
1 stop14h 44m
Deal found 10/9![United Airlines logo]()
$913
This oojo deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/245:20 pm -
2 stops18h 05m
Tue 12/18:05 pm -
2 stops27h 30m
Deal found 10/10![Aer Lingus logo]()
$940
This oojo deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/85:20 pm -
2 stops18h 05m
Wed 11/188:05 pm -
2 stops51h 30m
Deal found 10/11![Aer Lingus logo]()
$941
This Cheapflightsfares deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/85:20 pm -
2 stops34h 10m
Fri 11/138:05 pm -
2 stops27h 30m
Deal found 10/9![Aer Lingus logo]()
$947
This FlightHub deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/811:58 pm -
1 stop22h 12m
Wed 11/182:40 pm -
1 stop17h 14m
Deal found 10/8![Multiple Airlines logo]()
$955
This oojo deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/225:20 pm -
2 stops18h 05m
Tue 12/17:50 am -
2 stops39h 45m
Deal found 10/11![Aer Lingus logo]()
$971
This Mytrip deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/246:15 am -
3 stops31h 15m
Tue 12/18:05 pm -
3 stops33h 28m
Deal found 10/10![Multiple Airlines logo]()
$974
This United Airlines deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1110:35 am -
2 stops15h 40m
Sat 10/2412:30 pm -
1 stop14h 44m
Deal found 10/10![United Airlines logo]()
$983
This Cheapflightsfares deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/88:55 am -
2 stops18h 35m
Wed 11/187:50 am -
1 stop15h 05m
Deal found 10/8![British Airways logo]()
$1,008
Best flights from San Francisco to ShannonDiscover carefully curated flight deals from San Francisco to Shannon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 13, 2026.
Discover carefully curated flight deals from San Francisco to Shannon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 13, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/85:20 pm -
2 stops34h 10m
Fri 11/138:05 pm -
2 stops27h 30m
Deal found 10/12![Aer Lingus logo]()
$947
This Mytrip deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/246:15 am -
3 stops31h 15m
Tue 12/15:30 pm -
2 stops31h 00m
Deal found 10/10![Multiple Airlines logo]()
$1,009
This British Airways deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/85:25 pm -
1 stop15h 20m
Thu 11/197:50 am -
1 stop15h 05m
Deal found 10/8![British Airways logo]()
$1,029
This American Airlines deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/222:07 pm -
2 stops18h 38m
Tue 12/12:40 pm -
1 stop18h 07m
Deal found 10/11![American Airlines logo]()
$1,078
This Air Canada deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/292:45 pm -
2 stops19h 00m
Mon 11/28:05 pm -
2 stops33h 25m
Deal found 10/12![Air Canada logo]()
$1,183
This British Airways deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/91:57 pm -
2 stops18h 48m
Thu 11/197:50 am -
1 stop15h 05m
Deal found 10/9![British Airways logo]()
$1,033
This British Airways deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/95:25 pm -
1 stop15h 20m
Fri 11/207:50 am -
1 stop15h 05m
Deal found 10/8![British Airways logo]()
$1,078
This British Airways deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/84:10 pm -
2 stops16h 35m
Fri 11/207:50 am -
1 stop15h 05m
Deal found 10/8![British Airways logo]()
$1,082
Last-minute flights from San Francisco to ShannonDiscover last-minute flight deals from San Francisco to Shannon. Data last updated October 13, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Shannon. Data last updated October 13, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1011:55 pm -
1 stop26h 20m
Fri 10/2312:30 pm -
1 stop14h 44m
Deal found 10/9![United Airlines logo]()
$913
This United Airlines deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1110:35 am -
2 stops15h 40m
Sat 10/2412:30 pm -
1 stop14h 44m
Deal found 10/10![United Airlines logo]()
$983
This oojo deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/85:20 pm -
2 stops18h 05m
Wed 11/188:05 pm -
2 stops51h 30m
Deal found 10/11![Aer Lingus logo]()
$941
This Cheapflightsfares deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/85:20 pm -
2 stops34h 10m
Fri 11/138:05 pm -
2 stops27h 30m
Deal found 10/9![Aer Lingus logo]()
$947
This FlightHub deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/811:58 pm -
1 stop22h 12m
Wed 11/182:40 pm -
1 stop17h 14m
Deal found 10/8![Multiple Airlines logo]()
$955
This Cheapflightsfares deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/88:55 am -
2 stops18h 35m
Wed 11/187:50 am -
1 stop15h 05m
Deal found 10/8![British Airways logo]()
$1,008
This oojo deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/225:20 pm -
2 stops18h 05m
Tue 12/17:50 am -
2 stops39h 45m
Deal found 10/11![Aer Lingus logo]()
$971
This oojo deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/245:20 pm -
2 stops18h 05m
Tue 12/18:05 pm -
2 stops27h 30m
Deal found 10/10![Aer Lingus logo]()
$940
This Mytrip deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/246:15 am -
3 stops31h 15m
Tue 12/18:05 pm -
3 stops33h 28m
Deal found 10/10![Multiple Airlines logo]()
$974
This Mytrip deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/304:45 pm -
2 stops18h 40m
Sun 12/68:05 pm -
2 stops26h 45m
Deal found 10/9![Multiple Airlines logo]()
$755
Find flight deals from San Francisco to Shannon
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Shannon (SNN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $724 (United Airlines) |
Popular in | November |
Cheapest in | January |
Average price | $1,060 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Francisco to Shannon that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 13, 2026.
Use the filters below to find and compare flights from San Francisco to Shannon that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San FranciscoShannon
SFO San Francisco - SNN Shannon
SFOSNN
San Francisco
Sun 11/8
5:20 pm-11:30 am
2 stops34h 10m
Shannon
Fri 11/13
8:05 pm-3:35 pm
2 stops27h 30m
$947
San FranciscoShannon
SFO San Francisco - SNN Shannon
SFOSNN
San Francisco
Tue 11/24
6:15 am-9:30 pm
3 stops31h 15m
Shannon
Tue 12/1
5:30 pm-4:30 pm
2 stops31h 00m
$1,009
Quickest round-trip
San FranciscoShannon
SFO San Francisco - SNN Shannon
SFOSNN
San Francisco
Sun 11/8
5:25 pm-4:45 pm
1 stop15h 20m
Shannon
Thu 11/19
7:50 am-2:55 pm
1 stop15h 05m
$1,029
San FranciscoShannon
SFO San Francisco - SNN Shannon
SFOSNN
San Francisco
Mon 11/9
1:57 pm-4:45 pm
2 stops18h 48m
Shannon
Thu 11/19
7:50 am-2:55 pm
1 stop15h 05m
$1,033
San FranciscoShannon
SFO San Francisco - SNN Shannon
SFOSNN
San Francisco
Sun 11/22
2:07 pm-4:45 pm
2 stops18h 38m
Shannon
Tue 12/1
2:40 pm-12:47 am
1 stop18h 07m
$1,078
San FranciscoShannon
SFO San Francisco - SNN Shannon
SFOSNN
San Francisco
Mon 11/9
5:25 pm-4:45 pm
1 stop15h 20m
Shannon
Fri 11/20
7:50 am-2:55 pm
1 stop15h 05m
$1,078
San FranciscoShannon
SFO San Francisco - SNN Shannon
SFOSNN
San Francisco
Sun 11/8
4:10 pm-4:45 pm
2 stops16h 35m
Shannon
Fri 11/20
7:50 am-2:55 pm
1 stop15h 05m
$1,082
San FranciscoShannon
SFO San Francisco - SNN Shannon
SFOSNN
San Francisco
Thu 10/29
2:45 pm-4:45 pm
2 stops19h 00m
Shannon
Mon 11/2
8:05 pm-9:30 pm
2 stops33h 25m
$1,183
Sorted by cheapest first
Compare providers for flights from San Francisco to Shannon
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Shannon in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Francisco-Shannon, Clare flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Shannon, Clare flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Shannon, Clare flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Francisco-Shannon, Clare flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Shannon, Clare flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from San Francisco to Shannon
Have a flexible travel schedule? Discover the best time to fly to Shannon from San Francisco with our price prediction graph.
SFO-SNN
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 San Francisco to Shannon
Reviews of airlines servicing Shannon
Get insights into the airlines that provide service to Shannon. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Shannon. Reviews last updated October 13, 2026.
See what other customers who have flown with Air France,United Airlines, andAmerican Airlines from San Francisco to Shannon have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.5
Entertainment
7.0
Food
7.1
Overall
7.5
Crew
8.2
Comfort
7.4
Reviews
1 / 20
2.0
MediocreMichael,Aug 2026
CDG - AMS
Boarding
7.5
Entertainment
7.0
Food
7.1
Overall
7.5
Crew
8.2
Comfort
7.4
Reviews
1 / 20
2.0
MediocreMichael,Aug 2026
CDG - AMS
Boarding
7.5
Entertainment
7.0
Food
7.1
Overall
7.5
Crew
8.2
Comfort
7.4
Reviews
1 / 20
2.0
MediocreMichael,Aug 2026
CDG - AMS
Boarding
7.5
Entertainment
7.0
Food
7.1
Overall
7.5
Crew
8.2
Comfort
7.4
Reviews
1 / 20
2.0
MediocreMichael,Aug 2026
CDG - AMS
Boarding
7.5
Entertainment
7.0
Food
7.1
Overall
7.5
Crew
8.2
Comfort
7.4
Reviews
1 / 20
2.0
MediocreMichael,Aug 2026
CDG - AMS
Boarding
7.5
Entertainment
7.0
Food
7.1
Overall
7.5
Crew
8.2
Comfort
7.4
Reviews
1 / 20
2.0
MediocreMichael,Aug 2026
CDG - AMS
Related info for your journey
Find useful and relevant information for your journey from San Francisco to Shannon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for San Francisco to Shannon
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Complete your trip
Complete your trip to Shannon by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from San Francisco to Shannon by cabin class
Find flights from San Francisco to Shannon, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Francisco and Shannon flights
Browse other San Francisco and Shannon flight options. Last updated on October 13, 2026.
Other flights from San Francisco
Browse through other flights departing from San Francisco. Flights are based on user searches made on Cheapflights and were last updated on October 13, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Shannon
Explore flights to Shannon departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 13, 2026.
Top 5 airlines flying from San Francisco to Shannon
Discover the top 5 airlines that operate flights from San Francisco to Shannon. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$468 | Average$1,046 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$593 | Average$1,060 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$660 | Average$931 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$730 | Average$990 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$875 | Average$987 | FlexibilityNo cancel fee | On-time76% |