$375+ Cheap flights from San Francisco (SFO) to Shannon (SNN)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SNN
Aug 13 — Aug 201
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
One-way
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 July 14, 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 July 14, 2026.
This Air France deal was found by Cheapflights users on 7/13. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/67:00 am
SFO
- SNN
1 stop20h 10m
Multiple Airlines
Sat 8/221:05 pm
SNN
- SFO
1 stop29h 10m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$749
This United deal was found by Cheapflights users on 7/11. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:00 am
SFO
- SNN
1 stop17h 30m
Multiple Airlines
Sat 9/512:00 pm
SNN
- SFO
1 stop32h 40m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$755
This United Airlines deal was found by Cheapflights users on 7/13. 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.
Wed 8/265:00 am
SFO
- SNN
1 stop18h 30m
United Airlines
Wed 9/912:30 pm
SNN
- SFO
1 stop18h 07m
United Airlines
Deal found 7/13![United Airlines logo]()
$757
This United Airlines deal was found by Cheapflights users on 7/9. 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.
Mon 8/247:00 am
SFO
- SNN
2 stops19h 15m
United Airlines
Mon 8/319:30 am
SNN
- SFO
2 stops16h 12m
United Airlines
Deal found 7/9![United Airlines logo]()
$761
This Delta deal was found by Cheapflights users on 7/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/118:55 am
SFO
- SNN
1 stop18h 15m
Delta
Sat 8/221:05 pm
SNN
- SFO
1 stop29h 10m
Delta
Deal found 7/12![Delta logo]()
$762
This Air France deal was found by Cheapflights users on 7/10. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:13 am
SFO
- SNN
2 stops20h 57m
Multiple Airlines
Tue 9/151:05 pm
SNN
- SFO
2 stops41h 10m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$763
This KLM deal was found by Cheapflights users on 7/13. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:00 am
SFO
- SNN
1 stop20h 10m
KLM
Mon 9/71:05 pm
SNN
- SFO
1 stop29h 12m
KLM
Deal found 7/13![KLM logo]()
$764
This Air France deal was found by Cheapflights users on 7/10. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/152:36 pm
SFO
- SNN
2 stops36h 34m
Multiple Airlines
Sat 8/291:05 pm
SNN
- SFO
2 stops35h 08m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$765
This Air France deal was found by Cheapflights users on 7/13. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:13 am
SFO
- SNN
2 stops20h 57m
Air France
Sun 9/61:05 pm
SNN
- SFO
2 stops34h 45m
Air France
Deal found 7/13![Air France logo]()
$767
This Air France deal was found by Cheapflights users on 7/9. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:13 am
SFO
- SNN
2 stops20h 57m
Multiple Airlines
Sat 8/221:05 pm
SNN
- SFO
1 stop29h 10m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$768
This United Airlines deal was found by Cheapflights users on 7/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/305:00 am
SFO
- SNN
2 stops18h 30m
United Airlines
Tue 9/1512:30 pm
SNN
- SFO
2 stops18h 25m
United Airlines
Deal found 7/12![United Airlines logo]()
$792
This United Airlines deal was found by Cheapflights users on 7/13. 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 8/2910:42 pm
SFO
- SNN
2 stops24h 48m
United Airlines
Thu 9/179:30 am
SNN
- SFO
1 stop14h 05m
United Airlines
Deal found 7/13![United Airlines logo]()
$806
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 July 14, 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 July 14, 2026.
This United deal was found by Cheapflights users on 7/11. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:00 am
SFO
- SNN
1 stop17h 30m
Multiple Airlines
Sat 9/512:00 pm
SNN
- SFO
1 stop32h 40m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$755
This United Airlines deal was found by Cheapflights users on 7/14. 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.
Tue 8/2512:35 am
SFO
- SNN
1 stop22h 55m
United Airlines
Wed 9/29:30 am
SNN
- SFO
1 stop14h 05m
United Airlines
Deal found 7/14![United Airlines logo]()
$757
This KLM deal was found by Cheapflights users on 7/13. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2511:49 am
SFO
- SNN
1 stop15h 21m
KLM
Mon 9/71:05 pm
SNN
- SFO
1 stop29h 12m
KLM
Deal found 7/13![KLM logo]()
$764
This KLM deal was found by Cheapflights users on 7/10. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/11:45 pm
SFO
- SNN
1 stop13h 25m
Multiple Airlines
Wed 9/161:05 pm
SNN
- SFO
1 stop17h 27m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$757
This United Airlines deal was found by Cheapflights users on 7/9. 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.
Mon 8/245:00 am
SFO
- SNN
1 stop18h 30m
United Airlines
Mon 8/3112:30 pm
SNN
- SFO
1 stop16h 45m
United Airlines
Deal found 7/9![United Airlines logo]()
$757
This United Airlines deal was found by Cheapflights users on 7/9. 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 8/2212:35 am
SFO
- SNN
1 stop22h 55m
United Airlines
Sun 8/309:30 am
SNN
- SFO
1 stop17h 19m
United Airlines
Deal found 7/9![United Airlines logo]()
$757
This KLM deal was found by Cheapflights users on 7/13. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:13 am
SFO
- SNN
2 stops20h 57m
Multiple Airlines
Tue 9/151:05 pm
SNN
- SFO
1 stop17h 27m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$761
This United Airlines deal was found by Cheapflights users on 7/14. 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.
Wed 8/268:15 am
SFO
- SNN
1 stop15h 15m
United Airlines
Sat 9/59:30 am
SNN
- SFO
1 stop15h 53m
United Airlines
Deal found 7/14![United Airlines logo]()
$757
Last-minute flights from San Francisco to ShannonDiscover last-minute flight deals from San Francisco to Shannon. Data last updated July 14, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Shannon. Data last updated July 14, 2026 and is based on user searches.
This Air France deal was found by Cheapflights users on 7/13. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/67:00 am
SFO
- SNN
1 stop20h 10m
Multiple Airlines
Sat 8/221:05 pm
SNN
- SFO
1 stop29h 10m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$749
This Delta deal was found by Cheapflights users on 7/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/118:55 am
SFO
- SNN
1 stop18h 15m
Delta
Sat 8/221:05 pm
SNN
- SFO
1 stop29h 10m
Delta
Deal found 7/12![Delta logo]()
$762
This Air France deal was found by Cheapflights users on 7/9. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:13 am
SFO
- SNN
2 stops20h 57m
Multiple Airlines
Sat 8/221:05 pm
SNN
- SFO
1 stop29h 10m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$768
This Air France deal was found by Cheapflights users on 7/10. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/152:36 pm
SFO
- SNN
2 stops36h 34m
Multiple Airlines
Sat 8/291:05 pm
SNN
- SFO
2 stops35h 08m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$765
This United Airlines deal was found by Cheapflights users on 7/9. 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.
Mon 8/247:00 am
SFO
- SNN
2 stops19h 15m
United Airlines
Mon 8/319:30 am
SNN
- SFO
2 stops16h 12m
United Airlines
Deal found 7/9![United Airlines logo]()
$761
This KLM deal was found by Cheapflights users on 7/13. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:00 am
SFO
- SNN
1 stop20h 10m
KLM
Mon 9/71:05 pm
SNN
- SFO
1 stop29h 12m
KLM
Deal found 7/13![KLM logo]()
$764
This Air France deal was found by Cheapflights users on 7/13. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:13 am
SFO
- SNN
2 stops20h 57m
Air France
Sun 9/61:05 pm
SNN
- SFO
2 stops34h 45m
Air France
Deal found 7/13![Air France logo]()
$767
This Air France deal was found by Cheapflights users on 7/13. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/255:36 am
SFO
- SNN
2 stops21h 34m
Multiple Airlines
Thu 9/31:05 pm
SNN
- SFO
2 stops35h 08m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$763
This United deal was found by Cheapflights users on 7/11. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:00 am
SFO
- SNN
1 stop17h 30m
Multiple Airlines
Sat 9/512:00 pm
SNN
- SFO
1 stop32h 40m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$755
This United Airlines deal was found by Cheapflights users on 7/13. 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.
Wed 8/265:00 am
SFO
- SNN
1 stop18h 30m
United Airlines
Wed 9/912:30 pm
SNN
- SFO
1 stop18h 07m
United Airlines
Deal found 7/13![United Airlines logo]()
$757
This United Airlines deal was found by Cheapflights users on 7/13. 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 8/2911:59 pm
SFO
- SNN
2 stops23h 31m
United Airlines
Thu 9/179:30 am
SNN
- SFO
2 stops16h 12m
United Airlines
Deal found 7/13![United Airlines logo]()
$806
This United Airlines deal was found by Cheapflights users on 7/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/308:23 am
SFO
- SNN
2 stops15h 07m
United Airlines
Tue 9/1512:30 pm
SNN
- SFO
1 stop16h 45m
United Airlines
Deal found 7/12![United Airlines logo]()
$792
One-way flights from San Francisco to ShannonSearch for one-way flight options from San Francisco to Shannon. Find affordable one-way fares based on user searches. Data last updated July 14, 2026.
Search for one-way flight options from San Francisco to Shannon. Find affordable one-way fares based on user searches. Data last updated July 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/51:00 pm
SFO
- SNN
3 stops47h 20m
Multiple Airlines
Deal found 7/12![Multiple Airlines logo]()
$375
This Kiwi.com deal was found by Cheapflights users on 7/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/154:05 pm
SFO
- SNN
3 stops59h 20m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$447
This KAYAK deal was found by Cheapflights users on 7/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/611:44 pm
SFO
- SNN
1 stop21h 41m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$449
This United Airlines deal was found by Cheapflights users on 7/13. 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 9/65:00 am
SFO
- SNN
2 stops18h 30m
United Airlines
Deal found 7/13![United Airlines logo]()
$463
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/319:39 pm
SFO
- SNN
3 stops33h 16m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$484
This oojo deal was found by Cheapflights users on 7/10. 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.
Fri 7/315:35 pm
SFO
- SNN
2 stops33h 45m
Aer Lingus
Deal found 7/10![Aer Lingus logo]()
$515
This United Airlines deal was found by Cheapflights users on 7/10. 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.
Thu 7/3012:50 am
SFO
- SNN
1 stop22h 40m
United Airlines
Deal found 7/10![United Airlines logo]()
$558
This Thrive Travel deal was found by Cheapflights users on 7/10. 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 Thrive Travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/293:50 pm
SFO
- SNN
2 stops20h 45m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$3,848
This BusinessClass deal was found by Cheapflights users on 7/10. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/297:30 pm
SFO
- SNN
1 stop17h 05m
Aer Lingus
Deal found 7/10![Aer Lingus logo]()
$4,166
This BusinessClass deal was found by Cheapflights users on 7/11. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/298:18 am
SFO
- SNN
2 stops19h 02m
British Airways
Deal found 7/11![British Airways logo]()
$4,229
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 July 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $747 (KLM) |
One-way from | $375 (Kiwi.com) |
Popular in | August |
Cheapest in | December |
Average price | $899 |
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 2,558,603 searches. Data last updated July 14, 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 - SNN
SFOSNN
San Francisco
Wed 8/26
6:00 am-7:30 am
1 stop17h 30m
Shannon
Sat 9/5
12:00 pm-12:40 pm
1 stop32h 40m
$755
San FranciscoShannon
SFO - SNN
SFOSNN
San Francisco
Tue 8/25
12:35 am-7:30 am
1 stop22h 55m
Shannon
Wed 9/2
9:30 am-3:35 pm
1 stop14h 05m
$757
Quickest round-trip
San FranciscoShannon
SFO - SNN
SFOSNN
San Francisco
Tue 9/1
1:45 pm-11:10 am
1 stop13h 25m
Shannon
Wed 9/16
1:05 pm-10:32 pm
1 stop17h 27m
$757
San FranciscoShannon
SFO - SNN
SFOSNN
San Francisco
Mon 8/24
5:00 am-7:30 am
1 stop18h 30m
Shannon
Mon 8/31
12:30 pm-9:15 pm
1 stop16h 45m
$757
San FranciscoShannon
SFO - SNN
SFOSNN
San Francisco
Sat 8/22
12:35 am-7:30 am
1 stop22h 55m
Shannon
Sun 8/30
9:30 am-6:49 pm
1 stop17h 19m
$757
San FranciscoShannon
SFO - SNN
SFOSNN
San Francisco
Wed 8/26
8:15 am-7:30 am
1 stop15h 15m
Shannon
Sat 9/5
9:30 am-5:23 pm
1 stop15h 53m
$757
San FranciscoShannon
SFO - SNN
SFOSNN
San Francisco
Tue 9/1
6:13 am-11:10 am
2 stops20h 57m
Shannon
Tue 9/15
1:05 pm-10:32 pm
1 stop17h 27m
$761
San FranciscoShannon
SFO - SNN
SFOSNN
San Francisco
Tue 8/25
11:49 am-11:10 am
1 stop15h 21m
Shannon
Mon 9/7
1:05 pm-10:17 am
1 stop29h 12m
$764
Cheapest one-way
San FranciscoShannon
SFO - SNN
SFOSNN
San Francisco
Mon 10/5
4:30 pm-8:20 pm
2 stops43h 50m
$391
San FranciscoShannon
SFO - SNN
SFOSNN
San Francisco
Sat 8/15
4:05 pm-11:25 am
3 stops59h 20m
$447
Showing 1-10 of 15 resultsSorted 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 July.
| 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
What is the cheapest month to book a flight from San Francisco to Shannon, Clare?
Currently, December is the cheapest month in which you can book a flight from San Francisco to Shannon, Clare (average of $627). Flying from San Francisco to Shannon, Clare in August is currently the most expensive (average of $1,186). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from San Francisco to Shannon, Clare?
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 July 14, 2026.
See what other customers who have flown with Delta,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
8.1
Overall
7.8
Food
7.2
Entertainment
7.8
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Overall
7.8
Food
7.2
Entertainment
7.8
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Overall
7.8
Food
7.2
Entertainment
7.8
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Overall
7.8
Food
7.2
Entertainment
7.8
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Overall
7.8
Food
7.2
Entertainment
7.8
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Overall
7.8
Food
7.2
Entertainment
7.8
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
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.
Traveling to a place near Shannon?
Book flights to Shannon if you plan to visit one of these locationsEnnis
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from San Francisco
Popular flights
Shannon flight routes
Alternative routes for San Francisco to Shannon
See prices for flight routes from nearby airports that may be better suited for you.
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 July 14, 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 July 14, 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 July 14, 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 2,558,603 searches. Data last updated July 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$533 | Average$684 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$590 | Average$993 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$593 | Average$1,067 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$800 | Average$1,163 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$875 | Average$987 | FlexibilityNo cancel fee | On-time76% |