$395+ 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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SNN
Dec 9 — Dec 161
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
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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 November 9, 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 November 9, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 11/6. 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.
Tue 12/15:20 pm -
2 stops18h 05m
Mon 12/148:05 pm -
2 stops27h 30m
Deal found 11/6![Aer Lingus logo]()
$925
This Cheapflightsfares deal was found by Cheapflights users on 11/4. 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 12/65:20 pm -
2 stops18h 05m
Mon 12/218:05 pm -
2 stops27h 30m
Deal found 11/4![Aer Lingus logo]()
$939
This Mytrip deal was found by Cheapflights users on 11/6. 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.
Fri 12/46:30 am -
3 stops25h 15m
Fri 12/116:00 am -
3 stops40h 45m
Deal found 11/6![Multiple Airlines logo]()
$948
This Booking.com deal was found by Cheapflights users on 11/4. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:30 am -
3 stops28h 55m
Thu 12/101:25 pm -
2 stops34h 40m
Deal found 11/4![Multiple Airlines logo]()
$952
This KAYAK deal was found by Cheapflights users on 11/6. 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.
Tue 12/15:20 pm -
2 stops35h 15m
Wed 12/162:00 pm -
1 stop16h 20m
Deal found 11/6![Multiple Airlines logo]()
$991
This Ovago deal was found by Cheapflights users on 11/6. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/15:20 pm -
2 stops35h 15m
Tue 12/152:00 pm -
1 stop16h 20m
Deal found 11/6![Multiple Airlines logo]()
$992
This KAYAK deal was found by Cheapflights users on 11/4. 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.
Wed 11/187:30 am -
1 stop14h 20m
Tue 11/242:00 pm -
1 stop29h 45m
Deal found 11/4![Multiple Airlines logo]()
$993
This Cheapflightsfares deal was found by Cheapflights users on 11/4. 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 12/68:35 pm -
1 stop14h 50m
Mon 12/218:05 pm -
2 stops27h 30m
Deal found 11/4![British Airways logo]()
$1,001
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 November 9, 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 November 9, 2026.
This United Airlines deal was found by Cheapflights users on 11/4. 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 5/410:23 am -
2 stops15h 52m
Tue 5/1112:30 pm -
1 stop16h 06m
Deal found 11/4![United Airlines logo]()
$734
This KAYAK deal was found by Cheapflights users on 11/8. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/136:00 am -
1 stop20h 15m
Thu 4/2212:30 pm -
1 stop14h 59m
Deal found 11/8![Lufthansa logo]()
$826
This United Airlines deal was found by Cheapflights users on 11/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1310:48 am -
2 stops15h 27m
Thu 4/2212:30 pm -
2 stops19h 28m
Deal found 11/8![United Airlines logo]()
$738
This United Airlines deal was found by Cheapflights users on 11/7. 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 4/256:30 am -
2 stops19h 45m
Wed 4/2812:30 pm -
2 stops17h 19m
Deal found 11/7![United Airlines logo]()
$738
This United Airlines deal was found by Cheapflights users on 11/4. 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 4/2710:48 am -
2 stops15h 27m
Tue 5/412:30 pm -
2 stops16h 35m
Deal found 11/4![United Airlines logo]()
$738
This United Airlines deal was found by Cheapflights users on 11/4. 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 5/38:45 am -
2 stops17h 30m
Mon 5/1012:30 pm -
2 stops19h 28m
Deal found 11/4![United Airlines logo]()
$788
Last-minute flights from San Francisco to ShannonDiscover last-minute flight deals from San Francisco to Shannon. Data last updated November 9, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Shannon. Data last updated November 9, 2026 and is based on user searches.
This KAYAK deal was found by Cheapflights users on 11/4. 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.
Wed 11/187:30 am -
1 stop14h 20m
Tue 11/242:00 pm -
1 stop29h 45m
Deal found 11/4![Multiple Airlines logo]()
$993
This Cheapflightsfares deal was found by Cheapflights users on 11/6. 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.
Tue 12/15:20 pm -
2 stops18h 05m
Mon 12/148:05 pm -
2 stops27h 30m
Deal found 11/6![Aer Lingus logo]()
$925
This KAYAK deal was found by Cheapflights users on 11/6. 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.
Tue 12/15:20 pm -
2 stops35h 15m
Wed 12/162:00 pm -
1 stop16h 20m
Deal found 11/6![Multiple Airlines logo]()
$991
This Ovago deal was found by Cheapflights users on 11/6. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/15:20 pm -
2 stops35h 15m
Tue 12/152:00 pm -
1 stop16h 20m
Deal found 11/6![Multiple Airlines logo]()
$992
This Booking.com deal was found by Cheapflights users on 11/4. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:30 am -
3 stops28h 55m
Thu 12/101:25 pm -
2 stops34h 40m
Deal found 11/4![Multiple Airlines logo]()
$952
This Mytrip deal was found by Cheapflights users on 11/6. 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.
Fri 12/46:30 am -
3 stops25h 15m
Fri 12/116:00 am -
3 stops40h 45m
Deal found 11/6![Multiple Airlines logo]()
$948
This Cheapflightsfares deal was found by Cheapflights users on 11/4. 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 12/65:20 pm -
2 stops18h 05m
Mon 12/218:05 pm -
2 stops27h 30m
Deal found 11/4![Aer Lingus logo]()
$939
This Cheapflightsfares deal was found by Cheapflights users on 11/4. 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 12/68:35 pm -
1 stop14h 50m
Mon 12/218:05 pm -
2 stops27h 30m
Deal found 11/4![British Airways logo]()
$1,001
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 November 9, 2026.
Search for one-way flight options from San Francisco to Shannon. Find affordable one-way fares based on user searches. Data last updated November 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Wed 12/24:35 pm -
3 stops30h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$395
This Justfly.com deal was found by Cheapflights users on 11/4. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:30 am -
1 stop14h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$512
This FlightHub deal was found by Cheapflights users on 11/4. 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.
Thu 12/311:12 am -
2 stops21h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![British Airways logo]()
$714
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 November 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $734 (United Airlines) |
One-way from | $395 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $1,069 |
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 November 9, 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
Quickest round-trip
San FranciscoShannon
SFO San Francisco - SNN Shannon
SFOSNN
San Francisco
Thu 12/3
7:30 am-5:50 am
1 stop14h 20m
Shannon
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$512
San FranciscoShannon
SFO San Francisco - SNN Shannon
SFOSNN
San Francisco
Wed 12/2
11:30 am-5:50 am
1 stop34h 20m
Shannon
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$530
San FranciscoShannon
SFO San Francisco - SNN Shannon
SFOSNN
San Francisco
Thu 12/3
11:12 am-4:45 pm
2 stops21h 33m
Shannon
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$714
San FranciscoShannon
SFO San Francisco - SNN Shannon
SFOSNN
San Francisco
Tue 5/4
10:23 am-10:15 am
2 stops15h 52m
Shannon
Tue 5/11
12:30 pm-8:36 pm
1 stop16h 06m
$734
San FranciscoShannon
SFO San Francisco - SNN Shannon
SFOSNN
San Francisco
Tue 4/13
10:48 am-10:15 am
2 stops15h 27m
Shannon
Thu 4/22
12:30 pm-11:58 pm
2 stops19h 28m
$738
San FranciscoShannon
SFO San Francisco - SNN Shannon
SFOSNN
San Francisco
Sun 4/25
6:30 am-10:15 am
2 stops19h 45m
Shannon
Wed 4/28
12:30 pm-9:49 pm
2 stops17h 19m
$738
San FranciscoShannon
SFO San Francisco - SNN Shannon
SFOSNN
San Francisco
Tue 4/27
10:48 am-10:15 am
2 stops15h 27m
Shannon
Tue 5/4
12:30 pm-9:05 pm
2 stops16h 35m
$738
San FranciscoShannon
SFO San Francisco - SNN Shannon
SFOSNN
San Francisco
Mon 5/3
8:45 am-10:15 am
2 stops17h 30m
Shannon
Mon 5/10
12:30 pm-11:58 pm
2 stops19h 28m
$788
San FranciscoShannon
SFO San Francisco - SNN Shannon
SFOSNN
San Francisco
Tue 4/13
6:00 am-10:15 am
1 stop20h 15m
Shannon
Thu 4/22
12:30 pm-7:29 pm
1 stop14h 59m
$826
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 November.
| 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 November 9, 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.
Comfort
7.4
Overall
7.5
Entertainment
7.0
Crew
8.2
Food
7.1
Boarding
7.5
Reviews
1 / 20
8.0
ExcellentGrace,Apr 2026
JFK - CDG
Comfort
7.4
Overall
7.5
Entertainment
7.0
Crew
8.2
Food
7.1
Boarding
7.5
Reviews
1 / 20
8.0
ExcellentGrace,Apr 2026
JFK - CDG
Comfort
7.4
Overall
7.5
Entertainment
7.0
Crew
8.2
Food
7.1
Boarding
7.5
Reviews
1 / 20
8.0
ExcellentGrace,Apr 2026
JFK - CDG
Comfort
7.4
Overall
7.5
Entertainment
7.0
Crew
8.2
Food
7.1
Boarding
7.5
Reviews
1 / 20
8.0
ExcellentGrace,Apr 2026
JFK - CDG
Comfort
7.4
Overall
7.5
Entertainment
7.0
Crew
8.2
Food
7.1
Boarding
7.5
Reviews
1 / 20
8.0
ExcellentGrace,Apr 2026
JFK - CDG
Comfort
7.4
Overall
7.5
Entertainment
7.0
Crew
8.2
Food
7.1
Boarding
7.5
Reviews
1 / 20
8.0
ExcellentGrace,Apr 2026
JFK - CDG
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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Shannon flight routes
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 November 9, 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 November 9, 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 November 9, 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 November 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$468 | Average$891 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$593 | Average$1,067 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$660 | Average$931 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$730 | Average$1,050 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$875 | Average$987 | FlexibilityNo cancel fee | On-time76% |