$417+ Cheap flights from Shannon (SNN) to San Francisco (SFO)
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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — SFO
Dec 4 — Dec 111
Round-trip
1 adult, Economy
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Find cheap flights from Shannon to San Francisco 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 Shannon to San Francisco
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Best
Last-minute
One-way
Cheapest flights from Shannon to San FranciscoExplore the most affordable flight options available from Shannon to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2026.
Explore the most affordable flight options available from Shannon to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2026.
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:50 am -
1 stop15h 05m
Tue 12/85:25 pm -
1 stop15h 20m
Deal found 11/4![British Airways logo]()
$797
This Booking.com deal was found by Cheapflights users on 11/3. 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.
Fri 12/48:05 pm -
1 stop26h 50m
Sun 12/65:25 pm -
1 stop18h 00m
Deal found 11/3![British Airways logo]()
$798
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/28:05 pm -
2 stops28h 25m
Tue 12/87:25 pm -
2 stops18h 05m
Deal found 11/4![Multiple Airlines logo]()
$804
This Expedia deal was found by Cheapflights users on 11/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/38:05 pm -
1 stop26h 50m
Wed 12/98:55 am -
2 stops18h 35m
Deal found 11/1![Multiple Airlines logo]()
$819
This Expedia deal was found by Cheapflights users on 11/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/48:05 pm -
1 stop26h 50m
Sun 12/63:07 pm -
2 stops17h 38m
Deal found 11/3![Multiple Airlines logo]()
$821
This Expedia deal was found by Cheapflights users on 11/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/247:50 am -
2 stops21h 04m
Sat 12/58:55 am -
2 stops18h 35m
Deal found 11/3![Multiple Airlines logo]()
$831
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:50 am -
1 stop15h 05m
Mon 12/78:35 pm -
1 stop14h 50m
Deal found 11/4![Multiple Airlines logo]()
$840
Best flights from Shannon to San FranciscoDiscover carefully curated flight deals from Shannon to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.
Discover carefully curated flight deals from Shannon to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.
This British Airways deal was found by Cheapflights users on 11/3. 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.
Wed 2/107:50 am -
1 stop15h 05m
Tue 2/165:25 pm -
1 stop18h 00m
Deal found 11/3![British Airways logo]()
$743
This Gotogate deal was found by Cheapflights users on 10/31. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:50 am -
1 stop18h 55m
Mon 12/75:25 pm -
1 stop18h 00m
Deal found 10/31![Multiple Airlines logo]()
$837
This American Airlines deal was found by Cheapflights users on 11/3. 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.
Wed 2/102:00 pm -
2 stops17h 53m
Tue 2/166:08 am -
2 stops15h 42m
Deal found 11/3![American Airlines logo]()
$869
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.
Wed 2/107:50 am -
2 stops22h 22m
Mon 2/155:20 pm -
2 stops18h 05m
Deal found 11/4![Aer Lingus logo]()
$886
This British Airways deal was found by Cheapflights users on 11/2. 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.
Wed 12/28:05 pm -
1 stop26h 50m
Tue 12/85:25 pm -
1 stop15h 20m
Deal found 11/2![British Airways logo]()
$799
This American Airlines deal was found by Cheapflights users on 11/2. 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.
Thu 11/262:00 pm -
2 stops30h 51m
Sun 11/292:07 pm -
2 stops18h 38m
Deal found 11/2![American Airlines logo]()
$872
Last-minute flights from Shannon to San FranciscoDiscover last-minute flight deals from Shannon to San Francisco. Data last updated November 4, 2026 and is based on user searches.
Discover last-minute flight deals from Shannon to San Francisco. Data last updated November 4, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 11/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/247:50 am -
2 stops21h 04m
Sat 12/58:55 am -
2 stops18h 35m
Deal found 11/3![Multiple Airlines logo]()
$831
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:50 am -
1 stop15h 05m
Tue 12/85:25 pm -
1 stop15h 20m
Deal found 11/4![British Airways logo]()
$797
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/28:05 pm -
2 stops28h 25m
Tue 12/87:25 pm -
2 stops18h 05m
Deal found 11/4![Multiple Airlines logo]()
$804
This Expedia deal was found by Cheapflights users on 11/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/38:05 pm -
1 stop26h 50m
Wed 12/98:55 am -
2 stops18h 35m
Deal found 11/1![Multiple Airlines logo]()
$819
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:50 am -
1 stop15h 05m
Mon 12/78:35 pm -
1 stop14h 50m
Deal found 11/4![Multiple Airlines logo]()
$840
This Booking.com deal was found by Cheapflights users on 11/3. 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.
Fri 12/48:05 pm -
1 stop26h 50m
Sun 12/65:25 pm -
1 stop18h 00m
Deal found 11/3![British Airways logo]()
$798
This Expedia deal was found by Cheapflights users on 11/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/48:05 pm -
1 stop26h 50m
Sun 12/63:07 pm -
2 stops17h 38m
Deal found 11/3![Multiple Airlines logo]()
$821
One-way flights from Shannon to San FranciscoSearch for one-way flight options from Shannon to San Francisco. Find affordable one-way fares based on user searches. Data last updated November 4, 2026.
Search for one-way flight options from Shannon to San Francisco. Find affordable one-way fares based on user searches. Data last updated November 4, 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.
Sat 12/55:55 pm -
3 stops52h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$417
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 12/96:55 pm -
3 stops53h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$419
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.
Thu 12/36:00 am -
3 stops39h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$503
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
Thu 1/710:25 am -
3 stops46h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Multiple Airlines logo]()
$506
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.
Mon 12/75:45 am -
3 stops46h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$507
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.
Sun 12/68:15 am -
3 stops38h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$510
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 1/66:05 pm -
3 stops58h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Multiple Airlines logo]()
$521
This Cheapflightsfares deal was found by Cheapflights users on 11/2. 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.
Fri 12/45:30 pm -
2 stops30h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Aer Lingus logo]()
$538
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.
Tue 11/178:05 pm -
2 stops27h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Aer Lingus logo]()
$541
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.
Tue 12/82:35 pm -
2 stops37h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$544
Find flight deals from Shannon to San Francisco
Discover tips and strategies to find the most affordable flight options for your journey from Shannon (SNN) to San Francisco (SFO). 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 4, 2026.
Round-trip from | $724 (Expedia) |
|---|---|
One-way from | $417 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Shannon to San Francisco 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 4, 2026.
Use the filters below to find and compare flights from Shannon to San Francisco that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ShannonSan Francisco
SNN Shannon - SFO San Francisco
SNNSFO
Shannon
Fri 12/4
6:00 am-2:45 pm
3 stops40h 45m
San Francisco
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$552
ShannonSan Francisco
SNN Shannon - SFO San Francisco
SNNSFO
Shannon
Sun 12/6
7:50 am-2:25 pm
2 stops38h 35m
San Francisco
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$575
ShannonSan Francisco
SNN Shannon - SFO San Francisco
SNNSFO
Shannon
Thu 12/3
6:00 am-8:52 pm
2 stops22h 52m
San Francisco
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$607
ShannonSan Francisco
SNN Shannon - SFO San Francisco
SNNSFO
Shannon
Thu 12/17
2:00 pm-9:42 am
1 stop27h 42m
San Francisco
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$611
ShannonSan Francisco
SNN Shannon - SFO San Francisco
SNNSFO
Shannon
Wed 2/10
7:50 am-2:55 pm
1 stop15h 05m
San Francisco
Tue 2/16
5:25 pm-7:25 pm
1 stop18h 00m
$743
ShannonSan Francisco
SNN Shannon - SFO San Francisco
SNNSFO
Shannon
Wed 12/2
8:05 pm-2:55 pm
1 stop26h 50m
San Francisco
Tue 12/8
5:25 pm-4:45 pm
1 stop15h 20m
$799
Quickest round-trip
ShannonSan Francisco
SNN Shannon - SFO San Francisco
SNNSFO
Shannon
Wed 12/9
7:50 am-2:55 pm
1 stop15h 05m
San Francisco
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$826
ShannonSan Francisco
SNN Shannon - SFO San Francisco
SNNSFO
Shannon
Fri 1/8
7:50 am-2:55 pm
1 stop15h 05m
San Francisco
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$830
ShannonSan Francisco
SNN Shannon - SFO San Francisco
SNNSFO
Shannon
Thu 12/3
7:50 am-6:45 pm
1 stop18h 55m
San Francisco
Mon 12/7
5:25 pm-7:25 pm
1 stop18h 00m
$837
ShannonSan Francisco
SNN Shannon - SFO San Francisco
SNNSFO
Shannon
Mon 1/4
8:05 pm-9:14 pm
2 stops57h 09m
San Francisco
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$838
Showing 1-10 of 14 resultsSorted by cheapest first
Best time to book a flight from Shannon to San Francisco
Have a flexible travel schedule? Discover the best time to fly to San Francisco from Shannon with our price prediction graph.
SNN-SFO
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.
Related info for your journey
Find useful and relevant information for your journey from Shannon to San Francisco. 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 San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsSouth San Francisco
Santa Clara
Santa Cruz
Walnut Creek
Hayward
Emeryville
Newark
Burlingame
San Bruno
Rancho Cordova
Vallejo
Cupertino
Fairfield
Redwood City
San Carlos
Sunnyvale
Turlock
Davis
Morgan Hill
Roseville
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