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Cheap flights from San Francisco to Knock from €1,059

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Knock departing on 25/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
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Find the cheapest flights from San Francisco to Knock

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
08:49 - 12:25
SFO
-
NOC
20h 36m
2 stops
Multiple Airlines Logo
13:00 - 10:27
NOC
-
SFO
29h 27m
2 stops
€1,059Multiple Airlines
Sun, 25 Oct - Sat, 7 Nov
Multiple Airlines Logo
19:30 - 12:35
SFO
-
NOC
57h 05m
2 stops
Multiple Airlines Logo
13:05 - 09:09
NOC
-
SFO
28h 04m
2 stops
€1,094Multiple Airlines
Mon, 27 Jul - Wed, 5 Aug
Multiple Airlines Logo
08:45 - 12:35
SFO
-
NOC
19h 50m
2 stops
Multiple Airlines Logo
13:05 - 00:11
NOC
-
SFO
19h 06m
2 stops
€1,103Multiple Airlines
Thu, 6 Aug - Thu, 13 Aug
Multiple Airlines Logo
13:00 - 12:35
SFO
-
NOC
15h 35m
1 stop
Multiple Airlines Logo
13:05 - 01:15
NOC
-
SFO
20h 10m
2 stops
€1,106Multiple Airlines
Mon, 27 Jul - Wed, 5 Aug
Multiple Airlines Logo
13:00 - 12:35
SFO
-
NOC
15h 35m
1 stop
Multiple Airlines Logo
13:05 - 19:10
NOC
-
SFO
14h 05m
1 stop
€1,149Multiple Airlines
Mon, 27 Jul - Wed, 5 Aug
Multiple Airlines Logo
19:30 - 12:35
SFO
-
NOC
33h 05m
1 stop
Multiple Airlines Logo
13:05 - 15:50
NOC
-
SFO
34h 45m
2 stops
€1,373Multiple Airlines
Thu, 6 Aug - Thu, 13 Aug
Aer Lingus Logo
19:30 - 12:35
SFO
-
NOC
33h 05m
1 stop
Aer Lingus Logo
13:05 - 13:50
NOC
-
SFO
32h 45m
1 stop
€1,465Aer Lingus
Thu, 6 Aug - Thu, 13 Aug
Multiple Airlines Logo
11:40 - 12:35
SFO
-
NOC
16h 55m
2 stops
Multiple Airlines Logo
13:05 - 18:00
NOC
-
SFO
36h 55m
3 stops
€2,060Multiple Airlines
Thu, 6 Aug - Thu, 13 Aug

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momondo Fare Finder

 
Customise your flight search to find flights from San Francisco to Knock 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, momondo users made 13,528 searches. Data last updated 23 June 2026.
Use the filters below to find and compare flights from San Francisco to Knock that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San FranciscoKnock

SFO - NOC

SFONOC

San Francisco

Sun 25/10

08:49-12:25

2 stops20h 36m

Knock Intl

Sat 7/11

13:00-10:27

2 stops29h 27m

€1,059

San FranciscoKnock

SFO - NOC

SFONOC

San Francisco

Mon 27/7

19:30-12:35

2 stops57h 05m

Knock Intl

Wed 5/8

13:05-09:09

2 stops28h 04m

€1,094

San FranciscoKnock

SFO - NOC

SFONOC

San Francisco

Thu 6/8

08:45-12:35

2 stops19h 50m

Knock Intl

Thu 13/8

13:05-00:11

2 stops19h 06m

€1,103

San FranciscoKnock

SFO - NOC

SFONOC

San Francisco

Mon 27/7

13:00-12:35

1 stop15h 35m

Knock Intl

Wed 5/8

13:05-01:15

2 stops20h 10m

€1,106
Fastest return journey

San FranciscoKnock

SFO - NOC

SFONOC

San Francisco

Mon 27/7

13:00-12:35

1 stop15h 35m

Knock Intl

Wed 5/8

13:05-19:10

1 stop14h 05m

€1,149

San FranciscoKnock

SFO - NOC

SFONOC

San Francisco

Thu 6/8

19:30-12:35

1 stop33h 05m

Knock Intl

Thu 13/8

13:05-15:50

2 stops34h 45m

€1,373

San FranciscoKnock

SFO - NOC

SFONOC

San Francisco

Thu 6/8

19:30-12:35

1 stop33h 05m

Knock Intl

Thu 13/8

13:05-13:50

1 stop32h 45m

€1,465

San FranciscoKnock

SFO - NOC

SFONOC

San Francisco

Thu 6/8

11:40-12:35

2 stops16h 55m

Knock Intl

Thu 13/8

13:05-18:00

3 stops36h 55m

€2,060

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

When to book flights from San Francisco to Knock

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to Knock according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap San Francisco to Knock (SFO to NOC) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Knock

Fastest flight time

19h 50m

Direct flights

None
The fastest flight from San Francisco to Knock takes 19h 50m
There are no direct flights from San Francisco to Knock. There are no popular flight routes from San Francisco to Knock.
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Frequently asked questions about flying from San Francisco to Knock

  • How far is San Francisco to Knock Intl by plane?

    Knock Intl is 8005.3 km away from San Francisco. In terms of flight time, this usually takes a little over 19h 50m.

  • When did momondo last update prices for flights from San Francisco Airport to Knock Intl Airport?

    Prices for flights from San Francisco Airport to Knock Intl Airport were last updated today.

  • How old do you have to be to fly from San Francisco Airport to Knock Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Francisco Airport to Knock Intl Airport.

  • What documentation or ID do you need to fly to Knock Intl Airport?

    The necessary travel and health documents for your Knock Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from San Francisco to Knock

  • How do I get Price Alerts for flights from San Francisco to Knock?

    Confirm your travel details to search for the latest offers for flights from San Francisco to Knock. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from San Francisco to Knock with momondo?

    By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Travelling to a place near Knock?

Book flights to Knock if you plan to visit one of these locations
Sligo
Westport
Carrick-on-Shannon
Belmullet

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Knock?

Finding the right flight to Knock from San Francisco is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Knock quick and easy, saving you time and money.

Can I find flights from San Francisco to Knock with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Knock from San Francisco with this policy.

How can momondo help me find flights from San Francisco to Knock?

Once all potential San Francisco to Knock flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from San Francisco to Knock right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Knock, momondo offers a useful price alert feature which will track prices for flights to Knock from San Francisco and alert you when they change.

An easier way to manage your Knock trip

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