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Cheap flights from San Francisco to Knock from $1,015

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Knock departing on 9/21. 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
0 bags

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Find the cheapest flights from San Francisco to Knock

Cheap round-trip flights

Logo
7:40 pm - 12:35 pmSFO-NOC
32h 55m3 stops
Logo
1:05 pm - 4:30 pmNOC-SFO
35h 25m3 stops
$1,015
Find Deal
Sun, Sep 21 - Thu, Sep 25
Logo
11:40 am - 12:35 pmSFO-NOC
16h 55m2 stops
Logo
1:05 pm - 10:33 amNOC-SFO
29h 28m2 stops
$1,114
Find Deal
Sun, Sep 21 - Thu, Sep 25
Logo
9:20 pm - 12:35 pmSFO-NOC
31h 15m1 stop
Logo
1:05 pm - 7:30 pmNOC-SFO
14h 25m1 stop
$1,180
Find Deal
Sun, Sep 21 - Thu, Sep 25
British Airways Logo
5:45 am - 12:35 pmSFO-NOC
22h 50m2 stops
British Airways Logo
1:05 pm - 5:25 pmNOC-SFO
36h 20m1 stop
$1,216British Airways
Find Deal
Sun, Sep 21 - Thu, Sep 25

British Airways flights from San Francisco to Knock

Our best British Airways deals on San Francisco to Knock flight tickets
British Airways
Sep 21
SFO5:45 amSan Francisco
22h 50m
2 stops
NOC12:35 pmKnock Intl
Sep 25
NOC1:05 pmKnock Intl
36h 20m
1 stop
SFO5:25 pmSan Francisco
$1,216
Find similar
British Airways
Aug 23
SFO4:25 pmSan Francisco
36h 10m
2 stops
NOC12:35 pmKnock Intl
Aug 29
NOC1:05 pmKnock Intl
39h 27m
2 stops
SFO8:32 pmSan Francisco
$1,754
Find similar
British Airways
Aug 23
SFO4:25 pmSan Francisco
36h 10m
2 stops
NOC12:35 pmKnock Intl
Aug 29
NOC1:05 pmKnock Intl
32h 45m
1 stop
SFO1:50 pmSan Francisco
$1,794
Find similar

Aer Lingus flights from San Francisco to Knock

Our best Aer Lingus deals on San Francisco to Knock flight tickets
Aer Lingus
Aug 24
SFO7:20 pmSan Francisco
33h 15m
1 stop
NOC12:35 pmKnock Intl
Aug 29
NOC1:05 pmKnock Intl
32h 45m
1 stop
SFO1:50 pmSan Francisco
$4,058
Find similar
Aer Lingus
Aug 23
SFO7:20 pmSan Francisco
33h 15m
1 stop
NOC12:35 pmKnock Intl
Aug 30
NOC1:05 pmKnock Intl
32h 45m
1 stop
SFO1:50 pmSan Francisco
$4,288
Find similar
Aer Lingus
Aug 24
SFO7:20 pmSan Francisco
33h 15m
1 stop
NOC12:35 pmKnock Intl
Aug 30
NOC1:05 pmKnock Intl
32h 45m
1 stop
SFO1:50 pmSan Francisco
$4,952
Find similar

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated August 21, 2025.
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

San FranciscoKnock

SFO - NOC

SFONOC

San Francisco

Sun 9/21

7:40 pm-12:35 pm

3 stops32h 55m

Knock Intl

Thu 9/25

1:05 pm-4:30 pm

3 stops35h 25m

$1,015

San FranciscoKnock

SFO - NOC

SFONOC

San Francisco

Sun 9/21

11:40 am-12:35 pm

2 stops16h 55m

Knock Intl

Thu 9/25

1:05 pm-10:33 am

2 stops29h 28m

$1,114

San FranciscoKnock

SFO - NOC

SFONOC

San Francisco

Sun 9/21

9:20 pm-12:35 pm

1 stop31h 15m

Knock Intl

Thu 9/25

1:05 pm-7:30 pm

1 stop14h 25m

$1,180

San FranciscoKnock

SFO - NOC

SFONOC

San Francisco

Sun 9/21

5:45 am-12:35 pm

2 stops22h 50m

Knock Intl

Thu 9/25

1:05 pm-5:25 pm

1 stop36h 20m

$1,216

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Knock from

How to get the cheapest flight ticket from San Francisco to Knock

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What airlines fly to Knock?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to Knock from San Francisco according to our data. United Airlines is the first choice among our users, with 64% of people opting to fly with this airline when traveling to Knock. Keep in mind that there are 6 different airlines that fly to Knock on a routine basis, so you have a few additional options to choose from.

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 round-trip 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

Direct flights

None
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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  • How far is San Francisco to Knock Intl by plane?

    The distance between San Francisco and Knock Intl is about 4974.1 mi. By plane, this route typically takes 16h 55m.

  • 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 are refreshed on a daily basis.

  • 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 required travel and health documents for your Knock Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Knock Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Knock?

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

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Francisco to Knock. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Knock from San Francisco which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for San Francisco to Knock flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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.

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