Latest deals
Insights
FAQs
Price Alerts

Cheap flights from the United States to Knock from €345

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Knock departing on 5/3. 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
Voted the Winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from the United States to Knock

Recent return flight deals from the United States to Knock

Enter your travel dates to find the best prices.
Multiple Airlines Logo
15:30 - 12:25
EWR
-
NOC
15h 55m
2 stops
Multiple Airlines Logo
13:00 - 22:30
NOC
-
EWR
13h 30m
1 stop
€517Multiple Airlines
Thu, 5 Mar - Mon, 9 Mar
Multiple Airlines Logo
06:00 - 12:35
EWR
-
NOC
25h 35m
2 stops
Multiple Airlines Logo
13:05 - 19:52
NOC
-
EWR
35h 47m
2 stops
€518Multiple Airlines
Fri, 1 May - Fri, 8 May
Multiple Airlines Logo
09:00 - 12:35
JFK
-
NOC
22h 35m
2 stops
Multiple Airlines Logo
13:05 - 21:47
NOC
-
JFK
37h 42m
2 stops
€518Multiple Airlines
Fri, 1 May - Fri, 8 May
Multiple Airlines Logo
15:30 - 12:25
EWR
-
NOC
15h 55m
2 stops
Multiple Airlines Logo
13:00 - 11:13
NOC
-
EWR
26h 13m
2 stops
€522Multiple Airlines
Thu, 5 Mar - Mon, 9 Mar
Aer Lingus Logo
21:05 - 12:35
JFK
-
NOC
34h 30m
2 stops
Aer Lingus Logo
13:05 - 16:55
NOC
-
JFK
32h 50m
2 stops
€598Aer Lingus
Wed, 22 Jul - Wed, 29 Jul
British Airways Logo
14:00 - 12:25
JFK
-
NOC
17h 25m
2 stops
British Airways Logo
13:00 - 14:55
NOC
-
JFK
29h 55m
2 stops
€605British Airways
Thu, 5 Mar - Mon, 9 Mar
Aer Lingus Logo
07:50 - 12:35
JFK
-
NOC
23h 45m
1 stop
Aer Lingus Logo
13:05 - 16:55
NOC
-
JFK
32h 50m
2 stops
€619Aer Lingus
Fri, 1 May - Fri, 8 May
Aer Lingus Logo
23:55 - 12:35
JFK
-
NOC
31h 40m
2 stops
Aer Lingus Logo
13:05 - 16:55
NOC
-
JFK
32h 50m
2 stops
€620Aer Lingus
Wed, 15 Jul - Thu, 30 Jul
British Airways Logo
21:25 - 12:35
EWR
-
NOC
10h 10m
1 stop
British Airways Logo
13:05 - 19:25
NOC
-
EWR
11h 20m
1 stop
€621British Airways
Fri, 1 May - Fri, 8 May
British Airways Logo
13:54 - 12:35
ORD
-
NOC
16h 41m
2 stops
British Airways Logo
13:05 - 21:38
NOC
-
ORD
38h 33m
2 stops
€621British Airways
Mon, 13 Apr - Mon, 20 Apr

momondo Fare Finder

 
Customise your flight search to find flights from United States 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 20 February 2026.
Use the filters below to find and compare flights from the United States to Knock that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

NewarkKnock

EWR - NOC

EWRNOC

Newark

Thu 5/3

15:30-12:25

2 stops15h 55m

Knock Intl

Mon 9/3

13:00-22:30

1 stop13h 30m

€517

NewarkKnock

EWR - NOC

EWRNOC

Newark

Fri 1/5

06:00-12:35

2 stops25h 35m

Knock Intl

Fri 8/5

13:05-19:52

2 stops35h 47m

€518

New YorkKnock

JFK - NOC

JFKNOC

New York John F Kennedy Intl

Fri 1/5

09:00-12:35

2 stops22h 35m

Knock Intl

Fri 8/5

13:05-21:47

2 stops37h 42m

€518

NewarkKnock

EWR - NOC

EWRNOC

Newark

Thu 5/3

15:30-12:25

2 stops15h 55m

Knock Intl

Mon 9/3

13:00-11:13

2 stops26h 13m

€522

New YorkKnock

JFK - NOC

JFKNOC

New York John F Kennedy Intl

Wed 22/7

21:05-12:35

2 stops34h 30m

Knock Intl

Wed 29/7

13:05-16:55

2 stops32h 50m

€598

New YorkKnock

JFK - NOC

JFKNOC

New York John F Kennedy Intl

Thu 5/3

14:00-12:25

2 stops17h 25m

Knock Intl

Mon 9/3

13:00-14:55

2 stops29h 55m

€605

New YorkKnock

JFK - NOC

JFKNOC

New York John F Kennedy Intl

Fri 1/5

07:50-12:35

1 stop23h 45m

Knock Intl

Fri 8/5

13:05-16:55

2 stops32h 50m

€619

New YorkKnock

JFK - NOC

JFKNOC

New York John F Kennedy Intl

Wed 15/7

23:55-12:35

2 stops31h 40m

Knock Intl

Thu 30/7

13:05-16:55

2 stops32h 50m

€620

NewarkKnock

EWR - NOC

EWRNOC

Newark

Fri 1/5

21:25-12:35

1 stop10h 10m

Knock Intl

Fri 8/5

13:05-19:25

1 stop11h 20m

€621

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Mon 13/4

13:54-12:35

2 stops16h 41m

Knock Intl

Mon 20/4

13:05-21:38

2 stops38h 33m

€621

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

See travel insights to Knock from

How to get the cheapest flight ticket from United States 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 is the cheapest airline that flies from United States to Knock Intl?

British Airways is the most popular carrier operating from United States to Knock Intl

  • When did momondo last update prices for flights from United States to Knock Intl Airport?

    Prices for flights from United States to Knock Intl Airport were last updated today.

  • How old do you have to be to fly from United States to Knock Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from United States to Knock Intl Airport.

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

    The travel and health documents you'll need for your trip to Knock Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Knock Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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 United States to Knock?

Finding the right flight to Knock from United States 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 United States to Knock with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for United States to Knock flights to just show those with flexible booking policies.

How can momondo help me find flights from United States to Knock?

momondo provides multiple filters to help you find the best flight to Knock from United States. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from United States 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 United States and alert you when they change.

An easier way to manage your Knock trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 22/3
Sun 29/3
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ireland