What is the difference between the most popular and the most frequent airline at Knock?

Virgin Atlantic operates the most flights from the United States to Knock at 0 per week, while Aer Lingus is the airline most often selected by KAYAK users searching for flights from the United States to Knock. The two are often different because flight volume reflects an airline's schedule, while popularity reflects traveler choice.

Which city has the cheapest flights to Knock?

Based on fares booked in the past 5 days, the cheapest flights to Knock are from New York, starting at $710 round-trip, and from Washington, D.C., starting at $837 round-trip.

How do I know if a flight to Knock is a good deal?

A good deal on a flight to Knock is around $1,076 round-trip. This fare is in the lowest 25% of round-trip prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

What is the cheapest flight to Knock?

Boston to Knock is the cheapest route at $706 round-trip, found in the past 5 days on KAYAK. New York John F Kennedy Intl Airport to Knock is the most popular connection with round-trip deals from $710.

How much is a flight to Knock?

On average, a round-trip flight from the United States to Knock costs $1,289, based on KAYAK data over the past 12 months. Round-trip fares from New York average $787, while Boston runs a bit higher at $1,002.

What is the cheapest day to fly to Knock?

Wednesday is the cheapest day to fly to Knock at $731 round-trip on average over the past 12 months on KAYAK. Sunday is the most expensive at $1,379.

What is the cheapest time of day to fly to Knock?

Night flights to Knock are the cheapest at $787 round-trip on average. Morning flights are the most expensive at $1,373.

What is a good deal for flights to Knock?

Flights under $1,076 are considered a good deal. 25% of KAYAK users found round-trip flights to Knock at or below these prices, with the lowest fares from: •Washington, D.C. $640 •New York $664 •Boston $798.

What are the most popular airlines flying to Knock?

Aer Lingus is the most popular airline flying to Knock on KAYAK, followed by British Airways.

$300 CHEAP FLIGHTS to Knock in 2026/27

Save 26% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$706

Typical prices: $1,076-$1,412

Multiple Airlines

Fri 12/7Thu 12/13

BOS - NOC • 1 stop

Cheapest one-way

$300

Typical prices: $502-$708

Multiple Airlines

Sat 12/8

IAD - NOC • 3 stops

Top airlines

Aer Lingus

Best reviews • 7.3 score

Airline reviews

Top routes

NYC - NOC

Cheapest • 48% average savings

BOS - NOC

Most popular

Insights

When to travel

April

Cheapest • 43% price drop

September

Most popular

Good to know

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Knock!

Flight Deals

Cheap Flights to Knock

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

All Flight Deals

Recent round-trip flight deals to Knock

Mon, Dec 7 - Sun, Dec 13

10:11 pm - 4:50 pmBOS Boston Logan Intl-NOC Knock Intl

13h 39m1 stop London Heathrow

9:05 am - 7:55 pmNOC Knock Intl-BOS Boston Logan Intl

39h 50m2 stops London Stansted Lisbon Humberto Delgado

$706Multiple Airlines

Fri, Dec 11 - Sun, Dec 13

5:00 pm - 4:25 pmJFK New York John F Kennedy Intl-NOC Knock Intl

18h 25m2 stops Dublin London Heathrow

2:35 pm - 8:05 pmNOC Knock Intl-JFK New York John F Kennedy Intl

34h 30m3 stops Manchester Madrid Barajas Lisbon Humberto Delgado

$710Multiple Airlines

Fri, Dec 11 - Sun, Dec 13

7:25 pm - 4:25 pmJFK New York John F Kennedy Intl-NOC Knock Intl

16h 00m2 stops Dublin London Heathrow

2:35 pm - 8:05 pmNOC Knock Intl-JFK New York John F Kennedy Intl

34h 30m3 stops Manchester Madrid Barajas Lisbon Humberto Delgado

$728Multiple Airlines

Fri, Dec 11 - Sun, Dec 13

8:00 am - 8:35 amJFK New York John F Kennedy Intl-NOC Knock Intl

19h 35m1 stop London Heathrow

2:35 pm - 8:05 pmNOC Knock Intl-JFK New York John F Kennedy Intl

34h 30m3 stops Manchester Madrid Barajas Lisbon Humberto Delgado

$756Multiple Airlines

Sun, Dec 6 - Sat, Dec 12

7:40 pm - 1:40 pmIAD Washington, D.C. Dulles Intl-NOC Knock Intl

13h 00m2 stops Reykjavik Keflavik Intl Manchester

4:50 pm - 8:35 pmNOC Knock Intl-IAD Washington, D.C. Dulles Intl

32h 45m3 stops London Stansted Barcelona-El Prat Lisbon Humberto Delgado

$837Multiple Airlines

Sat, Jan 9 - Sat, Jan 16

5:15 pm - 4:35 pmBOS Boston Logan Intl-NOC Knock Intl

18h 20m2 stops Dublin London Heathrow

4:50 pm - 8:00 pmNOC Knock Intl-BOS Boston Logan Intl

32h 10m3 stops London Stansted Lisbon Humberto Delgado Ponta Delgada Nordela

$858Multiple Airlines

Sun, Dec 6 - Sat, Dec 12

11:02 am - 1:40 pmIAD Washington, D.C. Dulles Intl-NOC Knock Intl

21h 38m3 stops Miami Reykjavik Keflavik Intl Manchester

4:50 pm - 8:35 pmNOC Knock Intl-IAD Washington, D.C. Dulles Intl

32h 45m3 stops London Stansted Barcelona-El Prat Lisbon Humberto Delgado

$861Multiple Airlines

Sat, Jan 9 - Sat, Jan 16

7:50 pm - 4:35 pmBOS Boston Logan Intl-NOC Knock Intl

15h 45m3 stops Reykjavik Keflavik Intl Dublin London Stansted

4:50 pm - 8:00 pmNOC Knock Intl-BOS Boston Logan Intl

32h 10m3 stops London Stansted Lisbon Humberto Delgado Ponta Delgada Nordela

$875Multiple Airlines

Thu, Dec 10 - Thu, Dec 17

5:00 pm - 12:30 pmJFK New York John F Kennedy Intl-NOC Knock Intl

14h 30m2 stops Dublin London Heathrow

6:40 pm - 8:15 amNOC Knock Intl-JFK New York John F Kennedy Intl

42h 35m3 stops London Luton Sevilla Casablanca Mohamed V

$899Multiple Airlines

Mon, Dec 7 - Sun, Dec 13

3:30 pm - 12:30 pmBOS Boston Logan Intl-NOC Knock Intl

16h 00m2 stops Montreal Pierre Elliott Trudeau Intl London Heathrow

1:05 pm - 10:17 amNOC Knock Intl-BOS Boston Logan Intl

26h 12m2 stops London Heathrow Toronto Pearson Intl

$909Multiple Airlines

All round-trip flight deals to Knock

Mon, Dec 7 - Sun, Dec 13

10:11 pm - 4:50 pmBOS Boston Logan Intl-NOC Knock Intl

13h 39m1 stop London Heathrow

9:05 am - 7:55 pmNOC Knock Intl-BOS Boston Logan Intl

39h 50m2 stops London Stansted Lisbon Humberto Delgado

$706Multiple Airlines

Fri, Dec 11 - Sun, Dec 13

5:00 pm - 4:25 pmJFK New York John F Kennedy Intl-NOC Knock Intl

18h 25m2 stops Dublin London Heathrow

2:35 pm - 8:05 pmNOC Knock Intl-JFK New York John F Kennedy Intl

34h 30m3 stops Manchester Madrid Barajas Lisbon Humberto Delgado

$710Multiple Airlines

Fri, Dec 11 - Sun, Dec 13

7:25 pm - 4:25 pmJFK New York John F Kennedy Intl-NOC Knock Intl

16h 00m2 stops Dublin London Heathrow

2:35 pm - 8:05 pmNOC Knock Intl-JFK New York John F Kennedy Intl

34h 30m3 stops Manchester Madrid Barajas Lisbon Humberto Delgado

$728Multiple Airlines

Fri, Dec 11 - Sun, Dec 13

8:00 am - 8:35 amJFK New York John F Kennedy Intl-NOC Knock Intl

19h 35m1 stop London Heathrow

2:35 pm - 8:05 pmNOC Knock Intl-JFK New York John F Kennedy Intl

34h 30m3 stops Manchester Madrid Barajas Lisbon Humberto Delgado

$756Multiple Airlines

Sun, Dec 6 - Sat, Dec 12

7:40 pm - 1:40 pmIAD Washington, D.C. Dulles Intl-NOC Knock Intl

13h 00m2 stops Reykjavik Keflavik Intl Manchester

4:50 pm - 8:35 pmNOC Knock Intl-IAD Washington, D.C. Dulles Intl

32h 45m3 stops London Stansted Barcelona-El Prat Lisbon Humberto Delgado

$837Multiple Airlines

Sat, Jan 9 - Sat, Jan 16

5:15 pm - 4:35 pmBOS Boston Logan Intl-NOC Knock Intl

18h 20m2 stops Dublin London Heathrow

4:50 pm - 8:00 pmNOC Knock Intl-BOS Boston Logan Intl

32h 10m3 stops London Stansted Lisbon Humberto Delgado Ponta Delgada Nordela

$858Multiple Airlines

Sun, Dec 6 - Sat, Dec 12

11:02 am - 1:40 pmIAD Washington, D.C. Dulles Intl-NOC Knock Intl

21h 38m3 stops Miami Reykjavik Keflavik Intl Manchester

4:50 pm - 8:35 pmNOC Knock Intl-IAD Washington, D.C. Dulles Intl

32h 45m3 stops London Stansted Barcelona-El Prat Lisbon Humberto Delgado

$861Multiple Airlines

Sat, Jan 9 - Sat, Jan 16

7:50 pm - 4:35 pmBOS Boston Logan Intl-NOC Knock Intl

15h 45m3 stops Reykjavik Keflavik Intl Dublin London Stansted

4:50 pm - 8:00 pmNOC Knock Intl-BOS Boston Logan Intl

32h 10m3 stops London Stansted Lisbon Humberto Delgado Ponta Delgada Nordela

$875Multiple Airlines

Thu, Dec 10 - Thu, Dec 17

5:00 pm - 12:30 pmJFK New York John F Kennedy Intl-NOC Knock Intl

14h 30m2 stops Dublin London Heathrow

6:40 pm - 8:15 amNOC Knock Intl-JFK New York John F Kennedy Intl

42h 35m3 stops London Luton Sevilla Casablanca Mohamed V

$899Multiple Airlines

Mon, Dec 7 - Sun, Dec 13

3:30 pm - 12:30 pmBOS Boston Logan Intl-NOC Knock Intl

16h 00m2 stops Montreal Pierre Elliott Trudeau Intl London Heathrow

1:05 pm - 10:17 amNOC Knock Intl-BOS Boston Logan Intl

26h 12m2 stops London Heathrow Toronto Pearson Intl

$909Multiple Airlines

Booking Insights

Price, demand and travel trends for flights to Knock

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

What is the cheapest flight to Knock?: Boston to Knock is the cheapest route at $706 round-trip, found in the past 5 days on KAYAK. New York John F Kennedy Intl Airport to Knock is the most popular connection with round-trip deals from $710.
How much is a flight to Knock? Average and cheapest price for all round-trip flights to Knock from each origin found by users searching on KAYAK in the last 12 months.: On average, a round-trip flight from the United States to Knock costs $1,289, based on KAYAK data over the past 12 months. Round-trip fares from New York average $787, while Boston runs a bit higher at $1,002.
What is the cheapest day to fly to Knock?: Wednesday is the cheapest day to fly to Knock at $731 round-trip on average over the past 12 months on KAYAK. Sunday is the most expensive at $1,379.
What is the cheapest time of day to fly to Knock? Average price for all round-trip flights depending on time of departure, seen by users on KAYAK in the last 12 months.: Night flights to Knock are the cheapest at $787 round-trip on average. Morning flights are the most expensive at $1,373.
What is a good deal for flights to Knock?: Flights under $1,076 are considered a good deal. 25% of KAYAK users found round-trip flights to Knock at or below these prices, with the lowest fares from:
•Washington, D.C. $640
•New York $664
•Boston $798.

Find deals

Low season	January
High season	September
Cheapest flight	$300

Beat the crowds with an average 83% drop in travelers.

The most popular month to fly with an average 138% increase in travelers.

One-way flight from Washington, D.C. Dulles Intl Airport to Knock

When to book flights to Knock

Are your dates flexible? Find out the best times to travel to Knock based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. The information is for flights to Knock based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

How do I know if a flight to Knock is a good deal?
A good deal on a flight to Knock is around $1,076 round-trip. This fare is in the lowest 25% of round-trip prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.
Which city has the cheapest flights to Knock?
Based on fares booked in the past 5 days, the cheapest flights to Knock are from New York, starting at $710 round-trip, and from Washington, D.C., starting at $837 round-trip.
What is the difference between the most popular and the most frequent airline at Knock?
Virgin Atlantic operates the most flights from the United States to Knock at 0 per week, while Aer Lingus is the airline most often selected by KAYAK users searching for flights from the United States to Knock. The two are often different because flight volume reflects an airline's schedule, while popularity reflects traveler choice.

For flights to Knock, a good round-trip fare is around $1,076. If you find a fare below that, you're getting a strong deal.
If your travel dates are flexible, consider flying to Knock in April. Round-trip fares historically average $734, making April the cheapest month to travel based on KAYAK data from the last 12 months.
Before you book:

• Check the route's typical price range so you can spot a deal.
• Confirm baggage fees and seat-selection costs on budget carriers.
• Verify whether you need any travel documents beyond ID.
• Pick a departure airport, since your nearest may not be the cheapest origin.
Shift your departure to evening to save up to $586 per round-trip. Evening flights to Knock average $787 compared to $1,373 for morning flights.

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$300 Find Cheap Flights to Knock - Compare and Save

Everything you should know

Cheap Flights to Knock

Recent round-trip flight deals to Knock

Recent one-way flight deals to Knock

Recent last minute flight deals to Knock

All round-trip flight deals to Knock

Price, demand and travel trends for flights to Knock

What is the cheapest flight to Knock?

How much is a flight to Knock?

What is the cheapest day to fly to Knock?

What is the cheapest time of day to fly to Knock?

What is a good deal for flights to Knock?

What are the most popular airlines flying to Knock?

Key details for flights to Knock

Low season

High season

Cheapest flight

When to book flights to Knock

Your questions about flights to Knock, answered

Your guide to booking Knock flights

Traveling to a place near Knock?

More options for your flight to Knock

Complete your trip to Knock with a hotel stay or car rental

Information on the airport you'll fly into in Knock

Cabin class types available on flights to Knock

Flights from local origins to Knock

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