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Cheap flights from Washington, D.C. Dulles Intl Airport to Knock from €857

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Knock departing on 1/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Knock

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
15:45 - 12:35
IAD
-
NOC
15h 50m
2 stops
Multiple Airlines Logo
13:05 - 11:21
NOC
-
IAD
27h 16m
2 stops
€857Multiple Airlines
Tue, 1 Sep - Fri, 11 Sep
Aer Lingus Logo
17:15 - 12:35
IAD
-
NOC
14h 20m
2 stops
Aer Lingus Logo
13:05 - 20:20
NOC
-
IAD
12h 15m
1 stop
€906Aer Lingus
Tue, 1 Sep - Fri, 11 Sep
Aer Lingus Logo
17:45 - 12:35
IAD
-
NOC
13h 50m
1 stop
Aer Lingus Logo
13:05 - 20:20
NOC
-
IAD
12h 15m
1 stop
€921Aer Lingus
Tue, 1 Sep - Fri, 11 Sep
Multiple Airlines Logo
15:45 - 12:35
IAD
-
NOC
15h 50m
2 stops
Multiple Airlines Logo
13:05 - 15:24
NOC
-
IAD
31h 19m
2 stops
€925Multiple Airlines
Wed, 8 Jul - Wed, 15 Jul
Multiple Airlines Logo
08:18 - 12:35
IAD
-
NOC
23h 17m
2 stops
Multiple Airlines Logo
13:05 - 15:24
NOC
-
IAD
31h 19m
2 stops
€945Multiple Airlines
Thu, 9 Jul - Thu, 16 Jul
Multiple Airlines Logo
18:20 - 12:25
IAD
-
NOC
13h 05m
1 stop
Multiple Airlines Logo
13:00 - 15:35
NOC
-
IAD
31h 35m
1 stop
€964Multiple Airlines
Sun, 8 Nov - Sat, 14 Nov
Aer Lingus Logo
21:00 - 12:25
IAD
-
NOC
34h 25m
2 stops
Aer Lingus Logo
13:00 - 15:35
NOC
-
IAD
31h 35m
2 stops
€967Aer Lingus
Sun, 8 Nov - Sat, 14 Nov
Aer Lingus Logo
17:45 - 12:35
IAD
-
NOC
13h 50m
1 stop
Aer Lingus Logo
13:05 - 15:50
NOC
-
IAD
31h 45m
1 stop
€975Aer Lingus
Wed, 8 Jul - Wed, 15 Jul
British Airways Logo
18:20 - 12:25
IAD
-
NOC
13h 05m
1 stop
British Airways Logo
13:00 - 19:21
NOC
-
IAD
35h 21m
2 stops
€987British Airways
Sun, 8 Nov - Sat, 14 Nov
Aer Lingus Logo
17:45 - 12:35
IAD
-
NOC
13h 50m
1 stop
Aer Lingus Logo
13:05 - 15:45
NOC
-
IAD
31h 40m
2 stops
€999Aer Lingus
Wed, 8 Jul - Wed, 15 Jul

Aer Lingus flights from Washington, D.C. Dulles Intl Airport to Knock

Our best Aer Lingus deals on Washington, D.C. Dulles Intl Airport to Knock flight tickets
Aer Lingus
1 Sept
IAD17:15Washington, D.C. Dulles Intl
14h 20m
2 stops
NOC12:35Knock Intl
11 Sept
NOC13:05Knock Intl
12h 15m
1 stop
IAD20:20Washington, D.C. Dulles Intl
€906
Aer Lingus
1 Sept
IAD17:45Washington, D.C. Dulles Intl
13h 50m
1 stop
NOC12:35Knock Intl
11 Sept
NOC13:05Knock Intl
12h 15m
1 stop
IAD20:20Washington, D.C. Dulles Intl
€921
Aer Lingus
8 Nov
IAD21:00Washington, D.C. Dulles Intl
34h 25m
2 stops
NOC12:25Knock Intl
14 Nov
NOC13:00Knock Intl
31h 35m
2 stops
IAD15:35Washington, D.C. Dulles Intl
€967

British Airways flights from Washington, D.C. Dulles Intl Airport to Knock

Our best British Airways deals on Washington, D.C. Dulles Intl Airport to Knock flight tickets
British Airways
8 Nov
IAD18:20Washington, D.C. Dulles Intl
13h 05m
1 stop
NOC12:25Knock Intl
14 Nov
NOC13:00Knock Intl
35h 21m
2 stops
IAD19:21Washington, D.C. Dulles Intl
€987
British Airways
6 Jul
IAD19:15Washington, D.C. Dulles Intl
12h 20m
1 stop
NOC12:35Knock Intl
14 Jul
NOC13:05Knock Intl
12h 15m
1 stop
IAD20:20Washington, D.C. Dulles Intl
€1,307
British Airways
6 Jul
IAD19:15Washington, D.C. Dulles Intl
12h 20m
1 stop
NOC12:35Knock Intl
14 Jul
NOC13:05Knock Intl
40h 05m
2 stops
IAD00:10Washington, D.C. Dulles Intl
€1,316

momondo Fare Finder

 
Customise your flight search to find flights from Washington, D.C. Dulles Intl Airport 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 26 May 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Knock that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Tue 1/9

15:45-12:35

2 stops15h 50m

Knock Intl

Fri 11/9

13:05-11:21

2 stops27h 16m

€857

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Tue 1/9

17:15-12:35

2 stops14h 20m

Knock Intl

Fri 11/9

13:05-20:20

1 stop12h 15m

€906
Fastest return journey

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Tue 1/9

17:45-12:35

1 stop13h 50m

Knock Intl

Fri 11/9

13:05-20:20

1 stop12h 15m

€921

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Wed 8/7

15:45-12:35

2 stops15h 50m

Knock Intl

Wed 15/7

13:05-15:24

2 stops31h 19m

€925

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Thu 9/7

08:18-12:35

2 stops23h 17m

Knock Intl

Thu 16/7

13:05-15:24

2 stops31h 19m

€945

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Sun 8/11

18:20-12:25

1 stop13h 05m

Knock Intl

Sat 14/11

13:00-15:35

1 stop31h 35m

€964

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Sun 8/11

21:00-12:25

2 stops34h 25m

Knock Intl

Sat 14/11

13:00-15:35

2 stops31h 35m

€967

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Wed 8/7

17:45-12:35

1 stop13h 50m

Knock Intl

Wed 15/7

13:05-15:50

1 stop31h 45m

€975

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Sun 8/11

18:20-12:25

1 stop13h 05m

Knock Intl

Sat 14/11

13:00-19:21

2 stops35h 21m

€987

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Wed 8/7

17:45-12:35

1 stop13h 50m

Knock Intl

Wed 15/7

13:05-15:45

2 stops31h 40m

€999

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

When to book flights from Washington, D.C. Dulles Intl Airport to Knock

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Knock according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Washington, D.C. Dulles Intl Airport to Knock (IAD to NOC) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Knock

Fastest flight time

13h 05m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Knock takes 13h 05m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Knock. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Knock.
Search flight deals

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Knock

  • How far is Washington, D.C. Dulles Intl to Knock Intl by plane?

    Washington, D.C. Dulles Intl and Knock Intl are 5279.8 km apart from one another. In terms of flight time, this usually takes a little over 13h 05m.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Knock Intl Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Knock Intl Airport were last updated today.

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport 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 Washington, D.C. Dulles Intl Airport to Knock Intl Airport.

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

    The travel and health documents required for your trip to Knock Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Knock Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Knock

  • How do I get Price Alerts for flights from Washington, D.C. Dulles Intl Airport to Knock?

    Search flight deals from Washington, D.C. Dulles Intl Airport to Knock. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Washington, D.C. Dulles Intl Airport 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 Washington, D.C. to Knock?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to Knock . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Washington, D.C. to Knock with flexible booking policies on momondo?

All flight searches from Washington, D.C. to Knock on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Knock?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to Knock.

I’m not ready to book a flight from Washington, D.C. to Knock right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Washington, D.C. to Knock flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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