What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Northern Ireland?

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Northern Ireland (average of £67). Flying from Washington, D.C. Dulles Intl Airport to Northern Ireland in August is currently the most expensive (average of £90). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Northern Ireland?

October can be a great time to fly to Northern Ireland from Washington, D.C. Dulles Intl Airport with a flight ticket averaging about £596. Cheapflights users have found deals in the month of October for as cheap as £456. The most expensive prices can be found in the month of June.

What is the cheapest time of day to fly from IAD to NIR?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Dulles Intl Airport to Northern Ireland as you normally would.

Can I find deals for flights from Dulles Intl to Northern Ireland that include hotel bookings?

Yes. In addition to deals on Dulles Intl to Northern Ireland flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Dulles Intl to Northern Ireland?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Northern Ireland.

Can I find deals for business class flights from Dulles Intl to Northern Ireland?

Yes. Cheapflights offers flight deals from Dulles Intl to Northern Ireland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£315+ Flights from Washington, D.C. Dulles Intl Airport to Northern Ireland

Cheap flight deals from Dulles Intl to Northern Ireland

Find flight deals from Dulles Intl to Northern Ireland

Cheapest flights from Dulles Intl to Northern Ireland
Explore the most affordable flight options available from Dulles Intl to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 November 2024.

Fri 22/1121:55IAD - BHD

1 stop14h 20mAmerican Airlines

Mon 25/1106:35BHD - IAD

1 stop14h 00mAmerican Airlines

Deal found 20/11£587

Sun 29/1217:10IAD - BHD

2 stops16h 25mAer Lingus

Wed 8/119:25BHD - IAD

2 stops25h 15mAer Lingus

Deal found 20/11£662

Sun 29/1218:00IAD - BHD

1 stop11h 20mBritish Airways

Wed 8/119:25BHD - IAD

2 stops25h 15mBritish Airways

Deal found 20/11£684

Sun 29/1214:35IAD - BFS

2 stops17h 15mMultiple Airlines

Wed 8/120:55BFS - IAD

3 stops26h 30mMultiple Airlines

Deal found 20/11£753

Sun 29/1217:35IAD - BHD

1 stop22h 25mKLM

Wed 8/117:20BHD - IAD

1 stop27h 25mKLM

Deal found 20/11£798

Sun 29/1210:35IAD - BHD

3 stops26h 50mMultiple Airlines

Wed 8/107:25BHD - IAD

2 stops16h 00mMultiple Airlines

Deal found 20/11£931

Best flights from Dulles Intl to Northern Ireland
Discover carefully curated flight deals from Dulles Intl to Northern Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 November 2024.

Thu 9/121:55IAD - BHD

1 stop11h 05mAmerican Airlines

Mon 13/111:30BHD - IAD

1 stop13h 15mAmerican Airlines

Deal found 20/11£497

Fri 14/218:00IAD - BHD

1 stop11h 30mBritish Airways

Sat 22/209:10BHD - IAD

1 stop11h 25mBritish Airways

Deal found 19/11£499

Fri 24/117:16IAD - BHD

2 stops18h 34mDelta

Sat 8/206:30BHD - IAD

2 stops17h 25mDelta

Deal found 20/11£537

Sat 15/318:10IAD - BHD

2 stops16h 05mAer Lingus

Sat 22/315:05BHD - IAD

2 stops33h 10mAer Lingus

Deal found 20/11£643

Fri 16/518:50IAD - BHD

2 stops20h 55mMultiple Airlines

Fri 23/508:20BHD - IAD

2 stops14h 20mMultiple Airlines

Deal found 20/11£648

Fri 16/517:25IAD - BHD

1 stop18h 25mKLM

Fri 23/506:30BHD - IAD

2 stops16h 52mKLM

Deal found 20/11£759

Mon 20/116:58IAD - BHD

2 stops18h 52mVirgin Atlantic

Sat 25/106:30BHD - IAD

2 stops22h 48mVirgin Atlantic

Deal found 20/11£800

Sun 29/1214:35IAD - BFS

2 stops17h 15mMultiple Airlines

Wed 8/120:55BFS - IAD

3 stops26h 30mMultiple Airlines

Deal found 20/11£753

Last-minute flights from Dulles Intl to Northern Ireland
Discover last-minute flight deals from Dulles Intl to Northern Ireland. Data last updated 21 November 2024 and is based on user searches.

Fri 22/1121:55IAD - BHD

1 stop14h 20mAmerican Airlines

Mon 25/1106:35BHD - IAD

1 stop14h 00mAmerican Airlines

Deal found 20/11£587

Sun 29/1217:10IAD - BHD

2 stops16h 25mAer Lingus

Wed 8/119:25BHD - IAD

2 stops25h 15mAer Lingus

Deal found 20/11£662

Sun 29/1218:00IAD - BHD

1 stop11h 20mBritish Airways

Wed 8/119:25BHD - IAD

2 stops25h 15mBritish Airways

Deal found 20/11£684

Sun 29/1214:35IAD - BFS

2 stops17h 15mMultiple Airlines

Wed 8/120:55BFS - IAD

3 stops26h 30mMultiple Airlines

Deal found 20/11£753

Sun 29/1217:35IAD - BHD

1 stop22h 25mKLM

Wed 8/117:20BHD - IAD

1 stop27h 25mKLM

Deal found 20/11£798

Sun 29/1210:35IAD - BHD

3 stops26h 50mMultiple Airlines

Wed 8/107:25BHD - IAD

2 stops16h 00mMultiple Airlines

Deal found 20/11£931

One-way flights from Dulles Intl to Northern Ireland
Search for one-way flight options from Dulles Intl to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated 21 November 2024.

Wed 11/1221:55IAD - BHD

1 stop17h 20mBritish Airways

Deal found 20/11£315

Wed 11/1211:40IAD - BHD

2 stops24h 10mDelta

Deal found 20/11£372

Wed 11/1219:40IAD - BFS

2 stops17h 15mMultiple Airlines

Deal found 20/11£416

Find flights from Dulles Intl to Northern Ireland within your budget

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 9/1

21:55-14:00

1 stop11h 05m

Belfast City

Mon 13/1

11:30-19:45

1 stop13h 15m

£497

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 14/2

18:00-10:30

1 stop11h 30m

Belfast City

Sat 22/2

09:10-15:35

1 stop11h 25m

£499

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 24/1

17:16-16:50

2 stops18h 34m

Belfast City

Sat 8/2

06:30-18:55

2 stops17h 25m

£537

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sat 15/3

18:10-14:15

2 stops16h 05m

Belfast City

Sat 22/3

15:05-20:15

2 stops33h 10m

£643

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 16/5

18:50-20:45

2 stops20h 55m

Belfast City

Fri 23/5

08:20-17:40

2 stops14h 20m

£648

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Sun 29/12

14:35-12:50

2 stops17h 15m

Belfast Intl

Wed 8/1

20:55-18:25

3 stops26h 30m

£753

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 16/5

17:25-16:50

1 stop18h 25m

Belfast City

Fri 23/5

06:30-18:22

2 stops16h 52m

£759

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 20/1

16:58-16:50

2 stops18h 52m

Belfast City

Sat 25/1

06:30-00:18

2 stops22h 48m

£800

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 11/12

21:55-20:15

1 stop17h 20m

£315

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 11/12

11:40-16:50

2 stops24h 10m

£372

Flights are sorted by cheapest return flights first.

Deals found on 20/11

Showing 1-10 of 11 results

Best time to book a flight from Dulles Intl to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from Dulles Intl with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Dulles Intl to Northern Ireland

Get recent, data-driven insights about flights from Dulles Intl to Northern Ireland including ideal travel times, pricing trends, and more.

Rainfall in Northern Ireland by month

In terms of precipitation, rainfall in Northern Ireland ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Northern Ireland when rainfall is around 50.0 mm.

Temperature in Northern Ireland by month

If weather is an important factor for your trip to Northern Ireland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Northern Ireland

Delta

8.0

Very Good

8,756 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very Good

8,756 reviews

Delta

8.0

Very Good

8,756 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,350 reviews

Delta

8.0

Very Good

8,756 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic

7.5

Good

663 reviews

Delta

8.0

Very Good

8,756 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very Good

8,756 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Aer Lingus

7.1

Good

1,089 reviews

Delta

8.0

Very Good

8,756 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Can I find deals for flights from Dulles Intl to Northern Ireland that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Northern Ireland flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Northern Ireland?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Northern Ireland.
Can I find deals for business class flights from Dulles Intl to Northern Ireland?
Yes. Cheapflights offers flight deals from Dulles Intl to Northern Ireland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Northern Ireland?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Northern Ireland (average of £67). Flying from Washington, D.C. Dulles Intl Airport to Northern Ireland in August is currently the most expensive (average of £90). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Dulles Intl to Northern Ireland

Dulles Intl to Heathrow flights

Baltimore to Heathrow flights

Dulles Intl to Gatwick flights

Reagan-National to Heathrow flights

Dulles Intl to London City flights

Baltimore to Gatwick flights

Reagan-National to Gatwick flights

Baltimore to Stansted flights

Dulles Intl to Luton flights

Baltimore to Luton flights

Dulles Intl to Edinburgh flights

Baltimore to Edinburgh flights

Reagan-National to Edinburgh flights

Dulles Intl to Manchester flights

Baltimore to Manchester flights

Dulles Intl to Glasgow Intl flights

Reagan-National to Manchester flights

Baltimore to London City flights

Baltimore to Glasgow Intl flights

Dulles Intl to Southampton flights

Dulles Intl to Inverness flights

Dulles Intl to Liverpool flights

Baltimore to Birmingham flights

Dulles Intl to Birmingham flights

Dulles Intl to Newcastle upon Tyne flights

Baltimore to Southampton flights

Dulles Intl to Leeds flights

Reagan-National to Luton flights

Dulles Intl to Bristol flights

Dulles Intl to Aberdeen flights

Baltimore to Bristol flights

Reagan-National to Bristol flights

Baltimore to Newcastle upon Tyne flights

Dulles Intl to Cardiff flights

Baltimore to Cardiff flights

Baltimore to Leeds flights

Direct flights to United Kingdom

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How does Cheapflights help users find flights from Dulles Intl to Northern Ireland?

Cheapflights makes it easy to find Dulles Intl to Northern Ireland flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Dulles Intl to Northern Ireland?

Millions of users choose and trust Cheapflights to book the best flight deals from Dulles Intl to Northern Ireland for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Dulles Intl to Northern Ireland with no change fees?

Yes! Cheapflights helps users easily find flights from Dulles Intl to Northern Ireland with no change fees.

Can Cheapflights notify me if prices for flights from Dulles Intl to Northern Ireland become cheaper?

Not ready to book yet? You can track prices for flights from Dulles Intl to Northern Ireland on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from Washington, D.C. Dulles Intl Airport to Northern Ireland from £315

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Dulles Intl to Northern Ireland

Find flight deals from Dulles Intl to Northern Ireland

Cheapest flights from Dulles Intl to Northern IrelandExplore the most affordable flight options available from Dulles Intl to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 November 2024.

Explore the most affordable flight options available from Dulles Intl to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 November 2024.

Find flights from Dulles Intl to Northern Ireland within your budget

Best time to book a flight from Dulles Intl to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from Dulles Intl with our price prediction graph.

Travel insights for flights from Dulles Intl to Northern Ireland

Get recent, data-driven insights about flights from Dulles Intl to Northern Ireland including ideal travel times, pricing trends, and more.

Rainfall in Northern Ireland by month

Plan your trip to Northern Ireland by taking into account the average rainfall totals by month.

Temperature in Northern Ireland by month

Plan your trip to Northern Ireland by taking into account the average temperature totals by month.

Reviews of airlines servicing Northern Ireland

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Northern Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find deals for flights from Dulles Intl to Northern Ireland that include hotel bookings?

How can I find direct flights from Dulles Intl to Northern Ireland?

Can I find deals for business class flights from Dulles Intl to Northern Ireland?

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Northern Ireland?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dulles Intl to Northern Ireland

See prices for flight routes from nearby airports that may be better suited for you.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Dulles Intl to Northern Ireland?

Why should you use Cheapflights to find cheap flight tickets from Dulles Intl to Northern Ireland?

Can Cheapflights find flights from Dulles Intl to Northern Ireland with no change fees?

Can Cheapflights notify me if prices for flights from Dulles Intl to Northern Ireland become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Dulles Intl to Northern Ireland
Explore the most affordable flight options available from Dulles Intl to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 November 2024.