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Cheap flights from Northern Ireland to Washington, D.C. Dulles Intl Airport from £605

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 31/1. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — IAD
23 12月 — 30 12月1
1 adult

Cheap flight deals from Northern Ireland to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Northern Ireland (GBNIR) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 12月 2024.

Round-trip from

£605
31/1-7/2
  • 31/1-7/2
  • 4 total stops
  • 39h 10m total
  • Northern Ireland to Washington, D.C.

Find flight deals from Northern Ireland to Dulles Intl

Best flights from Northern Ireland to Dulles Intl
Discover carefully curated flight deals from Northern Ireland to Dulles Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 12月 2024.

金 31/106:15BFS - IAD
2 stops17h 10mMultiple Airlines
金 7/219:40IAD - BFS
2 stops22h 00mMultiple Airlines
Deal found 17/12£605
月 3/306:30BHD - IAD
1 stop14h 15mKLM
月 10/312:30IAD - BHD
2 stops24h 20mKLM
Deal found 16/12£676
月 3/306:35BHD - IAD
2 stops16h 26mAmerican Airlines
月 10/322:55IAD - BHD
1 stop11h 15mAmerican Airlines
Deal found 16/12£679
月 3/306:35BHD - IAD
2 stops22h 18mBritish Airways
月 10/313:52IAD - BHD
2 stops16h 38mBritish Airways
Deal found 16/12£681
月 3/306:30BHD - IAD
1 stop14h 15mDelta
月 10/318:35IAD - BHD
1 stop22h 25mDelta
Deal found 16/12£690
月 3/306:35BHD - IAD
1 stop18h 10mFinnair
月 10/322:55IAD - BHD
1 stop13h 20mFinnair
Deal found 16/12£698
金 21/308:40BHD - IAD
1 stop11h 55mIberia
金 28/319:00IAD - BHD
1 stop11h 30mIberia
Deal found 17/12£726

Find flights from Northern Ireland to Dulles Intl within your budget

Customise your flight search to find flights from Northern Ireland to Dulles Intl 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, Cheapflights users made 858,174 searches. Data last updated 18 12月 2024.

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Any airport

Fly to

Any airport

Route

Depart

Return

Price

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

金 31/1

06:15-18:25

2 stops17h 10m

Washington, D.C. Dulles Intl

金 7/2

19:40-22:40

2 stops22h 00m

£605

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

月 3/3

06:30-15:45

1 stop14h 15m

Washington, D.C. Dulles Intl

月 10/3

18:35-16:50

1 stop18h 15m

£676

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

月 3/3

06:35-18:01

2 stops16h 26m

Washington, D.C. Dulles Intl

月 10/3

22:55-14:10

1 stop11h 15m

£679

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

月 3/3

06:35-23:53

2 stops22h 18m

Washington, D.C. Dulles Intl

月 10/3

13:52-10:30

2 stops16h 38m

£681

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

月 3/3

06:30-15:45

1 stop14h 15m

Washington, D.C. Dulles Intl

月 10/3

18:35-21:00

1 stop22h 25m

£690

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

月 3/3

06:35-19:45

1 stop18h 10m

Washington, D.C. Dulles Intl

月 10/3

22:55-16:15

1 stop13h 20m

£698

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

金 21/3

08:40-16:35

1 stop11h 55m

Washington, D.C. Dulles Intl

金 28/3

19:00-10:30

1 stop11h 30m

£726

Flights are sorted by cheapest return flights first.

Deals found on 17/12

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

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Northern Ireland 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 Northern Ireland to Dulles Intl

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

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

Find hourly flight availability from Northern Ireland to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 12月 2024.

When flying from Northern Ireland to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 66.0 mm.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated 18 12月 2024.
8.0
Very Good
8,604 reviews

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

8.0
Very Good
8,604 reviews
8.0
Very Good
8,604 reviews

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.8
Good
1,349 reviews
8.0
Very Good
8,604 reviews

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.7
Good
1,285 reviews
8.0
Very Good
8,604 reviews

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.2
Good
10,000 reviews
8.0
Very Good
8,604 reviews

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.0
Good
2,656 reviews
8.0
Very Good
8,604 reviews

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Northern Ireland to Dulles Intl. 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 Northern Ireland to Dulles Intl that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Northern Ireland to Dulles Intl 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 Northern Ireland to Washington, D.C. Dulles Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Northern Ireland to Washington, D.C. Dulles Intl Airport (average of £599). Flying from Northern Ireland to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £898). 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

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Alternative routes for Northern Ireland to Dulles Intl

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

Top airline flying from Northern Ireland to Dulles Intl

Discover the top airline that operate flights from Northern Ireland to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 12月 2024.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£718Average£752FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Northern Ireland to Dulles Intl flexibly with Cheapflights today.

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

Yes, Cheapflights offers price alerts on Northern Ireland to Dulles Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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