HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Dulles Intl (IAD) to Belfast Intl (BFS) from $792

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
IAD — BFS
May 11 — May 181
From?
To?
Sat 5/11
Sat 5/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Cheap flight deals from Dulles Intl to Belfast Intl

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Belfast Intl (BFS). 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 May 6, 2024.

Popular in

October

Cheapest in

February

Average price

$829

Round-trip from

$640
High demand for flights, 24% potential price rise
Search Deals
Best time to find cheap flights, 26% potential price drop
Search Deals
Average for round-trip flights in May 2024
Search Deals
From Washington, D.C. Dulles Intl to Belfast Intl
Search Deals

What is the cheapest day to fly round-trip from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport?

Departing on a Thursday is a good option for securing a great price. You can expect to save up to 35% when planning your travel around this day of the week.

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

The best pricing can be found in the month of September. Prices to Belfast Intl Airport from Washington, D.C. Dulles Intl Airport average $840. You can even find prices in September for less than $840, as users have found deals to Belfast Intl Airport from as low as $678. The month of December appears to be one of the more expensive times to travel to Belfast Intl Airport from Washington, D.C. Dulles Intl Airport. Flying in the targeted month can save you up to 40%.

When is the cheapest time to fly from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport (IAD - BFS)?

One of the essential ways to save on airfare from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 13% on airfare.

Cheap Dulles Intl to Belfast Intl flights in May & June 2024

Find cheap flight options from Dulles Intl to Belfast Intl specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,689,106 searches. Prices were last updated on May 6, 2024.
Tue 6/41:00 pmIAD - BFS
3 stops25h 20mMultiple Airlines
Tue 6/118:10 pmBFS - IAD
2 stops26h 30mMultiple Airlines
Deal found 5/5$956
Wed 6/126:50 pmIAD - BFS
2 stops13h 50mMultiple Airlines
Wed 6/196:05 amBFS - IAD
2 stops16h 35mMultiple Airlines
Deal found 5/5$959
Fri 6/76:50 pmIAD - BFS
2 stops13h 45mMultiple Airlines
Fri 6/146:50 amBFS - IAD
2 stops15h 50mMultiple Airlines
Deal found 5/5$969
Tue 6/46:50 pmIAD - BFS
2 stops19h 40mMultiple Airlines
Tue 6/118:10 pmBFS - IAD
2 stops26h 30mMultiple Airlines
Deal found 5/5$1,006
Wed 6/1210:20 pmIAD - BFS
2 stops17h 40mMultiple Airlines
Sun 6/1610:10 pmBFS - IAD
2 stops23h 05mMultiple Airlines
Deal found 5/5$1,078
Tue 6/41:00 pmIAD - BFS
3 stops25h 20mMultiple Airlines
Tue 6/1110:00 pmBFS - IAD
3 stops24h 40mMultiple Airlines
Deal found 5/5$1,082
Wed 6/121:00 pmIAD - BFS
2 stops17h 40mMultiple Airlines
Wed 6/1910:35 amBFS - IAD
1 stop14h 55mMultiple Airlines
Deal found 5/5$1,413

Dulles Intl to Belfast Intl 2024 flight deals

Discover exclusive flight deals for travel between Dulles Intl and Belfast Intl in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,689,106 searches. Data last updated May 6, 2024.
Tue 9/248:30 pmIAD - BFS
2 stops19h 40mMultiple Airlines
Mon 9/306:15 amBFS - IAD
3 stops35h 47mMultiple Airlines
Deal found 5/5$792
Tue 9/248:30 pmIAD - BFS
2 stops19h 40mMultiple Airlines
Mon 9/306:50 amBFS - IAD
2 stops15h 50mMultiple Airlines
Deal found 5/5$800
Mon 7/228:30 pmIAD - BFS
2 stops19h 20mMultiple Airlines
Wed 7/319:00 pmBFS - IAD
3 stops25h 40mMultiple Airlines
Deal found 5/5$813
Mon 7/228:30 pmIAD - BFS
2 stops14h 10mMultiple Airlines
Wed 7/319:40 pmBFS - IAD
2 stops25h 00mMultiple Airlines
Deal found 5/5$848
Fri 10/118:30 pmIAD - BFS
2 stops21h 30mMultiple Airlines
Sat 10/199:25 pmBFS - IAD
2 stops25h 15mMultiple Airlines
Deal found 5/4$879
Wed 7/318:30 pmIAD - BFS
2 stops20h 30mMultiple Airlines
Wed 8/79:40 pmBFS - IAD
2 stops25h 00mMultiple Airlines
Deal found 5/6$918
Fri 10/118:30 pmIAD - BFS
2 stops21h 30mMultiple Airlines
Sat 10/199:25 pmBFS - IAD
3 stops25h 15mMultiple Airlines
Deal found 5/4$921
Tue 6/41:00 pmIAD - BFS
3 stops25h 20mMultiple Airlines
Tue 6/118:10 pmBFS - IAD
2 stops26h 30mMultiple Airlines
Deal found 5/5$956
Wed 6/126:50 pmIAD - BFS
2 stops13h 50mMultiple Airlines
Wed 6/196:05 amBFS - IAD
2 stops16h 35mMultiple Airlines
Deal found 5/5$959

Find flights from Dulles Intl to Belfast Intl within your budget

Customize your flight search to find flights from Dulles Intl to Belfast 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 2,689,106 searches. Data last updated May 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$792 - $969

Route

Depart

Return

Price

Washington, D.C. Dulles IntlBelfast Intl

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Tue 9/24

2 stops19h 40m

Belfast Intl

Mon 9/30

3 stops35h 47m

$792

Washington, D.C. Dulles IntlBelfast Intl

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Tue 9/24

2 stops19h 40m

Belfast Intl

Mon 9/30

2 stops15h 50m

$800

Washington, D.C. Dulles IntlBelfast Intl

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Mon 7/22

2 stops19h 20m

Belfast Intl

Wed 7/31

3 stops25h 40m

$813

Washington, D.C. Dulles IntlBelfast Intl

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Mon 7/22

2 stops14h 10m

Belfast Intl

Wed 7/31

2 stops25h 00m

$848

Washington, D.C. Dulles IntlBelfast Intl

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Fri 10/11

2 stops21h 30m

Belfast Intl

Sat 10/19

2 stops25h 15m

$879

Washington, D.C. Dulles IntlBelfast Intl

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Fri 10/11

2 stops21h 30m

Belfast Intl

Sat 10/19

3 stops25h 15m

$921

Washington, D.C. Dulles IntlBelfast Intl

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Tue 6/4

3 stops25h 20m

Belfast Intl

Tue 6/11

2 stops26h 30m

$956

Washington, D.C. Dulles IntlBelfast Intl

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Wed 6/12

2 stops13h 50m

Belfast Intl

Wed 6/19

2 stops16h 35m

$959

Washington, D.C. Dulles IntlBelfast Intl

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Fri 6/7

2 stops13h 45m

Belfast Intl

Fri 6/14

2 stops15h 50m

$969

Flights are sorted by cheapest first

Deals found on 5/5

When is the cheapest time to fly from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Belfast Intl. Price data was last updated on May 5, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Belfast Intl Airport flight should consider departing on Friday afternoons when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Belfast Intl by month

Plan your trip from Dulles Intl to Belfast Intl by taking into account the cheapest months to travel. The average price of a one-way flight from Dulles Intl to Belfast Intl is currently $0 while a round-trip flight costs $882. Price data was last updated on April 28, 2024.

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport (average of $641). Flying from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport in June is currently the most expensive (average of $1,181). 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.

January

$674

February

$641

March

$690

April

$686

May

$788

June

$1,181

July

$988

August

$869

September

$759

October

$684

November

$658

December

$728

Temperature and rainfall in Belfast Intl by month

Plan your trip to Belfast Intl by taking into account the average temperature and rainfall totals by month.

BFS

Temperature

41 - 60.8 °F

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Belfast 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 flights from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport for under $800 on Cheapflights?

    Yes, there are multiple flights from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport for under $800. The cheapest flight booked recently is on Multiple Airlines for just $792, but on average you can expect to pay $962.

  • What does IAD to BFS mean?

    Washington, D.C. Dulles Intl Airport is IAD and Belfast Intl Airport is BFS. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

  • Can I find deals for flights from Dulles Intl to Belfast Intl that include extra baggage allowance?

    The amount of baggage you can bring on your Dulles Intl to Belfast Intl flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Dulles Intl to Belfast Intl with specific airlines?

    Yes, Cheapflights allows you to browse and filter Dulles Intl to Belfast Intl flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Dulles Intl to Belfast Intl that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Belfast Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Belfast 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.

  • Can I find deals for flights from Dulles Intl to Belfast Intl that allow pets onboard?

    Many airlines flying from Dulles Intl to Belfast Intl offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Dulles Intl to Belfast Intl?

    Yes, you can often find last-minute deals on Dulles Intl to Belfast Intl flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Washington, D.C. Dulles Intl Airport to Belfast Intl Airport flight deals updated?

    The Washington, D.C. Dulles Intl Airport to Belfast Intl Airport flight deals you see on this page were last updated on 5/6.

See more FAQs

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

Baltimore to Belfast City flights
Dulles Intl to Belfast City flights
Reagan-National to Belfast City flights

Top 2 airlines flying from Dulles Intl to Belfast Intl

Discover the top 2 airlines that operate flights from Dulles Intl to Belfast 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 2,689,106 searches. Data last updated May 6, 2024.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$626Average$926FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest$626Average$754FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
San Francisco to Shanghai flights
Spokane to Seattle flights
San Francisco to Istanbul flights
Dallas to New Orleans flights
Detroit to Nashville flights
Los Angeles to Puerto Vallarta flights
Las Vegas to Chicago flights
Phoenix to New York flights
Sacramento to Dallas flights
Omaha to Las Vegas flights
USA to Israel flights
Washington, D.C. Dulles Intl Airport to Bulgaria flights

Search flights from Dulles Intl to Belfast Intl by cabin class

Find flights from Dulles Intl to Belfast Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Saint Peter Jersey
Flights to Kirkwall Arpt
Flights to Skiathos
Flights to Naxos
Flights to Ningbo Lishe Intl
Flights to Edremit/Korfez
Flights to Bourgas
Flights to Bodø
Flights to Pellston Emmet County
Flights to Cornwall Newquay
Flights to Ordu/Giresun
Flights to Batumi
Flights to Mason City
Flights to Biarritz Parme
Flights to Zakynthos Dionsios Salomos
Flights to Cortez Montezuma County
Flights to Clermont-Ferrand Aulnat
Flights to Nevsehir
Flights to Hyannis Barnstable
Flights to Girona Costa Brava
Flights to Kagoshima
Flights to Perugia Sant Egidio
Flights to Oran Es Senia
Flights to Chios

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers 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 Belfast Intl?

Cheapflights helps you search for flights from Dulles Intl to Belfast Intl via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Dulles Intl to Belfast Intl 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 Belfast Intl with no change fees?

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

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Belfast Intl from Dulles Intl today and book when prices fit your budget.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines