Cheap flights from Belfast International to Washington Dulles Intl

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Thu 10/12
Thu 17/12
From
#smartAirportField( "origin${leg}", $options['origin'], $options['originCode'], "#string('FROM_TO_INPUT_PLACEHOLDER_FFD')", "origin$leg", "origincode$leg" ) #nearbyAirportField("nearbyOriginCheck$leg", $nearbyO, false "$!options['origin']")
To
#smartAirportField( "destination${leg}", $options['destination'], $options['destinationCode'], "#string('FROM_TO_INPUT_PLACEHOLDER_FFD')", "destination${leg}", "destinationcode${leg}" ) #nearbyAirportField("nearbyDestinationCheck${leg}", $nearbyD, false, "$!options['destination']")
Leaving on
Thu 10/12
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#smartAirportField( "origin${leg}", $options['origin'], $options['originCode'], "#string('FROM_TO_INPUT_PLACEHOLDER_FFD')", "origin$leg", "origincode$leg" ) #nearbyAirportField("nearbyOriginCheck$leg", $nearbyO, false "$!options['origin']")
To
#smartAirportField( "destination${leg}", $options['destination'], $options['destinationCode'], "#string('FROM_TO_INPUT_PLACEHOLDER_FFD')", "destination${leg}", "destinationcode${leg}" ) #nearbyAirportField("nearbyDestinationCheck${leg}", $nearbyD, false, "$!options['destination']")
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#removeLegButton($self.id("removeLeg$leg"))
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#smartAirportField( "origin${leg}", $options['origin'], $options['originCode'], "#string('FROM_TO_INPUT_PLACEHOLDER_FFD')", "origin$leg", "origincode$leg" ) #nearbyAirportField("nearbyOriginCheck$leg", $nearbyO, false "$!options['origin']")
To
#smartAirportField( "destination${leg}", $options['destination'], $options['destinationCode'], "#string('FROM_TO_INPUT_PLACEHOLDER_FFD')", "destination${leg}", "destinationcode${leg}" ) #nearbyAirportField("nearbyDestinationCheck${leg}", $nearbyD, false, "$!options['destination']")
Leaving on
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#removeLegButton($self.id("removeLeg$leg"))
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#smartAirportField( "origin${leg}", $options['origin'], $options['originCode'], "#string('FROM_TO_INPUT_PLACEHOLDER_FFD')", "origin$leg", "origincode$leg" ) #nearbyAirportField("nearbyOriginCheck$leg", $nearbyO, false "$!options['origin']")
To
#smartAirportField( "destination${leg}", $options['destination'], $options['destinationCode'], "#string('FROM_TO_INPUT_PLACEHOLDER_FFD')", "destination${leg}", "destinationcode${leg}" ) #nearbyAirportField("nearbyDestinationCheck${leg}", $nearbyD, false, "$!options['destination']")
Leaving on
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#removeLegButton($self.id("removeLeg$leg"))
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#smartAirportField( "origin${leg}", $options['origin'], $options['originCode'], "#string('FROM_TO_INPUT_PLACEHOLDER_FFD')", "origin$leg", "origincode$leg" ) #nearbyAirportField("nearbyOriginCheck$leg", $nearbyO, false "$!options['origin']")
To
#smartAirportField( "destination${leg}", $options['destination'], $options['destinationCode'], "#string('FROM_TO_INPUT_PLACEHOLDER_FFD')", "destination${leg}", "destinationcode${leg}" ) #nearbyAirportField("nearbyDestinationCheck${leg}", $nearbyD, false, "$!options['destination']")
Leaving on
Depart
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Anytime
#removeLegButton($self.id("removeLeg$leg"))
From
#smartAirportField( "origin${leg}", $options['origin'], $options['originCode'], "#string('FROM_TO_INPUT_PLACEHOLDER_FFD')", "origin$leg", "origincode$leg" ) #nearbyAirportField("nearbyOriginCheck$leg", $nearbyO, false "$!options['origin']")
To
#smartAirportField( "destination${leg}", $options['destination'], $options['destinationCode'], "#string('FROM_TO_INPUT_PLACEHOLDER_FFD')", "destination${leg}", "destinationcode${leg}" ) #nearbyAirportField("nearbyDestinationCheck${leg}", $nearbyD, false, "$!options['destination']")
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#removeLegButton($self.id("removeLeg$leg"))
#infantInLapWarning('multiRightOfTravelers')

How to find the cheapest flight from
Belfast International (BFS) to Washington Dulles Intl (IAD)

What is the cheapest day to fly return from Belfast International to Washington Dulles Intl?

Users have found that leaving on a Sunday can be a cost-effective option. It’s possible to save up to 56% on your flight compared to booking on days when demand is much higher.

How far in advance should I book a flight from Belfast International to Washington Dulles Intl?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 34 days in advance, which can save you up to 27% on flights from Belfast International to Washington Dulles Intl compared to booking the week you need them. Waiting 34 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £547. For sooner than that we have options available in the next 3 days from £639.

What is the cheapest month to fly from Belfast International to Washington Dulles Intl?

The best pricing can be found in the month of February. Prices to Washington Dulles Intl from Belfast International average £501. You can even find prices in February for less than £501, as users have found deals to Washington Dulles Intl from as low as £335. The month of July appears to be one of the more expensive times to travel to Washington Dulles Intl from Belfast International. Flying in the targeted month can save you up to 21%.

When is the cheapest time to fly from Belfast International to Washington Dulles Intl (BFS - IAD)?

When flying from Belfast International to Washington Dulles Intl, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 2% versus a flight at midday.

Cheap flights from Belfast International to Washington Dulles Intl in December, January 2021

The best prices found for BFS to IAD flights in December, January
9 Jan - 23 Jan
£509pp
BFS
Belfast Intl
Multiple airlines
     
3 STOPS
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Multiple Airlines
 
1 STOP
BFS
Belfast Intl
9 Jan - 23 Jan
£521pp
BFS
Belfast Intl
Multiple airlines
     
3 STOPS
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Multiple Airlines
   
2 STOPS
BFS
Belfast Intl
9 Jan - 23 Jan
£603pp
BFS
Belfast Intl
Multiple airlines
     
3 STOPS
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Multiple Airlines
     
3 STOPS
BFS
Belfast Intl

Related info for your journey

Useful info, stats and facts about Belfast International to Washington Dulles Intl flights.

Flight FAQs

From Belfast International to Washington Dulles Intl

Are flight prices decreasing from Belfast International to Washington Dulles Intl due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Belfast International and Washington Dulles Intl for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Which airlines flying from Belfast Intl to Washington Dulles Intl have flexible changes due to COVID-19?

British Airways is one of the carriers that may have flexible change policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Belfast International to Washington Dulles Intl for under £523 on Cheapflights?

Yes, there are multiple flights from Belfast International to Washington Dulles Intl for under £523. The cheapest flight booked recently is on Multiple Airlines for just £509, but on average you can expect to pay £544.

Are there direct flights from Belfast International to Washington Dulles Intl for under £523 on Cheapflights?

There are no direct flights from Belfast International to Washington Dulles Intl, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Does it rain more in Belfast International or Washington Dulles Intl?

Expected rainfall in Belfast International is same as in Washington Dulles Intl. You can expect this to be the case over the next 25 days.

Is Belfast International weather warmer or cooler than Washington Dulles Intl?

Temperatures around the 31 °Cs can be experienced in July. The weather in Washington Dulles Intl is hotter than in Belfast International. Plan for potential changes in flight availability as peak weather approaches in this location.

Alternative routes for Belfast International to Washington Dulles Intl

Destination information for Washington Dulles Intl

Things to know before you go. Useful info for your trip from Belfast International to Washington Dulles Intl
Today's exchange rate
£1 = $1.34
Average temperature for December in Washington Dulles Intl
9.0 °C
Avg rainfall for December in Washington Dulles Intl
81.0 mm

Airports servicing Belfast

Airports servicing Washington

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