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Cheap flights from Washington, D.C. Dulles Intl Airport to Belfast from $387

This is the cheapest one-way 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 Belfast departing on 11/16. 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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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Belfast

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
6:20 pm - 10:20 amIAD-BHD
11h 00m1 stop
British Airways Logo
11:05 am - 8:55 pmBHD-IAD
13h 50m1 stop
$630British Airways
Find Deal
jue., mar. 5 - jue., mar. 12
British Airways Logo
6:20 pm - 10:20 amIAD-BHD
11h 00m1 stop
British Airways Logo
6:35 am - 4:35 pmBHD-IAD
14h 00m1 stop
$631British Airways
Find Deal
jue., mar. 5 - jue., mar. 12
Multiple Airlines Logo
6:05 pm - 4:50 pmIAD-BHD
17h 45m1 stop
Multiple Airlines Logo
6:30 am - 4:05 pmBHD-IAD
14h 35m1 stop
$651Multiple Airlines
Find Deal
mié., nov. 26 - mié., dic. 3
Multiple Airlines Logo
6:05 pm - 4:50 pmIAD-BHD
17h 45m1 stop
Multiple Airlines Logo
5:20 pm - 4:05 pmBHD-IAD
27h 45m1 stop
$652Multiple Airlines
Find Deal
mié., nov. 26 - mié., dic. 3
Delta Logo
12:23 pm - 4:50 pmIAD-BHD
23h 27m2 stops
Delta Logo
6:30 am - 5:05 pmBHD-IAD
14h 35m1 stop
$665Delta
Find Deal
jue., mar. 5 - jue., mar. 12
Delta Logo
12:23 pm - 4:50 pmIAD-BHD
23h 27m2 stops
Delta Logo
6:30 am - 5:05 pmBHD-IAD
14h 35m1 stop
$666Delta
Find Deal
jue., mar. 5 - jue., mar. 12
Virgin Atlantic Logo
5:50 pm - 4:55 pmIAD-BHD
18h 05m1 stop
Virgin Atlantic Logo
6:30 am - 3:35 pmBHD-IAD
14h 05m1 stop
$678Virgin Atlantic
Find Deal
mié., abr. 1 - dom., abr. 5
Virgin Atlantic Logo
6:10 am - 4:55 pmIAD-BHD
29h 45m2 stops
Virgin Atlantic Logo
5:25 pm - 3:35 pmBHD-IAD
27h 10m1 stop
$680Virgin Atlantic
Find Deal
mié., abr. 1 - dom., abr. 5
American Airlines Logo
9:45 pm - 2:15 pmIAD-BHD
11h 30m1 stop
American Airlines Logo
6:45 am - 4:59 pmBHD-IAD
15h 14m2 stops
$751American Airlines
Find Deal
lun., dic. 1 - vie., dic. 12
American Airlines Logo
6:20 pm - 10:40 amIAD-BHD
11h 20m1 stop
American Airlines Logo
6:35 am - 5:16 pmBHD-IAD
15h 41m2 stops
$815American Airlines
Find Deal
lun., ene. 5 - mié., ene. 14

Virgin Atlantic flights from Washington, D.C. Dulles Intl Airport to Belfast City Airport

Our best Virgin Atlantic deals on Washington, D.C. Dulles Intl Airport to Belfast City Airport flight tickets
Virgin Atlantic
Apr 1
IAD5:50 pmWashington, D.C. Dulles Intl
18h 05m
1 stop
BHD4:55 pmBelfast City
Apr 5
BHD6:30 amBelfast City
14h 05m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$678
Find similar
Virgin Atlantic
Apr 1
IAD6:10 amWashington, D.C. Dulles Intl
29h 45m
2 stops
BHD4:55 pmBelfast City
Apr 5
BHD5:25 pmBelfast City
27h 10m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$680
Find similar
Virgin Atlantic
Apr 1
IAD5:50 pmWashington, D.C. Dulles Intl
18h 05m
1 stop
BHD4:55 pmBelfast City
Apr 5
BHD6:30 amBelfast City
34h 23m
2 stops
IAD11:53 amWashington, D.C. Dulles Intl
$693
Find similar

American Airlines flights from Washington, D.C. Dulles Intl Airport to Belfast City Airport

Our best American Airlines deals on Washington, D.C. Dulles Intl Airport to Belfast City Airport flight tickets
American Airlines
Dec 1
IAD9:45 pmWashington, D.C. Dulles Intl
11h 30m
1 stop
BHD2:15 pmBelfast City
Dec 12
BHD6:45 amBelfast City
15h 14m
2 stops
IAD4:59 pmWashington, D.C. Dulles Intl
$751
Find similar
American Airlines
Jan 5
IAD6:20 pmWashington, D.C. Dulles Intl
11h 20m
1 stop
BHD10:40 amBelfast City
Jan 14
BHD6:35 amBelfast City
15h 41m
2 stops
IAD5:16 pmWashington, D.C. Dulles Intl
$815
Find similar
American Airlines
Nov 14
IAD2:16 pmWashington, D.C. Dulles Intl
15h 14m
2 stops
BHD10:30 amBelfast City
Nov 18
BHD6:35 amBelfast City
15h 14m
2 stops
IAD4:49 pmWashington, D.C. Dulles Intl
$844
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Belfast City Airport 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 832,500 searches. Data last updated noviembre 6, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Belfast City Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

jue. 3/5

6:20 pm-10:20 am

1 stop11h 00m

Belfast City

jue. 3/12

11:05 am-8:55 pm

1 stop13h 50m

$630

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

jue. 3/5

6:20 pm-10:20 am

1 stop11h 00m

Belfast City

jue. 3/12

6:35 am-4:35 pm

1 stop14h 00m

$631

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

mié. 11/26

6:05 pm-4:50 pm

1 stop17h 45m

Belfast City

mié. 12/3

6:30 am-4:05 pm

1 stop14h 35m

$651

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

mié. 11/26

6:05 pm-4:50 pm

1 stop17h 45m

Belfast City

mié. 12/3

5:20 pm-4:05 pm

1 stop27h 45m

$652

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

jue. 3/5

12:23 pm-4:50 pm

2 stops23h 27m

Belfast City

jue. 3/12

6:30 am-5:05 pm

1 stop14h 35m

$665

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

jue. 3/5

12:23 pm-4:50 pm

2 stops23h 27m

Belfast City

jue. 3/12

6:30 am-5:05 pm

1 stop14h 35m

$666

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

mié. 4/1

5:50 pm-4:55 pm

1 stop18h 05m

Belfast City

dom. 4/5

6:30 am-3:35 pm

1 stop14h 05m

$678

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

mié. 4/1

6:10 am-4:55 pm

2 stops29h 45m

Belfast City

dom. 4/5

5:25 pm-3:35 pm

1 stop27h 10m

$680

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

lun. 12/1

9:45 pm-2:15 pm

1 stop11h 30m

Belfast City

vie. 12/12

6:45 am-4:59 pm

2 stops15h 14m

$751

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

lun. 1/5

6:20 pm-10:40 am

1 stop11h 20m

Belfast City

mié. 1/14

6:35 am-5:16 pm

2 stops15h 41m

$815

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Belfast from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Belfast City Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Belfast City Airport?

On average, the least expensive day to fly to Belfast City Airport from Washington, D.C. Dulles Intl Airport is on a Thursday. momondo users have found tickets for Thursday departures for as low as $626. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday is the most expensive day to depart from Washington, D.C. Dulles Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $873.

What is the cheapest time of day to depart on your flight to Belfast City Airport?

According to our data, the cheapest time of day to fly to Belfast City Airport is in the afternoon. momondo users have found flights departing from Washington, D.C. Dulles Intl Airport to Belfast City Airport in the afternoon for as low as $708. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $779.

Can stopping save me money on Washington, D.C. Dulles Intl Airport to Belfast City Airport flights?

You could potentially save up to 14% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Belfast City Airport flight.

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

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

Cheap Washington, D.C. Dulles Intl Airport to Belfast City Airport (IAD to BHD) flight deals and tips

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

Direct flights

None
There are no direct flights from Washington, D.C. Dulles Intl Airport to Belfast City Airport. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Belfast City Airport.
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  • How far is Washington, D.C. Dulles Intl to Belfast City by plane?

    Belfast City is 3389.6 mi away from Washington, D.C. Dulles Intl. A reasonable flight in good conditions will take 11h 00m.

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

    Prices for flights from Washington, D.C. Dulles Intl Airport to Belfast City Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Belfast City Airport?

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl Airport to Belfast City Airport.

  • What documentation or ID do you need to fly to Belfast City Airport?

    The travel and health documents you'll need for your trip to Belfast City Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Belfast City Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Washington, D.C. Dulles Intl Airport to Belfast City Airport?

Best airlines flying from Washington, D.C. Dulles Intl Airport to Belfast City Airport

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Belfast City Airport with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $620Free CancellationRating
6.7
7,500 reviews
Search British Airways flights

Traveling to a place near Belfast?

Book flights to Belfast if you plan to visit one of these locations
Newcastle
Bangor

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Belfast?

It is quick and easy to find Washington, D.C. to Belfast flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Belfast that suits you.

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

Yes. All flights to Belfast from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

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 Belfast.

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

Of course. momondo tracks the price of Washington, D.C. to Belfast flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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