Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Washington, D.C. to Belfast from $366

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. to Belfast departing on 8/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Washington, D.C. to Belfast

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
5:35 pm - 9:00 am
IAD
-
BHD
10h 25m
1 stop
British Airways Logo
1:45 pm - 8:20 pm
BHD
-
IAD
11h 35m
1 stop
$965British Airways
Tue, May 5 - Tue, May 12
British Airways Logo
10:25 pm - 5:30 pm
IAD
-
BHD
14h 05m
1 stop
British Airways Logo
7:35 pm - 8:20 pm
BHD
-
IAD
29h 45m
1 stop
$983British Airways
Mon, May 4 - Mon, May 11
British Airways Logo
9:30 pm - 3:30 pm
BWI
-
BHD
13h 00m
1 stop
British Airways Logo
7:35 pm - 7:40 pm
BHD
-
BWI
29h 05m
1 stop
$983British Airways
Mon, May 4 - Mon, May 11
Multiple Airlines Logo
8:30 pm - 8:35 pm
IAD
-
BHD
19h 05m
2 stops
Multiple Airlines Logo
7:00 am - 7:20 pm
BHD
-
IAD
17h 20m
2 stops
$989Multiple Airlines
Sat, Apr 25 - Sun, May 3
Multiple Airlines Logo
8:30 pm - 8:35 pm
BWI
-
BHD
19h 05m
2 stops
Multiple Airlines Logo
7:00 am - 7:25 pm
BHD
-
BWI
17h 25m
2 stops
$989Multiple Airlines
Sat, Apr 25 - Sun, May 3
American Airlines Logo
5:35 pm - 7:50 pm
IAD
-
BHD
21h 15m
1 stop
American Airlines Logo
11:35 am - 11:59 pm
BHD
-
IAD
17h 24m
2 stops
$1,007American Airlines
Wed, May 6 - Wed, May 13
KLM Logo
6:50 pm - 4:55 pm
IAD
-
BHD
17h 05m
2 stops
KLM Logo
5:30 pm - 3:35 pm
BHD
-
IAD
27h 05m
1 stop
$1,012KLM
Tue, May 5 - Tue, May 12
KLM Logo
12:37 pm - 9:20 am
IAD
-
BHD
15h 43m
2 stops
KLM Logo
9:50 am - 9:24 pm
BHD
-
IAD
16h 34m
2 stops
$1,022KLM
Tue, May 5 - Tue, May 12
Delta Logo
10:40 am - 9:20 am
BWI
-
BHD
17h 40m
2 stops
Delta Logo
9:50 am - 10:49 pm
BHD
-
BWI
17h 59m
2 stops
$1,072Delta
Mon, May 4 - Mon, May 11
American Airlines Logo
8:17 pm - 6:45 pm
BWI
-
BHD
17h 28m
2 stops
American Airlines Logo
7:05 am - 12:26 am
BHD
-
BWI
22h 21m
2 stops
$1,086American Airlines
Thu, Jul 30 - Sat, Aug 22

Delta flights from Washington, D.C. to Belfast City Airport

Our best Delta deals on Washington, D.C. to Belfast City Airport flight tickets
Delta
May 4
IAD7:19 pmWashington, D.C. Dulles Intl
16h 36m
2 stops
BHD4:55 pmBelfast City
May 11
BHD9:50 amBelfast City
16h 34m
2 stops
IAD9:24 pmWashington, D.C. Dulles Intl
$1,072
Delta
Sep 4
IAD5:40 pmWashington, D.C. Dulles Intl
18h 15m
1 stop
BHD4:55 pmBelfast City
Sep 15
BHD9:50 amBelfast City
16h 28m
2 stops
IAD9:18 pmWashington, D.C. Dulles Intl
$1,116
Delta
Sep 4
IAD12:30 pmWashington, D.C. Dulles Intl
23h 25m
2 stops
BHD4:55 pmBelfast City
Sep 15
BHD9:50 amBelfast City
16h 28m
2 stops
IAD9:18 pmWashington, D.C. Dulles Intl
$1,121

Aer Lingus flights from Washington, D.C. to Belfast City Airport

Our best Aer Lingus deals on Washington, D.C. to Belfast City Airport flight tickets
Aer Lingus
Apr 16
IAD8:40 pmWashington, D.C. Dulles Intl
15h 40m
2 stops
BHD5:20 pmBelfast City
Apr 24
BHD6:50 amBelfast City
17h 35m
2 stops
IAD7:25 pmWashington, D.C. Dulles Intl
$1,182
Aer Lingus
May 19
IAD9:05 pmWashington, D.C. Dulles Intl
14h 30m
2 stops
BHD4:35 pmBelfast City
May 25
BHD6:20 pmBelfast City
26h 25m
2 stops
IAD3:45 pmWashington, D.C. Dulles Intl
$1,210
Aer Lingus
May 15
IAD5:15 pmWashington, D.C. Dulles Intl
16h 45m
2 stops
BHD3:00 pmBelfast City
May 22
BHD3:25 pmBelfast City
29h 20m
2 stops
IAD3:45 pmWashington, D.C. Dulles Intl
$1,285

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 April 8, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Belfast City Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 5/5

5:35 pm-9:00 am

1 stop10h 25m

Belfast City

Tue 5/12

1:45 pm-8:20 pm

1 stop11h 35m

$965

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 5/4

10:25 pm-5:30 pm

1 stop14h 05m

Belfast City

Mon 5/11

7:35 pm-8:20 pm

1 stop29h 45m

$983

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Mon 5/4

9:30 pm-3:30 pm

1 stop13h 00m

Belfast City

Mon 5/11

7:35 pm-7:40 pm

1 stop29h 05m

$983

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sat 4/25

8:30 pm-8:35 pm

2 stops19h 05m

Belfast City

Sun 5/3

7:00 am-7:20 pm

2 stops17h 20m

$989

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Sat 4/25

8:30 pm-8:35 pm

2 stops19h 05m

Belfast City

Sun 5/3

7:00 am-7:25 pm

2 stops17h 25m

$989

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 5/6

5:35 pm-7:50 pm

1 stop21h 15m

Belfast City

Wed 5/13

11:35 am-11:59 pm

2 stops17h 24m

$1,007

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 5/5

6:50 pm-4:55 pm

2 stops17h 05m

Belfast City

Tue 5/12

5:30 pm-3:35 pm

1 stop27h 05m

$1,012

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 5/5

12:37 pm-9:20 am

2 stops15h 43m

Belfast City

Tue 5/12

9:50 am-9:24 pm

2 stops16h 34m

$1,022

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Mon 5/4

10:40 am-9:20 am

2 stops17h 40m

Belfast City

Mon 5/11

9:50 am-10:49 pm

2 stops17h 59m

$1,072

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Thu 7/30

8:17 pm-6:45 pm

2 stops17h 28m

Belfast City

Sat 8/22

7:05 am-12:26 am

2 stops22h 21m

$1,086

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Belfast from

How to get the cheapest flight ticket from Washington, D.C. 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

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

You could potentially save up to 49% on your flight if you consider stops on a Washington, D.C. to Belfast City Airport flight.

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

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. 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. to Belfast City Airport (WAS to BHD) flight deals and tips

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

Fastest flight time

10h 25m

Direct flights

None
The fastest flight from Washington, D.C. to Belfast City Airport takes 10h 25m
There are no direct flights from Washington, D.C. to Belfast City Airport. There are no popular flight routes from Washington, D.C. to Belfast City Airport.
Search flight deals

Frequently asked questions about flying from Washington, D.C. to Belfast City Airport

  • How far is Washington, D.C. to Belfast City by plane?

    The distance between Washington, D.C. and Belfast City is about 3375.4 mi. Flights usually cover this in 10h 25m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Washington, D.C. to Belfast City Airport refresh daily.

  • How old do you have to be to fly from Washington, D.C. 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. 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.

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?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Belfast for you.

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

Yes. momondo allows you to filter the results for Washington, D.C. to Belfast flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Belfast from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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.

An easier way to manage your Belfast City Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 5/8
Fri 5/15
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Belfast

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
Flights to London Heathrow Airportfrom $529
Flights to London Gatwick Airportfrom $473
Flights to London City Airportfrom $657
Flights to London Stansted Airportfrom $523
Flights to London Luton Airportfrom $560
Flights to Glasgow Intl Airportfrom $566
Flights to Belfast Intl Airportfrom $711
Flights to London Southend Airportfrom $675