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Cheap flights from Belfast City Airport to Washington from $723

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Belfast City Airport to Washington departing on 2/13. 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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0 bags

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Find the cheapest flights from Belfast City Airport to Washington

Cheap round-trip flights

Multiple Airlines Logo
6:45 am - 5:00 pmBHD-SEA
18h 15m2 stops
Multiple Airlines Logo
2:35 pm - 4:45 pmSEA-BHD
18h 10m2 stops
$723Multiple Airlines
Find Deal
Fri, Feb 13 - Tue, Feb 17
British Airways Logo
11:30 am - 4:55 pmBHD-SEA
13h 25m1 stop
British Airways Logo
6:50 pm - 6:40 pmSEA-BHD
15h 50m1 stop
$741British Airways
Find Deal
Fri, Feb 13 - Tue, Feb 17
British Airways Logo
11:30 am - 11:07 pmBHD-SEA
19h 37m2 stops
British Airways Logo
1:25 pm - 11:30 amSEA-BHD
14h 05m1 stop
$747British Airways
Find Deal
Fri, Feb 13 - Tue, Feb 17
American Airlines Logo
9:05 am - 4:55 pmBHD-SEA
15h 50m1 stop
American Airlines Logo
7:50 pm - 6:35 pmSEA-BHD
15h 45m1 stop
$754American Airlines
Find Deal
Thu, Mar 5 - Mon, Mar 9
American Airlines Logo
11:05 am - 4:55 pmBHD-SEA
13h 50m1 stop
American Airlines Logo
1:48 pm - 2:15 pmSEA-BHD
17h 27m2 stops
$757American Airlines
Find Deal
Thu, Mar 5 - Mon, Mar 9
American Airlines Logo
6:35 am - 11:07 pmBHD-SEA
24h 32m2 stops
American Airlines Logo
1:48 pm - 2:15 pmSEA-BHD
17h 27m2 stops
$759American Airlines
Find Deal
Thu, Mar 5 - Mon, Mar 9
American Airlines Logo
6:35 am - 11:07 pmBHD-SEA
24h 32m2 stops
American Airlines Logo
1:48 pm - 2:15 pmSEA-BHD
17h 27m2 stops
$762American Airlines
Find Deal
Thu, Mar 5 - Mon, Mar 9

British Airways flights from Belfast City Airport to State of Washington

Our best British Airways deals on Belfast City Airport to State of Washington flight tickets
British Airways
Feb 13
BHD11:30 amBelfast City
13h 25m
1 stop
SEA4:55 pmSeattle/Tacoma Intl
Feb 17
SEA6:50 pmSeattle/Tacoma Intl
15h 50m
1 stop
BHD6:40 pmBelfast City
$741
Find similar
British Airways
Feb 13
BHD11:30 amBelfast City
19h 37m
2 stops
SEA11:07 pmSeattle/Tacoma Intl
Feb 17
SEA1:25 pmSeattle/Tacoma Intl
14h 05m
1 stop
BHD11:30 amBelfast City
$747
Find similar

American Airlines flights from Belfast City Airport to State of Washington

Our best American Airlines deals on Belfast City Airport to State of Washington flight tickets
American Airlines
Mar 5
BHD9:05 amBelfast City
15h 50m
1 stop
SEA4:55 pmSeattle/Tacoma Intl
Mar 9
SEA7:50 pmSeattle/Tacoma Intl
15h 45m
1 stop
BHD6:35 pmBelfast City
$754
Find similar
American Airlines
Mar 5
BHD11:05 amBelfast City
13h 50m
1 stop
SEA4:55 pmSeattle/Tacoma Intl
Mar 9
SEA1:48 pmSeattle/Tacoma Intl
17h 27m
2 stops
BHD2:15 pmBelfast City
$757
Find similar
American Airlines
Mar 5
BHD6:35 amBelfast City
24h 32m
2 stops
SEA11:07 pmSeattle/Tacoma Intl
Mar 9
SEA1:48 pmSeattle/Tacoma Intl
17h 27m
2 stops
BHD2:15 pmBelfast City
$759
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Belfast City Airport to State of Washington 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 September 19, 2025.
Use the filters below to find and compare flights from Belfast City Airport to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Fri 2/13

6:45 am-5:00 pm

2 stops18h 15m

Seattle/Tacoma Intl

Tue 2/17

2:35 pm-4:45 pm

2 stops18h 10m

$723

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Fri 2/13

11:30 am-4:55 pm

1 stop13h 25m

Seattle/Tacoma Intl

Tue 2/17

6:50 pm-6:40 pm

1 stop15h 50m

$741

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Fri 2/13

11:30 am-11:07 pm

2 stops19h 37m

Seattle/Tacoma Intl

Tue 2/17

1:25 pm-11:30 am

1 stop14h 05m

$747

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 3/5

9:05 am-4:55 pm

1 stop15h 50m

Seattle/Tacoma Intl

Mon 3/9

7:50 pm-6:35 pm

1 stop15h 45m

$754

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 3/5

11:05 am-4:55 pm

1 stop13h 50m

Seattle/Tacoma Intl

Mon 3/9

1:48 pm-2:15 pm

2 stops17h 27m

$757

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 3/5

6:35 am-11:07 pm

2 stops24h 32m

Seattle/Tacoma Intl

Mon 3/9

1:48 pm-2:15 pm

2 stops17h 27m

$759

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 3/5

6:35 am-11:07 pm

2 stops24h 32m

Seattle/Tacoma Intl

Mon 3/9

1:48 pm-2:15 pm

2 stops17h 27m

$762

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Washington from

How to get the cheapest flight ticket from Belfast City Airport to State of Washington

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 Belfast City Airport to State of Washington flights?

You could potentially save up to 8% on your flight if you consider stops on a Belfast City Airport to State of Washington flight.

Cheap Belfast City Airport to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Belfast City Airport to State of Washington

Direct flights

None
There are no direct flights from Belfast City Airport to State of Washington. There are no popular flight routes from Belfast City Airport to State of Washington.
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  • When did momondo last update prices for flights from Belfast City Airport to Washington?

    Prices for flights from Belfast City Airport to Washington are updated daily.

  • How old do you have to be to fly from Belfast City Airport to Washington?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Belfast City Airport to Washington.

  • What documentation or ID do you need to fly to Washington?

    The travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Belfast to Washington?

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 Belfast to Washington for you.

Can I find flights from Belfast to Washington with flexible booking policies on momondo?

All flight searches from Belfast to Washington on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Belfast to Washington?

Once you have performed a search for Belfast to Washington flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Washington from Belfast are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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