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Cheap flights from Belfast City Airport to Washington from $817

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 4/21. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
6:35 am - 11:35 amBHD-SEA
13h 00m1 stop
British Airways Logo
1:35 pm - 3:40 pmSEA-BHD
18h 05m1 stop
$817British Airways
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Tue, Apr 21 - Mon, May 4
British Airways Logo
9:35 am - 9:12 pmBHD-SEA
19h 37m2 stops
British Airways Logo
1:35 pm - 7:35 pmSEA-BHD
22h 00m1 stop
$833British Airways
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Tue, Apr 21 - Mon, May 4
Multiple Airlines Logo
6:30 am - 4:13 pmBHD-SEA
17h 43m2 stops
Multiple Airlines Logo
5:35 pm - 4:55 pmSEA-BHD
15h 20m1 stop
$841Multiple Airlines
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Wed, Apr 22 - Mon, May 4
American Airlines Logo
3:05 pm - 11:30 amBHD-SEA
28h 25m1 stop
American Airlines Logo
3:35 pm - 10:30 amSEA-BHD
35h 55m2 stops
$854American Airlines
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Thu, Mar 5 - Mon, Mar 9
American Airlines Logo
11:05 am - 11:30 amBHD-SEA
32h 25m1 stop
American Airlines Logo
7:00 am - 10:40 amSEA-BHD
20h 40m2 stops
$856American Airlines
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Thu, Mar 5 - Mon, Mar 9
American Airlines Logo
10:40 am - 11:30 amBHD-SEA
32h 50m1 stop
American Airlines Logo
7:50 pm - 6:35 pmSEA-BHD
15h 45m1 stop
$860American Airlines
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Thu, Mar 5 - Mon, Mar 9
KLM Logo
6:30 am - 2:45 pmBHD-SEA
16h 15m2 stops
KLM Logo
8:25 pm - 9:20 pmSEA-BHD
16h 55m2 stops
$909KLM
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Wed, Apr 22 - Mon, May 4
Multiple Airlines Logo
2:20 pm - 4:59 pmBHD-SEA
34h 39m2 stops
Multiple Airlines Logo
1:45 pm - 8:25 pmSEA-BHD
22h 40m3 stops
$1,035Multiple Airlines
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Tue, Apr 21 - Mon, May 4
Virgin Atlantic Logo
6:30 am - 3:50 pmBHD-SEA
17h 20m1 stop
Virgin Atlantic Logo
2:05 pm - 4:55 pmSEA-BHD
18h 50m1 stop
$1,453Virgin Atlantic
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Wed, Apr 22 - Mon, May 4
Virgin Atlantic Logo
6:30 am - 10:25 pmBHD-SEA
23h 55m2 stops
Virgin Atlantic Logo
5:35 pm - 4:55 pmSEA-BHD
15h 20m1 stop
$1,526Virgin Atlantic
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Wed, Apr 22 - Mon, May 4

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
BHD3:05 pmBelfast City
28h 25m
1 stop
SEA11:30 amSeattle/Tacoma Intl
Mar 9
SEA3:35 pmSeattle/Tacoma Intl
35h 55m
2 stops
BHD10:30 amBelfast City
$854
Find similar
American Airlines
Mar 5
BHD11:05 amBelfast City
32h 25m
1 stop
SEA11:30 amSeattle/Tacoma Intl
Mar 9
SEA7:00 amSeattle/Tacoma Intl
20h 40m
2 stops
BHD10:40 amBelfast City
$856
Find similar
American Airlines
Mar 5
BHD10:40 amBelfast City
32h 50m
1 stop
SEA11:30 amSeattle/Tacoma Intl
Mar 9
SEA7:50 pmSeattle/Tacoma Intl
15h 45m
1 stop
BHD6:35 pmBelfast City
$860
Find similar

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
Apr 21
BHD6:35 amBelfast City
13h 00m
1 stop
SEA11:35 amSeattle/Tacoma Intl
May 4
SEA1:35 pmSeattle/Tacoma Intl
18h 05m
1 stop
BHD3:40 pmBelfast City
$817
Find similar
British Airways
Apr 21
BHD9:35 amBelfast City
19h 37m
2 stops
SEA9:12 pmSeattle/Tacoma Intl
May 4
SEA1:35 pmSeattle/Tacoma Intl
22h 00m
1 stop
BHD7:35 pmBelfast City
$833
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 November 6, 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

Tue 4/21

6:35 am-11:35 am

1 stop13h 00m

Seattle/Tacoma Intl

Mon 5/4

1:35 pm-3:40 pm

1 stop18h 05m

$817

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Tue 4/21

9:35 am-9:12 pm

2 stops19h 37m

Seattle/Tacoma Intl

Mon 5/4

1:35 pm-7:35 pm

1 stop22h 00m

$833

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Wed 4/22

6:30 am-4:13 pm

2 stops17h 43m

Seattle/Tacoma Intl

Mon 5/4

5:35 pm-4:55 pm

1 stop15h 20m

$841

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 3/5

3:05 pm-11:30 am

1 stop28h 25m

Seattle/Tacoma Intl

Mon 3/9

3:35 pm-10:30 am

2 stops35h 55m

$854

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 3/5

11:05 am-11:30 am

1 stop32h 25m

Seattle/Tacoma Intl

Mon 3/9

7:00 am-10:40 am

2 stops20h 40m

$856

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 3/5

10:40 am-11:30 am

1 stop32h 50m

Seattle/Tacoma Intl

Mon 3/9

7:50 pm-6:35 pm

1 stop15h 45m

$860

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Wed 4/22

6:30 am-2:45 pm

2 stops16h 15m

Seattle/Tacoma Intl

Mon 5/4

8:25 pm-9:20 pm

2 stops16h 55m

$909

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Tue 4/21

2:20 pm-4:59 pm

2 stops34h 39m

Seattle/Tacoma Intl

Mon 5/4

1:45 pm-8:25 pm

3 stops22h 40m

$1,035

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Wed 4/22

6:30 am-3:50 pm

1 stop17h 20m

Seattle/Tacoma Intl

Mon 5/4

2:05 pm-4:55 pm

1 stop18h 50m

$1,453

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Wed 4/22

6:30 am-10:25 pm

2 stops23h 55m

Seattle/Tacoma Intl

Mon 5/4

5:35 pm-4:55 pm

1 stop15h 20m

$1,526

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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