What is the cheapest airline that flies from Belfast City to Washington?

Aer Lingus is the most popular carrier operating from Belfast City to Washington

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.

$525 Cheap Flights from Belfast City Airport to State of Washington in 2026

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Find the cheapest flights from Belfast City Airport to Washington

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:35 am - 11:30 am

BHD

SEA

12h 55m

1 stop

7:21 am - 11:30 am

SEA

BHD

21h 09m

2 stops

$920British Airways

Sat, Mar 7 - Tue, Mar 10

6:35 am - 11:30 am

BHD

SEA

12h 55m

1 stop

7:21 am - 10:30 am

SEA

BHD

20h 09m

2 stops

$925British Airways

Sat, Mar 7 - Tue, Mar 10

9:15 am - 11:04 pm

BHD

SEA

21h 49m

2 stops

7:21 am - 10:30 am

SEA

BHD

20h 09m

2 stops

$926British Airways

Sat, Mar 7 - Tue, Mar 10

6:35 am - 11:04 pm

BHD

SEA

24h 29m

2 stops

7:21 am - 11:30 am

SEA

BHD

21h 09m

2 stops

$930British Airways

Sat, Mar 7 - Tue, Mar 10

6:35 am - 11:30 am

BHD

SEA

12h 55m

1 stop

2:25 pm - 10:30 am

SEA

BHD

13h 05m

1 stop

$937British Airways

Sat, Mar 7 - Tue, Mar 10

6:35 am - 11:30 am

BHD

SEA

12h 55m

1 stop

2:25 pm - 11:30 am

SEA

BHD

14h 05m

1 stop

$942British Airways

Sat, Mar 7 - Tue, Mar 10

6:35 am - 11:04 pm

BHD

SEA

24h 29m

2 stops

1:37 pm - 4:45 pm

SEA

BHD

20h 08m

2 stops

$943British Airways

Sat, Mar 7 - Tue, Mar 10

6:45 am - 11:30 am

BHD

SEA

12h 45m

1 stop

2:25 pm - 11:30 am

SEA

BHD

14h 05m

1 stop

$947British Airways

Fri, Mar 6 - Tue, Mar 10

9:05 am - 12:24 am

BHD

SEA

22h 19m

2 stops

10:08 pm - 10:20 am

SEA

BHD

29h 12m

2 stops

$995British Airways

Thu, Mar 19 - Sat, Mar 21

10:40 am - 5:55 pm

BHD

SEA

14h 15m

1 stop

11:59 pm - 10:20 am

SEA

BHD

27h 21m

2 stops

$1,055British Airways

Thu, Mar 19 - Sat, Mar 21

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

Mar 7

BHD6:35 amBelfast City

12h 55m

1 stop

SEA11:30 amSeattle/Tacoma Intl

Mar 10

SEA7:21 amSeattle/Tacoma Intl

21h 09m

2 stops

BHD11:30 amBelfast City

$920

British Airways

Mar 7

BHD6:35 amBelfast City

12h 55m

1 stop

SEA11:30 amSeattle/Tacoma Intl

Mar 10

SEA7:21 amSeattle/Tacoma Intl

20h 09m

2 stops

BHD10:30 amBelfast City

$925

British Airways

Mar 7

BHD9:15 amBelfast City

21h 49m

2 stops

SEA11:04 pmSeattle/Tacoma Intl

Mar 10

SEA7:21 amSeattle/Tacoma Intl

20h 09m

2 stops

BHD10:30 amBelfast City

$926

momondo Fare Finder

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

Sat 3/7

6:35 am-11:30 am

1 stop12h 55m

Seattle/Tacoma Intl

Tue 3/10

7:21 am-11:30 am

2 stops21h 09m

$920

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Sat 3/7

6:35 am-11:30 am

1 stop12h 55m

Seattle/Tacoma Intl

Tue 3/10

7:21 am-10:30 am

2 stops20h 09m

$925

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Sat 3/7

9:15 am-11:04 pm

2 stops21h 49m

Seattle/Tacoma Intl

Tue 3/10

7:21 am-10:30 am

2 stops20h 09m

$926

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Sat 3/7

6:35 am-11:04 pm

2 stops24h 29m

Seattle/Tacoma Intl

Tue 3/10

7:21 am-11:30 am

2 stops21h 09m

$930

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Sat 3/7

6:35 am-11:30 am

1 stop12h 55m

Seattle/Tacoma Intl

Tue 3/10

2:25 pm-10:30 am

1 stop13h 05m

$937

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Sat 3/7

6:35 am-11:30 am

1 stop12h 55m

Seattle/Tacoma Intl

Tue 3/10

2:25 pm-11:30 am

1 stop14h 05m

$942

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Sat 3/7

6:35 am-11:04 pm

2 stops24h 29m

Seattle/Tacoma Intl

Tue 3/10

1:37 pm-4:45 pm

2 stops20h 08m

$943

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Fri 3/6

6:45 am-11:30 am

1 stop12h 45m

Seattle/Tacoma Intl

Tue 3/10

2:25 pm-11:30 am

1 stop14h 05m

$947

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 3/19

9:05 am-12:24 am

2 stops22h 19m

Seattle/Tacoma Intl

Sat 3/21

10:08 pm-10:20 am

2 stops29h 12m

$995

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 3/19

10:40 am-5:55 pm

1 stop14h 15m

Seattle/Tacoma Intl

Sat 3/21

11:59 pm-10:20 am

2 stops27h 21m

$1,055

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Can stopping save me money on Belfast City Airport to State of Washington flights?

You could potentially save up to 16% 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

Fastest flight time	12h 55m
Direct flights	None

The fastest flight from Belfast City Airport to State of Washington takes 12h 55m

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.

Search flight deals

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.