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?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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 required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

£387 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

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

20:35 - 18:25

BHD

SEA

29h 50m

1 stop

20:20 - 18:45

SEA

BHD

14h 25m

1 stop

£711British Airways

Thu, 24 Sep - Sun, 27 Sep

20:35 - 18:25

BHD

SEA

29h 50m

1 stop

20:20 - 18:45

SEA

BHD

14h 25m

1 stop

£711British Airways

Thu, 24 Sep - Sun, 27 Sep

06:30 - 21:36

BHD

SEA

23h 06m

2 stops

06:15 - 10:30

SEA

BHD

20h 15m

2 stops

£715British Airways

Thu, 24 Sep - Sun, 27 Sep

20:35 - 21:36

BHD

SEA

33h 01m

2 stops

06:15 - 10:30

SEA

BHD

20h 15m

2 stops

£716British Airways

Thu, 24 Sep - Sun, 27 Sep

15:50 - 21:35

BHD

SEA

37h 45m

2 stops

10:22 - 17:30

SEA

BHD

23h 08m

2 stops

£747American Airlines

Sun, 26 Jul - Mon, 3 Aug

17:30 - 11:33

BHD

SEA

26h 03m

1 stop

17:45 - 09:20

SEA

BHD

31h 35m

1 stop

£779KLM

Sun, 26 Jul - Mon, 3 Aug

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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

24 Sept

BHD20:35Belfast City

29h 50m

1 stop

SEA18:25Seattle/Tacoma Intl

27 Sept

SEA20:20Seattle/Tacoma Intl

14h 25m

1 stop

BHD18:45Belfast City

£711

British Airways

24 Sept

BHD20:35Belfast City

29h 50m

1 stop

SEA18:25Seattle/Tacoma Intl

27 Sept

SEA20:20Seattle/Tacoma Intl

14h 25m

1 stop

BHD18:45Belfast City

£711

British Airways

24 Sept

BHD06:30Belfast City

23h 06m

2 stops

SEA21:36Seattle/Tacoma Intl

27 Sept

SEA06:15Seattle/Tacoma Intl

20h 15m

2 stops

BHD10:30Belfast City

£715

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

Cheapest return flight

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 24/9

20:35-18:25

1 stop29h 50m

Seattle/Tacoma Intl

Sun 27/9

20:20-18:45

1 stop14h 25m

£711

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 24/9

20:35-18:25

1 stop29h 50m

Seattle/Tacoma Intl

Sun 27/9

20:20-18:45

1 stop14h 25m

£711

Fastest return journey

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 24/9

06:30-21:36

2 stops23h 06m

Seattle/Tacoma Intl

Sun 27/9

06:15-10:30

2 stops20h 15m

£715

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 24/9

20:35-21:36

2 stops33h 01m

Seattle/Tacoma Intl

Sun 27/9

06:15-10:30

2 stops20h 15m

£716

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Sun 26/7

15:50-21:35

2 stops37h 45m

Seattle/Tacoma Intl

Mon 3/8

10:22-17:30

2 stops23h 08m

£747

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Sun 26/7

17:30-11:33

1 stop26h 03m

Seattle/Tacoma Intl

Mon 3/8

17:45-09:20

1 stop31h 35m

£779

Cheapest one-way

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Sat 19/9

17:10-16:00

3 stops54h 50m

£387

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Sat 19/9

19:05-11:35

1 stop24h 30m

£456

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Sat 19/9

07:05-00:11

2 stops25h 06m

£459

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Mon 3/8

09:50-17:10

2 stops15h 20m

£639

Flights are sorted by cheapest return flights first.

Showing 1-10 of 15 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

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

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	31h 10m
Direct flights	None

The fastest flight from Belfast City Airport to State of Washington takes 31h 10m

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

Frequently asked questions about flying from Belfast City Airport 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?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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 required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

It is quick and easy to find Belfast to Washington 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 Washington that suits you.

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

Yes. momondo enables you to select and highlight flights to Washington from Belfast with this policy.

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

momondo helps you find the best flight between Belfast and Washington by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Belfast to Washington now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington and let you know when they change.