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.

$517 Cheap Flights from Belfast City Airport to State of Washington in 2026

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.

8:35 pm - 6:25 pm

BHD

SEA

29h 50m

1 stop

8:20 pm - 6:45 pm

SEA

BHD

14h 25m

1 stop

$950British Airways

Thu, Sep 24 - Sun, Sep 27

8:35 pm - 6:25 pm

BHD

SEA

29h 50m

1 stop

8:20 pm - 6:45 pm

SEA

BHD

14h 25m

1 stop

$951British Airways

Thu, Sep 24 - Sun, Sep 27

6:30 am - 9:36 pm

BHD

SEA

23h 06m

2 stops

6:15 am - 10:30 am

SEA

BHD

20h 15m

2 stops

$956British Airways

Thu, Sep 24 - Sun, Sep 27

8:35 pm - 9:36 pm

BHD

SEA

33h 01m

2 stops

6:15 am - 10:30 am

SEA

BHD

20h 15m

2 stops

$957British Airways

Thu, Sep 24 - Sun, Sep 27

4:35 pm - 11:35 am

BHD

SEA

27h 00m

1 stop

1:30 pm - 5:35 pm

SEA

BHD

20h 05m

1 stop

$990American Airlines

Thu, Aug 6 - Tue, Aug 11

6:30 am - 11:35 am

BHD

SEA

13h 05m

1 stop

1:30 pm - 10:45 am

SEA

BHD

13h 15m

1 stop

$1,021Multiple Airlines

Thu, Aug 6 - Tue, Aug 11

6:30 am - 11:35 pm

BHD

SEA

25h 05m

2 stops

8:20 pm - 7:40 pm

SEA

BHD

15h 20m

1 stop

$1,027Multiple Airlines

Thu, Aug 6 - Tue, Aug 11

6:30 am - 12:50 am

BHD

SEA

26h 20m

2 stops

1:24 pm - 5:35 pm

SEA

BHD

20h 11m

2 stops

$1,119British Airways

Thu, Aug 6 - Tue, Aug 11

7:00 am - 5:55 pm

BHD

SEA

18h 55m

2 stops

5:50 am - 12:15 pm

SEA

BHD

22h 25m

3 stops

$1,546Multiple Airlines

Thu, Aug 6 - Tue, Aug 11

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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

Sep 24

BHD8:35 pmBelfast City

29h 50m

1 stop

SEA6:25 pmSeattle/Tacoma Intl

Sep 27

SEA8:20 pmSeattle/Tacoma Intl

14h 25m

1 stop

BHD6:45 pmBelfast City

$950

British Airways

Sep 24

BHD8:35 pmBelfast City

29h 50m

1 stop

SEA6:25 pmSeattle/Tacoma Intl

Sep 27

SEA8:20 pmSeattle/Tacoma Intl

14h 25m

1 stop

BHD6:45 pmBelfast City

$951

British Airways

Sep 24

BHD6:30 amBelfast City

23h 06m

2 stops

SEA9:36 pmSeattle/Tacoma Intl

Sep 27

SEA6:15 amSeattle/Tacoma Intl

20h 15m

2 stops

BHD10:30 amBelfast City

$956

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 round-trip

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 9/24

8:35 pm-6:25 pm

1 stop29h 50m

Seattle/Tacoma Intl

Sun 9/27

8:20 pm-6:45 pm

1 stop14h 25m

$950

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 9/24

8:35 pm-6:25 pm

1 stop29h 50m

Seattle/Tacoma Intl

Sun 9/27

8:20 pm-6:45 pm

1 stop14h 25m

$951

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 9/24

6:30 am-9:36 pm

2 stops23h 06m

Seattle/Tacoma Intl

Sun 9/27

6:15 am-10:30 am

2 stops20h 15m

$956

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 9/24

8:35 pm-9:36 pm

2 stops33h 01m

Seattle/Tacoma Intl

Sun 9/27

6:15 am-10:30 am

2 stops20h 15m

$957

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 8/6

4:35 pm-11:35 am

1 stop27h 00m

Seattle/Tacoma Intl

Tue 8/11

1:30 pm-5:35 pm

1 stop20h 05m

$990

Quickest round-trip

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 8/6

6:30 am-11:35 am

1 stop13h 05m

Seattle/Tacoma Intl

Tue 8/11

1:30 pm-10:45 am

1 stop13h 15m

$1,021

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 8/6

6:30 am-11:35 pm

2 stops25h 05m

Seattle/Tacoma Intl

Tue 8/11

8:20 pm-7:40 pm

1 stop15h 20m

$1,027

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 8/6

6:30 am-12:50 am

2 stops26h 20m

Seattle/Tacoma Intl

Tue 8/11

1:24 pm-5:35 pm

2 stops20h 11m

$1,119

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Thu 8/6

7:00 am-5:55 pm

2 stops18h 55m

Seattle/Tacoma Intl

Tue 8/11

5:50 am-12:15 pm

3 stops22h 25m

$1,546

Cheapest one-way

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Sat 9/19

5:10 pm-4:00 pm

3 stops54h 50m

$517

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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?

British Airways and Aer Lingus are the most popular carriers 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	13h 30m
Direct flights	None

The fastest flight from Belfast City Airport to State of Washington takes 13h 30m

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?
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.