How do I get Price Alerts for flights from Belfast to State of Washington?

Confirm your travel details to search for the latest offers for flights from Belfast to State of Washington . While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

How can I save money on flights from Belfast to State of Washington with momondo?

With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

How does momondo find its flight prices?

momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

When did momondo last update prices for flights from Belfast to Washington?

Prices for flights from Belfast to Washington refresh daily.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Belfast to Washington.

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

The travel and health documents you'll need for your trip to Washington may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$753 Cheap Flights from Belfast to Washington in 2025

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Find the cheapest flights from Belfast to Washington

Round-trip

Cheap round-trip flights

6:40 am - 11:35 amBHD-SEA

12h 55m1 stop

1:30 pm - 1:30 pmSEA-BHD

16h 00m1 stop

$753British Airways

Find Deal

lun., sep. 15 - mié., sep. 24

6:40 am - 11:35 amBHD-SEA

12h 55m1 stop

1:30 pm - 1:30 pmSEA-BHD

16h 00m1 stop

$761British Airways

Find Deal

lun., sep. 15 - mié., sep. 24

6:40 am - 11:35 amBHD-SEA

12h 55m1 stop

1:30 pm - 11:55 amSEA-BHD

14h 25m1 stop

$764British Airways

Find Deal

lun., sep. 15 - mié., sep. 24

6:30 pm - 11:10 amBHD-SEA

24h 40m1 stop

10:11 am - 11:55 amSEA-BHD

17h 44m2 stops

$878British Airways

Find Deal

lun., sep. 15 - mié., sep. 24

1:50 pm - 8:09 pmBHD-SEA

38h 19m2 stops

11:05 pm - 11:10 amSEA-BHD

28h 05m2 stops

$884Finnair

Find Deal

lun., sep. 15 - mié., sep. 24

1:50 pm - 8:09 pmBHD-SEA

38h 19m2 stops

1:30 pm - 1:30 pmSEA-BHD

16h 00m1 stop

$888Finnair

Find Deal

lun., sep. 15 - mié., sep. 24

5:55 pm - 5:50 pmBHD-SEA

31h 55m2 stops

7:35 pm - 7:55 pmSEA-BHD

16h 20m2 stops

$892Aer Lingus

Find Deal

lun., sep. 15 - mié., sep. 24

6:40 am - 11:35 amBHD-SEA

12h 55m1 stop

7:48 am - 11:55 amSEA-BHD

20h 07m2 stops

$983

Find Deal

lun., sep. 15 - mié., sep. 24

6:35 am - 11:10 amBHD-SEA

12h 35m1 stop

1:30 pm - 1:30 pmSEA-BHD

16h 00m1 stop

$3,862British Airways

Find Deal

mar., oct. 14 - mié., oct. 22

8:20 pm - 9:45 pmBHD-SEA

33h 25m2 stops

7:30 am - 12:40 pmSEA-BHD

21h 10m2 stops

$3,864

Find Deal

mar., oct. 14 - mié., oct. 22

British Airways flights from Belfast to State of Washington

Our best British Airways deals on Belfast to State of Washington flight tickets

British Airways

Sep 15

BHD6:40 amBelfast City

12h 55m

1 stop

SEA11:35 amSeattle/Tacoma Intl

Sep 24

SEA1:30 pmSeattle/Tacoma Intl

16h 00m

1 stop

BHD1:30 pmBelfast City

$753

Find similar

British Airways

Sep 15

BHD6:40 amBelfast City

12h 55m

1 stop

SEA11:35 amSeattle/Tacoma Intl

Sep 24

SEA1:30 pmSeattle/Tacoma Intl

16h 00m

1 stop

BHD1:30 pmBelfast City

$761

Find similar

British Airways

Sep 15

BHD6:40 amBelfast City

12h 55m

1 stop

SEA11:35 amSeattle/Tacoma Intl

Sep 24

SEA1:30 pmSeattle/Tacoma Intl

14h 25m

1 stop

BHD11:55 amBelfast City

$764

Find similar

Finnair flights from Belfast to State of Washington

Our best Finnair deals on Belfast to State of Washington flight tickets

Finnair

Sep 15

BHD1:50 pmBelfast City

38h 19m

2 stops

SEA8:09 pmSeattle/Tacoma Intl

Sep 24

SEA11:05 pmSeattle/Tacoma Intl

28h 05m

2 stops

BHD11:10 amBelfast City

$884

Find similar

Finnair

Sep 15

BHD1:50 pmBelfast City

38h 19m

2 stops

SEA8:09 pmSeattle/Tacoma Intl

Sep 24

SEA1:30 pmSeattle/Tacoma Intl

16h 00m

1 stop

BHD1:30 pmBelfast City

$888

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

lun. 9/15

6:40 am-11:35 am

1 stop12h 55m

Seattle/Tacoma Intl

mié. 9/24

1:30 pm-1:30 pm

1 stop16h 00m

$753

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

lun. 9/15

6:40 am-11:35 am

1 stop12h 55m

Seattle/Tacoma Intl

mié. 9/24

1:30 pm-1:30 pm

1 stop16h 00m

$761

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

lun. 9/15

6:40 am-11:35 am

1 stop12h 55m

Seattle/Tacoma Intl

mié. 9/24

1:30 pm-11:55 am

1 stop14h 25m

$764

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

lun. 9/15

6:30 pm-11:10 am

1 stop24h 40m

Seattle/Tacoma Intl

mié. 9/24

10:11 am-11:55 am

2 stops17h 44m

$878

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

lun. 9/15

1:50 pm-8:09 pm

2 stops38h 19m

Seattle/Tacoma Intl

mié. 9/24

11:05 pm-11:10 am

2 stops28h 05m

$884

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

lun. 9/15

1:50 pm-8:09 pm

2 stops38h 19m

Seattle/Tacoma Intl

mié. 9/24

1:30 pm-1:30 pm

1 stop16h 00m

$888

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

lun. 9/15

5:55 pm-5:50 pm

2 stops31h 55m

Seattle/Tacoma Intl

mié. 9/24

7:35 pm-7:55 pm

2 stops16h 20m

$892

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

lun. 9/15

6:40 am-11:35 am

1 stop12h 55m

Seattle/Tacoma Intl

mié. 9/24

7:48 am-11:55 am

2 stops20h 07m

$983

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

mar. 10/14

6:35 am-11:10 am

1 stop12h 35m

Seattle/Tacoma Intl

mié. 10/22

1:30 pm-1:30 pm

1 stop16h 00m

$3,862

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

mar. 10/14

8:20 pm-9:45 pm

2 stops33h 25m

Seattle/Tacoma Intl

mié. 10/22

7:30 am-12:40 pm

2 stops21h 10m

$3,864

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Belfast to State of Washington flight deals and tips

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

Direct flights	None

There are no direct flights from Belfast to State of Washington. There are no popular flight routes from Belfast to State of Washington.

Search flight deals

When did momondo last update prices for flights from Belfast to Washington?
Prices for flights from Belfast to Washington refresh daily.
How old do you have to be to fly from Belfast to Washington?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Belfast to Washington.
What documentation or ID do you need to fly to Washington?
The travel and health documents you'll need for your trip to Washington may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

How do I get Price Alerts for flights from Belfast to State of Washington?
Confirm your travel details to search for the latest offers for flights from Belfast to State of Washington. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.
How can I save money on flights from Belfast to State of Washington with momondo?
With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.
How does momondo find its flight prices?
momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Belfast to Washington. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Washington from Belfast on momondo can be compared and filtered by various policies on offer, including flexible booking.

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 simply researching potential flights to Washington, momondo offers a useful price alert feature which will track prices for flights to Washington from Belfast and alert you when they change.