What is the cheapest month to book a flight from Belfast Intl Airport to State of Washington?

Currently, January is the cheapest month in which you can book a flight from Belfast Intl Airport to State of Washington (average of $238). Flying from Belfast Intl Airport to State of Washington in June is currently the most expensive (average of $389). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

In terms of precipitation, rainfall in State of Washington ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.

If weather is an important factor for your trip to State of Washington, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

What is the cheapest month to fly from Belfast Intl Airport to State of Washington?

May is one of the best times of the year to fly to State of Washington from Belfast Intl Airport. Prices for May average $804 per person but you can even find prices for as low as $585. The most expensive prices can be found in the month of November. Opting for a May flight can save you 35% on your journey compared to booking in November

What is the cheapest time of day to fly from BFS to WA?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Belfast Intl Airport to State of Washington as you normally would.

Can I find deals for flights from Belfast Intl to Washington that include hotel bookings?

Yes. In addition to deals on Belfast Intl to Washington flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Belfast Intl to Washington?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast Intl to Washington.

Can I find deals for business class flights from Belfast Intl to Washington?

Yes. Cheapflights offers flight deals from Belfast Intl to Washington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$803+ Flights from Belfast Intl Airport to Washington

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Cheap flight deals from Belfast Intl to Washington

Round-trip from	$803 (Trip.com)
Popular in	November
Cheapest in	May

From Belfast Intl to Washington

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Highest demand for flights based on searches. 17% potential increase in price ($172 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).

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Find flight deals from Belfast Intl to Washington

Cheapest flights from Belfast Intl to Washington
Explore the most affordable flight options available from Belfast Intl to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 30, 2025.

jue. 9/46:35 amBFS - SEA

2 stops22h 05mMultiple Airlines

mié. 9/107:00 pmSEA - BFS

2 stops20h 10mMultiple Airlines

Deal found 7/30

$803

Best flights from Belfast Intl to Washington
Discover carefully curated flight deals from Belfast Intl to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated julio 30, 2025.

jue. 9/46:35 amBFS - SEA

2 stops22h 05mMultiple Airlines

mié. 9/107:00 pmSEA - BFS

2 stops20h 10mMultiple Airlines

Deal found 7/30

$803

Last-minute flights from Belfast Intl to Washington
Discover last-minute flight deals from Belfast Intl to Washington. Data last updated julio 30, 2025 and is based on user searches.

sáb. 8/169:40 amBFS - SEA

2 stops19h 00mMultiple Airlines

dom. 8/244:00 pmSEA - BFS

2 stops23h 00mMultiple Airlines

Deal found 7/29

$1,513

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jue. 9/4

6:35 am-8:40 pm

2 stops22h 05m

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mié. 9/10

7:00 pm-11:10 pm

2 stops20h 10m

$803

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Deals found on 7/30

Best time to book a flight from Belfast Intl to Washington

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Related info for your journey

Can I find deals for flights from Belfast Intl to Washington that include hotel bookings?
Yes. In addition to deals on Belfast Intl to Washington flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Belfast Intl to Washington?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast Intl to Washington.
Can I find deals for business class flights from Belfast Intl to Washington?
Yes. Cheapflights offers flight deals from Belfast Intl to Washington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Belfast Intl Airport to State of Washington?
Currently, January is the cheapest month in which you can book a flight from Belfast Intl Airport to State of Washington (average of $238). Flying from Belfast Intl Airport to State of Washington in June is currently the most expensive (average of $389). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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$803+ Cheap flights from Belfast Intl (BFS) to Washington

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/4. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Belfast Intl to Washington with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

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Cheap flight deals from Belfast Intl to Washington

Keep the following information in mind while searching for Belfast Intl to Washington flight deals. Data was last updated julio 30, 2025.

Round-trip from

Popular in

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Find flight deals from Belfast Intl to Washington

Cheapest flights from Belfast Intl to WashingtonExplore the most affordable flight options available from Belfast Intl to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 30, 2025.

Explore the most affordable flight options available from Belfast Intl to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Belfast Intl Airport to Washington that are best for you.

Best time to book a flight from Belfast Intl to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Belfast Intl with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Belfast Intl Airport to Washington

Related info for your journey

Find useful and relevant information for your journey from Belfast Intl to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find deals for flights from Belfast Intl to Washington that include hotel bookings?

How can I find direct flights from Belfast Intl to Washington?

Can I find deals for business class flights from Belfast Intl to Washington?

What is the cheapest month to book a flight from Belfast Intl Airport to State of Washington?

Browse thousands of different options on Cheapflights for your next trip

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Cheapest flights from Belfast Intl to Washington
Explore the most affordable flight options available from Belfast Intl to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 30, 2025.