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Cheap flights from Northern Ireland to Seattle from £917

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — SEA
11 Sep — 18 Sep1
1 adult
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Cheap Northern Ireland to Seattle flights in September & October 2024

Find cheap flight options from Northern Ireland to Seattle specifically for the months of September and October 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 1,000,759 searches. Prices were last updated on 6 September 2024.
Fri 6/906:35BHD - SEA
1 stop19h 10mBritish Airways
Tue 24/913:30SEA - BHD
1 stop15h 25mBritish Airways
Deal found 5/9£917
Fri 6/906:35BHD - SEA
1 stop13h 00mAmerican Airlines
Tue 24/919:40SEA - BHD
1 stop13h 45mAmerican Airlines
Deal found 5/9£919
Fri 6/911:50BHD - SEA
2 stops19h 31mBritish Airways
Tue 24/919:40SEA - BHD
1 stop13h 45mBritish Airways
Deal found 5/9£921
Fri 6/906:35BHD - SEA
2 stops20h 56mMultiple Airlines
Tue 24/919:40SEA - BHD
1 stop13h 45mMultiple Airlines
Deal found 5/9£1,035
Fri 6/906:35BHD - SEA
1 stop13h 00mAmerican Airlines
Tue 24/918:45SEA - BHD
2 stops16h 10mAmerican Airlines
Deal found 5/9£1,053
Fri 6/906:35BHD - SEA
1 stop13h 00mAmerican Airlines
Tue 24/918:45SEA - BHD
2 stops16h 10mAmerican Airlines
Deal found 5/9£1,056
Fri 6/917:20BHD - SEA
1 stop31h 30mKLM
Tue 24/918:10SEA - BHD
1 stop14h 40mKLM
Deal found 6/9£1,079
Fri 6/917:20BHD - SEA
2 stops29h 10mKLM
Tue 24/918:10SEA - BHD
1 stop14h 40mKLM
Deal found 6/9£1,098
Fri 6/917:20BHD - SEA
2 stops29h 10mKLM
Tue 24/913:35SEA - BHD
2 stops19h 15mKLM
Deal found 5/9£1,111

Northern Ireland to Seattle 2024 flight deals

Discover exclusive flight deals for travel between Northern Ireland and Seattle in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 1,000,759 searches. Data last updated 6 September 2024.
Fri 6/906:35BHD - SEA
1 stop19h 10mBritish Airways
Tue 24/913:30SEA - BHD
1 stop15h 25mBritish Airways
Deal found 5/9£917
Fri 6/906:35BHD - SEA
1 stop13h 00mAmerican Airlines
Tue 24/919:40SEA - BHD
1 stop13h 45mAmerican Airlines
Deal found 5/9£919
Fri 6/911:50BHD - SEA
2 stops19h 31mBritish Airways
Tue 24/919:40SEA - BHD
1 stop13h 45mBritish Airways
Deal found 5/9£921
Fri 6/906:35BHD - SEA
2 stops20h 56mMultiple Airlines
Tue 24/919:40SEA - BHD
1 stop13h 45mMultiple Airlines
Deal found 5/9£1,035
Fri 6/906:35BHD - SEA
1 stop13h 00mAmerican Airlines
Tue 24/918:45SEA - BHD
2 stops16h 10mAmerican Airlines
Deal found 5/9£1,053
Fri 6/906:35BHD - SEA
1 stop13h 00mAmerican Airlines
Tue 24/918:45SEA - BHD
2 stops16h 10mAmerican Airlines
Deal found 5/9£1,056
Fri 6/917:20BHD - SEA
1 stop31h 30mKLM
Tue 24/918:10SEA - BHD
1 stop14h 40mKLM
Deal found 6/9£1,079
Fri 6/917:20BHD - SEA
2 stops29h 10mKLM
Tue 24/918:10SEA - BHD
1 stop14h 40mKLM
Deal found 6/9£1,098
Fri 6/917:20BHD - SEA
2 stops29h 10mKLM
Tue 24/913:35SEA - BHD
2 stops19h 15mKLM
Deal found 5/9£1,111

Travel insights for flights from Northern Ireland to Seattle

Get recent, data-driven insights about flights from Northern Ireland to Seattle including ideal travel times, pricing trends, and more.

What is the cheapest time of day to fly from NIR to SEA?

Find hourly flight availability from Northern Ireland to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 6 September 2024.

It’s optimal to fly from Northern Ireland to Seattle at midday. By choosing this option you can save up to 44% on the cost of your flight, compared to a flight in the afternoon.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, 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 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

Related info for your journey

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

  • What airport do you fly into for flights to Seattle from Northern Ireland?

    Most people fly into Seattle/Tacoma Intl (SEA) if they book a flight to Seattle from Northern Ireland. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

  • What does BFS to SEA mean?

    Great question - BFS to SEA just means Belfast Intl Airport to Seattle/Tacoma Intl Airport. Now you’ll know what these unique codes when you look for flights! This flight route has multiple associated airports, so we think it might be helpful to learn the name and codes of them as well. They are Belfast City Airport (BHD), Londonderry Eglinton Airport (LDY).

  • Can I find deals for flights from Northern Ireland to Seattle that include extra baggage allowance?

    The amount of baggage you can bring on your Northern Ireland to Seattle flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Northern Ireland to Seattle with specific airlines?

    Yes, Cheapflights allows you to browse and filter Northern Ireland to Seattle flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Northern Ireland to Seattle that include hotel bookings?

    Yes. In addition to deals on Northern Ireland to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Northern Ireland to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Northern Ireland to Seattle.

  • Can I find deals for business class flights from Northern Ireland to Seattle?

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

  • Can I find deals for flights from Northern Ireland to Seattle that allow pets onboard?

    Many airlines flying from Northern Ireland to Seattle offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Northern Ireland to Seattle?

    Yes, you can often find last-minute deals on Northern Ireland to Seattle flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Northern Ireland to Seattle flight deals updated?

    The Northern Ireland to Seattle flight deals you see on this page were last updated on 6/9.

See more FAQs

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Search flights from Northern Ireland to Seattle by cabin class

Find flights from Northern Ireland to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Northern Ireland to Seattle?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Northern Ireland to Seattle. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to Seattle?

Cheapflights helps you find that perfect flight to Seattle from Northern Ireland by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Northern Ireland to Seattle with no change fees?

Yes! Cheapflights helps users easily find flights from Northern Ireland to Seattle with no change fees.

Can Cheapflights notify me if prices for flights from Northern Ireland to Seattle become cheaper?

Yes! Start tracking prices for Northern Ireland to Seattle flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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