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Cheap flights from Northern Ireland to Seattle (SEA) from $690

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 11/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
BFS — SEA
May 18 — May 251
From?
To?
Sat 5/18
Sat 5/25
1 adult, Economy
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When is the cheapest time to fly from Northern Ireland to Seattle (NIR - SEA)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Northern Ireland to Seattle as you normally would.

Cheap Delta flights from Northern Ireland to Seattle

Explore cheap flight options specifically provided by Delta for the route between Northern Ireland and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,633,403 searches. Data last updated May 13, 2024.
Find some of the cheapest Delta flights traveling from Northern Ireland to Seattle. Deals update often to give you more flight options matching your criteria
Mon 11/45:20 pmBHD - SEA
2 stops30h 56mDelta
Tue 11/199:40 amSEA - BHD
2 stops23h 10mDelta
Deal found 5/12$724
Sat 6/155:20 pmBHD - SEA
1 stop25h 00mDelta
Sat 8/1711:50 amSEA - BHD
2 stops21h 00mDelta
Deal found 5/13$1,041
Sat 6/155:20 pmBHD - SEA
2 stops30h 30mDelta
Sat 8/1711:50 amSEA - BHD
2 stops21h 00mDelta
Deal found 5/12$1,142

Cheap American Airlines flights from Northern Ireland to Seattle

Explore cheap flight options specifically provided by American Airlines for the route between Northern Ireland and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,633,403 searches. Data last updated May 13, 2024.
Have a look at some of the cheapest available American Airlines flights departing from Northern Ireland and landing in Seattle. Check back soon if you're not seeing flights that suit your needs.
Wed 9/256:50 amBHD - SEA
1 stop18h 55mAmerican Airlines
Sun 9/2911:50 pmSEA - BHD
2 stops25h 05mAmerican Airlines
Deal found 5/11$733
Sun 11/33:05 pmBHD - SEA
1 stop33h 40mAmerican Airlines
Tue 11/191:39 pmSEA - BHD
2 stops16h 46mAmerican Airlines
Deal found 5/12$736
Wed 9/256:50 amBHD - SEA
2 stops22h 21mAmerican Airlines
Sun 9/2911:50 pmSEA - BHD
2 stops25h 05mAmerican Airlines
Deal found 5/11$739
Wed 11/66:45 amBHD - SEA
2 stops22h 58mAmerican Airlines
Thu 11/211:35 pmSEA - BHD
1 stop16h 25mAmerican Airlines
Deal found 5/12$745
Mon 11/46:45 amBHD - SEA
2 stops21h 43mAmerican Airlines
Mon 11/181:39 pmSEA - BHD
2 stops16h 41mAmerican Airlines
Deal found 5/12$746
Wed 11/69:10 amBHD - SEA
2 stops20h 33mAmerican Airlines
Thu 11/215:27 pmSEA - BHD
2 stops18h 03mAmerican Airlines
Deal found 5/12$758
Wed 9/256:50 amBHD - SEA
1 stop18h 55mAmerican Airlines
Sun 9/297:40 pmSEA - BHD
1 stop15h 00mAmerican Airlines
Deal found 5/11$771
Sat 6/156:50 amBHD - SEA
2 stops22h 34mAmerican Airlines
Sat 8/171:26 pmSEA - BHD
2 stops17h 39mAmerican Airlines
Deal found 5/12$1,079

Cheap Northern Ireland to Seattle flights in May & June 2024

Find cheap flight options from Northern Ireland to Seattle specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,633,403 searches. Prices were last updated on May 13, 2024.
The lowest fares we've come across on flights traveling from Northern Ireland to Seattle in May and June 2024. Check back soon for alternative fares.
Sat 6/155:20 pmBHD - SEA
1 stop25h 00mMultiple Airlines
Sat 8/171:30 pmSEA - BHD
1 stop19h 20mMultiple Airlines
Deal found 5/12$1,015
Sat 6/155:20 pmBHD - SEA
1 stop25h 00mKLM
Sat 8/173:15 pmSEA - BHD
2 stops17h 35mKLM
Deal found 5/13$1,040
Sat 6/155:20 pmBHD - SEA
1 stop25h 00mDelta
Sat 8/1711:50 amSEA - BHD
2 stops21h 00mDelta
Deal found 5/13$1,041
Sat 6/156:50 amBHD - SEA
2 stops22h 34mAmerican Airlines
Sat 8/171:26 pmSEA - BHD
2 stops17h 39mAmerican Airlines
Deal found 5/12$1,079
Sat 6/156:55 pmBHD - SEA
2 stops32h 53mBritish Airways
Sat 8/171:26 pmSEA - BHD
2 stops19h 24mBritish Airways
Deal found 5/13$1,101
Sat 6/155:20 pmBHD - SEA
2 stops32h 15mKLM
Sat 8/173:15 pmSEA - BHD
2 stops17h 35mKLM
Deal found 5/13$1,121
Sat 6/155:20 pmBHD - SEA
2 stops30h 30mDelta
Sat 8/1711:50 amSEA - BHD
2 stops21h 00mDelta
Deal found 5/12$1,142
Sat 6/157:10 amBFS - SEA
2 stops21h 11mMultiple Airlines
Sat 8/171:50 pmSEA - BFS
2 stops35h 40mMultiple Airlines
Deal found 5/13$1,202
Sat 6/157:10 amBFS - SEA
2 stops21h 11mMultiple Airlines
Sat 8/171:50 pmSEA - BFS
2 stops35h 40mMultiple Airlines
Deal found 5/12$1,601

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 2,633,403 searches. Data last updated May 13, 2024.
The lowest fares we've come across on flights traveling from Northern Ireland to Seattle in May and June 2024. Check back soon for alternative fares.
Mon 11/45:20 pmBHD - SEA
1 stop24h 55mMultiple Airlines
Thu 11/212:35 pmSEA - BHD
1 stop18h 15mMultiple Airlines
Deal found 5/12$690
Mon 11/45:20 pmBHD - SEA
2 stops30h 56mMultiple Airlines
Wed 11/202:35 pmSEA - BHD
1 stop18h 15mMultiple Airlines
Deal found 5/12$696
Mon 11/45:20 pmBHD - SEA
2 stops30h 56mDelta
Tue 11/199:40 amSEA - BHD
2 stops23h 10mDelta
Deal found 5/12$724
Wed 11/65:20 pmBHD - SEA
1 stop24h 55mMultiple Airlines
Wed 11/202:35 pmSEA - BHD
1 stop18h 15mMultiple Airlines
Deal found 5/12$728
Mon 11/47:30 pmBHD - SEA
1 stop23h 55mMultiple Airlines
Mon 11/186:45 pmSEA - BHD
1 stop13h 25mMultiple Airlines
Deal found 5/12$731
Wed 9/256:50 amBHD - SEA
1 stop18h 55mAmerican Airlines
Sun 9/2911:50 pmSEA - BHD
2 stops25h 05mAmerican Airlines
Deal found 5/11$733
Sun 11/33:05 pmBHD - SEA
1 stop33h 40mAmerican Airlines
Tue 11/191:39 pmSEA - BHD
2 stops16h 46mAmerican Airlines
Deal found 5/12$736
Wed 9/256:50 amBHD - SEA
2 stops22h 21mAmerican Airlines
Sun 9/2911:50 pmSEA - BHD
2 stops25h 05mAmerican Airlines
Deal found 5/11$739
Mon 11/45:20 pmBHD - SEA
2 stops30h 56mKLM
Wed 11/201:35 pmSEA - BHD
2 stops19h 15mKLM
Deal found 5/12$740

Find flights from Northern Ireland to Seattle within your budget

Customize your flight search to find flights from Northern Ireland to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,633,403 searches. Data last updated May 13, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$690 - $768

Route

Depart

Return

Price

Belfast CitySeattle/Tacoma Intl

BHD - SEA

BHDSEA

Belfast City

Mon 11/4

1 stop24h 55m

Seattle/Tacoma Intl

Thu 11/21

1 stop18h 15m

$690

Belfast CitySeattle/Tacoma Intl

BHD - SEA

BHDSEA

Belfast City

Mon 11/4

2 stops30h 56m

Seattle/Tacoma Intl

Wed 11/20

1 stop18h 15m

$696

Belfast CitySeattle/Tacoma Intl

BHD - SEA

BHDSEA

Belfast City

Mon 11/4

2 stops30h 56m

Seattle/Tacoma Intl

Tue 11/19

2 stops23h 10m

$724

Belfast CitySeattle/Tacoma Intl

BHD - SEA

BHDSEA

Belfast City

Wed 11/6

1 stop24h 55m

Seattle/Tacoma Intl

Wed 11/20

1 stop18h 15m

$728

Belfast CitySeattle/Tacoma Intl

BHD - SEA

BHDSEA

Belfast City

Wed 9/25

1 stop18h 55m

Seattle/Tacoma Intl

Sun 9/29

2 stops25h 05m

$733

Belfast CitySeattle/Tacoma Intl

BHD - SEA

BHDSEA

Belfast City

Sun 11/3

1 stop33h 40m

Seattle/Tacoma Intl

Tue 11/19

2 stops16h 46m

$736

Belfast CitySeattle/Tacoma Intl

BHD - SEA

BHDSEA

Belfast City

Mon 11/4

2 stops30h 56m

Seattle/Tacoma Intl

Wed 11/20

2 stops19h 15m

$740

Belfast CitySeattle/Tacoma Intl

BHD - SEA

BHDSEA

Belfast City

Tue 11/5

2 stops29h 22m

Seattle/Tacoma Intl

Tue 11/19

2 stops20h 10m

$742

Belfast CitySeattle/Tacoma Intl

BHD - SEA

BHDSEA

Belfast City

Sun 11/3

1 stop15h 05m

Seattle/Tacoma Intl

Tue 11/19

1 stop13h 05m

$768

Flights are sorted by cheapest first

Deals found on 5/12

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated May 13, 2024.
Read reviews from past customers who have flown Delta, American Airlines and KLM from Northern Ireland to Seattle. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,736 reviews
Check prices

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

8.0

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta
8.0
Very good
10,736 reviews
Delta
8.0
Very good
10,736 reviews
Check prices

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

8.0

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

KLM
7.9
Good
1,574 reviews
Delta
8.0
Very good
10,736 reviews
Check prices

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

8.0

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

American Airlines
7.3
Good
14,575 reviews
Delta
8.0
Very good
10,736 reviews
Check prices

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

8.0

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

British Airways
6.8
Okay
6,841 reviews
Delta
8.0
Very good
10,736 reviews
Check prices

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

8.0

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

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?

    If you book a flight to Seattle from Northern Ireland, you will be flying to Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle.

  • Can I find flights from Northern Ireland to Seattle for under $700 on Cheapflights?

    Yes, there are multiple flights from Northern Ireland to Seattle for under $700. The cheapest flight booked recently is on Multiple Airlines for just $690, but on average you can expect to pay $752.

  • What does BFS to SEA mean?

    This is defined as Belfast Intl Airport (BFS) and Seattle/Tacoma Intl Airport (SEA). Codes like Seattle/Tacoma Intl Airport are often used to just call airports uniquely. Belfast City Airport (BHD), Londonderry Eglinton Airport (LDY) are other airports near this flight route and their unique identifiers/IATA codes.

  • 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 vacation 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 5/12.

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

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Seattle from Northern Ireland today with Cheapflights!

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Northern Ireland to Seattle for you. Better yet — we are completely free to use.

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

Need flexible booking options for your flight to Seattle from Northern Ireland? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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