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Cheap flights from Seattle to Belfast City Airport from £601

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BHD
23 Dec — 30 Dec1
1 adult

Cheap flight deals from Seattle to Belfast City

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Belfast City (BHD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 December 2024.

Round-trip from

£601

Popular in

June

Cheapest in

November

Average price

£913
Finnair
  • Finnair
  • 14/1-21/1
  • 2 total stops
  • 26h 40m total
  • Seattle to Belfast
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High demand for flights, 23% potential price rise
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Best time to find cheap flights, 6% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from Seattle to Belfast City

Best flights from Seattle to Belfast City
Discover carefully curated flight deals from Seattle to Belfast City that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 December 2024.

Tue 14/118:50SEA - BHD
1 stop13h 55mFinnair
Tue 21/106:35BHD - SEA
1 stop12h 45mFinnair
Deal found 15/12£601
Tue 14/113:35SEA - BHD
2 stops17h 20mBritish Airways
Tue 21/108:40BHD - SEA
1 stop16h 15mBritish Airways
Deal found 15/12£631
Fri 31/118:50SEA - BHD
1 stop14h 25mMultiple Airlines
Fri 7/206:45BHD - SEA
1 stop12h 35mMultiple Airlines
Deal found 17/12£641
Tue 14/108:45SEA - BHD
2 stops24h 05mDelta
Tue 21/106:30BHD - SEA
2 stops17h 24mDelta
Deal found 15/12£647
Fri 31/113:35SEA - BHD
2 stops16h 40mAmerican Airlines
Fri 7/206:45BHD - SEA
1 stop12h 35mAmerican Airlines
Deal found 17/12£650
Sun 16/220:00SEA - BHD
2 stops14h 40mAer Lingus
Thu 27/210:40BHD - SEA
2 stops20h 26mAer Lingus
Deal found 17/12£2,910
Mon 17/315:15SEA - BHD
1 stop18h 35mKLM
Tue 25/317:20BHD - SEA
1 stop26h 20mKLM
Deal found 17/12£3,221
Sun 16/322:55SEA - BHD
2 stops34h 55mVirgin Atlantic
Mon 24/317:20BHD - SEA
1 stop26h 20mVirgin Atlantic
Deal found 17/12£3,224

Find flights from Seattle to Belfast City within your budget

Customise your flight search to find flights from Seattle to Belfast City 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 858,174 searches. Data last updated 18 December 2024.

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Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Tue 14/1

18:50-16:45

1 stop13h 55m

Belfast City

Tue 21/1

06:35-11:20

1 stop12h 45m

£601

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Tue 14/1

13:35-14:55

2 stops17h 20m

Belfast City

Tue 21/1

08:40-16:55

1 stop16h 15m

£631

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Fri 31/1

18:50-17:15

1 stop14h 25m

Belfast City

Fri 7/2

06:45-11:20

1 stop12h 35m

£641

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Tue 14/1

08:45-16:50

2 stops24h 05m

Belfast City

Tue 21/1

06:30-15:54

2 stops17h 24m

£647

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Fri 31/1

13:35-14:15

2 stops16h 40m

Belfast City

Fri 7/2

06:45-11:20

1 stop12h 35m

£650

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Sun 16/2

20:00-18:40

2 stops14h 40m

Belfast City

Thu 27/2

10:40-23:06

2 stops20h 26m

£2,910

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Mon 17/3

15:15-16:50

1 stop18h 35m

Belfast City

Tue 25/3

17:20-12:40

1 stop26h 20m

£3,221

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Sun 16/3

22:55-16:50

2 stops34h 55m

Belfast City

Mon 24/3

17:20-12:40

1 stop26h 20m

£3,224

Flights are sorted by cheapest return flights first.

Deals found on 15/12

Best time to book a flight from Seattle to Belfast City

Have a flexible travel schedule? Discover the best time to fly to Belfast City from Seattle with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Seattle to Belfast City

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

Rainfall in Belfast City by month

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

In terms of precipitation, rainfall in Belfast City Airport ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Belfast City Airport when rainfall is around 50.0 mm.

Temperature in Belfast City by month

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

If weather is an important factor for your trip to Belfast City Airport, 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 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Belfast City

Get insights into the airlines that provide service to Belfast City. 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 Belfast City. Reviews last updated 18 December 2024.
Delta
8.0
Very Good
8,604 reviews
Check prices

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.6

Food

7.3

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very Good
8,604 reviews
Delta
8.0
Very Good
8,604 reviews
Check prices

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.6

Food

7.3

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,349 reviews
Delta
8.0
Very Good
8,604 reviews
Check prices

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.6

Food

7.3

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.7
Good
1,285 reviews
Delta
8.0
Very Good
8,604 reviews
Check prices

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.6

Food

7.3

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic
7.5
Good
668 reviews
Delta
8.0
Very Good
8,604 reviews
Check prices

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.6

Food

7.3

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very Good
8,604 reviews
Check prices

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.6

Food

7.3

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Belfast City. 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 from for flights from Seattle to Belfast City?

    Seattle/Tacoma Intl (SEA) is the airport you will fly out of if you book a flight from Seattle to Belfast City. You should not have trouble finding flights to Belfast City from Seattle/Tacoma Intl; the airport handles an average of 0 outbound flights to Belfast City per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Seattle airport to Belfast City. It is only a 11.4 mi journey to Seattle/Tacoma Intl (SEA) from Seattle’s city center.

  • What are the cheapest airlines flying from Seattle to Belfast City Airport round-trip?

    Cheapflights users have booked flights from Seattle to Belfast City Airport round-trip from £601. Other airlines that can offer you cheap pricing are British Airways, from £631, and Delta, from £647. Finnair is currently priced 11% below the average price you’ll pay for this route.

  • Can I find deals for flights from Seattle to Belfast City that include hotel bookings?

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

  • How can I find direct flights from Seattle to Belfast City?

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

  • Can I find deals for business class flights from Seattle to Belfast City?

    Yes. Cheapflights offers flight deals from Seattle to Belfast City 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 Seattle to Belfast City Airport?

    Currently, March is the cheapest month in which you can book a flight from Seattle to Belfast City Airport (average of £95). Flying from Seattle to Belfast City Airport in July is currently the most expensive (average of £115). 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.

See more FAQs

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Alternative routes for Seattle to Belfast City

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Belfast Intl flights
Portland to Belfast City flights

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Yes! Start tracking prices for Seattle to Belfast City 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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