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Cheap flights from Sheffield to Seattle from £331

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
MAN — SEA
31 8月 — 7 9月1
1 adult

Cheapflights Tip: The best prices from Sheffield to Seattle/Tacoma Intl are usually found in March or January, booked 67 days in advance, depart on a Wednesday or Monday and return on a Wednesday

Cheap flight deals from Sheffield to Seattle

Keep the following information in mind while searching for Sheffield to Seattle flight deals. Data was last updated 26 8月 2025.

Round-trip from

£533

One-way from

£331

Popular in

August

Cheapest in

March

Average price

£915
2/10-15/10
  • 2/10-15/10
  • 6 total stops
  • 51h 10m total
  • Sheffield to Seattle
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15/10
  • 15/10
  • 3 total stops
  • 39h 27m total
  • Sheffield to Seattle
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£83 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Sheffield to Seattle

Cheapest flights from Sheffield to Seattle
Explore the most affordable flight options available from Sheffield to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 8月 2025.

週四 2/1020:40MAN - SEA
3 stops29h 10mMultiple Airlines
週三 15/1015:45SEA - MAN
3 stops22h 00mMultiple Airlines
Deal found 24/8£533
週一 17/1106:05MAN - SEA
1 stop18h 50mBritish Airways
週四 27/1118:50SEA - MAN
1 stop16h 15mBritish Airways
Deal found 24/8£535
週五 26/913:05MAN - SEA
1 stop15h 35mIcelandair
週四 9/1015:45SEA - MAN
1 stop11h 55mIcelandair
Deal found 25/8£537
週一 17/1119:15MAN - SEA
2 stops35h 01mScandinavian Airlines
週四 27/1107:20SEA - MAN
2 stops27h 15mScandinavian Airlines
Deal found 24/8£537
週四 9/1019:10MAN - SEA
1 stop26h 50mScandinavian Airlines
週四 16/1012:45SEA - MAN
2 stops36h 35mScandinavian Airlines
Deal found 25/8£541
週五 5/919:10MAN - SEA
1 stop26h 40mScandinavian Airlines
週日 14/916:20SEA - MAN
1 stop33h 10mScandinavian Airlines
Deal found 23/8£542
週二 9/905:55MAN - SEA
1 stop14h 00mLufthansa
週二 23/914:20SEA - MAN
1 stop19h 00mLufthansa
Deal found 24/8£551
週一 17/1120:35MAN - SEA
2 stops32h 00mVirgin Atlantic
週四 27/1111:40SEA - MAN
1 stop14h 50mVirgin Atlantic
Deal found 24/8£554
週五 21/1111:55MAN - SEA
1 stop13h 05mIcelandair
週五 28/1114:35SEA - MAN
1 stop12h 10mIcelandair
Deal found 24/8£556
週三 15/1012:40MAN - SEA
1 stop13h 10mIcelandair
週五 24/1015:45SEA - MAN
1 stop11h 55mIcelandair
Deal found 24/8£559
週二 23/919:10MAN - SEA
2 stops36h 44mScandinavian Airlines
週二 30/910:25SEA - MAN
2 stops24h 05mScandinavian Airlines
Deal found 25/8£561

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sheffield 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 858,174 searches. Data last updated 26 8月 2025.
Use the filters below to find and compare flights from Sheffield to Seattle that are best for you.

Fly from

Sheffield

Fly to

Seattle

Route

Depart

Return

Price

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

週四 2/10

20:40-17:50

3 stops29h 10m

Seattle/Tacoma Intl

週三 15/10

15:45-21:45

3 stops22h 00m

£533

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

週一 17/11

06:05-16:55

1 stop18h 50m

Seattle/Tacoma Intl

週四 27/11

18:50-19:05

1 stop16h 15m

£535

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

週五 26/9

13:05-20:40

1 stop15h 35m

Seattle/Tacoma Intl

週四 9/10

15:45-11:40

1 stop11h 55m

£537

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

週一 17/11

19:15-22:16

2 stops35h 01m

Seattle/Tacoma Intl

週四 27/11

07:20-18:35

2 stops27h 15m

£537

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

週四 9/10

19:10-14:00

1 stop26h 50m

Seattle/Tacoma Intl

週四 16/10

12:45-09:20

2 stops36h 35m

£541

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

週五 5/9

19:10-13:50

1 stop26h 40m

Seattle/Tacoma Intl

週日 14/9

16:20-09:30

1 stop33h 10m

£542

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

週二 23/9

13:05-20:40

1 stop15h 35m

Seattle/Tacoma Intl

週二 30/9

15:45-11:40

1 stop11h 55m

£548

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

週二 9/9

05:55-11:55

1 stop14h 00m

Seattle/Tacoma Intl

週二 23/9

14:20-17:20

1 stop19h 00m

£551

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

週五 21/11

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

週五 28/11

14:35-10:45

1 stop12h 10m

£553

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

週一 17/11

20:35-20:35

2 stops32h 00m

Seattle/Tacoma Intl

週四 27/11

11:40-10:30

1 stop14h 50m

£554

Flights are sorted by cheapest return flights first.

Deals found on 25/8

Showing 1-10 of 15 results
1
2

Best time to book a flight from Sheffield to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Sheffield 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.

Cheapflights Insights

Everything you need to know about your flight from Sheffield to Seattle

How far ahead should I book a flight from Sheffield to Seattle?

Use this chart to determine the optimal time to book a return flight from Sheffield to Seattle. Price data was last updated on 22 August 2025.

The best time to book flights from Sheffield to Seattle is 67 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Sheffield to Seattle?

Currently, January is the cheapest month in which you can book a flight from Sheffield to Seattle (average of £622). Flying from Sheffield to Seattle in July is currently the most expensive (average of £946). 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.

What is the cheapest time of day to fly from SH9 to SEA?

Find hourly flight availability from Sheffield 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 26 8月 2025.

When flying from Sheffield to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Sheffield to Seattle?

Use this chart to determine the cheapest time to fly return from Sheffield to Seattle. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their Sheffield to Seattle flight should consider departing on Monday afternoons when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 26 8月 2025.
Get a feel of what it's like to fly with KLM, Virgin Atlantic, andAer Lingus from Sheffield to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,387 reviews
Check prices

Comfort

7.7

Crew

8.4

Food

7.3

Overall

7.8

Entertainment

7.1

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,387 reviews
KLM
7.8
Good
1,387 reviews
Check prices

Comfort

7.7

Crew

8.4

Food

7.3

Overall

7.8

Entertainment

7.1

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Virgin Atlantic
7.4
Good
658 reviews
KLM
7.8
Good
1,387 reviews
Check prices

Comfort

7.7

Crew

8.4

Food

7.3

Overall

7.8

Entertainment

7.1

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Aer Lingus
7.2
Good
1,237 reviews
KLM
7.8
Good
1,387 reviews
Check prices

Comfort

7.7

Crew

8.4

Food

7.3

Overall

7.8

Entertainment

7.1

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Icelandair
7.0
Good
533 reviews
KLM
7.8
Good
1,387 reviews
Check prices

Comfort

7.7

Crew

8.4

Food

7.3

Overall

7.8

Entertainment

7.1

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
British Airways
6.7
Okay
7,309 reviews
KLM
7.8
Good
1,387 reviews
Check prices

Comfort

7.7

Crew

8.4

Food

7.3

Overall

7.8

Entertainment

7.1

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

Find useful and relevant information for your journey from Sheffield 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 Sheffield?

    If you book a flight to Seattle from Sheffield, 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. There are 0 flights from Sheffield to Seattle/Tacoma Intl per day from 11 different airlines.

  • How long is the flight from Sheffield to Seattle?

    Airlines like British Airways, Icelandair, and Scandinavian Airlines fly from Sheffield to Seattle in about 15h 35m. The time it takes to get you to your destination can typically vary by up to 19h 26m. Airlines will cover a distance of 4633 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

  • How can I find direct flights from Sheffield to Seattle?

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

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

    Yes. Cheapflights offers flight deals from Sheffield 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.

  • What is the cheapest month to book a flight from Sheffield to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Sheffield to Seattle (average of £622). Flying from Sheffield to Seattle in July is currently the most expensive (average of £946). 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

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
Bothell
SeaTac

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Sheffield to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Sheffield to Seattle

Discover the top 10 airlines that operate flights from Sheffield to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 26 8月 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£458Average£620FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Scandinavian AirlinesCheapest£459Average£621FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Aer LingusCheapest£465Average£813FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
LufthansaCheapest£472Average£591FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IcelandairCheapest£484Average£584FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£488Average£650FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air FranceCheapest£498Average£647FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapest£503Average£620FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapest£505Average£645FlexibilityNo cancel feeOn-time75%
Search KLM flights
DeltaCheapest£520Average£651FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

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 Sheffield to Seattle?

Deals for Sheffield to Seattle flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

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

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

Certainly. Search results for flights to Seattle from Sheffield shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Seattle from Sheffield today and book when prices fit your budget.

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