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Cheap flights from Sheffield to Seattle from £301

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
MAN — SEA
16 Jul — 23 Jul1
1 adult

Cheapflights Tip: The best prices from Sheffield to Seattle/Tacoma Intl are usually found in March or January, booked 61 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 11 July 2025.

Round-trip from

£561

One-way from

£301

Popular in

August

Cheapest in

March

Average price

£740
Icelandair
  • Icelandair
  • 7/9-22/10
  • 3 total stops
  • 42h 28m total
  • Sheffield to Seattle
Search Deals
1/9
  • 1/9
  • 3 total stops
  • 50h 56m total
  • Sheffield to Seattle
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£69 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 11 July 2025.

Sun 7/912:00MAN - SEA
2 stops30h 33mMultiple Airlines
Wed 22/1015:45SEA - MAN
1 stop11h 55mMultiple Airlines
Deal found 10/7£561
Thu 11/919:10MAN - SEA
1 stop26h 50mScandinavian Airlines
Thu 25/912:15SEA - MAN
2 stops22h 15mScandinavian Airlines
Deal found 10/7£562
Fri 7/1106:25MAN - SEA
1 stop14h 55mLufthansa
Fri 14/1114:00SEA - MAN
1 stop19h 00mLufthansa
Deal found 9/7£564
Wed 3/913:05MAN - SEA
1 stop12h 45mIcelandair
Wed 22/1015:45SEA - MAN
1 stop11h 55mIcelandair
Deal found 10/7£567
Mon 8/907:00MAN - SEA
1 stop12h 35mBritish Airways
Mon 20/1020:20SEA - MAN
1 stop13h 25mBritish Airways
Deal found 10/7£570
Sat 6/908:50MAN - SEA
1 stop14h 00mSWISS
Tue 21/1015:28SEA - MAN
2 stops32h 37mSWISS
Deal found 10/7£584
Thu 11/911:50MAN - SEA
1 stop31h 09mUnited Airlines
Thu 25/923:40SEA - MAN
2 stops26h 40mUnited Airlines
Deal found 9/7£586
Mon 25/808:00MAN - SEA
1 stop18h 20mAmerican Airlines
Tue 2/913:30SEA - MAN
1 stop12h 15mAmerican Airlines
Deal found 9/7£590
Thu 4/911:50MAN - SEA
2 stops29h 31mAir Canada
Mon 20/1007:30SEA - MAN
2 stops18h 55mAir Canada
Deal found 10/7£598
Tue 12/805:55MAN - SEA
1 stop13h 40mDelta
Thu 18/913:30SEA - MAN
1 stop15h 55mDelta
Deal found 9/7£617
Sun 3/820:40MAN - SEA
1 stop27h 15mKLM
Thu 14/814:10SEA - MAN
1 stop21h 55mKLM
Deal found 10/7£621

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 11 July 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

Sun 7/9

12:00-10:33

2 stops30h 33m

Seattle/Tacoma Intl

Wed 22/10

15:45-11:40

1 stop11h 55m

£561

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

Thu 11/9

19:10-14:00

1 stop26h 50m

Seattle/Tacoma Intl

Thu 25/9

12:15-18:30

2 stops22h 15m

£562

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

Wed 3/9

13:05-17:50

1 stop12h 45m

Seattle/Tacoma Intl

Wed 22/10

15:45-11:40

1 stop11h 55m

£567

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

Mon 8/9

07:00-11:35

1 stop12h 35m

Seattle/Tacoma Intl

Mon 20/10

20:20-17:45

1 stop13h 25m

£570

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

Fri 29/8

06:05-22:59

2 stops24h 54m

Seattle/Tacoma Intl

Wed 10/9

07:10-10:25

3 stops19h 15m

£578

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

Sat 6/9

08:50-14:50

1 stop14h 00m

Seattle/Tacoma Intl

Tue 21/10

15:28-08:05

2 stops32h 37m

£584

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

Thu 11/9

11:50-10:59

1 stop31h 09m

Seattle/Tacoma Intl

Thu 25/9

23:40-10:20

2 stops26h 40m

£586

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

Mon 25/8

08:00-18:20

1 stop18h 20m

Seattle/Tacoma Intl

Tue 2/9

13:30-09:45

1 stop12h 15m

£590

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

Thu 4/9

11:50-09:21

2 stops29h 31m

Seattle/Tacoma Intl

Mon 20/10

07:30-10:25

2 stops18h 55m

£598

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

Tue 12/8

05:55-15:55

1 stop18h 00m

Seattle/Tacoma Intl

Thu 18/9

13:30-16:55

1 stop19h 25m

£617

Flights are sorted by cheapest return flights first.

Deals found on 10/7

Showing 1-10 of 16 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 27 June 2025.

The best time to book flights from Sheffield to Seattle is 61 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 11 July 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 11 July 2025.
Get a feel of what it's like to fly with Delta, KLM, andSWISS 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.
Delta
8.0
Very Good
7,951 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very Good
7,951 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
KLM
7.8
Good
1,372 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
SWISS
7.5
Good
1,655 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
United Airlines
7.4
Good
8,846 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Turkish Airlines
7.3
Good
3,896 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

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 12 different airlines.

  • What are the cheapest airlines to fly from Sheffield to Seattle one-way?

    One-way options have recently been found by users for as low as £595 on Aer Lingus. Other airlines that offer cheap prices include Icelandair from £820 and Turkish Airlines from £833 one-way.

  • 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 Sheffield?

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

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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 11 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£436Average£656FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
United AirlinesCheapest£453Average£617FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£465Average£618FlexibilityNo cancel feeOn-time76%
Search Finnair flights
LufthansaCheapest£469Average£578FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IcelandairCheapest£478Average£591FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£482Average£639FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£488Average£805FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air FranceCheapest£491Average£629FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapest£498Average£618FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapest£509Average£641FlexibilityNo cancel feeOn-time75%
Search KLM 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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