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Cheap flights from Sheffield to Seattle from £298

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 31/1. Fares are subject to change and may not be available on all flights or dates of travel.
MAN — SEA
14 Nov — 21 Nov1
1 adult
1 adult, Economy

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

Find flight deals from Sheffield to Seattle

Enter your travel dates to find the best prices.

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 15 October 2025.

Wed 5/1117:00MAN - SEA
2 stops27h 10mMultiple Airlines
Thu 20/1108:10SEA - MAN
3 stops26h 40mMultiple Airlines
Deal found 15/10£530
Wed 12/1111:00MAN - SEA
3 stops33h 10mMultiple Airlines
Wed 19/1115:10SEA - MAN
2 stops24h 20mMultiple Airlines
Deal found 13/10£557
Wed 5/1111:55MAN - SEA
1 stop13h 05mIcelandair
Wed 12/1114:35SEA - MAN
1 stop12h 10mIcelandair
Deal found 13/10£563
Wed 12/1111:55MAN - SEA
1 stop13h 05mIcelandair
Wed 19/1114:35SEA - MAN
1 stop12h 10mIcelandair
Deal found 13/10£564
Mon 1/1211:55MAN - SEA
1 stop13h 05mIcelandair
Thu 4/1214:35SEA - MAN
1 stop12h 25mIcelandair
Deal found 15/10£567
Wed 5/1106:00MAN - SEA
2 stops24h 28mMultiple Airlines
Wed 12/1113:20SEA - MAN
2 stops20h 35mMultiple Airlines
Deal found 13/10£592
Wed 5/1106:00MAN - SEA
2 stops24h 28mLufthansa
Wed 12/1115:10SEA - MAN
1 stop17h 45mLufthansa
Deal found 13/10£595
Tue 25/1109:10MAN - SEA
2 stops45h 18mSWISS
Tue 2/1210:05SEA - MAN
2 stops29h 15mSWISS
Deal found 15/10£596
Wed 12/1109:10MAN - SEA
2 stops21h 18mSWISS
Wed 19/1107:00SEA - MAN
2 stops25h 55mSWISS
Deal found 13/10£597

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 15 October 2025.

Round-trip from

£554

One-way from

£298

Popular in

August

Cheapest in

March

Average price

£553
10/1-12/1
  • 10/1-12/1
  • 4 total stops
  • 36h 40m total
  • Sheffield to Seattle
Search Deals
31/1
  • 31/1
  • 3 total stops
  • 51h 56m total
  • Sheffield to Seattle
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£73 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 15 October 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

Wed 5/11

17:00-12:10

2 stops27h 10m

Seattle/Tacoma Intl

Thu 20/11

08:10-18:50

3 stops26h 40m

£530

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

Sat 21/2

15:10-17:00

2 stops33h 50m

Seattle/Tacoma Intl

Sat 28/2

14:35-22:10

2 stops23h 35m

£557

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

Wed 12/11

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Wed 19/11

14:35-10:45

1 stop12h 10m

£564

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

Mon 1/12

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Thu 4/12

14:35-11:00

1 stop12h 25m

£567

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

Tue 3/3

06:00-22:29

2 stops24h 29m

Seattle/Tacoma Intl

Thu 12/3

15:00-12:20

1 stop14h 20m

£577

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

Tue 3/3

06:00-22:29

2 stops24h 29m

Seattle/Tacoma Intl

Thu 12/3

08:29-21:35

2 stops30h 06m

£589

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

Wed 5/11

06:00-22:28

2 stops24h 28m

Seattle/Tacoma Intl

Wed 12/11

13:20-17:55

2 stops20h 35m

£592

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

Tue 25/11

09:10-22:28

2 stops45h 18m

Seattle/Tacoma Intl

Tue 2/12

10:05-23:20

2 stops29h 15m

£596

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

Wed 12/11

09:10-22:28

2 stops21h 18m

Seattle/Tacoma Intl

Wed 19/11

07:00-16:55

2 stops25h 55m

£597

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

Tue 25/11

06:00-21:13

2 stops23h 13m

Seattle/Tacoma Intl

Tue 2/12

14:00-12:20

1 stop14h 20m

£597

Flights are sorted by cheapest return flights first.

Deals found on 13/10

Showing 1-10 of 14 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 10 October 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, February is the cheapest month in which you can book a flight from Sheffield to Seattle (average of £463). Flying from Sheffield to Seattle in July is currently the most expensive (average of £594). 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 15 October 2025.

It’s optimal to fly from Sheffield to Seattle in the evening. By choosing this option you can save up to 12% on the cost of your flight, compared to a flight at midday.

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 Friday 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 15 October 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
7.7
Good
1,402 reviews
Check prices

Boarding

7.8

Crew

8.4

Food

7.2

Entertainment

7.1

Overall

7.7

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,402 reviews
KLM
7.7
Good
1,402 reviews
Check prices

Boarding

7.8

Crew

8.4

Food

7.2

Entertainment

7.1

Overall

7.7

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Virgin Atlantic
7.4
Good
667 reviews
KLM
7.7
Good
1,402 reviews
Check prices

Boarding

7.8

Crew

8.4

Food

7.2

Entertainment

7.1

Overall

7.7

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Aer Lingus
7.2
Good
1,337 reviews
KLM
7.7
Good
1,402 reviews
Check prices

Boarding

7.8

Crew

8.4

Food

7.2

Entertainment

7.1

Overall

7.7

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Icelandair
7.0
Good
556 reviews
KLM
7.7
Good
1,402 reviews
Check prices

Boarding

7.8

Crew

8.4

Food

7.2

Entertainment

7.1

Overall

7.7

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
British Airways
6.7
Okay
7,457 reviews
KLM
7.7
Good
1,402 reviews
Check prices

Boarding

7.8

Crew

8.4

Food

7.2

Entertainment

7.1

Overall

7.7

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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 Icelandair and Lufthansa fly from Sheffield to Seattle in about 13h 05m. The time it takes to get you to your destination can typically vary by up to 11h 24m. 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, February is the cheapest month in which you can book a flight from Sheffield to Seattle (average of £463). Flying from Sheffield to Seattle in July is currently the most expensive (average of £594). 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

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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 15 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£445Average£621FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
FinnairCheapest£460Average£620FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Aer LingusCheapest£471Average£820FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
LufthansaCheapest£478Average£605FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IcelandairCheapest£484Average£582FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£492Average£654FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air FranceCheapest£501Average£671FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapest£512Average£634FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapest£512Average£665FlexibilityNo cancel feeOn-time75%
Search KLM flights
DeltaCheapest£527Average£660FlexibilityNo 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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