$656 Cheap Flights from Seattle (SEA) to Lerwick (LSI)

View $656 flight on Mon, Sep 22, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Lerwick (LSI-Sumburgh)

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Seattle to Lerwick (SEA-LSI)

Prices were available within the past 7 days and start at $656 for one-way flights and $1,052 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Mon, Sep 22 - Sun, Oct 5
SEA
Seattle
LSI
Lerwick
$1,052 Roundtrip, found 3 days ago
$1,052
Roundtrip
found 3 days ago
Select British Airways flight, departing Mon, Sep 22 from Seattle to Lerwick, returning Sun, Oct 5, priced at $1,052 found 3 days ago
British Airways
Mon, Sep 22 - Sun, Oct 5
SEA
Seattle
LSI
Lerwick
$1,056 Roundtrip, found 3 days ago
$1,056
Roundtrip
found 3 days ago
Select British Airways flight, departing Mon, Sep 22 from Seattle to Lerwick, returning Sun, Oct 5, priced at $1,056 found 3 days ago
British Airways
Mon, Sep 22 - Sun, Oct 5
SEA
Seattle
LSI
Lerwick
$1,062 Roundtrip, found 3 days ago
$1,062
Roundtrip
found 3 days ago
Select British Airways flight, departing Mon, Sep 22 from Seattle to Lerwick, returning Sun, Oct 5, priced at $1,062 found 3 days ago
British Airways
Mon, Sep 22 - Sun, Oct 5
SEA
Seattle
LSI
Lerwick
$1,063 Roundtrip, found 3 days ago
$1,063
Roundtrip
found 3 days ago
Select British Airways flight, departing Mon, Sep 22 from Seattle to Lerwick, returning Sun, Oct 5, priced at $1,063 found 3 days ago
United
Mon, Sep 22 - Sun, Oct 5
SEA
Seattle
LSI
Lerwick
$1,093 Roundtrip, found 3 days ago
$1,093
Roundtrip
found 3 days ago
Select United flight, departing Mon, Sep 22 from Seattle to Lerwick, returning Sun, Oct 5, priced at $1,093 found 3 days ago
British Airways
Mon, Sep 22 - Sun, Oct 5
SEA
Seattle
LSI
Lerwick
$1,094 Roundtrip, found 3 days ago
$1,094
Roundtrip
found 3 days ago
Select British Airways flight, departing Mon, Sep 22 from Seattle to Lerwick, returning Sun, Oct 5, priced at $1,094 found 3 days ago
British Airways
Mon, Sep 22 - Sun, Oct 5
SEA
Seattle
LSI
Lerwick
$1,102 Roundtrip, found 3 days ago
$1,102
Roundtrip
found 3 days ago
Select British Airways flight, departing Mon, Sep 22 from Seattle to Lerwick, returning Sun, Oct 5, priced at $1,102 found 3 days ago
British Airways
Mon, Sep 22 - Sun, Oct 5
SEA
Seattle
LSI
Lerwick
$1,106 Roundtrip, found 3 days ago
$1,106
Roundtrip
found 3 days ago
Select British Airways flight, departing Mon, Sep 22 from Seattle to Lerwick, returning Sun, Oct 5, priced at $1,106 found 3 days ago
British Airways
Mon, Sep 22 - Sun, Oct 5
SEA
Seattle
LSI
Lerwick
$1,112 Roundtrip, found 3 days ago
$1,112
Roundtrip
found 3 days ago
Select British Airways flight, departing Mon, Sep 22 from Seattle to Lerwick, returning Sun, Oct 5, priced at $1,112 found 3 days ago
American Airlines
Mon, Sep 22 - Sun, Oct 5
SEA
Seattle
LSI
Lerwick
$1,124 Roundtrip, found 3 days ago
$1,124
Roundtrip
found 3 days ago
Select American Airlines flight, departing Mon, Sep 22 from Seattle to Lerwick, returning Sun, Oct 5, priced at $1,124 found 3 days ago
Flights from Seattle (SEA) to Lerwick (LSI)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Sumburgh
Roundtrip price
$1,052
Distance
4315 mi

Seattle to Lerwick Flights

The cheapest times to fly from Seattle to Lerwick

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Lerwick are during the month of September. You can find some of the cheapest flights from Seattle to Lerwick with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Lerwick

Sunday is one of the best days to book for cheap flights from Seattle to Lerwick: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Lerwick

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Lerwick in 2025. You can also book with separate airlines for your outbound and return journeys, from $656 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Lerwick flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Lerwick airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Sumburgh Airport (LSI) cost?
Discover the latest flight deals from SEA to LSI by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from SEA to LSI?
The cheapest flights from SEA to LSI are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from SEA to LSI?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from SEA to LSI. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Sumburgh Airport (LSI)?
There aren't any daily direct flights available from Seattle - Tacoma Intl. Airport (SEA) to Sumburgh Airport (LSI). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be on your way in no time.
What day of the week has the most flights from SEA to LSI?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Sumburgh Airport (LSI)?
To avoid potential delays on the Seattle - Tacoma Intl. Airport (SEA) to Sumburgh Airport (LSI) route, travel before 3 PM. Later departures are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Sumburgh Airport (LSI) last-minute?
Waiting until just before your trip to book a ticket from SEA to LSI often results in higher prices. While you may come across some last-minute deals, they're not always guaranteed. Be flexible with your travel plans to boost your chances of scoring a bargain.
Is it cheaper to book a SEA to LSI flight and hotel package?
You'll typically save money by securing a SEA to LSI flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. After choosing your preferred accommodations and flights, consider adding extras like activities, car rentals and tours.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Sumburgh Airport (LSI)?
Typically, it's possible to cancel or reschedule your SEA to LSI flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more details on our Customer Service portal.

Explore a world of travel with Expedia