$242 Cheap Flights from Seattle (SEA) to Williams Lake (YWL)

Featured airlines

American Airlines
United
Southwest Airlines
Delta
Spirit Airlines
JetBlue Airways
Frontier Airlines
Air India
Hawaiian Airlines
  • 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
Find available prices by choosing your travel dates.

Cheap Flights from Seattle to Williams Lake (SEA-YWL)

Prices were available within the past 7 days and start at $242 for one-way flights and $444 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

WestJet
Alaska Airlines
WestJet
Alaska Airlines
Alaska Airlines
Alaska Airlines
Alaska Airlines
WestJet
WestJet
WestJet
Alaska Airlines
Air Canada
Flights from Seattle (SEA) to Williams Lake (YWL)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Williams Lake Regional
Roundtrip price
$444
Distance
327 mi

Seattle to Williams Lake Flights

The cheapest times to fly from Seattle to Williams Lake

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 Williams Lake are during the month of July. You can find some of the cheapest flights from Seattle to Williams Lake with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Seattle to Williams Lake

Sunday is one of the best days to book for cheap flights from Seattle to Williams Lake: 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 Williams Lake

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 Williams Lake in 2025. You can also book with separate airlines for your outbound and return journeys, from $242 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 Williams Lake 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 Williams Lake 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

Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Williams Lake Airport last minute?
Being spontaneous is a rewarding way to explore the globe, but it’s not necessarily the ideal way to track down a bargain plane ticket. Consider booking your Sea-Tac Airport to YWL journey well ahead of time rather than waiting till the last minute. Based on flight pricing and demand studies in 2022, we have found that the best time to book domestic flights is between 28 – 35 days ahead of the departure date, and international flights three to four months in advance. Save up that spontaneity for when you’re discovering YWL!
What airports do you fly into for Williams Lake from Seattle?
Williams Lake Regional Airport (YWL) is where all Seattle to Williams Lake flights disembark. It’s situated approximately 4 mi northeast of the middle of Williams Lake. You’ll find the best deals on flights, hotels, activities and car rentals when organizing your Williams Lake getaway with Expedia.
Can I change the date of my flight from Sea-Tac Airport to YWL?
Easily make changes to your Sea-Tac Airport to Williams Lake Airport flight through the Expedia Trips portal. But before you make any amendments, review the rules in your itinerary to see what the carrier will allow you to do and what charges may apply. Some carriers have a change fee per person, plus any difference in fare prices. But if you booked in the last 24 hours, you may be able to cancel for free and arrange new flights. You can also check out our Customer Service portal for more info and to chat with our Virtual Agent.

Explore a world of travel with Expedia

*Available to One Key members.