$358 Cheap Flights from Seattle (SEA) to Williams Lake (YWL)

View $358 flight on Thu, Nov 20, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Williams Lake, BC (YWL-Williams Lake Regional)

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

Prices were available within the past 7 days and start at $358 for one-way flights and $603 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, Dec 9 - Tue, Dec 16
SEA
Seattle
YWL
Williams Lake
$603 Roundtrip, found 2 days ago
$603
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Dec 9 from Seattle to Williams Lake, returning Tue, Dec 16, priced at $603 found 2 days ago
Alaska Airlines
Fri, Nov 21 - Tue, Nov 25
SEA
Seattle
YWL
Williams Lake
$969 Roundtrip, found 4 days ago
$969
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Fri, Nov 21 from Seattle to Williams Lake, returning Tue, Nov 25, priced at $969 found 4 days ago
Alaska Airlines
Fri, Nov 21 - Tue, Nov 25
SEA
Seattle
YWL
Williams Lake
$984 Roundtrip, found 3 days ago
$984
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Fri, Nov 21 from Seattle to Williams Lake, returning Tue, Nov 25, priced at $984 found 3 days ago

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Williams Lake Regional Airport (YWL) cost?
Lock in a cheap one-way flight from $358 or cheap return flight from $603 from Seattle - Tacoma Intl. Airport (SEA) to Williams Lake Regional Airport (YWL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Williams Lake Regional Airport (YWL)?
Planning your trip for December may help you find better deals, as it's the cheapest month for flights between SEA and YWL. You'll typically find the lowest fares during the off-season.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Williams Lake Regional Airport (YWL)?
Use the filter tool on Expedia to compare different airlines and find the cheapest carrier that'll fly you from SEA to YWL. Then, 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 Williams Lake Regional Airport (YWL)?
Direct flights from Seattle - Tacoma Intl. Airport (SEA) to Williams Lake Regional Airport (YWL) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SEA to YWL?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*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 Williams Lake Regional Airport (YWL)?
To avoid potential delays on the Seattle - Tacoma Intl. Airport (SEA) to Williams Lake Regional Airport (YWL) route, aim to travel before 3 PM. Departures after this hour 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 Williams Lake Regional Airport (YWL) last-minute?
Booking your plane ticket from SEA to YWL just before your journey is generally more expensive. However, if you're flexible with your schedule, you could score a cheap last-minute fare.
Is it cheaper to book a SEA to YWL flight and hotel package?
Compared with arranging flights and hotels separately, booking a SEA to YWL flight and hotel package with Expedia could lead to significant savings. What's more, managing everything in one place will take the stress out of travel planning. Just secure your flights and select from our extensive range of hotels, then customize your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Williams Lake Regional Airport (YWL)?
You can usually cancel or reschedule your SEA to YWL flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Williams Lake Regional
Roundtrip price
$602
Distance
327 mi

Book with confidence

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 December. 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 $358 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.

 

Seattle to Williams Lake Flights

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*Available to One Key members.