Cheap Flights from Seattle (LKE) to Pasco (PSC)

Grab a cheap one-way flight or cheap return flight from Lake Union Seaplane Base Airport (LKE) to Tri-Cities Airport (PSC) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.

Flying in can help you save, as it's the cheapest month for flights between LKE and PSC. You'll typically find the lowest prices during off-peak months.

There's no direct route from Seattle, WA (LKE-Lake Union Seaplane Base) to Tri-Cities Airport (PSC). However, there are other airports with nonstop flights. Begin your journey at Seattle - Tacoma Intl. Airport (SEA) and head straight to Pasco without a layover.

Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from LKE to PSC. Then, sort your results by "Price (lowest to highest)" to pick up a good deal.

Nonstop flights from Lake Union Seaplane Base Airport (LKE) to Tri-Cities Airport (PSC) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and pick either "1 Stop" or "2+ Stops."

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.

To reach Tri-Cities Airport (PSC) on time, choose a flight that takes off from Lake Union Seaplane Base Airport (LKE) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.*

*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.

Holding off until right before your break to book a ticket from LKE to PSC often results in higher prices. While you may find some last-minute discounts, they aren't always guaranteed. Allow some flexibility in your schedule for a better chance of snagging a bargain.

Securing a LKE to PSC flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Choose from our wide range of accommodations and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.

In most instances, you're able to cancel or reschedule your LKE to PSC flight. However, there may be additional charges, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you'd like more information, head to our Customer Service portal.