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Find Sidney to Seattle flights starting at CAD 423.

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • One way
  • Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to fly from Sidney to Seattle?

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Find Cheapest Airlines Flying from Sidney to Seattle

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Cape Air
From CAD 250

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Alternative Routes for Sidney to Seattle Flights

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Sidney to Seattle.

  • Cheapest
    Cape Air
    SDY
    17:13
    28h 52m
    2 transfer
    SEA
    21:05
    Sidney-Richland Municipal Airport - Seattle-Tacoma International Airport
    Fri, Dec 6Cape Air
    CAD 250
  • Cape Air
    SDY
    17:13
    28h 52m
    2 transfer
    SEA
    21:05
    Sidney-Richland Municipal Airport - Seattle-Tacoma International Airport
    Fri, Dec 6Cape Air
    CAD 250
    Find More Flights

FAQ

  • When are flight tickets from Sidney (SDY) to Seattle (SEA) the cheapest?

    Airlines adjust prices for flights from Sidney to Seattle based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much are flights from Sidney (SDY) to Seattle (SEA) cost?

    According to Trip.com's data, the lowest price is around CAD 582.
  • What is the transportation method from the main airport to downtown in Seattle?

    • The distance from Seattle-Tacoma International Airport to downtown is about 17km, by taxi about 30 minutes.
    • The distance from Lake Union Sea Plane Base to downtown is about 2km, by taxi about 20 minutes.
  • How many airports in Seattle (SEA)?

How to find a cheap flight from Sidney to Seattle

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Sidney to Seattle. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Information for Sidney to Seattle Flights

Cheapest direct flight priceCAD 423
Off-season travel monthDecember
Peak season for travelNovember
Flight distance1,355.18km
Popular airlineCape Air