$100 Find Cheap Flights from Canada to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Seattle departing on 6/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Seattle, as well as popular online travel agencies
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Cheap Flights from Canada to Seattle

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Canada to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Canada to Seattle

Mon, Jun 23 - Sun, Jul 20
WestJet Logo
7:35 pm - 8:28 pmYYC-SEA
1h 53mnonstop
WestJet Logo
1:15 pm - 6:40 pmSEA-YYC
4h 25m1 stop
$161WestJet
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Mon, Jun 23 - Sun, Jul 20
WestJet Logo
7:35 pm - 8:28 pmYYC-SEA
1h 53mnonstop
WestJet Logo
7:35 pm - 10:15 pmSEA-YYC
1h 40mnonstop
$162WestJet
Find Deal
Mon, Jul 21 - Thu, Jul 24
Air Canada Logo
12:30 pm - 6:36 pmYYC-SEA
7h 06m2 stops
Air Canada Logo
7:15 pm - 12:43 amSEA-YYC
4h 28m1 stop
$176Air Canada
Find Deal
Mon, Jul 21 - Thu, Jul 24
Air Canada Logo
3:50 pm - 10:16 pmYYC-SEA
7h 26m2 stops
Air Canada Logo
5:30 am - 3:01 pmSEA-YYC
8h 31m2 stops
$178Air Canada
Find Deal
Sat, Aug 23 - Sat, Aug 30
United Airlines Logo
6:00 am - 6:49 pmYEG-SEA
13h 49m2 stops
United Airlines Logo
5:07 am - 2:08 pmSEA-YEG
8h 01m1 stop
$206United Airlines
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Fri, Jul 4 - Fri, Jul 11
Alaska Airlines Logo
7:30 pm - 8:35 pmYVR-SEA
1h 05mnonstop
Alaska Airlines Logo
10:57 pm - 11:58 pmSEA-YVR
1h 01mnonstop
$216Alaska Airlines
Find Deal
Fri, Jul 25 - Thu, Jul 31
Alaska Airlines Logo
6:00 am - 7:10 amYVR-SEA
1h 10mnonstop
Alaska Airlines Logo
10:57 pm - 11:58 pmSEA-YVR
1h 01mnonstop
$227Alaska Airlines
Find Deal
Fri, Sep 5 - Tue, Sep 9
United Airlines Logo
3:17 pm - 9:22 pmYEG-SEA
7h 05m1 stop
United Airlines Logo
7:00 am - 10:04 pmSEA-YEG
14h 04m2 stops
$229United Airlines
Find Deal
Thu, Jun 26 - Sun, Jun 29
Delta Logo
12:00 pm - 4:53 pmYYC-SEA
5h 53m1 stop
Delta Logo
7:35 pm - 10:15 pmSEA-YYC
1h 40mnonstop
$239Delta
Find Deal
Sat, Jun 28 - Mon, Jun 30
Delta Logo
5:00 pm - 9:04 pmYYC-SEA
5h 04m1 stop
Delta Logo
5:48 pm - 12:44 amSEA-YYC
5h 56m1 stop
$240Delta
Find Deal
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KAYAK's insights & trends for flights to Seattle

Get data-powered insights and trends for flights to Seattle to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Seattle?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the cheapest flight deal to Seattle was found on the route from Calgary, at $161 return. The most popular connection is from Vancouver to Seattle and KAYAK users have found round-trip deals for as low as $201 in the last 3 days.

How much is a flight to Seattle?

The average and cheapest price for all round-trip flights to Seattle from each origin found by users searching on KAYAK in the last month.

A flight to Seattle costs $498 on average. The cheapest price found on KAYAK in the last 2 weeks cost $109 and departed from Kelowna. The most popular routes on KAYAK are Calgary to Seattle which costs $1,069 on average, and Vancouver to Seattle, which costs $767 on average.

See prices from:

What is the cheapest month to fly to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Seattle is February, where tickets cost $264 on average for return flights. On the other hand, the most expensive months are July and December, where the average cost of tickets from Canada is $431 and $423 respectively. For one-way flights, the best month to travel is October with an average price of $379.

What is a good deal for flights to Seattle?

If you’re looking for cheap airfare to Seattle, 25% of our users found tickets to Seattle for the following prices or less: From Montreal Pierre Elliott Trudeau Intl Airport $337 round-trip, from Calgary $394 round-trip, from Toronto Pearson Intl Airport $413 round-trip.

How far in advance should I book a flight to Seattle?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.


Good to know

Low seasonFebruary
High seasonAugust
Cheapest flight$100
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly and prices are also 15% lower on average.
Flight from Calgary to Seattle

FAQs - booking Seattle flights

  • What is the process for clearing customs and immigration at Seattle/Tacoma International Airport?

    Canadian residents will enter a designated area of passport control and do not require a visa to enter the United States. After passport control, passengers will head to the baggage claim carousels to collect any checked baggage. If you are transferring to another flight, you will stay left along the orange walls to reach customs. To exit for Seattle, you will go right along the green walls to proceed through customs.

  • What are the public transportation options at Seattle/Tacoma International Airport?

    The airport offers both a bus service and Link Light Rail Service. The King County Metro Transit bus routes cover most of the greater Seattle area, while the Sound Transit bus service offers express buses to Seattle and the surrounding areas outside of the city. The Link Light Rail system runs every day from 5:00 AM until 1:00 AM, with trains running every 6 to 15 minutes depending on the time of day. These trains are a great way to reach most of the Seattle metro area in a timely fashion.

  • If I am being picked up after my flight to Seattle, is there a cell phone lot where my ride can wait?

    The airport office a cell phone lot with 200 parking spaces and free Wi-Fi. Drivers are allowed to wait for their passenger for up to 20 minutes in the cell phone lot without any charge. Once passengers have collected all their luggage and exited, drivers should then proceed to the terminal to pick them up.

  • Where can I rent a car at Seattle/Tacoma International Airport?

    Seattle/Tacoma International Airport has a rental car facility where all rental car companies operate. This facility can be accessed by the free dedicated shuttle buses that run 24 hours per day. All major companies such as Hertz, Avis and Budget operate at the airport, and all of their customer service desks are located at the Rental Car Center.

  • What is the cheapest flight to Seattle?

    In the last 3 days, the cheapest flight deal to Seattle was found on the route from Calgary, at $161 return. The most popular connection is from Vancouver to Seattle and KAYAK users have found round-trip deals for as low as $201 in the last 3 days.

  • How far is Seattle/Tacoma Intl Airport from central Seattle?

    The distance between Seattle/Tacoma Intl Airport and downtown Seattle is 11 miles.

  • What is the name of Seattle’s airport?

    All flights to Seattle land at Seattle/Tacoma Intl Airport. The airport code is SEA,and it can also be referred to as Seattle-Tacoma Intl, Seattle/Tacoma, or Seattle/Tacoma Intl.

  • How much is a flight to Seattle?

    On average, a flight to Seattle costs $498. The cheapest price found on KAYAK in the last 2 weeks cost $109 and departed from Kelowna Airport.

  • What is the cheapest day to fly to Seattle?

    Based on KAYAK data, the cheapest day to fly to Seattle is Friday where round-trip tickets can be as cheap as $517. On the other hand, the most expensive day to fly is Monday, where round-trip prices are $691 on average.

  • How does KAYAK find such low prices on flights to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Seattle?

    The cheapest time of day to fly to Seattle is generally at night, when round-trip flights cost $359 on average. The most expensive time of day to fly to Seattle is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $539.

  • How many direct flights to Seattle are there each week?

    Each week there are around 4,366 direct flights from within Canada to Seattle. The most common day for departures is Friday, with 15% of flights taking off on this day.

Top tips for finding cheap flights to Seattle

  • Looking for cheap airfare to Seattle? 25% of our users found round-trip tickets to Seattle for the following prices or less: From Calgary $285, from Vancouver Intl $755
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Seattle flight deals.
  • For passengers that are travelling on flights to Seattle with children, it is good to know that there is a free children's play area that is open 24 hours per day. This play area is located near the Seattle Tap Room between the A gates and the Central Terminal inside the Seattle/Tacoma International Airport.
  • Seattle is a city that’s known for music, and the Seattle Airport is no different. Seattle/Tacoma International Airport offers live music seven days per week at a variety of locations throughout the terminal buildings.
  • Seattle/Tacoma International Airport offers excellent free WiFi throughout the airport. When you first log in to the WiFi service, you will immediately be shown a screen with information relevant to your location such as nearby food and concessions within the airport.
  • If you need to decompress for a few minutes after your flight to Seattle, The Club at SEA is just the spot for you. With the purchase of a day pass you can enjoy two locations inside the airport that both offer free WiFi with workstations, snacks and beverages, as well as newspapers and TVs.
  • If you are not going to need everything that you brought along on your flight to Seattle, Smarte Carte offers storage for your bags and even for any refrigerated items that you might have. They also rent things like car seats and strollers for kids.

Top 5 airlines serving from Canada to Seattle

 
See real verified KAYAK customer reviews for airlines flying to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Canada to Seattle. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 10000 reviews
7.1Food
8.1Boarding
7.8Comfort
7.1Entertainment
8.5Crew
Airline reviews

Flight was delayed 5 hours. Missed connecting flight. Very little apology or attempt to make anything better. Got a $150 credit for next flight. There won’t be another flight. First time on Alaska - last time. Keep your credit. Should have done something more

2.0 MediocreMary, Jun 2025ORD - SEA
Read more Alaska Airlines reviews

Flight was delayed 5 hours. Missed connecting flight. Very little apology or attempt to make anything better. Got a $150 credit for next flight. There won’t be another flight. First time on Alaska - last time. Keep your credit. Should have done something more

The crew the employees were friendly and excellent. There was a problem with the plane and they had workers there immediately working on it. They made sure the people that had immediate connects knew what gates they had to get to and had them leave the plane first. Very thoughtful.

We waited over an hour for our luggage to arrive at the carousel in Seattle.

Like the friendliness of the crew, each flight had a very very drunk person next to me and the last flight had a very obese man pushing me into the aisle while the crew kept ending up hitting me in the shoulder with the beverage carts.

Flight was about 30 minutes delayed. All staff were friendly and professional while keeping us updated.

My screen was hard to change channels….seemed it was worn out….i just gave up and read a book I brought

Booked a first class ticket from Anchorage to Seattle but was denied complimentary access to Alaska Lounge as our 1500 mile flight wasn’t long enough’

We were lucky to be seated in an upgraded row and received free drinks!!

Everyone was very helpful. My only critique was the very hard landing in Seattle. We felt the G force.

It was absolutely terrible due to the mother and her two children sitting across from us. The 2.5 year old jumped up and down on the tray table. Every time the kid screamed the mom would grab the kid and scream even louder into his face. Horrible flight. The mother stayed on her phone playing while the kids were so destructive to others hanging over seats, she never once tried to comfort or discipline them. She never once said you cannot jump on tray table. Definitely the worst flight ever. It was my first time with Alaska Airlines.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

The entertainment and wifi mostly didn't work on this flight.

Boarding was tough as we had to take a bus out to the plane and walk up a lot of stairs. Difficult with heavy carry-ons that said I got an entire empty row of seats, which was excellent for an international flight. Food was very mediocre but happy with the comfort so not complaining.

Terrible entertainment system - kept freezing and audio kept cutting out. Snacks were mediocre at best for a 5 hour flight.

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

Airbus plane, nice and polite staff, entertainment even as it was a short flight.

Very nice and clean plane. Transit time between flights was tight though

Our flights got changed from United to Air Canada and our purchased seats did not get transferred so we had to pay for seats twice. I brought it up with Air Canada and they stated I had to go back and chase it with United. The united seats were $21 Canadian each and Air Canada were $56 each so we have paid $77 for each seat. Very unhappy

So far so good but food and entertainment are not available for this flight

leg space better than expected. two washrooms for one plane isn't enough.

Plane temperature was comfortable (not to hot) when boarding and waiting for takeoff.

Michael, our FA was very attentive, even finding me a chocolate brownie from economy class when the dessert selections were all dairy based. ( intolerant, not allergic so don’t usually need to order dairy free)

We tried to upgrade to economy premium but were told this was not possible as we had booked through United Airlines (and Air Canada was operating the flight). This seemed silly given there was ample space in economy premium. Additionally, we had to wait almost 1.5 hours upon arrival to taxi to the gate. Otherwise, the crew were very pleasant and passengers were friendly.

It was my first time with United Airlines and I would say it was very good experience and best of all the flights were on time. Will definitely fly with United Airlines next time.

Late departure, so I missed connection in Detroit. But Delta gave me a great hotel & breakfast. Just sorry I could not get anything from my checked baggage.

Crew was friendly. Lost our luggage and told us it’d be in later in the evening of the day we returned. It was not. Still after 5 days have not received it.

Internet on both flights was sketchy. Thus in flight entertainment was non- existent on MN - Balrimote leg.

It took 30 minutes to check in with the Westjet rep. They didn’t have enough seats and she needed to make a call… I am always “randomly” selected to be checked at security. Their “randomly “ selection system may need some updating. They treat people like criminals. It is not appropriate behavior.

Will never book through you again. Very disappointed in the notices and action taken or provided when planes are rescheduled, enough to cause missed connections

Lost my luggage. Filed a report and there is no response. Received a phone call from another airline that said they had the bag and they did not know what to do with it

Very good over all , would have been nice to have entertainment on the flight

Absolutely the worst airline I have ever taken. They lost my baggage and told me my bag tags had been cancelled. When my bags arrived days later I had to pick them up at 3:15 am. My return flight was delayed another 6 hours and they broke my bag. Westjet does nothing to try and make it a better customer experience and all the customers services representatives I spoke with were useless and incompetent. Never flying westjet again.

it's all good nothing you can do make better 😌

Very old planes. Seats were not comfortable. Air was not on during the flight leading to incredibly stuffy conditions.

Good flight, friendly crew and overall - good service on United Airlines.

Received email saying that there won’t be a seat back entertainment screen and inflight WiFi would be available. But no WiFi both ways. Say it in the email.

Somebody either kayak or Air Canada booked my flight under my preferred name Betty instead of my legal name and I almost was denied boarding my flight

flight landed late almost 1.00hr and we 4 passengers missed our connected flight to indianapolis, we need to get the hotel and taxi for the next day flight to home in indianapolis, cost us $ 300 more

Good, only discomfort was consistent turbulence through the 3 hour flight. Not sure if in companies control though.

From the kind young lady (w/Vancouver air security) who expedited our check-in to U.S. Customs to the Air Canada gate crew who gave us pre-boarding, the flight attendants who actually offered a strong hand to help me board once I had surrendered my rolling walker at the door, they are all reflections of the thoughtful, genuinely helpful Canadians we have grown to appreciate. Water and other beverages were offered throughout the flight to make sure we weren't dehydrated and the cookie was great. (Husband bought the fruit & crackers snack,) I was delighted to see three movies that I would not have otherwise seen and appreciate that AC left the last film viewable until its conclusion although the flight had actually landed. Last, mahalo to the kind strong gentleman who not offered his hand to help me debark the plane, but gave me an AC pin that I'll truly treasure.

The ground staff was so rude in Toronto airport ...very rude and did not answer simple questions, and made me look like a fool. Very rude ground staff.

My flight got delayed 5 times and then got cancelled eventually, I had to get a hotel and uber and pay for food for an extra night without any plans. It was a horrible experience, instead of Air Canada, I was flying with United .

I had a nice flight with free wifi. So I was able to message family members and stream music during my flight, which made the trip go by fast. I also enjoyed flying on there Airbus A220. The plane looked very new and it also got up to speed fast down the runway and didn't need much runway to get airborne.

Overall good experience. The flight from Toronto to Denver does not have entertainment - movies to watch.

Everything you need to know for your flight to Seattle

Information on the airport you'll fly into in Seattle

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