$143 Find Cheap Flights from Canada to Seattle - Compare and Save

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 6/25. 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, 0 bags

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These are the airlines KAYAK users have selected most often from within our search results for flights to Seattle
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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

Fri, Nov 6 - Sat, Nov 14
Air Canada Logo
7:15 pm - 8:57 pm
YLW
-
SEA
2h 42m
1 stop
Air Canada Logo
3:15 pm - 9:34 pm
SEA
-
YLW
5h 19m
1 stop
$245Air Canada
Sat, Jul 18 - Tue, Jul 21
WestJet Logo
11:15 am - 9:00 pm
YVR
-
SEA
9h 45m
2 stops
WestJet Logo
10:30 am - 7:10 pm
SEA
-
YVR
8h 40m
2 stops
$247WestJet
Sat, Oct 17 - Sun, Oct 18
Air Canada Logo
1:15 pm - 2:22 pm
YVR
-
SEA
1h 07mnonstop
Air Canada Logo
5:40 am - 6:47 am
SEA
-
YVR
1h 07mnonstop
$248Air Canada
Sat, Jul 18 - Tue, Jul 21
WestJet Logo
11:15 am - 9:00 pm
YVR
-
SEA
9h 45m
2 stops
WestJet Logo
10:30 am - 5:40 pm
SEA
-
YVR
7h 10m
1 stop
$249WestJet
Thu, Jul 9 - Thu, Jul 16
WestJet Logo
11:15 am - 6:45 pm
YVR
-
SEA
7h 30m
2 stops
WestJet Logo
7:00 am - 1:35 pm
SEA
-
YVR
6h 35m
2 stops
$250WestJet
Thu, Jul 9 - Sun, Jul 12
WestJet Logo
7:55 pm - 9:00 pm
YYC
-
SEA
2h 05mnonstop
WestJet Logo
7:35 pm - 10:15 pm
SEA
-
YYC
1h 40mnonstop
$250WestJet
Sat, Jul 18 - Tue, Jul 21
WestJet Logo
2:30 pm - 9:00 pm
YVR
-
SEA
6h 30m
1 stop
WestJet Logo
10:30 am - 3:55 pm
SEA
-
YVR
5h 25m
1 stop
$251WestJet
Thu, Jul 9 - Sun, Jul 12
WestJet Logo
7:55 pm - 9:00 pm
YYC
-
SEA
2h 05mnonstop
WestJet Logo
7:35 pm - 10:15 pm
SEA
-
YYC
1h 40mnonstop
$251WestJet
Fri, Oct 2 - Sun, Oct 4
United Airlines Logo
6:05 pm - 10:42 pm
YLW
-
SEA
4h 37m
1 stop
United Airlines Logo
5:40 am - 10:27 am
SEA
-
YLW
4h 47m
1 stop
$270United Airlines
Wed, Sep 23 - Sun, Sep 27
United Airlines Logo
7:20 pm - 9:36 am
YTZ
-
SEA
17h 16m
1 stop
United Airlines Logo
5:21 pm - 10:06 am
SEA
-
YTZ
13h 45m
2 stops
$373United Airlines
Booking Insights

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 5 days.

In the last 5 days, the cheapest flight deal to Seattle was found on the route from Vancouver, at $245 return. The most popular connection is from Calgary to Seattle and KAYAK users have found round-trip deals for as low as $250 in the last 5 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 $492 on average. The cheapest price found on KAYAK in the last 2 weeks cost $135 and departed from Calgary. The most popular routes on KAYAK are Vancouver to Seattle which costs $768 on average, and Toronto to Seattle, which costs $756 on average.

See prices from:

What is the cheapest day to fly to Seattle?

The average price of all round-trip flights to Seattle clicked on KAYAK for each day over the last 12 months.

Based on KAYAK data, the cheapest day to fly to Seattle is Thursday where round-trip tickets can be as cheap as $510. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $898 on average.

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 round-trip 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 January, where tickets cost $63 on average for return flights. On the other hand, the most expensive months are April and December, where the average cost of tickets from Canada is $621 and $557 respectively. For one-way flights, the best month to travel is February with an average price of $63.

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

The average price for all round-trip flights to Seattle depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Seattle is generally in the evening, when round-trip flights cost $445 on average. The most expensive time of day to fly to Seattle is generally in the morning, which is peak travel time and where the average cost of a ticket is $620.

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 Calgary $328 round-trip, from Vancouver Intl Airport $350 round-trip, from Victoria $516 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 4 weeks before departure, which saves you about 55% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$143
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from Vancouver to Seattle

Flights from Canada to Seattle: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Canada to Seattle 
DaphneFlew with Alaska Airlines
YLW
-
SEA
Feb 2025
Often can get your carryon checked for free at the gate.
ColleenFlew with WestJet
YYC
-
SEA
Oct 2024
Don't pack a bag unless you want to pay more than the contents are worth to get it there and back.
Verified travelerFlew with Air Canada
YUL
-
SEA
May 2024
The flight itself is fine as long as there is entertainment and food service I would recommend bringing your own cushion to sit on the seats are just not comfortable. Padding is virtually none
Verified travelerFlew with Air Canada
YVR
-
SEA
Dec 2023
Make sure you are aware of the process to leave the "International" part of the airport and how to enter the "US" part of the airport. To get your luggage and recheck your luggage, make sure that is clear to you.

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 5 days, the cheapest flight deal to Seattle was found on the route from Vancouver, at $245 return. The most popular connection is from Calgary to Seattle and KAYAK users have found round-trip deals for as low as $250 in the last 5 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 $492. The cheapest price found on KAYAK in the last 2 weeks cost $135 and departed from Calgary Airport.

  • 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.

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 $258, from Vancouver Intl $641
  • 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.

Reviews of the 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.
7.9
Alaska AirlinesOverall score based on 12480 reviews
7.8Comfort
7.0Food
7.0Entertainment
8.1Boarding
8.5Crew
Airline reviews

For a 5hrs flight a simple meal should provided instead of snacks only

6.0 GoodIvonny, Jun 2026
RDU - SEA
Read more Alaska Airlines reviews

For a 5hrs flight a simple meal should provided instead of snacks only

Missoula is a great airport. Desk and gate crews were very helpful and friendly

Other than delaying take off by an hour, the flight was smooth. Crew were kind and supportive, and made sure we were always considered as a priority.

Flight was on time. My pre-ordered meal came as expected.

Excellent flights. On time. Good service. Better than expected food. Comfortable seats. Too much dependent on personal phones for information and entertainment.

Flight was delayed and we were left in the plane with planed turned off, took so long to get to destination and luggages were lost. Such a hectic travel

The flight was delayed out of BIL so many times that I was not able to make my connection. I was rebooked for the next day, losing a full day of my trip. I still have not been compensated as promised.

Flight was delayed, but not be a lot. Crew at the departure gate was friendly. Flight was filled with turbulence, enough to concern my husband. Snacks were delivered to rows in front of us but attendant stopped handing out snacks when she got to our row. Team was efficient but lackadaisical. Usually on board crews are more animated and friendly. No onboard entertainment and no seatback video screens for a six hour flight. Landing was a bit rough. We were told the wrong turnstile for luggage.

2 hour delay. Then some luggage was unloaded at 1baggage claim #7 then without notice the baggage claim was changed to #12. No one informed the passengers they were changing baggage claim turnstile. Several of us waited for 90 minutes after the 1st turnstile stopped and changed to other flights luggage.

Many gate changes in Seattle and mechanical problems on plane which resulted in a new gate change. Both flights, from Seattle to Detroit and Seattle to Eugene resulted in a lot of walking and tram taking.

Only beverages were offered to first class and I thought the flight attendant could have also served the Delta Comfort as well instead of sitting down and staring at her phone and walking past all of us to the back of the plane to charge her phone more. There was a complete lack of turbulence and was safe enough for flights attendant to walk around in the front of the plane, collect trash and serve a few people water and turn off the seat belt light. Also didn’t enforce people putting their seats into the upright position and allowed two passengers to remain reclined during landing. They seemed out to lunch completely. Usually my experience on Delta is much better.

The seats were really comfortable. Flight crew were friendly with passengers. Overall was a great flight.

Arrived early, comfortable seats (Comfort+). Mediocre food, poor wifi (intermittent).

Long story short, it was one of the better flight experiences I've had in some time when compared with other airlines.

Flight was great! This flight from Atlanta was even better than when I paid for Comfort from SNA to Atlanta.

Much better than I expected. I had an economy ticket so I was really happy the flight was so comfy and the service so generous. Passengers were all polite too.

Round trip flight to Canada and back to the US was smooth and efficient.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

It was fine. 55 minute flight. No snacks or beverage service offered. Boarding went smoothly and my walker was waiting for me on the jet way.

My flight was cencaled due with the bad weather on Sunday the crew was poorly mistaken my luggage supposed depart with my flight instead I didn’t have my luggage for almost 3 days the website is poorly respond to my complain until I have someone to do it my connection smooth their not even respon or email me even the have my luggage

Boarding was smooth and efficient. The only food was some pretzels, but it was a short flight. Not much to order if you were hungry.

Crew were welcoming, accommodating and they worked hard to find places for all carry on.

Seats very comfortable; service efficient and pleasant; flight was on-time; boarding organized.

Starlink is great Crew was polite Business class didn’t get a welcome drink just water and snacks were ok

very average service no complimentary alcoholics drinks unlike other airlines such as Porter airlines No decent seats available during check-in time the day before

Good but airlines getting smaller. I didn't like the meal but the service was fine. Flight was fine and luggage arrived. So good.

They were fast and I like how they used to entertainment system to play video about the safety.

Smooth and easy boarding, comfortable for the entire 5 hour flight, and the seat back entertainment was great! I appreciated all the features, from location info and maps, movies, the ability to connect with Bluetooth headphones, and good selection of movies. Food was good, normal airline snacks (I didn’t purchase anything)

Hopped on time for the flight only to get deplaned and delayed another 2.5 hours.

Given I (and I’m assuming most people) have both carry in and a personal item included in their fare, I find it very unfair that on neither of my flights I was able to use the overhead for my small backpack because they were completely rammed with luggage, people personal items, jackets, hats and other items. So the only item I brought in had to be stuffed under my seat while they had their leg room and sat comfortable with all of their items in the overhead. This has to stop because I was uncomfortable on both flights when I only had one smaller item that could not be checked due to its contents (medication etc). Plenty of people could have checked theirs but chose not to and then took up the space allotment for 2 people.

I loved the fact it was on time and it was a smooth flight to my destination.

Service was okay except attendant over served alcohol to passenger and passenger got tipsy and made me uncomfortable

Could not make the flight. No one would help us at all

The agents at the Kelowna YLW airport were really grumpy. Same with oversized baggage person. Staff on the plane were great.

Flight was early. That’s the only positive I can share. I paid for wifi on the flight and it didn’t allow me to use any streaming services so it was a waste of $20. West Jet also lost my ski equipment on my way to a ski vacation. They told me it would be delivered to the hotel as soon as it arrived at the airport. It was never delivered. I had to pick it up at the airport on my way home. I am completely disgusted with my experience on west jet

The window seat on the emergency row was too small. I had a different seat booked and they moved me. My seat remained open. It was very uncomfortable.

Experience was good, the wifi hook up is somewhat tough

Great flight, great landing, nice staff. Our seats were a little cramped.

I will not be flying with westjet again. I was uncomfortable in my seat. The position made my back hurt so bad. My wife was able to fit the seatbelt around her with out an extension but was unable to put the tray table down or fit in the seat for that matter. Our bag was smashed and I spent two hours trying to fill out the application for a damaged bag before I gave up. The 80 photos I took would not work and nothing telling me the format to upload them as.. I made the mistake of unpacking the bag before taking photos so no claim for me. Next trip to Canada I will have to use air Canada.

Overall good experience. The wait for baggage at our destination was quite long, but other than that everything was good as expected

gave me complimentary food as the flight was not full and was attentive to my needs

It was a nice and smooth trip. Gave a friendly environment throughout the journey.

Meal and drink service was good. Old plane with old business class seats were quite disappointing

The flight was smooth, the plane was spacious and clean, the staff was kind and the food was decent.

Pretzels were a bit dry and dusty, however it is nice to have a choice between sweet and savory snacks.

Flight crew was great, and even the crew for checking bags! I had a question for a friend of mine flying tomorrow and the man I talked to was awesome and answered my questions and looked up things for me when he didn’t have to! I was able to give her current & accurate info for her flight and she was so appreciative too!!

Never flown with Air Canada before, but it's now a top choice! Loved it!

Horrible crew, horrible seats configuration, ridiculous space in the toilets, Air Canada is no longer a option.

Crew at gate and onboard were just very OK, not very friendly and honestly seemed bothered to be there. I will give a shout out to still selling headphones for those who forgot.

Flight Boarded and departed on time. The Flight crew was very friendly and accommodating. The aircraft was clean and free from clutter and debris. I will be happy to recommend Air Canada to my friends and relatives for their flight needs. They were very attentive and responsive to our needs as Senior citizens.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Lynnwood
Centralia
Fife
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Aberdeen
Edmonds
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Monroe
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Everything you need to know for your flight to Seattle

Information on the airport you'll fly into in Seattle