Find Cheap Flights from Toronto Pearson Intl to Seattle/Tacoma Intl (YYZ - SEA)

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Good to Know

Low Season:
October
Best time to beat the crowds
2%
expected price decrease
High Season:
December
Most popular time to fly
6%
expected price increase
Average Price:
$520
(avg. price over the last 2 weeks)
Good Deal:
$429
or less (round trip)

When to Book Flights from Toronto Pearson Intl to Seattle/Tacoma Intl

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $429 or less.
The cheapest flight from Toronto Pearson Intl to Seattle/Tacoma Intl was found 70 days before departure, on average.
Book at least 3 weeks before departure in order to get a below-average price.
Morning departure is around 14% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Toronto Pearson Intl to Seattle/Tacoma Intl Flights

How long does a flight from Toronto Pearson Intl to Seattle/Tacoma Intl take?
An average nonstop flight takes 7h 22m, covering a distance of 2055 miles.
How many flights are there between Toronto Pearson Intl and Seattle/Tacoma Intl?
There are 81 (nonstop) flights between Toronto Pearson Intl and Seattle/Tacoma Intl per week, averaging 10 per day.
Which airlines provide the cheapest flights from Toronto Pearson Intl to Seattle/Tacoma Intl?
In the past 3 days, the cheapest round-trip tickets were found on WestJet ($362), Delta ($376) and United ($387).
Do I need a passport to fly between Toronto Pearson Intl and Seattle/Tacoma Intl?
Yes.
Which airlines fly most frequently between Toronto Pearson Intl and Seattle/Tacoma Intl?
Air Canada (4 times daily), United (4 times daily), Brussels Airlines (2 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Toronto Pearson Intl to Seattle/Tacoma Intl?
For Toronto Pearson Intl to Seattle/Tacoma Intl, Thursday is the cheapest day to fly on average and Monday is the most expensive. Flying from Seattle/Tacoma Intl back to Toronto Pearson Intl, the best deals are generally found on Friday, with Tuesday being the most expensive.

Book cheap flights from Toronto Pearson Intl to Seattle/Tacoma Intl (round-trip)

Airports
Origin
Toronto
$362
only
$362
Destination
Seattle
$362
only
$362
Thu, Apr 5
YYZ
SEA
9h 47m
Mon, Apr 9
SEA
YYZ
7h 42m
Trip: 5 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 5224 reviews
Overall
8.1
Boarding
8.2
Comfort
7.8
Crew
8.5
Entertainment
7.1
Food
7.2
YXX
YEG
Excellent 8.0

There was not enough room for my carryon for some reason and so I had to sit with my knees up and feet on my bag. Not the worst but there should be enough carry on space for everyone.

YYZ
YOW
Excellent 9.0

I went through customs and then walked via escalators and moving walk ways to b4. It took me almost a hour. I was the last to board I am sure And had to collect my own luggage and take it from one point to another. I am 70. thank god, when I got on the plane I sat in 3a and was offered a free glass of wine. halleluya. I was exhausted Toronto airport is always a nightmare. I travel a lot and will avoid this airport if I can. I do like West jet but Delta /west jet connection means I have to take my bag from one place to another and I walked miles and could have missed my flight. I am tired. I am going to bed

YWG
YYC
Good 7.6

Everyone was very nice

It was cold on the plane!

YYZ
YYC
Okay 5.3

Quick boarding, friendly crew.

Not enough legroom.

YVR
CUN
Mediocre 3.0

Staff

Paid good money for this flight to Cancun, no wifi, and no movies etc... This is unacceptable and I'm very disappointed as a long time WestJet flyer

Mon, Apr 9
YYZ
SEA
9h 10m
Wed, Apr 11
SEA
YYZ
8h 50m
Trip: 3 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
PIT
ATL
Excellent 10.0

I have always known of airlines to offer preboarding to those military members in uniform or on official orders. Delta took it one step further and allows prior service members to board also.

JFK
CDG
Excellent 10.0

The food and the service

FLL
ATL
Excellent 8.0

Departure was right on time and we actually arrived 15 minutes early.

The inflight monitor worked but none of the data (GPS altitude or speed) was working.

PVR
MSP
Good 7.3

They have few movies selection that was good

I like being in a big space faster. And clean good service I

SLC
YYZ
Excellent 9.6

Z

Mon, Mar 19
YYZ
SEA
7h 22m
Wed, Mar 28
SEA
YYZ
6h 55m
Trip: 10 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54764 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
PHX
Mediocre 2.0

I never flew to Phoenix from Washington. I was held over at DCA for the night so I lost a full day of my vacation! Had to fly to Chicago and then to Phoenix. Was a total pain!!!

MUC
IAD
Excellent 9.6

Flexibility in changing reservation at the last minute. Excellent service on board, good food.

LAX
NRT
Good 7.6

Staff was ind and friendly. Generous

Wish there was better food. It was okay.

ZRH
EWR
Excellent 9.6

more room in the seats

movie choices were meh, but I guess that's a personal preference

LAX
ORD
Good 7.0

Crew was nice

Plane was delayed for 4 hours, should have given us miles or a voucher

Fri, Jun 1
YYZ
SEA
11h 50m
Fri, Jun 8
SEA
YYZ
8h 17m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Apr 27
YYZ
SEA
18h 36m
Mon, Apr 30
SEA
YYZ
18h 06m
Trip: 4 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
DFW
DEN
Excellent 10.0

Easy and quick boarding. Excellwnt service in first class. Comfortable ride.

Nothing. Excellent travel experience.

MKE
PHX
Okay 5.6

The crew was lovely. Really nice, and did a wonderful job with the cart service.

We ended up being deleyed about 30 minutes, in damp weather. It's not like it was snowing. Not sure why it took so long. B/c of baggage charges now everyone brings a carry on. This seems to slow the process of boarding as know passengers are asked multiple times to check baggage (for free, which is the one nice thing) before boarding b/c the overheads will be too full. Group 6 which I was in seemed like it was just the rest of the plane. Super busy, took me forever to get to my seat all the way in the back. Why don't airlines reverse board? People sitting in the back should board first. I feel like this would save so much time.

LAX
MIA
Mediocre 2.0

Couldn’t sleep because the AC wasnt working. Most miserable flight my life

The AC wasn’t working it was the most miserable flight ever

JFK
MAD
Okay 4.0

Very old plane. No personal entertainment. Very basic service.

PHL
AMS
Okay 4.6

Fo

Mon, Apr 9
YYZ
SEA
7h 25m
Sun, Apr 22
SEA
YYZ
7h 47m
Trip: 14 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 5224 reviews
Overall
8.1
Boarding
8.2
Comfort
7.8
Crew
8.5
Entertainment
7.1
Food
7.2
YWG
YYC
Good 7.6

Everyone was very nice

It was cold on the plane!

YYC
OGG
Good 7.6

Everything went well with the flight. There were some technical difficulties but nothing that was within West Jet's control.

There was one crew member that was being really passive aggressive with a mom behind us who was just trying to keep her kids quite and happy. The other crew members were sympathizing with the mom, but this one woman was just being stubborn for what seemed like no reason. If the other crew members say something is ok, I see no reason why she had to be difficult other than being spiteful.

YWG
YVR
Okay 5.3

Cramped seating configuration.

HNL
YVR
Excellent 10.0

Everything west jet is great

YVR
CUN
Mediocre 3.0

Staff

Paid good money for this flight to Cancun, no wifi, and no movies etc... This is unacceptable and I'm very disappointed as a long time WestJet flyer

Tue, Apr 10
YYZ
SEA
10h 31m
Thu, Apr 12
SEA
YYZ
6h 54m
Trip: 3 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
SLC
YYZ
Excellent 8.0

was a difficult transition from delta to west jet in Toronto and we almost missed the flight

ATL
EWR
Excellent 8.6

No LCD screen for entertainment.

PVR
MSP
Good 7.3

They have few movies selection that was good

I like being in a big space faster. And clean good service I

LAX
MCO
Excellent 10.0

I am used to flying Frontier because of cost but recently traveled Delta and boy did I feel completely spoiled! Not only did my other half get our bags for free due to his status with Delta but the amenities they offer and the comfort of the economy seats compared to other airlines is a major difference. As a chronic pain patient, if I can find a Delta flight for a little more, I will be booking with them for sure! Highly recommend them!

ATL
PIT
Excellent 9.0

Pilots and crew did an amazing job during unstable air coming into Pittsburgh. Great job.

Sat, Jun 16
YYZ
SEA
7h 36m
Wed, Jun 20
SEA
YYZ
6h 50m
Trip: 5 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54764 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
LAX
ORD
Good 7.0

Crew was nice

Plane was delayed for 4 hours, should have given us miles or a voucher

IAD
PHX
Mediocre 2.0

I never flew to Phoenix from Washington. I was held over at DCA for the night so I lost a full day of my vacation! Had to fly to Chicago and then to Phoenix. Was a total pain!!!

ORD
FLL
Okay 4.6

Flew First Class from Chicago to Fort Lauderdale. The food was a banana and the seat in front of me was broken and when it went back, it was in my lap. No one seemed to care..

PWM
IAD
Mediocre 2.0

Nothing was good about this airline with the exception of the baggage crew that finally helped me in Washington Ronald Regan Airport

My flight out of Portland was canceled and it took hours to rebook. I had to fly American Airline to Washington DCA where I roamed the airport at 9pm looking for someone from United. The crew in Portland ME told me the gate person would have a hotel for me.... The baggage crew had to help me.

DSM
DEN
Excellent 8.0

I had to check my carry on from DEN to DSM because flight was full which I was told I could pickup at gate.. at the gate the TSA agent was very rude to me as I was confused as where my bag was, which I had to to baggage claim.

Sat, Apr 28
YYZ
SEA
17h 05m
Thu, May 3
SEA
YYZ
14h 39m
Trip: 6 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
DFW
HKG
Okay 4.6

Tiny seats. Very uncomfortable for 17 hours.

LAX
CLT
Mediocre 2.6

I got there safely.

I will never fly American Airlines again. From the moment I checked in with the ticket agent to getting off the plane it was a disaster. The ticket agent was rude, hostile, and dismissive. Employees walked through the line at security forcing everyone to consolidate their belongings to one bag. I had a large wallet in my hand and was told I had to step out of line to put it in my backpack. They only allow you one bag to carry on without paying extra. At the time of boarding they announced that the overhead storage was full so even those that paid extra were still forced to check their bags. The plane was dirty, the service was slow, overall just gross. They don’t have WiFi or in flight entertainment so I paid the $20 to purchase the WiFi. It was worthless. I couldn’t stream anything, even music kept stopping to buffer. I understand it will be slower then on ground WiFi, but it was impossible to watch anything and a complete waste of money.

DFW
SAT
Okay 4.0

It was short

Completely full plane. Ridiculously tight seat pitch. Overhead bins full. 45-minute delay for a dead-heading flight crew. Long wait for checked baggage. No beverage service because of turbulence. Flight crew out of position is a management problem, don't make it an inconvenience for a 737 full of paying passengers!

DEN
ORD
Good 6.4

I'm not sure where the problem was - whether with AA or Royal Jordanian, but my luggage did not make it to Amman with me. In fact, there was a whole group of passengers traveling on American from different US cities, switching to RJ in Chicago, whose luggage did not come on the flight to Amman. My advice: be sure to pack enough for a couple of days in your carryon - and don't accept an offer to check your carryon to its final destination!

ORD
MCO
Mediocre 2.6

Horribly made me cancel flight because of 1min after 30 min cut off for boarding pass. Sat at the front desk for 29 minute arguing until my plane left.

Mon, Apr 9
YYZ
SEA
9h 59m
Fri, Jun 8
SEA
YYZ
15h 07m
Trip: 61 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 3
YYZ
SEA
8h 25m
Fri, Apr 6
SEA
YYZ
7h 47m
Trip: 4 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 5224 reviews
Overall
8.1
Boarding
8.2
Comfort
7.8
Crew
8.5
Entertainment
7.1
Food
7.2
YVR
CUN
Mediocre 3.0

Staff

Paid good money for this flight to Cancun, no wifi, and no movies etc... This is unacceptable and I'm very disappointed as a long time WestJet flyer

YXX
YEG
Excellent 8.0

There was not enough room for my carryon for some reason and so I had to sit with my knees up and feet on my bag. Not the worst but there should be enough carry on space for everyone.

HNL
YVR
Excellent 10.0

Everything west jet is great

YYZ
LAX
Okay 5.0

How is it that in a 5 hours flight you don’t be get any food for free? You have to pay for every meal. And the entertainment system isn’t only available through the west je to app but i didn’t know that until I board the plane wtf

YYC
YEG
Excellent 10.0

Smiling staff. Very helpful

No complaints

Tue, Apr 17
YYZ
SEA
7h 34m
Sat, Apr 28
SEA
YYZ
6h 53m
Trip: 12 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
PVR
MSP
Good 7.3

They have few movies selection that was good

I like being in a big space faster. And clean good service I

JFK
CDG
Excellent 10.0

The food and the service

GDL
ATL
Excellent 9.6

Expensive food

PIT
ATL
Excellent 10.0

I have always known of airlines to offer preboarding to those military members in uniform or on official orders. Delta took it one step further and allows prior service members to board also.

FLL
ATL
Excellent 8.0

Departure was right on time and we actually arrived 15 minutes early.

The inflight monitor worked but none of the data (GPS altitude or speed) was working.

Mon, Apr 23
YYZ
SEA
7h 35m
Mon, Apr 30
SEA
YYZ
8h 03m
Trip: 8 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54764 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
PHX
Mediocre 2.0

I never flew to Phoenix from Washington. I was held over at DCA for the night so I lost a full day of my vacation! Had to fly to Chicago and then to Phoenix. Was a total pain!!!

EWR
TPA
Excellent 8.0

Made up time for delayed departure

So cramped. Sat next to very obese person....spilled onto my seat

PWM
IAD
Mediocre 2.0

Nothing was good about this airline with the exception of the baggage crew that finally helped me in Washington Ronald Regan Airport

My flight out of Portland was canceled and it took hours to rebook. I had to fly American Airline to Washington DCA where I roamed the airport at 9pm looking for someone from United. The crew in Portland ME told me the gate person would have a hotel for me.... The baggage crew had to help me.

LAX
ORD
Good 7.0

Crew was nice

Plane was delayed for 4 hours, should have given us miles or a voucher

MUC
IAD
Excellent 9.6

Flexibility in changing reservation at the last minute. Excellent service on board, good food.

Tue, Apr 10
YYZ
SEA
8h 48m
Fri, Jun 8
SEA
YYZ
15h 07m
Trip: 60 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Apr 11
YYZ
SEA
8h 48m
Thu, Apr 26
SEA
YYZ
7h 47m
Trip: 16 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 5224 reviews
Overall
8.1
Boarding
8.2
Comfort
7.8
Crew
8.5
Entertainment
7.1
Food
7.2
YYZ
YYC
Okay 5.3

Quick boarding, friendly crew.

Not enough legroom.

MZT
YVR
Okay 5.3

To many delays. To Mazatlan and back to Vancouver, than to Winnipeg.

YWG
YYC
Good 7.6

Everyone was very nice

It was cold on the plane!

YYZ
YOW
Excellent 9.0

I went through customs and then walked via escalators and moving walk ways to b4. It took me almost a hour. I was the last to board I am sure And had to collect my own luggage and take it from one point to another. I am 70. thank god, when I got on the plane I sat in 3a and was offered a free glass of wine. halleluya. I was exhausted Toronto airport is always a nightmare. I travel a lot and will avoid this airport if I can. I do like West jet but Delta /west jet connection means I have to take my bag from one place to another and I walked miles and could have missed my flight. I am tired. I am going to bed

YYC
YEG
Excellent 10.0

Smiling staff. Very helpful

No complaints

Wed, Apr 18
YYZ
SEA
7h 34m
Sat, Apr 28
SEA
YYZ
6h 53m
Trip: 11 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
ATL
PIT
Excellent 9.0

Pilots and crew did an amazing job during unstable air coming into Pittsburgh. Great job.

PVR
MSP
Good 7.3

They have few movies selection that was good

I like being in a big space faster. And clean good service I

FLL
ATL
Excellent 8.0

Departure was right on time and we actually arrived 15 minutes early.

The inflight monitor worked but none of the data (GPS altitude or speed) was working.

SLC
YYZ
Excellent 9.6

Z

PIT
ATL
Excellent 10.0

I have always known of airlines to offer preboarding to those military members in uniform or on official orders. Delta took it one step further and allows prior service members to board also.

Mon, Jun 11
YYZ
SEA
8h 19m
Mon, Jun 25
SEA
YYZ
13h 27m
Trip: 15 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54764 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
NRT
Excellent 10.0

For a little over $2000 you get an economy seat non-stop from DC to Tokyo and back. Meals were good. As economy seats go, it's comfortable. Midweek the flight is about half to two thirds full. So you might be able to stretch out even!

ZRH
EWR
Excellent 9.6

more room in the seats

movie choices were meh, but I guess that's a personal preference

IAD
PHX
Mediocre 2.0

I never flew to Phoenix from Washington. I was held over at DCA for the night so I lost a full day of my vacation! Had to fly to Chicago and then to Phoenix. Was a total pain!!!

EWR
TPA
Excellent 8.0

Made up time for delayed departure

So cramped. Sat next to very obese person....spilled onto my seat

IAD
MUC
Excellent 9.3

United was flexible when I had to change my reservation at the last minute. Good service on board.

Wed, Apr 11
YYZ
SEA
8h 48m
Fri, Jun 8
SEA
YYZ
15h 07m
Trip: 59 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Apr 23
YYZ
SEA
8h 14m
Thu, May 3
SEA
YYZ
7h 52m
Trip: 11 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 5224 reviews
Overall
8.1
Boarding
8.2
Comfort
7.8
Crew
8.5
Entertainment
7.1
Food
7.2
YYZ
YUL
Mediocre 3.3

Flight crew arrived late delaying take off

HNL
YVR
Excellent 10.0

Everything west jet is great

YYC
OGG
Good 7.6

Everything went well with the flight. There were some technical difficulties but nothing that was within West Jet's control.

There was one crew member that was being really passive aggressive with a mom behind us who was just trying to keep her kids quite and happy. The other crew members were sympathizing with the mom, but this one woman was just being stubborn for what seemed like no reason. If the other crew members say something is ok, I see no reason why she had to be difficult other than being spiteful.

YYZ
YYC
Okay 5.3

Quick boarding, friendly crew.

Not enough legroom.

YVR
CUN
Mediocre 3.0

Staff

Paid good money for this flight to Cancun, no wifi, and no movies etc... This is unacceptable and I'm very disappointed as a long time WestJet flyer

Sat, Apr 21
YYZ
SEA
7h 33m
Tue, May 1
SEA
YYZ
6h 07m
Trip: 11 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
PIT
ATL
Excellent 10.0

I have always known of airlines to offer preboarding to those military members in uniform or on official orders. Delta took it one step further and allows prior service members to board also.

JFK
MCO
Excellent 8.0

Entertainment system great. Individual choices include recent movies. On board staff very nice

We had issues with baggage. Delta was supposed to transfer 4 bags to Disney for Magic Express transportation. Only 3 went. Disney tried hard to fix problem, and even gave us something to ameliorate the situation. Delta took hard line, wasn't helpful and gave nothing. It took 2 days to find bag.

LAX
MCO
Excellent 10.0

I am used to flying Frontier because of cost but recently traveled Delta and boy did I feel completely spoiled! Not only did my other half get our bags for free due to his status with Delta but the amenities they offer and the comfort of the economy seats compared to other airlines is a major difference. As a chronic pain patient, if I can find a Delta flight for a little more, I will be booking with them for sure! Highly recommend them!

MSP
CZM
Excellent 10.0

Everything went smoothly.

All was good.

JFK
CDG
Excellent 10.0

The food and the service

Show more results

Toronto Pearson Intl to Seattle/Tacoma Intl Flight Information

Flights Arrive in Seattle/Tacoma Intl
Flights Depart from Toronto Pearson Intl
Flight Price $362
Distance 2055 miles
Airlines WestJet, Delta, United, American Airlines
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.