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

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Toronto Pearson Intl to Seattle/Tacoma Intl Flight Information

Avg. Flight Duration 5h 02m
Flights Arrive in Seattle/Tacoma Intl
Flights Depart from Toronto Pearson Intl
Flight Price $329
Distance 2,055 miles
Airlines Delta, United Airlines, Air Canada, American Airlines, WestJet

Good to Know

Low Season:
April
Best time to beat the crowds
2%
expected price decrease
High Season:
December
Most popular time to fly
2%
expected price increase
Average Price:
$516
(avg. price over the last 2 weeks)
Good Deal:
$389
or less (round trip)

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

Estimated round-trip price
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 $389 or less.
The cheapest flight from Toronto Pearson Intl to Seattle/Tacoma Intl was found 90 days before departure, on average.
Book at least 2 weeks before departure in order to get a below-average price.
Morning departure is around 81% 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 5h 28m, covering a distance of 2055 miles.
How many flights are there between Toronto Pearson Intl and Seattle/Tacoma Intl?
There are 22 (nonstop) flights between Toronto Pearson Intl and Seattle/Tacoma Intl per week, averaging 3 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 Delta ($329), Multiple Airlines ($400) and United Airlines ($422).
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 (1 times daily), United Airlines (1 times daily), Brussels Airlines (0 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, Tuesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Seattle/Tacoma Intl back to Toronto Pearson Intl, the best deals are generally found on Wednesday, with Friday being the most expensive.

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

Airports
Origin
Toronto
$329
only
$329
Destination
Seattle
$329
only
$329
Tue, Dec 4
YYZ
Toronto Pearson Intl
SEA
Seattle/Tacoma Intl
8h 19m
Tue, Dec 11
SEA
Seattle/Tacoma Intl
YYZ
Toronto Pearson Intl
6h 50m
Trip: 8 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 21,388 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
MSP
ORD
Good 7.6

Pros: On time/ early arrival!

Cons: Most bring on 2 large carry ons slowing down boarding an de- planeing.

SEA
SMF
Excellent 10.0

Pros: The crew

Cons: The turbulence. Poor california git lits of smoke.

MCO
CVG
Excellent 8.6

Pros: Cincinnati airport was clean and efficient

Cons: MCO airport gate was a mess and did not have easy access to charge phones.

ATL
SLC
Excellent 8.0

Cons: Plane was delayed 90 minutes due to late crew. Plane was very old, only outside bins held carryons.

MDW
ATL
Excellent 10.0

Pros: I liked the cookies and juice. The interactive screen to watch something. The cleanliness. The price. On time. The service. Thank you. The excitement of flying.

Sat, Dec 1
YYZ
Toronto Pearson Intl
SEA
Seattle/Tacoma Intl
28h 35m
Wed, Dec 12
SEA
Seattle/Tacoma Intl
YYZ
Toronto Pearson Intl
9h 17m
Trip: 12 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Dec 18
YYZ
Toronto Pearson Intl
SEA
Seattle/Tacoma Intl
5h 28m
Thu, Dec 27
SEA
Seattle/Tacoma Intl
YYZ
Toronto Pearson Intl
4h 31m
Trip: 10 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 60,461 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
IAH
SAN
Good 6.0

Cons: Didn't appreciate gate change at last minute. Got to gate change only to hear announcement that it had been changed back to the gate we just landed at, with no time to grab something to eat. Then to find out we were delayed do to mechanical failure. Which still left us no time to grab something besides a bag of chips because there was nothing but mostly bars in that terminal.

EWR
FLL
Mediocre 2.0

Cons: No drink service And no free tv

FLL
IAH
Mediocre 2.0

Pros: Nothing

Cons: It’s a united flight so any expectation of being treated like a customer that actually pays for a ticket is a bridge too far.

IAH
MUC
Okay 4.3

Pros: The staff were as kind & caring as I've seen

Cons: Seats were rock hard, very uncomfortable. My flight from Munich to Kyiv on an older airbus 321 was better and my earlier flight from ElPaso on SWAir 737 were a hell of a lot better leg room seats were nice, go figure!

SFO
PDX
Excellent 10.0

Pros: Boarding, service, staff attitudes, on time and deplaning

Fri, Jan 18
YYZ
Toronto Pearson Intl
SEA
Seattle/Tacoma Intl
5h 33m
Mon, Jan 21
SEA
Seattle/Tacoma Intl
YYZ
Toronto Pearson Intl
4h 36m
Trip: 4 days
6.5GoodShow reviews
Overall 6.5 Good
Based on 72 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.9
Food
6.5
YYZ
SEA
Excellent 10.0

Pros: Friendly crew, good food and comfortable seats

YYZ
SEA
Mediocre 3.6

Pros: The price was good and connections were well-timed, and my seat-mate was a nice guy!

Cons: There was no food on a 5-hr international flight, the video screen didn't work well, and the flight attendant was having a rough day. And we took off at least 30 minutes late due to a couple of technical issues.

YYZ
SEA
Excellent 9.6

Pros: Flight was not overbooked Flight left early & arrived early No delays from AC

YYZ
SEA
Good 7.3

Pros: We liked the entertainment options and the crews were very friendly.

Cons: We didn't like not having blankets on the round-trip flights between Seattle and Toronto.

YYZ
SEA
Good 6.0

Pros: I was really tired and the plane was full but I could nap. Baggage came quickly.

Cons: No free meal because not technically an international flight I guess.

Mon, Dec 24
YYZ
Toronto Pearson Intl
SEA
Seattle/Tacoma Intl
7h 50m
Fri, Dec 28
SEA
Seattle/Tacoma Intl
YYZ
Toronto Pearson Intl
6h 24m
Trip: 5 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 35,098 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.8
Food
6.7
DFW
FLL
Mediocre 3.3

Pros: Crew was nice

Cons: No tvs that was a major let down as i was traveling with 2 kids i was really not happy about that my 6 year old just wantex to watch something and kept asking every 2 minutes if we were there yet... so please some tvs on those plains would greatly appreciated.

CAP
MIA
Good 7.6

Pros: New 737 max was comfortable

Cons: They still allow folks with way too many luggage on board

CLT
MLB
Excellent 10.0

Pros: Great Airport and easy access to the gates and transportation.

LGA
CLT
Excellent 8.0

Pros: on time

Cons: n/a

MIA
CHS
Good 7.0

Pros: Best leg room last leg.

Cons: Nothing specific.

Fri, Dec 28
YYZ
Toronto Pearson Intl
SEA
Seattle/Tacoma Intl
12h 03m
Sun, Dec 30
SEA
Seattle/Tacoma Intl
YYZ
Toronto Pearson Intl
20h 14m
Trip: 3 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 7,221 reviews
Overall
8.1
Boarding
8.2
Comfort
7.8
Crew
8.5
Entertainment
7.1
Food
7.2
YYZ
YYC
Excellent 9.0

Pros: Very comfortable, staff was courteous and professional and planes arrived ahead of schedule!

PHX
YEG
Excellent 8.0

Pros: Was a good flight. No troubles or delays

Cons: Baggage claim was down for a bit, had to wait about 29 min. Not the airlines fault

YVR
YEG
Excellent 10.0

Pros: Always great people st Westjet! Flown with other airline providers, they dont give what Westjet does. Great service everytime!!

YOW
YYZ
Good 6.3

Cons: No entertainment service.

YYC
IAH
Excellent 9.0

Pros: The crew.

Cons: No entertainment on board

Wed, Dec 5
YYZ
Toronto Pearson Intl
SEA
Seattle/Tacoma Intl
8h 19m
Wed, Dec 12
SEA
Seattle/Tacoma Intl
YYZ
Toronto Pearson Intl
6h 50m
Trip: 8 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 21,388 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
CLT
ATL
Excellent 9.6

Pros: It was on time

Cons: Plane too cold.

CDG
BOS
Excellent 10.0

Pros: Comfortable, not-overstuffed plane, friendly crew, excellent service, lots of good food & snacks. Travel as it used to be.

MDW
ATL
Excellent 10.0

Pros: I liked the cookies and juice. The interactive screen to watch something. The cleanliness. The price. On time. The service. Thank you. The excitement of flying.

MCO
CVG
Excellent 8.6

Pros: Cincinnati airport was clean and efficient

Cons: MCO airport gate was a mess and did not have easy access to charge phones.

SMF
MSP
Excellent 10.0

Pros: Everything

Cons: Nothing

Sat, Jan 19
YYZ
Toronto Pearson Intl
SEA
Seattle/Tacoma Intl
10h 45m
Wed, Jan 23
SEA
Seattle/Tacoma Intl
YYZ
Toronto Pearson Intl
8h 14m
Trip: 5 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 21,388 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
CLT
ATL
Excellent 9.6

Pros: It was on time

Cons: Plane too cold.

SEA
SMF
Excellent 9.3

Cons: The flight was very hot. Passengers near me were sweating and we Hall had thick layers on because it was cold out. I understand trying to make it warm it there’s no need to turn up the heat that high.

SEA
SMF
Excellent 10.0

Pros: The crew

Cons: The turbulence. Poor california git lits of smoke.

ATL
SLC
Excellent 8.0

Cons: Plane was delayed 90 minutes due to late crew. Plane was very old, only outside bins held carryons.

CDG
ATL
Excellent 9.3

Cons: plane was a bit old. tiny tv screen

Tue, Nov 27
YYZ
Toronto Pearson Intl
SEA
Seattle/Tacoma Intl
40h 30m
Mon, Dec 3
SEA
Seattle/Tacoma Intl
YYZ
Toronto Pearson Intl
45h 29m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Dec 1
YYZ
Toronto Pearson Intl
SEA
Seattle/Tacoma Intl
8h 14m
Mon, Dec 10
SEA
Seattle/Tacoma Intl
YYZ
Toronto Pearson Intl
6h 53m
Trip: 10 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 21,388 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
CLT
ATL
Excellent 9.6

Pros: It was on time

Cons: Plane too cold.

CDG
BOS
Excellent 10.0

Pros: Comfortable, not-overstuffed plane, friendly crew, excellent service, lots of good food & snacks. Travel as it used to be.

ATL
SLC
Excellent 8.0

Cons: Plane was delayed 90 minutes due to late crew. Plane was very old, only outside bins held carryons.

SEA
SMF
Excellent 9.3

Cons: The flight was very hot. Passengers near me were sweating and we Hall had thick layers on because it was cold out. I understand trying to make it warm it there’s no need to turn up the heat that high.

MSP
ORD
Good 7.6

Pros: On time/ early arrival!

Cons: Most bring on 2 large carry ons slowing down boarding an de- planeing.

Wed, Dec 19
YYZ
Toronto Pearson Intl
SEA
Seattle/Tacoma Intl
11h 54m
Mon, Dec 31
SEA
Seattle/Tacoma Intl
YYZ
Toronto Pearson Intl
6h 25m
Trip: 13 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 60,461 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
ORD
PDX
Mediocre 3.6

Pros: Not much

Cons: Uncomfortable seats, no leg room, no outlets for charging, only two restrooms for economy and no aboard carry on. It was overall very uncomfortable and unenjoyable. Alaska is much better

PVR
SFO
Mediocre 2.0

Pros: So many regrets for flying this dumpster fire.

COS
ORD
Good 7.3

Pros: On time flight

SFO
BZN
Excellent 10.0

Pros: Love this direct flight! So nice!

EWR
ORD
Excellent 8.6

Pros: In my opinion, United has one of the most corteous crews among all airlines. I’ve never had any problems with their flight attendants being rude or grumpy.

Sat, Dec 8
YYZ
Toronto Pearson Intl
SEA
Seattle/Tacoma Intl
7h 38m
Mon, Dec 17
SEA
Seattle/Tacoma Intl
YYZ
Toronto Pearson Intl
6h 23m
Trip: 10 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 21,388 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
MDW
ATL
Excellent 10.0

Pros: I liked the cookies and juice. The interactive screen to watch something. The cleanliness. The price. On time. The service. Thank you. The excitement of flying.

MSP
ORD
Good 7.6

Pros: On time/ early arrival!

Cons: Most bring on 2 large carry ons slowing down boarding an de- planeing.

SEA
SMF
Excellent 9.3

Cons: The flight was very hot. Passengers near me were sweating and we Hall had thick layers on because it was cold out. I understand trying to make it warm it there’s no need to turn up the heat that high.

CDG
ATL
Excellent 9.3

Cons: plane was a bit old. tiny tv screen

SMF
MSP
Excellent 10.0

Pros: Everything

Cons: Nothing

Thu, Dec 6
YYZ
Toronto Pearson Intl
SEA
Seattle/Tacoma Intl
8h 30m
Sun, Dec 16
SEA
Seattle/Tacoma Intl
YYZ
Toronto Pearson Intl
7h 00m
Trip: 11 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Dec 25
YYZ
Toronto Pearson Intl
SEA
Seattle/Tacoma Intl
9h 30m
Thu, Dec 27
SEA
Seattle/Tacoma Intl
YYZ
Toronto Pearson Intl
14h 23m
Trip: 3 days
6.5GoodShow reviews
Overall 6.5 Good
Based on 72 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.9
Food
6.5
YYZ
SEA
Excellent 9.6

Pros: Flight was not overbooked Flight left early & arrived early No delays from AC

YYZ
SEA
Okay 5.6

Pros: Flight crews were great.

Cons: Ground crews and Air Canada's booking system caused no end of trouble. Weather started the problem but human error meant an incredibly stressful rebooking, requiring three agents at ticketing plus the IT help desk just to figure out what the agent I had reached over the phone had done. In Quebec City not nearly enough agents to check bags; huge lines, people being shunted to the front so they wouldn't miss their flights.

YYZ
SEA
Good 6.0

Pros: I was really tired and the plane was full but I could nap. Baggage came quickly.

Cons: No free meal because not technically an international flight I guess.

YYZ
SEA
Good 7.3

Pros: We liked the entertainment options and the crews were very friendly.

Cons: We didn't like not having blankets on the round-trip flights between Seattle and Toronto.

YYZ
SEA
Excellent 8.6

Pros: Our flight attendant, Sabrina, was fantastic. Quite friendly and helpful. You can tell she loves her job. She patiently answered questions and made the flight really pleasant.

Wed, Dec 12
YYZ
Toronto Pearson Intl
SEA
Seattle/Tacoma Intl
9h 11m
Sat, Dec 15
SEA
Seattle/Tacoma Intl
YYZ
Toronto Pearson Intl
6h 57m
Trip: 4 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 21,388 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
SEA
SMF
Excellent 9.3

Cons: The flight was very hot. Passengers near me were sweating and we Hall had thick layers on because it was cold out. I understand trying to make it warm it there’s no need to turn up the heat that high.

MSP
MCO
Excellent 8.6

Pros: Almost everything

Cons: Could not get entertainment interface with my tablet to work, especially since I paid extra to do so. Could not access live TV on my seat/chair screen.

MCO
CVG
Excellent 8.6

Pros: Cincinnati airport was clean and efficient

Cons: MCO airport gate was a mess and did not have easy access to charge phones.

MDW
ATL
Excellent 10.0

Pros: I liked the cookies and juice. The interactive screen to watch something. The cleanliness. The price. On time. The service. Thank you. The excitement of flying.

IND
CDG
Excellent 8.6

Pros: It is good to be able to go straight to Paris without connecting.

Cons: Boarding was a bit slow.

Sun, Dec 23
YYZ
Toronto Pearson Intl
SEA
Seattle/Tacoma Intl
19h 47m
Mon, Dec 31
SEA
Seattle/Tacoma Intl
YYZ
Toronto Pearson Intl
4h 31m
Trip: 9 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 35,098 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.8
Food
6.7
LGA
CLT
Excellent 8.0

Pros: on time

Cons: n/a

IAH
CLT
Excellent 8.0

Pros: Punctuality

Cons: NA

MIA
CHS
Good 7.0

Pros: Best leg room last leg.

Cons: Nothing specific.

YVR
LAX
Excellent 10.0

Pros: Friendly staff made people feel safe even during turbulence.

DCA
PHX
Good 6.0

Cons: No tv, entertainment, charging

Wed, Dec 19
YYZ
Toronto Pearson Intl
SEA
Seattle/Tacoma Intl
11h 54m
Fri, Dec 28
SEA
Seattle/Tacoma Intl
YYZ
Toronto Pearson Intl
7h 56m
Trip: 10 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 60,461 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
FLL
IAH
Mediocre 2.0

Pros: Nothing

Cons: It’s a united flight so any expectation of being treated like a customer that actually pays for a ticket is a bridge too far.

ORD
DSM
Good 7.6

Cons: Wi-Fi, as usual, was not working. Plus, there were no screens in the seat, so passengers have to rely on their own smartphones/tablets/magazines/books to keep entertained.

COS
ORD
Good 7.3

Pros: On time flight

EWR
FLL
Mediocre 2.0

Cons: No drink service And no free tv

EWR
ORD
Excellent 8.6

Pros: In my opinion, United has one of the most corteous crews among all airlines. I’ve never had any problems with their flight attendants being rude or grumpy.

Sun, Dec 23
YYZ
Toronto Pearson Intl
SEA
Seattle/Tacoma Intl
12h 02m
Fri, Jan 4
SEA
Seattle/Tacoma Intl
YYZ
Toronto Pearson Intl
6h 24m
Trip: 13 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 7,221 reviews
Overall
8.1
Boarding
8.2
Comfort
7.8
Crew
8.5
Entertainment
7.1
Food
7.2
YOW
YYZ
Good 6.3

Cons: No entertainment service.

YYJ
YLW
Mediocre 3.3

Pros: Crew

Cons: Poor service before boarding.

SJD
YYC
Excellent 8.0

Pros: Direct flight

Cons: Screaming crying children

YYC
IAH
Excellent 9.0

Pros: The crew.

Cons: No entertainment on board

YVR
YYZ
Good 7.3

Cons: Way too cramped. Only 1 washroom.

Wed, Nov 21
YYZ
Toronto Pearson Intl
SEA
Seattle/Tacoma Intl
40h 26m
Mon, Nov 26
SEA
Seattle/Tacoma Intl
YYZ
Toronto Pearson Intl
34h 07m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Dec 23
YYZ
Toronto Pearson Intl
SEA
Seattle/Tacoma Intl
19h 47m
Tue, Jan 1
SEA
Seattle/Tacoma Intl
YYZ
Toronto Pearson Intl
8h 01m
Trip: 10 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 35,098 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.8
Food
6.7
CAP
MIA
Good 7.6

Pros: New 737 max was comfortable

Cons: They still allow folks with way too many luggage on board

JFK
MIA
Good 6.6

Pros: Why do I get asked 3x times if I am ready able to assist with a verbal yes. I get asked at baggage check in, again when I board by gate agent, and then again by flight crew. Is this FAA regulations to ask 3 Times?

Cons: Ask me 1 time

LGA
CLT
Excellent 8.0

Pros: on time

Cons: n/a

IAH
CLT
Excellent 8.0

Pros: Punctuality

Cons: NA

DCA
PHX
Good 6.0

Cons: No tv, entertainment, charging

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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.