Toronto to Seattle (YYZ–SEA) — Airlines, Schedules & Connections

YYZ Airport Page →
2,055 mi airlines charter/private 25/wk
On-time Some delays Frequent delays
Flight Schedule 7 flights Verified 56m ago
Nonstop Charter / private 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop
AS391+4
AS Alaska
73J
4:55 PM
EDT T3
7:25 PM
PDT
5h 30m
M T W T F S S
Prices
AC541+1
AC Air Canada
223
6:45 PM
EDT TT1
9:07 PM
PDT
5h 22m
40%
M T W T F S S
Prices
SN9581cs
SN Lynx Air
BCS3
6:45 PM
EDT TT1
9:08 PM
PDT
5h 23m
33%
M T W T F S S
Prices
UA8270
UA United
BCS3
6:45 PM
EDT TT1
9:08 PM
PDT
5h 23m
44%
M T W T F S S
Prices
SN9559cs
SN Lynx Air
223
8:00 AM
PDT
3:45 PM
EDT
4h 45m
M T W T F S S
Prices
AS385+4
AS Alaska
73J
8:00 AM
PDT
3:45 PM
EDT
4h 45m
30%
M T W T F S S
Prices
AC540+1
AC Air Canada
223
8:00 AM
PDT
3:39 PM
EDT
4h 39m
M T W T F S S
Prices

No flights match your filters.

No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.

✦ 1-Stop connections via 10 hubs
MSP Minneapolis 6h 54m ACAMDL AFAMAS Minneapolis (MSP) to Seattle flights
YYC Calgary 6h 59m ACAFAM ASAYEK Calgary (YYC) to Seattle flights
YVR Vancouver 7h 1m ACAFAV ACAMAS Vancouver (YVR) to Seattle flights
YEG Edmonton 7h 1m ACAFAV ASAYKE Edmonton (YEG) to Seattle flights
DTW Detroit 7h 12m ACAFAM AFASAY Detroit (DTW) to Seattle flights
SLC Salt Lake City 7h 22m ACDLWS AFAMAS Salt Lake City (SLC) to Seattle flights
ORD Chicago 7h 31m 3SAAAC AAAFAS Chicago (ORD) to Seattle flights
DEN Denver 7h 35m ACOSSN ASAYCM Denver (DEN) to Seattle flights
YYJ Victoria 7h 40m ACAVPD ASAYBA Victoria (YYJ) to Seattle flights
CVG Cincinnati / Covington 7h 48m ACUA AFASDL Cincinnati / Covington (CVG) to Seattle flights
1-STOP More options, longer trips
2-STOP Loading... Reach the hardest destinations
Toronto to Seattle
2 carriers, 25 flights/week nonstop.
2 Airlines 2,055 mi 5h 23m nonstop -3h behind

YYZ–SEA is served by 2 airlines with nonstop service. Air Canada and Alaska Airlines lead the route. The flight covers 2,055 miles in approximately 5h 23m. Beyond nonstop, 1-stop connecting options are also available.

Airline Landscape

All carriers operating nonstop YYZ–SEA service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
AC Air Canada Also: SN, UA 7 223 5h22 67% Star Alliance SN, UA
AS Alaska Airlines Also: QR 7 73J 5h30 67% Oneworld QR
Aircraft on this route
223 Airbus A220-300 – AC
73J Boeing 737-900ER – AS
BCS3 Airbus A220-300 – SN, UA
Alliance coverage
Star Alliance: AC (7 flights/wk, 50%)
Oneworld: AS (7 flights/wk, 50%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.

Weekly Schedule Pattern

Nonstop flight frequency by day of week, YYZ to SEA direction.
Mon
4
flights
Tue
4
flights
Wed
3
flights
Thu
4
flights
Fri
3
flights
Sat
4
flights
Sun
3
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
4
Nonstop flights
25
Outbound / wk
18
Return / wk

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for YYZ to SEA.
1-STOP
One-Stop Connections
82
Hubs
~6h
Fastest
~49h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
4,520
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.

On-Time Performance

What to expect at each end of your journey.
Outbound
YYZ → SEA
67%
Moderate delays possible. Allow buffer time.
Departing
67%
Arriving
86%
Return
SEA → YYZ
75%
Generally reliable. Most flights run on time.
Departing
75%
Arriving
78%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. YYZ delays → SEA delays →

Travel Essentials

Practical planning for this route.
Time Difference
-3h
Seattle is 3 hours behind Toronto.
YYZ: EDT · SEA: PDT

When it's 6:00 PM in Toronto, it's 3:00 PM in Seattle.
Distance & Flight Time
2,055 mi / 3,307 km
Nonstop flight time is approximately 5h 23m gate to gate.
Visa & Entry

Canadian citizens do not need a visa or ESTA to enter the United States for tourism or business stays up to 6 months. A valid Canadian passport is required for air travel. Land and sea crossings also accept a NEXUS card, enhanced driver's license, or FAST card. At the border, officers determine the length of stay and may ask for proof of ties to Canada and a return plan.

Getting to YYZ

The UP Express train runs from Union Station (downtown Toronto) to Terminal 1 in 25 minutes (CAD $12.35). Trains depart every 15 minutes during peak hours, every 30 minutes off-peak and overnight. Highway 427 and the 401 are heavily congested during rush hours.

Taxis and ride-hail from downtown cost CAD $50–70 and take 25–60 minutes depending on traffic. MiWay and Brampton Transit buses serve the airport from the western suburbs. Long-term parking is available in the Viscount Road lots with free shuttle service.

Getting from SEA

Link Light Rail from the airport station (inside the terminal) to downtown Seattle takes 38 minutes ($3.50). No transfers needed; trains run 5am to 1am daily.Taxis and ride-shares to downtown cost $35–55. For Bellevue and Eastside destinations (across Lake Washington), ride-share is faster than Link. Car rentals are in the consolidated rental facility; take the free shuttle from baggage claim. Sound Transit buses serve Tacoma, Renton, and Federal Way.

Seattle Climate

Marine west coast climate. Winters are mild but persistently grey and rainy (3–9°C). Snow is rare at sea level but can occur December through February, causing significant disruptions when it does. The airport sits between Seattle and Tacoma in an area that receives more fog and low cloud than downtown Seattle.

Summers are famously pleasant (18–25°C) with low humidity and mostly clear skies, one of the best flying climates in the US from June through September. The wettest months are November through January.

YYZ–SEA Quick Facts

Key statistics for the Toronto to Seattle route.
Route details
Distance2,055 mi / 3,307 km
Flight time5h 23m
Time difference-3 hours
Airlines (nonstop)2
Weekly flights25 out / 18 return
1-stop connectionsAvailable
Origin: YYZ
IATA / ICAOYYZ / CYYZ
TimezoneAmerica/Toronto
Passengers/yr46.8M
Elevation569 ft / 173 m
Destination: SEA
IATA / ICAOSEA / KSEA
TimezoneAmerica/Los_Angeles
Passengers/yr50.8M
Elevation433 ft / 132 m

Frequently Asked Questions

Common questions about YYZ to SEA flights.
Nonstop flights from Toronto Pearson International Airport to Seattle–Tacoma International Airport take about 5h 23m gate to gate. The route covers 2,055 miles.
2 airlines operate flights from YYZ to SEA: Air Canada and Alaska Airlines.
This route has daily service. Check the schedule above for departure days and times in each direction.
Yes, 1-stop connections are available, ranked by layover time. Common connecting points include Minneapolis–Saint Paul, Calgary and Vancouver.
Seattle is 3 hours behind Toronto.
Yes, return flights from SEA to YYZ are available. Use the direction toggle at the top to view the return schedule.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from YYZ to SEA

Toronto Pearson International Airport (YYZ) and Seattle–Tacoma International Airport (SEA) are connected by nonstop service from Air Canada and Alaska Airlines. With 25 weekly departures, this is a well served route.

YYZ to SEA Flight Duration and Schedule

Nonstop flight time from YYZ to SEA is about 5 hours 23 minutes gate to gate. The route covers a distance of 2,055 miles (3,307 km). There are approximately 25 weekly flights outbound and 18 return, totaling 43 flights per week in both directions.

Connecting Options and Alternatives

1-stop connecting options are also available, commonly via Minneapolis–Saint Paul, Calgary and Vancouver. Two-stop connections are also available via intermediate hubs.