FlightsFrom Seattle

To Toronto

Cheap Flights from Seattle to Toronto

Browse current best options from Seattle. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

Seattle

RatePunk searches hundreds of travel sites at once for deals on flights to Toronto

Prices updated 24 days ago

486,190 searches this week

171 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated May 29, 2026.)

Today’s best flight deals from Seattle to Toronto

Explore current cheapest deals departing from Seattle to Toronto

October 23 - October 29

Cheapest
Best

SEA - Toronto

$370

$340

Round trip

October 1 - October 5

SEA - Toronto

$364

$343

Round trip

October 13 - October 27

SEA - Toronto

$354

$346

Round trip

September 22 - September 29

SEA - Toronto

$354

$348

Round trip

September 23 - September 30

SEA - Toronto

$354

$349

Round trip

September 25 - September 30

SEA - Toronto

$361

$351

Round trip

November 12 - November 26

SEA - Toronto

$341

$351

Round trip

November 20 - November 23

SEA - Toronto

$355

$353

Round trip

September 21 - September 29

Earliest

SEA - Toronto

$340

$354

Round trip

October 15 - October 21

SEA - Toronto

$370

$355

Round trip

Unlock all 500+ flight deals to Toronto and get alerts when great deals appear

Route Intelligence — 486,190 Searches this Week

Insights for flights from Seattle to Toronto

A typical journey from Seattle to Toronto takes about 14h 35m, including connections. Since most itineraries connect at least once, this duration reflects the overall travel time you can expect. This route covers a distance of 3307 km, classifying it as a medium-haul flight.
For travelers seeking cheap flights from Seattle to Toronto, prices typically range from $259–$589, with a median of $389. Right now, fares are above the typical level, and only 1% of recent fares were classified as a good price. New deals appear almost daily for this route, so setting up a price alert can be beneficial.
When is the cheapest time to fly from Seattle to Toronto? The most affordable month to fly is typically April, with a median fare of $232. Following closely, March also offers competitive prices, with a median of $276, and May presents another good option at a median of $289.
Only 17.8% of recent fares for flights from Seattle to Toronto are non-stop. This means that most itineraries connect at least once, with the typical number of connections being 2 when a stopover is involved.

How much is a round trip from Seattle to Toronto

Regular price: $311 - $440

Prices for flights from Seattle to Toronto are currently within the regular range.

The regular price range for flights from Seattle to Toronto is between $311 and $440. The current lowest deal is $340 with WestJet for travel from Oct 23-Oct 29.

now $340

Low $311

High $440

The cheapest time to fly from Seattle to Toronto

The cheapest month to fly from Seattle to Toronto is April, with a median price of $232. The most expensive month is July, with a median price of $590. Prices are generally lower from January to September.

April

Cheapest

Flights from $232

July

Most Expensive

Flights from $590

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Direct flights from Seattle to Toronto

Airline logo

Alaska Airlines, Inc.

Last-minute flights going from Seattle to Toronto

Wed, Jul 1

⌛ Last-Minute

SEA - Toronto

WestJet

Seattle (SEA) - Toronto (YYZ)

WestJet

$358

$383

One-way

Thu, Jul 2

⌛ Last-Minute

SEA - Hamilton

WestJet

Seattle (SEA) - Hamilton (YHM)

WestJet

$493

$400

One-way

Thu, Jul 2

⌛ Last-Minute

SEA - Hamilton

WestJet

Seattle (SEA) - Hamilton (YHM)

WestJet

$529

$495

One-way

Sat, Jul 4

⌛ Last-Minute

SEA - Hamilton

WestJet

Seattle (SEA) - Hamilton (YHM)

WestJet

$485

$407

One-way

Tue, Jul 7

⌛ Last-Minute

SEA - Toronto

WestJet

Seattle (SEA) - Toronto (YYZ)

WestJet

$309

$383

One-way

Tue, Jul 7

⌛ Last-Minute

SEA - Toronto

WestJet

Seattle (SEA) - Toronto (YYZ)

WestJet

$356

$385

One-way

Biggest price drops on these dates for flights from Seattle to Toronto

2 nights

Aug 11 - Aug 13

$573  →  $389

32%

3 nights

Aug 19 - Aug 22

$566  →  $390

31%

6 nights

Aug 21 - Aug 27

$544  →  $384

29%

4 nights

Aug 18 - Aug 22

$564  →  $406

28%

Popular Airports to fly from Seattle to Toronto

Seattle - Toronto route insights

💸 Price insights

Recent fares are above the typical level

Recent fares from Seattle to Toronto are currently above the typical level for this route.

📅 Best time to fly

April is historically the cheapest month

Historically, April is the cheapest month to fly from Seattle to Toronto, with a median price of $232.

⏱️ Flight duration

Median flight time is 14h 35m

The median flight time for this route is 14 hours and 35 minutes, typically with two stopovers.

✈️ Airlines & availability

Connecting flights are dominant

Only 17.8% of recent deals are direct, making connecting flights the dominant option.

🏆 Airline highlight

WestJet offers a recent deal at $340

A recent deal from WestJet for Seattle to Toronto was found at $340.

🎯 Booking tip

Deals are frequent for this route

Deals for flights from Seattle to Toronto are frequent, with over 1 deal per day.

Seattle main airports to depart from

Seattle–Tacoma International (SEA)

Cheapest

Seattle–Tacoma International Airport is a primary option for flights from Seattle to Toronto.

📍 ~20 km from Seattle city center (reachable by car)

💸 Flights from ~$340

Boeing Field (BFI)

Boeing Field offers an alternative departure point for travelers flying from Seattle to Toronto.

📍 ~10 km from Seattle city center (reachable by car)

💸 Flights from ~$685

Kenmore Air Harbor Seaplane Base (LKE)

Kenmore Air Harbor Seaplane Base provides another option for flights from Seattle to Toronto.

📍 ~5 km from Seattle city center (reachable by car)

💸 Flights from ~$618

Toronto main airports to arrive at

Toronto Pearson International (YYZ)

Cheapest

Toronto Pearson International Airport is a good option for flights from Seattle to Toronto.

📍 ~20 km from Toronto city center (reachable by car)

💸 Flights from ~$340

Billy Bishop Toronto City (YTZ)

Billy Bishop Toronto City Airport is a convenient choice for arriving in Toronto from Seattle.

📍 ~5 km from Toronto city center (reachable by car)

💸 Flights from ~$447

Airports nearby Toronto used as alternative

John C. Munro Hamilton International (YHM)

This airport is a useful domestic alternative for Canadian travelers, avoiding international border crossings.

📍 ~60 km from Toronto (reachable by car)

💸 Flights from ~$412

Buffalo Niagara International (BUF)

Cheapest

This airport often offers lower fares for transborder travelers, but requires an international border crossing.

📍 ~105 km from Toronto (reachable by car)

💸 Flights from ~$270

Region of Waterloo International (YKF)

This airport is a convenient domestic alternative west of Toronto, avoiding congestion at main airports.

📍 ~90 km from Toronto (reachable by car)

💸 Flights from ~$382

London International (YXU)

This regional airport offers full-service connections and easier navigation than Toronto's main airports.

📍 ~180 km from Toronto (reachable by car)

💸 Flights from ~$381

Niagara Falls International (IAG)

This airport is very close to the Canadian border and offers ultra-low-cost carrier options to specific US destinations.

📍 ~85 km from Toronto (reachable by car)

💸 Flights from ~$510

Business & First Class Flight Deals to Toronto

Discover luxury on the budget with premium cabin class on flights from Seattle to Toronto.

Elite

Best Elite deals to Toronto

Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.

From SEA

Elite

Nov 22

Toronto, Canada

91% AI deal score

$2,244

$1,106

Save $1,138

From SEA

Elite

Nov 22

Toronto, Canada

91% AI deal score

$2,222

$1,106

Save $1,116

From SEA

Elite

Nov 22

Toronto, Canada

91% AI deal score

$2,239

$1,106

Save $1,133

From SEA

Elite

Oct 30

Toronto, Canada

91% AI deal score

$2,288

$1,106

Save $1,182

From SEA

Elite

Oct 24

Toronto, Canada

91% AI deal score

$2,287

$1,106

Save $1,181

From SEA

Elite

Oct 28

Toronto, Canada

91% AI deal score

$2,287

$1,106

Save $1,181

From SEA

Elite

Oct 28

Toronto, Canada

91% AI deal score

$2,287

$1,106

Save $1,181

From SEA

Elite

Oct 29

Toronto, Canada

91% AI deal score

$2,288

$1,106

Save $1,182

From SEA

Elite

Oct 24

Toronto, Canada

91% AI deal score

$2,287

$1,106

Save $1,181

From SEA

Elite

Oct 28

Toronto, Canada

91% AI deal score

$2,287

$1,106

Save $1,181

From SEA

Elite

Oct 31

Toronto, Canada

91% AI deal score

$2,286

$1,106

Save $1,180

From SEA

Elite

Oct 31

Toronto, Canada

91% AI deal score

$2,286

$1,106

Save $1,180

From SEA

Elite

Oct 30

Toronto, Canada

91% AI deal score

$2,288

$1,106

Save $1,182

From SEA

Elite

Oct 31

Toronto, Canada

91% AI deal score

$2,286

$1,106

Save $1,180

From SEA

Elite

Oct 29

Toronto, Canada

91% AI deal score

$2,288

$1,106

Save $1,182

From SEA

Elite

Oct 30

Toronto, Canada

91% AI deal score

$2,288

$1,106

Save $1,182

From SEA

Elite

Oct 31

Toronto, Canada

91% AI deal score

$2,271

$1,106

Save $1,165

From SEA

Elite

Oct 28

Toronto, Canada

91% AI deal score

$2,287

$1,106

Save $1,181

From SEA

Elite

Oct 29

Toronto, Canada

91% AI deal score

$2,288

$1,106

Save $1,182

From SEA

Elite

Oct 30

Toronto, Canada

91% AI deal score

$2,288

$1,106

Save $1,182

From SEA

Elite

Oct 29

Toronto, Canada

91% AI deal score

$2,288

$1,106

Save $1,182

From SEA

Elite

Nov 19

Toronto, Canada

91% AI deal score

$2,222

$1,106

Save $1,116

From SEA

Elite

Oct 24

Toronto, Canada

91% AI deal score

$2,287

$1,107

Save $1,180

From SEA

Elite

Oct 30

Toronto, Canada

91% AI deal score

$2,393

$1,130

Save $1,263

From SEA

Elite

Oct 01

Toronto, Canada

91% AI deal score

$2,423

$1,259

Save $1,164

From SEA

Elite

Oct 01

Toronto, Canada

91% AI deal score

$1,351

$696

Save $655

From SEA

Elite

Sep 27

Toronto, Canada

91% AI deal score

$1,354

$696

Save $658

From SEA

Elite

Oct 05

Toronto, Canada

91% AI deal score

$1,385

$696

Save $689

From SEA

Elite

Oct 01

Toronto, Canada

91% AI deal score

$1,368

$696

Save $672

From SEA

Elite

Oct 05

Toronto, Canada

91% AI deal score

$1,406

$696

Save $710

From SEA

Elite

Oct 02

Toronto, Canada

91% AI deal score

$1,368

$696

Save $672

From SEA

Elite

Oct 06

Toronto, Canada

91% AI deal score

$1,400

$696

Save $704

From SEA

Elite

Oct 04

Toronto, Canada

91% AI deal score

$1,400

$696

Save $704

From SEA

Elite

Oct 04

Toronto, Canada

91% AI deal score

$1,406

$696

Save $710

From SEA

Elite

Oct 19

Toronto, Canada

91% AI deal score

$1,398

$696

Save $702

From SEA

Elite

Sep 29

Toronto, Canada

91% AI deal score

$1,354

$696

Save $658

From SEA

Elite

Sep 30

Toronto, Canada

91% AI deal score

$1,352

$696

Save $656

From SEA

Elite

Sep 30

Toronto, Canada

91% AI deal score

$1,382

$696

Save $686

From SEA

Elite

Oct 19

Toronto, Canada

91% AI deal score

$1,404

$696

Save $708

From SEA

Elite

Sep 29

Toronto, Canada

91% AI deal score

$1,438

$696

Save $742

From SEA

Elite

Sep 28

Toronto, Canada

91% AI deal score

$1,353

$696

Save $657

From SEA

Elite

Sep 27

Toronto, Canada

91% AI deal score

$1,354

$696

Save $658

From SEA

Elite

Nov 05

Toronto, Canada

90% AI deal score

$2,053

$1,106

Save $947

From SEA

Elite

Nov 19

Toronto, Canada

90% AI deal score

$2,001

$1,106

Save $895

From SEA

Elite

Nov 17

Toronto, Canada

90% AI deal score

$2,102

$1,106

Save $996

From SEA

Elite

Nov 05

Toronto, Canada

90% AI deal score

$2,053

$1,106

Save $947

From SEA

Elite

Nov 08

Toronto, Canada

90% AI deal score

$2,040

$1,106

Save $934

From SEA

Elite

Nov 19

Toronto, Canada

90% AI deal score

$2,102

$1,106

Save $996

From SEA

Elite

Nov 13

Toronto, Canada

90% AI deal score

$1,993

$1,106

Save $887

From SEA

Elite

Nov 07

Toronto, Canada

90% AI deal score

$2,053

$1,106

Save $947

From SEA

Elite

Nov 17

Toronto, Canada

90% AI deal score

$2,001

$1,106

Save $895

From SEA

Elite

Nov 17

Toronto, Canada

90% AI deal score

$1,997

$1,106

Save $891

From SEA

Elite

Nov 18

Toronto, Canada

90% AI deal score

$2,166

$1,106

Save $1,060

From SEA

Elite

Nov 16

Toronto, Canada

90% AI deal score

$1,997

$1,106

Save $891

From SEA

Elite

Nov 16

Toronto, Canada

90% AI deal score

$1,993

$1,106

Save $887

From SEA

Elite

Nov 18

Toronto, Canada

90% AI deal score

$1,997

$1,106

Save $891

From SEA

Elite

Nov 18

Toronto, Canada

90% AI deal score

$2,001

$1,106

Save $895

From SEA

Elite

Nov 15

Toronto, Canada

90% AI deal score

$1,997

$1,106

Save $891

From SEA

Elite

Oct 22

Toronto, Canada

90% AI deal score

$2,172

$1,130

Save $1,042

From SEA

Elite

Oct 24

Toronto, Canada

90% AI deal score

$2,141

$1,130

Save $1,011

From SEA

Elite

Oct 01

Toronto, Canada

90% AI deal score

$2,086

$1,193

Save $893

From SEA

Elite

Sep 10

Toronto, Canada

90% AI deal score

$2,278

$1,259

Save $1,019

From SEA

Elite

Oct 06

Toronto, Canada

90% AI deal score

$1,314

$696

Save $618

From SEA

Elite

Oct 01

Toronto, Canada

90% AI deal score

$1,323

$696

Save $627

From SEA

Elite

Oct 05

Toronto, Canada

90% AI deal score

$1,313

$696

Save $617

From SEA

Elite

Sep 15

Toronto, Canada

90% AI deal score

$1,352

$696

Save $656

From SEA

Elite

Oct 07

Toronto, Canada

90% AI deal score

$1,315

$696

Save $619

From SEA

Elite

Oct 01

Toronto, Canada

90% AI deal score

$1,316

$696

Save $620

From SEA

Elite

Sep 13

Toronto, Canada

90% AI deal score

$1,350

$696

Save $654

From SEA

Elite

Sep 28

Toronto, Canada

90% AI deal score

$1,358

$696

Save $662

From SEA

Elite

Sep 18

Toronto, Canada

90% AI deal score

$1,354

$696

Save $658

From SEA

Elite

Sep 15

Toronto, Canada

90% AI deal score

$1,350

$696

Save $654

From SEA

Elite

Oct 01

Toronto, Canada

90% AI deal score

$1,316

$696

Save $620

From SEA

Elite

Sep 28

Toronto, Canada

90% AI deal score

$1,358

$696

Save $662

From SEA

Elite

Oct 05

Toronto, Canada

90% AI deal score

$1,314

$696

Save $618

From SEA

Elite

Sep 13

Toronto, Canada

90% AI deal score

$1,351

$696

Save $655

From SEA

Elite

Oct 02

Toronto, Canada

90% AI deal score

$1,323

$696

Save $627

From SEA

Elite

Sep 28

Toronto, Canada

90% AI deal score

$1,359

$696

Save $663

From SEA

Elite

Sep 16

Toronto, Canada

90% AI deal score

$1,347

$696

Save $651

From SEA

Elite

Sep 18

Toronto, Canada

90% AI deal score

$1,348

$696

Save $652

From SEA

Elite

Sep 13

Toronto, Canada

90% AI deal score

$1,348

$696

Save $652

From SEA

Elite

Sep 14

Toronto, Canada

90% AI deal score

$1,349

$696

Save $653

From SEA

Elite

Oct 04

Toronto, Canada

90% AI deal score

$1,313

$696

Save $617

From SEA

Elite

Sep 17

Toronto, Canada

90% AI deal score

$1,347

$696

Save $651

From SEA

Elite

Oct 08

Toronto, Canada

90% AI deal score

$1,303

$696

Save $607

From SEA

Elite

Sep 13

Toronto, Canada

90% AI deal score

$1,351

$696

Save $655

From SEA

Elite

Sep 27

Toronto, Canada

90% AI deal score

$1,360

$696

Save $664

From SEA

Elite

Oct 10

Toronto, Canada

90% AI deal score

$1,321

$696

Save $625

From SEA

Elite

Sep 29

Toronto, Canada

90% AI deal score

$1,358

$696

Save $662

From SEA

Elite

Sep 17

Toronto, Canada

90% AI deal score

$1,347

$696

Save $651

From SEA

Elite

Sep 29

Toronto, Canada

90% AI deal score

$1,358

$696

Save $662

From SEA

Elite

Oct 02

Toronto, Canada

90% AI deal score

$1,316

$696

Save $620

From SEA

Elite

Sep 19

Toronto, Canada

90% AI deal score

$1,349

$696

Save $653

From SEA

Elite

Sep 15

Toronto, Canada

90% AI deal score

$1,350

$696

Save $654

From SEA

Elite

Sep 14

Toronto, Canada

90% AI deal score

$1,350

$696

Save $654

From SEA

Elite

Sep 18

Toronto, Canada

90% AI deal score

$1,348

$696

Save $652

From SEA

Elite

Sep 30

Toronto, Canada

90% AI deal score

$1,359

$696

Save $663

From SEA

Elite

Sep 17

Toronto, Canada

90% AI deal score

$1,335

$696

Save $639

From SEA

Elite

Sep 16

Toronto, Canada

90% AI deal score

$1,348

$696

Save $652

From SEA

Elite

Oct 10

Toronto, Canada

90% AI deal score

$1,321

$696

Save $625

Frequently Asked Questions About Flights to Toronto

Historically, the optimal booking window for flights from Seattle to Toronto is typically 14-27 days before departure. During this period, the average price was $323. Booking 7-13 days out also offered competitive pricing, with an average of $325. Prices tend to increase significantly for last-minute bookings, with flights purchased 0-6 days before departure averaging $581.

Across the trailing quarter, a good deal for a flight from Seattle to Toronto is considered to be $259 or less. The median price for this route was $389. Prices typically start to increase significantly above the $589 mark.

Historically, April has been the cheapest month to fly from Seattle to Toronto, with a median price of $232. March also offered lower prices, with a median of $276. The annual median price for this route is $389, indicating that these months offer substantial savings compared to the yearly average.