Cheap Flights from Toronto to Seattle
Browse current best options from Toronto. Become a member to unlock all deals and get alerts when new deals appear.
Deals from
Toronto
RatePunk searches hundreds of travel sites at once for deals on flights to Seattle
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 Toronto to Seattle
Explore current cheapest deals departing from Toronto to Seattle
Round trip
Sort by: Cheapest
September 13 - September 20
YYZ - Seattle
$394
$301
Round trip
September 5 - September 18
YYZ - Seattle
$367
$312
Round trip
September 11 - September 22
YYZ - Seattle
$371
$312
Round trip
September 24 - September 28
YYZ - Seattle
$401
$313
Round trip
September 7 - September 13
YYZ - Seattle
$394
$318
Round trip
September 4 - September 8
YYZ - Seattle
$398
$319
Round trip
September 5 - September 12
YYZ - Seattle
$393
$319
Round trip
September 4 - September 7
YYZ - Seattle
$398
$324
Round trip
September 5 - September 14
YYZ - Seattle
$379
$324
Round trip
September 24 - September 30
YYZ - Seattle
$396
$324
Round trip
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Route Intelligence — 486,190 Searches this Week
Insights for flights from Toronto to Seattle
How much is a round trip from Toronto to Seattle
Regular price: $332 - $829
Prices for flights from Toronto to Seattle are currently below the regular range.
The regular price range for flights from Toronto to Seattle is between $332 and $829. The current lowest deal is $301 with WestJet, for travel from Sep 13 to Sep 20.
now $301
Low $332
High $829
The cheapest time to fly from Toronto to Seattle
The cheapest month to fly from YTO to SEA is April, with a median price of $259. The most expensive month is March, with a median price of $784. Prices are generally lower from January to November.
April
Flights from $259
March
Flights from $784
Direct flights from Toronto to Seattle
Air Canada
Last-minute flights going from Toronto to Seattle
Sat, Jun 27
YKF - Seattle
Waterloo (YKF) - Seattle (SEA)
WestJet
$493
$350
One-way
Sat, Jun 27
YYZ - Seattle
Toronto (YYZ) - Seattle (SEA)
WestJet
$583
$381
One-way
Fri, Jul 3
YKF - Seattle
Waterloo (YKF) - Seattle (SEA)
WestJet
$486
$333
One-way
Mon, Jul 6
YKF - Seattle
Waterloo (YKF) - Seattle (SEA)
WestJet
$469
$331
One-way
Tue, Jul 7
YKF - Seattle
Waterloo (YKF) - Seattle (SEA)
WestJet
$446
$332
One-way
Tue, Jul 7
YKF - Seattle
Waterloo (YKF) - Seattle (SEA)
WestJet
$428
$333
One-way
Biggest price drops on these dates for flights from Toronto to Seattle
Jun 27 - Jun 30
$583 → $381
35%
Aug 28 - Aug 31
$487 → $325
33%
Aug 6 - Aug 9
$494 → $332
33%
Aug 27 - Aug 29
$490 → $331
32%
Popular Airports to fly from Toronto to Seattle
Toronto - Seattle route insights
💸 Price insights
Recent fares are below the typical level
Recent fares from Toronto to Seattle are below the typical level, with deals around $301.
📅 Best time to fly
April is historically cheapest at $259
Historically, April is the cheapest month to fly from Toronto to Seattle, with a median price of $259.
⏱️ Flight duration
Connecting flights average 15h 20m
The typical flight duration from Toronto to Seattle is 15h 20m, with most flights having 2 stopovers.
✈️ Airlines & availability
Connecting flights are dominant on this route
Connecting flights make up 76.8% of deals, with frequent deals available daily.
🏆 Airline highlight
Air Canada offers direct flights
Air Canada is an airline offering direct flights from Toronto to Seattle.
🎯 Booking tip
Good prices are available 13% of the time
Historically, good prices for Toronto to Seattle flights are available 13% of the time.
Toronto main airports to depart from
Toronto Pearson International (YYZ)
Fly from Toronto Pearson International for a wide range of flights to Seattle.
📍 ~20 km from city center (reachable by car or public transport)
💸 Flights from ~$301
Billy Bishop Toronto City (YTZ)
Consider Billy Bishop Toronto City for an alternative departure point to Seattle.
📍 ~5 km from city center (reachable by car or ferry)
💸 Flights from ~$419
Seattle main airports to arrive at
Seattle–Tacoma International (SEA)
Seattle–Tacoma International Airport is a primary arrival option for flights to Seattle from Toronto.
📍 ~18 km from Seattle (reachable by car)
💸 Flights from ~$301
Boeing Field (BFI)
Boeing Field offers an alternative arrival point for travelers flying to Seattle from Toronto.
📍 ~8 km from Seattle (reachable by car)
💸 Flights from ~$702
Kenmore Air Harbor Seaplane Base (LKE)
Kenmore Air Harbor Seaplane Base provides a unique arrival experience for flights to Seattle from Toronto.
📍 ~3 km from Seattle (reachable by car)
💸 Flights from ~$584
Airports nearby Seattle used as alternative
Paine Field Everett (PAE)
Paine Field Everett (PAE) offers a convenient alternative for North Seattle residents with shorter wait times.
📍 ~35 km from Seattle (reachable by car)
💸 Flights from ~$572
Portland International (PDX)
Portland International (PDX) is a major hub with a comprehensive route network that rivals Seattle.
📍 ~230 km from Seattle (reachable by car or train)
💸 Flights from ~$268
Vancouver International (YVR)
Vancouver International (YVR) is a major international gateway with extensive transpacific and European flight options.
📍 ~200 km from Seattle (reachable by car, involves border crossing)
💸 Flights from ~$213
Bellingham International (BLI)
Bellingham International (BLI) is a primary low-cost carrier airport for the region, often featuring budget-friendly fares.
📍 ~145 km from Seattle (reachable by car)
💸 Flights from ~$386
Abbotsford International (YXX)
Abbotsford International (YXX) is an alternative low-cost gateway for travelers seeking Canadian domestic connections.
📍 ~120 km from Seattle (reachable by car, involves border crossing)
💸 Flights from ~$200
Business & First Class Flight Deals to Seattle
Discover luxury on the budget with premium cabin class on flights from Toronto to Seattle.
Elite
Best Elite deals to Seattle
Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.
From YYZ
Elite
Sep 04
Seattle, United States
90% AI deal score
$1,184
$619
Save $565
From YYZ
Elite
Sep 04
Seattle, United States
90% AI deal score
$1,186
$619
Save $567
From YYZ
Elite
Sep 04
Seattle, United States
90% AI deal score
$1,170
$619
Save $551
From YYZ
Elite
Sep 03
Seattle, United States
90% AI deal score
$1,253
$635
Save $618
From YYZ
Elite
Sep 05
Seattle, United States
90% AI deal score
$1,241
$650
Save $591
From YYZ
Elite
Aug 13
Seattle, United States
90% AI deal score
$1,296
$682
Save $614
From YYZ
Elite
Dec 02
Seattle, United States
89% AI deal score
$1,896
$1,049
Save $847
From YYZ
Elite
Sep 08
Seattle, United States
88% AI deal score
$1,188
$666
Save $522
From YYZ
Elite
Sep 08
Seattle, United States
88% AI deal score
$1,187
$666
Save $521
From YYZ
Elite
Sep 30
Seattle, United States
88% AI deal score
$1,178
$696
Save $482
From YYZ
Elite
Sep 30
Seattle, United States
88% AI deal score
$1,193
$696
Save $497
From YYZ
Elite
Sep 30
Seattle, United States
88% AI deal score
$1,199
$696
Save $503
From YYZ
Elite
Sep 30
Seattle, United States
88% AI deal score
$1,193
$696
Save $497
From YYZ
Elite
Sep 30
Seattle, United States
88% AI deal score
$1,183
$696
Save $487
From YYZ
Elite
Sep 30
Seattle, United States
88% AI deal score
$1,194
$696
Save $498
From YYZ
Elite
Sep 30
Seattle, United States
88% AI deal score
$1,183
$696
Save $487
From YYZ
Elite
Sep 30
Seattle, United States
88% AI deal score
$1,193
$696
Save $497
From YYZ
Elite
Sep 30
Seattle, United States
88% AI deal score
$1,183
$696
Save $487
From YYZ
Elite
Sep 30
Seattle, United States
88% AI deal score
$1,209
$696
Save $513
From YYZ
Elite
Sep 30
Seattle, United States
88% AI deal score
$1,229
$696
Save $533
From YYZ
Elite
Sep 30
Seattle, United States
88% AI deal score
$1,183
$696
Save $487
From YYZ
Elite
Sep 30
Seattle, United States
88% AI deal score
$1,193
$696
Save $497
From YYZ
Elite
Sep 30
Seattle, United States
88% AI deal score
$1,193
$696
Save $497
From YYZ
Elite
Sep 30
Seattle, United States
88% AI deal score
$1,182
$696
Save $486
From YYZ
Elite
Sep 30
Seattle, United States
88% AI deal score
$1,221
$696
Save $525
From YYZ
Elite
Sep 30
Seattle, United States
88% AI deal score
$1,183
$696
Save $487
From YYZ
Elite
Sep 04
Seattle, United States
88% AI deal score
$1,224
$710
Save $514
From YYZ
Elite
Sep 04
Seattle, United States
88% AI deal score
$1,234
$710
Save $524
From YYZ
Elite
Sep 04
Seattle, United States
88% AI deal score
$1,242
$710
Save $532
From YYZ
Elite
Sep 04
Seattle, United States
88% AI deal score
$1,253
$710
Save $543
From YYZ
Elite
Sep 04
Seattle, United States
88% AI deal score
$1,261
$710
Save $551
From YYZ
Elite
Oct 06
Seattle, United States
88% AI deal score
$1,253
$710
Save $543
From YYZ
Elite
Dec 01
Seattle, United States
87% AI deal score
$1,743
$1,072
Save $671
From YYZ
Elite
Aug 18
Seattle, United States
87% AI deal score
$1,432
$1,051
Save $381
From YYZ
Elite
Jul 29
Seattle, United States
87% AI deal score
$1,479
$1,059
Save $420
From YYZ
Elite
Dec 01
Seattle, United States
87% AI deal score
$1,818
$1,107
Save $711
From YYZ
Elite
Dec 01
Seattle, United States
87% AI deal score
$1,813
$1,107
Save $706
From YYZ
Elite
Dec 01
Seattle, United States
87% AI deal score
$1,886
$1,107
Save $779
From YYZ
Elite
Dec 01
Seattle, United States
87% AI deal score
$1,813
$1,107
Save $706
From YYZ
Elite
Dec 01
Seattle, United States
87% AI deal score
$1,892
$1,107
Save $785
From YYZ
Elite
Dec 01
Seattle, United States
87% AI deal score
$1,861
$1,107
Save $754
From YYZ
Elite
Dec 01
Seattle, United States
87% AI deal score
$1,883
$1,107
Save $776
From YYZ
Elite
Dec 01
Seattle, United States
87% AI deal score
$1,830
$1,107
Save $723
From YYZ
Elite
Sep 04
Seattle, United States
87% AI deal score
$1,181
$710
Save $471
From YYZ
Elite
Sep 04
Seattle, United States
87% AI deal score
$1,173
$710
Save $463
From YYZ
Elite
Sep 04
Seattle, United States
87% AI deal score
$1,185
$710
Save $475
From YYZ
Elite
Sep 04
Seattle, United States
87% AI deal score
$1,172
$710
Save $462
From YYZ
Elite
Sep 04
Seattle, United States
87% AI deal score
$1,175
$710
Save $465
From YYZ
Elite
Sep 04
Seattle, United States
87% AI deal score
$1,185
$710
Save $475
From YYZ
Elite
Sep 04
Seattle, United States
87% AI deal score
$1,172
$710
Save $462
From YYZ
Elite
Sep 04
Seattle, United States
87% AI deal score
$1,172
$710
Save $462
From YYZ
Elite
Sep 04
Seattle, United States
87% AI deal score
$1,172
$710
Save $462
From YYZ
Elite
Sep 04
Seattle, United States
87% AI deal score
$1,175
$710
Save $465
From YYZ
Elite
Sep 04
Seattle, United States
87% AI deal score
$1,174
$710
Save $464
From YYZ
Elite
Sep 04
Seattle, United States
87% AI deal score
$1,175
$710
Save $465
From YYZ
Elite
Sep 04
Seattle, United States
87% AI deal score
$1,174
$710
Save $464
From YYZ
Elite
Sep 04
Seattle, United States
87% AI deal score
$1,185
$710
Save $475
From YYZ
Elite
Sep 04
Seattle, United States
87% AI deal score
$1,174
$710
Save $464
From YYZ
Elite
Sep 04
Seattle, United States
87% AI deal score
$1,185
$710
Save $475
From YYZ
Elite
Sep 04
Seattle, United States
87% AI deal score
$1,172
$710
Save $462
From YYZ
Elite
Sep 04
Seattle, United States
87% AI deal score
$1,172
$710
Save $462
From YYZ
Elite
Oct 08
Seattle, United States
87% AI deal score
$1,216
$710
Save $506
From YYZ
Elite
Oct 06
Seattle, United States
87% AI deal score
$1,216
$710
Save $506
From YYZ
Elite
Oct 05
Seattle, United States
87% AI deal score
$1,222
$710
Save $512
From YYZ
Elite
Oct 05
Seattle, United States
87% AI deal score
$1,211
$710
Save $501
From YYZ
Elite
Oct 21
Seattle, United States
87% AI deal score
$1,226
$710
Save $516
From YYZ
Elite
Oct 06
Seattle, United States
87% AI deal score
$1,222
$710
Save $512
From YYZ
Elite
Oct 06
Seattle, United States
87% AI deal score
$1,231
$710
Save $521
From YYZ
Elite
Oct 06
Seattle, United States
87% AI deal score
$1,225
$710
Save $515
From YYZ
Elite
Oct 08
Seattle, United States
87% AI deal score
$1,226
$710
Save $516
From YYZ
Elite
Oct 06
Seattle, United States
87% AI deal score
$1,235
$710
Save $525
From YYZ
Elite
Oct 05
Seattle, United States
87% AI deal score
$1,216
$710
Save $506
From YYZ
Elite
Nov 24
Seattle, United States
86% AI deal score
$1,643
$1,106
Save $537
From YYZ
Elite
Nov 24
Seattle, United States
86% AI deal score
$1,668
$1,106
Save $562
From YYZ
Elite
Nov 24
Seattle, United States
86% AI deal score
$1,617
$1,106
Save $511
From YYZ
Elite
Nov 24
Seattle, United States
86% AI deal score
$1,617
$1,106
Save $511
From YYZ
Elite
Nov 24
Seattle, United States
86% AI deal score
$1,632
$1,106
Save $526
From YYZ
Elite
Nov 22
Seattle, United States
86% AI deal score
$1,618
$1,107
Save $511
From YYZ
Elite
Nov 25
Seattle, United States
86% AI deal score
$1,640
$1,107
Save $533
From YYZ
Elite
Nov 22
Seattle, United States
86% AI deal score
$1,633
$1,107
Save $526
From YYZ
Elite
Nov 21
Seattle, United States
86% AI deal score
$1,618
$1,107
Save $511
From YYZ
Elite
Nov 21
Seattle, United States
86% AI deal score
$1,644
$1,107
Save $537
From YYZ
Elite
Nov 23
Seattle, United States
86% AI deal score
$1,633
$1,107
Save $526
From YYZ
Elite
Nov 23
Seattle, United States
86% AI deal score
$1,618
$1,107
Save $511
From YYZ
Elite
Nov 21
Seattle, United States
86% AI deal score
$1,633
$1,107
Save $526
From YYZ
Elite
Nov 23
Seattle, United States
86% AI deal score
$1,639
$1,107
Save $532
From YYZ
Elite
Nov 25
Seattle, United States
86% AI deal score
$1,678
$1,107
Save $571
From YYZ
Elite
Nov 21
Seattle, United States
86% AI deal score
$1,639
$1,107
Save $532
From YYZ
Elite
Nov 22
Seattle, United States
86% AI deal score
$1,641
$1,107
Save $534
From YYZ
Elite
Nov 22
Seattle, United States
86% AI deal score
$1,644
$1,107
Save $537
From YYZ
Elite
Nov 25
Seattle, United States
86% AI deal score
$1,632
$1,107
Save $525
From YYZ
Elite
Nov 22
Seattle, United States
86% AI deal score
$1,633
$1,107
Save $526
From YYZ
Elite
Nov 25
Seattle, United States
86% AI deal score
$1,617
$1,107
Save $510
From YYZ
Elite
Nov 25
Seattle, United States
86% AI deal score
$1,617
$1,107
Save $510
From YYZ
Elite
Nov 23
Seattle, United States
86% AI deal score
$1,633
$1,107
Save $526
From YYZ
Elite
Nov 25
Seattle, United States
86% AI deal score
$1,648
$1,107
Save $541
From YYZ
Elite
Nov 23
Seattle, United States
86% AI deal score
$1,649
$1,107
Save $542
From YYZ
Elite
Nov 19
Seattle, United States
86% AI deal score
$1,633
$1,107
Save $526
From YYZ
Elite
Nov 19
Seattle, United States
86% AI deal score
$1,641
$1,107
Save $534
From YYZ
Elite
Nov 19
Seattle, United States
86% AI deal score
$1,649
$1,107
Save $542