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Cheap flights from Washington to Toronto from $133

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Toronto departing on 5/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
7:35 pm - 5:15 pm
SEA
-
YHM
18h 40m
1 stop
WestJet Logo
6:10 pm - 9:40 am
YHM
-
SEA
18h 30m
1 stop
$298WestJet
Mon, May 4 - Sat, May 9
WestJet Logo
3:10 pm - 5:16 pm
SEA
-
YHM
23h 06m
1 stop
WestJet Logo
5:50 am - 2:19 pm
YHM
-
SEA
11h 29m
1 stop
$310WestJet
Tue, Mar 3 - Tue, Mar 10
WestJet Logo
3:10 pm - 5:16 pm
SEA
-
YHM
23h 06m
1 stop
WestJet Logo
5:50 am - 2:19 pm
YHM
-
SEA
11h 29m
1 stop
$312WestJet
Tue, Mar 3 - Tue, Mar 17
WestJet Logo
3:10 pm - 5:16 pm
SEA
-
YHM
23h 06m
1 stop
WestJet Logo
6:10 pm - 9:40 am
YHM
-
SEA
18h 30m
1 stop
$322WestJet
Wed, Apr 22 - Mon, Apr 27
WestJet Logo
7:35 pm - 5:15 pm
SEA
-
YHM
18h 40m
1 stop
WestJet Logo
6:10 pm - 6:45 pm
YHM
-
SEA
27h 35m
1 stop
$324WestJet
Thu, Apr 30 - Sun, May 3
WestJet Logo
3:10 pm - 5:16 pm
SEA
-
YHM
23h 06m
1 stop
WestJet Logo
6:10 pm - 2:19 pm
YHM
-
SEA
23h 09m
1 stop
$332WestJet
Wed, Apr 15 - Sun, Apr 19
WestJet Logo
10:30 am - 5:15 pm
SEA
-
YHM
27h 45m
1 stop
WestJet Logo
6:10 pm - 9:40 am
YHM
-
SEA
18h 30m
1 stop
$333WestJet
Fri, May 22 - Mon, May 25
WestJet Logo
7:35 pm - 5:15 pm
SEA
-
YHM
18h 40m
1 stop
WestJet Logo
6:10 pm - 9:40 am
YHM
-
SEA
18h 30m
1 stop
$334WestJet
Sat, May 2 - Sun, May 10
Multiple Airlines Logo
6:00 am - 10:18 pm
GEG
-
YHM
13h 18m
2 stops
Multiple Airlines Logo
8:15 am - 11:59 pm
YHM
-
GEG
18h 44m
2 stops
$686Multiple Airlines
Sun, Apr 12 - Tue, Apr 14
Multiple Airlines Logo
5:40 am - 10:18 pm
GEG
-
YHM
13h 38m
2 stops
Multiple Airlines Logo
8:15 am - 5:03 pm
YHM
-
GEG
11h 48m
2 stops
$750Multiple Airlines
Mon, Mar 2 - Thu, Mar 5

WestJet flights from State of Washington to Hamilton, Ontario

Our best WestJet deals on State of Washington to Hamilton, Ontario flight tickets
WestJet
May 4
SEA7:35 pmSeattle/Tacoma Intl
18h 40m
1 stop
YHM5:15 pmHamilton
May 9
YHM6:10 pmHamilton
18h 30m
1 stop
SEA9:40 amSeattle/Tacoma Intl
$298
WestJet
Mar 3
SEA3:10 pmSeattle/Tacoma Intl
23h 06m
1 stop
YHM5:16 pmHamilton
Mar 10
YHM5:50 amHamilton
11h 29m
1 stop
SEA2:19 pmSeattle/Tacoma Intl
$310
WestJet
Mar 3
SEA3:10 pmSeattle/Tacoma Intl
23h 06m
1 stop
YHM5:16 pmHamilton
Mar 17
YHM5:50 amHamilton
11h 29m
1 stop
SEA2:19 pmSeattle/Tacoma Intl
$312

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington to Hamilton, Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 5, 2026.
Use the filters below to find and compare flights from Washington to Hamilton, Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Mon 5/4

7:35 pm-5:15 pm

1 stop18h 40m

Hamilton

Sat 5/9

6:10 pm-9:40 am

1 stop18h 30m

$298

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Tue 3/3

3:10 pm-5:16 pm

1 stop23h 06m

Hamilton

Tue 3/10

5:50 am-2:19 pm

1 stop11h 29m

$310

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Tue 3/3

3:10 pm-5:16 pm

1 stop23h 06m

Hamilton

Tue 3/17

5:50 am-2:19 pm

1 stop11h 29m

$312

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Wed 4/22

3:10 pm-5:16 pm

1 stop23h 06m

Hamilton

Mon 4/27

6:10 pm-9:40 am

1 stop18h 30m

$322

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Thu 4/30

7:35 pm-5:15 pm

1 stop18h 40m

Hamilton

Sun 5/3

6:10 pm-6:45 pm

1 stop27h 35m

$324

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Wed 4/15

3:10 pm-5:16 pm

1 stop23h 06m

Hamilton

Sun 4/19

6:10 pm-2:19 pm

1 stop23h 09m

$332

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Fri 5/22

10:30 am-5:15 pm

1 stop27h 45m

Hamilton

Mon 5/25

6:10 pm-9:40 am

1 stop18h 30m

$333

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Sat 5/2

7:35 pm-5:15 pm

1 stop18h 40m

Hamilton

Sun 5/10

6:10 pm-9:40 am

1 stop18h 30m

$334

SpokaneHamilton

GEG - YHM

GEGYHM

Spokane

Sun 4/12

6:00 am-10:18 pm

2 stops13h 18m

Hamilton

Tue 4/14

8:15 am-11:59 pm

2 stops18h 44m

$686

SpokaneHamilton

GEG - YHM

GEGYHM

Spokane

Mon 3/2

5:40 am-10:18 pm

2 stops13h 38m

Hamilton

Thu 3/5

8:15 am-5:03 pm

2 stops11h 48m

$750

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from State of Washington to Hamilton, Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Washington to Hamilton?

WestJet is the most popular carrier operating from Washington to Hamilton

What airlines fly to Hamilton, Ontario?

Alaska Airlines, Air Canada and WestJet are the top three most popular airlines that fly to Hamilton, Ontario from State of Washington according to our data. Alaska Airlines is the first choice among our users, with 57% of people opting to fly with this airline when traveling to Hamilton, Ontario. Keep in mind that there are 5 different airlines that fly to Hamilton, Ontario on a routine basis, so you have a few additional options to choose from.

Cheap State of Washington to Hamilton, Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Hamilton, Ontario

Fastest flight time

7h 05m

Direct flights

None
The fastest flight from State of Washington to Hamilton, Ontario takes 7h 05m
There are no direct flights from State of Washington to Hamilton, Ontario. There are no popular flight routes from State of Washington to Hamilton, Ontario.
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  • When did momondo last update prices for flights from Washington to Hamilton Airport?

    Prices for flights from Washington to Hamilton Airport refresh daily.

  • How old do you have to be to fly from Washington to Hamilton Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Hamilton Airport.

  • What documentation or ID do you need to fly to Hamilton Airport?

    The travel and health documents you'll need for your trip to Hamilton Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Hamilton Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Hamilton?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington to Hamilton. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Washington to Hamilton with flexible booking policies on momondo?

All flight searches from Washington to Hamilton on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington to Hamilton?

momondo helps you find the best flight between Washington and Hamilton by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Washington to Hamilton right now. Can momondo alert me if prices change?

Price alerts on flights to Hamilton from Washington are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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