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Cheap flights from Hamilton, Ontario to Washington from $140

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Hamilton, Ontario to Washington departing on 1/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Hamilton, Ontario to Washington

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
6:00 am - 12:59 pmYHM-SEA
9h 59m1 stop
WestJet Logo
1:50 pm - 12:40 amSEA-YHM
7h 50m1 stop
$218WestJet
Find Deal
Wed, Oct 22 - Fri, Oct 24
WestJet Logo
6:00 am - 12:59 pmYHM-SEA
9h 59m1 stop
WestJet Logo
3:10 pm - 5:17 pmSEA-YHM
23h 07m1 stop
$249WestJet
Find Deal
Sat, Oct 25 - Sun, Nov 2
WestJet Logo
6:00 am - 12:59 pmYHM-SEA
9h 59m1 stop
WestJet Logo
1:50 pm - 12:40 amSEA-YHM
7h 50m1 stop
$250WestJet
Find Deal
Wed, Oct 22 - Thu, Oct 23
WestJet Logo
6:00 am - 12:59 pmYHM-SEA
9h 59m1 stop
WestJet Logo
3:10 pm - 5:17 pmSEA-YHM
23h 07m1 stop
$308WestJet
Find Deal
Sat, Oct 25 - Sun, Nov 2
WestJet Logo
6:10 pm - 2:20 pmYHM-SEA
23h 10m1 stop
WestJet Logo
3:20 pm - 5:17 pmSEA-YHM
22h 57m1 stop
$317WestJet
Find Deal
Sun, Nov 2 - Sat, Nov 8
WestJet Logo
6:00 am - 12:59 pmYHM-SEA
9h 59m1 stop
WestJet Logo
3:10 pm - 5:17 pmSEA-YHM
23h 07m1 stop
$323WestJet
Find Deal
Sat, Oct 25 - Sun, Nov 2
Multiple Airlines Logo
2:35 pm - 2:20 pmYHM-SEA
26h 45m1 stop
Multiple Airlines Logo
3:20 pm - 5:17 pmSEA-YHM
22h 57m1 stop
$359Multiple Airlines
Find Deal
Sat, Nov 22 - Sat, Nov 29
Multiple Airlines Logo
8:15 am - 2:39 pmYHM-SEA
9h 24m1 stop
Multiple Airlines Logo
5:43 pm - 5:17 pmSEA-YHM
20h 34m2 stops
$360Multiple Airlines
Find Deal
Sat, Nov 22 - Sat, Nov 29
WestJet Logo
6:00 am - 7:21 pmYHM-SEA
16h 21m1 stop
WestJet Logo
1:50 pm - 12:40 amSEA-YHM
7h 50m1 stop
$370WestJet
Find Deal
Wed, Oct 15 - Wed, Oct 22
Multiple Airlines Logo
8:15 am - 2:31 pmYHM-SEA
9h 16m1 stop
Multiple Airlines Logo
5:50 am - 7:00 pmSEA-YHM
10h 10m1 stop
$383Multiple Airlines
Find Deal
Mon, Nov 17 - Mon, Nov 24

WestJet flights from Hamilton, Ontario to State of Washington

Our best WestJet deals on Hamilton, Ontario to State of Washington flight tickets
WestJet
Oct 22
YHM6:00 amHamilton
9h 59m
1 stop
SEA12:59 pmSeattle/Tacoma Intl
Oct 24
SEA1:50 pmSeattle/Tacoma Intl
7h 50m
1 stop
YHM12:40 amHamilton
$218
Find similar
WestJet
Oct 25
YHM6:00 amHamilton
9h 59m
1 stop
SEA12:59 pmSeattle/Tacoma Intl
Nov 2
SEA3:10 pmSeattle/Tacoma Intl
23h 07m
1 stop
YHM5:17 pmHamilton
$249
Find similar
WestJet
Oct 22
YHM6:00 amHamilton
9h 59m
1 stop
SEA12:59 pmSeattle/Tacoma Intl
Oct 23
SEA1:50 pmSeattle/Tacoma Intl
7h 50m
1 stop
YHM12:40 amHamilton
$250
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Hamilton, Ontario to State of Washington 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 October 5, 2025.
Use the filters below to find and compare flights from Hamilton, Ontario to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Wed 10/22

6:00 am-12:59 pm

1 stop9h 59m

Seattle/Tacoma Intl

Fri 10/24

1:50 pm-12:40 am

1 stop7h 50m

$218

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Sat 10/25

6:00 am-12:59 pm

1 stop9h 59m

Seattle/Tacoma Intl

Sun 11/2

3:10 pm-5:17 pm

1 stop23h 07m

$249

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Wed 10/22

6:00 am-12:59 pm

1 stop9h 59m

Seattle/Tacoma Intl

Thu 10/23

1:50 pm-12:40 am

1 stop7h 50m

$250

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Sat 10/25

6:00 am-12:59 pm

1 stop9h 59m

Seattle/Tacoma Intl

Sun 11/2

3:10 pm-5:17 pm

1 stop23h 07m

$308

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Sun 11/2

6:10 pm-2:20 pm

1 stop23h 10m

Seattle/Tacoma Intl

Sat 11/8

3:20 pm-5:17 pm

1 stop22h 57m

$317

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Sat 10/25

6:00 am-12:59 pm

1 stop9h 59m

Seattle/Tacoma Intl

Sun 11/2

3:10 pm-5:17 pm

1 stop23h 07m

$323

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Sat 11/22

2:35 pm-2:20 pm

1 stop26h 45m

Seattle/Tacoma Intl

Sat 11/29

3:20 pm-5:17 pm

1 stop22h 57m

$359

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Sat 11/22

8:15 am-2:39 pm

1 stop9h 24m

Seattle/Tacoma Intl

Sat 11/29

5:43 pm-5:17 pm

2 stops20h 34m

$360

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Wed 10/15

6:00 am-7:21 pm

1 stop16h 21m

Seattle/Tacoma Intl

Wed 10/22

1:50 pm-12:40 am

1 stop7h 50m

$370

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Mon 11/17

8:15 am-2:31 pm

1 stop9h 16m

Seattle/Tacoma Intl

Mon 11/24

5:50 am-7:00 pm

1 stop10h 10m

$383

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington from

How to get the cheapest flight ticket from Hamilton, Ontario to State of Washington

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 time of day to depart on your flight to State of Washington?

The cheapest time of day to fly to State of Washington is at noon when flights can be purchased for as low as $253. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $584 on average. Flights to State of Washington from Hamilton, Ontario in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

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

Direct flights

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

    Prices for flights from Hamilton Airport to Washington are updated daily.

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

    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 Hamilton Airport to Washington.

  • What documentation or ID do you need to fly to Washington?

    The required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Hamilton to Washington. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Washington from Hamilton on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between Hamilton and Washington 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 Hamilton to Washington right now. Can momondo alert me if prices change?

Price alerts on flights to Washington from Hamilton 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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