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$151+ Cheap flights from Hamilton, ON (YHM) to Washington

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
YHM — SEA
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Find flight deals from Hamilton to Washington

Cheapest flights from Hamilton to Washington
Explore the most affordable flight options available from Hamilton to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Trip.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:10 pmYHM - SEA
1 stop23h 10mWestJet
Wed 12/103:10 pmSEA - YHM
1 stop23h 07mWestJet
Deal found 10/29$370
This Mytrip deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/228:15 amYHM - SEA
1 stop9h 16mMultiple Airlines
Sat 11/295:50 amSEA - YHM
1 stop10h 10mMultiple Airlines
Deal found 10/30$382
This Trip.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/196:10 pmYHM - SEA
1 stop23h 10mWestJet
Sun 11/233:10 pmSEA - YHM
1 stop23h 07mWestJet
Deal found 10/30$385
This FlightHub deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:10 pmYHM - SEA
1 stop23h 10mWestJet
Tue 11/183:10 pmSEA - YHM
1 stop23h 07mWestJet
Deal found 10/29$410
This oojo deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:10 pmYHM - SEA
1 stop23h 10mWestJet
Sat 12/63:20 pmSEA - YHM
1 stop22h 57mWestJet
Deal found 10/29$423
This FlightHub deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:10 pmYHM - SEA
1 stop23h 10mWestJet
Sun 11/233:10 pmSEA - YHM
1 stop23h 07mWestJet
Deal found 10/29$450
This oojo deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/206:10 pmYHM - SEA
1 stop23h 10mWestJet
Tue 12/93:10 pmSEA - YHM
1 stop23h 07mWestJet
Deal found 10/29$488
This Mytrip deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/278:15 amYHM - SEA
1 stop11h 31mMultiple Airlines
Thu 12/43:10 pmSEA - YHM
3 stops24h 50mMultiple Airlines
Deal found 10/30$502
This FlightHub deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:10 pmYHM - PDX
2 stops46h 08mWestJet
Wed 11/1911:35 amPDX - YHM
2 stops26h 42mWestJet
Deal found 10/28$715
This Justfly.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:10 pmYHM - PDX
2 stops46h 08mWestJet
Mon 11/171:53 pmPDX - YHM
2 stops48h 24mWestJet
Deal found 10/29$729
This Justfly.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/216:10 pmYHM - PDX
2 stops25h 30mWestJet
Sun 12/289:19 amPDX - YHM
2 stops28h 58mWestJet
Deal found 10/28$910
This Mytrip deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/148:15 amYHM - PDX
2 stops32h 03mMultiple Airlines
Mon 11/1711:35 amPDX - YHM
3 stops31h 43mMultiple Airlines
Deal found 10/28$962

Cheap flight deals from Hamilton to Washington

Keep the following information in mind while searching for Hamilton to Washington flight deals. Data was last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$250
(Trip.com)

One-way from

$151
(Yatra.com)

Popular in

December

Cheapest in

February

Average price

$330
Provider with most accurate pricing for Toronto (YTO)-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Toronto (YTO)-Seattle/Tacoma Intl flights.
Search Deals
From Hamilton to Washington
Search Deals
One-way flight from Hamilton to Washington
Search Deals
High demand for flights, 3% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Hamilton to 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, Cheapflights users made 2,558,603 searches. Data last updated October 30, 2025.
Use the filters below to find and compare flights from Hamilton to Washington that are best for you.

Fly from

Hamilton

Fly to

Washington

Route

Depart

Return

Price

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Wed 11/19

6:10 pm-2:20 pm

1 stop23h 10m

Seattle/Tacoma Intl

Sun 11/23

3:10 pm-5:17 pm

1 stop23h 07m

$385

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Mon 1/12

6:10 pm-2:20 pm

1 stop23h 10m

Seattle/Tacoma Intl

Sun 1/18

3:10 pm-5:17 pm

1 stop23h 07m

$386

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Sat 11/22

8:15 am-7:16 pm

1 stop14h 01m

Seattle/Tacoma Intl

Sat 11/29

5:50 am-7:00 pm

1 stop10h 10m

$405

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Thu 11/13

6:10 pm-2:20 pm

1 stop23h 10m

Seattle/Tacoma Intl

Tue 11/18

3:10 pm-5:17 pm

1 stop23h 07m

$410

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Thu 11/27

6:10 pm-12:59 pm

2 stops21h 49m

Seattle/Tacoma Intl

Thu 12/4

3:10 pm-7:00 pm

3 stops24h 50m

$523

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Sun 11/16

6:10 pm-2:20 pm

1 stop23h 10m

Seattle/Tacoma Intl

Sun 11/23

3:10 pm-5:17 pm

1 stop23h 07m

$531

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Thu 12/25

6:10 pm-2:20 pm

1 stop23h 10m

Seattle/Tacoma Intl

Tue 1/6

3:10 pm-5:17 pm

1 stop23h 07m

$552

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Tue 12/30

5:45 am-2:20 pm

1 stop11h 35m

Seattle/Tacoma Intl

Tue 1/6

3:10 pm-5:17 pm

1 stop23h 07m

$554

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Thu 11/13

6:10 pm-2:20 pm

1 stop23h 10m

Seattle/Tacoma Intl

Wed 11/19

3:15 pm-5:17 pm

1 stop23h 02m

$566

HamiltonPortland

YHM - PDX

YHMPDX

Hamilton

Wed 11/12

6:10 pm-1:18 pm

2 stops46h 08m

Portland

Wed 11/19

11:35 am-5:17 pm

2 stops26h 42m

$715

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 37 results
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Best time to book a flight from Hamilton to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Hamilton with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Hamilton to Washington

What is the cheapest month to book a flight from Hamilton, Ontario to State of Washington?

Currently, May is the cheapest month in which you can book a flight from Hamilton, Ontario to State of Washington (average of $92). Flying from Hamilton, Ontario to State of Washington in June is currently the most expensive (average of $249). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Hamilton to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Hamilton to Washington?

    Located just 6.8 mi from the city center, Hamilton (YHM) is the airport most travelers will use when flying to Washington from Hamilton.

  • How long is the flight from Hamilton, Ontario to State of Washington?

    WestJet can get you from Hamilton, Ontario to State of Washington in just under 23h 10m. Your travel time can differ by up to . The distance between Hamilton, Ontario and State of Washington is about 2053 mi.

  • Can I find deals for flights from Hamilton to Washington that include hotel bookings?

    Yes. In addition to deals on Hamilton to Washington flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Hamilton to Washington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Hamilton to Washington.

  • Can I find deals for business class flights from Hamilton to Washington?

    Yes. Cheapflights offers flight deals from Hamilton to Washington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Hamilton, Ontario to State of Washington?

    Currently, May is the cheapest month in which you can book a flight from Hamilton, Ontario to State of Washington (average of $92). Flying from Hamilton, Ontario to State of Washington in June is currently the most expensive (average of $249). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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