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$79+ Cheap flights from Washington to Hamilton, ON (YHM)

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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YHM
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Washington to Hamilton

Keep the following information in mind while searching for Washington to Hamilton flight deals. Data was last updated September 15, 2025.

Round-trip from

$216
(Trip.com)

One-way from

$79
(Trip.com)

Popular in

June

Cheapest in

January

Average price

$411
From Washington to Hamilton
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One-way flight from Washington to Hamilton
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Highest demand for flights based on searches. 15% potential increase in price ($70 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Washington to Hamilton

Cheapest flights from Washington to Hamilton
Explore the most affordable flight options available from Washington to Hamilton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Trip.com deal was found by Cheapflights users on 9/13. 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.
Fri 10/171:50 pmSEA - YHM
1 stop7h 50mWestJet
Tue 10/216:00 amYHM - SEA
1 stop9h 59mWestJet
Deal found 9/13$216
This oojo deal was found by Cheapflights users on 9/14. 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.
Tue 10/142:05 pmSEA - YHM
1 stop7h 35mWestJet
Tue 10/216:00 amYHM - SEA
1 stop9h 59mWestJet
Deal found 9/14$220
This FlightHub deal was found by Cheapflights users on 9/14. 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.
Sat 10/111:50 pmSEA - YHM
1 stop7h 50mWestJet
Tue 10/216:00 amYHM - SEA
1 stop9h 59mWestJet
Deal found 9/14$240
This oojo deal was found by Cheapflights users on 9/14. 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.
Sun 10/128:40 amSEA - YHM
1 stop13h 00mWestJet
Tue 10/216:00 amYHM - SEA
1 stop9h 59mWestJet
Deal found 9/14$246
This FlightHub deal was found by Cheapflights users on 9/14. 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.
Sat 10/111:50 pmSEA - YHM
1 stop7h 50mWestJet
Mon 10/206:00 amYHM - SEA
1 stop9h 59mWestJet
Deal found 9/14$252
This Trip.com deal was found by Cheapflights users on 9/13. 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.
Thu 10/231:50 pmSEA - YHM
1 stop7h 50mWestJet
Sun 10/266:10 pmYHM - SEA
1 stop23h 10mWestJet
Deal found 9/13$254
This oojo deal was found by Cheapflights users on 9/13. 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.
Tue 10/217:05 amSEA - YHM
1 stop14h 35mWestJet
Sat 10/256:00 amYHM - SEA
1 stop9h 59mWestJet
Deal found 9/13$257
This FlightHub deal was found by Cheapflights users on 9/13. 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.
Fri 10/171:50 pmSEA - YHM
1 stop7h 50mWestJet
Wed 10/226:00 amYHM - SEA
1 stop9h 59mWestJet
Deal found 9/13$263
This oojo deal was found by Cheapflights users on 9/13. 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.
Wed 10/221:50 pmSEA - YHM
1 stop7h 50mWestJet
Wed 10/296:10 pmYHM - SEA
1 stop23h 10mWestJet
Deal found 9/13$268
This FlightHub deal was found by Cheapflights users on 9/13. 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.
Fri 10/171:50 pmSEA - YHM
1 stop7h 50mWestJet
Mon 10/206:00 amYHM - SEA
1 stop9h 59mWestJet
Deal found 9/13$276
This FlightHub deal was found by Cheapflights users on 9/13. 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.
Sun 10/198:40 amSEA - YHM
1 stop13h 00mWestJet
Sat 10/256:00 amYHM - SEA
1 stop9h 59mWestJet
Deal found 9/13$277
This Expedia deal was found by Cheapflights users on 9/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/308:48 amGEG - YHM
2 stops12h 11mMultiple Airlines
Tue 10/77:05 amYHM - GEG
2 stops12h 55mMultiple Airlines
Deal found 9/13$772

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to Hamilton 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 September 15, 2025.
Use the filters below to find and compare flights from Washington to Hamilton that are best for you.

Fly from

Washington

Fly to

Hamilton

Route

Depart

Return

Price

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Fri 10/17

1:50 pm-12:40 am

1 stop7h 50m

Hamilton

Tue 10/21

6:00 am-12:59 pm

1 stop9h 59m

$216

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Thu 10/16

1:50 pm-12:40 am

1 stop7h 50m

Hamilton

Tue 10/21

6:00 am-12:59 pm

1 stop9h 59m

$216

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Sat 10/11

1:50 pm-12:40 am

1 stop7h 50m

Hamilton

Tue 10/21

6:00 am-12:59 pm

1 stop9h 59m

$240

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Sun 10/12

8:40 am-12:40 am

1 stop13h 00m

Hamilton

Tue 10/21

6:00 am-12:59 pm

1 stop9h 59m

$246

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Sun 10/19

8:40 am-12:40 am

1 stop13h 00m

Hamilton

Wed 10/22

6:00 am-12:59 pm

1 stop9h 59m

$277

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Sun 10/19

8:40 am-12:40 am

1 stop13h 00m

Hamilton

Tue 10/21

6:00 am-12:59 pm

1 stop9h 59m

$277

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Mon 10/20

2:05 pm-12:40 am

1 stop7h 35m

Hamilton

Thu 10/23

6:00 am-12:59 pm

1 stop9h 59m

$284

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Thu 10/16

1:50 pm-12:40 am

1 stop7h 50m

Hamilton

Sat 10/25

6:00 am-12:59 pm

1 stop9h 59m

$284

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Mon 10/20

2:05 pm-12:40 am

1 stop7h 35m

Hamilton

Sat 10/25

6:00 am-12:59 pm

1 stop9h 59m

$284

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Fri 10/24

1:50 pm-12:40 am

1 stop7h 50m

Hamilton

Sun 10/26

6:10 pm-2:20 pm

1 stop23h 10m

$292

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 26 results
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Best time to book a flight from Washington to Hamilton

Have a flexible travel schedule? Discover the best time to fly to Hamilton from Washington 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 Washington to Hamilton
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Washington to Hamilton. 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 into for flights to Hamilton from Washington?

    Hamilton (YHM), located 6.8 mi from the city center, is the airport you fly into when you book flights from Washington to Hamilton.

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

    A quick flight from State of Washington to Hamilton, Ontario can take about 7h 50m. WestJet provides one of the quickest options available for as low as $216. There are 2053 mi between State of Washington and Hamilton, Ontario.

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

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

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

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

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

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

See more FAQs

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