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Cheap flights from Hamilton, ON to Washington from C$ 248

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
YHM — SEA
16 Sep — 23 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Hamilton to Washington

Enter your travel dates to find the best prices.

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 17 August 2026.

Fri 4/96:10 p.m. -
1 stop18h 30m
Tue 8/97:00 a.m. -
1 stop7h 15m
Deal found 14/8C$ 393
Sat 5/96:10 p.m. -
1 stop18h 30m
Tue 8/97:00 a.m. -
1 stop7h 15m
Deal found 13/8C$ 395
Fri 11/96:10 p.m. -
1 stop27h 35m
Wed 16/97:35 p.m. -
1 stop18h 40m
Deal found 15/8C$ 436
Tue 15/96:10 p.m. -
1 stop18h 30m
Mon 21/97:35 p.m. -
1 stop18h 40m
Deal found 15/8C$ 437
Fri 28/86:10 p.m. -
1 stop22h 40m
Tue 1/92:30 p.m. -
1 stop23h 45m
Deal found 13/8C$ 437
Tue 22/96:10 p.m. -
1 stop18h 30m
Tue 29/97:35 p.m. -
1 stop18h 40m
Deal found 13/8C$ 438
Fri 11/96:10 p.m. -
1 stop18h 30m
Mon 21/97:35 p.m. -
1 stop18h 40m
Deal found 14/8C$ 449
Wed 30/96:10 p.m. -
1 stop27h 35m
Wed 7/107:35 p.m. -
1 stop18h 40m
Deal found 16/8C$ 469
Sat 5/96:10 p.m. -
1 stop18h 30m
Sat 12/910:30 a.m. -
1 stop27h 45m
Deal found 15/8C$ 473
Wed 26/86:10 p.m. -
1 stop22h 40m
Tue 1/92:30 p.m. -
1 stop23h 45m
Deal found 16/8C$ 480
Tue 25/86:10 p.m. -
1 stop22h 40m
Sat 29/82:30 p.m. -
1 stop23h 45m
Deal found 13/8C$ 508
Thu 27/86:10 p.m. -
1 stop22h 40m
Tue 1/92:30 p.m. -
1 stop23h 45m
Deal found 14/8C$ 520

Find flight deals from Hamilton to Washington

Keep the following information in mind while searching for Hamilton to Washington flight deals. Data was last updated 17 August 2026.

Round-trip from

C$ 393

One-way from

C$ 248

Popular in

June

Cheapest in

February

Average price

C$ 624
WestJet
  • WestJet
  • 4/9-8/9
  • 2 total stops
  • 25h 45m total
  • Hamilton to Washington
Search Deals
WestJet
  • WestJet
  • 4/9
  • 1 total stop
  • 18h 30m total
  • Hamilton to Washington
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (C$ 112 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
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 629,999 searches. Data last updated 17 August 2026.
Use the filters below to find and compare flights from Hamilton to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HamiltonPortland

YHM Hamilton - PDX Portland

YHMPDX

Hamilton

Fri 28/8

6:10 p.m.-1:50 p.m.

1 stop22h 40m

Portland

Tue 1/9

2:30 p.m.-5:15 p.m.

1 stop23h 45m

C$ 437

HamiltonSeattle

YHM Hamilton - SEA Seattle/Tacoma Intl

YHMSEA

Hamilton

Tue 22/9

6:10 p.m.-6:45 p.m.

1 stop27h 35m

Seattle/Tacoma Intl

Tue 6/10

7:35 p.m.-5:15 p.m.

1 stop18h 40m

C$ 477

HamiltonSeattle

YHM Hamilton - SEA Seattle/Tacoma Intl

YHMSEA

Hamilton

Fri 2/10

6:10 p.m.-9:40 a.m.

1 stop18h 30m

Seattle/Tacoma Intl

Sun 11/10

7:35 p.m.-5:15 p.m.

1 stop18h 40m

C$ 506
Quickest round-trip

HamiltonSeattle

YHM Hamilton - SEA Seattle/Tacoma Intl

YHMSEA

Hamilton

Tue 1/9

6:10 p.m.-9:40 a.m.

1 stop18h 30m

Seattle/Tacoma Intl

Sun 6/9

7:00 a.m.-5:15 p.m.

1 stop7h 15m

C$ 517

HamiltonPortland

YHM Hamilton - PDX Portland

YHMPDX

Hamilton

Thu 27/8

6:10 p.m.-1:50 p.m.

1 stop22h 40m

Portland

Tue 1/9

2:30 p.m.-5:15 p.m.

1 stop23h 45m

C$ 520

HamiltonSeattle

YHM Hamilton - SEA Seattle/Tacoma Intl

YHMSEA

Hamilton

Wed 2/9

6:10 p.m.-9:40 a.m.

1 stop18h 30m

Seattle/Tacoma Intl

Sat 12/9

7:35 p.m.-5:15 p.m.

1 stop18h 40m

C$ 527

HamiltonSeattle

YHM Hamilton - SEA Seattle/Tacoma Intl

YHMSEA

Hamilton

Wed 21/10

6:10 p.m.-9:40 a.m.

1 stop18h 30m

Seattle/Tacoma Intl

Sun 1/11

3:10 p.m.-4:17 p.m.

1 stop22h 07m

C$ 529

HamiltonSeattle

YHM Hamilton - SEA Seattle/Tacoma Intl

YHMSEA

Hamilton

Tue 1/9

6:10 p.m.-9:40 a.m.

1 stop18h 30m

Seattle/Tacoma Intl

Wed 9/9

7:35 p.m.-5:15 p.m.

1 stop18h 40m

C$ 529

HamiltonSeattle

YHM Hamilton - SEA Seattle/Tacoma Intl

YHMSEA

Hamilton

Sun 18/10

6:10 p.m.-6:45 p.m.

1 stop27h 35m

Seattle/Tacoma Intl

Sat 24/10

7:35 p.m.-5:17 p.m.

1 stop18h 42m

C$ 530

HamiltonSeattle

YHM Hamilton - SEA Seattle/Tacoma Intl

YHMSEA

Hamilton

Wed 23/9

6:10 p.m.-9:40 a.m.

1 stop18h 30m

Seattle/Tacoma Intl

Sun 27/9

10:30 a.m.-5:15 p.m.

1 stop27h 45m

C$ 547

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/8

Showing 1-10 of 35 resultsSorted by cheapest first
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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

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 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?

    For a flight from Hamilton to Washington, you will be flying from Hamilton. Hamilton (YHM) is just 10.9 km from the centre of the city.

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

    There are many flights that can get you from Hamilton, Ontario to State of Washington in 22h 40m. Fly via WestJet to get the fastest option. The distance from Hamilton, Ontario to State of Washington is about 3359 km.

  • What are the most popular routes from Hamilton, Ontario to State of Washington?

    When deciding which route to take from Hamilton, Ontario to State of Washington consider Hamilton - Seattle/Tacoma Intl, Hamilton - Portland or Hamilton - Bellingham as they are the most popular.

  • 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.

See more FAQs

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Alternative routes for Hamilton to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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Can Cheapflights find flights from Hamilton to Washington with no change fees?

Need flexible booking options for your flight to Washington from Hamilton? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Hamilton to Washington become cheaper?

Yes, Cheapflights offers price alerts on Hamilton to Washington flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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