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Cheap flights from Washington to Hamilton, ON from C$ 264

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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YHM
24 Jul — 31 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Washington to Hamilton

Enter your travel dates to find the best prices.

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 24 June 2026.

Sat 11/77:00 a.m.
SEA
-
YHM
1 stop7h 15m
WestJet
Fri 17/76:10 p.m.
YHM
-
SEA
1 stop18h 30m
WestJet
Deal found 21/6C$ 600
Mon 21/97:35 p.m.
SEA
-
YHM
1 stop18h 40m
WestJet
Mon 28/96:10 p.m.
YHM
-
SEA
1 stop18h 30m
WestJet
Deal found 22/6C$ 621
Thu 20/87:00 a.m.
SEA
-
YHM
1 stop7h 15m
WestJet
Mon 24/86:10 p.m.
YHM
-
SEA
1 stop18h 30m
WestJet
Deal found 22/6C$ 631
Sun 19/77:00 a.m.
SEA
-
YHM
1 stop7h 15m
WestJet
Sun 26/76:10 p.m.
YHM
-
SEA
1 stop18h 30m
WestJet
Deal found 19/6C$ 633
Fri 4/97:00 a.m.
SEA
-
YHM
1 stop7h 15m
WestJet
Sun 6/96:10 p.m.
YHM
-
SEA
1 stop27h 35m
WestJet
Deal found 21/6C$ 637
Sat 4/77:00 a.m.
SEA
-
YHM
1 stop7h 15m
WestJet
Mon 6/76:10 p.m.
YHM
-
SEA
1 stop29h 50m
WestJet
Deal found 20/6C$ 643
Wed 22/77:00 a.m.
SEA
-
YHM
1 stop7h 15m
WestJet
Mon 27/76:10 p.m.
YHM
-
SEA
1 stop18h 30m
WestJet
Deal found 21/6C$ 661
Fri 2/1010:30 a.m.
SEA
-
YHM
2 stops8h 39m
Multiple Airlines
Fri 9/106:10 p.m.
YHM
-
SEA
1 stop18h 30m
Multiple Airlines
Deal found 19/6C$ 665
Tue 14/77:00 a.m.
SEA
-
YHM
1 stop7h 15m
WestJet
Fri 17/76:10 p.m.
YHM
-
SEA
1 stop27h 35m
WestJet
Deal found 19/6C$ 668
Sat 25/77:00 a.m.
SEA
-
YHM
1 stop7h 15m
WestJet
Sat 15/86:15 p.m.
YHM
-
SEA
1 stop18h 25m
WestJet
Deal found 22/6C$ 670
Fri 24/77:35 p.m.
SEA
-
YHM
1 stop18h 40m
WestJet
Sat 1/86:10 p.m.
YHM
-
SEA
1 stop18h 30m
WestJet
Deal found 22/6C$ 672
Fri 24/75:37 p.m.
GEG
-
YHM
2 stops20h 38m
WestJet
Sun 26/76:10 p.m.
YHM
-
GEG
2 stops32h 45m
WestJet
Deal found 20/6C$ 1,589

Find flight deals from Washington to Hamilton

Keep the following information in mind while searching for Washington to Hamilton flight deals. Data was last updated 24 June 2026.

Round-trip from

C$ 600

One-way from

C$ 264

Popular in

July

Cheapest in

January

Average price

C$ 716
WestJet
  • WestJet
  • 11/7-17/7
  • 2 total stops
  • 25h 45m total
  • Washington to Hamilton
Search Deals
WestJet
  • WestJet
  • 6/9
  • 1 total stop
  • 7h 15m total
  • Washington to Hamilton
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (C$ 265 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 629,999 searches. Data last updated 24 June 2026.
Use the filters below to find and compare flights from Washington to Hamilton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Mon 21/9

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

1 stop18h 40m

Hamilton

Mon 28/9

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

1 stop18h 30m

C$ 621

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Fri 21/8

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

1 stop7h 15m

Hamilton

Mon 24/8

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

1 stop18h 30m

C$ 631

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Fri 4/9

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

1 stop7h 15m

Hamilton

Sun 6/9

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

1 stop27h 35m

C$ 637
Quickest round-trip

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Sat 25/7

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

1 stop7h 15m

Hamilton

Sat 15/8

6:15 p.m.-9:40 a.m.

1 stop18h 25m

C$ 670

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Sat 10/10

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

1 stop18h 40m

Hamilton

Mon 12/10

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

1 stop27h 35m

C$ 672

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Sun 19/7

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

1 stop7h 15m

Hamilton

Sat 5/9

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

1 stop27h 35m

C$ 674

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Wed 9/9

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

1 stop27h 45m

Hamilton

Fri 18/9

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

1 stop18h 30m

C$ 690

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Sat 22/8

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

1 stop7h 15m

Hamilton

Sat 29/8

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

1 stop18h 30m

C$ 692

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Fri 31/7

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

1 stop7h 15m

Hamilton

Wed 5/8

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

1 stop18h 30m

C$ 705

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Mon 13/7

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

1 stop18h 40m

Hamilton

Wed 15/7

6:10 p.m.-9:00 p.m.

1 stop29h 50m

C$ 718

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/6

Showing 1-10 of 28 resultsSorted by cheapest first
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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) is the airport you will fly into if you book a flight from Washington to Hamilton. It is only a 10.9 km journey from Hamilton (YHM) to Hamilton’s city centre.

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

    WestJet can get you from State of Washington to Hamilton, Ontario in just under 18h 40m. Your travel time can differ by up to . There are 3304 km 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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Alternative routes for Washington to Hamilton

See prices for flight routes from nearby airports that may be better suited for you.
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San Francisco to Pierre Elliott Trudeau Intl flights
Dallas/Fort Worth to Pierre Elliott Trudeau Intl flights
Boston to Pierre Elliott Trudeau Intl flights
Midway to Toronto Island flights
George Bush Intcntl to Pearson Intl flights
O'Hare Intl to Pierre Elliott Trudeau Intl flights
Philadelphia to Pearson Intl flights
Midway to Pearson Intl flights
O'Hare Intl to Toronto Island flights
Minneapolis to Pearson Intl flights
San Diego to Pearson Intl flights
Atlanta to Pierre Elliott Trudeau Intl flights
Baltimore to Pierre Elliott Trudeau Intl flights
Ontario to Pearson Intl flights
Minneapolis to Pierre Elliott Trudeau Intl flights
Los Angeles to Toronto Island flights
San Francisco to Toronto Island flights
Raleigh to Pearson Intl flights
Charlotte to Pearson Intl flights
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Tampa to Pearson Intl flights

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How does Cheapflights help users find flights from Washington to Hamilton?

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Why should you use Cheapflights to find cheap flight tickets from Washington to Hamilton?

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Yes! Cheapflights helps users easily find flights from Washington to Hamilton with no change fees.

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Yes, Cheapflights offers price alerts on Washington to Hamilton 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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