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Cheap flights from Hamilton, ON to Washington from C$ 260

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 24/5. Fares are subject to change and may not be available on all flights or dates of travel.
YHM — SEA
7 Jun — 14 Jun1
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 8 May 2026.

Wed 20/56:10 p.m.
YHM
-
SEA
1 stop27h 35m
WestJet
Mon 27/77:00 a.m.
SEA
-
YHM
1 stop7h 15m
WestJet
Deal found 3/5C$ 427
Fri 17/76:10 p.m.
YHM
-
SEA
1 stop18h 30m
WestJet
Tue 28/77:00 a.m.
SEA
-
YHM
1 stop7h 15m
WestJet
Deal found 3/5C$ 432
Mon 20/76:10 p.m.
YHM
-
SEA
1 stop18h 30m
WestJet
Tue 28/77:00 a.m.
SEA
-
YHM
1 stop7h 15m
WestJet
Deal found 3/5C$ 434
Fri 4/96:10 p.m.
YHM
-
SEA
1 stop27h 35m
WestJet
Tue 8/97:00 a.m.
SEA
-
YHM
1 stop7h 15m
WestJet
Deal found 3/5C$ 445
Fri 17/76:10 p.m.
YHM
-
SEA
1 stop27h 35m
WestJet
Sun 26/77:00 a.m.
SEA
-
YHM
1 stop7h 15m
WestJet
Deal found 3/5C$ 447
Sun 23/86:10 p.m.
YHM
-
SEA
1 stop18h 30m
WestJet
Mon 7/97:00 a.m.
SEA
-
YHM
1 stop7h 15m
WestJet
Deal found 3/5C$ 453
Wed 22/76:10 p.m.
YHM
-
SEA
1 stop18h 30m
WestJet
Mon 27/77:00 a.m.
SEA
-
YHM
1 stop7h 15m
WestJet
Deal found 5/5C$ 454
Wed 29/76:10 p.m.
YHM
-
SEA
1 stop18h 30m
WestJet
Tue 4/87:00 a.m.
SEA
-
YHM
1 stop7h 15m
WestJet
Deal found 4/5C$ 455
Fri 22/56:10 p.m.
YHM
-
SEA
1 stop18h 30m
WestJet
Tue 26/57:35 p.m.
SEA
-
YHM
1 stop18h 40m
WestJet
Deal found 3/5C$ 461
Fri 17/76:10 p.m.
YHM
-
SEA
1 stop18h 30m
WestJet
Sun 19/77:00 a.m.
SEA
-
YHM
1 stop7h 15m
WestJet
Deal found 7/5C$ 466
Sat 11/76:10 p.m.
YHM
-
SEA
1 stop18h 30m
WestJet
Sun 19/77:00 a.m.
SEA
-
YHM
1 stop7h 15m
WestJet
Deal found 4/5C$ 469
Mon 24/86:10 p.m.
YHM
-
PDX
1 stop22h 40m
WestJet
Mon 31/82:30 p.m.
PDX
-
YHM
1 stop23h 45m
WestJet
Deal found 5/5C$ 517

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 8 May 2026.

Round-trip from

C$ 427

One-way from

C$ 260

Popular in

June

Cheapest in

February

Average price

C$ 427
WestJet
  • WestJet
  • 20/5-27/7
  • 2 total stops
  • 34h 50m total
  • Hamilton to Washington
Search Deals
WestJet
  • WestJet
  • 24/5
  • 1 total stop
  • 18h 30m total
  • Hamilton to Washington
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 48 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 8 May 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

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Fri 4/9

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

1 stop27h 35m

Seattle/Tacoma Intl

Tue 8/9

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

1 stop7h 15m

C$ 445

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Fri 22/5

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

1 stop18h 30m

Seattle/Tacoma Intl

Tue 26/5

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

1 stop18h 40m

C$ 461

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Sat 11/7

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

1 stop18h 30m

Seattle/Tacoma Intl

Sun 19/7

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

1 stop7h 15m

C$ 470

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Fri 17/7

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

1 stop18h 30m

Seattle/Tacoma Intl

Mon 20/7

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

1 stop7h 15m

C$ 472

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Thu 13/8

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

1 stop18h 30m

Seattle/Tacoma Intl

Mon 17/8

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

1 stop7h 15m

C$ 473

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Mon 25/5

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

1 stop18h 30m

Seattle/Tacoma Intl

Fri 29/5

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

1 stop18h 40m

C$ 477

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Mon 18/5

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

1 stop27h 35m

Seattle/Tacoma Intl

Fri 22/5

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

1 stop18h 40m

C$ 477

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Thu 23/7

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

1 stop18h 30m

Seattle/Tacoma Intl

Sat 8/8

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

1 stop18h 40m

C$ 513

HamiltonPortland

YHM - PDX

YHMPDX

Hamilton

Mon 24/8

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

1 stop22h 40m

Portland

Mon 31/8

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

1 stop23h 45m

C$ 517

HamiltonPortland

YHM - PDX

YHMPDX

Hamilton

Sun 6/9

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

1 stop22h 40m

Portland

Sun 13/9

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

1 stop23h 45m

C$ 530

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/5

Showing 1-10 of 45 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 27h 35m. Fly via WestJet to get the fastest option. The distance from Hamilton, Ontario to State of Washington is about 3304 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

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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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