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Cheap flights from Hamilton, ON to Washington from C$ 261

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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
YHM — SEA
21 Apr — 28 Apr1
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 22 March 2026.

Mon 8/66:10 p.m.
YHM
-
SEA
1 stop27h 35m
WestJet
Tue 16/67:00 a.m.
SEA
-
YHM
1 stop7h 15m
WestJet
Deal found 21/3C$ 432
Thu 4/66:10 p.m.
YHM
-
SEA
1 stop18h 30m
WestJet
Tue 23/67:00 a.m.
SEA
-
YHM
1 stop7h 15m
WestJet
Deal found 20/3C$ 443
Fri 1/56:10 p.m.
YHM
-
SEA
1 stop18h 30m
WestJet
Sat 9/510:30 a.m.
SEA
-
YHM
1 stop27h 45m
WestJet
Deal found 21/3C$ 458
Mon 27/46:10 p.m.
YHM
-
SEA
1 stop18h 30m
WestJet
Fri 1/57:35 p.m.
SEA
-
YHM
1 stop18h 40m
WestJet
Deal found 22/3C$ 460
Sun 26/46:10 p.m.
YHM
-
SEA
1 stop18h 30m
WestJet
Wed 29/410:30 a.m.
SEA
-
YHM
1 stop27h 45m
WestJet
Deal found 20/3C$ 461
Sat 2/56:10 p.m.
YHM
-
SEA
1 stop18h 30m
WestJet
Sat 9/510:30 a.m.
SEA
-
YHM
1 stop27h 45m
WestJet
Deal found 22/3C$ 466
Sun 10/56:10 p.m.
YHM
-
SEA
1 stop27h 35m
WestJet
Sat 16/57:35 p.m.
SEA
-
YHM
1 stop18h 40m
WestJet
Deal found 18/3C$ 468
Tue 14/45:50 a.m.
YHM
-
SEA
1 stop11h 29m
WestJet
Tue 21/43:10 p.m.
SEA
-
YHM
1 stop23h 06m
WestJet
Deal found 19/3C$ 469
Fri 1/56:10 p.m.
YHM
-
SEA
1 stop18h 30m
WestJet
Sun 3/510:30 a.m.
SEA
-
YHM
1 stop27h 45m
WestJet
Deal found 18/3C$ 476
Tue 1/96:10 p.m.
YHM
-
PDX
1 stop22h 40m
WestJet
Wed 30/92:30 p.m.
PDX
-
YHM
1 stop23h 45m
WestJet
Deal found 18/3C$ 752
Fri 5/66:10 p.m.
YHM
-
PDX
1 stop22h 40m
WestJet
Tue 9/62:30 p.m.
PDX
-
YHM
1 stop23h 45m
WestJet
Deal found 22/3C$ 831
Fri 29/57:00 a.m.
YHM
-
PDX
2 stops9h 50m
Multiple Airlines
Sun 31/59:46 p.m.
PDX
-
YHM
1 stop18h 49m
Multiple Airlines
Deal found 20/3C$ 878

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 22 March 2026.

Round-trip from

C$ 432

One-way from

C$ 261

Popular in

June

Cheapest in

February

Average price

C$ 457
WestJet
  • WestJet
  • 8/6-16/6
  • 2 total stops
  • 34h 50m total
  • Hamilton to Washington
Search Deals
WestJet
  • WestJet
  • 14/4
  • 1 total stop
  • 11h 29m total
  • Hamilton to Washington
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 33 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 22 March 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

Sun 7/6

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

1 stop18h 30m

Seattle/Tacoma Intl

Thu 11/6

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

1 stop18h 40m

C$ 477

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Fri 1/5

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

1 stop18h 30m

Seattle/Tacoma Intl

Sat 9/5

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

1 stop27h 45m

C$ 482

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Fri 12/6

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

1 stop27h 35m

Seattle/Tacoma Intl

Fri 19/6

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

1 stop18h 40m

C$ 549

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Mon 4/5

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

1 stop27h 35m

Seattle/Tacoma Intl

Wed 6/5

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

1 stop27h 45m

C$ 556

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Tue 14/4

5:50 a.m.-2:19 p.m.

1 stop11h 29m

Seattle/Tacoma Intl

Tue 21/4

3:10 p.m.-5:16 p.m.

1 stop23h 06m

C$ 605

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Thu 23/4

6:10 p.m.-2:19 p.m.

1 stop23h 09m

Seattle/Tacoma Intl

Tue 28/4

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

1 stop27h 45m

C$ 613

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Wed 27/5

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

1 stop18h 30m

Seattle/Tacoma Intl

Sun 28/6

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

1 stop7h 15m

C$ 626
Quickest round-trip

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Thu 11/6

7:00 a.m.-6:45 p.m.

2 stops14h 45m

Seattle/Tacoma Intl

Wed 24/6

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

1 stop7h 15m

C$ 737

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Thu 28/5

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

1 stop18h 30m

Seattle/Tacoma Intl

Mon 1/6

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

1 stop18h 40m

C$ 741

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Mon 27/4

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

1 stop18h 30m

Seattle/Tacoma Intl

Fri 1/5

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

1 stop18h 40m

C$ 741

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/3

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

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

Currently, December is the cheapest month in which you can book a flight from Hamilton, Ontario to State of Washington (average of C$ 180). Flying from Hamilton, Ontario to State of Washington in July is currently the most expensive (average of C$ 324). 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.

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington. Reviews last updated 22 March 2026.
Check out reviews from past customers who have flown with WestJet from Hamilton to Washington to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
WestJet
7.2
Good
3,300 reviews
Check prices

Comfort

7.0

Crew

7.9

Entertainment

6.1

Boarding

7.4

Food

6.2

Overall

7.2

Reviews

1 / 20
6.0
Good

Deb,Jan 2025

YYZ - YYC

Boarding went smoothly, you didn't accept debit card for food on flight
WestJet
7.2
Good
3,300 reviews
WestJet
7.2
Good
3,300 reviews
Check prices

Comfort

7.0

Crew

7.9

Entertainment

6.1

Boarding

7.4

Food

6.2

Overall

7.2

Reviews

1 / 20
6.0
Good

Deb,Jan 2025

YYZ - YYC

Boarding went smoothly, you didn't accept debit card for food on flight

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 18h 30m. 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.

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

    Currently, December is the cheapest month in which you can book a flight from Hamilton, Ontario to State of Washington (average of C$ 180). Flying from Hamilton, Ontario to State of Washington in July is currently the most expensive (average of C$ 324). 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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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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Top airline flying from Hamilton to Washington

Discover the top airline that operate flights from Hamilton to Washington. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 22 March 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 213AverageC$ 377FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

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

Cheapflights helps you search for flights from Hamilton to Washington via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Hamilton to Washington for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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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