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$140+ Cheap flights from Seattle (SEA) 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 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YHM
janv. 26 — févr. 21
dim. 1/26
dim. 2/2
1 adult, Economy
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Cheap flight deals from Seattle to Hamilton

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Hamilton (YHM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated janvier 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$338
(Trip.com)

One-way from

$140
(Kiwi.com)
Provider with most accurate pricing for Seattle/Tacoma Intl-Hamilton flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Hamilton flights.
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From Seattle/Tacoma Intl to Hamilton
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One-way flight from Seattle/Tacoma Intl to Hamilton
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Find flight deals from Seattle to Hamilton

Cheapest flights from Seattle to Hamilton
Explore the most affordable flight options available from Seattle to Hamilton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on janvier 21, 2025.

This Trip.com deal was found by Cheapflights users on 1/21. 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.
ven. 5/302:05 pmSEA - YHM
1 stop7h 36mWestJet
lun. 6/26:00 amYHM - SEA
1 stop17h 28mWestJet
Deal found 1/21$338
This Mytrip deal was found by Cheapflights users on 1/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 3/57:05 pmSEA - YHM
2 stops19h 08mMultiple Airlines
mer. 3/126:05 pmYHM - SEA
2 stops18h 55mMultiple Airlines
Deal found 1/20$430

Find flights from Seattle to Hamilton within your budget

Customize your flight search to find flights from Seattle 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 janvier 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

ven. 5/30

2:05 pm-12:41 am

1 stop7h 36m

Hamilton

lun. 6/2

6:00 am-8:28 pm

1 stop17h 28m

$338

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

mer. 3/5

7:05 pm-5:13 pm

2 stops19h 08m

Hamilton

mer. 3/12

6:05 pm-10:00 am

2 stops18h 55m

$430

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

lun. 3/17

11:30 am-5:13 pm

2 stops26h 43m

$140

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

lun. 3/17

12:41 pm-5:13 pm

3 stops25h 32m

$170

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Compare providers for flights from Seattle to Hamilton

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Hamilton in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Hamilton, Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Hamilton, Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Hamilton, Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Hamilton, Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Hamilton, Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Hamilton

Have a flexible travel schedule? Discover the best time to fly to Hamilton from Seattle 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.

Travel insights for flights from Seattle to Hamilton

Get recent, data-driven insights about flights from Seattle to Hamilton including ideal travel times, pricing trends, and more.

Rainfall in Hamilton by month

Plan your trip to Hamilton by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Hamilton, Ontario ranges from 2.3 - 4.0 inches per month. July is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Hamilton, Ontario when rainfall is around 2.3 in.

Temperature in Hamilton by month

Plan your trip to Hamilton by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Hamilton, Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Hamilton

Get insights into the airlines that provide service to Hamilton. 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 Hamilton. Reviews last updated janvier 21, 2025.
WestJet
7.2
Good
2,829 reviews

Overall

7.2

Comfort

7.1

Boarding

7.4

Food

6.2

Crew

7.9

Entertainment

6.2

Reviews

1 / 10

On time departure. Good service on board. Comfort Plus seating was comfortable.

WestJet
7.2
Good
2,829 reviews
WestJet
7.2
Good
2,829 reviews

Overall

7.2

Comfort

7.1

Boarding

7.4

Food

6.2

Crew

7.9

Entertainment

6.2

Reviews

1 / 10

On time departure. Good service on board. Comfort Plus seating was comfortable.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Hamilton. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle 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.

Browse thousands of different options on Cheapflights for your next trip

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