When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Hamilton Airport?

Prices for flights from Seattle/Tacoma Intl Airport to Hamilton Airport are updated daily.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Hamilton Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Hamilton Airport.

What documentation or ID do you need to fly to Hamilton Airport?

The required travel and health documents for your Hamilton Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Hamilton Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$122 Cheap Flights from Seattle to Hamilton in 2025/26

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

5:50 am - 7:00 pmSEA-YHM

10h 10m1 stop

8:15 am - 7:16 pmYHM-SEA

14h 01m1 stop

$378Multiple Airlines

Find Deal

Fri, Nov 21 - Sun, Nov 23

5:50 am - 7:00 pmSEA-YHM

10h 10m1 stop

8:15 am - 2:31 pmYHM-SEA

9h 16m1 stop

$391Multiple Airlines

Find Deal

Sat, Nov 15 - Sat, Nov 22

5:50 am - 7:00 pmSEA-YHM

10h 10m1 stop

8:15 am - 7:16 pmYHM-SEA

14h 01m1 stop

$393Multiple Airlines

Find Deal

Sat, Nov 15 - Sat, Nov 22

3:10 pm - 5:17 pmSEA-YHM

23h 07m1 stop

6:10 pm - 2:20 pmYHM-SEA

23h 10m1 stop

$403WestJet

Find Deal

Sun, Nov 30 - Sun, Dec 7

3:10 pm - 5:17 pmSEA-YHM

23h 07m1 stop

6:10 pm - 2:20 pmYHM-SEA

23h 10m1 stop

$410WestJet

Find Deal

Sun, Nov 30 - Sun, Dec 7

5:45 am - 7:00 pmSEA-YHM

10h 15m1 stop

8:15 am - 7:16 pmYHM-SEA

14h 01m1 stop

$415Multiple Airlines

Find Deal

Mon, Dec 1 - Mon, Dec 8

5:50 am - 7:00 pmSEA-YHM

10h 10m1 stop

8:15 am - 7:16 pmYHM-SEA

14h 01m1 stop

$421Multiple Airlines

Find Deal

Sat, Nov 15 - Sat, Nov 22

3:10 pm - 5:17 pmSEA-YHM

23h 07m1 stop

6:10 pm - 2:20 pmYHM-SEA

23h 10m1 stop

$422WestJet

Find Deal

Sun, Nov 30 - Sun, Dec 7

5:50 am - 7:00 pmSEA-YHM

10h 10m1 stop

8:15 am - 7:16 pmYHM-SEA

14h 01m1 stop

$429Multiple Airlines

Find Deal

Sun, Nov 16 - Sun, Nov 23

5:50 am - 7:00 pmSEA-YHM

10h 10m1 stop

8:15 am - 2:31 pmYHM-SEA

9h 16m1 stop

$440Multiple Airlines

Find Deal

Sat, Nov 15 - Sat, Nov 22

WestJet flights from Seattle to Hamilton, Ontario

Our best WestJet deals on Seattle to Hamilton, Ontario flight tickets

WestJet

Oct 21

SEA7:05 amSeattle/Tacoma Intl

14h 35m

1 stop

YHM12:40 amHamilton

Oct 25

YHM6:00 amHamilton

9h 59m

1 stop

SEA12:59 pmSeattle/Tacoma Intl

$299

Find similar

WestJet

Nov 30

SEA3:10 pmSeattle/Tacoma Intl

23h 07m

1 stop

YHM5:17 pmHamilton

Dec 7

YHM6:10 pmHamilton

23h 10m

1 stop

SEA2:20 pmSeattle/Tacoma Intl

$403

Find similar

WestJet

Nov 30

SEA3:10 pmSeattle/Tacoma Intl

23h 07m

1 stop

YHM5:17 pmHamilton

Dec 7

YHM6:10 pmHamilton

23h 10m

1 stop

SEA2:20 pmSeattle/Tacoma Intl

$410

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Seattle to Hamilton, Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Fri 11/21

5:50 am-7:00 pm

1 stop10h 10m

Hamilton

Sun 11/23

8:15 am-7:16 pm

1 stop14h 01m

$378

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Sat 11/15

5:50 am-7:00 pm

1 stop10h 10m

Hamilton

Sat 11/22

8:15 am-2:31 pm

1 stop9h 16m

$391

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Sat 11/15

5:50 am-7:00 pm

1 stop10h 10m

Hamilton

Sat 11/22

8:15 am-7:16 pm

1 stop14h 01m

$393

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Sun 11/30

3:10 pm-5:17 pm

1 stop23h 07m

Hamilton

Sun 12/7

6:10 pm-2:20 pm

1 stop23h 10m

$403

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Sun 11/30

3:10 pm-5:17 pm

1 stop23h 07m

Hamilton

Sun 12/7

6:10 pm-2:20 pm

1 stop23h 10m

$410

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Mon 12/1

5:45 am-7:00 pm

1 stop10h 15m

Hamilton

Mon 12/8

8:15 am-7:16 pm

1 stop14h 01m

$415

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Sat 11/15

5:50 am-7:00 pm

1 stop10h 10m

Hamilton

Sat 11/22

8:15 am-7:16 pm

1 stop14h 01m

$421

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Sun 11/30

3:10 pm-5:17 pm

1 stop23h 07m

Hamilton

Sun 12/7

6:10 pm-2:20 pm

1 stop23h 10m

$422

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Sun 11/16

5:50 am-7:00 pm

1 stop10h 10m

Hamilton

Sun 11/23

8:15 am-7:16 pm

1 stop14h 01m

$429

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Sat 11/15

5:50 am-7:00 pm

1 stop10h 10m

Hamilton

Sat 11/22

8:15 am-2:31 pm

1 stop9h 16m

$440

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Seattle to Hamilton, Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Seattle/Tacoma Intl to Hamilton?

WestJet is the most popular carrier operating from Seattle/Tacoma Intl to Hamilton

What airlines fly to Hamilton, Ontario?

Alaska Airlines, Air Canada and WestJet are the top three most popular airlines that fly to Hamilton, Ontario from Seattle according to our data. Alaska Airlines is the first choice among our users, with 55% of people opting to fly with this airline when traveling to Hamilton, Ontario. Keep in mind that there are 5 different airlines that fly to Hamilton, Ontario on a routine basis, so you have a few additional options to choose from.

When to book flights from Seattle to Hamilton, Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Hamilton, Ontario according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Seattle to Hamilton, Ontario (SEA to YHM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Hamilton, Ontario

Direct flights	None

There are no direct flights from Seattle to Hamilton, Ontario. There are no popular flight routes from Seattle to Hamilton, Ontario.

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How far is Seattle/Tacoma Intl to Hamilton by plane?
The distance between Seattle/Tacoma Intl and Hamilton is about 2054.4 mi. A reasonable flight in good conditions will take 7h 10m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Hamilton Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Hamilton Airport are updated daily.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Hamilton Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Hamilton Airport.
What documentation or ID do you need to fly to Hamilton Airport?
The required travel and health documents for your Hamilton Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Hamilton Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Hamilton?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Hamilton for you.

Can I find flights from Seattle to Hamilton with flexible booking policies on momondo?

All flight searches from Seattle to Hamilton on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Seattle to Hamilton?

momondo helps you find the best flight between Seattle and Hamilton by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to Hamilton right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Seattle to Hamilton flights. All you need is a valid email address and we will do the rest; it is that quick and easy.