Which airports can I use when flying from Hamilton to Seattle?

Flights from Hamilton to Seattle usually depart from Hamilton (YHM) and arrive at Seattle/Tacoma Intl (SEA).

Which cabin classes can I book on flights from Hamilton to Seattle?

Only Economy Class is available on flights from Hamilton to Seattle.

Which airports do connecting flights from Hamilton to Seattle pass through?

Connecting flights from Hamilton to Seattle most commonly pass through: • Calgary (YYC) – 75% of one-stop connections • Toronto Pearson Intl (YYZ) – 25% of one-stop connections

Can I save money by using flexible dates for flights from Hamilton to Seattle?

Yes. Flexible dates can save you up to 22% on flights from Hamilton to Seattle. Thursday is the cheapest departure day at C$ 437 round-trip on average, while Saturday is the most expensive at C$ 557, a difference of C$ 120. KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

Which popular places can I visit in Seattle?

Some of the most popular sights in Seattle are Lumen Field, T-Mobile Park, and Seattle Waterfront. These are among the most viewed places in Seattle on KAYAK.

How long does a flight from Hamilton to Seattle take?

There are currently no direct flights available from Hamilton to Seattle. Flights with 1 layover take between 8h 39m and 10h 10m in total, depending on the connection.

Do I need a passport to fly from Hamilton to Seattle?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Have flight prices from Hamilton to Seattle changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about C$ 694 to C$ 2,137. That means the highest observed fare was about 3x higher than the lowest one.

How are flight prices from Hamilton to Seattle looking right now?

One-way fares from Hamilton to Seattle are currently higher than usual. Average one-way flight prices are about C$ 377, which is 21% above the typical average for this route.

How much time can I save by choosing a different layover airport when travelling from Hamilton to Seattle?

Flying via Toronto Pearson Intl (YYZ) gives the shortest average 1-stop total travel time at 8h 39m, compared with 10h 10m via Calgary (YYC).

What is the time difference between Hamilton and Seattle?

Seattle is 3 hours behind Hamilton (Pacific Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Seattle/Tacoma Intl Airport (SEA)?

Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates averaging C$ 86 for economy cars. Top options include: • Fox • Europcar • Thrifty • Budget • Hertz

How much is a round-trip flight from Hamilton to Seattle?

Round-trip flights from Hamilton to Seattle typically range from C$ 480 to C$ 839. The lowest price found in the past 5 days was C$ 694, on WestJet.

Which airline is the cheapest to fly from Hamilton to Seattle?

WestJet (C$ 694) offered the cheapest round-trip ticket from Hamilton to Seattle in the last 5 days.

What’s the most popular layover airport when flying from Hamilton to Seattle?

Calgary (YYC) is the most popular layover for the Hamilton to Seattle route. 75% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via YYC.

What is the cheapest layover airport when flying from Hamilton to Seattle?

Flights via Toronto Pearson Intl (YYZ) offer the most affordable fares, with an average round-trip price of C$ 308. Based on KAYAK data over the past 3 months.

When flying from Hamilton to Seattle, which airport offers the shortest layover?

Toronto Pearson Intl (YYZ) had the shortest average connection time for Hamilton to Seattle layovers at 5h 38m over the past three months.

C$ 348 CHEAP FLIGHTS from Hamilton to Seattle (YHM - SEA)

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Cheapest round-trip

C$ 694

Typical prices: C$ 480-C$ 839

WestJet

Mon 17/12Sat 13/1

YHM - SEA • 1 stop

Cheapest one-way flights

C$ 348

Typical prices: C$ 302-C$ 317

WestJet

Sat 1/12

YHM - SEA • 1 stop

Top layover airports

Toronto Pearson Intl (YYZ)

Cheapest • Avg C$ 308 (round-trip)

Calgary (YYC)

Shortest trip • 10h 10m (one-way)

Insights

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Flight Deals

Cheap Flights from Hamilton to Seattle (YHM-SEA)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Hamilton to Seattle

Thu, 26 Nov - Mon, 30 Nov

3:25 p.m. - 1:40 p.m.YHM Hamilton-SEA Seattle/Tacoma Intl

25h 15m1 stop Calgary

2:30 p.m. - 2:25 p.m.SEA Seattle/Tacoma Intl-YHM Hamilton

20h 55m1 stop Calgary

C$ 694WestJet

Thu, 17 Dec - Wed, 13 Jan

3:25 p.m. - 1:40 p.m.YHM Hamilton-SEA Seattle/Tacoma Intl

25h 15m1 stop Calgary

2:30 p.m. - 2:25 p.m.SEA Seattle/Tacoma Intl-YHM Hamilton

20h 55m1 stop Calgary

C$ 694WestJet

Tue, 20 Apr - Sun, 25 Apr

4:25 p.m. - 2:40 p.m.YHM Hamilton-SEA Seattle/Tacoma Intl

25h 15m1 stop Calgary

7:35 p.m. - 5:15 p.m.SEA Seattle/Tacoma Intl-YHM Hamilton

18h 40m1 stop Calgary

C$ 698WestJet

Thu, 4 Feb - Mon, 8 Feb

3:25 p.m. - 1:40 p.m.YHM Hamilton-SEA Seattle/Tacoma Intl

25h 15m1 stop Calgary

2:30 p.m. - 2:25 p.m.SEA Seattle/Tacoma Intl-YHM Hamilton

20h 55m1 stop Calgary

C$ 708WestJet

Thu, 19 Nov - Mon, 23 Nov

3:25 p.m. - 1:40 p.m.YHM Hamilton-SEA Seattle/Tacoma Intl

25h 15m1 stop Calgary

2:30 p.m. - 2:25 p.m.SEA Seattle/Tacoma Intl-YHM Hamilton

20h 55m1 stop Calgary

C$ 711WestJet

Thu, 4 Feb - Mon, 8 Feb

3:25 p.m. - 1:40 p.m.YHM Hamilton-SEA Seattle/Tacoma Intl

25h 15m1 stop Calgary

2:30 p.m. - 2:25 p.m.SEA Seattle/Tacoma Intl-YHM Hamilton

20h 55m1 stop Calgary

C$ 711WestJet

Tue, 1 Dec - Thu, 20 May

3:25 p.m. - 1:40 p.m.YHM Hamilton-SEA Seattle/Tacoma Intl

25h 15m1 stop Calgary

7:35 p.m. - 5:15 p.m.SEA Seattle/Tacoma Intl-YHM Hamilton

18h 40m1 stop Calgary

C$ 711WestJet

Tue, 1 Dec - Wed, 26 May

3:25 p.m. - 1:40 p.m.YHM Hamilton-SEA Seattle/Tacoma Intl

25h 15m1 stop Calgary

7:35 p.m. - 5:15 p.m.SEA Seattle/Tacoma Intl-YHM Hamilton

18h 40m1 stop Calgary

C$ 711WestJet

Thu, 17 Dec - Wed, 13 Jan

3:25 p.m. - 1:40 p.m.YHM Hamilton-SEA Seattle/Tacoma Intl

25h 15m1 stop Calgary

2:30 p.m. - 2:25 p.m.SEA Seattle/Tacoma Intl-YHM Hamilton

20h 55m1 stop Calgary

C$ 711WestJet

Thu, 19 Nov - Mon, 23 Nov

3:25 p.m. - 1:40 p.m.YHM Hamilton-SEA Seattle/Tacoma Intl

25h 15m1 stop Calgary

2:30 p.m. - 2:25 p.m.SEA Seattle/Tacoma Intl-YHM Hamilton

20h 55m1 stop Calgary

C$ 728WestJet

Recent last minute flight deals from Hamilton to Seattle

Wed, 4 Nov - Fri, 13 Nov

7:05 a.m. - 12:57 p.m.YHM Hamilton-SEA Seattle/Tacoma Intl

8h 52m1 stop Vancouver Intl

11:26 a.m. - 12:08 a.m.SEA Seattle/Tacoma Intl-YHM Hamilton

9h 42m1 stop Vancouver Intl

C$ 1,283Multiple Airlines

Thu, 5 Nov - Sat, 6 Feb

3:25 p.m. - 7:35 a.m.YHM Hamilton-SEA Seattle/Tacoma Intl

19h 10m2 stops Calgary Vancouver Intl

2:20 p.m. - 2:25 p.m.SEA Seattle/Tacoma Intl-YHM Hamilton

21h 05m1 stop Calgary

C$ 1,292WestJet

Sun, 1 Nov - Wed, 4 Nov

3:25 p.m. - 1:40 p.m.YHM Hamilton-SEA Seattle/Tacoma Intl

25h 15m1 stop Calgary

2:30 p.m. - 2:25 p.m.SEA Seattle/Tacoma Intl-YHM Hamilton

20h 55m1 stop Calgary

C$ 1,296WestJet

Tue, 3 Nov - Sun, 8 Nov

7:05 a.m. - 12:57 p.m.YHM Hamilton-SEA Seattle/Tacoma Intl

8h 52m1 stop Vancouver Intl

11:26 a.m. - 12:08 a.m.SEA Seattle/Tacoma Intl-YHM Hamilton

9h 42m1 stop Vancouver Intl

C$ 1,308Multiple Airlines

Thu, 5 Nov - Mon, 9 Nov

3:25 p.m. - 7:35 a.m.YHM Hamilton-SEA Seattle/Tacoma Intl

19h 10m2 stops Calgary Vancouver Intl

2:30 p.m. - 2:25 p.m.SEA Seattle/Tacoma Intl-YHM Hamilton

20h 55m1 stop Calgary

C$ 1,308WestJet

Thu, 5 Nov - Sun, 15 Nov

7:05 a.m. - 12:57 p.m.YHM Hamilton-SEA Seattle/Tacoma Intl

8h 52m1 stop Vancouver Intl

11:26 a.m. - 12:08 a.m.SEA Seattle/Tacoma Intl-YHM Hamilton

9h 42m1 stop Vancouver Intl

C$ 1,334Multiple Airlines

Thu, 5 Nov - Mon, 9 Nov

3:25 p.m. - 7:35 a.m.YHM Hamilton-SEA Seattle/Tacoma Intl

19h 10m2 stops Calgary Vancouver Intl

2:30 p.m. - 2:25 p.m.SEA Seattle/Tacoma Intl-YHM Hamilton

20h 55m1 stop Calgary

C$ 1,367WestJet

Thu, 5 Nov - Sat, 6 Feb

3:25 p.m. - 7:35 a.m.YHM Hamilton-SEA Seattle/Tacoma Intl

19h 10m2 stops Calgary Vancouver Intl

7:52 p.m. - 2:25 p.m.SEA Seattle/Tacoma Intl-YHM Hamilton

15h 33m2 stops Vancouver Intl Calgary

C$ 1,371WestJet

Thu, 5 Nov - Mon, 9 Nov

3:25 p.m. - 7:35 a.m.YHM Hamilton-SEA Seattle/Tacoma Intl

19h 10m2 stops Calgary Vancouver Intl

2:30 p.m. - 2:25 p.m.SEA Seattle/Tacoma Intl-YHM Hamilton

20h 55m1 stop Calgary

C$ 1,381WestJet

Thu, 5 Nov - Sat, 6 Feb

3:25 p.m. - 1:40 p.m.YHM Hamilton-SEA Seattle/Tacoma Intl

25h 15m1 stop Calgary

2:20 p.m. - 2:25 p.m.SEA Seattle/Tacoma Intl-YHM Hamilton

21h 05m1 stop Calgary

C$ 1,395WestJet

Booking Insights

Price, demand, and travel trends for Hamilton to Seattle flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Hamilton to Seattle? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Hamilton to Seattle departing in december.

Find deals

Cheapest flight	C$ 348

One-way flight from Hamilton to Seattle

When to book flights from Hamilton to Seattle

Are your dates flexible? Find out the best times to travel from Hamilton to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Which cabin classes can I book on flights from Hamilton to Seattle?
Only Economy Class is available on flights from Hamilton to Seattle.
How long does a flight from Hamilton to Seattle take?
There are currently no direct flights available from Hamilton to Seattle. Flights with 1 layover take between 8h 39m and 10h 10m in total, depending on the connection.
Do I need a passport to fly from Hamilton to Seattle?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
Have flight prices from Hamilton to Seattle changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about C$ 694 to C$ 2,137. That means the highest observed fare was about 3x higher than the lowest one.
How are flight prices from Hamilton to Seattle looking right now?
One-way fares from Hamilton to Seattle are currently higher than usual. Average one-way flight prices are about C$ 377, which is 21% above the typical average for this route.
What car rental options are available at Seattle/Tacoma Intl Airport (SEA)?
Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates averaging C$ 86 for economy cars. Top options include:

• Fox
• Europcar
• Thrifty
• Budget
• Hertz
Which airports can I use when flying from Hamilton to Seattle?
Flights from Hamilton to Seattle usually depart from Hamilton (YHM) and arrive at Seattle/Tacoma Intl (SEA).
Which airports do connecting flights from Hamilton to Seattle pass through?
Connecting flights from Hamilton to Seattle most commonly pass through:

• Calgary (YYC) – 75% of one-stop connections
• Toronto Pearson Intl (YYZ) – 25% of one-stop connections
Can I save money by using flexible dates for flights from Hamilton to Seattle?
Yes. Flexible dates can save you up to 22% on flights from Hamilton to Seattle. Thursday is the cheapest departure day at C$ 437 round-trip on average, while Saturday is the most expensive at C$ 557, a difference of C$ 120.

KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.
How much time can I save by choosing a different layover airport when travelling from Hamilton to Seattle?
Flying via Toronto Pearson Intl (YYZ) gives the shortest average 1-stop total travel time at 8h 39m, compared with 10h 10m via Calgary (YYC).
What is the time difference between Hamilton and Seattle?
Seattle is 3 hours behind Hamilton (Pacific Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.
Which popular places can I visit in Seattle?
Some of the most popular sights in Seattle are Lumen Field, T-Mobile Park, and Seattle Waterfront. These are among the most viewed places in Seattle on KAYAK.

If your dates are flexible, aim for a Thursday departure and avoid flying on Saturday. On this route, Thursday flights average C$ 437, about C$ 120 less than Saturday fares (22% savings) based on the last 12 months.
If you're arriving late at night and need somewhere to stay, check out these hotels close to Seattle/Tacoma Intl Airport.

• Coast Gateway Hotel
• Seattle Airport Marriott
• Fairfield by Marriott Inn & Suites Seattle Sea-Tac Airport

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YHM - SEA

C$ 348 Find Cheap Flights from Hamilton to Seattle – Compare and Save

Everything you should know

Cheap Flights from Hamilton to Seattle (YHM-SEA)

Recent round-trip flight deals from Hamilton to Seattle

Recent one-way flight deals from Hamilton to Seattle

Recent last minute flight deals from Hamilton to Seattle

Price, demand, and travel trends for Hamilton to Seattle flights

How much is a round-trip flight from Hamilton to Seattle?

Which airline is the cheapest to fly from Hamilton to Seattle?

What’s the most popular layover airport when flying from Hamilton to Seattle?

What is the cheapest layover airport when flying from Hamilton to Seattle?

When flying from Hamilton to Seattle, which airport offers the shortest layover?

Key details for Hamilton to Seattle flights

Cheapest flight

When to book flights from Hamilton to Seattle

Your Hamilton to Seattle flight questions, answered

Your guide to booking Hamilton to Seattle flights

More options for your flight from Hamilton to Seattle

Complete your trip to Seattle with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Hamilton to Seattle

Find direct flights to and from Hamilton and Seattle

Flights from domestic origins to Seattle

Flights to other popular destinations

Find deals for your return flight