$183+ Cheap flights from Seattle (SEA) to Hamilton, ON (YHM)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YHM
Oct 10 — Oct 171
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Hamilton with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to Hamilton
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to HamiltonExplore 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 September 10, 2026.
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 September 10, 2026.
This Justfly.com deal was found by Cheapflights users on 9/9. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:35 pm -
1 stop18h 40m
Mon 10/126:10 pm -
1 stop27h 35m
Deal found 9/9![WestJet logo]()
$379
This FlightHub deal was found by Cheapflights users on 9/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:35 pm -
1 stop18h 40m
Tue 10/66:10 pm -
1 stop18h 30m
Deal found 9/9![WestJet logo]()
$408
This Trip.com deal was found by Cheapflights users on 9/9. 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.
Wed 9/237:35 pm -
1 stop18h 40m
Sun 9/276:10 pm -
1 stop18h 30m
Deal found 9/9![WestJet logo]()
$410
This Trip.com deal was found by Cheapflights users on 9/8. 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.
Tue 9/227:35 pm -
1 stop18h 40m
Fri 9/256:10 pm -
1 stop18h 30m
Deal found 9/8![WestJet logo]()
$412
This Justfly.com deal was found by Cheapflights users on 9/6. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:35 pm -
1 stop18h 40m
Tue 10/66:10 pm -
1 stop18h 30m
Deal found 9/6![WestJet logo]()
$413
This Trip.com deal was found by Cheapflights users on 9/8. 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.
Tue 10/67:35 pm -
1 stop18h 40m
Fri 10/96:10 pm -
1 stop18h 30m
Deal found 9/8![WestJet logo]()
$417
This Trip.com deal was found by Cheapflights users on 9/6. 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.
Tue 9/157:35 pm -
1 stop18h 40m
Fri 9/186:10 pm -
1 stop18h 30m
Deal found 9/6![WestJet logo]()
$418
This FlightHub deal was found by Cheapflights users on 9/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:35 pm -
1 stop18h 40m
Sun 10/116:10 pm -
1 stop18h 30m
Deal found 9/6![WestJet logo]()
$429
This Trip.com deal was found by Cheapflights users on 9/7. 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.
Wed 11/252:30 pm -
1 stop20h 55m
Tue 12/13:25 pm -
1 stop25h 15m
Deal found 9/7![WestJet logo]()
$432
This FlightHub deal was found by Cheapflights users on 9/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1510:30 am -
1 stop27h 45m
Sun 10/186:10 pm -
1 stop27h 35m
Deal found 9/9![WestJet logo]()
$434
Best flights from Seattle to HamiltonDiscover carefully curated flight deals from Seattle to Hamilton that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
Discover carefully curated flight deals from Seattle to Hamilton that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
This FlightHub deal was found by Cheapflights users on 9/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:35 pm -
1 stop18h 40m
Mon 10/126:10 pm -
1 stop27h 35m
Deal found 9/8![WestJet logo]()
$384
This Mytrip deal was found by Cheapflights users on 9/5. 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.
Tue 9/297:35 pm -
2 stops16h 30m
Fri 10/27:00 am -
2 stops14h 45m
Deal found 9/5![Multiple Airlines logo]()
$453
This Trip.com deal was found by Cheapflights users on 9/9. 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.
Wed 9/237:35 pm -
1 stop18h 40m
Sun 9/276:10 pm -
1 stop18h 30m
Deal found 9/9![WestJet logo]()
$410
This Trip.com deal was found by Cheapflights users on 9/8. 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.
Thu 10/87:35 pm -
1 stop18h 40m
Tue 10/136:10 pm -
1 stop18h 30m
Deal found 9/8![WestJet logo]()
$417
This Mytrip deal was found by Cheapflights users on 9/6. 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.
Sat 10/37:35 pm -
2 stops16h 30m
Tue 10/66:05 am -
3 stops15h 40m
Deal found 9/6![Multiple Airlines logo]()
$464
This FlightHub deal was found by Cheapflights users on 9/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:35 pm -
1 stop18h 40m
Sun 10/116:10 pm -
1 stop18h 30m
Deal found 9/6![WestJet logo]()
$429
This Mytrip deal was found by Cheapflights users on 9/6. 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.
Thu 10/810:30 am -
1 stop27h 45m
Mon 10/196:05 am -
2 stops15h 40m
Deal found 9/6![Multiple Airlines logo]()
$484
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:35 pm -
1 stop24h 38m
Tue 10/136:55 pm -
1 stop17h 45m
Deal found 9/10![Multiple Airlines logo]()
$497
This oojo deal was found by Cheapflights users on 9/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2310:30 am -
1 stop27h 45m
Fri 9/256:10 pm -
1 stop18h 30m
Deal found 9/9![WestJet logo]()
$481
Last-minute flights from Seattle to HamiltonDiscover last-minute flight deals from Seattle to Hamilton. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Hamilton. Data last updated September 10, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 9/6. 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.
Tue 9/157:35 pm -
1 stop18h 40m
Fri 9/186:10 pm -
1 stop18h 30m
Deal found 9/6![WestJet logo]()
$418
This Justfly.com deal was found by Cheapflights users on 9/6. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:35 pm -
1 stop18h 40m
Tue 10/66:10 pm -
1 stop18h 30m
Deal found 9/6![WestJet logo]()
$413
This Trip.com deal was found by Cheapflights users on 9/8. 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.
Tue 9/227:35 pm -
1 stop18h 40m
Fri 9/256:10 pm -
1 stop18h 30m
Deal found 9/8![WestJet logo]()
$412
This FlightHub deal was found by Cheapflights users on 9/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:35 pm -
1 stop18h 40m
Wed 10/76:10 pm -
1 stop18h 30m
Deal found 9/9![WestJet logo]()
$408
This Trip.com deal was found by Cheapflights users on 9/9. 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.
Wed 9/237:35 pm -
1 stop18h 40m
Sun 9/276:10 pm -
1 stop18h 30m
Deal found 9/9![WestJet logo]()
$410
This Trip.com deal was found by Cheapflights users on 9/8. 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.
Tue 10/67:35 pm -
1 stop18h 40m
Fri 10/96:10 pm -
1 stop18h 30m
Deal found 9/8![WestJet logo]()
$417
This Justfly.com deal was found by Cheapflights users on 9/9. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:35 pm -
1 stop18h 40m
Mon 10/126:10 pm -
1 stop27h 35m
Deal found 9/9![WestJet logo]()
$379
This FlightHub deal was found by Cheapflights users on 9/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:35 pm -
1 stop18h 40m
Sun 10/116:10 pm -
1 stop18h 30m
Deal found 9/6![WestJet logo]()
$429
This FlightHub deal was found by Cheapflights users on 9/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1510:30 am -
1 stop27h 45m
Sun 10/186:10 pm -
1 stop27h 35m
Deal found 9/9![WestJet logo]()
$434
This Justfly.com deal was found by Cheapflights users on 9/9. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:35 pm -
1 stop18h 40m
Tue 10/274:25 pm -
1 stop25h 15m
Deal found 9/9![WestJet logo]()
$435
One-way flights from Seattle to HamiltonSearch for one-way flight options from Seattle to Hamilton. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
Search for one-way flight options from Seattle to Hamilton. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Trip.com deal was found by Cheapflights users on 9/10. 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.
Sat 9/267:35 pm -
1 stop18h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![WestJet logo]()
$183
This Trip.com deal was found by Cheapflights users on 9/9. 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.
Sat 10/177:35 pm -
1 stop18h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![WestJet logo]()
$184
This Kissandfly.com deal was found by Cheapflights users on 9/9. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/187:35 pm -
1 stop18h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![WestJet logo]()
$185
This FlightHub deal was found by Cheapflights users on 9/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:35 pm -
1 stop18h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![WestJet logo]()
$186
This Trip.com deal was found by Cheapflights users on 9/6. 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.
Thu 9/177:35 pm -
1 stop18h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![WestJet logo]()
$187
This Trip.com deal was found by Cheapflights users on 9/8. 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.
Sat 11/285:48 pm -
1 stop17h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$190
This Trip.com deal was found by Cheapflights users on 9/6. 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.
Tue 10/137:35 pm -
1 stop18h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![WestJet logo]()
$192
This Trip.com deal was found by Cheapflights users on 9/10. 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.
Tue 11/35:58 pm -
1 stop20h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$193
This FlightHub deal was found by Cheapflights users on 9/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/277:35 pm -
1 stop18h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![WestJet logo]()
$195
This FlightHub deal was found by Cheapflights users on 9/5. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/810:30 am -
1 stop27h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![WestJet logo]()
$197
This Trip.com deal was found by Cheapflights users on 9/6. 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.
Thu 10/157:35 pm -
1 stop18h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![WestJet logo]()
$199
Find 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 September 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $379 (Justfly.com) |
One-way from | $183 (Trip.com) |
Popular in | July |
Cheapest in | January |
Average price | $580 |
Cheapflights Fare Finder
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 7,457,451 searches. Data last updated September 10, 2026.
Use the filters below to find and compare flights from Seattle to Hamilton that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleHamilton
SEA Seattle/Tacoma Intl - YHM Hamilton
SEAYHM
Seattle/Tacoma Intl
Sat 10/17
7:35 pm-5:15 pm
1 stop18h 40m
Hamilton
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$184
SeattleHamilton
SEA Seattle/Tacoma Intl - YHM Hamilton
SEAYHM
Seattle/Tacoma Intl
Sat 10/24
7:35 pm-3:25 pm
1 stop16h 50m
Hamilton
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$184
SeattleHamilton
SEA Seattle/Tacoma Intl - YHM Hamilton
SEAYHM
Seattle/Tacoma Intl
Sat 9/19
7:35 pm-5:15 pm
1 stop18h 40m
Hamilton
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$186
SeattleHamilton
SEA Seattle/Tacoma Intl - YHM Hamilton
SEAYHM
Seattle/Tacoma Intl
Thu 9/17
7:35 pm-5:15 pm
1 stop18h 40m
Hamilton
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$187
SeattleHamilton
SEA Seattle/Tacoma Intl - YHM Hamilton
SEAYHM
Seattle/Tacoma Intl
Thu 10/8
10:30 am-5:15 pm
1 stop27h 45m
Hamilton
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$197
SeattleHamilton
SEA Seattle/Tacoma Intl - YHM Hamilton
SEAYHM
Seattle/Tacoma Intl
Thu 10/15
7:35 pm-5:15 pm
1 stop18h 40m
Hamilton
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$208
Quickest round-trip
SeattleHamilton
SEA Seattle/Tacoma Intl - YHM Hamilton
SEAYHM
Seattle/Tacoma Intl
Sun 10/4
10:30 am-10:09 pm
2 stops8h 39m
Hamilton
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$227
SeattleHamilton
SEA Seattle/Tacoma Intl - YHM Hamilton
SEAYHM
Seattle/Tacoma Intl
Tue 10/13
7:35 pm-3:05 pm
2 stops16h 30m
Hamilton
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$240
SeattleHamilton
SEA Seattle/Tacoma Intl - YHM Hamilton
SEAYHM
Seattle/Tacoma Intl
Fri 10/9
10:30 am-11:13 pm
1 stop9h 43m
Hamilton
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$250
SeattleHamilton
SEA Seattle/Tacoma Intl - YHM Hamilton
SEAYHM
Seattle/Tacoma Intl
Thu 10/1
10:30 am-11:13 pm
1 stop9h 43m
Hamilton
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$251
Showing 1-10 of 20 resultsSorted by cheapest first
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
SEA-YHM
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.
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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