$220+ Cheap flights from Hamilton, ON (YHM) to O'Hare Intl (ORD)
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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
YHM — ORD
Oct 29 — Nov 51
Round-trip
1 adult, Economy
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Find cheap flights from Hamilton to O'Hare Intl 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 Hamilton to O'Hare Intl
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One-way
Cheapest flights from Hamilton to O'Hare IntlExplore the most affordable flight options available from Hamilton to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 29, 2026.
Explore the most affordable flight options available from Hamilton to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 29, 2026.
This Booking.com deal was found by Cheapflights users on 9/25. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:15 am -
1 stop8h 15m
Fri 10/308:00 am -
2 stops13h 10m
Deal found 9/25![Multiple Airlines logo]()
$550
This Booking.com deal was found by Cheapflights users on 9/24. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/76:25 am -
1 stop10h 12m
Mon 11/91:06 pm -
3 stops32h 04m
Deal found 9/24![Multiple Airlines logo]()
$576
This Mytrip deal was found by Cheapflights users on 9/27. 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.
Wed 11/1812:10 pm -
3 stops21h 46m
Thu 11/2611:53 pm -
3 stops21h 17m
Deal found 9/27![Multiple Airlines logo]()
$623
This Mytrip deal was found by Cheapflights users on 9/24. 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 10/248:15 am -
1 stop8h 15m
Sat 10/312:11 pm -
3 stops31h 59m
Deal found 9/24![Multiple Airlines logo]()
$633
This Booking.com deal was found by Cheapflights users on 9/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2512:10 pm -
3 stops22h 11m
Sun 11/18:00 am -
2 stops13h 10m
Deal found 9/27![Multiple Airlines logo]()
$637
Best flights from Hamilton to O'Hare IntlDiscover carefully curated flight deals from Hamilton to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 29, 2026.
Discover carefully curated flight deals from Hamilton to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 29, 2026.
This Mytrip deal was found by Cheapflights users on 9/25. 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.
Mon 11/97:05 am -
3 stops23h 08m
Mon 11/167:50 pm -
3 stops25h 20m
Deal found 9/25![Multiple Airlines logo]()
$691
This WestJet deal was found by Cheapflights users on 9/27. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:10 pm -
1 stop23h 30m
Mon 10/195:30 pm -
1 stop22h 45m
Deal found 9/27![WestJet logo]()
$923
This Mytrip deal was found by Cheapflights users on 9/25. 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 10/248:15 am -
2 stops26h 06m
Sat 10/318:00 am -
2 stops13h 10m
Deal found 9/25![Multiple Airlines logo]()
$704
This Mytrip deal was found by Cheapflights users on 9/28. 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.
Mon 10/198:15 am -
1 stop8h 15m
Sun 11/112:04 am -
2 stops15h 54m
Deal found 9/28![Multiple Airlines logo]()
$733
This Mytrip deal was found by Cheapflights users on 9/27. 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.
Fri 10/238:15 am -
1 stop8h 15m
Sun 10/258:04 am -
2 stops13h 06m
Deal found 9/27![Multiple Airlines logo]()
$743
This Mytrip deal was found by Cheapflights users on 9/26. 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.
Mon 10/128:15 am -
1 stop8h 15m
Thu 10/155:30 pm -
2 stops20h 35m
Deal found 9/26![Multiple Airlines logo]()
$746
This Mytrip deal was found by Cheapflights users on 9/24. 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.
Sun 11/83:55 pm -
2 stops13h 48m
Sun 11/156:10 am -
1 stop16h 53m
Deal found 9/24![Multiple Airlines logo]()
$783
This Mytrip deal was found by Cheapflights users on 9/26. 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 10/294:05 pm -
2 stops24h 32m
Mon 11/21:06 pm -
3 stops32h 04m
Deal found 9/26![Multiple Airlines logo]()
$913
Last-minute flights from Hamilton to O'Hare IntlDiscover last-minute flight deals from Hamilton to O'Hare Intl. Data last updated September 29, 2026 and is based on user searches.
Discover last-minute flight deals from Hamilton to O'Hare Intl. Data last updated September 29, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 9/25. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:15 am -
1 stop8h 15m
Fri 10/308:00 am -
2 stops13h 10m
Deal found 9/25![Multiple Airlines logo]()
$550
This Mytrip deal was found by Cheapflights users on 9/24. 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 10/248:15 am -
1 stop8h 15m
Sat 10/312:11 pm -
3 stops31h 59m
Deal found 9/24![Multiple Airlines logo]()
$633
This Booking.com deal was found by Cheapflights users on 9/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2512:10 pm -
3 stops22h 11m
Sun 11/18:00 am -
2 stops13h 10m
Deal found 9/27![Multiple Airlines logo]()
$637
One-way flights from Hamilton to O'Hare IntlSearch for one-way flight options from Hamilton to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated September 29, 2026.
Search for one-way flight options from Hamilton to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated September 29, 2026.
This Mytrip deal was found by Cheapflights users on 9/25. 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 10/108:15 am -
2 stops26h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Multiple Airlines logo]()
$220
This Trip.com deal was found by Cheapflights users on 9/25. 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.
Sun 11/156:25 am -
1 stop10h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Multiple Airlines logo]()
$226
This Mytrip deal was found by Cheapflights users on 9/26. 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.
Sun 11/86:25 am -
1 stop10h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![Multiple Airlines logo]()
$271
This FlightHub deal was found by Cheapflights users on 9/27. 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 10/146:10 pm -
1 stop23h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![WestJet logo]()
$277
This Mytrip deal was found by Cheapflights users on 9/25. 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.
Sun 10/256:25 am -
1 stop10h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Multiple Airlines logo]()
$278
This Mytrip deal was found by Cheapflights users on 9/24. 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 10/248:15 am -
1 stop8h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Multiple Airlines logo]()
$282
Find flight deals from Hamilton to O'Hare Intl
Discover tips and strategies to find the most affordable flight options for your journey from Hamilton (YHM) to O'Hare Intl (ORD). 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 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $502 (Mytrip) |
One-way from | $220 (Mytrip) |
Popular in | October |
Cheapest in | February |
Average price | $263 |
Cheapflights Fare Finder
Customize your flight search to find flights from Hamilton to O'Hare Intl 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 29, 2026.
Use the filters below to find and compare flights from Hamilton to Chicago O'Hare Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
HamiltonChicago
YHM Hamilton - ORD Chicago O'Hare Intl
YHMORD
Hamilton
Sat 10/10
8:15 am-3:30 pm
1 stop8h 15m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$233
HamiltonChicago
YHM Hamilton - ORD Chicago O'Hare Intl
YHMORD
Hamilton
Sun 11/8
6:25 am-3:37 pm
1 stop10h 12m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$271
HamiltonChicago
YHM Hamilton - ORD Chicago O'Hare Intl
YHMORD
Hamilton
Sat 11/14
6:25 am-3:37 pm
1 stop10h 12m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$302
HamiltonChicago
YHM Hamilton - ORD Chicago O'Hare Intl
YHMORD
Hamilton
Mon 10/19
8:15 am-3:30 pm
1 stop8h 15m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$319
HamiltonChicago
YHM Hamilton - ORD Chicago O'Hare Intl
YHMORD
Hamilton
Sun 10/25
6:25 am-3:30 pm
1 stop10h 05m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$340
HamiltonChicago
YHM Hamilton - ORD Chicago O'Hare Intl
YHMORD
Hamilton
Mon 10/12
8:15 am-3:30 pm
1 stop8h 15m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$343
HamiltonChicago
YHM Hamilton - ORD Chicago O'Hare Intl
YHMORD
Hamilton
Mon 11/9
8:00 am-11:44 pm
2 stops40h 44m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$384
HamiltonChicago
YHM Hamilton - ORD Chicago O'Hare Intl
YHMORD
Hamilton
Tue 10/27
6:05 am-7:19 pm
1 stop14h 14m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$394
HamiltonChicago
YHM Hamilton - ORD Chicago O'Hare Intl
YHMORD
Hamilton
Mon 11/9
7:05 am-5:13 am
3 stops23h 08m
Chicago O'Hare Intl
Mon 11/16
7:50 pm-10:10 pm
3 stops25h 20m
$691
HamiltonChicago
YHM Hamilton - ORD Chicago O'Hare Intl
YHMORD
Hamilton
Sat 10/24
8:15 am-9:21 am
2 stops26h 06m
Chicago O'Hare Intl
Sat 10/31
8:00 am-10:10 pm
2 stops13h 10m
$704
Showing 1-10 of 16 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Hamilton, Ontario-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Hamilton, Ontario-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Hamilton, Ontario-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Hamilton, Ontario-Chicago O'Hare Intl Airport 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 Hamilton, Ontario-Chicago O'Hare Intl Airport 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 Hamilton to O'Hare Intl
Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Hamilton with our price prediction graph.
YHM-ORD
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 Hamilton to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Chicago O'Hare Intl Airport?
Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locationsBenton Harbor
Rosemont
Lake Geneva
Naperville
Des Plaines
Glenview
Schaumburg
Oakbrook Terrace
Delavan
Oak Brook
Aurora
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Rockford
Hoffman Estates
Beloit
Orland Park
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Elgin
Racine
Janesville
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