United Flight 3542 Deals & Information (2026/2027)

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United Flight 3542 Route Deals From $102

The cheapest prices found with in the last 7 days for return flights were $252 and $102 for one-way flights to Pierre Elliott Trudeau Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Feb 3 - Wed, Feb 4
ORD
O'Hare Intl.
YUL
Pierre Elliott Trudeau Intl.
$252 Roundtrip, found 2 days ago
$252
Roundtrip
found 2 days ago
Select United flight, departing Tue, Feb 3 from O'Hare Intl. to Pierre Elliott Trudeau Intl., returning Wed, Feb 4, priced at $252 found 2 days ago
Mon, Feb 16 - Fri, Mar 6
ORD
O'Hare Intl.
YUL
Pierre Elliott Trudeau Intl.
$260 Roundtrip, found 12 hours ago
$260
Roundtrip
found 12 hours ago
Select United flight, departing Mon, Feb 16 from O'Hare Intl. to Pierre Elliott Trudeau Intl., returning Fri, Mar 6, priced at $260 found 12 hours ago
Tue, Feb 17 - Sat, Mar 7
ORD
O'Hare Intl.
YUL
Pierre Elliott Trudeau Intl.
$265 Roundtrip, found 12 hours ago
$265
Roundtrip
found 12 hours ago
Select United flight, departing Tue, Feb 17 from O'Hare Intl. to Pierre Elliott Trudeau Intl., returning Sat, Mar 7, priced at $265 found 12 hours ago
Mon, Feb 2 - Wed, Feb 4
ORD
O'Hare Intl.
YUL
Pierre Elliott Trudeau Intl.
$268 Roundtrip, found 2 days ago
$268
Roundtrip
found 2 days ago
Select United flight, departing Mon, Feb 2 from O'Hare Intl. to Pierre Elliott Trudeau Intl., returning Wed, Feb 4, priced at $268 found 2 days ago
Mon, Feb 16 - Fri, Mar 6
ORD
O'Hare Intl.
YUL
Pierre Elliott Trudeau Intl.
$269 Roundtrip, found 12 hours ago
$269
Roundtrip
found 12 hours ago
Select United flight, departing Mon, Feb 16 from O'Hare Intl. to Pierre Elliott Trudeau Intl., returning Fri, Mar 6, priced at $269 found 12 hours ago
Sun, Feb 15 - Thu, Mar 5
ORD
O'Hare Intl.
YUL
Pierre Elliott Trudeau Intl.
$273 Roundtrip, found 12 hours ago
$273
Roundtrip
found 12 hours ago
Select United flight, departing Sun, Feb 15 from O'Hare Intl. to Pierre Elliott Trudeau Intl., returning Thu, Mar 5, priced at $273 found 12 hours ago
Tue, Feb 17 - Sat, Mar 7
ORD
O'Hare Intl.
YUL
Pierre Elliott Trudeau Intl.
$281 Roundtrip, found 12 hours ago
$281
Roundtrip
found 12 hours ago
Select United flight, departing Tue, Feb 17 from O'Hare Intl. to Pierre Elliott Trudeau Intl., returning Sat, Mar 7, priced at $281 found 12 hours ago

Frequently asked questions

What route does flight number UA3542 take?
UA3542 is used on a number of routes. Mostly, UA3542 flies directly from O'Hare Airport to Hilton Head Island Airport (HHH). If you've booked a seat on this route, you'll be traveling for roughly 2 hours and 29 minutes.
What terminal does UA3542 fly out of?
You'll likely board from Terminal 2 if you're booked on a flight out of O'Hare Airport. UA3542 serves a number of different routes, but the direct flight between ORD and Hilton Head Island Airport (HHH) is the most frequently traveled.
What kind of plane is on flight number UA3542?
If you have a seat on flight UA3542 from ORD to HHH, there's an excellent chance you'll be traveling aboard the Embraer 175. Flight UA3542 serves several routes, but this is the busiest.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your UA3542 flight with Travelocity, please visit our Customer Service Portal.