United Flight 3542 Deals & Information (2025/2026)

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United Flight 3542 Route Deals From $85

The cheapest prices found with in the last 7 days for return flights were $188 and $85 for one-way flights to Pierre Elliott Trudeau Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Sep 10 - Thu, Sep 18
ORD
O'Hare Intl.
YUL
Pierre Elliott Trudeau Intl.
$188 Roundtrip, found 3 days ago
$188
Roundtrip
found 3 days ago
Select United flight, departing Wed, Sep 10 from O'Hare Intl. to Pierre Elliott Trudeau Intl., returning Thu, Sep 18, priced at $188 found 3 days ago
Wed, Sep 10 - Sun, Sep 14
ORD
O'Hare Intl.
YUL
Pierre Elliott Trudeau Intl.
$191 Roundtrip, found 5 days ago
$191
Roundtrip
found 5 days ago
Select United flight, departing Wed, Sep 10 from O'Hare Intl. to Pierre Elliott Trudeau Intl., returning Sun, Sep 14, priced at $191 found 5 days ago
Wed, Sep 10 - Thu, Sep 18
ORD
O'Hare Intl.
YUL
Pierre Elliott Trudeau Intl.
$197 Roundtrip, found 3 days ago
$197
Roundtrip
found 3 days ago
Select United flight, departing Wed, Sep 10 from O'Hare Intl. to Pierre Elliott Trudeau Intl., returning Thu, Sep 18, priced at $197 found 3 days ago
Wed, Sep 10 - Sun, Sep 14
ORD
O'Hare Intl.
YUL
Pierre Elliott Trudeau Intl.
$201 Roundtrip, found 5 days ago
$201
Roundtrip
found 5 days ago
Select United flight, departing Wed, Sep 10 from O'Hare Intl. to Pierre Elliott Trudeau Intl., returning Sun, Sep 14, priced at $201 found 5 days ago
Wed, Sep 10 - Thu, Sep 18
ORD
O'Hare Intl.
YUL
Pierre Elliott Trudeau Intl.
$203 Roundtrip, found 3 days ago
$203
Roundtrip
found 3 days ago
Select United flight, departing Wed, Sep 10 from O'Hare Intl. to Pierre Elliott Trudeau Intl., returning Thu, Sep 18, priced at $203 found 3 days ago
Wed, Sep 10 - Thu, Sep 18
ORD
O'Hare Intl.
YUL
Pierre Elliott Trudeau Intl.
$215 Roundtrip, found 3 days ago
$215
Roundtrip
found 3 days ago
Select United flight, departing Wed, Sep 10 from O'Hare Intl. to Pierre Elliott Trudeau Intl., returning Thu, Sep 18, priced at $215 found 3 days ago
Wed, Sep 10 - Sun, Sep 14
ORD
O'Hare Intl.
YUL
Pierre Elliott Trudeau Intl.
$219 Roundtrip, found 5 days ago
$219
Roundtrip
found 5 days ago
Select United flight, departing Wed, Sep 10 from O'Hare Intl. to Pierre Elliott Trudeau Intl., returning Sun, Sep 14, priced at $219 found 5 days ago
Wed, Sep 10 - Thu, Sep 18
ORD
O'Hare Intl.
YUL
Pierre Elliott Trudeau Intl.
$225 Roundtrip, found 3 days ago
$225
Roundtrip
found 3 days ago
Select United flight, departing Wed, Sep 10 from O'Hare Intl. to Pierre Elliott Trudeau Intl., returning Thu, Sep 18, priced at $225 found 3 days ago
Wed, Sep 10 - Sun, Sep 14
ORD
O'Hare Intl.
YUL
Pierre Elliott Trudeau Intl.
$228 Roundtrip, found 5 days ago
$228
Roundtrip
found 5 days ago
Select United flight, departing Wed, Sep 10 from O'Hare Intl. to Pierre Elliott Trudeau Intl., returning Sun, Sep 14, priced at $228 found 5 days 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.