United Flight 3542 Deals & Information (2026/2027)

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United Flight 3542 Route Deals From $266

The cheapest prices found with in the last 7 days for return flights were $624 and $266 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Aug 2 - Mon, Aug 3
HHH
Hilton Head Island
ORD
O'Hare Intl.
$624 Roundtrip, found 1 day ago
$624
Roundtrip
found 1 day ago
Select United flight, departing Sun, Aug 2 from Hilton Head Island to O'Hare Intl., returning Mon, Aug 3, priced at $624 found 1 day ago
Sun, Aug 2 - Mon, Aug 3
HHH
Hilton Head Island
ORD
O'Hare Intl.
$685 Roundtrip, found 1 day ago
$685
Roundtrip
found 1 day ago
Select United flight, departing Sun, Aug 2 from Hilton Head Island to O'Hare Intl., returning Mon, Aug 3, priced at $685 found 1 day ago
Sun, Aug 2 - Mon, Aug 3
HHH
Hilton Head Island
ORD
O'Hare Intl.
$693 Roundtrip, found 1 day ago
$693
Roundtrip
found 1 day ago
Select United flight, departing Sun, Aug 2 from Hilton Head Island to O'Hare Intl., returning Mon, Aug 3, priced at $693 found 1 day ago
Sun, Aug 2 - Mon, Aug 3
HHH
Hilton Head Island
ORD
O'Hare Intl.
$727 Roundtrip, found 1 day ago
$727
Roundtrip
found 1 day ago
Select United flight, departing Sun, Aug 2 from Hilton Head Island to O'Hare Intl., returning Mon, Aug 3, priced at $727 found 1 day ago
Sun, Aug 2 - Mon, Aug 3
HHH
Hilton Head Island
ORD
O'Hare Intl.
$789 Roundtrip, found 1 day ago
$789
Roundtrip
found 1 day ago
Select United flight, departing Sun, Aug 2 from Hilton Head Island to O'Hare Intl., returning Mon, Aug 3, priced at $789 found 1 day ago
Sun, Aug 2 - Mon, Aug 3
HHH
Hilton Head Island
ORD
O'Hare Intl.
$816 Roundtrip, found 1 day ago
$816
Roundtrip
found 1 day ago
Select United flight, departing Sun, Aug 2 from Hilton Head Island to O'Hare Intl., returning Mon, Aug 3, priced at $816 found 1 day ago
Sun, Aug 2 - Mon, Aug 3
HHH
Hilton Head Island
ORD
O'Hare Intl.
$848 Roundtrip, found 1 day ago
$848
Roundtrip
found 1 day ago
Select United flight, departing Sun, Aug 2 from Hilton Head Island to O'Hare Intl., returning Mon, Aug 3, priced at $848 found 1 day 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.