United Flight 324 Deals & Information (2026/2027)

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United Flight 324 Route Deals From $145

The cheapest prices found with in the last 7 days for return flights were $303 and $145 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Dec 12 - Mon, Dec 14
BUF
Buffalo Niagara Intl.
ORD
O'Hare Intl.
$303 Roundtrip, found 17 hours ago
$303
Roundtrip
found 17 hours ago
Select United flight, departing Sat, Dec 12 from Buffalo Niagara Intl. to O'Hare Intl., returning Mon, Dec 14, priced at $303 found 17 hours ago
Sat, Dec 12 - Tue, Dec 15
BUF
Buffalo Niagara Intl.
ORD
O'Hare Intl.
$326 Roundtrip, found 6 days ago
$326
Roundtrip
found 6 days ago
Select United flight, departing Sat, Dec 12 from Buffalo Niagara Intl. to O'Hare Intl., returning Tue, Dec 15, priced at $326 found 6 days ago
Thu, Nov 5 - Mon, Nov 9
BUF
Buffalo Niagara Intl.
ORD
O'Hare Intl.
$330 Roundtrip, found 6 days ago
$330
Roundtrip
found 6 days ago
Select United flight, departing Thu, Nov 5 from Buffalo Niagara Intl. to O'Hare Intl., returning Mon, Nov 9, priced at $330 found 6 days ago
Sat, Dec 12 - Mon, Dec 14
BUF
Buffalo Niagara Intl.
ORD
O'Hare Intl.
$332 Roundtrip, found 17 hours ago
$332
Roundtrip
found 17 hours ago
Select United flight, departing Sat, Dec 12 from Buffalo Niagara Intl. to O'Hare Intl., returning Mon, Dec 14, priced at $332 found 17 hours ago
Sat, Dec 12 - Mon, Dec 14
BUF
Buffalo Niagara Intl.
ORD
O'Hare Intl.
$338 Roundtrip, found 17 hours ago
$338
Roundtrip
found 17 hours ago
Select United flight, departing Sat, Dec 12 from Buffalo Niagara Intl. to O'Hare Intl., returning Mon, Dec 14, priced at $338 found 17 hours ago
Thu, Nov 19 - Mon, Nov 23
BUF
Buffalo Niagara Intl.
ORD
O'Hare Intl.
$338 Roundtrip, found 6 hours ago
$338
Roundtrip
found 6 hours ago
Select United flight, departing Thu, Nov 19 from Buffalo Niagara Intl. to O'Hare Intl., returning Mon, Nov 23, priced at $338 found 6 hours ago
Thu, Nov 19 - Mon, Nov 23
BUF
Buffalo Niagara Intl.
ORD
O'Hare Intl.
$343 Roundtrip, found 6 hours ago
$343
Roundtrip
found 6 hours ago
Select United flight, departing Thu, Nov 19 from Buffalo Niagara Intl. to O'Hare Intl., returning Mon, Nov 23, priced at $343 found 6 hours ago
Thu, Nov 19 - Mon, Nov 23
BUF
Buffalo Niagara Intl.
ORD
O'Hare Intl.
$348 Roundtrip, found 6 hours ago
$348
Roundtrip
found 6 hours ago
Select United flight, departing Thu, Nov 19 from Buffalo Niagara Intl. to O'Hare Intl., returning Mon, Nov 23, priced at $348 found 6 hours ago
Thu, Nov 19 - Mon, Nov 23
BUF
Buffalo Niagara Intl.
ORD
O'Hare Intl.
$353 Roundtrip, found 6 hours ago
$353
Roundtrip
found 6 hours ago
Select United flight, departing Thu, Nov 19 from Buffalo Niagara Intl. to O'Hare Intl., returning Mon, Nov 23, priced at $353 found 6 hours ago

Frequently asked questions

What route does flight number UA324 take?
UA324 serves multiple routes, but the most common is between Denver Intl. Airport (DEN) and Sioux Falls, SD Airport (FSD-Sioux Falls Regional). If you're lucky enough to score a direct flight, you'll step off the plane in about 1 hour and 26 minutes. Multi-stop flights can also operate under the same number, as can flights on other routes.
What kind of plane is on flight number UA324?
You'll probably be traveling aboard the Airbus A320 if you've booked a fare on flight UA324 from DIA airport to Sioux Falls Regional Airport (FSD). It's the most commonly used type of aircraft on this popular route.
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 UA324 flight with Travelocity, please visit our Customer Service Portal.