United Flight 5231 Deals & Information (2026/2027)

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United Flight 5231 Route Deals From $318

The cheapest prices found with in the last 7 days for return flights were $309 and $318 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Dec 24 - Mon, Dec 28
SBN
South Bend Intl.
ORD
O'Hare Intl.
$309 Roundtrip, found 2 days ago
$309
Roundtrip
found 2 days ago
Select United flight, departing Thu, Dec 24 from South Bend Intl. to O'Hare Intl., returning Mon, Dec 28, priced at $309 found 2 days ago
Thu, Dec 24 - Mon, Dec 28
SBN
South Bend Intl.
ORD
O'Hare Intl.
$324 Roundtrip, found 2 days ago
$324
Roundtrip
found 2 days ago
Select United flight, departing Thu, Dec 24 from South Bend Intl. to O'Hare Intl., returning Mon, Dec 28, priced at $324 found 2 days ago
Fri, Oct 30 - Sun, Nov 1
SBN
South Bend Intl.
ORD
O'Hare Intl.
$354 Roundtrip, found 4 days ago
$354
Roundtrip
found 4 days ago
Select United flight, departing Fri, Oct 30 from South Bend Intl. to O'Hare Intl., returning Sun, Nov 1, priced at $354 found 4 days ago
Thu, Dec 24 - Mon, Dec 28
SBN
South Bend Intl.
ORD
O'Hare Intl.
$399 Roundtrip, found 2 days ago
$399
Roundtrip
found 2 days ago
Select United flight, departing Thu, Dec 24 from South Bend Intl. to O'Hare Intl., returning Mon, Dec 28, priced at $399 found 2 days ago
Thu, Dec 24 - Mon, Dec 28
SBN
South Bend Intl.
ORD
O'Hare Intl.
$414 Roundtrip, found 2 days ago
$414
Roundtrip
found 2 days ago
Select United flight, departing Thu, Dec 24 from South Bend Intl. to O'Hare Intl., returning Mon, Dec 28, priced at $414 found 2 days ago
Fri, Oct 30 - Sun, Nov 1
SBN
South Bend Intl.
ORD
O'Hare Intl.
$444 Roundtrip, found 4 days ago
$444
Roundtrip
found 4 days ago
Select United flight, departing Fri, Oct 30 from South Bend Intl. to O'Hare Intl., returning Sun, Nov 1, priced at $444 found 4 days ago
Thu, Dec 24 - Mon, Dec 28
SBN
South Bend Intl.
ORD
O'Hare Intl.
$469 Roundtrip, found 2 days ago
$469
Roundtrip
found 2 days ago
Select United flight, departing Thu, Dec 24 from South Bend Intl. to O'Hare Intl., returning Mon, Dec 28, priced at $469 found 2 days ago
Thu, Dec 24 - Mon, Dec 28
SBN
South Bend Intl.
ORD
O'Hare Intl.
$515 Roundtrip, found 2 days ago
$515
Roundtrip
found 2 days ago
Select United flight, departing Thu, Dec 24 from South Bend Intl. to O'Hare Intl., returning Mon, Dec 28, priced at $515 found 2 days ago
Fri, Oct 30 - Sun, Nov 1
SBN
South Bend Intl.
ORD
O'Hare Intl.
$519 Roundtrip, found 4 days ago
$519
Roundtrip
found 4 days ago
Select United flight, departing Fri, Oct 30 from South Bend Intl. to O'Hare Intl., returning Sun, Nov 1, priced at $519 found 4 days ago

Frequently asked questions

What route does flight number UA5231 take?
UA5231 is used on multiple routes. Most often, UA5231 flies direct from San Francisco Airport to John Wayne Airport (SNA). If you have a ticket on this route, you'll be flying for around 1 hour and 29 minutes.
What terminal does UA5231 fly out of?
UA5231 flights from San Francisco Airport usually head off from Terminal 3. This flight number runs on multiple routes, but the most popular one is San Francisco Airport to SNA.
What kind of plane is on flight number UA5231?
If you're on flight UA5231 from San Francisco Intl. Airport (SFO) to John Wayne Airport, there's a good chance you'll be on board a Bombardier CRJ700. Flight UA5231 serves numerous routes, but this is the most popular one.
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 UA5231 flight with Travelocity, please visit our Customer Service Portal.