United Flight 5231 Deals & Information (2026/2027)

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United Flight 5231 Route Deals From $249

The cheapest prices found with in the last 7 days for return flights were $249 and $249 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Oct 31 - Sat, Nov 7
SBN
South Bend Intl.
ORD
O'Hare Intl.
$249 Roundtrip, found 14 hours ago
$249
Roundtrip
found 14 hours ago
Select United flight, departing Sat, Oct 31 from South Bend Intl. to O'Hare Intl., returning Sat, Nov 7, priced at $249 found 14 hours ago
Thu, Oct 15 - Tue, Oct 20
SBN
South Bend Intl.
ORD
O'Hare Intl.
$263 Roundtrip, found 2 days ago
$263
Roundtrip
found 2 days ago
Select United flight, departing Thu, Oct 15 from South Bend Intl. to O'Hare Intl., returning Tue, Oct 20, priced at $263 found 2 days ago
Thu, Oct 15 - Tue, Oct 20
SBN
South Bend Intl.
ORD
O'Hare Intl.
$268 Roundtrip, found 2 days ago
$268
Roundtrip
found 2 days ago
Select United flight, departing Thu, Oct 15 from South Bend Intl. to O'Hare Intl., returning Tue, Oct 20, priced at $268 found 2 days ago
Sat, Oct 31 - Sat, Nov 7
SBN
South Bend Intl.
ORD
O'Hare Intl.
$283 Roundtrip, found 14 hours ago
$283
Roundtrip
found 14 hours ago
Select United flight, departing Sat, Oct 31 from South Bend Intl. to O'Hare Intl., returning Sat, Nov 7, priced at $283 found 14 hours ago
Thu, Oct 15 - Tue, Oct 20
SBN
South Bend Intl.
ORD
O'Hare Intl.
$290 Roundtrip, found 2 days ago
$290
Roundtrip
found 2 days ago
Select United flight, departing Thu, Oct 15 from South Bend Intl. to O'Hare Intl., returning Tue, Oct 20, priced at $290 found 2 days ago
Sat, Oct 31 - Sat, Nov 7
SBN
South Bend Intl.
ORD
O'Hare Intl.
$312 Roundtrip, found 14 hours ago
$312
Roundtrip
found 14 hours ago
Select United flight, departing Sat, Oct 31 from South Bend Intl. to O'Hare Intl., returning Sat, Nov 7, priced at $312 found 14 hours ago
Sat, Aug 29 - Sun, Aug 30
SBN
South Bend Intl.
ORD
O'Hare Intl.
$313 Roundtrip, found 4 days ago
$313
Roundtrip
found 4 days ago
Select United flight, departing Sat, Aug 29 from South Bend Intl. to O'Hare Intl., returning Sun, Aug 30, priced at $313 found 4 days ago
Thu, Oct 15 - Tue, Oct 20
SBN
South Bend Intl.
ORD
O'Hare Intl.
$321 Roundtrip, found 2 days ago
$321
Roundtrip
found 2 days ago
Select United flight, departing Thu, Oct 15 from South Bend Intl. to O'Hare Intl., returning Tue, Oct 20, priced at $321 found 2 days ago
Sat, Oct 31 - Sat, Nov 7
SBN
South Bend Intl.
ORD
O'Hare Intl.
$330 Roundtrip, found 14 hours ago
$330
Roundtrip
found 14 hours ago
Select United flight, departing Sat, Oct 31 from South Bend Intl. to O'Hare Intl., returning Sat, Nov 7, priced at $330 found 14 hours ago
Sat, Oct 31 - Sat, Nov 7
SBN
South Bend Intl.
ORD
O'Hare Intl.
$333 Roundtrip, found 14 hours ago
$333
Roundtrip
found 14 hours ago
Select United flight, departing Sat, Oct 31 from South Bend Intl. to O'Hare Intl., returning Sat, Nov 7, priced at $333 found 14 hours 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.