United Flight 5231 Deals & Information (2025/2026)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

United Flight 5231 Route Deals From $204

The cheapest prices found with in the last 7 days for return flights were $378 and $204 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Apr 4 - Thu, Apr 9
SBN
South Bend Intl.
ORD
O'Hare Intl.
$378 Roundtrip, found 3 days ago
$378
Roundtrip
found 3 days ago
Select United flight, departing Sat, Apr 4 from South Bend Intl. to O'Hare Intl., returning Thu, Apr 9, priced at $378 found 3 days ago
Sat, Apr 4 - Thu, Apr 9
SBN
South Bend Intl.
ORD
O'Hare Intl.
$389 Roundtrip, found 3 days ago
$389
Roundtrip
found 3 days ago
Select United flight, departing Sat, Apr 4 from South Bend Intl. to O'Hare Intl., returning Thu, Apr 9, priced at $389 found 3 days ago
Sat, Apr 4 - Thu, Apr 9
SBN
South Bend Intl.
ORD
O'Hare Intl.
$390 Roundtrip, found 3 days ago
$390
Roundtrip
found 3 days ago
Select United flight, departing Sat, Apr 4 from South Bend Intl. to O'Hare Intl., returning Thu, Apr 9, priced at $390 found 3 days ago
Sat, Apr 4 - Thu, Apr 9
SBN
South Bend Intl.
ORD
O'Hare Intl.
$398 Roundtrip, found 3 days ago
$398
Roundtrip
found 3 days ago
Select United flight, departing Sat, Apr 4 from South Bend Intl. to O'Hare Intl., returning Thu, Apr 9, priced at $398 found 3 days ago
Sat, Apr 4 - Thu, Apr 9
SBN
South Bend Intl.
ORD
O'Hare Intl.
$401 Roundtrip, found 3 days ago
$401
Roundtrip
found 3 days ago
Select United flight, departing Sat, Apr 4 from South Bend Intl. to O'Hare Intl., returning Thu, Apr 9, priced at $401 found 3 days ago
Sat, Apr 4 - Thu, Apr 9
SBN
South Bend Intl.
ORD
O'Hare Intl.
$409 Roundtrip, found 3 days ago
$409
Roundtrip
found 3 days ago
Select United flight, departing Sat, Apr 4 from South Bend Intl. to O'Hare Intl., returning Thu, Apr 9, priced at $409 found 3 days ago
Sat, Apr 4 - Thu, Apr 9
SBN
South Bend Intl.
ORD
O'Hare Intl.
$441 Roundtrip, found 3 days ago
$441
Roundtrip
found 3 days ago
Select United flight, departing Sat, Apr 4 from South Bend Intl. to O'Hare Intl., returning Thu, Apr 9, priced at $441 found 3 days ago
Sat, Apr 4 - Thu, Apr 9
SBN
South Bend Intl.
ORD
O'Hare Intl.
$447 Roundtrip, found 3 days ago
$447
Roundtrip
found 3 days ago
Select United flight, departing Sat, Apr 4 from South Bend Intl. to O'Hare Intl., returning Thu, Apr 9, priced at $447 found 3 days ago
Sat, Apr 4 - Thu, Apr 9
SBN
South Bend Intl.
ORD
O'Hare Intl.
$448 Roundtrip, found 3 days ago
$448
Roundtrip
found 3 days ago
Select United flight, departing Sat, Apr 4 from South Bend Intl. to O'Hare Intl., returning Thu, Apr 9, priced at $448 found 3 days ago
Sat, Apr 4 - Thu, Apr 9
SBN
South Bend Intl.
ORD
O'Hare Intl.
$453 Roundtrip, found 3 days ago
$453
Roundtrip
found 3 days ago
Select United flight, departing Sat, Apr 4 from South Bend Intl. to O'Hare Intl., returning Thu, Apr 9, priced at $453 found 3 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.