United Flight 5231 Deals & Information (2026/2027)

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United Flight 5231 Route Deals From $237

The cheapest prices found with in the last 7 days for return flights were $260 and $237 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jul 30 - Thu, Aug 6
SBN
South Bend Intl.
ORD
O'Hare Intl.
$260 Roundtrip, found 6 days ago
$260
Roundtrip
found 6 days ago
Select United flight, departing Thu, Jul 30 from South Bend Intl. to O'Hare Intl., returning Thu, Aug 6, priced at $260 found 6 days ago
Thu, Jul 30 - Thu, Aug 6
SBN
South Bend Intl.
ORD
O'Hare Intl.
$267 Roundtrip, found 6 days ago
$267
Roundtrip
found 6 days ago
Select United flight, departing Thu, Jul 30 from South Bend Intl. to O'Hare Intl., returning Thu, Aug 6, priced at $267 found 6 days ago
Fri, Jul 24 - Sun, Jul 26
SBN
South Bend Intl.
ORD
O'Hare Intl.
$306 Roundtrip, found 6 days ago
$306
Roundtrip
found 6 days ago
Select United flight, departing Fri, Jul 24 from South Bend Intl. to O'Hare Intl., returning Sun, Jul 26, priced at $306 found 6 days ago
Thu, Jul 30 - Thu, Aug 6
SBN
South Bend Intl.
ORD
O'Hare Intl.
$310 Roundtrip, found 6 days ago
$310
Roundtrip
found 6 days ago
Select United flight, departing Thu, Jul 30 from South Bend Intl. to O'Hare Intl., returning Thu, Aug 6, priced at $310 found 6 days ago
Fri, Jul 24 - Sun, Jul 26
SBN
South Bend Intl.
ORD
O'Hare Intl.
$323 Roundtrip, found 6 days ago
$323
Roundtrip
found 6 days ago
Select United flight, departing Fri, Jul 24 from South Bend Intl. to O'Hare Intl., returning Sun, Jul 26, priced at $323 found 6 days ago
Thu, Jul 30 - Thu, Aug 6
SBN
South Bend Intl.
ORD
O'Hare Intl.
$332 Roundtrip, found 6 days ago
$332
Roundtrip
found 6 days ago
Select United flight, departing Thu, Jul 30 from South Bend Intl. to O'Hare Intl., returning Thu, Aug 6, priced at $332 found 6 days ago
Thu, Jul 30 - Thu, Aug 6
SBN
South Bend Intl.
ORD
O'Hare Intl.
$339 Roundtrip, found 6 days ago
$339
Roundtrip
found 6 days ago
Select United flight, departing Thu, Jul 30 from South Bend Intl. to O'Hare Intl., returning Thu, Aug 6, priced at $339 found 6 days ago
Fri, Jul 24 - Sun, Jul 26
SBN
South Bend Intl.
ORD
O'Hare Intl.
$378 Roundtrip, found 6 days ago
$378
Roundtrip
found 6 days ago
Select United flight, departing Fri, Jul 24 from South Bend Intl. to O'Hare Intl., returning Sun, Jul 26, priced at $378 found 6 days ago
Thu, Jul 30 - Thu, Aug 6
SBN
South Bend Intl.
ORD
O'Hare Intl.
$382 Roundtrip, found 6 days ago
$382
Roundtrip
found 6 days ago
Select United flight, departing Thu, Jul 30 from South Bend Intl. to O'Hare Intl., returning Thu, Aug 6, priced at $382 found 6 days ago
Fri, Jul 24 - Sun, Jul 26
SBN
South Bend Intl.
ORD
O'Hare Intl.
$395 Roundtrip, found 6 days ago
$395
Roundtrip
found 6 days ago
Select United flight, departing Fri, Jul 24 from South Bend Intl. to O'Hare Intl., returning Sun, Jul 26, priced at $395 found 6 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.