United Flight 5231 Deals & Information (2025/2026)

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United Flight 5231 Route Deals From $204

The cheapest prices found with in the last 7 days for return flights were $183 and $204 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Dec 30 - Tue, Jan 6
SBN
South Bend Intl.
ORD
O'Hare Intl.
$183 Roundtrip, found 3 days ago
$183
Roundtrip
found 3 days ago
Select United flight, departing Tue, Dec 30 from South Bend Intl. to O'Hare Intl., returning Tue, Jan 6, priced at $183 found 3 days ago
Tue, Dec 30 - Tue, Jan 6
SBN
South Bend Intl.
ORD
O'Hare Intl.
$196 Roundtrip, found 3 days ago
$196
Roundtrip
found 3 days ago
Select United flight, departing Tue, Dec 30 from South Bend Intl. to O'Hare Intl., returning Tue, Jan 6, priced at $196 found 3 days ago
Tue, Dec 30 - Tue, Jan 6
SBN
South Bend Intl.
ORD
O'Hare Intl.
$198 Roundtrip, found 3 days ago
$198
Roundtrip
found 3 days ago
Select United flight, departing Tue, Dec 30 from South Bend Intl. to O'Hare Intl., returning Tue, Jan 6, priced at $198 found 3 days ago
Tue, Dec 30 - Tue, Jan 6
SBN
South Bend Intl.
ORD
O'Hare Intl.
$211 Roundtrip, found 3 days ago
$211
Roundtrip
found 3 days ago
Select United flight, departing Tue, Dec 30 from South Bend Intl. to O'Hare Intl., returning Tue, Jan 6, priced at $211 found 3 days ago
Sat, May 23 - Fri, May 29
SBN
South Bend Intl.
ORD
O'Hare Intl.
$229 Roundtrip, found 3 days ago
$229
Roundtrip
found 3 days ago
Select United flight, departing Sat, May 23 from South Bend Intl. to O'Hare Intl., returning Fri, May 29, priced at $229 found 3 days ago
Sat, May 23 - Fri, May 29
SBN
South Bend Intl.
ORD
O'Hare Intl.
$240 Roundtrip, found 3 days ago
$240
Roundtrip
found 3 days ago
Select United flight, departing Sat, May 23 from South Bend Intl. to O'Hare Intl., returning Fri, May 29, priced at $240 found 3 days ago
Sat, Oct 25 - Mon, Oct 27
SBN
South Bend Intl.
ORD
O'Hare Intl.
$242 Roundtrip, found 3 days ago
$242
Roundtrip
found 3 days ago
Select United flight, departing Sat, Oct 25 from South Bend Intl. to O'Hare Intl., returning Mon, Oct 27, priced at $242 found 3 days ago
Sat, Oct 25 - Mon, Oct 27
SBN
South Bend Intl.
ORD
O'Hare Intl.
$244 Roundtrip, found 3 days ago
$244
Roundtrip
found 3 days ago
Select United flight, departing Sat, Oct 25 from South Bend Intl. to O'Hare Intl., returning Mon, Oct 27, priced at $244 found 3 days ago
Tue, Dec 30 - Tue, Jan 6
SBN
South Bend Intl.
ORD
O'Hare Intl.
$245 Roundtrip, found 3 days ago
$245
Roundtrip
found 3 days ago
Select United flight, departing Tue, Dec 30 from South Bend Intl. to O'Hare Intl., returning Tue, Jan 6, priced at $245 found 3 days ago
Sat, May 23 - Fri, May 29
SBN
South Bend Intl.
ORD
O'Hare Intl.
$250 Roundtrip, found 3 days ago
$250
Roundtrip
found 3 days ago
Select United flight, departing Sat, May 23 from South Bend Intl. to O'Hare Intl., returning Fri, May 29, priced at $250 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.