United Flight 5231 Deals & Information (2025/2026)

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United Flight 5231 Route Deals From $233

The cheapest prices found with in the last 7 days for return flights were $179 and $233 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Jan 16 - Mon, Feb 2
SBN
South Bend Intl.
ORD
O'Hare Intl.
$179 Roundtrip, found 3 days ago
$179
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jan 16 from South Bend Intl. to O'Hare Intl., returning Mon, Feb 2, priced at $179 found 3 days ago
Fri, Jan 16 - Mon, Feb 2
SBN
South Bend Intl.
ORD
O'Hare Intl.
$194 Roundtrip, found 3 days ago
$194
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jan 16 from South Bend Intl. to O'Hare Intl., returning Mon, Feb 2, priced at $194 found 3 days ago
Fri, Jan 16 - Mon, Feb 2
SBN
South Bend Intl.
ORD
O'Hare Intl.
$217 Roundtrip, found 3 days ago
$217
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jan 16 from South Bend Intl. to O'Hare Intl., returning Mon, Feb 2, priced at $217 found 3 days ago
Fri, Jan 16 - Mon, Feb 2
SBN
South Bend Intl.
ORD
O'Hare Intl.
$232 Roundtrip, found 3 days ago
$232
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jan 16 from South Bend Intl. to O'Hare Intl., returning Mon, Feb 2, priced at $232 found 3 days ago
Fri, Jan 16 - Mon, Feb 2
SBN
South Bend Intl.
ORD
O'Hare Intl.
$239 Roundtrip, found 3 days ago
$239
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jan 16 from South Bend Intl. to O'Hare Intl., returning Mon, Feb 2, priced at $239 found 3 days ago
Fri, Jan 16 - Mon, Feb 2
SBN
South Bend Intl.
ORD
O'Hare Intl.
$245 Roundtrip, found 3 days ago
$245
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jan 16 from South Bend Intl. to O'Hare Intl., returning Mon, Feb 2, priced at $245 found 3 days ago
Fri, Jan 16 - Mon, Feb 2
SBN
South Bend Intl.
ORD
O'Hare Intl.
$254 Roundtrip, found 3 days ago
$254
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jan 16 from South Bend Intl. to O'Hare Intl., returning Mon, Feb 2, priced at $254 found 3 days ago
Fri, Jan 16 - Mon, Feb 2
SBN
South Bend Intl.
ORD
O'Hare Intl.
$277 Roundtrip, found 3 days ago
$277
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jan 16 from South Bend Intl. to O'Hare Intl., returning Mon, Feb 2, priced at $277 found 3 days ago
Fri, Jan 16 - Mon, Feb 2
SBN
South Bend Intl.
ORD
O'Hare Intl.
$283 Roundtrip, found 3 days ago
$283
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jan 16 from South Bend Intl. to O'Hare Intl., returning Mon, Feb 2, priced at $283 found 3 days ago
Fri, Jan 16 - Mon, Feb 2
SBN
South Bend Intl.
ORD
O'Hare Intl.
$292 Roundtrip, found 3 days ago
$292
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jan 16 from South Bend Intl. to O'Hare Intl., returning Mon, Feb 2, priced at $292 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.