United Flight 5231 Deals & Information (2026/2027)

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United Flight 5231 Route Deals From $245

The cheapest prices found with in the last 7 days for return flights were $254 and $245 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Oct 21 - Mon, Oct 26
SBN
South Bend Intl.
ORD
O'Hare Intl.
$254 Roundtrip, found 1 day ago
$254
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 21 from South Bend Intl. to O'Hare Intl., returning Mon, Oct 26, priced at $254 found 1 day ago
Wed, Oct 21 - Mon, Oct 26
SBN
South Bend Intl.
ORD
O'Hare Intl.
$274 Roundtrip, found 1 day ago
$274
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 21 from South Bend Intl. to O'Hare Intl., returning Mon, Oct 26, priced at $274 found 1 day ago
Sat, Jul 4 - Sun, Jul 5
SBN
South Bend Intl.
ORD
O'Hare Intl.
$275 Roundtrip, found 6 days ago
$275
Roundtrip
found 6 days ago
Select United flight, departing Sat, Jul 4 from South Bend Intl. to O'Hare Intl., returning Sun, Jul 5, priced at $275 found 6 days ago
Wed, Oct 21 - Mon, Oct 26
SBN
South Bend Intl.
ORD
O'Hare Intl.
$289 Roundtrip, found 1 day ago
$289
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 21 from South Bend Intl. to O'Hare Intl., returning Mon, Oct 26, priced at $289 found 1 day ago
Wed, Oct 21 - Mon, Oct 26
SBN
South Bend Intl.
ORD
O'Hare Intl.
$292 Roundtrip, found 1 day ago
$292
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 21 from South Bend Intl. to O'Hare Intl., returning Mon, Oct 26, priced at $292 found 1 day ago
Wed, Oct 21 - Mon, Oct 26
SBN
South Bend Intl.
ORD
O'Hare Intl.
$302 Roundtrip, found 1 day ago
$302
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 21 from South Bend Intl. to O'Hare Intl., returning Mon, Oct 26, priced at $302 found 1 day ago
Sat, Jul 4 - Sun, Jul 5
SBN
South Bend Intl.
ORD
O'Hare Intl.
$304 Roundtrip, found 6 days ago
$304
Roundtrip
found 6 days ago
Select United flight, departing Sat, Jul 4 from South Bend Intl. to O'Hare Intl., returning Sun, Jul 5, priced at $304 found 6 days ago
Wed, Oct 21 - Mon, Oct 26
SBN
South Bend Intl.
ORD
O'Hare Intl.
$308 Roundtrip, found 1 day ago
$308
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 21 from South Bend Intl. to O'Hare Intl., returning Mon, Oct 26, priced at $308 found 1 day ago
Wed, Oct 21 - Mon, Oct 26
SBN
South Bend Intl.
ORD
O'Hare Intl.
$319 Roundtrip, found 1 day ago
$319
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 21 from South Bend Intl. to O'Hare Intl., returning Mon, Oct 26, priced at $319 found 1 day ago
Wed, Oct 21 - Mon, Oct 26
SBN
South Bend Intl.
ORD
O'Hare Intl.
$321 Roundtrip, found 1 day ago
$321
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 21 from South Bend Intl. to O'Hare Intl., returning Mon, Oct 26, priced at $321 found 1 day 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.