United Flight 3571 Deals & Information (2025/2026)

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United Flight 3571 Route Deals From $49

The cheapest prices found with in the last 7 days for return flights were $110 and $49 for one-way flights to Louisville Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Oct 28 - Thu, Oct 30
ORD
O'Hare Intl.
SDF
Louisville Intl.
$110 Roundtrip, found 3 days ago
$110
Roundtrip
found 3 days ago
Select United flight, departing Tue, Oct 28 from O'Hare Intl. to Louisville Intl., returning Thu, Oct 30, priced at $110 found 3 days ago
Tue, Oct 28 - Thu, Oct 30
ORD
O'Hare Intl.
SDF
Louisville Intl.
$112 Roundtrip, found 3 days ago
$112
Roundtrip
found 3 days ago
Select United flight, departing Tue, Oct 28 from O'Hare Intl. to Louisville Intl., returning Thu, Oct 30, priced at $112 found 3 days ago
Tue, Oct 28 - Thu, Oct 30
ORD
O'Hare Intl.
SDF
Louisville Intl.
$171 Roundtrip, found 3 days ago
$171
Roundtrip
found 3 days ago
Select United flight, departing Tue, Oct 28 from O'Hare Intl. to Louisville Intl., returning Thu, Oct 30, priced at $171 found 3 days ago
Tue, Oct 28 - Thu, Oct 30
ORD
O'Hare Intl.
SDF
Louisville Intl.
$173 Roundtrip, found 3 days ago
$173
Roundtrip
found 3 days ago
Select United flight, departing Tue, Oct 28 from O'Hare Intl. to Louisville Intl., returning Thu, Oct 30, priced at $173 found 3 days ago
Sat, Nov 15 - Mon, Nov 17
ORD
O'Hare Intl.
SDF
Louisville Intl.
$175 Roundtrip, found 5 days ago
$175
Roundtrip
found 5 days ago
Select United flight, departing Sat, Nov 15 from O'Hare Intl. to Louisville Intl., returning Mon, Nov 17, priced at $175 found 5 days ago
Thu, Oct 23 - Sat, Oct 25
ORD
O'Hare Intl.
SDF
Louisville Intl.
$240 Roundtrip, found 15 hours ago
$240
Roundtrip
found 15 hours ago
Select United flight, departing Thu, Oct 23 from O'Hare Intl. to Louisville Intl., returning Sat, Oct 25, priced at $240 found 15 hours ago
Thu, Oct 23 - Sat, Oct 25
ORD
O'Hare Intl.
SDF
Louisville Intl.
$252 Roundtrip, found 15 hours ago
$252
Roundtrip
found 15 hours ago
Select United flight, departing Thu, Oct 23 from O'Hare Intl. to Louisville Intl., returning Sat, Oct 25, priced at $252 found 15 hours ago
Thu, Oct 23 - Sat, Oct 25
ORD
O'Hare Intl.
SDF
Louisville Intl.
$271 Roundtrip, found 15 hours ago
$271
Roundtrip
found 15 hours ago
Select United flight, departing Thu, Oct 23 from O'Hare Intl. to Louisville Intl., returning Sat, Oct 25, priced at $271 found 15 hours ago
Thu, Oct 23 - Sun, Oct 26
ORD
O'Hare Intl.
SDF
Louisville Intl.
$273 Roundtrip, found 2 days ago
$273
Roundtrip
found 2 days ago
Select United flight, departing Thu, Oct 23 from O'Hare Intl. to Louisville Intl., returning Sun, Oct 26, priced at $273 found 2 days ago
Thu, Oct 23 - Sun, Oct 26
ORD
O'Hare Intl.
SDF
Louisville Intl.
$286 Roundtrip, found 2 days ago
$286
Roundtrip
found 2 days ago
Select United flight, departing Thu, Oct 23 from O'Hare Intl. to Louisville Intl., returning Sun, Oct 26, priced at $286 found 2 days ago

Frequently asked questions

What route does flight number UA3571 take?
UA3571 serves multiple routes, but the most common is between PIA and O'Hare Intl. Airport (ORD). If you're lucky enough to score a direct flight, you'll step off the plane in approximately 59 minutes. Multi-stop flights can also operate under the same number, as can services on other routes.
What kind of plane is on flight number UA3571?
It's likely you'll be hopping on board the Embraer 175 if you're booked on flight number UA3571 from Peoria Intl. Airport to O'Hare Intl. Airport (ORD). It's the most commonly used aircraft on this busy route.
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 UA3571 flight with Travelocity, please visit our Customer Service Portal.