United Flight 5821 Deals & Information (2026/2027)

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United Flight 5821 Route Deals From $91

The cheapest prices found with in the last 7 days for return flights were $199 and $91 for one-way flights to General Mitchell Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Feb 28 - Sun, Mar 1
ORD
O'Hare Intl.
MKE
General Mitchell Intl.
$199 Roundtrip, found 6 days ago
$199
Roundtrip
found 6 days ago
Select United flight, departing Sat, Feb 28 from O'Hare Intl. to General Mitchell Intl., returning Sun, Mar 1, priced at $199 found 6 days ago
Sat, Feb 28 - Sun, Mar 1
ORD
O'Hare Intl.
MKE
General Mitchell Intl.
$220 Roundtrip, found 6 days ago
$220
Roundtrip
found 6 days ago
Select United flight, departing Sat, Feb 28 from O'Hare Intl. to General Mitchell Intl., returning Sun, Mar 1, priced at $220 found 6 days ago
Tue, Jan 20 - Wed, Jan 21
ORD
O'Hare Intl.
MKE
General Mitchell Intl.
$244 Roundtrip, found 2 days ago
$244
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jan 20 from O'Hare Intl. to General Mitchell Intl., returning Wed, Jan 21, priced at $244 found 2 days ago