United Flight AA4179 Deals & Information (2025/2026)

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United Flight 4179 Route Deals From $107

The cheapest prices found with in the last 7 days for return flights were $217 and $107 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Sep 8 - Thu, Sep 11
BUF
Buffalo Niagara Intl.
ORD
O'Hare Intl.
$217 Roundtrip, found 7 hours ago
$217
Roundtrip
found 7 hours ago
Select United flight, departing Mon, Sep 8 from Buffalo Niagara Intl. to O'Hare Intl., returning Thu, Sep 11, priced at $217 found 7 hours ago
Mon, Aug 25 - Sat, Aug 30
BUF
Buffalo Niagara Intl.
ORD
O'Hare Intl.
$229 Roundtrip, found 1 day ago
$229
Roundtrip
found 1 day ago
Select United flight, departing Mon, Aug 25 from Buffalo Niagara Intl. to O'Hare Intl., returning Sat, Aug 30, priced at $229 found 1 day ago
Sat, Aug 2 - Mon, Aug 4
BUF
Buffalo Niagara Intl.
ORD
O'Hare Intl.
$230 Roundtrip, found 1 day ago
$230
Roundtrip
found 1 day ago
Select United flight, departing Sat, Aug 2 from Buffalo Niagara Intl. to O'Hare Intl., returning Mon, Aug 4, priced at $230 found 1 day ago
Mon, Aug 11 - Thu, Aug 14
BUF
Buffalo Niagara Intl.
ORD
O'Hare Intl.
$242 Roundtrip, found 11 hours ago
$242
Roundtrip
found 11 hours ago
Select United flight, departing Mon, Aug 11 from Buffalo Niagara Intl. to O'Hare Intl., returning Thu, Aug 14, priced at $242 found 11 hours ago
Mon, Aug 25 - Sat, Aug 30
BUF
Buffalo Niagara Intl.
ORD
O'Hare Intl.
$246 Roundtrip, found 1 day ago
$246
Roundtrip
found 1 day ago
Select United flight, departing Mon, Aug 25 from Buffalo Niagara Intl. to O'Hare Intl., returning Sat, Aug 30, priced at $246 found 1 day ago
Mon, Sep 8 - Thu, Sep 11
BUF
Buffalo Niagara Intl.
ORD
O'Hare Intl.
$247 Roundtrip, found 7 hours ago
$247
Roundtrip
found 7 hours ago
Select United flight, departing Mon, Sep 8 from Buffalo Niagara Intl. to O'Hare Intl., returning Thu, Sep 11, priced at $247 found 7 hours ago
Thu, Aug 14 - Sun, Aug 17
BUF
Buffalo Niagara Intl.
ORD
O'Hare Intl.
$257 Roundtrip, found 4 hours ago
$257
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Aug 14 from Buffalo Niagara Intl. to O'Hare Intl., returning Sun, Aug 17, priced at $257 found 4 hours ago