American Airlines Flight UA518 Deals & Information (2025/2026)

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American Airlines Flight 518 Route Deals From $70

The cheapest prices found with in the last 7 days for return flights were $139 and $70 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Oct 8 - Tue, Oct 14
SAN
San Diego Intl.
ORD
O'Hare Intl.
$139 Roundtrip, found 4 days ago
$139
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Oct 8 from San Diego Intl. to O'Hare Intl., returning Tue, Oct 14, priced at $139 found 4 days ago
Fri, Sep 26 - Tue, Sep 30
CLD
McClellan-Palomar
ORD
O'Hare Intl.
$178 Roundtrip, found 9 hours ago
$178
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Fri, Sep 26 from McClellan-Palomar to O'Hare Intl., returning Tue, Sep 30, priced at $178 found 9 hours ago
Tue, Aug 12 - Thu, Aug 14
CLD
McClellan-Palomar
ORD
O'Hare Intl.
$188 Roundtrip, found 2 days ago
$188
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Aug 12 from McClellan-Palomar to O'Hare Intl., returning Thu, Aug 14, priced at $188 found 2 days ago
Wed, Nov 12 - Thu, Nov 27
CLD
McClellan-Palomar
ORD
O'Hare Intl.
$189 Roundtrip, found 5 days ago
$189
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Nov 12 from McClellan-Palomar to O'Hare Intl., returning Thu, Nov 27, priced at $189 found 5 days ago
Thu, Aug 21 - Mon, Aug 25
CLD
McClellan-Palomar
ORD
O'Hare Intl.
$197 Roundtrip, found 4 days ago
$197
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Aug 21 from McClellan-Palomar to O'Hare Intl., returning Mon, Aug 25, priced at $197 found 4 days ago
Sun, Nov 23 - Mon, Nov 24
CLD
McClellan-Palomar
ORD
O'Hare Intl.
$213 Roundtrip, found 4 hours ago
$213
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Sun, Nov 23 from McClellan-Palomar to O'Hare Intl., returning Mon, Nov 24, priced at $213 found 4 hours ago
Wed, Sep 3 - Mon, Sep 8
CLD
McClellan-Palomar
ORD
O'Hare Intl.
$220 Roundtrip, found 3 days ago
$220
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Sep 3 from McClellan-Palomar to O'Hare Intl., returning Mon, Sep 8, priced at $220 found 3 days ago
Tue, Sep 2 - Thu, Sep 4
CLD
McClellan-Palomar
ORD
O'Hare Intl.
$221 Roundtrip, found 9 hours ago
$221
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Tue, Sep 2 from McClellan-Palomar to O'Hare Intl., returning Thu, Sep 4, priced at $221 found 9 hours ago
Wed, Aug 20 - Sun, Aug 24
CLD
McClellan-Palomar
ORD
O'Hare Intl.
$223 Roundtrip, found 4 days ago
$223
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Aug 20 from McClellan-Palomar to O'Hare Intl., returning Sun, Aug 24, priced at $223 found 4 days ago
Tue, Aug 12 - Tue, Aug 19
CLD
McClellan-Palomar
ORD
O'Hare Intl.
$223 Roundtrip, found 2 days ago
$223
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Aug 12 from McClellan-Palomar to O'Hare Intl., returning Tue, Aug 19, priced at $223 found 2 days ago