Flights from Chicago to National City

Cheapest flights from Chicago

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Oct 18 - Thu, Oct 23

ORD

O'Hare Intl.

SAN

San Diego Intl.

$102 Roundtrip, found 8 hours ago

$102

Roundtrip

found 8 hours ago

Select Frontier Airlines flight, departing Sat, Oct 18 from O'Hare Intl. to San Diego Intl., returning Thu, Oct 23, priced at $102 found 8 hours ago

Fri, Oct 17 - Thu, Oct 23

ORD

O'Hare Intl.

SAN

San Diego Intl.

$112 Roundtrip, found 8 hours ago

$112

Roundtrip

found 8 hours ago

Select Frontier Airlines flight, departing Fri, Oct 17 from O'Hare Intl. to San Diego Intl., returning Thu, Oct 23, priced at $112 found 8 hours ago

Sat, Oct 18 - Tue, Oct 28

ORD

O'Hare Intl.

SAN

San Diego Intl.

$117 Roundtrip, found 8 hours ago

$117

Roundtrip

found 8 hours ago

Select Hawaiian Airlines flight, departing Sat, Oct 18 from O'Hare Intl. to San Diego Intl., returning Tue, Oct 28, priced at $117 found 8 hours ago

Fri, Oct 17 - Fri, Oct 24

ORD

O'Hare Intl.

SAN

San Diego Intl.

$122 Roundtrip, found 8 hours ago

$122

Roundtrip

found 8 hours ago

Select Frontier Airlines flight, departing Fri, Oct 17 from O'Hare Intl. to San Diego Intl., returning Fri, Oct 24, priced at $122 found 8 hours ago

Fri, Oct 17 - Tue, Oct 28

ORD

O'Hare Intl.

SAN

San Diego Intl.

$132 Roundtrip, found 8 hours ago

$132

Roundtrip

found 8 hours ago

Select Hawaiian Airlines flight, departing Fri, Oct 17 from O'Hare Intl. to San Diego Intl., returning Tue, Oct 28, priced at $132 found 8 hours ago

Sat, Oct 18 - Tue, Oct 28

ORD

O'Hare Intl.

SAN

San Diego Intl.

$139 Roundtrip, found 3 days ago

$139

Roundtrip

found 3 days ago

Select Hawaiian Airlines flight, departing Sat, Oct 18 from O'Hare Intl. to San Diego Intl., returning Tue, Oct 28, priced at $139 found 3 days ago

Sat, Sep 20 - Sun, Sep 21

ORD

O'Hare Intl.

SAN

San Diego Intl.

$144 Roundtrip, found 3 days ago

$144

Roundtrip

found 3 days ago

Select American Airlines flight, departing Sat, Sep 20 from O'Hare Intl. to San Diego Intl., returning Sun, Sep 21, priced at $144 found 3 days ago

Sat, Oct 18 - Sun, Oct 26

ORD

O'Hare Intl.

SAN

San Diego Intl.

$145 Roundtrip, found 3 days ago

$145

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sat, Oct 18 from O'Hare Intl. to San Diego Intl., returning Sun, Oct 26, priced at $145 found 3 days ago

Fri, Sep 19 - Fri, Sep 19

ORD

O'Hare Intl.

SAN

San Diego Intl.

$148 Roundtrip, found 3 days ago

$148

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Sep 19 from O'Hare Intl. to San Diego Intl., returning Fri, Sep 19, priced at $148 found 3 days ago

Sun, Oct 19 - Tue, Oct 28

ORD

O'Hare Intl.

SAN

San Diego Intl.

$157 Roundtrip, found 8 hours ago

$157

Roundtrip

found 8 hours ago

Select Hawaiian Airlines flight, departing Sun, Oct 19 from O'Hare Intl. to San Diego Intl., returning Tue, Oct 28, priced at $157 found 8 hours ago

Tue, Oct 21 - Fri, Oct 31

ORD

O'Hare Intl.

SAN

San Diego Intl.

$159 Roundtrip, found 3 days ago

$159

Roundtrip

found 3 days ago

Select Hawaiian Airlines flight, departing Tue, Oct 21 from O'Hare Intl. to San Diego Intl., returning Fri, Oct 31, priced at $159 found 3 days ago

Sat, Oct 18 - Thu, Oct 30

ORD

O'Hare Intl.

SAN

San Diego Intl.

$160 Roundtrip, found 3 days ago

$160

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sat, Oct 18 from O'Hare Intl. to San Diego Intl., returning Thu, Oct 30, priced at $160 found 3 days ago

Sun, Oct 19 - Thu, Oct 30

ORD

O'Hare Intl.

SAN

San Diego Intl.

$163 Roundtrip, found 3 days ago

$163

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sun, Oct 19 from O'Hare Intl. to San Diego Intl., returning Thu, Oct 30, priced at $163 found 3 days ago

Sat, Sep 20 - Sun, Sep 21

ORD

O'Hare Intl.

SAN

San Diego Intl.

$168 Roundtrip, found 3 days ago

$168

Roundtrip

found 3 days ago

Select United flight, departing Sat, Sep 20 from O'Hare Intl. to San Diego Intl., returning Sun, Sep 21, priced at $168 found 3 days ago

Sat, Sep 20 - Sun, Sep 21

ORD

O'Hare Intl.

SAN

San Diego Intl.

$168 Roundtrip, found 3 days ago

$168

Roundtrip

found 3 days ago

Select American Airlines flight, departing Sat, Sep 20 from O'Hare Intl. to San Diego Intl., returning Sun, Sep 21, priced at $168 found 3 days ago

Wed, Sep 17 - Sat, Sep 20

ORD

O'Hare Intl.

SAN

San Diego Intl.

$210 Roundtrip, found 3 days ago

$210

Roundtrip

found 3 days ago

Select Alaska Airlines flight, departing Wed, Sep 17 from O'Hare Intl. to San Diego Intl., returning Sat, Sep 20, priced at $210 found 3 days ago

Sat, Sep 20 - Sun, Sep 21

ORD

O'Hare Intl.

SAN

San Diego Intl.

$212 Roundtrip, found 3 days ago

$212

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Sat, Sep 20 from O'Hare Intl. to San Diego Intl., returning Sun, Sep 21, priced at $212 found 3 days ago

Wed, Sep 17 - Wed, Sep 17

ORD

O'Hare Intl.

SAN

San Diego Intl.

$251 Roundtrip, found 3 days ago

$251

Roundtrip

found 3 days ago

Select Delta flight, departing Wed, Sep 17 from O'Hare Intl. to San Diego Intl., returning Wed, Sep 17, priced at $251 found 3 days ago

Mon, Aug 25 - Thu, Aug 28

ORD

O'Hare Intl.

CLD

McClellan-Palomar

$254 Roundtrip, found 1 day ago

$254

Roundtrip

found 1 day ago

Select American Airlines flight, departing Mon, Aug 25 from O'Hare Intl. to McClellan-Palomar, returning Thu, Aug 28, priced at $254 found 1 day ago

Sat, Sep 20 - Sun, Sep 21

MDW

Midway Intl.

SAN

San Diego Intl.

$292 Roundtrip, found 3 days ago

$292

Roundtrip

found 3 days ago

Select Delta flight, departing Sat, Sep 20 from Midway Intl. to San Diego Intl., returning Sun, Sep 21, priced at $292 found 3 days ago