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.

Tue, Jul 1 - Sat, Jul 5

ORD

O'Hare Intl.

SAN

San Diego Intl.

$208 Roundtrip, just found

$208

Roundtrip

just found

Select Frontier Airlines flight, departing Tue, Jul 1 from O'Hare Intl. to San Diego Intl., returning Sat, Jul 5, priced at $208 just found

Tue, Jul 1 - Thu, Jul 3

ORD

O'Hare Intl.

SAN

San Diego Intl.

$223 Roundtrip, just found

$223

Roundtrip

just found

Select Frontier Airlines flight, departing Tue, Jul 1 from O'Hare Intl. to San Diego Intl., returning Thu, Jul 3, priced at $223 just found

Mon, Jun 30 - Mon, Jul 7

ORD

O'Hare Intl.

SAN

San Diego Intl.

$225 Roundtrip, just found

$225

Roundtrip

just found

Select Spirit Airlines flight, departing Mon, Jun 30 from O'Hare Intl. to San Diego Intl., returning Mon, Jul 7, priced at $225 just found

Sat, Aug 30 - Tue, Sep 2

ORD

O'Hare Intl.

SAN

San Diego Intl.

$230 Roundtrip, found 3 days ago

$230

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sat, Aug 30 from O'Hare Intl. to San Diego Intl., returning Tue, Sep 2, priced at $230 found 3 days ago

Sun, Jun 29 - Mon, Jul 7

ORD

O'Hare Intl.

SAN

San Diego Intl.

$232 Roundtrip, just found

$232

Roundtrip

just found

Select Spirit Airlines flight, departing Sun, Jun 29 from O'Hare Intl. to San Diego Intl., returning Mon, Jul 7, priced at $232 just found

Sat, Aug 30 - Mon, Sep 1

ORD

O'Hare Intl.

SAN

San Diego Intl.

$234 Roundtrip, found 3 days ago

$234

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sat, Aug 30 from O'Hare Intl. to San Diego Intl., returning Mon, Sep 1, priced at $234 found 3 days ago

Sun, Aug 31 - Thu, Sep 4

ORD

O'Hare Intl.

SAN

San Diego Intl.

$236 Roundtrip, found 3 days ago

$236

Roundtrip

found 3 days ago

Select United flight, departing Sun, Aug 31 from O'Hare Intl. to San Diego Intl., returning Thu, Sep 4, priced at $236 found 3 days ago

Sun, Aug 31 - Thu, Sep 4

ORD

O'Hare Intl.

SAN

San Diego Intl.

$237 Roundtrip, found 3 days ago

$237

Roundtrip

found 3 days ago

Select United flight, departing Sun, Aug 31 from O'Hare Intl. to San Diego Intl., returning Thu, Sep 4, priced at $237 found 3 days ago

Sun, Aug 31 - Thu, Sep 4

ORD

O'Hare Intl.

SAN

San Diego Intl.

$237 Roundtrip, found 3 days ago

$237

Roundtrip

found 3 days ago

Select American Airlines flight, departing Sun, Aug 31 from O'Hare Intl. to San Diego Intl., returning Thu, Sep 4, priced at $237 found 3 days ago

Sun, Jun 29 - Thu, Jul 3

ORD

O'Hare Intl.

SAN

San Diego Intl.

$238 Roundtrip, just found

$238

Roundtrip

just found

Select Frontier Airlines flight, departing Sun, Jun 29 from O'Hare Intl. to San Diego Intl., returning Thu, Jul 3, priced at $238 just found

Sat, Jul 5 - Sat, Jul 5

ORD

O'Hare Intl.

SAN

San Diego Intl.

$239 Roundtrip, just found

$239

Roundtrip

just found

Select Frontier Airlines flight, departing Sat, Jul 5 from O'Hare Intl. to San Diego Intl., returning Sat, Jul 5, priced at $239 just found

Sun, Aug 31 - Thu, Sep 4

ORD

O'Hare Intl.

SAN

San Diego Intl.

$244 Roundtrip, found 3 days ago

$244

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sun, Aug 31 from O'Hare Intl. to San Diego Intl., returning Thu, Sep 4, priced at $244 found 3 days ago

Sun, Aug 31 - Thu, Sep 4

ORD

O'Hare Intl.

SAN

San Diego Intl.

$246 Roundtrip, found 3 days ago

$246

Roundtrip

found 3 days ago

Select Delta flight, departing Sun, Aug 31 from O'Hare Intl. to San Diego Intl., returning Thu, Sep 4, priced at $246 found 3 days ago

Sun, Aug 31 - Thu, Sep 4

ORD

O'Hare Intl.

SAN

San Diego Intl.

$247 Roundtrip, found 3 days ago

$247

Roundtrip

found 3 days ago

Select Delta flight, departing Sun, Aug 31 from O'Hare Intl. to San Diego Intl., returning Thu, Sep 4, priced at $247 found 3 days ago

Wed, Sep 3 - Wed, Sep 3

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

Fri, Jul 4 - Fri, Jul 4

ORD

O'Hare Intl.

SAN

San Diego Intl.

$254 Roundtrip, just found

$254

Roundtrip

just found

Select Frontier Airlines flight, departing Fri, Jul 4 from O'Hare Intl. to San Diego Intl., returning Fri, Jul 4, priced at $254 just found

Sun, Aug 31 - Thu, Sep 4

ORD

O'Hare Intl.

SAN

San Diego Intl.

$257 Roundtrip, found 3 days ago

$257

Roundtrip

found 3 days ago

Select Delta flight, departing Sun, Aug 31 from O'Hare Intl. to San Diego Intl., returning Thu, Sep 4, priced at $257 found 3 days ago

Tue, Sep 2 - Tue, Sep 2

ORD

O'Hare Intl.

SAN

San Diego Intl.

$272 Roundtrip, found 3 days ago

$272

Roundtrip

found 3 days ago

Select Alaska Airlines flight, departing Tue, Sep 2 from O'Hare Intl. to San Diego Intl., returning Tue, Sep 2, priced at $272 found 3 days ago

Sun, Aug 31 - Thu, Sep 4

ORD

O'Hare Intl.

CLD

McClellan-Palomar

$297 Roundtrip, found 3 days ago

$297

Roundtrip

found 3 days ago

Select American Airlines flight, departing Sun, Aug 31 from O'Hare Intl. to McClellan-Palomar, returning Thu, Sep 4, priced at $297 found 3 days ago

Sun, Aug 31 - Thu, Sep 4

ORD

O'Hare Intl.

SAN

San Diego Intl.

$638 Roundtrip, found 3 days ago

$638

Roundtrip

found 3 days ago

Select JetBlue Airways flight, departing Sun, Aug 31 from O'Hare Intl. to San Diego Intl., returning Thu, Sep 4, priced at $638 found 3 days ago