Flights from San Bernardino to Seattle

Cheapest flights from San Bernardino

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.

Wed, Aug 6 - Tue, Aug 19

ONT

Los Angeles - Ontario Intl.

SEA

Seattle - Tacoma Intl.

$130 Roundtrip, found 22 hours ago

$130

Roundtrip

found 22 hours ago

Select Frontier Airlines flight, departing Wed, Aug 6 from Los Angeles - Ontario Intl. to Seattle - Tacoma Intl., returning Tue, Aug 19, priced at $130 found 22 hours ago

Wed, Aug 6 - Sat, Aug 16

ONT

Los Angeles - Ontario Intl.

SEA

Seattle - Tacoma Intl.

$140 Roundtrip, found 3 days ago

$140

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Wed, Aug 6 from Los Angeles - Ontario Intl. to Seattle - Tacoma Intl., returning Sat, Aug 16, priced at $140 found 3 days ago

Wed, Aug 6 - Tue, Aug 19

ONT

Los Angeles - Ontario Intl.

SEA

Seattle - Tacoma Intl.

$140 Roundtrip, found 22 hours ago

$140

Roundtrip

found 22 hours ago

Select Frontier Airlines flight, departing Wed, Aug 6 from Los Angeles - Ontario Intl. to Seattle - Tacoma Intl., returning Tue, Aug 19, priced at $140 found 22 hours ago

Wed, Aug 6 - Sat, Aug 16

ONT

Los Angeles - Ontario Intl.

SEA

Seattle - Tacoma Intl.

$149 Roundtrip, found 3 days ago

$149

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Wed, Aug 6 from Los Angeles - Ontario Intl. to Seattle - Tacoma Intl., returning Sat, Aug 16, priced at $149 found 3 days ago

Tue, Jul 22 - Fri, Jul 25

ONT

Los Angeles - Ontario Intl.

SEA

Seattle - Tacoma Intl.

$150 Roundtrip, found 3 days ago

$150

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Tue, Jul 22 from Los Angeles - Ontario Intl. to Seattle - Tacoma Intl., returning Fri, Jul 25, priced at $150 found 3 days ago

Tue, Aug 5 - Thu, Aug 14

ONT

Los Angeles - Ontario Intl.

SEA

Seattle - Tacoma Intl.

$150 Roundtrip, found 4 days ago

$150

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Tue, Aug 5 from Los Angeles - Ontario Intl. to Seattle - Tacoma Intl., returning Thu, Aug 14, priced at $150 found 4 days ago

Wed, Aug 6 - Tue, Aug 19

ONT

Los Angeles - Ontario Intl.

SEA

Seattle - Tacoma Intl.

$153 Roundtrip, found 22 hours ago

$153

Roundtrip

found 22 hours ago

Select Frontier Airlines flight, departing Wed, Aug 6 from Los Angeles - Ontario Intl. to Seattle - Tacoma Intl., returning Tue, Aug 19, priced at $153 found 22 hours ago

Wed, Aug 6 - Tue, Aug 19

ONT

Los Angeles - Ontario Intl.

SEA

Seattle - Tacoma Intl.

$157 Roundtrip, found 22 hours ago

$157

Roundtrip

found 22 hours ago

Select Alaska Airlines flight, departing Wed, Aug 6 from Los Angeles - Ontario Intl. to Seattle - Tacoma Intl., returning Tue, Aug 19, priced at $157 found 22 hours ago

Wed, Aug 6 - Tue, Aug 19

ONT

Los Angeles - Ontario Intl.

SEA

Seattle - Tacoma Intl.

$157 Roundtrip, found 22 hours ago

$157

Roundtrip

found 22 hours ago

Select Delta flight, departing Wed, Aug 6 from Los Angeles - Ontario Intl. to Seattle - Tacoma Intl., returning Tue, Aug 19, priced at $157 found 22 hours ago

Tue, Jul 22 - Fri, Jul 25

ONT

Los Angeles - Ontario Intl.

SEA

Seattle - Tacoma Intl.

$159 Roundtrip, found 3 days ago

$159

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Tue, Jul 22 from Los Angeles - Ontario Intl. to Seattle - Tacoma Intl., returning Fri, Jul 25, priced at $159 found 3 days ago

Mon, Aug 4 - Tue, Aug 19

ONT

Los Angeles - Ontario Intl.

SEA

Seattle - Tacoma Intl.

$159 Roundtrip, found 4 days ago

$159

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Mon, Aug 4 from Los Angeles - Ontario Intl. to Seattle - Tacoma Intl., returning Tue, Aug 19, priced at $159 found 4 days ago

Wed, Aug 6 - Tue, Aug 19

ONT

Los Angeles - Ontario Intl.

SEA

Seattle - Tacoma Intl.

$163 Roundtrip, found 22 hours ago

$163

Roundtrip

found 22 hours ago

Select Frontier Airlines flight, departing Wed, Aug 6 from Los Angeles - Ontario Intl. to Seattle - Tacoma Intl., returning Tue, Aug 19, priced at $163 found 22 hours ago

Sun, Aug 3 - Tue, Aug 19

ONT

Los Angeles - Ontario Intl.

SEA

Seattle - Tacoma Intl.

$164 Roundtrip, found 4 days ago

$164

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Sun, Aug 3 from Los Angeles - Ontario Intl. to Seattle - Tacoma Intl., returning Tue, Aug 19, priced at $164 found 4 days ago

Wed, Aug 6 - Sat, Aug 16

ONT

Los Angeles - Ontario Intl.

SEA

Seattle - Tacoma Intl.

$167 Roundtrip, found 3 days ago

$167

Roundtrip

found 3 days ago

Select Alaska Airlines flight, departing Wed, Aug 6 from Los Angeles - Ontario Intl. to Seattle - Tacoma Intl., returning Sat, Aug 16, priced at $167 found 3 days ago

Fri, Aug 8 - Tue, Aug 19

ONT

Los Angeles - Ontario Intl.

SEA

Seattle - Tacoma Intl.

$169 Roundtrip, found 4 days ago

$169

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Fri, Aug 8 from Los Angeles - Ontario Intl. to Seattle - Tacoma Intl., returning Tue, Aug 19, priced at $169 found 4 days ago

Wed, Aug 6 - Tue, Aug 19

ONT

Los Angeles - Ontario Intl.

SEA

Seattle - Tacoma Intl.

$177 Roundtrip, found 22 hours ago

$177

Roundtrip

found 22 hours ago

Select United flight, departing Wed, Aug 6 from Los Angeles - Ontario Intl. to Seattle - Tacoma Intl., returning Tue, Aug 19, priced at $177 found 22 hours ago

Tue, Aug 12 - Tue, Aug 19

PSP

Palm Springs Intl.

SEA

Seattle - Tacoma Intl.

$177 Roundtrip, found 2 days ago

$177

Roundtrip

found 2 days ago

Select Alaska Airlines flight, departing Tue, Aug 12 from Palm Springs Intl. to Seattle - Tacoma Intl., returning Tue, Aug 19, priced at $177 found 2 days ago

Sat, Sep 20 - Sat, Oct 4

ONT

Los Angeles - Ontario Intl.

SEA

Seattle - Tacoma Intl.

$177 Roundtrip, found 2 days ago

$177

Roundtrip

found 2 days ago

Select Hawaiian Airlines flight, departing Sat, Sep 20 from Los Angeles - Ontario Intl. to Seattle - Tacoma Intl., returning Sat, Oct 4, priced at $177 found 2 days ago

Tue, Sep 23 - Sat, Oct 4

ONT

Los Angeles - Ontario Intl.

SEA

Seattle - Tacoma Intl.

$197 Roundtrip, found 2 days ago

$197

Roundtrip

found 2 days ago

Select American Airlines flight, departing Tue, Sep 23 from Los Angeles - Ontario Intl. to Seattle - Tacoma Intl., returning Sat, Oct 4, priced at $197 found 2 days ago

Fri, Aug 8 - Mon, Aug 11

ONT

Los Angeles - Ontario Intl.

PAE

Seattle Paine Field Intl. Airport

$254 Roundtrip, found 3 days ago

$254

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Aug 8 from Los Angeles - Ontario Intl. to Seattle Paine Field Intl. Airport, returning Mon, Aug 11, priced at $254 found 3 days ago