
$77 Cheap Frontier Airlines flights Seattle (SEA) to Ontario (ONT)
Prices were available within the past 7 days and start at $77 for one-way flights and $154 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Oct 1 - Thu, Oct 9
SEA
Seattle
ONT
Ontario
$154 Roundtrip, found 3 days ago
$154
Roundtrip
found 3 days ago

Tue, Nov 18 - Tue, Nov 25
SEA
Seattle
ONT
Ontario
$156 Roundtrip, found 1 day ago
$156
Roundtrip
found 1 day ago

Tue, Sep 30 - Thu, Oct 9
SEA
Seattle
ONT
Ontario
$159 Roundtrip, found 3 days ago
$159
Roundtrip
found 3 days ago

Wed, Nov 5 - Tue, Nov 18
SEA
Seattle
ONT
Ontario
$166 Roundtrip, found 6 hours ago
$166
Roundtrip
found 6 hours ago

Mon, Oct 27 - Sun, Nov 2
SEA
Seattle
ONT
Ontario
$168 Roundtrip, found 1 day ago
$168
Roundtrip
found 1 day ago

Thu, Oct 2 - Mon, Oct 6
SEA
Seattle
ONT
Ontario
$169 Roundtrip, found 3 days ago
$169
Roundtrip
found 3 days ago
Origin airport | Seattle - Tacoma Intl. |
Destination airport | Los Angeles - Ontario Intl. |
Airlines serving | Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, United |
Popular airline | Alaska Airlines |
Distance | 1530 km |
Average flight time | 2 hours 59 mins |
Most Popular Frontier Airlines Routes from Seattle
Most Popular Frontier Airlines Routes from Ontario
- Orlando to San Juan (MCO - SJU)
- Baltimore to Miami (BWI - MIA)
- Newark Liberty Intl. Airport to Raleigh (EWR - RDU)
- New York to San Juan (JFK - SJU)
- Detroit to Houston (DTW - IAH)
- Tampa to Newark Liberty Intl. Airport (TPA - EWR)
- New York to Orlando (JFK - MCO)
- Dallas to Chicago (DFW - ORD)
- Chicago to Miami (MDW - MIA)
- New York to Los Angeles (JFK - LAX)
Popular Domestic Routes in Los Angeles - Ontario Intl.
- New York to Austin (JFK - AUS)
- New York to Orlando (JFK - MCO)
- Dallas to Chicago (DFW - ORD)
- Cleveland to Houston (CLE - IAH)
- Dallas to Chicago (DFW - ORD)
- Los Angeles to Nashville (LAX - BNA)
- Dallas to Los Angeles (DFW - LAX)
- New York to Los Angeles (JFK - LAX)
- Detroit to Houston (DTW - IAH)
- New York to Austin (JFK - AUS)