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  1. Flights
  2. United States
  3. Los Angeles - Ontario, CA
  4. Seattle, WA - Los Angeles - Ontario, CA

Cheap Flights from Seattle, WA (SEA) to Los Angeles - Ontario, CA (ONT)

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Discover the cheapest flights from Seattle, WA to Los Angeles - Ontario, CA
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Mon, Jan 5 - Sat, Jan 10
Frontier Airlines
Frontier AirlinesDirect
SEA - ONT
Frontier Airlines
Frontier AirlinesDirect
ONT - SEA
-19 %
57$
47$
Prime price per passenger
Wed, Feb 11 - Sat, Feb 14
Alaska Airlines
Alaska Airlines1 stop
SEA - ONT
Frontier Airlines
Frontier AirlinesDirect
ONT - SEA
103$
99$
Prime price per passenger
Sun, Jan 18 - Wed, Jan 21
Alaska Airlines
Alaska AirlinesDirect
SEA - ONT
Alaska Airlines
Alaska AirlinesDirect
ONT - SEA
107$
100$
Prime price per passenger
Mon, Feb 2 - Mon, Feb 9
Frontier Airlines
Frontier Airlines1 stop
SEA - ONT
Frontier Airlines
Frontier AirlinesDirect
ONT - SEA
105$
102$
Prime price per passenger
Tue, Feb 24 - Sat, Feb 28
Alaska Airlines
Alaska AirlinesDirect
SEA - ONT
Frontier Airlines
Frontier AirlinesDirect
ONT - SEA
114$
103$
Prime price per passenger
Tue, Dec 23 - Thu, Dec 25
Frontier Airlines
Frontier AirlinesDirect
SEA - ONT
Frontier Airlines
Frontier AirlinesDirect
ONT - SEA
182$
174$
Prime price per passenger
Mon, Jan 5
Frontier Airlines
Frontier AirlinesDirect
SEA - ONT
28$
27$
Prime price per passenger
Mon, Jan 26
Frontier Airlines
Frontier Airlines1 stop
SEA - ONT
-19 %
62$
51$
Prime price per passenger
Fri, Jan 30
Frontier Airlines
Frontier Airlines1 stop
SEA - ONT
-18 %
68$
56$
Prime price per passenger
Wed, Feb 11
Alaska Airlines
Alaska Airlines1 stop
SEA - ONT
78$
73$
Prime price per passenger
Fri, Feb 20
Alaska Airlines
Alaska AirlinesDirect
SEA - ONT
78$
73$
Prime price per passenger
Fri, Jan 2
Alaska Airlines
Alaska AirlinesDirect
SEA - ONT
79$
74$
Prime price per passenger
The prices shown on this page were available within the last 20 days for the specified periods and should not be considered the final price offered. Please note that availability and prices are subject to change.

Cheapest time to fly from Seattle, WA to Los Angeles - Ontario, CA

If you’re planning to fly this route soon, keep in mind that the lowest fares are usually available at the beginning of January. Take advantage of this period to save on your flight tickets and make the most of your trip. Please note that prices may change after your search.
Filter by
week: Jan 5 - Jan 11
Flights from just $68
$160
$102
$68
$74
$81
$78
$78
$126
$94
$83
$81
$83
DecemberJanuaryFebruaryMarch
Flying Time2 h and 40 mWhen flying from Seattle, WA to Los Angeles - Ontario, CA, this can take around 2 h and 40 m in flying time, however this flight duration can vary due to other factors
Cheapest flight$27The best price for flights from Seattle, WA to Los Angeles - Ontario, CA offered by eDreams, which have been found by our customers in the last 3 days
Departure AirportSeattle All Airports Seattle All Airports is where you'll take off when flying from Seattle, WA to Los Angeles - Ontario, CA
Arrival AirportOntario InternationalYou'll land at Ontario International when flying from Seattle, WA to Los Angeles - Ontario, CA
Peak seasonOctoberOctober is the busiest time to fly from Seattle, WA to Los Angeles - Ontario, CA according to search data results from our customers
Airlines operating this routeAlaska Airlines, Frontier AirlinesAirline(s) that fly from Seattle, WA to Los Angeles - Ontario, CA
Best time to bookSeptemberSeptember is one of the most frequent times to fly to Los Angeles - Ontario, CA from Seattle, WA according to real data from our customers
Distance: 967 miles
Seattle, WA airports
Seattle All Airports (SEA)How far from city center: 11 miles
Los Angeles - Ontario, CA airports
Ontario International (ONT)How far from city center: 2 miles

Are you planning to travel to Los Angeles - Ontario, CA for vacations, business or family visits? eDreams offers you the cheapest flights and best deals departing from Seattle, WA. With our fast search engine you will get a large selection of airfares from standard and low cost airlines worldwide and easily book your tickets for this route. If you are flexible we help you identify the cheapest day to fly to Los Angeles - Ontario, CA and if you need to leave soon you can check our most convenient last minute fares. Read all the useful information about your next destination and proceed to the reservation, indicating your flight dates and completing your travel booking with hotels and car rental!

Frequently asked questions about flights from Seattle, WA to Los Angeles - Ontario, CA

What are the benefits of booking flexible flight tickets?
Using the flexible flight ticket, you're guaranteed a refund or a rebooking option (without fees) in case of flight cancellations when travelling to United States. At eDreams have you covered!
For flights from Seattle, WA to Los Angeles - Ontario, CA, how can I find the cheapest price?
The cheapest price for a flight from Seattle, WA to Los Angeles - Ontario, CA is $27. At eDreams we use different machine learned based methodologies to find our costumers the best option available, considering airline combinations, stopovers and direct flights as well as different criteria for inbound and outbound journeys.
When booking, when is the best time to get the best prices for flights from Seattle, WA to Los Angeles - Ontario, CA?
The most popular months to book a trip from Seattle, WA to Los Angeles - Ontario, CA are September, August and April, based on the searches of our customers.
When is the best time to travel from Seattle, WA to Los Angeles - Ontario, CA?
The best time of the year to visit Los Angeles - Ontario, CA depends on lots of personal preferences, especially the price. Regarding popularity, October is the best month to fly to Los Angeles - Ontario, CA from Seattle, WA in terms of searches from our customers, followed by December and April. If you prefer to avoid the busy season and get away from the crowds January, February and March are the months with fewer searches for Seattle, WA - Los Angeles - Ontario, CA.
How long does the flight from Seattle, WA to Los Angeles - Ontario, CA take?
Flight length from Seattle, WA to Los Angeles - Ontario, CA is around 02:40 hours on average, at an average distance of 1,541 km, for flights for the route (which may have 1 or more stops in other cities in between).
How is the weather in Los Angeles - Ontario, CA compared to Seattle, WA?
While in Seattle, WA the temperatures can reach an average of 31.31 ºC in summer, with precipitation levels up to 9 mm ,Los Angeles - Ontario, CA's temperatures can go up to 36.7 ºC during the hot season, with 1.4 mm average of rain rate . In winter, however, weather indicators show around -0.46 ºC in Los Angeles - Ontario, CA, compared to the -3.71 ºC average degrees reported in Seattle, WA. During the winter period, Seattle, WA can register 12 mm precipitation, while Los Angeles - Ontario, CA have an average of 3 mm rain level.

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