Cheap Flights from Ontario, CA (ONT) to Seattle (SEA)

Last minute flights from Ontario, CA to Seattle

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Prices shown below were available within the past 3 days for the period specified and should not be considered the final price offered. Please note that availability and prices are subject to change.

Ontario, CA Seattle

BEST

DEAL

Tue, 17 Dec ONT - SEA

Wed, 25 Dec SEA - ONT

-17 %

$65 $54

Prime price per passenger

Ontario, CA Seattle

BEST

DEAL

Tue, 26 Nov ONT - SEA

$22 $21

Prime price per passenger

Ontario, CA Seattle

BEST

DEAL

Thu, 28 Nov ONT - SEA

Wed, 18 Dec SEA - ONT

-17 %

$58 $48

Prime price per passenger

Ontario, CA Seattle

BEST

DEAL

Thu, 28 Nov ONT - SEA

Fri, 06 Dec SEA - ONT

$114 $108

Prime price per passenger

Ontario, CA Seattle

BEST

DEAL

Thu, 05 Dec ONT - SEA

Sun, 15 Dec SEA - ONT

$107 $104

Prime price per passenger

Ontario, CA Seattle

BEST

DEAL

Thu, 12 Dec ONT - SEA

Sun, 15 Dec SEA - ONT

$107 $104

Prime price per passenger

Route information

Distance: 967 miles

Ontario, CA airports

Ontario International (ONT) How far from city center: 2 miles

Seattle airports

Seattle All Airports (SEA) How far from city center: 11 miles

Are you searching for flights from Ontario, CA to Seattle?

Are you planning to travel to Seattle for vacations, business or family visits? eDreams offers you the cheapest flights and best deals departing from Ontario, CA. 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 Seattle 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 Ontario, CA to Seattle

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 Ontario, CA to Seattle, how can I find the cheapest price?

The cheapest price for a flight from Ontario, CA to Seattle is $21. 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 Ontario, CA to Seattle?

The most popular months to book a trip from Ontario, CA to Seattle are September, August and July, based on the searches of our customers.

When is the best time to travel from Ontario, CA to Seattle?

The best time of the year to visit Seattle depends on lots of personal preferences, especially the price. Regarding popularity, September is the best month to fly to Seattle from Ontario, CA in terms of searches from our customers, followed by August and October. If you prefer to avoid the busy season and get away from the crowds January, March and November are the months with fewer searches for Ontario, CA - Seattle.

How is the weather in Seattle compared to Ontario, CA?

While in Ontario, CA the temperatures can reach an average of 36.7 ºC in summer, with precipitation levels up to 1.4 mm ,Seattle's temperatures can go up to 31.31 ºC during the hot season, with 9.0 mm average of rain rate . In winter, however, weather indicators show around -3.71 ºC in Seattle, compared to the -0.46 ºC average degrees reported in Ontario, CA. During the winter period, Ontario, CA can register 3.0 mm precipitation, while Seattle have an average of 12.0 mm rain level.

Which airports have flights between Ontario, CA and Seattle?

The main route from Ontario, CA to Seattle is: Ontario International (ONT) to Seattle All Airports (SEA). The following airlines fly this route: Alaska Airlines.

Which airlines fly from Ontario, CA to Seattle?

The airlines that fly non-stop from Ontario, CA to Seattle are:

Alaska Airlines.
United Airlines.

Cheapest flight $21 The best price for flights from Ontario, CA to Seattle offered by eDreams, which have been found by our customers in the last 3 days

Departure Airport Ontario International Ontario International is where you'll take off when flying from Ontario, CA to Seattle

Arrival Airport Seattle All Airports You'll land at Seattle All Airports when flying from Ontario, CA to Seattle

Peak season September September is the busiest time to fly from Ontario, CA to Seattle according to search data results from our customers