Cheap flights from Seattle to Ontario from $99
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Ontario departing on 1/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Deals available from 900+ travel sites.
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Seattle to Ontario
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Cheap bus & train deals from Seattle to Ontario
All round-trip flight deals to Ontario
Alaska Airlines flights from Seattle to Region of Ontario
Our best Alaska Airlines deals on Seattle to Region of Ontario flight tickets
American Airlines flights from Seattle to Region of Ontario
Our best American Airlines deals on Seattle to Region of Ontario flight tickets
See travel insights to Ontario from
How to get the cheapest flight ticket from Seattle to Region of Ontario
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Region of Ontario?
The month of January is, on average, the cheapest month to fly to Region of Ontario from Seattle, with most prices found around $292. If you aren’t able to travel during the month of January, then book flights to Region of Ontario from Seattle during September instead. Flights to Region of Ontario in September, while not as cheap as those in January, still average around $408.
What is the cheapest day to depart on your flight to Region of Ontario?
According to our data, Wednesday is the cheapest day to fly to Region of Ontario from Seattle. The lowest ticket price found for a Wednesday departure recently was $445. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Seattle to Region of Ontario on a Sunday will generally be more expensive and average around $579. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Region of Ontario?
According to our data, the cheapest time of day to fly to Region of Ontario is in the afternoon. momondo users have found flights departing from Seattle to Region of Ontario in the afternoon for as low as $283. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive with an average ticket price of $536.
What is the cheapest Seattle/Tacoma Intl to Ontario flight route?
Fly from Seattle/Tacoma Intl to Toronto Pearson Intl for the best Seattle/Tacoma Intl - Ontario flight prices
How far in advance should I book a flight to Region of Ontario?
The ideal time to book your flight to Region of Ontario is 52 days in advance when prices tend to average $525. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Region of Ontario from Seattle for as low as $256 on momondo.
What cabin class options are available on Seattle/Tacoma Intl to Ontario flights?
There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
How many flights depart from Seattle to Region of Ontario on average per day?
The number of flights available between Seattle and Region of Ontario is 1 per day as of December 2024. The most frequent departure time is 7:00AM, with 100% of daily flights leaving at noon.
How many flights depart from Seattle to Region of Ontario on average per week?
11 flights are operational weekly from Seattle to Region of Ontario as of December 2024. The most popular departure day for this route is Wed, with 45% of flights per week taking off on this day.
Cheap Seattle to Region of Ontario flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Region of Ontario
Best Price Found | $99 |
|---|---|
Fastest flight time | 4h 35m |
Direct flights | Every day |
Airports in Region of Ontario | 5 airports |
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Ontario?
Prices for flights from Seattle/Tacoma Intl Airport to Ontario are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Ontario?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Ontario is 6 as of December 2024.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Ontario?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Ontario.
What documentation or ID do you need to fly to Ontario?
The travel and health documents you'll need for your trip to Ontario may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Seattle to Region of Ontario?
momondo data reveals that the most frequently booked plane model on the route from Seattle to Region of Ontario is Airbus A320-100/200, representing 33.43% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 22.05%, Airbus A220-300 at 7.93%, and Boeing 737-900 Passenger/BBJ3 (winglets) at 5.76%.
Best airlines flying from Seattle to Region of Ontario
Compare and see reviews for airlines that fly from Seattle to Region of Ontario with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $172 | Free Cancellation | Rating 7.4 9,059 reviews | |||
| PriceFrom $176 | Free Cancellation | Rating 7.0 8,382 reviews | |||
| PriceFrom $235 | Free Cancellation | Rating 7.2 2,818 reviews | |||
| PriceFrom $248 | Free Cancellation | Rating 8.0 9,552 reviews | |||
| PriceFrom $464 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $490 | Free Cancellation | Rating 8.0 8,604 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Seattle to Ontario?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Ontario. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Seattle to Ontario with flexible booking policies on momondo?
Yes. All flights to Ontario from Seattle on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Seattle to Ontario?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ontario from Seattle.
I’m not ready to book a flight from Seattle to Ontario right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Seattle to Ontario flights. All you need is a valid email address and we will do the rest; it is that quick and easy.