Cheap flights from Seattle to Ontario from $54
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 4/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Below you can see the best fares for your round-trip flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Seattle to Ontario by changing tabs
Find the cheapest one-way flights from Seattle to Ontario
If you're looking for one-way flights from Seattle to Ontario, view some of our deals below provided by Alaska Airlines, American Airlines and Frontier
Search last-minute flights to Ontario from Seattle
Find and compare round-trip flight prices for your last-minute flight from Seattle to Ontario
Best airlines flying from Seattle to Ontario
Compare and see reviews for airlines that fly from Seattle to Ontario with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $49 | Free Cancellation | Rating 7.4 11,346 reviews | |||
| PriceFrom $58 | Free Cancellation | Rating 6.3 4,168 reviews | |||
| PriceFrom $75 | Free Cancellation | Rating 6.4 8,789 reviews | |||
| PriceFrom $78 | Free Cancellation | Rating 8.0 11,104 reviews | |||
| PriceFrom $84 | Free Cancellation | Rating 8.1 9,106 reviews | |||
| PriceFrom $256 | Free Cancellation | Rating 7.3 14,963 reviews |
Alaska Airlines Flights From Seattle to Ontario
Alaska Airlines flies from Seattle to Ontario around 21 times per week, with 9,106 momondo users rating the airline 8.1/10. The cheapest Alaska Airlines deal from Seattle to Ontario in the last 72 hours was $84 (round-trip), much lower than the average airfare cost of $226 for Alaska Airlines flights on this route.
Delta Flights From Seattle to Ontario
Delta (8.0/10 from 11,104 reviews) operates around 21 flights from Seattle to Ontario in any given week. The average Delta airfare for this route is around $218, with deals from around $78 rare but found on momondo. Referenced prices are for round-trip Seattle to Ontario flight searches in the last 72 hours.
Alaska Airlines flights from Seattle to Ontario
Our best Alaska Airlines deals on Seattle to Ontario flight tickets
Frontier flights from Seattle to Ontario
Our best Frontier deals on Seattle to Ontario flight tickets
How to get the cheapest flight ticket from Seattle to 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 from Seattle to Ontario?
September. The cheapest time of year to fly to Ontario from Seattle is September. Most expensive is November
What is the cheapest day to depart Seattle for Ontario?
Wednesday. The cheapest day of the week is typically Wednesday. The most expensive is typically Sunday
When is the cheapest time to fly from Seattle to Ontario?
At noon. Seattle to Ontario flights are approximately 17% more expensive in the afternoon than at noon
What is the cheapest airline that flies to Ontario from Seattle?
Frontier. Alaska Airlines, Delta, and Frontier are the most popular carriers operating from Seattle to Ontario
What is the cheapest Seattle to Ontario flight route?
Seattle/Tacoma Intl - Ontario. Fly from Seattle/Tacoma Intl to Ontario for the best Seattle - Ontario flight prices
How far in advance should you book Seattle to Ontario flights?
53 days before. The cheapest time to buy a flight from Seattle to Ontario is approximately 53 days to departure
How many flights depart from Seattle to Ontario on average per day?
As of April 2024, 13 flights take off from Seattle and land in Ontario each day. The most common flight departure time for this route is 6:00PM, with 47% of daily flights taking off in the evening.
How many flights depart from Seattle to Ontario on average per week?
The number of flights available between Seattle and Ontario is 95 per week as of April 2024. The most frequent departure day is Monday, with 17% of weekly flights leaving on this day.
Can stopping save me money on Seattle to Ontario flights?
No. A direct flight is the cheapest option for a flight between Seattle to Ontario.
Cheap Seattle to Ontario (SEA to ONT) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Ontario
Best Price Found | $54 |
|---|---|
Fastest flight time | 2h 32m |
Direct flights | Every day |
Airports in Ontario | 1 airport |
How far is Seattle/Tacoma Intl to Ontario by plane?
The distance between Seattle/Tacoma Intl and Ontario is about 966.6 mi. A reasonable flight in good conditions will take 2h 32m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Ontario Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Ontario Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Ontario Airport?
As of April 2024, there are 7 operators available to choose from for flights from Seattle/Tacoma Intl Airport to Ontario Airport.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Ontario Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents you'll need for your trip to Ontario Airport 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 Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
Why use momondo?
Why should I use momondo to find a flight deal from Seattle to Ontario?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Ontario for you.
Can I find flights from Seattle to Ontario with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Seattle to Ontario flights to just show those with flexible booking policies.
How can momondo help me find flights from Seattle to Ontario?
momondo helps you find the best flight between Seattle and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Seattle to Ontario right now. Can momondo alert me if prices change?
Price alerts on flights to Ontario from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.