How does KAYAK find such low prices on flights from Washington to Ontario?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Ontario. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Ontario?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Washington is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Washington to Ontario?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Washington with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Ontario?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$38 CHEAP FLIGHTS from Washington to Ontario

ONT

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

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Cheap Flights from Washington to Ontario

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Washington to Ontario

KAYAK's recommended round-trip deals from the most popular airlines that fly from Washington to Ontario.

Discover the best prices for you by selecting your travel dates on KAYAK.

12:17 pm - 2:40 pmPDX-ONT

2h 23mnonstop

3:35 pm - 5:58 pmONT-PDX

2h 23mnonstop

$76Frontier

Find Deal

Sat, Aug 9 - Sat, Aug 16

12:18 pm - 2:38 pmPDX-ONT

2h 20mnonstop

3:33 pm - 5:58 pmONT-PDX

2h 25mnonstop

$77Frontier

Find Deal

Sat, Jun 21 - Sat, Jun 28

8:15 pm - 10:46 pmSEA-ONT

2h 31mnonstop

10:03 am - 1:03 pmONT-SEA

3h 00mnonstop

$128

Find Deal

Wed, May 21 - Mon, May 26

9:41 pm - 11:57 pmPDX-ONT

2h 16mnonstop

2:19 pm - 4:50 pmONT-PDX

2h 31mnonstop

$132

Find Deal

Tue, May 20 - Thu, May 22

8:26 am - 10:57 amSEA-ONT

2h 31mnonstop

4:45 pm - 7:25 pmONT-SEA

2h 40mnonstop

$137Alaska Airlines

Find Deal

Sat, May 31 - Sat, May 31

3:53 pm - 6:25 pmSEA-ONT

2h 32mnonstop

7:20 pm - 10:00 pmONT-SEA

2h 40mnonstop

$147Alaska Airlines

Find Deal

Tue, May 20 - Thu, May 29

11:30 am - 2:15 pmSEA-ONT

2h 45mnonstop

6:00 am - 8:55 amONT-SEA

2h 55mnonstop

$167Delta

Find Deal

Mon, May 19 - Wed, May 21

5:35 am - 11:04 amPDX-ONT

5h 29m1 stop

11:44 am - 4:59 pmONT-PDX

5h 15m1 stop

$177Delta

Find Deal

Wed, May 21 - Tue, May 27

7:20 am - 12:14 pmSEA-ONT

4h 54m1 stop

6:41 pm - 12:59 amONT-SEA

6h 18m1 stop

$177United Airlines

Find Deal

Fri, May 30 - Sat, May 31

5:30 am - 12:14 pmPDX-ONT

6h 44m1 stop

6:00 am - 12:22 pmONT-PDX

6h 22m1 stop

$243United Airlines

Find Deal

Sun, Jun 1 - Wed, Jun 4

Useful Info

Low season	February
High season	May
Cheapest flight	$38

Best time to beat the crowds but there is an average 2% increase in price.

Most popular time to fly and prices are also 8% lower on average.

Flight from Portland to Ontario

ROTKEOFlew with Alaska AirlinesSEA-ONTDec 2024

Alaska Airlines has always been great to fly in and out of Seattle.

Verified travelerFlew with Alaska AirlinesSEA-ONTOct 2024

SeaTac lets you make an appointment to get through security. SpotSaver. No cost. Online.

How does KAYAK find such low prices on flights from Washington to Ontario?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Ontario.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Ontario?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Washington is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Washington to Ontario?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Washington with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Ontario?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Ontario

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on the airport you'll fly into in Ontario

Ontario (ONT)

ONT

$38 Find Cheap Flights from Washington to Ontario

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

Cheap Flights from Washington to Ontario

Recent round-trip flight deals from Washington to Ontario

Recent one-way flight deals from Washington to Ontario

Recent last minute flight deals from Washington to Ontario

Recent direct flight deals from Washington to Ontario

Good to know

Flights from Washington to Ontario: the best tips from KAYAK users

FAQs for booking flights from Washington to Ontario

How does KAYAK find such low prices on flights from Washington to Ontario?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Ontario.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Ontario?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Washington is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Washington to Ontario?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Washington with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Ontario?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario

Cabin class types available on flights to Washington

Complete your trip to Ontario with a hotel stay or car rental

Find direct flights for Ontario

Flights to other popular destinations

Flights from domestic origins to Ontario

Choose which airport to fly into in Ontario

Find deals for your return flight