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$49+ Cheap flights from Ontario (ONT) to Washington

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/1. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SEA
Dec 24 — Dec 311
Tue 12/24
Tue 12/31
1 adult, Economy
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Cheap flight deals from Ontario to Washington

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Washington (USWA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 19, 2024.

Round-trip from

$93
(CheapOair)

One-way from

$49
(Cheapflightsfares)
From Ontario to Washington
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One-way flight from Ontario to Washington
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Find flight deals from Ontario to Washington

Cheapest flights from Ontario to Washington
Explore the most affordable flight options available from Ontario to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 19, 2024.

This Cheapflightsfares deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/306:03 pmONT - PDX
Nonstop2h 21mFrontier
Mon 1/66:59 pmPDX - ONT
Nonstop2h 20mFrontier
Deal found 12/19$124
This FlightHub deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/247:59 amONT - SEA
Nonstop3h 00mFrontier
Thu 1/26:52 pmSEA - ONT
Nonstop2h 39mFrontier
Deal found 12/18$146
This Travelocity deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/254:04 pmONT - PDX
Nonstop2h 21mMultiple Airlines
Mon 1/137:55 pmPDX - ONT
Nonstop2h 18mMultiple Airlines
Deal found 12/18$193
This United Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/241:57 pmONT - PDX
1 stop4h 45mUnited Airlines
Tue 1/71:40 pmPDX - ONT
1 stop4h 24mUnited Airlines
Deal found 12/17$201
This Delta deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/255:30 amONT - PDX
1 stop7h 09mDelta
Wed 1/15:10 amPDX - ONT
1 stop6h 58mDelta
Deal found 12/18$236
This Alaska Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2410:40 amONT - PDX
Nonstop2h 26mAlaska Airlines
Tue 1/76:05 amPDX - ONT
1 stop4h 44mAlaska Airlines
Deal found 12/17$246
This Trip.com deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/194:26 pmONT - SEA
Nonstop3h 00mMultiple Airlines
Fri 1/108:05 pmSEA - ONT
Nonstop2h 34mMultiple Airlines
Deal found 12/18$256
This Alaska Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/246:00 amONT - SEA
Nonstop2h 56mAlaska Airlines
Sun 1/54:59 pmSEA - ONT
Nonstop2h 38mAlaska Airlines
Deal found 12/17$267
This Delta deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/185:50 amONT - SEA
Nonstop3h 05mDelta
Mon 1/612:40 pmSEA - ONT
Nonstop2h 45mDelta
Deal found 12/18$315
This United Airlines deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/306:50 pmONT - SEA
1 stop5h 00mUnited Airlines
Fri 1/34:30 pmSEA - ONT
1 stop6h 30mUnited Airlines
Deal found 12/18$356
This Alaska Airlines deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/251:28 pmONT - BLI
1 stop4h 28mAlaska Airlines
Fri 1/106:10 pmBLI - ONT
1 stop4h 29mAlaska Airlines
Deal found 12/18$378
This Delta deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/185:35 pmONT - PSC
1 stop5h 51mDelta
Mon 1/65:43 pmPSC - ONT
1 stop4h 49mDelta
Deal found 12/18$444

Find flights from Ontario to Washington within your budget

Customize your flight search to find flights from Ontario to Washington that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 19, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Fri 1/10

8:04 am-10:25 am

Nonstop2h 21m

Portland

Sun 1/12

10:37 am-11:08 am

1 stop24h 31m

$93

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Thu 1/16

11:27 am-2:18 pm

Nonstop2h 51m

Seattle/Tacoma Intl

Sun 1/19

4:35 pm-7:12 pm

Nonstop2h 37m

$108

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Fri 1/10

8:04 am-10:25 am

Nonstop2h 21m

Portland

Sun 1/12

7:55 pm-10:13 pm

Nonstop2h 18m

$113

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Thu 1/16

11:27 am-2:18 pm

Nonstop2h 51m

Seattle/Tacoma Intl

Wed 1/22

8:00 am-10:38 am

Nonstop2h 38m

$128

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Sat 1/18

6:00 am-8:54 am

Nonstop2h 54m

Seattle/Tacoma Intl

Wed 1/22

8:00 am-10:38 am

Nonstop2h 38m

$137

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Fri 1/10

4:05 pm-7:00 pm

Nonstop2h 55m

Seattle/Tacoma Intl

Tue 1/14

12:40 pm-3:25 pm

Nonstop2h 45m

$147

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Tue 4/1

7:00 am-9:24 am

Nonstop2h 24m

Portland

Sat 4/5

9:41 pm-11:59 pm

Nonstop2h 18m

$151

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Sat 2/15

6:00 am-10:47 am

1 stop4h 47m

Portland

Wed 2/26

5:10 am-12:24 pm

1 stop7h 14m

$176

OntarioSpokane

ONT - GEG

ONTGEG

Ontario

Wed 1/8

5:10 pm-11:57 pm

1 stop6h 47m

Spokane

Tue 1/14

5:35 am-12:26 pm

1 stop6h 51m

$218

OntarioPullman

ONT - PUW

ONTPUW

Ontario

Thu 3/6

11:57 am-6:39 pm

1 stop6h 42m

Pullman Moscow Regional

Sat 3/15

1:50 pm-9:00 pm

1 stop7h 10m

$218

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 46 results
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Best time to book a flight from Ontario to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Ontario to Washington

Get recent, data-driven insights about flights from Ontario to Washington including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Ontario to State of Washington?

Currently, January is the cheapest month in which you can book a flight from Ontario to State of Washington (average of $238). Flying from Ontario to State of Washington in July is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ONT to WA?

Find hourly flight availability from Ontario to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 19, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to State of Washington as you normally would.

Weekly flight availability from Ontario to State of Washington

Explore weekly flight availability from Ontario to Washington. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 19, 2024.

The most flights from ONT to USWA are scheduled on a Thursday (20 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in Washington by month

Plan your trip to Washington by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in State of Washington ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.

Temperature in Washington by month

Plan your trip to Washington by taking into account the average temperature totals by month.

If weather is an important factor for your trip to State of Washington, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington. Reviews last updated December 19, 2024.
Get a feel of what it's like to fly with Delta, Alaska Airlines and Frontier from Ontario to Washington by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,836 reviews

Overall

8.1

Comfort

8.1

Food

7.2

Crew

8.7

Entertainment

7.7

Boarding

8.2

Reviews

1 / 10

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

Southwest
8.1
Very good
4,836 reviews
Southwest
8.1
Very good
4,836 reviews

Overall

8.1

Comfort

8.1

Food

7.2

Crew

8.7

Entertainment

7.7

Boarding

8.2

Reviews

1 / 10

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

Alaska Airlines
8.0
Very good
9,552 reviews
Southwest
8.1
Very good
4,836 reviews

Overall

8.1

Comfort

8.1

Food

7.2

Crew

8.7

Entertainment

7.7

Boarding

8.2

Reviews

1 / 10

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

Delta
8.0
Very good
8,600 reviews
Southwest
8.1
Very good
4,836 reviews

Overall

8.1

Comfort

8.1

Food

7.2

Crew

8.7

Entertainment

7.7

Boarding

8.2

Reviews

1 / 10

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

United Airlines
7.4
Good
9,048 reviews
Southwest
8.1
Very good
4,836 reviews

Overall

8.1

Comfort

8.1

Food

7.2

Crew

8.7

Entertainment

7.7

Boarding

8.2

Reviews

1 / 10

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,836 reviews

Overall

8.1

Comfort

8.1

Food

7.2

Crew

8.7

Entertainment

7.7

Boarding

8.2

Reviews

1 / 10

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Washington?

    Located just 3.1 mi from the city center, Ontario (ONT) is the airport most travelers will use when flying to Washington from Ontario.

  • How popular is this Ontario to State of Washington flight route?

    This flight path from Ontario to Washington was viewed by 170 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from Ontario to State of Washington one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $49. Users have also found prices from $69 and $72 on Delta and Alaska Airlines, respectively.

  • What are the most popular routes from Ontario to State of Washington?

    While some choose either Ontario - Portland or Ontario - Spokane, Ontario - Seattle/Tacoma Intl is the most popular route from Ontario to State of Washington.

  • What are the most reliable airlines from Ontario to State of Washington?

    Before booking your flight to State of Washington from Ontario, check out the most reliable airlines to get you to your destination on time: LATAM Airlines (94%), ITA Airways (94%), KLM( 94%).

  • What are the cheapest flights from Ontario to State of Washington?

    Looking at all options, your cheapest flight can be booked for $59. While the most popular route (Ontario - Seattle/Tacoma Intl) can be booked for $85 on average our data indicates $635 when flying from Ontario to State of Washington.

  • Can I find deals for flights from Ontario to Washington that include hotel bookings?

    Yes. In addition to deals on Ontario to Washington flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Washington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Washington.

  • Can I find deals for business class flights from Ontario to Washington?

    Yes. Cheapflights offers flight deals from Ontario to Washington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to State of Washington?

    Currently, January is the cheapest month in which you can book a flight from Ontario to State of Washington (average of $238). Flying from Ontario to State of Washington in July is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Ontario to Washington

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Top 6 airlines flying from Ontario to Washington

Discover the top 6 airlines that operate flights from Ontario to Washington. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$62Average$140FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$71Average$130FlexibilityNo cancel feeOn-time65%
DeltaCheapest$105Average$317FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$123Average$426FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$168Average$467FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$252Average$421FlexibilityNo cancel feeOn-time63%
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