Cheap flights from Ontario (ONT) to Washington from $51

This is the cheapest one-way flight price, found on 3/29. Prices may vary by date and flight preferences.
ONT — SEA
Apr 4 — Apr 111

Cheap flights from Ontario to Washington in March, April 2023

The best prices found for ONT to Washington flights for March, April

Ontario to Washington 2023 flight deals

Cheap flights to Washington from Ontario found for this year

Cheap Frontier flights from Ontario to Washington

Cheap Delta flights from Ontario to Washington

Non-stop flights to Washington from Ontario

Save time with Ontario to Washington direct flight deals

Last minute flights from Ontario to Washington

Late deals on return flights to Washington from Ontario, departing today and this week

One-way flights to Washington from Ontario

The cheapest one-way flights from Ontario to Washington

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Fly from

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Budget

$106 - $157

Route

Depart

Return

Price

OntarioSeattle/Tacoma Intl

ONT - SEA

ONTSEA

Ontario

2023-05-03

1 stop8h 48m

Seattle/Tacoma Intl

2023-05-10

1 stop9h 59m

OntarioSeattle/Tacoma Intl

ONT - SEA

ONTSEA

Ontario

2023-04-26

1 stop8h 48m

Seattle/Tacoma Intl

2023-05-03

1 stop9h 59m

OntarioSeattle/Tacoma Intl

ONT - SEA

ONTSEA

Ontario

2023-04-20

1 stop10h 25m

Seattle/Tacoma Intl

2023-04-25

1 stop9h 39m

OntarioSeattle/Tacoma Intl

ONT - SEA

ONTSEA

Ontario

2023-04-26

Nonstop2h 46m

Seattle/Tacoma Intl

2023-04-30

1 stop9h 34m

OntarioSeattle/Tacoma Intl

ONT - SEA

ONTSEA

Ontario

2023-04-12

1 stop9h 42m

Seattle/Tacoma Intl

2023-04-15

1 stop9h 26m

OntarioSeattle/Tacoma Intl

ONT - SEA

ONTSEA

Ontario

2023-04-10

1 stop12h 54m

Seattle/Tacoma Intl

2023-04-17

1 stop9h 55m

OntarioSeattle/Tacoma Intl

ONT - SEA

ONTSEA

Ontario

2023-05-09

Nonstop2h 55m

Seattle/Tacoma Intl

2023-05-16

Nonstop2h 35m

OntarioSeattle/Tacoma Intl

ONT - SEA

ONTSEA

Ontario

2023-04-26

Nonstop2h 37m

Seattle/Tacoma Intl

2023-04-28

Nonstop2h 31m

OntarioSeattle/Tacoma Intl

ONT - SEA

ONTSEA

Ontario

2023-05-02

1 stop6h 52m

Seattle/Tacoma Intl

2023-05-03

1 stop7h 54m

Flights are sorted by cheapest first

Deals found on 3/29

Reviews of Airlines Servicing Washington

Alaska Airlines
8.0
Very good
1,369 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.3

Entertainment

7.1

Food

7.2

Reviews

1 / 10

People working on plane were terrific My business class seat was very uncomfortable. Blankets and pillows were not available. Food was barely OK

Alaska Airlines
8.0
Very good
1,369 reviews
Alaska Airlines
8.0
Very good
1,369 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.3

Entertainment

7.1

Food

7.2

Reviews

1 / 10

People working on plane were terrific My business class seat was very uncomfortable. Blankets and pillows were not available. Food was barely OK

Delta
8.0
Very good
2,335 reviews
Alaska Airlines
8.0
Very good
1,369 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.3

Entertainment

7.1

Food

7.2

Reviews

1 / 10

People working on plane were terrific My business class seat was very uncomfortable. Blankets and pillows were not available. Food was barely OK

United Airlines
7.6
Good
1,427 reviews
Alaska Airlines
8.0
Very good
1,369 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.3

Entertainment

7.1

Food

7.2

Reviews

1 / 10

People working on plane were terrific My business class seat was very uncomfortable. Blankets and pillows were not available. Food was barely OK

American Airlines
7.4
Good
1,805 reviews
Alaska Airlines
8.0
Very good
1,369 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.3

Entertainment

7.1

Food

7.2

Reviews

1 / 10

People working on plane were terrific My business class seat was very uncomfortable. Blankets and pillows were not available. Food was barely OK

Frontier
6.1
Okay
544 reviews
Alaska Airlines
8.0
Very good
1,369 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.3

Entertainment

7.1

Food

7.2

Reviews

1 / 10

People working on plane were terrific My business class seat was very uncomfortable. Blankets and pillows were not available. Food was barely OK

Related info for your journey

Useful info, stats and facts about Ontario to Washington flights.

Destination points for flights from Ontario to Washington

Select to see more specific information for flights from Ontario to all places in Washington

Top 7 airlines flying from Ontario to Washington

The chart below displays the airlines Cheapflights users traveling from Ontario to Washington choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Spirit AirlinesCheapest$91Average$339FlexibilityNo cancel feeOn-time65%COVID-19 safety
Search Spirit Airlines flights
Allegiant AirCheapest$95Average$172FlexibilityNo cancel feeOn-time88%COVID-19 safety
Search Allegiant Air flights
Alaska AirlinesCheapest$108Average$375FlexibilityNo cancel feeOn-time75%COVID-19 safety
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DeltaCheapest$109Average$372FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
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FrontierCheapest$115Average$205FlexibilityNo cancel feeOn-time62%COVID-19 safety
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United AirlinesCheapest$188Average$621FlexibilityNo cancel feeOn-time69%COVID-19 safety
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American AirlinesCheapest$198Average$386FlexibilityNo cancel feeOn-time71%COVID-19 safety
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Hourly flight availability from Ontario to Washington

See what time of day planes typically take off from Ontario to Washington
17%of flight departuresEarly morningMidnight to 6 am
56%of flight departuresMorning6 am to noon
14%of flight departuresAfternoonNoon to 6 pm
13%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM
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