What is the cheapest airline that flies from Ontario to Pasco Tri Cities?

Alaska Airlines and Delta are the most popular carriers operating from Ontario to Pasco Tri Cities

What airlines fly to Pasco?

Alaska Airlines, Delta and United Airlines are the top three most popular airlines that fly to Pasco from Ontario according to our data. Alaska Airlines is the first choice among our users, with 70% of people opting to fly with this airline when traveling to Pasco. Keep in mind that there are 5 different airlines that fly to Pasco on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Ontario Airport to Pasco Tri Cities Airport?

Prices for flights from Ontario Airport to Pasco Tri Cities Airport are updated daily.

How many operators does momondo search for flights from Ontario Airport to Pasco Tri Cities Airport?

There are 3 operators available for flights from Ontario Airport to Pasco Tri Cities Airport as of December 2025.

How old do you have to be to fly from Ontario Airport to Pasco Tri Cities Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Pasco Tri Cities Airport.

What documentation or ID do you need to fly to Pasco Tri Cities Airport?

The travel and health documents you'll need for your trip to Pasco Tri Cities 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 Pasco Tri Cities Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$108 Cheap Flights from Ontario to Pasco in 2025/26

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Find the cheapest flights from Ontario to Pasco

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

4:02 pm - 8:55 pm

ONT

PSC

4h 53m1 stop

8:25 am - 3:08 pm

PSC

ONT

6h 43m1 stop

$234Alaska Airlines

Tue, Mar 3 - Wed, Mar 4

7:56 pm - 9:03 am

ONT

PSC

37h 07m2 stops

8:27 am - 11:56 pm

PSC

ONT

15h 29m1 stop

$235Alaska Airlines

Mon, Jan 19 - Mon, Jan 26

4:02 pm - 8:55 pm

ONT

PSC

4h 53m1 stop

8:25 am - 7:14 pm

PSC

ONT

10h 49m2 stops

$245Alaska Airlines

Tue, Mar 3 - Wed, Mar 4

4:02 pm - 8:55 pm

ONT

PSC

4h 53m1 stop

8:25 am - 10:44 pm

PSC

ONT

14h 19m1 stop

$252Alaska Airlines

Tue, Mar 3 - Wed, Mar 4

12:02 pm - 8:55 pm

ONT

PSC

8h 53m1 stop

7:04 pm - 11:32 pm

PSC

ONT

4h 28m1 stop

$258Alaska Airlines

Tue, Feb 17 - Thu, Feb 19

4:02 pm - 8:55 pm

ONT

PSC

4h 53m1 stop

8:25 am - 7:14 pm

PSC

ONT

10h 49m2 stops

$267Alaska Airlines

Tue, Mar 3 - Wed, Mar 4

7:56 pm - 9:03 am

ONT

PSC

37h 07m2 stops

6:19 pm - 7:16 pm

PSC

ONT

24h 57m2 stops

$283Alaska Airlines

Mon, Jan 19 - Mon, Jan 26

6:00 am - 11:37 am

ONT

PSC

5h 37m1 stop

3:18 pm - 10:53 pm

PSC

ONT

7h 35m1 stop

$287United Airlines

Sun, Jan 11 - Thu, Jan 15

6:14 am - 8:55 pm

ONT

PSC

14h 41m1 stop

7:04 pm - 6:57 pm

PSC

ONT

23h 53m2 stops

$311Alaska Airlines

Tue, Feb 17 - Thu, Feb 19

7:00 am - 8:55 pm

ONT

PSC

13h 55m2 stops

8:25 am - 7:14 pm

PSC

ONT

10h 49m2 stops

$325Alaska Airlines

Tue, Mar 3 - Wed, Mar 4

Alaska Airlines flights from Ontario to Pasco

Our best Alaska Airlines deals on Ontario to Pasco flight tickets

Alaska Airlines

Mar 3

ONT4:02 pmOntario

4h 53m

1 stop

PSC8:55 pmPasco Tri Cities

Mar 4

PSC8:25 amPasco Tri Cities

6h 43m

1 stop

ONT3:08 pmOntario

$234

Find similar

Alaska Airlines

Jan 19

ONT7:56 pmOntario

37h 07m

2 stops

PSC9:03 amPasco Tri Cities

Jan 26

PSC8:27 amPasco Tri Cities

15h 29m

1 stop

ONT11:56 pmOntario

$235

Find similar

Alaska Airlines

Mar 3

ONT4:02 pmOntario

4h 53m

1 stop

PSC8:55 pmPasco Tri Cities

Mar 4

PSC8:25 amPasco Tri Cities

10h 49m

2 stops

ONT7:14 pmOntario

$245

Find similar

United Airlines flights from Ontario to Pasco

Our best United Airlines deals on Ontario to Pasco flight tickets

United Airlines

Jan 11

ONT6:00 amOntario

5h 37m

1 stop

PSC11:37 amPasco Tri Cities

Jan 15

PSC3:18 pmPasco Tri Cities

7h 35m

1 stop

ONT10:53 pmOntario

$287

Find similar

United Airlines

Dec 28

ONT6:00 amOntario

5h 43m

1 stop

PSC11:43 amPasco Tri Cities

Jan 10

PSC6:05 amPasco Tri Cities

6h 12m

1 stop

ONT12:17 pmOntario

$396

Find similar

United Airlines

Dec 26

ONT6:00 amOntario

5h 43m

1 stop

PSC11:43 amPasco Tri Cities

Dec 30

PSC6:02 amPasco Tri Cities

16h 39m

1 stop

ONT10:41 pmOntario

$644

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioPasco

ONT - PSC

ONTPSC

Ontario

Tue 3/3

4:02 pm-8:55 pm

1 stop4h 53m

Pasco Tri Cities

Wed 3/4

8:25 am-3:08 pm

1 stop6h 43m

$234

OntarioPasco

ONT - PSC

ONTPSC

Ontario

Mon 1/19

7:56 pm-9:03 am

2 stops37h 07m

Pasco Tri Cities

Mon 1/26

8:27 am-11:56 pm

1 stop15h 29m

$235

OntarioPasco

ONT - PSC

ONTPSC

Ontario

Tue 3/3

4:02 pm-8:55 pm

1 stop4h 53m

Pasco Tri Cities

Wed 3/4

8:25 am-7:14 pm

2 stops10h 49m

$245

OntarioPasco

ONT - PSC

ONTPSC

Ontario

Tue 3/3

4:02 pm-8:55 pm

1 stop4h 53m

Pasco Tri Cities

Wed 3/4

8:25 am-10:44 pm

1 stop14h 19m

$252

OntarioPasco

ONT - PSC

ONTPSC

Ontario

Tue 2/17

12:02 pm-8:55 pm

1 stop8h 53m

Pasco Tri Cities

Thu 2/19

7:04 pm-11:32 pm

1 stop4h 28m

$258

OntarioPasco

ONT - PSC

ONTPSC

Ontario

Tue 3/3

4:02 pm-8:55 pm

1 stop4h 53m

Pasco Tri Cities

Wed 3/4

8:25 am-7:14 pm

2 stops10h 49m

$267

OntarioPasco

ONT - PSC

ONTPSC

Ontario

Mon 1/19

7:56 pm-9:03 am

2 stops37h 07m

Pasco Tri Cities

Mon 1/26

6:19 pm-7:16 pm

2 stops24h 57m

$283

OntarioPasco

ONT - PSC

ONTPSC

Ontario

Sun 1/11

6:00 am-11:37 am

1 stop5h 37m

Pasco Tri Cities

Thu 1/15

3:18 pm-10:53 pm

1 stop7h 35m

$287

OntarioPasco

ONT - PSC

ONTPSC

Ontario

Tue 2/17

6:14 am-8:55 pm

1 stop14h 41m

Pasco Tri Cities

Thu 2/19

7:04 pm-6:57 pm

2 stops23h 53m

$311

OntarioPasco

ONT - PSC

ONTPSC

Ontario

Tue 3/3

7:00 am-8:55 pm

2 stops13h 55m

Pasco Tri Cities

Wed 3/4

8:25 am-7:14 pm

2 stops10h 49m

$325

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Pasco

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

Prices

Airlines

What is the cheapest month to fly to Pasco?

The month of May is, on average, the cheapest month to fly to Pasco from Ontario, with most prices found around $218. The month of March is another great option to travel to Pasco, with average flight prices from Ontario averaging around $226.

What is the cheapest day to depart on your flight to Pasco?

The cheapest day to depart from Ontario to Pasco is on a Wednesday. Travelers who choose to depart for Pasco on a Wednesday will often find tickets for as low as $258. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Pasco on Sunday is $327.

What is the cheapest time of day to depart on your flight to Pasco?

The cheapest time of day to fly to Pasco is in the evening when flights can be purchased for as low as $267. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $472 on average. Flights to Pasco from Ontario in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How have Ontario to Pasco flight prices changed over time?

As of December 2025, prices for Ontario to Pasco flights are approximately 63% cheaper when compared to flights at the same time last year.

When to book flights from Ontario to Pasco

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Pasco according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Ontario to Pasco (ONT to PSC) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Pasco

Fastest flight time	4h 58m
Direct flights	None

The fastest flight from Ontario to Pasco takes 4h 58m

There are no direct flights from Ontario to Pasco. There are no popular flight routes from Ontario to Pasco.

Search flight deals

How far is Ontario to Pasco Tri Cities by plane?
The straight-line distance from Ontario to Pasco Tri Cities is 844.1 mi. 4h 58m is a normal flight duration for this route.
When did momondo last update prices for flights from Ontario Airport to Pasco Tri Cities Airport?
Prices for flights from Ontario Airport to Pasco Tri Cities Airport are updated daily.
How many operators does momondo search for flights from Ontario Airport to Pasco Tri Cities Airport?
There are 3 operators available for flights from Ontario Airport to Pasco Tri Cities Airport as of December 2025.
How old do you have to be to fly from Ontario Airport to Pasco Tri Cities Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Pasco Tri Cities Airport.
What documentation or ID do you need to fly to Pasco Tri Cities Airport?
The travel and health documents you'll need for your trip to Pasco Tri Cities 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 Pasco Tri Cities Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Ontario to Pasco?
momondo data reveals that the most frequently booked airline on the route from Ontario to Pasco is Delta, representing 46% of all bookings. The subsequent popular airlines are Alaska Airlines at 37% and United Airlines at 17%.

Best airlines flying from Ontario to Pasco

Compare and see reviews for airlines that fly from Ontario to Pasco with momondo

Airline	Rating	Free Cancellation	Price
Alaska Airlines	PriceFrom $163	Free Cancellation	Rating 8.0 11,504 reviews	Search Alaska Airlines flights
Delta	PriceFrom $200	Free Cancellation	Rating 7.9 8,013 reviews	Search Delta flights
United Airlines	PriceFrom $272	Free Cancellation	Rating 7.4 9,102 reviews	Search United Airlines flights

Kennewick

Richland

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Pasco?

It is quick and easy to find Ontario to Pasco flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Pasco that suits you.

Can I find flights from Ontario to Pasco with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Pasco from Ontario with this policy.

How can momondo help me find flights from Ontario to Pasco?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Pasco.

I’m not ready to book a flight from Ontario to Pasco right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Pasco, momondo offers a useful price alert feature which will track prices for flights to Pasco from Ontario and alert you when they change.