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Cheap flights from Ontario to Lewiston from $368

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Lewiston departing on 6/13. 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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0 bags

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Find the cheapest flights from Ontario to Lewiston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
1:00 pm - 11:19 pm
ONT
-
LWS
10h 19m
2 stops
Delta Logo
12:18 pm - 4:30 pm
LWS
-
ONT
4h 12m
1 stop
$792Delta
Mon, Jul 6 - Fri, Jul 10
Delta Logo
1:00 pm - 11:19 pm
ONT
-
LWS
10h 19m
2 stops
Delta Logo
12:18 pm - 10:43 pm
LWS
-
ONT
10h 25m
2 stops
$797Delta
Mon, Jul 6 - Fri, Jul 10
Delta Logo
5:59 pm - 11:19 pm
ONT
-
LWS
5h 20m
1 stop
Delta Logo
12:18 pm - 4:30 pm
LWS
-
ONT
4h 12m
1 stop
$866Delta
Mon, Jul 6 - Fri, Jul 10

Delta flights from Ontario to Lewiston, Idaho

Our best Delta deals on Ontario to Lewiston, Idaho flight tickets
Delta
Jul 6
ONT1:00 pmOntario
10h 19m
2 stops
LWS11:19 pmLewiston Nez Perce Rgnl
Jul 10
LWS12:18 pmLewiston Nez Perce Rgnl
4h 12m
1 stop
ONT4:30 pmOntario
$792
Delta
Jul 6
ONT1:00 pmOntario
10h 19m
2 stops
LWS11:19 pmLewiston Nez Perce Rgnl
Jul 10
LWS12:18 pmLewiston Nez Perce Rgnl
10h 25m
2 stops
ONT10:43 pmOntario
$797
Delta
Jul 6
ONT5:59 pmOntario
5h 20m
1 stop
LWS11:19 pmLewiston Nez Perce Rgnl
Jul 10
LWS12:18 pmLewiston Nez Perce Rgnl
4h 12m
1 stop
ONT4:30 pmOntario
$866

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Lewiston, Idaho 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, momondo users made 832,500 searches. Data last updated May 12, 2026.
Use the filters below to find and compare flights from Ontario to Lewiston, Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioLewiston

ONT - LWS

ONTLWS

Ontario

Mon 7/6

1:00 pm-11:19 pm

2 stops10h 19m

Lewiston Nez Perce Rgnl

Fri 7/10

12:18 pm-4:30 pm

1 stop4h 12m

$792

OntarioLewiston

ONT - LWS

ONTLWS

Ontario

Mon 7/6

1:00 pm-11:19 pm

2 stops10h 19m

Lewiston Nez Perce Rgnl

Fri 7/10

12:18 pm-10:43 pm

2 stops10h 25m

$797
Quickest round-trip

OntarioLewiston

ONT - LWS

ONTLWS

Ontario

Mon 7/6

5:59 pm-11:19 pm

1 stop5h 20m

Lewiston Nez Perce Rgnl

Fri 7/10

12:18 pm-4:30 pm

1 stop4h 12m

$866
Cheapest one-way

OntarioLewiston

ONT - LWS

ONTLWS

Ontario

Sat 6/13

1:00 pm-11:19 pm

2 stops10h 19m

$368
Quickest one-way

OntarioLewiston

ONT - LWS

ONTLWS

Ontario

Sat 6/13

5:59 pm-11:19 pm

1 stop5h 20m

$564

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Lewiston from

How to get the cheapest flight ticket from Ontario to Lewiston, Idaho

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 airline that flies from Ontario to Lewiston Nez Perce Rgnl?

Delta is the most popular carrier operating from Ontario to Lewiston Nez Perce Rgnl

What airlines fly to Lewiston, Idaho?

Alaska Airlines, Delta and Allegiant Air are the top three most popular airlines that fly to Lewiston, Idaho from Ontario according to our data. Alaska Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Lewiston, Idaho. Keep in mind that there are 7 different airlines that fly to Lewiston, Idaho on a routine basis, so you have a few additional options to choose from.

When to book flights from Ontario to Lewiston, Idaho

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Lewiston, Idaho according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Lewiston, Idaho (ONT to LWS) flight deals and tips

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

Fastest flight time

5h 36m

Direct flights

None
The fastest flight from Ontario to Lewiston, Idaho takes 5h 36m
There are no direct flights from Ontario to Lewiston, Idaho. There are no popular flight routes from Ontario to Lewiston, Idaho.
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Frequently asked questions about flying from Ontario to Lewiston, Idaho

  • How far is Ontario to Lewiston Nez Perce Rgnl by plane?

    A flight from Ontario to Lewiston Nez Perce Rgnl will travel around 852.5 mi. Typically, this will take 5h 36m by plane in normal conditions.

  • When did momondo last update prices for flights from Ontario Airport to Lewiston Nez Perce Rgnl Airport?

    Prices for flights from Ontario Airport to Lewiston Nez Perce Rgnl Airport are updated daily.

  • How old do you have to be to fly from Ontario Airport to Lewiston Nez Perce Rgnl 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 Lewiston Nez Perce Rgnl Airport.

  • What documentation or ID do you need to fly to Lewiston Nez Perce Rgnl Airport?

    The necessary travel and health documents for your Lewiston Nez Perce Rgnl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking 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 Ontario to Lewiston?

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 Ontario to Lewiston for you.

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

momondo does allow users to show only those flights to Lewiston from Ontario which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Ontario to Lewiston flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Ontario to Lewiston now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Lewiston and let you know when they change.

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