How long is the flight from Lewiston, Idaho to Ontario?

A quick flight from Lewiston, Idaho to Ontario can take about 10h 13m. Delta provides one of the quickest options available for as low as $471. There are 851 mi between Lewiston, Idaho and Ontario.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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

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

Most accurate provider : When it comes to deals on Lewiston, Idaho-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Lewiston, Idaho-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Lewiston, Idaho-Ontario flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Lewiston, Idaho-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Lewiston, Idaho-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

How can I find direct flights from Lewiston to Ontario?

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

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

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

$471+ Cheap Flights from Lewiston, ID to Ontario

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Cheap flight deals from Lewiston to Ontario

Best

Best flights from Lewiston to Ontario
Discover carefully curated flight deals from Lewiston to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.

Sat 2/2712:30 pm -

2 stops10h 13m

Fri 3/56:00 am -

1 stop5h 46m

Deal found 10/27

$471

Sun 2/287:00 am -

1 stop6h 57m

Fri 3/53:30 pm -

1 stop7h 19m

Deal found 10/27

$519

Find flight deals from Lewiston to Ontario

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$465 (Delta)

Provider with most accurate pricing for Lewiston Nez Perce Rgnl-Ontario flight deals.

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Provider most trusted by Cheapflights users for Lewiston Nez Perce Rgnl-Ontario flights.

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From Lewiston Nez Perce Rgnl to Ontario

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Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LewistonOntario

LWS Lewiston Nez Perce Rgnl - ONT Ontario

LWSONT

Lewiston Nez Perce Rgnl

Sat 2/27

12:30 pm-10:43 pm

2 stops10h 13m

Ontario

Fri 3/5

6:00 am-11:46 am

1 stop5h 46m

$471

Quickest round-trip

LewistonOntario

LWS Lewiston Nez Perce Rgnl - ONT Ontario

LWSONT

Lewiston Nez Perce Rgnl

Sun 2/28

7:00 am-1:57 pm

1 stop6h 57m

Ontario

Fri 3/5

3:30 pm-10:49 pm

1 stop7h 19m

$519

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Sorted by cheapest first

Compare providers for flights from Lewiston to Ontario

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Lewiston to Ontario in October.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy2 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Lewiston, Idaho-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Lewiston, Idaho-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Lewiston, Idaho-Ontario flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Lewiston, Idaho-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Lewiston, Idaho-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Lewiston to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Lewiston with our price prediction graph.

LWS-ONT

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.

Related info for your journey

How long is the flight from Lewiston, Idaho to Ontario?
A quick flight from Lewiston, Idaho to Ontario can take about 10h 13m. Delta provides one of the quickest options available for as low as $471. There are 851 mi between Lewiston, Idaho and Ontario.
Can I find deals for flights from Lewiston to Ontario that include hotel bookings?
Yes. In addition to deals on Lewiston to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Lewiston to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Lewiston to Ontario.
Can I find deals for business class flights from Lewiston to Ontario?
Yes. Cheapflights offers flight deals from Lewiston to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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$471+ Cheap flights from Lewiston, ID to Ontario (LWS - ONT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/27. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Lewiston to Ontario with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Lewiston to Ontario

Best flights from Lewiston to OntarioDiscover carefully curated flight deals from Lewiston to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.

Discover carefully curated flight deals from Lewiston to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.

Find flight deals from Lewiston to Ontario

Most accurate provider

Most trusted provider

Round-trip from

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Use the filters below to find and compare flights from Lewiston to Ontario that are best for you.

Compare providers for flights from Lewiston to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Lewiston to Ontario in October.

Best time to book a flight from Lewiston to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Lewiston with our price prediction graph.

Related info for your journey

How long is the flight from Lewiston, Idaho to Ontario?

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

How can I find direct flights from Lewiston to Ontario?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Lewiston to Ontario

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Complete your trip

Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Lewiston to Ontario by cabin class

Find flights from Lewiston to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Ontario

Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 30, 2026.

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Best flights from Lewiston to Ontario
Discover carefully curated flight deals from Lewiston to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.