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

A quick flight from Lewiston, Idaho to Ontario can take about 5h 30m. Delta provides one of the quickest options available for as low as $632. 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.

$632+ Cheap Flights from Lewiston, ID to Ontario

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Cheap flight deals from Lewiston to Ontario

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Cheapest flights from Lewiston to Ontario
Explore the most affordable flight options available from Lewiston to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2026.

Sat 8/299:23 am

LWS

ONT

1 stop5h 30m

Delta

Sun 8/306:00 am

ONT

LWS

1 stop5h 43m

Delta

Deal found 7/27

$632

Find flight deals from Lewiston to Ontario

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$632 (Delta)

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

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From Lewiston Nez Perce Rgnl to Ontario

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Price

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Quickest round-trip

LewistonOntario

LWS - ONT

LWSONT

Lewiston Nez Perce Rgnl

Sat 8/29

9:23 am-2:53 pm

1 stop5h 30m

Ontario

Sun 8/30

6:00 am-11:43 am

1 stop5h 43m

$632

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Sorted by cheapest first

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 5h 30m. Delta provides one of the quickest options available for as low as $632. 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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$632+ 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 8/29. 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

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Cheap flight deals from Lewiston to Ontario

Cheapest flights from Lewiston to OntarioExplore the most affordable flight options available from Lewiston to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2026.

Explore the most affordable flight options available from Lewiston to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2026.

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 July 28, 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 July 28, 2026.

Last-minute flights from Lewiston to OntarioDiscover last-minute flight deals from Lewiston to Ontario. Data last updated July 28, 2026 and is based on user searches.

Discover last-minute flight deals from Lewiston to Ontario. Data last updated July 28, 2026 and is based on user searches.

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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?

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Alternative routes for Lewiston to Ontario

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Cheapest flights from Lewiston to Ontario
Explore the most affordable flight options available from Lewiston to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2026.

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 July 28, 2026.

Last-minute flights from Lewiston to Ontario
Discover last-minute flight deals from Lewiston to Ontario. Data last updated July 28, 2026 and is based on user searches.