What is the cheapest day to fly from Ontario to Lewiston, Idaho?

Travelers seeking maximum savings on their Ontario to Lewiston, Idaho flight should consider departing on Saturday mornings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Lewiston, Idaho ranges from 0.3 - 1.7 inches per month. June is typically the wettest month, when rainfall can reach 1.7 in. August is typically the driest time to visit Lewiston, Idaho when rainfall is around 0.3 in.

If weather is an important factor for your trip to Lewiston, Idaho, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

What is the cheapest day to fly round-trip from Ontario to Lewiston, Idaho?

Departing on a Thursday is a good option for securing a great price. You can expect to save up to 59% when planning your travel around this day of the week.

What is the cheapest month to fly from Ontario to Lewiston, Idaho?

Our data shows that January tends to be the cheapest month to fly to Lewiston, Idaho from Ontario. Users have commonly found prices around $492 for the month, but tickets can be as low as $238. Due to multiple factors, prepare for potentially higher prices in February.

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

It’s typically best to fly out from Ontario to Lewiston, Idaho in the afternoon. Doing so could potentially save you 36% on the flight price compared to flying at noon, which is usually more expensive.

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

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

How can I find direct flights from Ontario to Lewiston?

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

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

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

$683+ Flights from Ontario to Lewiston, ID

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Cheap flight deals from Ontario to Lewiston

Round-trip from	$683 (Delta)
Popular in	February
Cheapest in	January
Average price	$350

From Ontario to Lewiston Nez Perce Rgnl

Search Deals

Highest demand for flights based on searches. 19% potential increase in price ($117 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease ($37 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

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Find flight deals from Ontario to Lewiston

Cheapest flights from Ontario to Lewiston
Explore the most affordable flight options available from Ontario to Lewiston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Wed 8/136:05 amONT - LWS

1 stop7h 14mDelta

Sun 8/172:00 pmLWS - ONT

2 stops8h 42mDelta

Deal found 7/28

$683

Best flights from Ontario to Lewiston
Discover carefully curated flight deals from Ontario to Lewiston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 30, 2025.

Wed 8/136:05 amONT - LWS

1 stop7h 14mDelta

Sun 8/172:00 pmLWS - ONT

2 stops8h 42mDelta

Deal found 7/28

$683

Last-minute flights from Ontario to Lewiston
Discover last-minute flight deals from Ontario to Lewiston. Data last updated July 30, 2025 and is based on user searches.

Wed 8/136:05 amONT - LWS

1 stop7h 14mDelta

Sun 8/172:00 pmLWS - ONT

2 stops8h 42mDelta

Deal found 7/28

$683

Fly from

Fly to

Route

Depart

Return

Price

OntarioLewiston

ONT - LWS

ONTLWS

Ontario

Wed 8/13

6:05 am-1:19 pm

1 stop7h 14m

Lewiston Nez Perce Rgnl

Sun 8/17

2:00 pm-10:42 pm

2 stops8h 42m

$683

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Best time to book a flight from Ontario to Lewiston

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

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.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Lewiston

What is the cheapest month to book a flight from Ontario to Lewiston, Idaho?

Currently, February is the cheapest month in which you can book a flight from Ontario to Lewiston, Idaho (average of $278). Flying from Ontario to Lewiston, Idaho in May is currently the most expensive (average of $526). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Lewiston

Read reviews from past customers who have flown Delta from Ontario to Lewiston. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,980 reviews

Reviews

1 / 20

10.0

Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Delta

8.0

Very good

7,980 reviews

Delta

8.0

Very good

7,980 reviews

Reviews

1 / 20

10.0

Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Related info for your journey

Can I find deals for flights from Ontario to Lewiston that include hotel bookings?
Yes. In addition to deals on Ontario to Lewiston flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Lewiston?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Lewiston.
Can I find deals for business class flights from Ontario to Lewiston?
Yes. Cheapflights offers flight deals from Ontario to Lewiston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Ontario to Lewiston, Idaho?
Currently, February is the cheapest month in which you can book a flight from Ontario to Lewiston, Idaho (average of $278). Flying from Ontario to Lewiston, Idaho in May is currently the most expensive (average of $526). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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$683+ Cheap flights from Ontario to Lewiston, ID (ONT - LWS)

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 8/13. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Lewiston with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Ontario to Lewiston

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Ontario to Lewiston

Cheapest flights from Ontario to LewistonExplore the most affordable flight options available from Ontario to Lewiston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Explore the most affordable flight options available from Ontario to Lewiston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Ontario to Lewiston

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

Cheapflights Insights

Everything you need to know about your flight from Ontario to Lewiston

What is the cheapest month to book a flight from Ontario to Lewiston, Idaho?

Reviews of airlines servicing Lewiston

Read reviews from past customers who have flown Delta from Ontario to Lewiston. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Lewiston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

How can I find direct flights from Ontario to Lewiston?

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

What is the cheapest month to book a flight from Ontario to Lewiston, Idaho?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Lewiston

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Cheapest flights from Ontario to Lewiston
Explore the most affordable flight options available from Ontario to Lewiston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.