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 time of day to fly from TYS to LWS?

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

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

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

How can I find direct flights from Knoxville to Lewiston?

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

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

Yes. Cheapflights offers flight deals from Knoxville 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.

$482+ Flights from Knoxville to Lewiston, ID

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Knoxville to Lewiston with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Knoxville to Lewiston

Round-trip from	$482 (Delta)

From Knoxville McGhee Tyson to Lewiston Nez Perce Rgnl

Search Deals

Find flight deals from Knoxville to Lewiston

Cheapest flights from Knoxville to Lewiston
Explore the most affordable flight options available from Knoxville to Lewiston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Sat 11/16:15 amTYS - LWS

2 stops10h 07mDelta

Tue 11/47:10 amLWS - TYS

2 stops12h 45mDelta

Deal found 7/28

$482

Best flights from Knoxville to Lewiston
Discover carefully curated flight deals from Knoxville to Lewiston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Sat 11/16:15 amTYS - LWS

2 stops10h 07mDelta

Tue 11/47:10 amLWS - TYS

2 stops12h 45mDelta

Deal found 7/28

$482

Last-minute flights from Knoxville to Lewiston
Discover last-minute flight deals from Knoxville to Lewiston. Data last updated July 29, 2025 and is based on user searches.

Mon 8/185:45 amTYS - LWS

2 stops10h 34mDelta

Fri 8/227:05 amLWS - TYS

2 stops13h 50mDelta

Deal found 7/28

$847

Fly from

Fly to

Route

Depart

Return

Price

KnoxvilleLewiston

TYS - LWS

TYSLWS

Knoxville McGhee Tyson

Sat 11/1

6:15 am-1:22 pm

2 stops10h 07m

Lewiston Nez Perce Rgnl

Tue 11/4

7:10 am-10:55 pm

2 stops12h 45m

$482

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Best time to book a flight from Knoxville to Lewiston

Have a flexible travel schedule? Discover the best time to fly to Lewiston from Knoxville 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 Knoxville to Lewiston

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

Currently, February is the cheapest month in which you can book a flight from Knoxville to Lewiston, Idaho (average of $278). Flying from Knoxville to Lewiston, Idaho in July is currently the most expensive (average of $527). 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

Get a feel of what it's like to fly with Delta from Knoxville to Lewiston by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,977 reviews

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Can I find deals for flights from Knoxville to Lewiston that include hotel bookings?
Yes. In addition to deals on Knoxville to Lewiston flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Knoxville to Lewiston?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Lewiston.
Can I find deals for business class flights from Knoxville to Lewiston?
Yes. Cheapflights offers flight deals from Knoxville 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 Knoxville to Lewiston, Idaho?
Currently, February is the cheapest month in which you can book a flight from Knoxville to Lewiston, Idaho (average of $278). Flying from Knoxville to Lewiston, Idaho in July is currently the most expensive (average of $527). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Knoxville to Lewiston

Other flights to Lewiston

Salt Lake City to Lewiston flights

Denver to Lewiston flights

Lewiston, Idaho to Seattle flights

Lewiston, Idaho to Salt Lake City flights

Lewiston, Idaho to Seattle flights

Lewiston, Idaho to Salt Lake City flights

Lewiston, Idaho to Denver flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$482+ Cheap flights from Knoxville to Lewiston, ID (TYS - 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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Knoxville to Lewiston with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Knoxville to Lewiston

Round-trip from

Find flight deals from Knoxville to Lewiston

Cheapest flights from Knoxville to LewistonExplore the most affordable flight options available from Knoxville to Lewiston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Explore the most affordable flight options available from Knoxville to Lewiston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Knoxville to Lewiston

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

Cheapflights Insights

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

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

Reviews of airlines servicing Lewiston

Get a feel of what it's like to fly with Delta from Knoxville to Lewiston by reading reviews from past customers. Users have also rated airlines 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 Knoxville 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 Knoxville to Lewiston that include hotel bookings?

How can I find direct flights from Knoxville to Lewiston?

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

What is the cheapest month to book a flight from Knoxville 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 Knoxville to Lewiston

See prices for flight routes from nearby airports that may be better suited for you.

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Knoxville to Lewiston
Explore the most affordable flight options available from Knoxville to Lewiston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.