$256+ 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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
LWS — ONT
Oct 15 — Oct 221
Round-trip
1 adult, Economy
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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
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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 September 15, 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 September 15, 2026.
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/269:16 am -
1 stop8h 03m
Mon 9/286:00 pm -
1 stop5h 08m
Deal found 9/11![Delta logo]()
$546
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2312:17 pm -
2 stops10h 20m
Thu 12/241:15 pm -
2 stops7h 49m
Deal found 9/11![Delta logo]()
$908
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 September 15, 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 September 15, 2026.
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/312:30 pm -
2 stops10h 13m
Mon 3/85:47 pm -
1 stop5h 02m
Deal found 9/10![Delta logo]()
$429
This Delta deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/26:25 am -
1 stop7h 32m
Sun 3/76:00 am -
1 stop5h 46m
Deal found 9/12![Delta logo]()
$456
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/312:30 pm -
2 stops10h 13m
Sun 3/76:00 am -
1 stop5h 46m
Deal found 9/11![Delta logo]()
$462
This Delta deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/16:25 am -
1 stop7h 32m
Sat 3/66:00 am -
1 stop5h 46m
Deal found 9/12![Delta logo]()
$466
This Delta deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/26:25 am -
1 stop7h 32m
Mon 3/85:47 pm -
1 stop5h 02m
Deal found 9/12![Delta logo]()
$496
This Delta deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/286:25 am -
1 stop7h 32m
Sun 3/76:00 am -
1 stop5h 46m
Deal found 9/12![Delta logo]()
$506
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/2812:30 pm -
2 stops10h 13m
Sat 3/66:00 am -
1 stop5h 46m
Deal found 9/14![Delta logo]()
$543
Last-minute flights from Lewiston to OntarioDiscover last-minute flight deals from Lewiston to Ontario. Data last updated September 15, 2026 and is based on user searches.
Discover last-minute flight deals from Lewiston to Ontario. Data last updated September 15, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/269:16 am -
1 stop8h 03m
Mon 9/286:00 pm -
1 stop5h 08m
Deal found 9/11![Delta logo]()
$546
One-way flights from Lewiston to OntarioSearch for one-way flight options from Lewiston to Ontario. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
Search for one-way flight options from Lewiston to Ontario. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
This Delta deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:15 am -
1 stop7h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Delta logo]()
$256
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/212:30 pm -
2 stops10h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Delta logo]()
$262
This Delta deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/99:15 am -
1 stop7h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Delta logo]()
$434
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/299:08 am -
1 stop8h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Delta logo]()
$453
Find flight deals from Lewiston to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Lewiston (LWS) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $429 (Delta) |
One-way from | $256 (Delta) |
Cheapflights Fare Finder
Customize your flight search to find flights from Lewiston to Ontario 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, Cheapflights users made 7,457,451 searches. Data last updated September 15, 2026.
Use the filters below to find and compare flights from Lewiston to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
LewistonOntario
LWS Lewiston Nez Perce Rgnl - ONT Ontario
LWSONT
Lewiston Nez Perce Rgnl
Tue 10/13
9:15 am-5:12 pm
1 stop7h 57m
Ontario
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$256
LewistonOntario
LWS Lewiston Nez Perce Rgnl - ONT Ontario
LWSONT
Lewiston Nez Perce Rgnl
Tue 3/2
12:30 pm-10:43 pm
2 stops10h 13m
Ontario
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$262
LewistonOntario
LWS Lewiston Nez Perce Rgnl - ONT Ontario
LWSONT
Lewiston Nez Perce Rgnl
Wed 3/3
12:30 pm-10:43 pm
2 stops10h 13m
Ontario
Mon 3/8
5:47 pm-10:49 pm
1 stop5h 02m
$429
LewistonOntario
LWS Lewiston Nez Perce Rgnl - ONT Ontario
LWSONT
Lewiston Nez Perce Rgnl
Fri 10/9
9:15 am-5:12 pm
1 stop7h 57m
Ontario
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$434
LewistonOntario
LWS Lewiston Nez Perce Rgnl - ONT Ontario
LWSONT
Lewiston Nez Perce Rgnl
Sun 11/29
9:08 am-5:19 pm
1 stop8h 11m
Ontario
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$453
LewistonOntario
LWS Lewiston Nez Perce Rgnl - ONT Ontario
LWSONT
Lewiston Nez Perce Rgnl
Tue 3/2
6:25 am-1:57 pm
1 stop7h 32m
Ontario
Sun 3/7
6:00 am-11:46 am
1 stop5h 46m
$456
LewistonOntario
LWS Lewiston Nez Perce Rgnl - ONT Ontario
LWSONT
Lewiston Nez Perce Rgnl
Wed 3/3
12:30 pm-10:43 pm
2 stops10h 13m
Ontario
Sun 3/7
6:00 am-11:46 am
1 stop5h 46m
$462
LewistonOntario
LWS Lewiston Nez Perce Rgnl - ONT Ontario
LWSONT
Lewiston Nez Perce Rgnl
Mon 3/1
6:25 am-1:57 pm
1 stop7h 32m
Ontario
Sat 3/6
6:00 am-11:46 am
1 stop5h 46m
$466
LewistonOntario
LWS Lewiston Nez Perce Rgnl - ONT Ontario
LWSONT
Lewiston Nez Perce Rgnl
Tue 3/2
6:25 am-1:57 pm
1 stop7h 32m
Ontario
Mon 3/8
5:47 pm-10:49 pm
1 stop5h 02m
$496
LewistonOntario
LWS Lewiston Nez Perce Rgnl - ONT Ontario
LWSONT
Lewiston Nez Perce Rgnl
Sun 2/28
6:25 am-1:57 pm
1 stop7h 32m
Ontario
Sun 3/7
6:00 am-11:46 am
1 stop5h 46m
$506
Showing 1-10 of 11 resultsSorted 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
Find useful and relevant information for your journey from Lewiston to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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