HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Twin Falls

$402+ Cheap flights from Ontario to Twin Falls (ONT - TWF)

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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — TWF
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Twin Falls 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 Ontario to Twin Falls

Cheapest flights from Ontario to Twin Falls
Explore the most affordable flight options available from Ontario to Twin Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

This Delta deal was found by Cheapflights users on 1/25. 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 2/255:00 pm
ONT
-
TWF
1 stop4h 47m
Delta
Sat 2/286:00 am
TWF
-
ONT
2 stops8h 54m
Delta
Deal found 1/25$402
This Delta deal was found by Cheapflights users on 1/24. 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 7/156:00 am
ONT
-
TWF
1 stop3h 43m
Delta
Wed 7/2211:37 am
TWF
-
ONT
1 stop5h 37m
Delta
Deal found 1/24$436
This Delta deal was found by Cheapflights users on 1/24. 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 2/255:00 pm
ONT
-
TWF
1 stop4h 47m
Delta
Mon 3/23:44 pm
TWF
-
ONT
2 stops7h 53m
Delta
Deal found 1/24$488
This Delta deal was found by Cheapflights users on 1/25. 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.
Thu 3/126:00 am
ONT
-
TWF
1 stop3h 52m
Delta
Thu 3/1911:45 am
TWF
-
ONT
1 stop5h 43m
Delta
Deal found 1/25$522
This Delta deal was found by Cheapflights users on 1/24. 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.
Thu 2/265:00 pm
ONT
-
TWF
1 stop4h 47m
Delta
Sun 3/16:00 am
TWF
-
ONT
2 stops8h 54m
Delta
Deal found 1/24$578
This Delta deal was found by Cheapflights users on 1/26. 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 2/65:10 pm
ONT
-
TWF
1 stop4h 39m
Delta
Mon 2/93:35 pm
TWF
-
ONT
2 stops8h 09m
Delta
Deal found 1/26$588

Find flight deals from Ontario to Twin Falls

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Twin Falls (TWF). 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 January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$402
(Delta)

Popular in

January

Cheapest in

August

Average price

$1,044
Provider with most accurate pricing for Ontario-Twin Falls Joslin flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Twin Falls Joslin flights.
Search Deals
From Ontario to Twin Falls Joslin
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($136 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($43 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Twin Falls 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 2,558,603 searches. Data last updated January 26, 2026.
Use the filters below to find and compare flights from Ontario to Twin Falls that are best for you.

Fly from

Ontario

Fly to

Twin Falls

Route

Depart

Return

Price

OntarioTwin Falls

ONT - TWF

ONTTWF

Ontario

Wed 2/25

5:00 pm-10:47 pm

1 stop4h 47m

Twin Falls Joslin

Sat 2/28

6:00 am-1:54 pm

2 stops8h 54m

$402

OntarioTwin Falls

ONT - TWF

ONTTWF

Ontario

Wed 7/15

6:00 am-10:43 am

1 stop3h 43m

Twin Falls Joslin

Wed 7/22

11:37 am-4:14 pm

1 stop5h 37m

$436

OntarioTwin Falls

ONT - TWF

ONTTWF

Ontario

Wed 2/25

5:00 pm-10:47 pm

1 stop4h 47m

Twin Falls Joslin

Mon 3/2

3:44 pm-10:37 pm

2 stops7h 53m

$488

OntarioTwin Falls

ONT - TWF

ONTTWF

Ontario

Thu 3/12

6:00 am-10:52 am

1 stop3h 52m

Twin Falls Joslin

Thu 3/19

11:45 am-4:28 pm

1 stop5h 43m

$522

OntarioTwin Falls

ONT - TWF

ONTTWF

Ontario

Thu 2/26

5:00 pm-10:47 pm

1 stop4h 47m

Twin Falls Joslin

Sun 3/1

6:00 am-1:54 pm

2 stops8h 54m

$578

OntarioTwin Falls

ONT - TWF

ONTTWF

Ontario

Fri 2/6

5:10 pm-10:49 pm

1 stop4h 39m

Twin Falls Joslin

Mon 2/9

3:35 pm-10:44 pm

2 stops8h 09m

$588

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/24

Compare providers for flights from Ontario to Twin Falls

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 Ontario to Twin Falls in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

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

Have a flexible travel schedule? Discover the best time to fly to Twin Falls 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 Twin Falls

What is the cheapest month to book a flight from Ontario to Twin Falls?

Currently, March is the cheapest month in which you can book a flight from Ontario to Twin Falls (average of $138). Flying from Ontario to Twin Falls in April is currently the most expensive (average of $357). 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 Twin Falls

Get insights into the airlines that provide service to Twin Falls. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Twin Falls. Reviews last updated January 26, 2026.
Read reviews from past customers who have flown Delta from Ontario to Twin Falls. 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
7.9
Good
8,111 reviews

Overall

7.9

Food

7.2

Crew

8.5

Boarding

8.1

Entertainment

7.8

Comfort

7.9

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
7.9
Good
8,111 reviews
Delta
7.9
Good
8,111 reviews

Overall

7.9

Food

7.2

Crew

8.5

Boarding

8.1

Entertainment

7.8

Comfort

7.9

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

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

  • How long is the flight from Ontario to Twin Falls?

    Departing from Ontario to Twin Falls will take you 4h 47m. The distance between Ontario and Twin Falls is about 606 mi.

  • Can I find deals for flights from Ontario to Twin Falls that include hotel bookings?

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

  • How can I find direct flights from Ontario to Twin Falls?

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

  • Can I find deals for business class flights from Ontario to Twin Falls?

    Yes. Cheapflights offers flight deals from Ontario to Twin Falls 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 Twin Falls?

    Currently, March is the cheapest month in which you can book a flight from Ontario to Twin Falls (average of $138). Flying from Ontario to Twin Falls in April is currently the most expensive (average of $357). 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

Traveling to a place near Twin Falls?

Book flights to Twin Falls if you plan to visit one of these locations
Burley
Jackpot

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 Twin Falls

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Boise flights
Los Angeles to Jackson flights
Santa Ana to Boise flights
Los Angeles to Spokane flights
San Francisco to Jackson flights
San Francisco to Boise flights
Los Angeles to Hailey flights
Burbank to Boise flights
Ontario to Boise flights
San Francisco to Spokane flights
Sacramento to Spokane flights
Sacramento to Boise flights
San Francisco to Hailey flights
San Jose to Boise flights
Santa Ana to Spokane flights
Ontario to Spokane flights
San Diego to Boise flights
San Jose to Spokane flights
San Diego to Spokane flights
Ontario to Jackson flights
Oakland to Boise flights
San Diego to Jackson flights
Oakland to Spokane flights
Reno to Spokane flights
Las Vegas to Spokane flights
Las Vegas to Boise flights
Los Angeles to Idaho Falls flights
Palm Springs to Boise flights
Burbank to Spokane flights
Medford to Boise flights
San Diego to Hailey flights
San Francisco to Idaho Falls flights
Santa Ana to Jackson flights
Santa Ana to Idaho Falls flights
Burbank to Jackson flights
Fresno to Spokane flights
Fresno to Boise flights
Ontario to Idaho Falls flights
San Jose to Idaho Falls flights
San Jose to Jackson flights
Oakland to Hailey flights
Long Beach to Boise flights
Reno to Boise flights
Ontario to Hailey flights
Reno to Idaho Falls flights
Long Beach to Jackson flights
San Jose to Hailey flights
San Luis Obispo to Boise flights
Fresno to Jackson flights
Santa Barbara to Boise flights

Top airline flying from Ontario to Twin Falls

Discover the top airline that operate flights from Ontario to Twin Falls. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$406Average$416FlexibilityNo cancel feeOn-timeN/A

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.