What is the cheapest airline to fly from Ontario to Twin Falls round-trip?

Flying on Delta is currently your cheapest option to Twin Falls, with prices starting at $356.

What is the cheapest day to fly from Ontario to Twin Falls?

Travelers seeking maximum savings on their Ontario to Twin Falls flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Twin Falls ranges from 0.3 - 1.4 inches per month. May is typically the wettest month, when rainfall can reach 1.4 in. July is typically the driest time to visit Twin Falls when rainfall is around 0.3 in.

If weather is an important factor for your trip to Twin Falls, 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 73.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 28.4 F).

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

Unlike at noon, when flights are generally more expensive, you can save up to 12% on flights from Ontario to Twin Falls by exploring options for tickets in the morning.

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.

$293+ Flights from Ontario to Twin Falls

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Cheap flight deals from Ontario to Twin Falls

Round-trip from	$356 (Delta)
One-way from	$293 (Delta)

From Ontario to Twin Falls Joslin

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One-way flight from Ontario to Twin Falls Joslin

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Find 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 July 3, 2025.

Thu 9/44:50 pmONT - TWF

1 stop4h 40mDelta

Sun 9/76:15 amTWF - ONT

1 stop3h 40mDelta

Deal found 7/1

$356

Best flights from Ontario to Twin Falls
Discover carefully curated flight deals from Ontario to Twin Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 3, 2025.

Thu 9/44:50 pmONT - TWF

1 stop4h 40mDelta

Sun 9/76:15 amTWF - ONT

1 stop3h 40mDelta

Deal found 7/1

$356

Last-minute flights from Ontario to Twin Falls
Discover last-minute flight deals from Ontario to Twin Falls. Data last updated July 3, 2025 and is based on user searches.

Thu 7/179:44 amONT - TWF

1 stop3h 54mDelta

Mon 7/216:15 amTWF - ONT

1 stop3h 32mDelta

Deal found 7/1

$597

One-way flights from Ontario to Twin Falls
Search for one-way flight options from Ontario to Twin Falls. Find affordable one-way fares based on user searches. Data last updated July 3, 2025.

Mon 8/119:50 amONT - TWF

1 stop3h 48mDelta

Deal found 7/2

$293

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

OntarioTwin Falls

ONT - TWF

ONTTWF

Ontario

Thu 9/4

4:50 pm-10:30 pm

1 stop4h 40m

Twin Falls Joslin

Sun 9/7

6:15 am-8:55 am

1 stop3h 40m

$356

OntarioTwin Falls

ONT - TWF

ONTTWF

Ontario

Mon 8/11

9:50 am-2:38 pm

1 stop3h 48m

$293

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

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.

Reviews of airlines servicing Twin Falls

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

8.0

Very good

7,982 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

7,982 reviews

Delta

8.0

Very good

7,982 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

What is the cheapest airline to fly from Ontario to Twin Falls round-trip?
Flying on Delta is currently your cheapest option to Twin Falls, with prices starting at $356.
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.

See more FAQs

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Top airline flying from Ontario to Twin Falls

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$406	Average$486	FlexibilityNo cancel fee	On-timeN/A

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$293+ Cheap flights from Ontario to Twin Falls (ONT - TWF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/11. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Twin Falls with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Ontario to Twin Falls

Round-trip from

One-way from

Find flight deals from Ontario to Twin Falls

Cheapest flights from Ontario to Twin FallsExplore 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 July 3, 2025.

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 July 3, 2025.

Cheapflights Fare Finder

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

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.

Reviews of airlines servicing Twin Falls

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.

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.

What is the cheapest airline to fly from Ontario to Twin Falls round-trip?

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

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

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

Traveling to a place near Ontario?

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

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Top airline flying from Ontario to Twin Falls

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Book with Flexibility

Travel Smart

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 July 3, 2025.