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$309+ Cheap flights from Blountville to Ontario (TRI - ONT)

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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
TRI — ONT
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Blountville to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Blountville (TRI) 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 June 12, 2025.

Round-trip from

$409
(Delta)

One-way from

$309
(Delta)

Popular in

March

Cheapest in

August

Average price

$519
From Blountville Tri Cities TN/VA to Ontario
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One-way flight from Blountville Tri Cities TN/VA to Ontario
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Highest demand for flights based on searches. 26% potential increase in price ($214 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Blountville to Ontario

Cheapest flights from Blountville to Ontario
Explore the most affordable flight options available from Blountville to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Delta deal was found by Cheapflights users on 6/10. 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.
Sat 8/26:00 amTRI - ONT
1 stop7h 30mDelta
Fri 8/2210:00 pmONT - TRI
1 stop9h 10mDelta
Deal found 6/10$409
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/87:16 amTRI - ONT
1 stop9h 31mAmerican Airlines
Tue 7/1510:28 pmONT - TRI
1 stop9h 18mAmerican Airlines
Deal found 6/10$434

Cheapflights Fare Finder

Customize your flight search to find flights from Blountville 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 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Blountville to Ontario that are best for you.

Fly from

Blountville

Fly to

Ontario

Route

Depart

Return

Price

BlountvilleOntario

TRI - ONT

TRIONT

Blountville Tri Cities TN/VA

Sat 8/2

6:00 am-10:30 am

1 stop7h 30m

Ontario

Fri 8/22

10:00 pm-10:10 am

1 stop9h 10m

$409

BlountvilleOntario

TRI - ONT

TRIONT

Blountville Tri Cities TN/VA

Tue 7/8

7:16 am-1:47 pm

1 stop9h 31m

Ontario

Tue 7/15

10:28 pm-10:46 am

1 stop9h 18m

$434

BlountvilleOntario

TRI - ONT

TRIONT

Blountville Tri Cities TN/VA

Mon 8/18

3:40 pm-7:11 pm

1 stop6h 31m

$309

BlountvilleOntario

TRI - ONT

TRIONT

Blountville Tri Cities TN/VA

Sun 8/3

4:36 pm-10:57 pm

1 stop9h 21m

$399

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Best time to book a flight from Blountville to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Blountville 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 Blountville to Ontario

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

Currently, August is the cheapest month in which you can book a flight from Blountville to Ontario (average of $246). Flying from Blountville to Ontario in March is currently the most expensive (average of $328). 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.

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

Find hourly flight availability from Blountville to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

A simple way to save on the total cost of your ticket is to fly from Blountville to Ontario at noon. If you’re flexible enough to do this you can expect to save up to 26% on your trip compared to booking a flight in the morning.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated June 12, 2025.
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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

  • What are the cheapest airlines flying from Blountville to Ontario round-trip?

    Delta, at $409, was found to be the cheapest airline from Blountville to Ontario. An alternate airline flying to your destination would be American Airlines.

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

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

  • How can I find direct flights from Blountville to Ontario?

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

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

    Yes. Cheapflights offers flight deals from Blountville to Ontario 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 Blountville to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Blountville to Ontario (average of $246). Flying from Blountville to Ontario in March is currently the most expensive (average of $328). 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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Alternative routes for Blountville to Ontario

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Top 2 airlines flying from Blountville to Ontario

Discover the top 2 airlines that operate flights from Blountville to Ontario. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$299Average$533FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$318Average$498FlexibilityNo cancel feeOn-time71%

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