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$409+ Cheap flights from Blountville to Ontario (TRI - 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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
TRI — ONT
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
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 August 18, 2025.

Round-trip from

$409
(Delta)

Popular in

April

Cheapest in

July

Average price

$666
From Blountville Tri Cities TN/VA to Ontario
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($153 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 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 August 18, 2025.

This Delta deal was found by Cheapflights users on 8/18. 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 10/73:48 pmTRI - ONT
1 stop9h 34mDelta
Fri 10/1710:00 pmONT - TRI
1 stop8h 22mDelta
Deal found 8/18$409
This American Airlines deal was found by Cheapflights users on 8/17. 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 10/75:25 pmTRI - ONT
1 stop7h 11mAmerican Airlines
Tue 10/1410:09 amONT - TRI
2 stops9h 39mAmerican Airlines
Deal found 8/17$414
This Delta deal was found by Cheapflights users on 8/17. 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 10/103:48 pmTRI - ONT
1 stop9h 34mDelta
Fri 10/1710:00 pmONT - TRI
1 stop8h 22mDelta
Deal found 8/17$434
This Delta deal was found by Cheapflights users on 8/18. 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 10/93:48 pmTRI - ONT
1 stop9h 34mDelta
Tue 10/1410:00 pmONT - TRI
1 stop8h 22mDelta
Deal found 8/18$438
This Delta deal was found by Cheapflights users on 8/18. 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 10/67:17 pmTRI - ONT
1 stop18h 09mDelta
Wed 10/1510:00 pmONT - TRI
1 stop8h 22mDelta
Deal found 8/18$448
This Delta deal was found by Cheapflights users on 8/17. 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 10/103:48 pmTRI - ONT
1 stop9h 34mDelta
Sun 10/1210:00 pmONT - TRI
1 stop8h 22mDelta
Deal found 8/17$463
This Delta deal was found by Cheapflights users on 8/18. 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 10/93:48 pmTRI - ONT
1 stop9h 34mDelta
Sun 10/1910:00 pmONT - TRI
1 stop8h 22mDelta
Deal found 8/18$467
This Delta deal was found by Cheapflights users on 8/18. 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 10/77:17 pmTRI - ONT
2 stops16h 48mDelta
Wed 10/1510:00 pmONT - TRI
1 stop8h 22mDelta
Deal found 8/18$468
This Delta deal was found by Cheapflights users on 8/17. 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 10/103:48 pmTRI - ONT
1 stop9h 34mDelta
Sat 10/1111:36 amONT - TRI
1 stop18h 46mDelta
Deal found 8/17$473
This Delta deal was found by Cheapflights users on 8/18. 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 10/67:17 pmTRI - ONT
1 stop18h 09mDelta
Sat 10/1811:36 amONT - TRI
1 stop7h 45mDelta
Deal found 8/18$477
This Delta deal was found by Cheapflights users on 8/18. 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 10/310:56 amTRI - ONT
1 stop26h 46mDelta
Tue 10/1410:00 pmONT - TRI
1 stop8h 22mDelta
Deal found 8/18$478

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 August 18, 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

Wed 10/8

3:48 pm-10:22 pm

1 stop9h 34m

Ontario

Fri 10/17

10:00 pm-9:22 am

1 stop8h 22m

$409

BlountvilleOntario

TRI - ONT

TRIONT

Blountville Tri Cities TN/VA

Tue 10/7

1:28 pm-7:19 pm

1 stop8h 51m

Ontario

Mon 10/13

10:00 pm-9:22 am

1 stop8h 22m

$409

BlountvilleOntario

TRI - ONT

TRIONT

Blountville Tri Cities TN/VA

Tue 10/7

1:28 pm-7:19 pm

1 stop8h 51m

Ontario

Wed 10/15

10:00 pm-9:22 am

1 stop8h 22m

$409

BlountvilleOntario

TRI - ONT

TRIONT

Blountville Tri Cities TN/VA

Fri 10/10

3:48 pm-10:22 pm

1 stop9h 34m

Ontario

Wed 10/15

10:00 pm-9:22 am

1 stop8h 22m

$409

BlountvilleOntario

TRI - ONT

TRIONT

Blountville Tri Cities TN/VA

Tue 10/7

3:48 pm-10:22 pm

1 stop9h 34m

Ontario

Fri 10/17

10:00 pm-9:22 am

1 stop8h 22m

$409

BlountvilleOntario

TRI - ONT

TRIONT

Blountville Tri Cities TN/VA

Wed 10/8

1:28 pm-7:19 pm

1 stop8h 51m

Ontario

Tue 10/14

10:00 pm-9:22 am

1 stop8h 22m

$409

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

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 August 18, 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.

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 August 18, 2025.
Read through reviews of airlines operating flights from Blountville to Ontario, such as Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

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
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

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.

  • How long is the flight from Blountville to Ontario?

    Airlines like Delta fly from Blountville to Ontario in about 9h 34m. The time it takes to get you to your destination can typically vary by up to . Blountville and Ontario are separated by a distance of 1980 mi.

  • What is the cheapest airline to fly from Blountville to Ontario round-trip?

    Delta, at $299, was found to be the cheapest airline from Blountville to Ontario..

  • 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.

See more FAQs

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Top airline flying from Blountville to Ontario

Discover the top airline 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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$299Average$496FlexibilityNo cancel feeOn-timeN/A

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