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Find The Best Dates To Fly from Los Angeles - Ontario Intl. to Tri-Cities Regional
Amazing ONT to TRI Flight Deals
The cheapest flights to Tri-Cities Regional found within the past 7 days were $348 round trip and $275 one way. Prices and availability subject to change. Additional terms may apply.
Traveling From | Los Angeles - Ontario Intl. |
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Traveling To | Tri-Cities Regional |
Shortest Flight Time | hours mins |
Earliest Departure Time | |
Latest Departure Time | |
Lowest Flight Price | $348 |
Route Info
Flight path for flights from LA/Ontario International Airport to Tri-Cities Regional Airport.
Discover our best flights from Ontario ONT to Tri-Cities TRI.
With 20 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times.
Find our best return flights from Ontario ONT to Tri-Cities TRI at the right price
Airfares to Tri-Cities TRI from Ontario ONT currently cost between $348 and $488. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply.
Book one-way flights from Ontario ONT to Tri-Cities TRI
If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from Ontario ONT to Tri-Cities TRI on Travelocity starting at $275. Prices and availability subject to change. Additional terms may apply.
Get to Tri-Cities TRI from Ontario ONT quicker with direct flights.
Get to Tri-Cities faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to TRI from ONT to take around hour(s) min(s).
Find our cheapest airfares for flights from Ontario ONT to Tri-Cities TRI
Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to TRI from ONT. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.
Get our best airfare deals for your flight from Ontario ONT to Tri-Cities TRI today
If you’re flexible about when you travel, December is usually the cheapest month to fly from Ontario ONT to Tri-Cities TRI. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first.
Book flexible airline tickets for flights to Tri-Cities TRI from Ontario ONT
Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to TRI from ONT have this option.
Travel with confidence when you book flights to Tri-Cities TRI from Ontario ONT with Travelocity
We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving.
Popular Flight Routes from Ontario (ONT)
Travelers at ONT love to visit these top cities. Roam to the top destinations from Ontario (ONT) today with the cheap prices from Travelocity!
Top ONT Flights to Domestic Cities
- Ontario to Chicago (ONT - ORD)
- Ontario to Denver (ONT - DEN)
- Ontario to Los Angeles (ONT - LAX)
- Ontario to Houston (ONT - IAH)
- Ontario to Newark (ONT - EWR)
- Ontario to New York (ONT - JFK)
- Ontario to Atlanta (ONT - ATL)
- Ontario to San Francisco (ONT - SFO)
- Ontario to Washington (ONT - IAD)
- Ontario to Dallas (ONT - DFW)
Top ONT Flights to International Cities
- Ontario to Beijing (ONT - PEK)
- Ontario to Frankfurt (ONT - FRA)
- Ontario to Paris (ONT - CDG)
- Ontario to Amsterdam (ONT - AMS)
- Ontario to Singapore (ONT - SIN)
- Ontario to Shanghai (ONT - PVG)
- Ontario to Bangkok (ONT - BKK)
- Ontario to Seoul (ONT - ICN)
- Ontario to Dubai (ONT - DXB)
- Ontario to Hong Kong (ONT - HKG)
Popular Flight Routes from Tri-Cities (TRI)
Travelers at TRI love to visit these top cities. Roam to the top destinations from Tri-Cities(TRI) today with the cheap prices from Travelocity!
Top TRI Flights to Domestic Cities
- Bristol, VA/Johnson City/Kingsport to Chicago (TRI - ORD)
- Bristol, VA/Johnson City/Kingsport to Denver (TRI - DEN)
- Bristol, VA/Johnson City/Kingsport to Los Angeles (TRI - LAX)
- Bristol, VA/Johnson City/Kingsport to Houston (TRI - IAH)
- Bristol, VA/Johnson City/Kingsport to Newark (TRI - EWR)
- Bristol, VA/Johnson City/Kingsport to New York (TRI - JFK)
- Bristol, VA/Johnson City/Kingsport to Atlanta (TRI - ATL)
- Bristol, VA/Johnson City/Kingsport to San Francisco (TRI - SFO)
- Bristol, VA/Johnson City/Kingsport to Washington (TRI - IAD)
- Bristol, VA/Johnson City/Kingsport to Dallas (TRI - DFW)
Top TRI Flights International Cities
- Bristol, VA/Johnson City/Kingsport to Beijing (TRI - PEK)
- Bristol, VA/Johnson City/Kingsport to Frankfurt (TRI - FRA)
- Bristol, VA/Johnson City/Kingsport to Paris (TRI - CDG)
- Bristol, VA/Johnson City/Kingsport to Amsterdam (TRI - AMS)
- Bristol, VA/Johnson City/Kingsport to Singapore (TRI - SIN)
- Bristol, VA/Johnson City/Kingsport to Shanghai (TRI - PVG)
- Bristol, VA/Johnson City/Kingsport to Bangkok (TRI - BKK)
- Bristol, VA/Johnson City/Kingsport to Seoul (TRI - ICN)
- Bristol, VA/Johnson City/Kingsport to Hong Kong (TRI - HKG)
- Bristol, VA/Johnson City/Kingsport to Dubai (TRI - DXB)
Top Airlines Servicing ONT - Los Angeles - Ontario Intl. Airport
Top Airlines Servicing TRI - Tri-Cities Regional Airport
Top Airlines Routes From ONT
- Alaska Airlines Ontario to Portland
- Alaska Airlines Ontario to Honolulu
- China Airlines Ontario to Taipei
- China Airlines Ontario to Manila
- Frontier Airlines Ontario to Denver
- Frontier Airlines Ontario to Sacramento
- Alaska Airlines Ontario to Seattle
- Alaska Airlines Ontario to New York
- Volaris Ontario to Guadalajara
- Frontier Airlines Ontario to Houston
Top Airlines Routes To TRI
- American Airlines Jacksonville to Tri-Cities
- American Airlines Newark Liberty Intl. Airport to Tri-Cities
- American Airlines San Diego to Tri-Cities
- American Airlines Norfolk to Tri-Cities
- American Airlines Raleigh to Tri-Cities
- Delta Fort Lauderdale to Tri-Cities
- Delta Denver to Tri-Cities
- Delta Dallas to Tri-Cities
- American Airlines Louisville to Tri-Cities
- American Airlines Dallas to Tri-Cities