
Cheap United flights from Fort Collins to Ontario (FNL to ONT)
Find The Best Day To Fly from Fort Collins to Ontario
ONT From FNL Economy Coach Packages on Similar Airlines



Discover our best United flight from Fort Collins FNL to Ontario ONT
To find the best deals on flights to Fort Collins from Ontario with United, just enter your travel dates, filter by United, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.
Return flights from Fort Collins FNL to Ontario ONT with United
If you’re planning a round trip, booking return flights with United is usually the most cost-effective option. With airfares ranging from to , it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply.
Book one-way United flights from Fort Collins FNL to Ontario ONT
A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way United flight from Fort Collins to Ontario costs from . Prices and availability subject to change. Additional terms may apply.
The easy way to find cheap flights to Ontario ONT from Fort Collins FNL with United
To find a cheap United flight from Fort Collins FNL to Ontario ONT, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference.
How to find our best airfare deals on United flights from Fort Collins FNL to Ontario ONT
If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as , or if you book a flight with a stopover.
Find nonstop flights from Fort Collins FNL to Ontario ONT with United
If you’re keen to be on Ontario soil fast, don’t waste time with a stopover—filter your search results to show direct United flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it.
Flexible airline tickets for United flights from Fort Collins FNL to Ontario ONT
Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.
There are a lot of reasons to book your flights to Ontario ONT from Fort Collins FNL with United on Travelocity
At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.
Airport code | Country | Airport name | Number of flights |
---|---|---|---|
ORD | USA | O'Hare Intl. | 227 |
DEN | USA | Denver Intl. | 226 |
IAH | USA | George Bush Intercontinental | 136 |
IAD | USA | Washington Dulles Intl. | 100 |
SFO | USA | San Francisco Intl. | 64 |
LAX | USA | Los Angeles Intl. | 23 |
EWR | USA | Liberty Intl. | 20 |
FRA | DEU | Frankfurt Intl. | 19 |
NRT | JPN | Narita Intl. | 19 |
PEK | CHN | Capital Intl. | 16 |
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Top United Flight Routes from ONT
Domestic
- Denver to Las Vegas (DEN - LAS)
- Newark Liberty Intl. Airport to Atlanta (EWR - ATL)
- Atlanta to Las Vegas (ATL - LAS)
- Newark Liberty Intl. Airport to Miami (EWR - MIA)
- Newark Liberty Intl. Airport to Las Vegas (EWR - LAS)
- Los Angeles to San Salvador (LAX - SAL)
- Atlanta to New York (ATL - LGA)
- Newark Liberty Intl. Airport to Atlanta (EWR - ATL)
- Newark Liberty Intl. Airport to Orlando (EWR - MCO)
- Newark Liberty Intl. Airport to Fort Lauderdale (EWR - FLL)
International
- Philadelphia to Orlando (PHL - MCO)
- Los Angeles to San Salvador (LAX - SAL)
- Atlanta to Las Vegas (ATL - LAS)
- Dallas to Las Vegas (DFW - LAS)
- Boston to Orlando (BOS - MCO)
- Denver to Las Vegas (DEN - LAS)
- Newark Liberty Intl. Airport to Santiago (EWR - STI)
- Newark Liberty Intl. Airport to Fort Lauderdale (EWR - FLL)
- Atlanta to New York (ATL - LGA)
- San Juan to Orlando (SJU - MCO)
Most Popular
- Los Angeles to Chicago (LAX - ORD)
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- Minneapolis to Denver (MSP - DEN)
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- Los Angeles to Orlando (LAX - MCO)
- Boston to Los Angeles (BOS - LAX)
- Denver to New York (DEN - JFK)
- Los Angeles to Miami (LAX - MIA)
- Los Angeles to Honolulu (LAX - HNL)
- Los Angeles to Dallas (LAX - DFW)
- Los Angeles to New York (LAX - JFK)
- San Francisco to Los Angeles (SFO - LAX)
- Dallas to Denver (DFW - DEN)
- New York to Los Angeles (JFK - LAX)
- Los Angeles to Mexico City (LAX - MEX)
- Atlanta to Los Angeles (ATL - LAX)
- Phoenix to Los Angeles (PHX - LAX)
- San Francisco to New York (SFO - JFK)
- Salt Lake City to Los Angeles (SLC - LAX)
- Air India San Francisco (SFO) to Delhi (DEL) flights
- Los Angeles to Boston (LAX - BOS)
- Chicago to Los Angeles (ORD - LAX)
- Philadelphia to Los Angeles (PHL - LAX)
- New York to San Francisco (JFK - SFO)
- Los Angeles to Seattle (LAX - SEA)
- Los Angeles to San Francisco (LAX - SFO)
- Dallas to Los Angeles (DFW - LAX)