Flight Ticket and Schedule From Denver (DEN) to Ontario / Los Angeles (ONT)
Direct Flights only
1 Adult, 0 Child, 0 Infant (on lap)
Economy
From
To
Departure date
Return date
Search Flights
Need travel inspiration?
Discover flight ideas
Search and book cheap flight tickets from Denver to Ontario / Los Angeles
Flight Information from Denver (DEN) to Ontario / Los Angeles (ONT)
Shortest flight time
2 hr(s), 20 mins
When is the cheapest flight time from Denver to Ontario / Los Angeles?
Frequently Asked Questions
How early should I get to the airport for a domestic & international flight?
For domestic flights, we recommend arriving at the airport at least 2 hours before your scheduled departure time. For international flights, aim to be at the airport at least 3 hours prior to ensure smooth check-in, security checks, and to account for any unexpected delays. It’s better to be early and relaxed than rushing at the last minute right?
When is the best time to buy airline tickets?
Timing is everything when it comes to grabbing airline tickets. Typically, it’s best to book around 4-6 weeks in advance for domestic flights and 2-3 months for international routes. But the prices also depend on the travel demand, seasonality, and major events. You can always monitor the fare trends on Traveloka and set alerts to catch the best deals or promotions!
What is the cheapest day to fly to Ontario / Los Angeles?
Looking for the best deals to Ontario / Los Angeles? Historically, midweek flights (particularly on Tuesdays and Wednesdays), tend to be cheaper due to lower demand. However, airfares can fluctuate so we recommend keeping an eye on flight prices and being flexible with your travel dates. Booking in advance can be one the hacks to travel to Ontario / Los Angeles without breaking the bank!
What information do I need to know when booking a flight?
When booking a flight, every choice sets the tone for your trip. From the preferred flight route – be it direct or with layovers – to the in-flight experience – whether you opt for a standard economy seat or a luxurious first-class journey – and understanding baggage limits, there's a lot to weigh. Other considerations include travel insurance and the airline's booking policies.
How far in advance should I book an international flight?
For international flights, it’s wise to start your search about 5-6 months ahead with the optimal booking window being around 3-4 months before departure. This period often provides a balance between good fares and a reasonable choice of flight times and routes. But please note that several factors such as destination popularity, peak travel season, and regional major events can influence the timeline.
Do I need a passport and visa to fly between Denver to Ontario / Los Angeles?
Traveling from Denver to Ontario / Los Angeles typically requires specific documents. For international flights, a passport is almost always necessary. However, for domestic flights, neither a passport nor a visa is usually required, but an official ID will be needed. The necessity of a visa depends on the traveler's citizenship and Ontario / Los Angeles's entry regulations. It's crucial to verify visa requirements, as rules can differ between countries.
Why should I book my flight with Traveloka?
Booking flight tickets with Traveloka can feel like diving into an ocean of options! Our platform provides the most comprehensive choices to ensure you find the perfect flight for your adventure. With our smooth booking process, you'll also be provided with a variety of payment methods. Anxious about transacting online? We've got you covered with our top-tier security for each transaction! With Traveloka, your flight booking journey becomes hassle-free!
How long does it take to fly from Denver to Ontario / Los Angeles?
2 hours and 20 minutes is the shortest flight time from Denver to Ontario / Los Angeles.
About Ontario / Los Angeles
Looking for cheap flights from Denver to Ontario / Los Angeles? Discover the best deals for flight tickets on Traveloka! Flying from Denver to Ontario / Los Angeles will be more enjoyable with our exclusive Traveloka flight promo. Not just flights, you can also find discounted hotels, airport transfers, and attraction tickets from all over the world. With our complete product offering, booking one-way, round-trip, and multi-city flights will be much easier. Book now and dive into endless adventures with Traveloka!
Flight Information to Ontario / Los Angeles
Flight Duration | 2 hr(s) 20 mins |
Airport in Denver | |
Airport in Ontario / Los Angeles |
For all your unique travel choices, we got you
Popular Airlines
Popular Nearby Airports
Flights Tickets Malaysia Airlines
Flights Tickets Batik Air Malaysia
Flights Tickets AirAsia Berhad (Malaysia)
Flights Tickets Biman Bangladesh Airlines
Flights Tickets Nepal Airlines
Flights Tickets AirAsia X
Flights Tickets AirBorneo
Flights Tickets China Eastern Airlines
Flights Tickets Firefly
Flights Tickets Himalaya Airlines
Flights Tickets Batik Air
Flights Tickets TransNusa
Flights Tickets China Southern Airlines
Flights Tickets US-Bangla
Flights Tickets AirAsia Indonesia
Flights Tickets Singapore Airlines
Flights Tickets Japan Airlines
Flights Tickets SriLankan Airlines
Flights Tickets Saudia
Flights Tickets Scoot
Flights Tickets Thai Airways
Flights Tickets Royal Brunei Airlines
Flights Tickets Cathay Pacific
Flights Tickets Emirates
Flights Tickets Air China
Flights Tickets Hainan Airlines
Flights Tickets Turkish Airlines
Flights Tickets Super Air Jet
Flights Tickets Vietnam Airlines
Flights Tickets KLM
Flights Tickets Lion Air
Flights Tickets AirAsia Cambodia
Flights Tickets Aero Dili
Flights Tickets Uzbekistan Airways
Flights Tickets China Airlines
Flights Tickets Wings Air
Flights Tickets Cebu Pacific
Flights Tickets Citilink
Flights Tickets IndiGo
Flights Tickets Korean Air
Popular Airline
Domestic & International Airline Partners
We are partnering with various airlines across the globe to get you to wherever you need to be.
#1 All-in-one Travel App*
Easy refund & reschedule
App-only deals
Instant notifications & alerts
4.9/5
App rating
4.9/5
App rating
*In SEA, based on cumulative downloads (2014–2025) among travel apps. Source: SensorTower
About Traveloka
Products
Traveloka Sdn Bhd (Registration No. 201501003122), Suite 6-1, Level 6, Wisma UOA Damansara II, No. 6 Changkat Semantan, Damansara Heights, 50490 Kuala Lumpur, Malaysia
Copyright © 2026 Traveloka. All rights reserved.