Cheap Flights from Denver (DEN) to Oceanside (OCN)

Popular airlines from Denver Intl. Airport (DEN) to Oceanside, CA (OCN)

Alternative airports near Oceanside

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to McClellan-Palomar CLD. Cheapest option available. Average driving time to city center is 19 minutes. Flights from $208
CLD
McClellan-Palomar
Cheapest
Average driving time to city center19 min
Flights from $208

Frequently asked questions

How much does a flight from Denver Intl. Airport (DEN) to Oceanside, CA (OCN) cost?
Lock in a cheap one-way flight or cheap return flight from Denver Intl. Airport (DEN) to Oceanside, CA (OCN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Denver Intl. Airport (DEN) to Oceanside, CA (OCN)?
is the most affordable month to fly from DEN to OCN. Traveling during an off-peak travel window is often the key to finding a great deal.
What is the cheapest airline that flies from Denver Intl. Airport (DEN) to Oceanside, CA (OCN)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll fly you from DEN to OCN. Then, sort your results by "Price (lowest to highest)" to pick up a good deal.
How many flights per day from Denver Intl. Airport (DEN) to Oceanside, CA (OCN)?
Nonstop flights from Denver Intl. Airport (DEN) to Oceanside, CA (OCN) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from DEN to OCN?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary based on a range of factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Denver Intl. Airport (DEN) to Oceanside, CA (OCN)?
Opt for a flight from Denver Intl. Airport (DEN) to Oceanside, CA (OCN) that leaves before 3 PM to reduce the likelihood of delays. Departures after this hour are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for San Diego County from Denver Intl. Airport (DEN)?
San Diego Intl. Airport (SAN) is the only airport in San Diego County with direct flights from Denver Intl. Airport (DEN). Consider the options and discover cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Denver Intl. Airport (DEN) to Oceanside, CA (OCN) last-minute?
Holding off until just before your departure to book a flight from DEN to OCN generally means paying more. Although you may find some last-minute deals, they aren't always guaranteed. Be flexible with your itinerary to maximize your chances of getting a bargain.
Is it cheaper to book a DEN to OCN flight and hotel package?
Opting for a DEN to OCN flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Pick from our impressive range of stays and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Denver Intl. Airport (DEN) to Oceanside, CA (OCN)?
If you reserved your DEN to OCN flight within the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

Travel information

Origin airport
Denver Intl.
Destination airport
Oceanside
Distance
838 mi

Book with confidence

Denver to Oceanside Flights

The cheapest times to fly from Denver to Oceanside

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Denver to Oceanside are during the month of . You can find some of the cheapest flights from Denver to Oceanside with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Denver to Oceanside

Sunday is one of the best days to book for cheap flights from Denver to Oceanside: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Denver to Oceanside

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Denver to Oceanside in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Denver to Oceanside flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Denver to Oceanside airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Denver to Oceanside Flights

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*Available to One Key members.