Cheap Flights from Peoria (PIA) to San Diego (SEE)

Popular airlines from Peoria, IL (PIA-Greater Peoria Regional) to San Diego, CA (SEE-Gillespie Field)

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Alternative airports near San Diego

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 38 minutes. Flights from $324
CLD
McClellan-Palomar
Cheapest
Average driving time to city center38 min
Flights from $324
Flights from Peoria (PIA) to San Diego (SEE)
Origin airport
Greater Peoria Regional
Destination airport
Gillespie Field
Distance
1596 mi

Peoria to San Diego Flights

The cheapest times to fly from Peoria to San Diego

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 Peoria to San Diego are during the month of . You can find some of the cheapest flights from Peoria to San Diego with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Peoria to San Diego

Sunday is one of the best days to book for cheap flights from Peoria to San Diego: 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 Peoria to San Diego

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 Peoria to San Diego 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 Peoria to San Diego 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 Peoria to San Diego 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.

 

Frequently asked questions

How much does a flight from Greater Peoria Regional Airport (PIA) to San Diego, CA (SEE-Gillespie Field) cost?
Grab a cheap one-way flight or cheap return flight from Greater Peoria Regional Airport (PIA) to San Diego, CA (SEE-Gillespie Field) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Greater Peoria Regional Airport (PIA) to San Diego, CA (SEE-Gillespie Field)?
Traveling in can help you save, as it's the cheapest month for flights between PIA and SEE. You'll usually find the lowest fares during the off-season.
What is the cheapest airline that flies from Greater Peoria Regional Airport (PIA) to San Diego, CA (SEE-Gillespie Field)?
To find the cheapest airline that'll fly you from PIA to SEE, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Greater Peoria Regional Airport (PIA) to San Diego, CA (SEE-Gillespie Field)?
Direct flights from Greater Peoria Regional Airport (PIA) to San Diego, CA (SEE-Gillespie Field) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from PIA to SEE?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Greater Peoria Regional Airport (PIA) to San Diego, CA (SEE-Gillespie Field)?
Book a flight from Greater Peoria Regional Airport (PIA) to San Diego, CA (SEE-Gillespie Field) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures after this hour have a 22% higher chance of being canceled, on average.**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.
Is it cheaper to buy a plane ticket from Greater Peoria Regional Airport (PIA) to San Diego, CA (SEE-Gillespie Field) last-minute?
Last-minute bookings from PIA to SEE are generally more expensive. For the best prices, start searching for flights as early as possible. That said, if your travel plans are flexible, you may find a cheap fare just before your departure.
Is it cheaper to book a PIA to SEE flight and hotel package?
Booking a PIA to SEE flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Choose from our impressive range of accommodations and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Greater Peoria Regional Airport (PIA) to San Diego, CA (SEE-Gillespie Field)?
Typically, you can modify or cancel your PIA to SEE flight. However, there may be additional charges, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you'd like more details, go to our Customer Service portal.

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