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Peoria

$289+ Cheap flights from San Diego to Peoria, IL (SAN - PIA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — PIA
Aug 2 — Aug 91
Sat 8/2
Sat 8/9
1 adult, Economy
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Cheap flight deals from San Diego to Peoria

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Peoria (PIA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 28, 2025.

Round-trip from

$289
(American Airlines)

Popular in

September

Cheapest in

April

Average price

$579
From San Diego to Greater Peoria
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($96 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from San Diego to Peoria

Cheapest flights from San Diego to Peoria
Explore the most affordable flight options available from San Diego to Peoria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2025.

This American Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1411:46 amSAN - PIA
1 stop10h 28mAmerican Airlines
Tue 9/235:11 pmPIA - SAN
1 stop7h 25mAmerican Airlines
Deal found 7/27$289
This United Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/82:11 pmSAN - PIA
1 stop6h 04mUnited Airlines
Fri 9/265:20 pmPIA - SAN
1 stop6h 54mUnited Airlines
Deal found 7/26$379

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego to Peoria that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2025.
Use the filters below to find and compare flights from San Diego to Peoria that are best for you.

Fly from

San Diego

Fly to

Peoria

Route

Depart

Return

Price

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Sun 9/14

11:46 am-12:14 am

1 stop10h 28m

Greater Peoria

Tue 9/23

5:11 pm-10:36 pm

1 stop7h 25m

$289

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Mon 9/8

2:11 pm-10:15 pm

1 stop6h 04m

Greater Peoria

Sat 9/27

3:56 pm-10:14 pm

1 stop8h 18m

$379

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Thu 8/14

8:44 pm-10:19 am

2 stops11h 35m

$323

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Mon 8/4

6:25 am-8:16 pm

1 stop11h 51m

$385

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Best time to book a flight from San Diego to Peoria

Have a flexible travel schedule? Discover the best time to fly to Peoria from San Diego with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Diego to Peoria

What is the cheapest month to book a flight from San Diego to Peoria, Illinois?

Currently, August is the cheapest month in which you can book a flight from San Diego to Peoria, Illinois (average of $318). Flying from San Diego to Peoria, Illinois in October is currently the most expensive (average of $425). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from San Diego to Peoria, Illinois?

Reviews of airlines servicing Peoria

Get insights into the airlines that provide service to Peoria. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Peoria. Reviews last updated July 28, 2025.
Peruse reviews from past customers who have flown with United Airlines and American Airlines from San Diego to Peoria to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,892 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Food

6.6

Overall

7.4

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,892 reviews
United Airlines
7.4
Good
8,892 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Food

6.6

Overall

7.4

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,892 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Food

6.6

Overall

7.4

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from San Diego to Peoria. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from San Diego to Peoria, Illinois round-trip?

    Our cheapest airline available from San Diego to Peoria, Illinois is American Airlines. Our recent data shows that you can find tickets from as low as $289 on this airline. An additional option worth looking into is United Airlines, starting at $379. You may be able to fly from San Diego to Peoria, Illinois for 42% less than the average price by searching for these airlines.

  • Can I find deals for flights from San Diego to Peoria that include hotel bookings?

    Yes. In addition to deals on San Diego to Peoria flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Diego to Peoria?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Peoria.

  • Can I find deals for business class flights from San Diego to Peoria?

    Yes. Cheapflights offers flight deals from San Diego to Peoria by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Diego to Peoria, Illinois?

    Currently, August is the cheapest month in which you can book a flight from San Diego to Peoria, Illinois (average of $318). Flying from San Diego to Peoria, Illinois in October is currently the most expensive (average of $425). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 2 airlines flying from San Diego to Peoria

Discover the top 2 airlines that operate flights from San Diego to Peoria. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$269Average$558FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$454FlexibilityNo cancel feeOn-time71%

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