HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Peoria

$272+ Cheap flights from San Diego to Peoria, IL (SAN - PIA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/30. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — PIA
Apr 12 — Apr 191
Sun 4/12
Sun 4/19
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Diego to Peoria with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 March 13, 2026.

This American Airlines deal was found by Cheapflights users on 3/9. 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.
Wed 4/2912:17 pm
SAN
-
PIA
1 stop8h 56m
American Airlines
Wed 5/61:22 pm
PIA
-
SAN
1 stop9h 21m
American Airlines
Deal found 3/9$329
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/99:59 pm
SAN
-
PIA
1 stop12h 00m
Multiple Airlines
Sun 7/199:10 pm
PIA
-
SAN
1 stop13h 48m
Multiple Airlines
Deal found 3/9$340
This United Airlines deal was found by Cheapflights users on 3/11. 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.
Fri 8/281:53 pm
SAN
-
PIA
1 stop8h 29m
United Airlines
Mon 8/311:21 pm
PIA
-
SAN
1 stop7h 09m
United Airlines
Deal found 3/11$349
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Wed 4/2911:01 am
SAN
-
PIA
2 stops8h 13m
United Airlines
Wed 5/68:30 am
PIA
-
SAN
2 stops8h 26m
United Airlines
Deal found 3/9$372
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1811:16 am
SAN
-
PIA
1 stop6h 40m
Multiple Airlines
Sun 6/219:28 pm
PIA
-
SAN
1 stop13h 30m
Multiple Airlines
Deal found 3/9$383
This United Airlines deal was found by Cheapflights users on 3/11. 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.
Wed 4/16:20 am
SAN
-
PIA
1 stop8h 24m
United Airlines
Tue 4/78:50 am
PIA
-
SAN
1 stop8h 07m
United Airlines
Deal found 3/11$402
This United Airlines deal was found by Cheapflights users on 3/8. 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.
Fri 6/1910:40 pm
SAN
-
PIA
1 stop9h 30m
United Airlines
Sun 6/211:21 pm
PIA
-
SAN
2 stops12h 33m
United Airlines
Deal found 3/8$424

Find 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 March 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$329
(American Airlines)

One-way from

$272
(American Airlines)

Popular in

December

Cheapest in

November

Average price

$321
Provider with most accurate pricing for San Diego-Greater Peoria flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Diego-Greater Peoria flights.
Search Deals
From San Diego to Greater Peoria
Search Deals
One-way flight from San Diego to Greater Peoria
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 13, 2026.
Use the filters below to find and compare flights from San Diego to Peoria that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Wed 4/1

6:20 am-4:44 pm

1 stop8h 24m

Greater Peoria

Tue 4/7

10:40 am-5:16 pm

2 stops8h 36m

$407

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Thu 4/30

9:45 pm-10:04 am

2 stops10h 19m

Greater Peoria

Fri 5/8

5:30 pm-10:39 pm

1 stop7h 09m

$444

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Thu 4/30

9:45 pm-10:04 am

2 stops10h 19m

Greater Peoria

Thu 5/7

5:30 pm-10:39 pm

1 stop7h 09m

$444

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Mon 4/27

8:37 pm-10:02 am

2 stops11h 25m

Greater Peoria

Thu 5/7

5:30 pm-10:39 pm

1 stop7h 09m

$444

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Fri 3/27

4:15 pm-12:37 pm

1 stop18h 22m

Greater Peoria

Sun 3/29

6:01 pm-4:13 pm

2 stops24h 12m

$488

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Thu 3/26

8:50 pm-10:03 am

2 stops11h 13m

Greater Peoria

Mon 3/30

5:25 pm-10:59 pm

1 stop7h 34m

$513

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Thu 4/30

10:40 pm-12:57 pm

1 stop12h 17m

Greater Peoria

Sun 5/3

5:30 pm-10:39 pm

1 stop7h 09m

$587

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Tue 3/24

10:15 pm-12:43 pm

2 stops12h 28m

Greater Peoria

Sat 3/28

5:25 pm-10:37 pm

1 stop7h 12m

$638
Quickest round-trip

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Sat 3/28

1:37 pm-11:51 pm

1 stop8h 14m

Greater Peoria

Wed 4/1

5:22 pm-10:23 pm

1 stop7h 01m

$653

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Sat 3/28

6:15 am-4:40 pm

2 stops8h 25m

Greater Peoria

Wed 4/1

10:40 am-6:05 pm

2 stops9h 25m

$690

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/10

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Compare providers for flights from San Diego to Peoria

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Diego to Peoria in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Diego-Peoria, Illinois flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Peoria, Illinois flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-Peoria, Illinois flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Diego-Peoria, Illinois flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Diego-Peoria, Illinois flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 $173). Flying from San Diego to Peoria, Illinois in January is currently the most expensive (average of $342). 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.

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 March 13, 2026.
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
9,418 reviews

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

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
9,418 reviews
United Airlines
7.4
Good
9,418 reviews

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

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
7.1
Good
11,446 reviews
United Airlines
7.4
Good
9,418 reviews

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

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.

  • How long is the flight from San Diego to Peoria, Illinois?

    United Airlines can get you from San Diego to Peoria, Illinois in just under 8h 24m. Your travel time can differ by up to . San Diego and Peoria, Illinois are separated by a distance of 1610 mi.

  • 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 $288 on this airline. An additional option worth looking into is United Airlines, starting at $288. You may be able to fly from San Diego to Peoria, Illinois for 25% 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 $173). Flying from San Diego to Peoria, Illinois in January is currently the most expensive (average of $342). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Diego to Peoria

See prices for flight routes from nearby airports that may be better suited for you.
San Francisco to O'Hare Intl flights
Los Angeles to O'Hare Intl flights
Ontario to O'Hare Intl flights
Santa Ana to O'Hare Intl flights
Los Angeles to Midway flights
Burbank to O'Hare Intl flights
San Diego to O'Hare Intl flights
Sacramento to O'Hare Intl flights
San Francisco to Midway flights
San Jose to O'Hare Intl flights
Oakland to O'Hare Intl flights
Las Vegas to O'Hare Intl flights
Los Angeles to St. Louis flights
Las Vegas to Midway flights
Sacramento to Midway flights
Santa Ana to Midway flights
San Diego to Midway flights
San Francisco to St. Louis flights
Oakland to Midway flights
Palm Springs to O'Hare Intl flights
Fresno to O'Hare Intl flights
San Jose to Midway flights
Long Beach to O'Hare Intl flights
Ontario to St. Louis flights
Las Vegas to St. Louis flights
San Diego to St. Louis flights
Sacramento to St. Louis flights
Reno to O'Hare Intl flights
Long Beach to Midway flights
Burbank to Midway flights
Ontario to Midway flights
Santa Ana to St. Louis flights
Palm Springs to Midway flights
Oakland to St. Louis flights
Santa Barbara to O'Hare Intl flights
San Francisco to Rockford flights
San Jose to St. Louis flights
Burbank to St. Louis flights
Fresno to Midway flights
Reno to Midway flights
Los Angeles to Moline flights
Long Beach to St. Louis flights
Bakersfield to O'Hare Intl flights
San Luis Obispo to O'Hare Intl flights
Medford to O'Hare Intl flights
Ontario to Moline flights
Monterey to O'Hare Intl flights
Palm Springs to St. Louis flights
San Francisco to Decatur flights
Santa Rosa to O'Hare Intl flights

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 March 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$288Average$485FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$430FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights