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

American Airlines and United Airlines can get you from San Diego to Peoria, Illinois in just under 8h 12m. Your travel time can differ by up to 3h 13m. San Diego and Peoria, Illinois are separated by a distance of 1610 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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 32% less than the average price by searching for these airlines.

In terms of precipitation, rainfall in Peoria, Illinois ranges from 1.8 - 4.3 inches per month. May is typically the wettest month, when rainfall can reach 4.3 in. January is typically the driest time to visit Peoria, Illinois when rainfall is around 1.8 in.

If weather is an important factor for your trip to Peoria, Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

What is the cheapest time of day to fly from SAN to PIA?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Diego to Peoria, Illinois as you normally would.

Most accurate provider : When it comes to deals on San Diego-Peoria, Illinois flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Diego-Peoria, Illinois flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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.

$289+ Flights from San Diego to Peoria, IL

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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 December 12, 2025.

Wed 12/3110:57 amSAN - PIA

1 stop28h 23mMultiple Airlines

Sun 1/48:48 pmPIA - SAN

1 stop18h 27mMultiple Airlines

Deal found 12/10

$373

Wed 12/3110:57 amSAN - PIA

1 stop28h 23mMultiple Airlines

Sat 1/39:49 pmPIA - SAN

1 stop16h 22mMultiple Airlines

Deal found 12/10

$436

Mon 12/297:00 amSAN - PIA

1 stop7h 43mUnited Airlines

Fri 1/23:30 pmPIA - SAN

2 stops9h 02mUnited Airlines

Deal found 12/10

$534

Wed 12/314:10 pmSAN - PIA

2 stops19h 58mUnited Airlines

Sun 1/45:19 pmPIA - SAN

2 stops19h 11mUnited Airlines

Deal found 12/10

$562

Fri 12/267:00 amSAN - PIA

1 stop7h 43mUnited Airlines

Tue 12/308:35 amPIA - SAN

1 stop8h 26mUnited Airlines

Deal found 12/11

$604

Wed 12/315:40 pmSAN - PIA

3 stops18h 28mUnited Airlines

Sat 1/35:19 pmPIA - SAN

1 stop18h 25mUnited Airlines

Deal found 12/10

$681

Best flights from San Diego to Peoria
Discover carefully curated flight deals from San Diego to Peoria that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

Fri 1/166:20 amSAN - PIA

1 stop8h 12mAmerican Airlines

Thu 1/227:39 amPIA - SAN

1 stop7h 29mAmerican Airlines

Deal found 12/10

$289

Mon 1/58:45 pmSAN - PIA

2 stops11h 25mUnited Airlines

Sun 1/118:35 amPIA - SAN

1 stop8h 29mUnited Airlines

Deal found 12/11

$314

Thu 1/19:14 pmSAN - PIA

1 stop12h 16mMultiple Airlines

Sun 1/48:48 pmPIA - SAN

1 stop18h 27mMultiple Airlines

Deal found 12/10

$394

Thu 1/81:00 pmSAN - PIA

1 stop5h 47mUnited Airlines

Mon 1/125:18 pmPIA - SAN

1 stop7h 15mUnited Airlines

Deal found 12/9

$379

Wed 12/3110:57 amSAN - PIA

2 stops26h 48mMultiple Airlines

Sun 1/48:48 pmPIA - SAN

1 stop18h 27mMultiple Airlines

Deal found 12/10

$394

Fri 1/167:00 amSAN - PIA

1 stop7h 43mUnited Airlines

Thu 1/2210:45 amPIA - SAN

2 stops9h 51mUnited Airlines

Deal found 12/10

$384

Last-minute flights from San Diego to Peoria
Discover last-minute flight deals from San Diego to Peoria. Data last updated December 12, 2025 and is based on user searches.

Wed 12/3110:57 amSAN - PIA

1 stop28h 23mMultiple Airlines

Sun 1/48:48 pmPIA - SAN

1 stop18h 27mMultiple Airlines

Deal found 12/10

$373

Thu 1/19:14 pmSAN - PIA

1 stop12h 16mMultiple Airlines

Sun 1/48:48 pmPIA - SAN

1 stop18h 27mMultiple Airlines

Deal found 12/10

$393

Mon 1/58:45 pmSAN - PIA

2 stops11h 25mUnited Airlines

Sun 1/118:35 amPIA - SAN

1 stop8h 29mUnited Airlines

Deal found 12/11

$314

Mon 1/53:03 pmSAN - PIA

1 stop6h 28mAmerican Airlines

Sun 1/115:16 pmPIA - SAN

1 stop7h 10mAmerican Airlines

Deal found 12/11

$329

Thu 1/81:00 pmSAN - PIA

1 stop5h 47mUnited Airlines

Mon 1/125:18 pmPIA - SAN

1 stop7h 15mUnited Airlines

Deal found 12/9

$379

Fri 1/166:20 amSAN - PIA

1 stop8h 12mAmerican Airlines

Thu 1/227:39 amPIA - SAN

1 stop7h 29mAmerican Airlines

Deal found 12/10

$289

One-way flights from San Diego to Peoria
Search for one-way flight options from San Diego to Peoria. Find affordable one-way fares based on user searches. Data last updated December 12, 2025.

Sun 1/44:10 pmSAN - PIA

2 stops18h 10mUnited Airlines

Deal found 12/10

$413

Find flight deals from San Diego to Peoria

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$289 (American Airlines)
Popular in	December
Cheapest in	November
Average price	$626

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

Highest demand for flights based on searches. 0% potential increase in price ($3 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($19 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Fri 1/16

6:20 am-4:32 pm

1 stop8h 12m

Greater Peoria

Thu 1/22

7:39 am-1:08 pm

1 stop7h 29m

$289

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Mon 1/5

8:45 pm-10:10 am

2 stops11h 25m

Greater Peoria

Sun 1/11

8:35 am-3:04 pm

1 stop8h 29m

$314

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Thu 1/8

1:00 pm-8:47 pm

1 stop5h 47m

Greater Peoria

Mon 1/12

5:18 pm-10:33 pm

1 stop7h 15m

$379

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Fri 1/16

7:00 am-4:43 pm

1 stop7h 43m

Greater Peoria

Thu 1/22

10:45 am-6:36 pm

2 stops9h 51m

$384

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Thu 1/1

9:14 pm-11:30 am

1 stop12h 16m

Greater Peoria

Sun 1/4

8:48 pm-1:15 pm

1 stop18h 27m

$394

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Wed 12/31

10:57 am-3:45 pm

2 stops26h 48m

Greater Peoria

Sun 1/4

8:48 pm-1:15 pm

1 stop18h 27m

$394

San DiegoPeoria

SAN - PIA

SANPIA

San Diego

Sun 1/4

4:10 pm-12:20 pm

2 stops18h 10m

$413

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Compare providers for flights from San Diego to Peoria

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 December.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*1 star
Expedia	Price Accuracy2 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Diego-Peoria, Illinois flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 September is currently the most expensive (average of $299). 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

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

9,095 reviews

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

9,095 reviews

United Airlines

7.4

Good

9,095 reviews

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

11,050 reviews

United Airlines

7.4

Good

9,095 reviews

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

How long is the flight from San Diego to Peoria, Illinois?
American Airlines and United Airlines can get you from San Diego to Peoria, Illinois in just under 8h 12m. Your travel time can differ by up to 3h 13m. San Diego and Peoria, Illinois are separated by a distance of 1610 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
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 32% 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 September is currently the most expensive (average of $299). 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

Top 2 airlines flying from San Diego to Peoria

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$288	Average$512	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$288	Average$462	FlexibilityNo cancel fee	On-time71%

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$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 1/16. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Diego to Peoria with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from San Diego to Peoria

Cheapest flights from San Diego to PeoriaExplore 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 December 12, 2025.

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 December 12, 2025.

Find flight deals from San Diego to Peoria

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

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 December.

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.

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?

Reviews of airlines servicing Peoria

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.

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?

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

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

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

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

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

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.

Top 2 airlines flying from San Diego to Peoria

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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 December 12, 2025.