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St Petersburg

$70+ Cheap flights from Illinois to Tampa (PIE)

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 1/31. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PIE
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Cheap flight deals from Illinois to St Petersburg

Cheapest flights from Illinois to St Petersburg
Explore the most affordable flight options available from Illinois to St Petersburg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

This Gotogate deal was found by Cheapflights users on 12/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/232:36 pmMLI - PIE
Nonstop2h 32mAllegiant Air
Tue 12/3012:06 pmPIE - MLI
Nonstop2h 40mAllegiant Air
Deal found 12/21$170
This Kiwi.com deal was found by Cheapflights users on 12/21. 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.
Wed 12/315:39 pmRFD - PIE
Nonstop2h 40mAllegiant Air
Fri 1/95:00 pmPIE - RFD
Nonstop2h 48mAllegiant Air
Deal found 12/21$205
This Kiwi.com deal was found by Cheapflights users on 12/22. 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.
Wed 12/247:37 pmBMI - PIE
Nonstop2h 21mAllegiant Air
Mon 12/295:56 pmPIE - BMI
Nonstop2h 31mAllegiant Air
Deal found 12/22$211
This Kiwi.com deal was found by Cheapflights users on 12/22. 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.
Wed 12/247:37 pmBMI - PIE
Nonstop2h 21mAllegiant Air
Wed 12/315:14 pmPIE - BMI
Nonstop2h 33mAllegiant Air
Deal found 12/22$218
This Kiwi.com deal was found by Cheapflights users on 12/21. 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.
Tue 12/232:36 pmMLI - PIE
Nonstop2h 32mAllegiant Air
Sun 12/286:20 amPIE - MLI
Nonstop2h 37mAllegiant Air
Deal found 12/21$226
This Kiwi.com deal was found by Cheapflights users on 12/21. 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.
Sun 12/216:13 pmMLI - PIE
Nonstop2h 32mAllegiant Air
Sun 12/286:20 amPIE - MLI
Nonstop2h 37mAllegiant Air
Deal found 12/21$252
This Kiwi.com deal was found by Cheapflights users on 12/20. 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.
Mon 12/2210:01 amPIA - PIE
Nonstop2h 20mAllegiant Air
Thu 1/84:11 pmPIE - PIA
Nonstop2h 37mAllegiant Air
Deal found 12/20$269
This Kiwi.com deal was found by Cheapflights users on 12/21. 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.
Sun 12/216:13 pmMLI - PIE
Nonstop2h 32mAllegiant Air
Tue 12/2312:06 pmPIE - MLI
Nonstop2h 40mAllegiant Air
Deal found 12/21$269
This Booking.com deal was found by Cheapflights users on 12/22. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:39 pmRFD - PIE
Nonstop2h 40mAllegiant Air
Mon 12/296:20 amPIE - RFD
Nonstop2h 40mAllegiant Air
Deal found 12/22$270
This Gotogate deal was found by Cheapflights users on 12/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:39 pmRFD - PIE
Nonstop2h 40mAllegiant Air
Wed 12/313:07 pmPIE - RFD
Nonstop2h 42mAllegiant Air
Deal found 12/21$277
This Mytrip deal was found by Cheapflights users on 12/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/222:57 pmRFD - PIE
Nonstop2h 36mAllegiant Air
Mon 12/296:20 amPIE - RFD
Nonstop2h 40mAllegiant Air
Deal found 12/20$287
This Booking.com deal was found by Cheapflights users on 12/22. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:39 pmRFD - PIE
Nonstop2h 40mAllegiant Air
Sat 12/276:30 amPIE - RFD
Nonstop2h 42mAllegiant Air
Deal found 12/22$314

Find flight deals from Illinois to St Petersburg

Keep the following information in mind while searching for Illinois to St Petersburg flight deals. Data was last updated December 23, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$70
(Booking.com)

Popular in

December

Cheapest in

January

Average price

$311
Provider with most accurate pricing for Chicago (CHI)-Tampa flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Tampa flights.
Search Deals
From Illinois to Tampa St. Petersburg
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($34 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to St Petersburg 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 December 23, 2025.
Use the filters below to find and compare flights from Illinois to Tampa that are best for you.

Fly from

Illinois

Fly to

St Petersburg

Route

Depart

Return

Price

MolineTampa

MLI - PIE

MLIPIE

Moline Quad-City

Sat 1/31

12:36 pm-4:21 pm

Nonstop2h 45m

Tampa St. Petersburg

Sat 2/7

10:00 am-11:46 am

Nonstop2h 46m

$70

BloomingtonTampa

BMI - PIE

BMIPIE

Bloomington-Normal

Mon 1/12

7:58 pm-11:22 pm

Nonstop2h 24m

Tampa St. Petersburg

Mon 1/26

5:32 pm-7:08 pm

Nonstop2h 36m

$91

BloomingtonTampa

BMI - PIE

BMIPIE

Bloomington-Normal

Mon 1/19

7:58 pm-11:22 pm

Nonstop2h 24m

Tampa St. Petersburg

Mon 1/26

5:32 pm-7:08 pm

Nonstop2h 36m

$91

PeoriaTampa

PIA - PIE

PIAPIE

Greater Peoria

Sun 1/11

6:38 pm-10:05 pm

Nonstop2h 27m

Tampa St. Petersburg

Tue 1/13

10:00 am-11:37 am

Nonstop2h 37m

$98

MolineTampa

MLI - PIE

MLIPIE

Moline Quad-City

Sat 1/10

12:36 pm-4:21 pm

Nonstop2h 45m

Tampa St. Petersburg

Sat 1/17

10:00 am-11:46 am

Nonstop2h 46m

$98

BloomingtonTampa

BMI - PIE

BMIPIE

Bloomington-Normal

Mon 1/5

8:09 pm-11:28 pm

Nonstop2h 19m

Tampa St. Petersburg

Mon 1/12

5:32 pm-7:08 pm

Nonstop2h 36m

$110

BloomingtonTampa

BMI - PIE

BMIPIE

Bloomington-Normal

Fri 2/6

7:58 pm-11:22 pm

Nonstop2h 24m

Tampa St. Petersburg

Mon 2/9

5:32 pm-7:08 pm

Nonstop2h 36m

$112

MolineTampa

MLI - PIE

MLIPIE

Moline Quad-City

Sat 2/7

12:36 pm-4:21 pm

Nonstop2h 45m

Tampa St. Petersburg

Thu 2/12

6:10 am-8:00 am

Nonstop2h 50m

$121

BloomingtonTampa

BMI - PIE

BMIPIE

Bloomington-Normal

Mon 1/26

7:58 pm-11:22 pm

Nonstop2h 24m

Tampa St. Petersburg

Mon 2/2

5:32 pm-7:08 pm

Nonstop2h 36m

$130

ChicagoTampa

RFD - PIE

RFDPIE

Chicago Greater Rockford

Fri 1/30

7:38 pm-11:18 pm

Nonstop2h 40m

Tampa St. Petersburg

Mon 2/2

5:00 pm-6:48 pm

Nonstop2h 48m

$135

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/23

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to St Petersburg

Have a flexible travel schedule? Discover the best time to fly to St Petersburg from Illinois 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 Illinois to Tampa

What is the cheapest month to book a flight from Illinois to Tampa?

Currently, March is the cheapest month in which you can book a flight from Illinois to Tampa (average of $42). Flying from Illinois to Tampa in December is currently the most expensive (average of $89). 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.

What is the cheapest time of day to fly from IL to PIE?

Find hourly flight availability from Illinois to St Petersburg. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 23, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 45% on flights from Illinois to Tampa by exploring options for tickets in the evening.

What is the cheapest day to fly from Illinois to Tampa?

Use this chart to determine the cheapest time to fly round-trip from Illinois to St Petersburg. Price data was last updated on December 20, 2025.

Travelers seeking maximum savings on their Illinois to Tampa flight should consider departing on Saturday mornings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

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

  • What airport do you fly into for flights to Tampa from Illinois?

    For a flight from Illinois to Tampa, you will be flying into St. Petersburg. Tampa St. Petersburg (PIE) is just 14.4 mi from the center of the city.

  • How long is the flight from Illinois to Tampa?

    Allegiant Air can get you from Illinois to Tampa in just under 2h 45m. Your travel time will be generally consistent. The distance from Illinois to Tampa is about 1034 mi. Most flights are nonstop.

  • What are the most popular routes from Illinois to Tampa?

    The most popular flight routes from Illinois to Tampa are Chicago Greater Rockford - Tampa St. Petersburg, Moline Quad-City - Tampa St. Petersburg and Chicago O'Hare Intl - Tampa St. Petersburg.

  • Can I find deals for flights from Illinois to St Petersburg that include hotel bookings?

    Yes. In addition to deals on Illinois to St Petersburg flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to St Petersburg?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to St Petersburg.

  • Can I find deals for business class flights from Illinois to St Petersburg?

    Yes. Cheapflights offers flight deals from Illinois to St Petersburg 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 Illinois to Tampa?

    Currently, March is the cheapest month in which you can book a flight from Illinois to Tampa (average of $42). Flying from Illinois to Tampa in December is currently the most expensive (average of $89). 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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Alternative routes for Illinois to St Petersburg

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Illinois to St Petersburg

Discover the top 4 airlines that operate flights from Illinois to St Petersburg. 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 December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$56Average$203FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$80Average$172FlexibilityNo cancel feeOn-time88%
DeltaCheapest$258Average$328FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$293Average$413FlexibilityNo cancel feeOn-time69%

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