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Petersburg

$960+ Cheap flights from Illinois to Petersburg, AK (PSG)

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 7/25. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PSG
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Illinois to Petersburg

Keep the following information in mind while searching for Illinois to Petersburg flight deals. Data was last updated June 12, 2025.

Round-trip from

$1,052
(Alaska Airlines)

One-way from

$960
(Alaska Airlines)
From Illinois to Petersburg
Search Deals
One-way flight from Illinois to Petersburg
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Find flight deals from Illinois to Petersburg

Cheapest flights from Illinois to Petersburg
Explore the most affordable flight options available from Illinois to Petersburg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/258:42 pmORD - PSG
1 stop17h 02mAlaska Airlines
Fri 8/111:29 amPSG - ORD
1 stop15h 55mAlaska Airlines
Deal found 6/10$1,052

Cheapflights Fare Finder

Customize your flight search to find flights from Illinois to 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 June 12, 2025.
Use the filters below to find and compare flights from Illinois to Petersburg that are best for you.

Fly from

Illinois

Fly to

Petersburg

Route

Depart

Return

Price

ChicagoPetersburg

ORD - PSG

ORDPSG

Chicago O'Hare Intl

Fri 7/25

8:42 pm-10:44 am

1 stop17h 02m

Petersburg

Fri 8/1

11:29 am-6:24 am

1 stop15h 55m

$1,052

ChicagoPetersburg

ORD - PSG

ORDPSG

Chicago O'Hare Intl

Fri 7/25

1:03 pm-10:44 am

2 stops24h 41m

$960

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Best time to book a flight from Illinois to Petersburg

Have a flexible travel schedule? Discover the best time to fly to 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 Petersburg

Rainfall in Petersburg by month

Plan your trip to Petersburg by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Petersburg, Alaska ranges from 5.1 - 16.3 inches per month. October is typically the wettest month, when rainfall can reach 16.3 in. June is typically the driest time to visit Petersburg, Alaska when rainfall is around 5.1 in.

Temperature in Petersburg by month

Plan your trip to Petersburg by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Petersburg, Alaska, 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 55.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.6 F).

Reviews of airlines servicing Petersburg

Get insights into the airlines that provide service to Petersburg. 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 Petersburg. Reviews last updated June 12, 2025.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Illinois to 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 Petersburg from Illinois?

    If you book a flight to Petersburg from Illinois, you will be flying to Petersburg, which is the city’s only airport. Petersburg (PSG) is located 1.0 mi from the center of Petersburg.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois to 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.

See more FAQs

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