How do I get Price Alerts for flights from Illinois to Petersburg, Alaska?

Price Alerts will notify you by email when the price for flights to Petersburg, Alaska from Illinois decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

How can I save money on flights from Illinois to Petersburg, Alaska with momondo?

By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

How does momondo find its flight prices?

We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

When did momondo last update prices for flights from Illinois to Petersburg Airport?

Prices for flights from Illinois to Petersburg Airport are updated daily.

How old do you have to be to fly from Illinois to Petersburg Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Petersburg Airport.

What documentation or ID do you need to fly to Petersburg Airport?

The required travel and health documents for your Petersburg Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Petersburg Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$761 Cheap Flights from Illinois to Petersburg in 2026

1 adult

0 bags

Find the cheapest flights from Illinois to Petersburg

Round-trip

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:44 pm - 10:41 am

ORD

PSG

19h 57m

3 stops

11:23 am - 6:20 am

PSG

ORD

15h 57m

2 stops

$828Alaska Airlines

Wed, May 27 - Fri, May 29

5:44 pm - 10:41 am

ORD

PSG

19h 57m

3 stops

3:26 pm - 6:20 am

PSG

ORD

35h 54m

3 stops

$831Alaska Airlines

Wed, May 27 - Fri, May 29

5:44 pm - 2:44 pm

ORD

PSG

24h 00m

2 stops

11:23 am - 2:32 pm

PSG

ORD

24h 09m

2 stops

$856Alaska Airlines

Wed, May 27 - Fri, May 29

6:00 am - 2:44 pm

ORD

PSG

35h 44m

3 stops

11:23 am - 6:20 am

PSG

ORD

15h 57m

2 stops

$858Alaska Airlines

Wed, May 27 - Fri, May 29

6:00 am - 2:44 pm

ORD

PSG

35h 44m

3 stops

3:26 pm - 11:59 pm

PSG

ORD

29h 33m

3 stops

$861Alaska Airlines

Wed, May 27 - Fri, May 29

7:49 pm - 2:44 pm

ORD

PSG

21h 55m

2 stops

11:23 am - 6:20 am

PSG

ORD

15h 57m

2 stops

$866Alaska Airlines

Wed, May 27 - Fri, May 29

6:00 am - 2:44 pm

ORD

PSG

35h 44m

3 stops

11:23 am - 6:20 am

PSG

ORD

15h 57m

2 stops

$868Alaska Airlines

Wed, May 27 - Fri, May 29

6:00 am - 2:44 pm

ORD

PSG

35h 44m

3 stops

3:26 pm - 2:32 pm

PSG

ORD

20h 06m

3 stops

$876Alaska Airlines

Wed, May 27 - Fri, May 29

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Alaska Airlines flights from Illinois to Petersburg, Alaska

Our best Alaska Airlines deals on Illinois to Petersburg, Alaska flight tickets

Alaska Airlines

May 27

ORD5:44 pmChicago O'Hare Intl

19h 57m

3 stops

PSG10:41 amPetersburg

May 29

PSG11:23 amPetersburg

15h 57m

2 stops

ORD6:20 amChicago O'Hare Intl

$828

Alaska Airlines

May 27

ORD5:44 pmChicago O'Hare Intl

19h 57m

3 stops

PSG10:41 amPetersburg

May 29

PSG3:26 pmPetersburg

35h 54m

3 stops

ORD6:20 amChicago O'Hare Intl

$831

Alaska Airlines

May 27

ORD5:44 pmChicago O'Hare Intl

24h 00m

2 stops

PSG2:44 pmPetersburg

May 29

PSG11:23 amPetersburg

24h 09m

2 stops

ORD2:32 pmChicago O'Hare Intl

$856

momondo Fare Finder

Use the filters below to find and compare flights from Illinois to Petersburg, Alaska that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

ChicagoPetersburg

ORD - PSG

ORDPSG

Chicago O'Hare Intl

Wed 5/27

5:44 pm-10:41 am

3 stops19h 57m

Petersburg

Fri 5/29

11:23 am-6:20 am

2 stops15h 57m

$828

ChicagoPetersburg

ORD - PSG

ORDPSG

Chicago O'Hare Intl

Wed 5/27

5:44 pm-10:41 am

3 stops19h 57m

Petersburg

Fri 5/29

3:26 pm-6:20 am

3 stops35h 54m

$831

ChicagoPetersburg

ORD - PSG

ORDPSG

Chicago O'Hare Intl

Wed 5/27

5:44 pm-2:44 pm

2 stops24h 00m

Petersburg

Fri 5/29

11:23 am-2:32 pm

2 stops24h 09m

$856

ChicagoPetersburg

ORD - PSG

ORDPSG

Chicago O'Hare Intl

Wed 5/27

6:00 am-2:44 pm

3 stops35h 44m

Petersburg

Fri 5/29

11:23 am-6:20 am

2 stops15h 57m

$858

ChicagoPetersburg

ORD - PSG

ORDPSG

Chicago O'Hare Intl

Wed 5/27

6:00 am-2:44 pm

3 stops35h 44m

Petersburg

Fri 5/29

3:26 pm-11:59 pm

3 stops29h 33m

$861

ChicagoPetersburg

ORD - PSG

ORDPSG

Chicago O'Hare Intl

Wed 5/27

7:49 pm-2:44 pm

2 stops21h 55m

Petersburg

Fri 5/29

11:23 am-6:20 am

2 stops15h 57m

$866

ChicagoPetersburg

ORD - PSG

ORDPSG

Chicago O'Hare Intl

Wed 5/27

6:00 am-2:44 pm

3 stops35h 44m

Petersburg

Fri 5/29

11:23 am-6:20 am

2 stops15h 57m

$868

ChicagoPetersburg

ORD - PSG

ORDPSG

Chicago O'Hare Intl

Wed 5/27

6:00 am-2:44 pm

3 stops35h 44m

Petersburg

Fri 5/29

3:26 pm-2:32 pm

3 stops20h 06m

$876

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Illinois to Petersburg, Alaska flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Petersburg, Alaska

Fastest flight time	21h 55m
Direct flights	None

The fastest flight from Illinois to Petersburg, Alaska takes 21h 55m

There are no direct flights from Illinois to Petersburg, Alaska. There are no popular flight routes from Illinois to Petersburg, Alaska.

Search flight deals

Frequently asked questions about flying from Illinois to Petersburg, Alaska

When did momondo last update prices for flights from Illinois to Petersburg Airport?
Prices for flights from Illinois to Petersburg Airport are updated daily.
How old do you have to be to fly from Illinois to Petersburg Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Petersburg Airport.
What documentation or ID do you need to fly to Petersburg Airport?
The required travel and health documents for your Petersburg Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Petersburg Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Frequently asked questions about flying from Illinois to Petersburg, Alaska

How do I get Price Alerts for flights from Illinois to Petersburg, Alaska?
Price Alerts will notify you by email when the price for flights to Petersburg, Alaska from Illinois decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.
How can I save money on flights from Illinois to Petersburg, Alaska with momondo?
By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.
How does momondo find its flight prices?
We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Petersburg?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Illinois to Petersburg. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Illinois to Petersburg with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Illinois to Petersburg flights to just show those with flexible booking policies.

How can momondo help me find flights from Illinois to Petersburg?

Once you have performed a search for Illinois to Petersburg flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Illinois to Petersburg right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Illinois to Petersburg flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.