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.

$395 Cheap Flights from Illinois to Petersburg, Alaska in 2026

Find the cheapest flights from Illinois to Petersburg

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 12:03 pm

ORD

PSG

32h 03m

3 stops

3:08 pm - 5:40 am

PSG

ORD

35h 32m

3 stops

$787Alaska Airlines

Sat, Oct 31 - Mon, Nov 2

9:00 am - 3:26 pm

ORD

PSG

33h 26m

2 stops

3:08 pm - 11:57 pm

PSG

ORD

29h 49m

3 stops

$794Alaska Airlines

Sat, Oct 31 - Mon, Nov 2

3:49 pm - 3:26 pm

ORD

PSG

26h 37m

2 stops

11:45 am - 5:40 am

PSG

ORD

14h 55m

2 stops

$801Alaska Airlines

Sat, Oct 31 - Mon, Nov 2

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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

Oct 31

ORD7:00 amChicago O'Hare Intl

32h 03m

3 stops

PSG12:03 pmPetersburg

Nov 2

PSG3:08 pmPetersburg

35h 32m

3 stops

ORD5:40 amChicago O'Hare Intl

$787

Alaska Airlines

Oct 31

ORD9:00 amChicago O'Hare Intl

33h 26m

2 stops

PSG3:26 pmPetersburg

Nov 2

PSG3:08 pmPetersburg

29h 49m

3 stops

ORD11:57 pmChicago O'Hare Intl

$794

Alaska Airlines

Oct 31

ORD3:49 pmChicago O'Hare Intl

26h 37m

2 stops

PSG3:26 pmPetersburg

Nov 2

PSG11:45 amPetersburg

14h 55m

2 stops

ORD5:40 amChicago O'Hare Intl

$801

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

ChicagoPetersburg

ORD - PSG

ORDPSG

Chicago O'Hare Intl

Sat 10/31

7:00 am-12:03 pm

3 stops32h 03m

Petersburg

Mon 11/2

3:08 pm-5:40 am

3 stops35h 32m

$787

ChicagoPetersburg

ORD - PSG

ORDPSG

Chicago O'Hare Intl

Sat 10/31

9:00 am-3:26 pm

2 stops33h 26m

Petersburg

Mon 11/2

3:08 pm-11:57 pm

3 stops29h 49m

$794

Quickest round-trip

ChicagoPetersburg

ORD - PSG

ORDPSG

Chicago O'Hare Intl

Sat 10/31

3:49 pm-3:26 pm

2 stops26h 37m

Petersburg

Mon 11/2

11:45 am-5:40 am

2 stops14h 55m

$801

Cheapest one-way

Quickest one-way

ChicagoPetersburg

ORD - PSG

ORDPSG

Chicago O'Hare Intl

Wed 9/9

7:00 pm-10:53 am

1 stop18h 53m

$395

ChicagoPetersburg

ORD - PSG

ORDPSG

Chicago O'Hare Intl

Wed 9/9

7:00 pm-10:53 am

3 stops18h 53m

$398

ChicagoPetersburg

ORD - PSG

ORDPSG

Chicago O'Hare Intl

Wed 9/9

1:03 pm-10:53 am

2 stops24h 50m

$399

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Illinois to Petersburg, Alaska

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Illinois to Petersburg?

Alaska Airlines is the most popular carrier operating from Illinois to Petersburg

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	32h 03m
Direct flights	None

The fastest flight from Illinois to Petersburg, Alaska takes 32h 03m

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.

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.