HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Petersburg

$680+ Cheap flights from O'Hare Intl (ORD) to Petersburg, AK (PSG)

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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PSG
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from O'Hare Intl to Petersburg with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from O'Hare Intl to Petersburg

Best flights from O'Hare Intl to Petersburg
Discover carefully curated flight deals from O'Hare Intl to Petersburg that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 6, 2025.

This Alaska Airlines deal was found by Cheapflights users on 11/4. 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.
Mon 3/97:45 amORD - PSG
3 stops30h 06mAlaska Airlines
Wed 3/1111:40 amPSG - ORD
2 stops14h 24mAlaska Airlines
Deal found 11/4$680

Cheap flight deals from O'Hare Intl to Petersburg

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Petersburg (PSG). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 6, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$680
(Alaska Airlines)
Provider with most accurate pricing for Chicago O'Hare Intl-Petersburg flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Petersburg flights.
Search Deals
From Chicago O'Hare Intl to Petersburg
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl 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 November 6, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Petersburg that are best for you.

Fly from

O'Hare Intl

Fly to

Petersburg

Route

Depart

Return

Price

ChicagoPetersburg

ORD - PSG

ORDPSG

Chicago O'Hare Intl

Mon 3/9

7:45 am-10:51 am

3 stops30h 06m

Petersburg

Wed 3/11

11:40 am-5:04 am

2 stops14h 24m

$680

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

  • Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-Petersburg, Alaska flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago O'Hare Intl Airport-Petersburg, Alaska flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Petersburg, Alaska flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Petersburg, Alaska flights, Cheapflights users trust FlightHub the most. FlightHub 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 Chicago O'Hare Intl Airport-Petersburg, Alaska 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 O'Hare Intl to Petersburg

Have a flexible travel schedule? Discover the best time to fly to Petersburg from O'Hare Intl 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.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl 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 Chicago O'Hare Intl?

    If you book a flight to Petersburg from Chicago O'Hare Intl, 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. There are 0 flights from Chicago O'Hare Intl to Petersburg per day from 0 different airlines.

  • How long is the flight from Chicago O'Hare Intl Airport to Petersburg, Alaska?

    For as low as $680, Alaska Airlines can have you in Petersburg, Alaska from Chicago O'Hare Intl Airport in 30h 06m. Airlines will cover a distance of 2215 mi.

  • Can I find deals for flights from O'Hare Intl to Petersburg that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Petersburg flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Petersburg?

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

  • Can I find deals for business class flights from O'Hare Intl to Petersburg?

    Yes. Cheapflights offers flight deals from O'Hare Intl 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

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.