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$417+ Cheap flights from Pocatello (PIH) to Illinois

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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
PIH — ORD
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Pocatello to Illinois

Keep the following information in mind while searching for Pocatello to Illinois flight deals. Data was last updated September 11, 2025.

Round-trip from

$417
(Delta)
From Pocatello to Illinois
Search Deals

Find flight deals from Pocatello to Illinois

Cheapest flights from Pocatello to Illinois
Explore the most affordable flight options available from Pocatello to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/211:00 pmPIH - STL
1 stop4h 40mDelta
Sun 10/266:50 amSTL - PIH
1 stop6h 28mDelta
Deal found 9/11$417
This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/261:15 pmPIH - ORD
1 stop7h 42mDelta
Tue 9/307:55 amORD - PIH
1 stop5h 34mDelta
Deal found 9/11$627
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/251:15 pmPIH - ORD
1 stop7h 42mDelta
Mon 9/297:55 amORD - PIH
1 stop5h 34mDelta
Deal found 9/10$673
This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/91:00 pmPIH - STL
1 stop4h 57mDelta
Fri 11/146:50 amSTL - PIH
1 stop6h 30mDelta
Deal found 9/9$677
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/91:00 pmPIH - ORD
1 stop7h 43mDelta
Tue 10/147:50 amORD - PIH
1 stop5h 28mDelta
Deal found 9/10$803

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pocatello to Illinois 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 September 11, 2025.
Use the filters below to find and compare flights from Pocatello to Illinois that are best for you.

Fly from

Pocatello

Fly to

Illinois

Route

Depart

Return

Price

PocatelloSt. Louis

PIH - STL

PIHSTL

Pocatello

Tue 11/11

1:00 pm-6:57 pm

1 stop4h 57m

Lambert-St Louis

Sun 11/16

6:50 am-12:20 pm

1 stop6h 30m

$417

PocatelloSt. Louis

PIH - STL

PIHSTL

Pocatello

Tue 10/21

1:00 pm-6:40 pm

1 stop4h 40m

Lambert-St Louis

Sun 10/26

6:50 am-12:18 pm

1 stop6h 28m

$417

PocatelloSt. Louis

PIH - STL

PIHSTL

Pocatello

Thu 9/25

1:15 pm-11:24 pm

2 stops9h 09m

Lambert-St Louis

Sun 9/28

7:40 am-12:29 pm

1 stop5h 49m

$592

PocatelloChicago

PIH - ORD

PIHORD

Pocatello

Fri 9/26

1:15 pm-9:57 pm

1 stop7h 42m

Chicago O'Hare Intl

Tue 9/30

7:55 am-12:29 pm

1 stop5h 34m

$627

PocatelloChicago

PIH - ORD

PIHORD

Pocatello

Thu 9/25

1:15 pm-9:57 pm

1 stop7h 42m

Chicago O'Hare Intl

Mon 9/29

7:55 am-12:29 pm

1 stop5h 34m

$673

PocatelloSt. Louis

PIH - STL

PIHSTL

Pocatello

Sun 11/9

1:00 pm-6:57 pm

1 stop4h 57m

Lambert-St Louis

Fri 11/14

6:50 am-12:20 pm

1 stop6h 30m

$677

PocatelloChicago

PIH - ORD

PIHORD

Pocatello

Thu 10/9

1:00 pm-9:43 pm

1 stop7h 43m

Chicago O'Hare Intl

Tue 10/14

7:50 am-12:18 pm

1 stop5h 28m

$803

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Best time to book a flight from Pocatello to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Pocatello 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 Pocatello to Illinois

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

Currently, August is the cheapest month in which you can book a flight from Pocatello to Illinois (average of $245). Flying from Pocatello to Illinois in March is currently the most expensive (average of $321). 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.

Related info for your journey

Find useful and relevant information for your journey from Pocatello to Illinois. 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 from for flights from Pocatello to Illinois?

    Located just 8.1 mi from the city center, Pocatello (PIH) is the airport most travelers will use when flying to Illinois from Pocatello.

  • How long is the flight from Pocatello to Illinois?

    For as low as $417, Delta can have you in Illinois from Pocatello in 4h 57m. Pocatello and Illinois are separated by a distance of 1192 mi.

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

    Most travelers choose Pocatello - Lambert-St Louis, Pocatello - Greater Peoria or Pocatello - Chicago Midway when deciding on the best route from Pocatello to Illinois.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Pocatello to Illinois 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 Pocatello to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Pocatello to Illinois (average of $245). Flying from Pocatello to Illinois in March is currently the most expensive (average of $321). 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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