Cheap Flights from Portland (PDX) to Carbondale (MDH)

Popular airlines from Portland International Airport (PDX) to Carbondale, IL (MDH-Southern Illinois)

Frequently asked questions

How much does a flight from Portland Intl. Airport (PDX) to Carbondale, IL (MDH-Southern Illinois) cost?
Snag a cheap one-way flight or cheap return flight from Portland Intl. Airport (PDX) to Carbondale, IL (MDH-Southern Illinois) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Portland Intl. Airport (PDX) to Carbondale, IL (MDH-Southern Illinois)?
Planning your trip for can help you save, as it's the cheapest month for flights between PDX and MDH. You'll typically find the lowest fares during the off-season.
What is the cheapest airline that flies from Portland Intl. Airport (PDX) to Carbondale, IL (MDH-Southern Illinois)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest PDX to MDH flight.
How many flights per day from Portland Intl. Airport (PDX) to Carbondale, IL (MDH-Southern Illinois)?
You'll have to hop on a flight with a layover when traveling from Portland Intl. Airport (PDX) to Carbondale, IL (MDH-Southern Illinois). There are no daily direct flights on this route. However, just filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from PDX to MDH?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Portland Intl. Airport (PDX) to Carbondale, IL (MDH-Southern Illinois)?
To avoid possible delays on the Portland Intl. Airport (PDX) to Carbondale, IL (MDH-Southern Illinois) route, fly before 3 PM. Departures after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Portland Intl. Airport (PDX) to Carbondale, IL (MDH-Southern Illinois) last-minute?
Holding off until right before your break to book a ticket from PDX to MDH generally means paying more. While you may find some last-minute deals, they aren't always guaranteed. Keep your travel schedule open to maximize your chances of scoring a bargain.
Is it cheaper to book a PDX to MDH flight and hotel package?
Compared with arranging hotels and flights separately, booking a PDX to MDH flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one convenient place will take the stress out of planning your trip. Simply pick your flights and choose from our wide range of stays, then customize your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Portland Intl. Airport (PDX) to Carbondale, IL (MDH-Southern Illinois)?
It's usually possible to reschedule or cancel your PDX to MDH flight. However, for bookings made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Travel information

Origin airport
Portland Intl.
Destination airport
Southern Illinois
Distance
1788 mi

Book with confidence

Book with confidence

Portland to Carbondale Flights

The cheapest times to fly from Portland to Carbondale

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Portland to Carbondale are during the month of . You can find some of the cheapest flights from Portland to Carbondale with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Portland to Carbondale

Sunday is one of the best days to book for cheap flights from Portland to Carbondale: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Portland to Carbondale

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Portland to Carbondale in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Portland to Carbondale flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Portland to Carbondale airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Portland to Carbondale Flights

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*Available to One Key members.