Cheap flights from Portland, Maine to Illinois from $88
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland, Maine to Illinois departing on 5/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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United Airlines flights from Portland, Maine to Illinois
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How to get the cheapest flight ticket from Portland, Maine to Illinois
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 month to fly to Illinois?
The cheapest month to fly to Illinois from Portland, Maine is in September. Flight prices, which tend to average around $284, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of September, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $307.
What is the cheapest day to depart on your flight to Illinois?
The cheapest day to depart from Portland, Maine to Illinois is on a Thursday when prices can be found for as low as $462. Flights from Portland, Maine to Illinois on a Sunday will generally be more expensive and average around $615. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Illinois?
Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Portland, Maine to Illinois during this time can be as low as $126. Flights in the morning are often more expensive with an average ticket price of $530.
What is the cheapest Portland to Illinois flight route?
Fly from Portland to Chicago O'Hare Intl for the best Portland - Illinois flight prices
How far in advance should I book a flight to Illinois?
You are more likely to see cheaper flights to Illinois from Portland, Maine when booking 20 weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $377 when searching 20 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Portland, Maine for as low as $210 on momondo.
What cabin class options are available on Portland to Illinois flights?
There are 4 cabin classes available to choose from on Portland to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Portland to Illinois?
Frontier, American Airlines, and United Airlines are the most popular carriers operating from Portland to Illinois
What airlines fly to Illinois?
American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Illinois from Portland, Maine according to our data. American Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 7 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.
How many flights depart from Portland, Maine to Illinois on average per day?
As of April 2025, there are 3 flights per day flying from Portland, Maine to Illinois. The most common time of day flights depart is 4:00PM, with 51% of flights taking off at noon.
How many flights depart from Portland, Maine to Illinois on average per week?
22 flights are operational weekly from Portland, Maine to Illinois as of April 2025. The most popular departure day for this route is Mon, with 32% of flights per week taking off on this day.
Cheap Portland, Maine to Illinois flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to Illinois
When did momondo last update prices for flights from Portland Airport to Illinois?
Prices for flights from Portland Airport to Illinois are updated daily.
How many operators does momondo search for flights from Portland Airport to Illinois?
There are 5 operators available for flights from Portland Airport to Illinois as of April 2025.
How old do you have to be to fly from Portland Airport to Illinois?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The required travel and health documents for your Illinois 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 Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Portland, Maine to Illinois?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Portland, Maine to Illinois is Embraer 175 (Enhanced Winglets) (29.21% of total bookings). The next most popular plane models are Embraer 175 (13.60%), Embraer 170 (13.29%), and Airbus A319 (12.67%).
Best airlines flying from Portland, Maine to Illinois
Compare and see reviews for airlines that fly from Portland, Maine to Illinois with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $38 | Free Cancellation | Rating 5.9 3,283 reviews | |||
| PriceFrom $124 | Free Cancellation | Rating 8.0 7,920 reviews | |||
| PriceFrom $158 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $194 | Free Cancellation | Rating 7.4 8,684 reviews | |||
| PriceFrom $264 | Free Cancellation | Rating 8.0 4,287 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Portland to Illinois?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Portland to Illinois for you.
Can I find flights from Portland to Illinois with flexible booking policies on momondo?
Flights from Portland to Illinois with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Portland to Illinois?
Once you have performed a search for Portland to Illinois 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 Portland to Illinois right now. Can momondo alert me if prices change?
Price alerts on flights to Illinois from Portland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.