Cheap flights from Illinois to Portland from $81
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Portland departing on 6/4. 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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How to get the cheapest flight ticket from Illinois to Portland
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 Portland?
The cheapest month to fly to Portland from Illinois is in September. Flight prices, which tend to average around $267, are often lower during this time because this is during the off-season. If you don’t want to visit Portland in September, then you should wait until May to fly from Illinois, when ticket prices are also cheap, with an average price of $272.
What is the cheapest day to depart on your flight to Portland?
The cheapest day to depart on your flight to Portland is on a Wednesday when prices can be found for as low as $304. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Portland is Monday, with ticket prices averaging around $384.
What is the cheapest time of day to depart on your flight to Portland?
The cheapest time of day to fly to Portland is in the evening when flights can be purchased for as low as $219. In the afternoon is when there is more demand to fly to Portland, so prices are often more expensive at around $388 per ticket.
What is the cheapest Illinois to Portland flight route?
Fly from Chicago Midway to Portland for the best Illinois - Portland flight prices
How far in advance should I book a flight to Portland?
You are more likely to see cheaper flights to Portland from Illinois when booking 16 weeks ahead of your departure date. In general, you can expect to find flights to Portland for around $331 when searching 16 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland from Illinois for as low as $286 on momondo.
What cabin class options are available on Illinois to Portland flights?
There are 4 cabin classes available to choose from on Illinois to Portland 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 Illinois to Portland?
Spirit Airlines, Southwest, and United Airlines are the most popular carriers operating from Illinois to Portland
What airlines fly to Portland?
United Airlines, American Airlines and Alaska Airlines are the top three most popular airlines that fly to Portland from Illinois according to our data. United Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Portland. Keep in mind that there are 8 different airlines that fly to Portland on a routine basis, so you have a few additional options to choose from.
How many flights depart from Illinois to Portland on average per day?
As of May 2025, there are 19 flights per day flying from Illinois to Portland. The most common time of day flights depart is 8:00PM, with 42% of flights taking off in the evening.
How many flights depart from Illinois to Portland on average per week?
As of May 2025, 133 flights take off from Illinois and land in Portland each week. The most common flight departure day for this route is Mon, with 18% of weekly flights taking off on this day.
Cheap Illinois to Portland flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Illinois to Portland
When did momondo last update prices for flights from Illinois to Portland Airport?
Prices for flights from Illinois to Portland Airport refresh daily.
How many operators does momondo search for flights from Illinois to Portland Airport?
As of May 2025, there are 8 operators available to choose from for flights from Illinois to Portland Airport.
How old do you have to be to fly from Illinois to Portland Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Portland Airport.
What documentation or ID do you need to fly to Portland Airport?
The required travel and health documents for your Portland 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 Portland Airport. 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 Illinois to Portland?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Illinois to Portland is Boeing 737-800 (21.97% of total bookings). The next most popular plane models are Boeing 737-900 (14.89%), Boeing 737 MAX 8 (10.11%), and Boeing 737-900 Passenger/BBJ3 (winglets) (9.85%).
Best airlines flying from Illinois to Portland
Compare and see reviews for airlines that fly from Illinois to Portland with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $82 | Free Cancellation | Rating 6.3 7,967 reviews | |||
| PriceFrom $108 | Free Cancellation | Rating 5.9 3,288 reviews | |||
| PriceFrom $134 | Free Cancellation | Rating 7.9 2,420 reviews | |||
| PriceFrom $176 | Free Cancellation | Rating 8.0 7,941 reviews | |||
| PriceFrom $178 | Free Cancellation | Rating 8.0 9,987 reviews | |||
| PriceFrom $198 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $218 | Free Cancellation | Rating 7.4 8,702 reviews | |||
| PriceFrom $238 | Free Cancellation | Rating 8.0 4,292 reviews |
Traveling to a place near Portland?
Book flights to Portland if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Illinois to Portland?
Finding the right flight to Portland from Illinois is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Portland quick and easy, saving you time and money.
Can I find flights from Illinois to Portland with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Portland from Illinois with this policy.
How can momondo help me find flights from Illinois to Portland?
Once all potential Illinois to Portland flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Illinois to Portland right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Portland, momondo offers a useful price alert feature which will track prices for flights to Portland from Illinois and alert you when they change.