Cheap flights from Illinois to Oregon from $90
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 Oregon departing on 8/31. 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 Oregon
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 Oregon?
The month of September is, on average, the cheapest month to fly to Oregon from Illinois, with most prices found around $269. The month of January is another great option to travel to Oregon, with average flight prices from Illinois averaging around $274.
What is the cheapest day to depart on your flight to Oregon?
On average, the least expensive day to fly to Oregon from Illinois is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $322. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Oregon is Sunday, with ticket prices averaging around $390.
What is the cheapest time of day to depart on your flight to Oregon?
According to our data, the cheapest time of day to fly to Oregon is in the evening. momondo users have found flights departing from Illinois to Oregon in the evening for as low as $252. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Oregon are more costly at noon, with an average ticket price of $387. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest Illinois to Oregon flight route?
Fly from Chicago Midway to Portland for the best Illinois - Oregon flight prices
How far in advance should I book a flight to Oregon?
You are more likely to see cheaper flights to Oregon from Illinois when booking 16 weeks ahead of your departure date. In general, you can expect to find flights to Oregon for around $333 when searching 16 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Oregon from Illinois for as low as $287 on momondo.
What cabin class options are available on Illinois to Oregon flights?
There are 4 cabin classes available to choose from on Illinois to Oregon 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 Oregon?
Southwest, Hawaiian Airlines, and Spirit Airlines are the most popular carriers operating from Illinois to Oregon
What airlines fly to Oregon?
United Airlines, Alaska Airlines and American Airlines are the top three most popular airlines that fly to Oregon from Illinois according to our data. United Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Oregon. Keep in mind that there are 8 different airlines that fly to Oregon on a routine basis, so you have a few additional options to choose from.
How many flights depart from Illinois to Oregon on average per day?
As of June 2025, 36 flights take off from Illinois and land in Oregon each day. The most common flight departure time for this route is 8:00PM, with 37% of daily flights taking off in the evening.
How many flights depart from Illinois to Oregon on average per week?
As of June 2025, there are 252 flights per week flying from Illinois to Oregon. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.
Cheap Illinois to Oregon flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Illinois to Oregon
When did momondo last update prices for flights from Illinois to Oregon?
Prices for flights from Illinois to Oregon were last updated today.
How many operators does momondo search for flights from Illinois to Oregon?
As of June 2025, there are 8 operators available to choose from for flights from Illinois to Oregon.
How old do you have to be to fly from Illinois to Oregon?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Oregon.
What documentation or ID do you need to fly to Oregon?
The travel and health documents you'll need for your trip to Oregon may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Oregon. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Illinois to Oregon?
momondo data reveals that the most frequently booked plane model on the route from Illinois to Oregon is Boeing 737-800, representing 20.48% of all bookings. The subsequent popular models are Boeing 737 MAX 9 at 13.76%, Boeing 737-900 at 13.30%, and Airbus A321-100/200 at 10.02%.
Best airlines flying from Illinois to Oregon
Compare and see reviews for airlines that fly from Illinois to Oregon with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $91 | Free Cancellation | Rating 6.3 8,061 reviews | |||
| PriceFrom $108 | Free Cancellation | Rating 5.9 3,296 reviews | |||
| PriceFrom $143 | Free Cancellation | Rating 7.8 2,500 reviews | |||
| PriceFrom $176 | Free Cancellation | Rating 8.0 7,963 reviews | |||
| PriceFrom $179 | Free Cancellation | Rating 8.0 10,000 reviews | |||
| PriceFrom $222 | Free Cancellation | Rating 7.4 8,801 reviews | |||
| PriceFrom $227 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $237 | Free Cancellation | Rating 8.0 4,278 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Illinois to Oregon?
Finding the right flight to Oregon 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 Oregon quick and easy, saving you time and money.
Can I find flights from Illinois to Oregon with flexible booking policies on momondo?
Yes. All flights to Oregon from Illinois on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Illinois to Oregon?
Once all potential Illinois to Oregon 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 Oregon right now. Can momondo alert me if prices change?
Price alerts on flights to Oregon from Illinois 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.