Cheap flights from Champaign to Portland (CMI - PDX)

Sep 26 — Oct 31

How to find the cheapest flight from Champaign (CMI) to Portland (PDX)

All the information you need to plan the best CMI to PDX flight in 2023: compare Champaign to Portland flight prices with the expected peak season, weather and rainfall in Portland.

Popular in


Cheapest in


Average price


Round-trip from

High demand for flights, 31% potential price rise
Best time to find cheap flights, 40% potential price drop
Average for round-trip flights in September 2023
From Champaign University-Willard to Portland



$278 - $500



41 - 69.8 °F



0.7 - 5.6 inches

What is the cheapest month to fly from Champaign to Portland?

May is one of the best times of the year to fly to Portland from Champaign. Prices for May average $773 per person but you can even find prices for as low as $453. The most expensive prices can be found in the month of June. Opting for a May flight can save you 44% on your journey compared to booking in June

When is the cheapest time to fly from Champaign to Portland (CMI - PDX)?

When flying from Champaign to Portland, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Useful info, stats and facts about Champaign to Portland flights.

What does CMI to PDX mean?

CMI stands for Champaign University-Willard Airport, while PDX stands for Portland Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

Top airline flying from Champaign to Portland

The chart below displays the airlines Cheapflights users traveling from Champaign to Portland choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
American AirlinesCheapest$509Average$604FlexibilityNo cancel feeOn-time71%
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