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$34 Find cheap flights from Oregon to Chicago O'Hare Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to O'Hare Intl departing on 8/27. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Wed 7/10
Wed 7/17

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In the last 7 days travelers have searched 42,898,604 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

June

Cheapest flight

$34
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly with an average 12% increase in price.
Flight from Portland to Chicago O'Hare Airport

FAQs for booking Oregon to Chicago O'Hare Airport flights

  • How does KAYAK find such low prices on flights from Oregon to Chicago O'Hare Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Oregon to Chicago O'Hare Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Oregon to Chicago O'Hare Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago O'Hare Airport from Oregon is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Oregon to Chicago O'Hare Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago O'Hare Airport with an airline and back to Oregon with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Oregon to Chicago O'Hare Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago O'Hare Airport from Oregon up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Prefer to fly non-stop from Oregon to Chicago O'Hare Airport?

Find which airlines fly direct from Oregon to O'Hare Intl, which days they fly and book direct flights.

Nonstop departures

Oregon to Chicago O'Hare Intl

Monday

ANA, Aer Lingus, Aeromexico, +77 more

ANA, Aer Lingus, +78 more

Tuesday

ANA, Aer Lingus, Aerolineas Argentinas, +77 more

ANA, Aer Lingus, +78 more

Wednesday

ANA, Aer Lingus, Aeromexico, +77 more

ANA, Aer Lingus, +78 more

Thursday

ANA, Aer Lingus, Aeromexico, +76 more

ANA, Aer Lingus, +77 more

Friday

ANA, Aer Lingus, Aerolineas Argentinas, +78 more

ANA, Aer Lingus, +79 more

Saturday

ANA, Aer Lingus, Aeromexico, +77 more

ANA, Aer Lingus, +78 more

Sunday

ANA, Aer Lingus, Aerolineas Argentinas, +77 more

ANA, Aer Lingus, +78 more

See more direct flights

Nonstop returns

Chicago O'Hare Intl to Oregon

Monday

ANA, Aer Lingus, Aeromexico, +77 more

ANA, Aer Lingus, +78 more

Tuesday

ANA, Aer Lingus, Aerolineas Argentinas, +77 more

ANA, Aer Lingus, +78 more

Wednesday

ANA, Aer Lingus, Aeromexico, +77 more

ANA, Aer Lingus, +78 more

Thursday

ANA, Aer Lingus, Aeromexico, +76 more

ANA, Aer Lingus, +77 more

Friday

ANA, Aer Lingus, Aerolineas Argentinas, +78 more

ANA, Aer Lingus, +79 more

Saturday

ANA, Aer Lingus, Aeromexico, +77 more

ANA, Aer Lingus, +78 more

Sunday

ANA, Aer Lingus, Aerolineas Argentinas, +77 more

ANA, Aer Lingus, +78 more

See more direct flights
See more direct flights

Book cheap flights from Oregon to Chicago

Recent round-trip flight deals

8/26Mon
nonstopSpirit Airlines
4h 01mPDX-ORD
8/31Sat
nonstopSpirit Airlines
4h 23mORD-PDX
$84
8/26Mon
nonstopSpirit Airlines
4h 01mPDX-ORD
9/1Sun
nonstopSpirit Airlines
4h 23mORD-PDX
$87
6/21Fri
nonstop
4h 07mPDX-ORD
6/22Sat
1 stop
12h 34mORD-PDX
$134
8/26Mon
nonstop
4h 02mPDX-ORD
8/31Sat
nonstop
4h 24mORD-PDX
$150
10/1Tue
nonstopAlaska Airlines
4h 01mPDX-ORD
10/22Tue
nonstopAlaska Airlines
4h 30mORD-PDX
$177
10/2Wed
1 stopAlaska Airlines
8h 10mPDX-ORD
10/19Sat
nonstopAlaska Airlines
4h 32mORD-PDX
$186
7/4Thu
1 stopFrontier
20h 42mPDX-ORD
7/9Tue
1 stopFrontier
26h 49mORD-PDX
$200
9/30Mon
1 stopDelta
7h 49mPDX-ORD
10/22Tue
1 stopDelta
6h 59mORD-PDX
$217
7/12Fri
1 stopFrontier
20h 09mPDX-ORD
7/20Sat
1 stopFrontier
24h 10mORD-PDX
$230
8/30Fri
1 stopDelta
8h 50mBOI-ORD
9/7Sat
2 stopsDelta
10h 54mORD-BOI
$265

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Recent one-way flight deals

8/27Tue
nonstopSpirit Airlines
4h 01mPDX-ORD
$34
6/22Sat
nonstopSpirit Airlines
4h 07mPDX-ORD
$50
9/7Sat
nonstopUnited Airlines
4h 02mPDX-ORD
$89
7/23Tue
2 stopsFrontier
9h 03mPDX-ORD
$92
8/27Tue
1 stopFrontier
22h 15mPDX-ORD
$94
10/12Sat
1 stopAlaska Airlines
5h 40mPDX-ORD
$98
7/8Mon
1 stopSun Country Air
16h 00mPDX-ORD
$101
7/21Sun
1 stopSun Country Air
16h 20mPDX-ORD
$110
8/2Fri
nonstopUnited Airlines
3h 58mPDX-ORD
$126
10/11Fri
1 stopAlaska Airlines
8h 40mBOI-ORD
$184

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Last minute flights from Oregon to O'Hare Intl

Last minute flight, train and bus deals

6/13Thu
nonstopSpirit Airlines
4h 07mPDX-ORD
6/17Mon
nonstopSpirit Airlines
4h 27mORD-PDX
$141
6/14Fri
nonstopSpirit Airlines
4h 07mPDX-ORD
6/16Sun
nonstopSpirit Airlines
4h 27mORD-PDX
$144
6/14Fri
nonstop
4h 07mPDX-ORD
6/18Tue
multi-stop
26h 50mORD-PDX
$171
6/13Thu
nonstop
4h 07mPDX-ORD
6/16Sun
multi-stop
19h 56mORD-PDX
$172
6/12Wed
multi-stopFrontier
21h 48mPDX-ORD
6/16Sun
multi-stopFrontier
26h 45mORD-PDX
$289
6/12Wed
multi-stopFrontier
21h 48mPDX-ORD
6/18Tue
multi-stopFrontier
20h 57mORD-PDX
$294
6/13Thu
multi-stopDelta
5h 31mBOI-ORD
6/18Tue
multi-stopDelta
7h 09mORD-BOI
$305
6/13Thu
nonstopAlaska Airlines
4h 00mPDX-ORD
6/18Tue
nonstopAlaska Airlines
4h 20mORD-PDX
$308
6/13Thu
multi-stopDelta
5h 33mBOI-ORD
6/18Tue
multi-stopDelta
8h 55mORD-BOI
$310
6/11Tue
nonstopAlaska Airlines
4h 05mPDX-ORD
6/15Sat
nonstopAlaska Airlines
4h 20mORD-PDX
$333

Search by stops

Search by airline

Search by price