Cheap Flights from Chicago, IL to Portland, ME from $86

Return flight: Portland – Chicago

On Cheapflightsplus.com you will find 5 direct and 297 connecting flights from Chicago to Portland. You can compare airfare deals from 6 airlines and multiple travel sites from $86, book and save on cheap plane tickets and last minute offers. Also check out CHI-PWM flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Chicago to Portland Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $86 (one-way), $147 (round-trip).
Direct flights
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Full flight schedule will help you in detecting at what time planes fly from Chicago to Portland. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
10:58 — 14:24
10:58 — 14:24 UA763 United Airlines
Chicago — Portland
2h 26m
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from$113
13:55 — 17:37
13:55 — 17:37 UA5849 United Airlines
Chicago — Portland
2h 42m
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from$144
13:55 — 17:37
13:55 — 17:37 UA3644 United Airlines
Chicago — Portland
2h 42m
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from$145
13:55 — 17:37
13:55 — 17:37 UA3451 United Airlines
Chicago — Portland
2h 42m
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from$169
18:30 — 22:01
18:30 — 22:01 UA1974 United Airlines
Chicago — Portland
2h 31m
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from$111
06:00 — 13:18
06:00 — 09:13 UA1658 United Airlines
Chicago — Newark
2h 45m stop
12:13 — 13:33 UA3512 United Airlines
Newark — Portland
6h 18m
including layover
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from$116
06:45 — 11:11
+1 day
06:45 — 08:25 SY1630 Sun Country Airlines
Chicago — Minneapolis
23h 5m stop
07:30 — 11:11 SY1821 Sun Country Airlines
Minneapolis — Portland
27h 26m
including layover
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from$113
07:15 — 13:22
07:15 — 10:33 UA563 United Airlines
Chicago — Newark
1h 25m stop
11:58 — 13:22 UA3685 United Airlines
Newark — Portland
5h 7m
including layover
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from$115
07:15 — 10:36
+1 day
07:15 — 11:03 NK3200 Spirit Airlines
Chicago — Orlando
20h 27m stop
07:30 — 10:36 MX738 Mexicana
Orlando — Portland
26h 21m
including layover
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from$162
08:50 — 14:25
08:52 — 11:55 UA2029 United Airlines
Chicago — Washington D.C.
40m stop
13:05 — 14:53 UA3529 United Airlines
Washington D.C. — Portland
4h 35m
including layover
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from$117
08:52 — 14:23
08:52 — 11:55 UA1068 United Airlines
Chicago — Washington D.C.
40m stop
12:35 — 14:23 UA3529 United Airlines
Washington D.C. — Portland
4h 31m
including layover
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from$166
09:00 — 16:52
09:00 — 12:17 UA1578 United Airlines
Chicago — Newark
3h 8m stop
15:25 — 16:52 UA3651 United Airlines
Newark — Portland
6h 52m
including layover
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from$115
09:08 — 18:13
09:08 — 12:52 F92792 Frontier Airlines
Chicago — Orlando
1h 54m stop
15:15 — 18:30 F92622 Frontier Airlines
Orlando — Portland
8h 5m
including layover
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from$86
10:50 — 19:27
10:50 — 13:49 UA758 United Airlines
Chicago — Washington D.C.
3h 41m stop
17:30 — 19:27 UA3517 United Airlines
Washington D.C. — Portland
7h 37m
including layover
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from$114
11:46 — 18:26
11:46 — 15:12 UA1205 United Airlines
Chicago — Newark
1h 47m stop
16:59 — 18:26 UA3599 United Airlines
Newark — Portland
5h 40m
including layover
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from$150
12:22 — 18:13
12:22 — 15:48 UA1205 United Airlines
Chicago — Newark
1h 1m stop
16:49 — 18:13 UA334 United Airlines
Newark — Portland
4h 51m
including layover
Find flight
from$153
12:50 — 19:29
12:50 — 15:52 UA1377 United Airlines
Chicago — Washington D.C.
1h 42m stop
17:34 — 19:29 UA3517 United Airlines
Washington D.C. — Portland
5h 39m
including layover
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from$150
13:05 — 19:27
13:05 — 16:10 UA2337 United Airlines
Chicago — Washington D.C.
1h 20m stop
17:30 — 19:27 UA3517 United Airlines
Washington D.C. — Portland
5h 22m
including layover
Find flight
from$121
14:20 — 23:01
14:20 — 17:47 UA2649 United Airlines
Chicago — Newark
3h 43m stop
21:30 — 23:01 UA3647 United Airlines
Newark — Portland
7h 41m
including layover
Find flight
from$115
14:20 — 23:14
14:26 — 18:00 UA2649 United Airlines
Chicago — Newark
3h 51m stop
21:59 — 23:27 UA1232 United Airlines
Newark — Portland
7h 54m
including layover
Find flight
from$121
15:40 — 23:14
15:40 — 19:14 UA2133 United Airlines
Chicago — Newark
2h 31m stop
21:45 — 23:14 UA2127 United Airlines
Newark — Portland
6h 34m
including layover
Find flight
from$116
16:00 — 23:01
16:00 — 19:27 UA2133 United Airlines
Chicago — Newark
2h 3m stop
21:30 — 23:01 UA3647 United Airlines
Newark — Portland
6h 1m
including layover
Find flight
from$115
16:50 — 23:14
16:50 — 20:24 UA1785 United Airlines
Chicago — Newark
1h 21m stop
21:45 — 23:14 UA1232 United Airlines
Newark — Portland
5h 24m
including layover
Find flight
from$121
17:00 — 23:01
17:00 — 20:27 UA485 United Airlines
Chicago — Newark
1h 3m stop
21:30 — 23:01 UA3647 United Airlines
Newark — Portland
5h 1m
including layover
Find flight
from$115
17:55 — 23:54
17:55 — 20:55 UA2677 United Airlines
Chicago — Washington D.C.
1h 10m stop
22:05 — 23:54 UA3611 United Airlines
Washington D.C. — Portland
4h 59m
including layover
Find flight
from$115
18:00 — 09:11
+1 day
18:00 — 21:27 UA534 United Airlines
Chicago — Newark
10h 18m stop
07:45 — 09:11 UA3597 United Airlines
Newark — Portland
14h 11m
including layover
Find flight
from$183
19:35 — 09:11
+1 day
19:35 — 22:59 UA2362 United Airlines
Chicago — Newark
8h 46m stop
07:59 — 09:24 UA3597 United Airlines
Newark — Portland
12h 36m
including layover
Find flight
from$183
19:39 — 10:36
+1 day
19:39 — 23:32 NK507 Spirit Airlines
Chicago — Orlando
7h 58m stop
08:45 — 11:53 MX738 Mexicana
Orlando — Portland
13h 57m
including layover
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from$162
20:17 — 11:23
+1 day
20:17 — 21:57 SY262 Sun Country Airlines
Chicago — Minneapolis
9h 45m stop
07:42 — 11:23 SY1821 Sun Country Airlines
Minneapolis — Portland
14h 6m
including layover
Find flight
from$141
21:20 — 09:24
+1 day
21:08 — 00:30 UA1209 United Airlines
Chicago — Newark
7h 17m stop
07:59 — 09:24 UA3597 United Airlines
Newark — Portland
11h 4m
including layover
Find flight
from$180
21:25 — 09:24
+1 day
21:24 — 00:45 UA396 United Airlines
Chicago — Newark
7h 19m stop
08:05 — 09:24 UA3514 United Airlines
Newark — Portland
10h 59m
including layover
Find flight
from$177
11:50 — 11:11
+1 day
11:50 — 13:50 NK2620 Spirit Airlines
Chicago — Las Vegas
4h 58m stop
18:24 — 23:33 SY108 Sun Country Airlines
Las Vegas — Minneapolis
7h 33m stop
08:06 — 11:45 SY1821 Sun Country Airlines
Minneapolis — Portland
22h 21m
including layover
Find flight
from$183
22:15 — 11:11
+2 days
22:15 — 00:19 NK2179 Spirit Airlines
Chicago — Las Vegas
23h 40m stop
23:59 — 05:06 SY778 Sun Country Airlines
Las Vegas — Minneapolis
2h 24m stop
07:30 — 11:11 SY1821 Sun Country Airlines
Minneapolis — Portland
35h 56m
including layover
Find flight
from$183
*Departure and arrival times - local. Updated on June 17, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Chicago to Portland depends on and how to choose the most interesting flight option for you.

Distance between Chicago and Portland is 1425 miles. Time difference between the cities is 1h. Airplanes depart 05:05 to 22:15 from 7 Chicago airports and arrive 05:05 to 22:15 to 1 Portland airport. Average flight time is 2h 42m.

  • The fastest flight 2h 26m
  • Average flight time 2h 42m
  • The earliest flight 05:05
  • The latest flight 22:15
  • Distance 886 ml

The cheapest months to travel to Portland are july (from 115 $), june (from 120 $), august (from 129 $).

The most expensive months are september (from 154 $), october (from 154 $), may (from 132 $).

What is the lowest airfare Chicago to Portland?

The cheapest plane ticket found by our users is $86. This airfare is for economy class on one-way F92792 flight by Frontier Airlines for July 5, 2025 which leaves O'Hare International in Chicago at 09:08 am and arrives at Portland Portland Intl Jetport at 18:13.

Economy class
$86
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Business class
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First class
?
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Popular Airlines on the Route

The flight Chicago — Portland is served by 6 regular airlines and 4 low-cost airlines. Most of the flights on this route are operated by United Airlines - 198 departures per week at the price of from $ 111 . And the most expensive tickets are offered by Alaska Airlines airline - from $ 975.

Direct flights

There are 5 nonstop flights on the route. The fastest direct flight is UA763 by United Airlines takes 2h 26m and the cheapest is F92792 by Frontier Airlines for $111.

See more direct flights

Connecting Flights

There are 297 flights with layovers on the route. The fastest connecting flight is UA1068 by United Airlines takes 4h 31m and the cheapest is F92792 by Frontier Airlines for $86.

  • from $114
    Find
  • AS - Alaska Airlines
    from $975
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  • F9 - Frontier Airlines
    from $86
    Find
  • SY - Sun Country Airlines
    from $113
    Find
  • NK - Spirit Airlines
    from $162
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  • G4 - Allegiant Air
    from $204
    Find
See more connecting flights

Airports

You can fly from Chicago to Portland from 7 airports (O'Hare International, Midway, Dupage County, Chicago FSS, Merrill C Meigs (closed), Pal-Waukee, Chicago NAS).

Chicago airports

  • O'Hare International-ORD
    from $86
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  • Midway-MDW
    from $204
    Find
  • Dupage County-DPA
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  • Chicago FSS-CHI
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  • Merrill C Meigs (closed)-CGX
    Find
  • Pal-Waukee-PWK
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  • Chicago NAS-NOH
    Find

Portland airports

  • Portland Intl Jetport-PWM
    Find

How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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