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Cheap flights from Portland to Cincinnati from $51

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Cincinnati departing on 9/26. 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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0 bags

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Find the cheapest flights from Portland to Cincinnati

Cheap round-trip flights

Allegiant Air Logo
3:53 pm - 11:00 pmPDX-CVG
4h 07mnonstop
Allegiant Air Logo
1:22 pm - 3:03 pmCVG-PDX
4h 41mnonstop
$106Allegiant Air
Find Deal
Fri, Oct 17 - Mon, Oct 20
Allegiant Air Logo
11:31 am - 6:38 pmPDX-CVG
4h 07mnonstop
Allegiant Air Logo
9:00 am - 10:41 amCVG-PDX
4h 41mnonstop
$107Allegiant Air
Find Deal
Fri, Sep 26 - Mon, Sep 29
Allegiant Air Logo
3:53 pm - 11:00 pmPDX-CVG
4h 07mnonstop
Allegiant Air Logo
1:22 pm - 3:03 pmCVG-PDX
4h 41mnonstop
$125Allegiant Air
Find Deal
Fri, Oct 3 - Mon, Oct 20
Allegiant Air Logo
3:53 pm - 11:00 pmPDX-CVG
4h 07mnonstop
Allegiant Air Logo
1:22 pm - 3:03 pmCVG-PDX
4h 41mnonstop
$127Allegiant Air
Find Deal
Fri, Oct 10 - Mon, Oct 20
Frontier Logo
12:44 pm - 1:49 amPDX-CVG
10h 05m1 stop
Frontier Logo
6:05 am - 11:48 amCVG-PDX
8h 43m1 stop
$153Frontier
Find Deal
Fri, Oct 10 - Mon, Oct 20
Frontier Logo
7:15 am - 10:41 pmPDX-CVG
12h 26m1 stop
Frontier Logo
8:00 am - 11:48 amCVG-PDX
6h 48m1 stop
$163Frontier
Find Deal
Wed, Sep 24 - Tue, Oct 7
Southwest Logo
7:40 am - 7:45 pmPDX-CVG
9h 05m2 stops
Southwest Logo
6:55 pm - 10:35 pmCVG-PDX
6h 40m1 stop
$235Southwest
Find Deal
Sat, Dec 6 - Tue, Dec 9
American Airlines Logo
11:58 pm - 11:35 amPDX-CVG
8h 37m1 stop
American Airlines Logo
9:40 am - 5:04 pmCVG-PDX
10h 24m1 stop
$249American Airlines
Find Deal
Sat, Oct 18 - Sat, Oct 25
Southwest Logo
6:20 am - 3:10 pmPDX-CVG
5h 50m1 stop
Southwest Logo
6:35 am - 10:45 amCVG-PDX
7h 10m1 stop
$250Southwest
Find Deal
Wed, Feb 18 - Mon, Feb 23
Delta Logo
12:40 am - 11:20 amPDX-CVG
7h 40m1 stop
Delta Logo
6:00 am - 10:16 amCVG-PDX
7h 16m1 stop
$261Delta
Find Deal
Fri, Oct 17 - Sat, Oct 25

Allegiant Air flights from Portland to Cincinnati

Our best Allegiant Air deals on Portland to Cincinnati flight tickets
Allegiant Air
Sep 19
PDX11:31 amPortland
4h 07m
CVG6:38 pmCincinnati Cinci./N. Kentucky
Sep 22
CVG9:00 amCincinnati Cinci./N. Kentucky
4h 41m
PDX10:41 amPortland
$105
Find similar
Allegiant Air
Oct 17
PDX3:53 pmPortland
4h 07m
CVG11:00 pmCincinnati Cinci./N. Kentucky
Oct 20
CVG1:22 pmCincinnati Cinci./N. Kentucky
4h 41m
PDX3:03 pmPortland
$106
Find similar
Allegiant Air
Sep 26
PDX11:31 amPortland
4h 07m
CVG6:38 pmCincinnati Cinci./N. Kentucky
Sep 29
CVG9:00 amCincinnati Cinci./N. Kentucky
4h 41m
PDX10:41 amPortland
$107
Find similar

Frontier flights from Portland to Cincinnati

Our best Frontier deals on Portland to Cincinnati flight tickets
Frontier
Oct 10
PDX12:44 pmPortland
10h 05m
1 stop
CVG1:49 amCincinnati Cinci./N. Kentucky
Oct 20
CVG6:05 amCincinnati Cinci./N. Kentucky
8h 43m
1 stop
PDX11:48 amPortland
$153
Find similar
Frontier
Sep 24
PDX7:15 amPortland
12h 26m
1 stop
CVG10:41 pmCincinnati Cinci./N. Kentucky
Oct 7
CVG8:00 amCincinnati Cinci./N. Kentucky
6h 48m
1 stop
PDX11:48 amPortland
$163
Find similar
Frontier
Oct 30
PDX12:52 pmPortland
9h 47m
1 stop
CVG1:39 amCincinnati Cinci./N. Kentucky
Nov 2
CVG5:05 amCincinnati Cinci./N. Kentucky
8h 51m
1 stop
PDX10:56 amPortland
$192
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Portland to Cincinnati that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Portland to Cincinnati that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandCincinnati

PDX - CVG

PDXCVG

Portland

Fri 10/17

3:53 pm-11:00 pm

Nonstop4h 07m

Cincinnati Cinci./N. Kentucky

Mon 10/20

1:22 pm-3:03 pm

Nonstop4h 41m

$106

PortlandCincinnati

PDX - CVG

PDXCVG

Portland

Fri 9/26

11:31 am-6:38 pm

Nonstop4h 07m

Cincinnati Cinci./N. Kentucky

Mon 9/29

9:00 am-10:41 am

Nonstop4h 41m

$107

PortlandCincinnati

PDX - CVG

PDXCVG

Portland

Fri 10/3

3:53 pm-11:00 pm

Nonstop4h 07m

Cincinnati Cinci./N. Kentucky

Mon 10/20

1:22 pm-3:03 pm

Nonstop4h 41m

$125

PortlandCincinnati

PDX - CVG

PDXCVG

Portland

Fri 10/10

3:53 pm-11:00 pm

Nonstop4h 07m

Cincinnati Cinci./N. Kentucky

Mon 10/20

1:22 pm-3:03 pm

Nonstop4h 41m

$127

PortlandCincinnati

PDX - CVG

PDXCVG

Portland

Fri 10/10

12:44 pm-1:49 am

1 stop10h 05m

Cincinnati Cinci./N. Kentucky

Mon 10/20

6:05 am-11:48 am

1 stop8h 43m

$153

PortlandCincinnati

PDX - CVG

PDXCVG

Portland

Wed 9/24

7:15 am-10:41 pm

1 stop12h 26m

Cincinnati Cinci./N. Kentucky

Tue 10/7

8:00 am-11:48 am

1 stop6h 48m

$163

PortlandCincinnati

PDX - CVG

PDXCVG

Portland

Sat 12/6

7:40 am-7:45 pm

2 stops9h 05m

Cincinnati Cinci./N. Kentucky

Tue 12/9

6:55 pm-10:35 pm

1 stop6h 40m

$235

PortlandCincinnati

PDX - CVG

PDXCVG

Portland

Sat 10/18

11:58 pm-11:35 am

1 stop8h 37m

Cincinnati Cinci./N. Kentucky

Sat 10/25

9:40 am-5:04 pm

1 stop10h 24m

$249

PortlandCincinnati

PDX - CVG

PDXCVG

Portland

Wed 2/18

6:20 am-3:10 pm

1 stop5h 50m

Cincinnati Cinci./N. Kentucky

Mon 2/23

6:35 am-10:45 am

1 stop7h 10m

$250

PortlandCincinnati

PDX - CVG

PDXCVG

Portland

Fri 10/17

12:40 am-11:20 am

1 stop7h 40m

Cincinnati Cinci./N. Kentucky

Sat 10/25

6:00 am-10:16 am

1 stop7h 16m

$261

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Cincinnati from

How to get the cheapest flight ticket from Portland to Cincinnati

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 Cincinnati?

The month of August is, on average, the cheapest month to fly to Cincinnati from Portland, with most prices found around $270. If you aren’t able to travel to Cincinnati during the month of August, then flying in June is also cheap. Prices for this month can be found on momondo for an average of $272.

What is the cheapest day to depart on your flight to Cincinnati?

According to our data, Wednesday is the cheapest day to fly to Cincinnati from Portland. The lowest ticket price found for a Wednesday departure recently was $117. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Monday is the most expensive day to depart from Portland because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $153.

What is the cheapest time of day to depart on your flight to Cincinnati?

Our most recent data shows that the best time of day to fly to Cincinnati is in the afternoon. Flights from Portland to Cincinnati during this time can be as low as $119. At noon is when there is more demand to fly to Cincinnati, so prices are often more expensive at around $451 per ticket.

What is the cheapest Portland to Cincinnati Cinci./N. Kentucky flight route?

Fly from Portland to Cincinnati Cinci./N. Kentucky for the best Portland - Cincinnati Cinci./N. Kentucky flight prices

How far in advance should I book a flight to Cincinnati?

You are more likely to see cheaper flights to Cincinnati from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Cincinnati for around $371 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Cincinnati from Portland for as low as $264 on momondo.

What cabin class options are available on Portland to Cincinnati Cinci./N. Kentucky flights?

There is only 1 cabin class available to choose from on Portland to Cincinnati Cinci./N. Kentucky flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Portland to Cincinnati flight prices changed over time?

As of September 2025, prices for Portland to Cincinnati flights are approximately 57% cheaper when compared to flights at the same time last year.

When to book flights from Portland to Cincinnati

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Cincinnati according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to Cincinnati (PDX to CVG) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Cincinnati

Best Price Found

$53

Fastest flight time

4h 07m

Direct flights

Tue and Sat

Airports in Cincinnati

1 airport
The best one-way flight to Cincinnati from Portland in the past 72 hours is $53. The best round-trip flight deal from Portland to Cincinnati found on momondo in the last 72 hours is $106.
The fastest flight from Portland to Cincinnati takes 4h 07m
Direct flights go from Portland to Cincinnati on Tuesday and Saturday. The only airline offering direct flights is Allegiant Air.
There is 1 airport near Cincinnati: Cincinnati Cinci./N. Kentucky (CVG)
Search flight deals

  • How far is Portland to Cincinnati Cinci./N. Kentucky by plane?

    Cincinnati Cinci./N. Kentucky is 1978.6 mi away from Portland. Typically, this will take 4h 07m by plane in normal conditions.

  • When did momondo last update prices for flights from Portland Airport to Cincinnati Cinci./N. Kentucky Airport?

    Prices for flights from Portland Airport to Cincinnati Cinci./N. Kentucky Airport refresh daily.

  • How many operators does momondo search for flights from Portland Airport to Cincinnati Cinci./N. Kentucky Airport?

  • How old do you have to be to fly from Portland Airport to Cincinnati Cinci./N. Kentucky Airport?

    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 Portland Airport to Cincinnati Cinci./N. Kentucky Airport.

  • What documentation or ID do you need to fly to Cincinnati Cinci./N. Kentucky Airport?

    The necessary travel and health documents for your Cincinnati Cinci./N. Kentucky Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Portland to Cincinnati?

  • What is the most popular airline from Portland to Cincinnati?

Best airlines flying from Portland to Cincinnati

Compare and see reviews for airlines that fly from Portland to Cincinnati with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $76Free CancellationRating
7.2
702 reviews
Search Allegiant Air flights
FrontierPriceFrom $134Free CancellationRating
5.8
3,177 reviews
Search Frontier flights
DeltaPriceFrom $260Free CancellationRating
7.9
7,960 reviews
Search Delta flights
American AirlinesPriceFrom $278Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $281Free CancellationRating
7.4
8,937 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $323Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $356Free CancellationRating
8.0
4,248 reviews
Search Southwest flights

Traveling to a place near Cincinnati?

Book flights to Cincinnati if you plan to visit one of these locations
Florence
Mason
Newport
Sharonville
Covington
Middletown
Lawrenceburg
Williamstown
West Chester
Blue Ash
Fairfield
Oxford
Dry Ridge
Monroe
Edgewood
Hebron
Corinth
Bethel
Ghent
Sparta

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Cincinnati?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to Cincinnati. momondo saves you time and could save you money on your trip.

Can I find flights from Portland to Cincinnati with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Portland to Cincinnati flights to just show those with flexible booking policies.

How can momondo help me find flights from Portland to Cincinnati?

momondo helps you find the best flight between Portland and Cincinnati by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Portland to Cincinnati right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Cincinnati from Portland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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