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Cheap flights from Portland to Milwaukee from $115

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 Milwaukee departing on 5/22. 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 Milwaukee

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Portland to Milwaukee.
Frontier Logo
6:35 am - 7:00 pmPDX-MKE
10h 25m1 stop
Frontier Logo
7:45 pm - 12:17 amMKE-PDX
6h 32m1 stop
$218Frontier
Find Deal
Thu, May 22 - Thu, May 29
Spirit Airlines Logo
1:37 pm - 6:59 pmPDX-MKE
27h 22m1 stop
Spirit Airlines Logo
2:59 pm - 12:42 pmMKE-PDX
23h 43m2 stops
$260Spirit Airlines
Find Deal
Thu, May 22 - Thu, May 29
Southwest Logo
3:55 pm - 1:00 amPDX-MKE
7h 05m1 stop
Southwest Logo
7:55 pm - 1:05 amMKE-PDX
7h 10m1 stop
$343Southwest
Find Deal
Wed, Jun 25 - Mon, Jun 30
Delta Logo
10:55 pm - 8:36 amPDX-MKE
7h 41m1 stop
Delta Logo
5:00 pm - 11:04 pmMKE-PDX
8h 04m1 stop
$345Delta
Find Deal
Wed, Aug 13 - Sat, Aug 16
Delta Logo
10:55 pm - 8:36 amPDX-MKE
7h 41m1 stop
Delta Logo
5:00 pm - 9:44 pmMKE-PDX
6h 44m1 stop
$362Delta
Find Deal
Wed, Aug 13 - Wed, Aug 20
Southwest Logo
9:15 pm - 9:30 amPDX-MKE
10h 15m1 stop
Southwest Logo
7:55 pm - 1:05 amMKE-PDX
7h 10m1 stop
$370Southwest
Find Deal
Wed, Jul 2 - Thu, Jul 10
American Airlines Logo
5:26 am - 4:40 pmPDX-MKE
9h 14m1 stop
American Airlines Logo
10:05 am - 2:34 pmMKE-PDX
6h 29m1 stop
$383American Airlines
Find Deal
Sun, May 25 - Tue, May 27
United Airlines Logo
2:12 pm - 10:45 pmPDX-MKE
6h 33m1 stop
United Airlines Logo
2:47 pm - 12:30 amMKE-PDX
11h 43m2 stops
$402United Airlines
Find Deal
Tue, Jul 1 - Fri, Jul 4
United Airlines Logo
7:35 pm - 10:02 amPDX-MKE
12h 27m2 stops
United Airlines Logo
2:47 pm - 12:30 amMKE-PDX
11h 43m2 stops
$407United Airlines
Find Deal
Tue, Jul 1 - Fri, Jul 4
American Airlines Logo
1:43 am - 10:46 amPDX-MKE
7h 03m1 stop
American Airlines Logo
5:29 pm - 12:24 amMKE-PDX
8h 55m1 stop
$417American Airlines
Find Deal
Thu, Aug 28 - Mon, Sep 1

Delta flights from Portland to Milwaukee

Our best Delta deals on Portland to Milwaukee flight tickets
Delta
Aug 13
PDX10:55 pmPortland
7h 41m
1 stop
MKE8:36 amMilwaukee-Mitchell
Aug 16
MKE5:00 pmMilwaukee-Mitchell
8h 04m
1 stop
PDX11:04 pmPortland
Delta
Aug 13
PDX10:55 pmPortland
7h 41m
1 stop
MKE8:36 amMilwaukee-Mitchell
Aug 20
MKE5:00 pmMilwaukee-Mitchell
6h 44m
1 stop
PDX9:44 pmPortland
Delta
Aug 8
PDX10:55 pmPortland
7h 41m
1 stop
MKE8:36 amMilwaukee-Mitchell
Aug 16
MKE5:00 pmMilwaukee-Mitchell
8h 04m
1 stop
PDX11:04 pmPortland

American Airlines flights from Portland to Milwaukee

Our best American Airlines deals on Portland to Milwaukee flight tickets
American Airlines
May 25
PDX5:26 amPortland
9h 14m
1 stop
MKE4:40 pmMilwaukee-Mitchell
May 27
MKE10:05 amMilwaukee-Mitchell
6h 29m
1 stop
PDX2:34 pmPortland
American Airlines
Aug 28
PDX1:43 amPortland
7h 03m
1 stop
MKE10:46 amMilwaukee-Mitchell
Sep 1
MKE5:29 pmMilwaukee-Mitchell
8h 55m
1 stop
PDX12:24 amPortland
American Airlines
Jun 12
PDX12:09 amPortland
7h 36m
1 stop
MKE9:45 amMilwaukee-Mitchell
Jun 20
MKE5:05 amMilwaukee-Mitchell
6h 34m
1 stop
PDX9:39 amPortland

See travel insights to Milwaukee from

How to get the cheapest flight ticket from Portland to Milwaukee

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 Milwaukee?

The cheapest month to fly to Milwaukee from Portland is in April. Flight prices, which tend to average around $352, are often lower during this time because this is during the off-season. The month of January is another great option to travel to Milwaukee, with average flight prices from Portland averaging around $365.

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

According to our data, Tuesday is the cheapest day to fly to Milwaukee from Portland. The lowest ticket price found for a Tuesday departure recently was $401. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Portland to Milwaukee on a Sunday will generally be more expensive and average around $516. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

In the evening is the cheapest time of day to fly from Portland to Milwaukee when you can find flight prices for as low as $416. Flying to Milwaukee in the evening is an ideal time because this is during off-peak travel hours. At noon is when there is more demand to fly to Milwaukee, so prices are often more expensive at around $457 per ticket.

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

You are more likely to see cheaper flights to Milwaukee from Portland when booking 10 weeks ahead of your departure date. In general, you can expect to find flights to Milwaukee for around $452 when searching 10 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Milwaukee from Portland for as low as $376 on momondo.

How have Portland to Milwaukee flight prices changed over time?

As of April 2025, prices for Portland to Milwaukee flights are approximately 26% more expensive when compared to flights at the same time last year.

When to book flights from Portland to Milwaukee

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

Cheap Portland to Milwaukee (PDX to MKE) flight deals and tips

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

Best Price Found

$115

Fastest flight time

5h 30m

Direct flights

None

Airports in Milwaukee

1 airport
The best one-way flight to Milwaukee from Portland in the past 72 hours is $115. The best round-trip flight deal from Portland to Milwaukee found on momondo in the last 72 hours is $218.
The fastest flight from Portland to Milwaukee takes 5h 30m
There are no direct flights from Portland to Milwaukee. Popular non-direct route for this connection is Portland Airport - Milwaukee-Mitchell Airport.
There is 1 airport near Milwaukee: Milwaukee-Mitchell (MKE)

  • How far is Portland to Milwaukee-Mitchell by plane?

    A flight from Portland to Milwaukee-Mitchell will travel around 1713.7 mi. A reasonable flight in good conditions will take 5h 33m.

  • When did momondo last update prices for flights from Portland Airport to Milwaukee-Mitchell Airport?

    Prices for flights from Portland Airport to Milwaukee-Mitchell Airport were last updated today.

  • How many operators does momondo search for flights from Portland Airport to Milwaukee-Mitchell Airport?

  • How old do you have to be to fly from Portland Airport to Milwaukee-Mitchell Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Milwaukee-Mitchell Airport.

  • What documentation or ID do you need to fly to Milwaukee-Mitchell Airport?

    The required travel and health documents for your Milwaukee-Mitchell Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Milwaukee-Mitchell Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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


Best airlines flying from Portland to Milwaukee

Compare and see reviews for airlines that fly from Portland to Milwaukee with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $128Free CancellationRating
5.9
3,283 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $143Free CancellationRating
6.3
7,942 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $286Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $305Free CancellationRating
8.0
9,928 reviews
Search Alaska Airlines flights
DeltaPriceFrom $306Free CancellationRating
8.0
7,920 reviews
Search Delta flights
United AirlinesPriceFrom $326Free CancellationRating
7.4
8,685 reviews
Search United Airlines flights
SouthwestPriceFrom $366Free CancellationRating
8.0
4,287 reviews
Search Southwest flights

Traveling to a place near Milwaukee?

Book flights to Milwaukee if you plan to visit one of these locations
Waukesha
Sheboygan
Oak Creek
Mequon
Glendale
Kohler
Pewaukee
West Bend
Wauwatosa
Port Washington
Grafton
New Berlin

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Portland to Milwaukee for you.

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

Yes. momondo enables you to select and highlight flights to Milwaukee from Portland with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Milwaukee from Portland.

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

Of course. momondo tracks the price of Portland to Milwaukee flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


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