$104 Cheap Flights from Milwaukee (MKE) to Portland (PDX)

View $104 flight on Fri, Jun 6, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Milwaukee to Portland (MKE-PDX)

Prices were available within the past 7 days and start at $104 for one-way flights and $228 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Fri, Jun 6 - Mon, Jun 9
MKE
Milwaukee
PDX
Portland
$228 Roundtrip, found 1 hour ago
$228
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Fri, Jun 6 from Milwaukee to Portland, returning Mon, Jun 9, priced at $228 found 1 hour ago
Spirit Airlines
Mon, Jun 2 - Tue, Jun 3
MKE
Milwaukee
PDX
Portland
$239 Roundtrip, found 6 days ago
$239
Roundtrip
found 6 days ago
Select Spirit Airlines flight, departing Mon, Jun 2 from Milwaukee to Portland, returning Tue, Jun 3, priced at $239 found 6 days ago
Frontier Airlines
Thu, May 8 - Sun, May 11
MKE
Milwaukee
PDX
Portland
$248 Roundtrip, found 1 hour ago
$248
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, May 8 from Milwaukee to Portland, returning Sun, May 11, priced at $248 found 1 hour ago
Frontier Airlines
Mon, Jun 2 - Tue, Jun 10
MKE
Milwaukee
PDX
Portland
$256 Roundtrip, found 5 days ago
$256
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Mon, Jun 2 from Milwaukee to Portland, returning Tue, Jun 10, priced at $256 found 5 days ago
Frontier Airlines
Fri, Jun 6 - Tue, Jun 10
MKE
Milwaukee
PDX
Portland
$258 Roundtrip, found 2 hours ago
$258
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Fri, Jun 6 from Milwaukee to Portland, returning Tue, Jun 10, priced at $258 found 2 hours ago
Frontier Airlines
Fri, May 23 - Mon, Jun 2
MKE
Milwaukee
PDX
Portland
$260 Roundtrip, found 1 day ago
$260
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, May 23 from Milwaukee to Portland, returning Mon, Jun 2, priced at $260 found 1 day ago
Frontier Airlines
Thu, May 15 - Tue, May 20
MKE
Milwaukee
PDX
Portland
$262 Roundtrip, found 2 days ago
$262
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Thu, May 15 from Milwaukee to Portland, returning Tue, May 20, priced at $262 found 2 days ago
Alaska Airlines
Tue, Jun 3 - Fri, Jun 6
MKE
Milwaukee
PDX
Portland
$283 Roundtrip, found 3 hours ago
$283
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Tue, Jun 3 from Milwaukee to Portland, returning Fri, Jun 6, priced at $283 found 3 hours ago
American Airlines
Tue, Jun 3 - Wed, Jun 4
MKE
Milwaukee
PDX
Portland
$307 Roundtrip, found 2 days ago
$307
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Jun 3 from Milwaukee to Portland, returning Wed, Jun 4, priced at $307 found 2 days ago
Delta
Wed, Jul 2 - Sat, Jul 5
MKE
Milwaukee
PDX
Portland
$307 Roundtrip, found 1 hour ago
$307
Roundtrip
found 1 hour ago
Select Delta flight, departing Wed, Jul 2 from Milwaukee to Portland, returning Sat, Jul 5, priced at $307 found 1 hour ago
Flights from Milwaukee (MKE) to Portland (PDX)
Origin airport
General Mitchell Intl.
Destination airport
Portland Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, JetBlue Airways, Southwest Airlines, Spirit Airlines, Sun Country Airlines, United
Roundtrip price
$228
Distance
1712 mi

Milwaukee to Portland Flights

The cheapest times to fly from Milwaukee to Portland

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Milwaukee to Portland are during the month of June. You can find some of the cheapest flights from Milwaukee to Portland with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Milwaukee to Portland

Sunday is one of the best days to book for cheap flights from Milwaukee to Portland: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Milwaukee to Portland

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Milwaukee to Portland in 2025. You can also book with separate airlines for your outbound and return journeys, from $104 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Milwaukee to Portland flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Milwaukee to Portland airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from General Mitchell Intl. Airport (MKE) to Portland Intl. Airport (PDX) cost?
Discover the latest flight deals from MKE to PDX by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from MKE to PDX?
The cheapest flights from MKE to PDX are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from MKE to PDX?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from MKE to PDX. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from General Mitchell Intl. Airport (MKE) to Portland Intl. Airport (PDX)?
There are no daily nonstop flights available from General Mitchell Intl. Airport (MKE) to Portland Intl. Airport (PDX). But you can choose flights with layovers. Filter your search results on Expedia to include one or two stops, and you’ll be on your way in no time at all.
What day of the week has the most flights from MKE to PDX?
You’ll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from General Mitchell Intl. Airport (MKE) to Portland Intl. Airport (PDX)?
To touch down at Portland Intl. Airport (PDX) without delays, book a flight that leaves General Mitchell Intl. Airport (MKE) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from General Mitchell Intl. Airport (MKE) to Portland Intl. Airport (PDX) last-minute?
Booking your plane ticket from MKE to PDX right before your trip is generally more expensive. However, if you’re flexible with your departure times and dates, you could land a cheap last-minute fare.
Is it cheaper to book a MKE to PDX flight and hotel package?
Compared with arranging hotels and flights separately, booking a MKE to PDX flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one convenient place will take the stress out of planning your trip. Just pick your flights and select from our extensive range of stays, then tailor your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from General Mitchell Intl. Airport (MKE) to Portland Intl. Airport (PDX)?
Generally, it’s possible to reschedule or cancel your MKE to PDX flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline’s policies in your itinerary to see what changes are allowed and if any costs are involved. You’ll also find further details on our Customer Service portal.

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*Available to One Key members.