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$145+ Cheap flights from Oshkosh, WI to Portland (PDX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — PDX
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
1 adult, Economy
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Cheapflights Tip: The best prices from Oshkosh to Portland are usually found in September or October, booked 87 days in advance, depart on a Sunday or Thursday and return on a Tuesday

Find flight deals from Oshkosh to Portland

Cheapest flights from Oshkosh to Portland
Explore the most affordable flight options available from Oshkosh to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2025.

This Delta deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/612:20 pmATW - PDX
1 stop7h 23mDelta
Wed 12/106:15 amPDX - ATW
1 stop7h 23mDelta
Deal found 10/18$251
This Kiwi.com deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/262:42 pmATW - PDX
Nonstop4h 21mMultiple Airlines
Fri 10/3110:02 pmPDX - ATW
1 stop14h 50mMultiple Airlines
Deal found 10/19$256
This Delta deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/35:23 amATW - PDX
2 stops14h 20mDelta
Tue 12/910:10 pmPDX - ATW
2 stops10h 23mDelta
Deal found 10/18$261
This Delta deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/44:18 pmATW - PDX
1 stop6h 34mDelta
Tue 12/96:00 amPDX - ATW
1 stop7h 38mDelta
Deal found 10/18$270
This Kiwi.com deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/262:42 pmATW - PDX
Nonstop4h 21mMultiple Airlines
Sun 11/27:57 pmPDX - ATW
2 stops48h 50mMultiple Airlines
Deal found 10/19$279
This Delta deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/65:31 amATW - PDX
2 stops14h 12mDelta
Fri 12/125:30 amPDX - ATW
2 stops9h 44mDelta
Deal found 10/18$280
This Delta deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/44:18 pmATW - PDX
1 stop6h 34mDelta
Thu 12/1111:54 amPDX - ATW
1 stop8h 10mDelta
Deal found 10/19$289
This Kiwi.com deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/192:42 pmATW - PDX
Nonstop4h 21mAllegiant Air
Thu 10/235:53 pmPDX - ATW
Nonstop3h 37mAllegiant Air
Deal found 10/18$295
This Delta deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:24 amATW - PDX
2 stops18h 16mDelta
Wed 12/106:00 amPDX - ATW
2 stops9h 14mDelta
Deal found 10/18$304

Cheap flight deals from Oshkosh to Portland

Keep the following information in mind while searching for Oshkosh to Portland flight deals. Data was last updated October 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$251
(Delta)

One-way from

$145
(Delta)

Popular in

March

Cheapest in

September

Average price

$188
Provider with most accurate pricing for Appleton Intl-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for Appleton Intl-Portland flights.
Search Deals
From Oshkosh to Portland
Search Deals
One-way flight from Oshkosh to Portland
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($102 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Oshkosh to Portland 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, Cheapflights users made 2,558,603 searches. Data last updated October 20, 2025.
Use the filters below to find and compare flights from Oshkosh to Portland that are best for you.

Fly from

Oshkosh

Fly to

Portland

Route

Depart

Return

Price

AppletonPortland

ATW - PDX

ATWPDX

Appleton Intl

Fri 12/5

4:18 pm-8:52 pm

1 stop6h 34m

Portland

Sat 12/6

11:54 am-10:10 pm

1 stop8h 16m

$270

AppletonPortland

ATW - PDX

ATWPDX

Appleton Intl

Thu 12/4

4:18 pm-8:52 pm

1 stop6h 34m

Portland

Wed 12/10

6:00 am-3:38 pm

1 stop7h 38m

$270

AppletonPortland

ATW - PDX

ATWPDX

Appleton Intl

Sat 12/6

12:20 pm-5:43 pm

1 stop7h 23m

Portland

Fri 12/12

6:15 am-3:38 pm

1 stop7h 23m

$270

AppletonPortland

ATW - PDX

ATWPDX

Appleton Intl

Thu 12/4

4:18 pm-8:52 pm

1 stop6h 34m

Portland

Sat 12/6

10:05 am-8:51 pm

2 stops8h 46m

$275

AppletonPortland

ATW - PDX

ATWPDX

Appleton Intl

Sat 3/14

4:05 pm-8:30 pm

1 stop6h 25m

Portland

Tue 3/24

12:55 am-11:21 am

1 stop8h 26m

$289

AppletonPortland

ATW - PDX

ATWPDX

Appleton Intl

Thu 2/26

12:06 pm-4:51 pm

1 stop6h 45m

Portland

Mon 3/9

12:55 am-11:21 am

1 stop8h 26m

$289

AppletonPortland

ATW - PDX

ATWPDX

Appleton Intl

Thu 3/12

12:06 pm-4:51 pm

1 stop6h 45m

Portland

Mon 3/23

12:55 am-11:21 am

1 stop8h 26m

$289

AppletonPortland

ATW - PDX

ATWPDX

Appleton Intl

Wed 2/25

11:25 am-8:52 pm

2 stops11h 27m

Portland

Tue 3/10

6:00 am-3:44 pm

1 stop7h 44m

$294

AppletonPortland

ATW - PDX

ATWPDX

Appleton Intl

Fri 12/5

12:20 pm-5:43 pm

1 stop7h 23m

Portland

Sun 12/7

6:00 am-5:14 pm

2 stops9h 14m

$294

AppletonPortland

ATW - PDX

ATWPDX

Appleton Intl

Fri 12/12

12:20 pm-6:14 pm

2 stops7h 54m

Portland

Mon 12/15

11:25 pm-10:33 am

1 stop9h 08m

$294

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/19

Showing 1-10 of 18 results
1
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Best time to book a flight from Oshkosh to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Oshkosh with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Oshkosh to Portland

How far ahead should I book a flight from Oshkosh to Portland?

Use this chart to determine the optimal time to book a round-trip flight from Oshkosh to Portland. Price data was last updated on October 17, 2025.

The price you pay for your flight from Oshkosh to Portland may vary depending on when you book. For the best chance of a lower fare, look to book 87 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Oshkosh to Portland?

Currently, September is the cheapest month in which you can book a flight from Oshkosh to Portland (average of $128). Flying from Oshkosh to Portland in March is currently the most expensive (average of $277). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from OS9 to PDX?

Find hourly flight availability from Oshkosh to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 20, 2025.

It’s typically best to fly out from Oshkosh to Portland in the evening. Doing so could potentially save you 47% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Oshkosh to Portland?

Use this chart to determine the cheapest time to fly round-trip from Oshkosh to Portland. Price data was last updated on October 19, 2025.

Travelers seeking maximum savings on their Oshkosh to Portland flight should consider departing on Tuesday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portland. Reviews last updated October 20, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from Oshkosh to Portland to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,976 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!
Delta
7.9
Good
7,976 reviews
Delta
7.9
Good
7,976 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!
United Airlines
7.4
Good
8,994 reviews
Delta
7.9
Good
7,976 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!
American Airlines
7.2
Good
11,026 reviews
Delta
7.9
Good
7,976 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!
Allegiant Air
7.2
Good
694 reviews
Delta
7.9
Good
7,976 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!

Related info for your journey

Find useful and relevant information for your journey from Oshkosh to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Portland from Oshkosh?

    For a flight from Oshkosh to Portland, you will be flying into Portland. Portland (PDX) is just 6.0 mi from the center of the city. Portland is the only Portland airport and it handles 0 inbound flights from Oshkosh per day. 8 airlines have flights to Portland from Oshkosh on a regular basis.

  • How long is the flight from Oshkosh to Portland?

    There are many flights that can get you from Oshkosh to Portland in 6h 34m. Fly via Delta to get the fastest option. Oshkosh and Portland are separated by a distance of 1656 mi.

  • Can I find deals for flights from Oshkosh to Portland that include hotel bookings?

    Yes. In addition to deals on Oshkosh to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Oshkosh to Portland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Oshkosh to Portland.

  • Can I find deals for business class flights from Oshkosh to Portland?

    Yes. Cheapflights offers flight deals from Oshkosh to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Oshkosh to Portland?

    Currently, September is the cheapest month in which you can book a flight from Oshkosh to Portland (average of $128). Flying from Oshkosh to Portland in March is currently the most expensive (average of $277). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Vancouver
Seaside
Clackamas
Lincoln City
Lake Oswego
Beaverton
McMinnville
Hillsboro
Cannon Beach
Long Beach
Longview
Tigard
The Dalles
Depoe Bay
Stevenson
Wilsonville
Pacific City
Tillamook
Gresham
Troutdale

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Top 8 airlines flying from Oshkosh to Portland

Discover the top 8 airlines that operate flights from Oshkosh to Portland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$110Average$265FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$128Average$213FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$262Average$473FlexibilityNo cancel feeOn-time69%
DeltaCheapest$264Average$476FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$269Average$443FlexibilityNo cancel feeOn-time71%
Hawaiian AirlinesCheapest$278Average$287FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$278Average$421FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$328Average$447FlexibilityNo cancel feeOn-time63%

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