In terms of precipitation, rainfall in Dubuque ranges from 1.2 - 4.4 inches per month. June is typically the wettest month, when rainfall can reach 4.4 in. January is typically the driest time to visit Dubuque when rainfall is around 1.2 in.

If weather is an important factor for your trip to Dubuque, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 19.4 F).

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portland to Dubuque as you normally would.

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

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

How can I find direct flights from Portland to Dubuque?

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

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

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

$398+ Cheap Flights from Portland to Dubuque

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Portland to Dubuque with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Portland to Dubuque

Round-trip from	$865 (United)

From Portland to Dubuque

Search Deals

Find flight deals from Portland to Dubuque

Cheapest flights from Portland to Dubuque
Explore the most affordable flight options available from Portland to Dubuque. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

Fri 9/2611:59 pmPDX - DBQ

1 stop15h 56mMultiple Airlines

Tue 9/307:50 amDBQ - PDX

1 stop9h 40mMultiple Airlines

Deal found 9/14

$865

Best flights from Portland to Dubuque
Discover carefully curated flight deals from Portland to Dubuque that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 16, 2025.

Fri 9/265:00 amPDX - DBQ

2 stops10h 55mMultiple Airlines

Tue 9/307:50 amDBQ - PDX

1 stop16h 40mMultiple Airlines

Deal found 9/14

$870

Last-minute flights from Portland to Dubuque
Discover last-minute flight deals from Portland to Dubuque. Data last updated September 16, 2025 and is based on user searches.

Fri 9/2611:59 pmPDX - DBQ

1 stop15h 56mMultiple Airlines

Tue 9/307:50 amDBQ - PDX

1 stop9h 40mMultiple Airlines

Deal found 9/14

$865

Fly from

Fly to

Route

Depart

Return

Price

PortlandDubuque

PDX - DBQ

PDXDBQ

Portland

Fri 9/26

5:00 am-5:55 pm

2 stops10h 55m

Dubuque

Tue 9/30

7:50 am-10:30 pm

1 stop16h 40m

$870

PortlandDubuque

PDX - DBQ

PDXDBQ

Portland

Fri 9/19

11:14 am-5:55 pm

2 stops28h 41m

$398

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Best time to book a flight from Portland to Dubuque

Have a flexible travel schedule? Discover the best time to fly to Dubuque from Portland 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.

Related info for your journey

Can I find deals for flights from Portland to Dubuque that include hotel bookings?
Yes. In addition to deals on Portland to Dubuque flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Portland to Dubuque?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Dubuque.
Can I find deals for business class flights from Portland to Dubuque?
Yes. Cheapflights offers flight deals from Portland to Dubuque by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Prairie du Chien

Galena

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Portland to Dubuque

Complete your trip

Dubuque car rentals

Madison Truax Field Airport car rentals

Cedar Rapids Airport car rentals

Moline Quad-City Airport car rentals

Chicago Greater Rockford Airport car rentals

Waterloo Airport car rentals

Dubuque Airport car rentals

Des Moines car rentals

Cedar Rapids car rentals

Sioux City car rentals

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$398+ Cheap flights from Portland to Dubuque (PDX - DBQ)

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 9/19. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Portland to Dubuque with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Portland to Dubuque

Round-trip from

Find flight deals from Portland to Dubuque

Cheapest flights from Portland to DubuqueExplore the most affordable flight options available from Portland to Dubuque. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

Explore the most affordable flight options available from Portland to Dubuque. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portland to Dubuque that are best for you.

Best time to book a flight from Portland to Dubuque

Have a flexible travel schedule? Discover the best time to fly to Dubuque from Portland with our price prediction graph.

Related info for your journey

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

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

How can I find direct flights from Portland to Dubuque?

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

Traveling to a place near Dubuque?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portland to Dubuque

See prices for flight routes from nearby airports that may be better suited for you.

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Portland to Dubuque
Explore the most affordable flight options available from Portland to Dubuque. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.