PDX - DLH

$306 Find Cheap Flights from Portland to Duluth

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Duluth departing on 3/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Duluth

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Duluth, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Duluth, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$306
Typical prices: $343-$463
United Airlines
Tue 3/10Tue 3/17
PDX - DLH • 1 stop
Cheapest one-way
Multiple Airlines
Thu 2/5
PDX - DLH • multi-stop
Top airlines
United Airlines
Cheapest • from $306 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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We hope you love your trip to Duluth!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Portland to Duluth (PDX-DLH)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Duluth that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Duluth

Tue, Mar 10 - Tue, Mar 17
United Airlines Logo
11:59 pm - 10:43 am
PDX
-
DLH
8h 44m
1 stop
United Airlines Logo
3:07 pm - 10:45 pm
DLH
-
PDX
9h 38m
1 stop
$306United Airlines
Tue, Mar 10 - Tue, Mar 17
United Airlines Logo
7:49 pm - 10:43 am
PDX
-
DLH
12h 54m
2 stops
United Airlines Logo
3:07 pm - 10:45 pm
DLH
-
PDX
9h 38m
1 stop
$312United Airlines
Thu, Mar 12 - Fri, Mar 20
Delta Logo
6:05 am - 3:52 pm
PDX
-
DLH
7h 47m
1 stop
Delta Logo
4:32 pm - 8:25 pm
DLH
-
PDX
5h 53m
1 stop
$334Delta
Mon, Jul 27 - Tue, Aug 11
Delta Logo
4:55 pm - 11:38 pm
PDX
-
DLH
4h 43m
1 stop
Delta Logo
12:00 pm - 10:22 pm
DLH
-
PDX
12h 22m
2 stops
$338Delta
Mon, Mar 9 - Thu, Mar 19
Delta Logo
11:15 pm - 11:56 am
PDX
-
DLH
10h 41m
2 stops
Delta Logo
8:04 am - 12:48 pm
DLH
-
PDX
6h 44m
1 stop
$340Delta
Fri, Jul 31 - Tue, Aug 11
Delta Logo
10:55 pm - 10:57 am
PDX
-
DLH
10h 02m
2 stops
Delta Logo
5:10 am - 10:36 am
DLH
-
PDX
7h 26m
2 stops
$343Delta
Mon, Mar 9 - Sun, Mar 15
Delta Logo
11:15 pm - 11:56 am
PDX
-
DLH
10h 41m
2 stops
Delta Logo
4:32 pm - 11:54 pm
DLH
-
PDX
9h 22m
2 stops
$345Delta
Sat, Mar 7 - Sat, Mar 14
Delta Logo
6:00 am - 3:35 pm
PDX
-
DLH
7h 35m
1 stop
Delta Logo
4:32 pm - 8:25 pm
DLH
-
PDX
5h 53m
1 stop
$361Delta
Tue, Feb 17 - Sat, Feb 21
United Airlines Logo
11:59 pm - 10:43 am
PDX
-
DLH
8h 44m
1 stop
United Airlines Logo
3:19 pm - 10:56 pm
DLH
-
PDX
9h 37m
1 stop
$363United Airlines
Fri, Jul 31 - Tue, Aug 11
Delta Logo
4:55 pm - 11:38 pm
PDX
-
DLH
4h 43m
1 stop
Delta Logo
5:10 am - 10:36 am
DLH
-
PDX
7h 26m
2 stops
$366Delta
Booking Insights

KAYAK's insights & trends for Portland to Duluth flights

Get data-powered insights and trends into flights from Portland to Duluth to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Portland to Duluth?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Portland to Duluth departing in March.

Good to know

Low seasonApril
Cheapest flight$306
Best time to beat the crowds with an average 40% drop in price.
Most popular time to fly with an average 42% increase in price.
Flight from Portland to Duluth

When to book flights from Portland to Duluth

Are your dates flexible? Find out the best times to travel from Portland to Duluth based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Portland to Duluth

  • What is the cheapest flight from Portland to Duluth?

    In the last 3 days, the lowest price for a flight from Portland to Duluth was $306 for a round-trip ticket.

  • Do I need a passport to fly between Portland and Duluth?

    No, a passport isn't needed to fly from Portland to Duluth. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from Portland to Duluth?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Portland to Duluth?

    Star Alliance, and SkyTeam are the airline alliances operating flights between Portland and Duluth, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Portland to Duluth, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Portland to Duluth are Delta and United Airlines. With an average price for the route of $416 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $582 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Portland to Duluth?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to Duluth.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to Duluth?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Duluth from Portland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to Duluth?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Duluth with an airline and back to Portland with another airline. Booking your flights between Portland and DLH can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Duluth?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Duluth from Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Portland to Duluth

 
See real verified KAYAK customer reviews for airlines flying from Portland to Duluth. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Portland to Duluth? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8151 reviews
7.2Food
7.9Comfort
7.8Entertainment
8.5Crew
8.1Boarding
Airline reviews

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

10.0 ExcellentSenthil Kumar, Jan 2026
PDX - ATL
Read more Delta reviews

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Flight taking off must have been behind, because there was no pre-departure drink for first class like normal. Also, person in front of mine’s seat got stuck in the as far back as it normally goes position for the whole flight even during landing, flight attendant unable to fix it. Gate was not empty when we arrived, but that is MSP’s fault since was overdue for push back, not Delta’s, so had to sit on tarmac for a while and international flight so then still had to go through customs. Flight crew was excellent throughout though!

Probably not the fault of Delta but there was delay after delay after delay and I ended up getting home 4 hours later then I should have at 1:30 in the morning

The gate attendants and the crew were terrible. Because of high winds, they needed to carry more fuel, so they had to get volunteers to take the next flight at 6 am the next day. They did a terrible job of it - our flight ended up taking off just under 3 hours of the scheduled time. I hope to never fly Delta again.

Did not realize internet screen was hidden between seats and no info printed!!!!

Good seats in Main cabin, excellent service and excellent landing

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

On time flight. Seat comfort could be better in the Comfort section.

My only complaint on any flight is meals but your gnocchi was good. The worst is breakfast. I can’t understand why you don’t just serve something simple like yogurt, fruit and a muffin or cinnamon roll.

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

United Airlines is my preferred airlines and I am thankful for Gary who also help support me on the phone to switch my flight literally last min.

Not being stranded in Chicago for her airport to 11:30 tomorrow morning the 3rd

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

The attendant on board was amazing. She should be doing business/first international long haul.

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

Everything you need to know for your flight from Portland to Duluth

Information on your arrival and departure airports