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Fri 3/3
Fri 3/10

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Good to know

Low season

March

High season

July

Cheapest flight

$72

Average price round-trip

$480

Good deal round-trip

$185

Good deal one-way

$82
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 17% increase in price.
Flight from Denver Intl to Duluth Intl
(avg. price over the last 2 weeks)
or less
or less

FAQs for booking flights from North America to Duluth

Top 3 airlines serving North America to Duluth Intl

Scores according to KAYAK customer reviews
8.3
Alaska AirlinesOverall score based on 29410 reviews
8.5Boarding
8.3Comfort
8.8Crew
7.9Entertainment
7.9Food
Airline reviews
Cons: "Nothing"
Read more about Alaska Airlines
Cons: "Nothing"
Pros: "Upgrade to premium was amazing. Crew was perfect"
Pros: "Baggage drop and checkin was a breeze"
Pros: "Crew was great, and I like having a plug for my laptop."
Cons: "WiFi at 6.50$ and hour is ridiculous. That should be the price for the whole flight or free (obviously heading that way)."
Cons: "Really old plane. Not well cleaned. Bring sanitary wipes for seat and tray tables. But cabin crew is top notch."
Pros: "The crew was excellent and boarding was a cinch. I volunteered to check in my girlfriend and I's bags and the process was very easy."
Cons: "Compared to other airlines, I think their food and beverage service was a little lacking."
Pros: "Food was amazing."
Cons: "The flight delay was annoying"
Pros: "They allowed passengers with little children Board first, unlike the trip from LAX to Boston we had to wait until our class even we traveled with 3 little children"
Cons: "Let passengers with special needs board first, and announce baggage claim carousel number before entering the gate"
Cons: "If we were able to get some real food and real answers when our flight was delayed for 5 hours. We got pretzels and cookies and that was it even though all the resteraunts in the airport had closed so we had no other options! We also kept getting told the fix would happen soon and it took 5 hours."
Pros: "The leg room"
Cons: "The timeliness of getting our checked luggage"
Pros: "Plane was new, boarding was easy and on-time"
Cons: "Passenger seated beside me was morbidly obese and spilling over into my seat........"
Cons: "Bathrooms were not maintained during duration of flight. With airlines like Delta and JetBlue stepping up their in-flight service Alaska needs to get with the program. I think everyone and their mothers we're in boarding group C but yet no one was in A...make it more dispersed."
Pros: "Nothing"
Cons: "Alaska airlines is a consistent let down. This was the LAST time I will ever fly them. A 9 hour delay because their captain called out 1 hour before the flight. They did NOTHING to compensate the entire plane, made ppl leave back into a city with their bags, no food, etc. The gate agents handling it could've cared less and told people to call and complain it wasnt their problem. The service was horrible from top to bottom and cost people their entire day. Many missedevents, connecting flights and Alaska all the while didnt even comp a coffee to people theyd stranded from 6am to 6pm ,"
Pros: "Flight crew was wonderful."
Cons: "They ran out of cups......"
Pros: "Movies"
Cons: "lack of Cleanliness, one crew member was rude and pushy (not to me but in her tone and to others),"
Pros: "Friendly crew, clean plane"
Cons: "Go go Wi-Fi was terrible...spotty service for about 20 minutes, but ultimately the crew just shut off the Wi-Fi. Ran out of food 1 hour into the 5 hour flight. were they not expecting a full flight?"
Pros: "Virgin plane, flight crew great"
Cons: "No headphones, no snacks. Tray tables not clean."
Cons: "Our flight was delayed while we waited for a crew member to fly in to cover for a FA that called in sick. Gate agents didn’t provide many updates while we waited. The were only 3 snack items for purchase available on the plane. Seat didn’t recline"
Pros: "Not much."
Cons: "Having to get to the airport 2 hrs then stand around for 3 hrs.. with no place to sit in a crowded waiting room & no food or thoughts for the children. No Water & hot & humid."
Pros: "Liked the boarding process by rows...old school. No Group nonsense."
Cons: "Need more food options for long flights."
Pros: "The flight itself was great."
Cons: "The flight was 2 hours late boarding and we spent another 1/2 hour waiting in line to take off."
Pros: "Boarding was organizedf"
Cons: "Flight delay due to weather"
Pros: "I arrived - finally (though stuck on the runway at SFO as I write this)"
Cons: "Crowded, chaotic boarding area & process at Boston Logan. Checked in seats manually since systems apparently down. An hour delayed (on takeoff) for no apparent reason and delayed waiting for gate on arrival. Seems to happen regularly with Alaska but not JetBlue Broken restroom - should have at the very least let coach customers use First Class restroom rather than get by with one Broken wifi - none the entire flight Limited food which ran out quickly Flight attendants trying but seem harried and confused and not very attentive"
Pros: "On time, quick boarding, overhead bins are easy to get bags into."
Cons: "Logan airport requires that you leave the secure area and change terminals and go through security again to get to other airlines (so does Vancouver BC). This is very inconvenient and unexpected too and adds a huge time element that you have no idea is happening. Avoid it for any transfers."
Pros: "Security check took literally 30 seconds. Boarding was very quick. Flight was delayed due to weather and it arrived at my destination before schedule."
Cons: "No complaints, flight was great!"
Pros: "The free WiFi and selection of movies were good despite not having TVs at every seat. The one in flight dish was good."
Cons: "I paid for a seat that I couldn’t sit in because they moved a woman with two cats next to me and I’m allergic. No one checked if I was okay with it. When I said something, I was moved from my seat instead of the woman with the cats. I was uncomfortable for majority of the trip. I travel often and I have never had to deal with my pet allergies. I won’t be flying with Alaska after this trip."
Pros: "I like the amount of seating and storage space Alaska provides; it seems more abundant than competitors. Also, the staff was kind and concise; that can really make a difference on a long flight. Great Job!"
Pros: "Arrived about a half hour early"
Pros: "Alaska Airlines is the best domestic Airline. However their terminal in Boston leaves a lot to be desired. The ticket agents are not Alaska employees it seems and they don't quite know how to work their computers. The gate area has no restaurants and is extremely disappointing."
Cons: ".The ticket agents are not Alaska employees it seems and they don't quite know how to work their computers. The gate area has no restaurants and is extremely disappointing."
Pros: "The crew was very friendly"
Cons: "Delay that could have been quickly resolved if the crew and mechanics communicated to each other"
Pros: "That we were in the air"
Cons: "That I waited 3.5 hours bc of a delay when I could have been with loved ones not stressing about my flight. Also, how long it took to notify customers. I love Alaska Airlines, but it's the little things that set you apart. Don't lose them!"
Pros: "Timeliness, clean plane and nice attendants"
Cons: "No complaints here!"
Pros: "Good temperature, got a full can of soda which I like! More legroom than my United Airlines return flight."
Cons: "No setback entertainment OR drop down shared screens for movies during the 6hr flight from Boston to Seattle."
Cons: "Was not told about renting device when my iPad device woluld not work. I would have paid if someone told me that renting was an option. I was told sorry " you r old school". REALLY.......?????? I was ready to sign up for Alaska airlines credit card, sine my previous trips have been great. For such a long trip a little entertainment would have been nicw"
Pros: "Crew was nice, food was good although we had to buy it. Got one free drink because of delay."
Cons: "Delays"
Pros: "It is ridiculous to be paying a full fare a BD then be charged for luggage! Worst policy going"
Cons: ".My flight was cancelled in Boston and according to the gate agent it is their policy to not give an explanation. Travelers already tired and anxious about flying this only compounds the problem.They did get me a hotel room,but only issue meal vouchers one at a time. Alaska's ticketing and check in area is only manned for a short time and not on the weekend. Talk abourt a "Catch-22" I would rather have my money back than a flight voucher. I would only use Alaska if it was the only option."
Pros: "The pilot did a great job! His landing was commendable given the high winds Portland was having!"
Cons: "That I can not smoke inside Secure inside of airport security almost missed my flight because I have to go to the street to smoke and then back though tsa"
Pros: "I was late to checking-in the attendant called the boarding door and they gave away my seat but found another one for me and got me home on time"
Pros: "Crew were excellent"
Pros: "Nothing"
Cons: "Everything worst flight experience EVER!!"
Cons: "Seats are a little short for a tall person, long legs, even in the emergency exit aisle. Pan of the seat could be longer for more comfort on long flights."
Pros: "Crew was great!"
Cons: "If JetBlue can provide complimentary TV and music I don't see why Alaska can't do the same."
Pros: "Very attentive staff, it seems like they were constantly walking the aisle to ask if anyone needed anything"
Cons: "The captains were late because they had to be off for ten hours, so that got us in the air late"
Pros: "Nice crew."
Cons: "A 5 1/2 flight and just a tiny bag of pretzels. Bring back meals to flights, with NO extra charge up front or on flight. Planes with tv's built into seats are better. On cross-country trips, movies should be free as well as WiFi. These extra charges are proposterous."
Cons: "You need to get TV's/internet for cross country flights"
Pros: "The staff was great, the food choices were good too. I like healthy food choices."
Cons: "The in flight entertainment is $10 on top of the $50 I spent on checking my bags. With Other airlines, Both were included at no extra cost."
Pros: "Cabin crew was excellent"
Cons: "Nothing"
Cons: "1 hr late taking off but made up most of time in the air"
Pros: "Kosher snacks! Thank you. Screens and outlets at every seat. Safe, controlled Covid protocols including de-boarding. Excellent!"
Pros: "Delta flight took extra precaution to keep all passengers safe before during and after the flight. They communicate effectively during the flight. I will be flying Delta again and again."
Cons: "The trip was great"
Cons: "We arrived around 39 minutes early and the whole process was very smooth"
Pros: "Super friendly and helpful with connections."
Cons: "The music on the plane was a bit much. Lol"
Pros: "Crew was friendly, seats really comfortable!"
Cons: "Headphones sold for $ 2. Headphones preferably free"
Pros: "Calm and safe, just like I like it."
Pros: "The crew was awesome! The steward was engaging and made us all laugh and feel comfortable for a short flight when he didn’t have to. He had a great sense of humor and gave the kids cookies and wings. Something I haven’t seen in many years. He and the pilots were great!"
Cons: "Nothing."
Cons: "The carrots were hard and the bread was cold."
Pros: "Comfortable plane due to few passengers"
Cons: "7 hour delay after flight postponed."
Pros: "Got to my destination without any issues"
Cons: "Seats/seating area are too small, and I'm not a big person."
Cons: "No AC for an hour before takeoff - very uncomfortable. Audio for tv did not work."
Pros: "On this short flight, the flight attendant was wonderful, accommodating special requests and being fully engaged with passengers. On time departure, early arrival, overall a nice quick flight to Duluth."
Cons: "CRJ200 planes are always a bit cramped, and having to gate check anything bigger than a small purse is an inconvenience. Hopefully the fleet will change over to the Embrair planes soon. Beware 'Basic' flyers (cheap tickets): you are not eligible to take an earlier flight even if available."
Cons: "Flight was delayed a bit due to a couple passenger booking/misc issues. 1st class didn’t get gate bevfood service. Oven was busted so my meal wasn’t available. Entertainment console had all channels functional except — not really an issue I just really wanted to have ESPN playing in the background"
Pros: "Son got wings, so was happy."
Cons: "No entertainment."
Cons: "It was late"
Pros: "Good snack selection. Crew was personable."
Pros: "Crew was nice and welcoming"
Cons: "Well, if our plane had been leaving on time it would've been superb."
Cons: "Notify the delay quickly"
Pros: "Helpful"
Cons: "More print media to read on"
Pros: "Crew was great."
Cons: "Couldn’t hear/understand the pilot"
Pros: "Flight attendant in first class was amazing."
Pros: "Jeff was our flight attendant in first class. He is an excellent flight attendant. He has an amazing attitude and his manner made us feel as if we had been friends with him for years."
Cons: "Passengers who pay retail for first class on domestic flights should get access to the Delta lounges even without the AE card. Other airlines do this, and we have come to expect it."
Pros: "The boarding was fast and very well handled."
Cons: "My flight from Chicago was two hours late and that's why I missed the flight from Atlanta to Buenos Aires. No one helped and did not know that the flight was delayed and I had to find a place to sleep. I'm not satisfied with the experience and I have not yet arrived in Argentina because of the whole"
Cons: "It was delayed"
Pros: "N/A"
Cons: "Chinese Eastern did not try to help and solve my problem."
Pros: "It was a smooth boarding, flight and exit out of the plane."
Pros: "Snacks, cleanliness and crew"
Cons: "N/A"
Cons: "From the begging they changed the flights for something totally different. It was a 14 hour trip. Awful"
Cons: "Entertainment app from Go Go didn’t Work."
Pros: "It was a normal flight as well expected."
Pros: "I was with my friend"
Cons: "Delayed 12+ hours"
Pros: "We had a 2 1/2 delay due to mechanical issues but the crews, flight and ground, did a great job. Thanks."
Pros: "I was given a complimentary upgrade."
Cons: "It takes time and worries to find the air train and Aeroflot registration."
Pros: "My flight was great. Boarding was easy and the seats were comfortable."
Pros: "The service was amazing , the staff was honestly friendly and nice"
Pros: "Great service, nice agent friendly"
Cons: "I was unable to fly at all due to a spelling error on my ticket. The airline refused to alter the ticket. Worst experience of my life, ruined my Christmas"
Pros: "Very nice flight and attentive staff. Enjoyed the view of NYC as we flew up the East River, then looped over Nassau County to approach LGA."
Cons: "The male flight attendant who handed out the complimentary drinks and snacks acted a bit strangely. I was very thirsty, and I asked him if I could keep the rest of the can of soda. He neither said yes nor no, but rather completely ignored what I said and just poured my drink and moved on. I was a mildly annoyed, but figured maybe it was policy and he was shy and didn't want to debate the matter. When he took care of the older couple behind us, however, things got really strange. He asked them whether they wanted pretzels or peanuts, but they misheard him and asked for a ginger ale. I happened to know that he did have ginger ale, since my wife had just gotten one, but rather than just pouring the old folks a drink, he repeated himself. "Peanuts or pretzels?" They misheard again and asked him whether he had a diet ginger ale. Again, rather than just pour them the drink, he repeated himself. "Peanuts or pretzels?" This went round and round a few more times -- like a poorly designed computer UI that refuses to accept anything except the correct input -- before the old couple finally figured out the disconnect and picked their snacks before their drinks. Very weird."
Pros: "Nothing"
Cons: "Cancelled my flight because I lost one of the arms"
Cons: "Layover"
Pros: "Short flight"
Cons: "Too cold Not friendly boarding agent"
Pros: "N/A"
Cons: "2.5 hour delay for no apparent reason at first (supposed mechanical issues with plane) and then waited on plane at gate for a missing pilot who never got picked up from his airport and got stuck in Chicago traffic trying to get to O'Hare. Eventually had to take pilot from another flight before leaving at 8:45 when flight was scheduled for 6:00am."
Cons: "Had a death in the family and no one would help me get back home"
Pros: "Seats were comfortable. Snacks!!! Nice flight crew."
Cons: "I liked everything."
Pros: "The Gogo Inflight wifi and entertainment did not work for even a minute. I choose flights based on their amenities and this one had offered full WIFI service which swayed me to choose to fly with Delta. I'm not sure who is to blame about this issue but I'm pretty frustrated that it was completely dysfunctional."
Pros: "The movie I watched was pleasant, although I had trouble hearing it because of the situation described below."
Cons: "There was a family seated behind us with several crying, loud children. We were miserable. Even my headphones with a Mozart sonata cranked up to loud did little to mask the noise. Probably not Dela'a fault, but the crew did nothing to mitigate the problem."
Cons: "Plane was sat broken at gate and needed part to be flown in. 150 minutes delayed. Not acceptable."
Pros: "No fee to get on an earlier flught"
Cons: "When I tried to rebook online this flight was not an option"
Pros: "They were friendly. Seats are rarely comfortable..."
Cons: "I think all planes need better leg room...."
Cons: "Everything was good!"
Pros: "Flight attendants were absolutely amazing!!!!! They made the trip very enjoyable!"
Cons: "Food!"
Pros: "Crew was nice; not out of their way, though."
Cons: "Food, movies, space"
Pros: "Great crew"
Cons: "Very uncomfortable seats"
Cons: "Great"
Pros: "Entertainment."
Cons: "Nothing."
Cons: "Delayed Swiss flight 8 tue 12 dec 2017 led to catastrophe"
Pros: "Quick"
Cons: "Being lied to and saying it was weather related instead of the truth of it was a mechanical issue so United didn’t have to pay for hotel!!!"
Pros: "Nothing! I will make sure to never use United for any flight from now on."
Cons: "Everything! The customer service was terrible and cold. Non refundable tickets should state in huge red writing that they are non refundable!!!"
Cons: "You better get rid of basic economy."
Pros: "Fast loading/unloading."
Cons: "No drinks. No entertainment."
Pros: "Flight was in time and smooth. Crew was friendly and active in the cabin."
Cons: "Seats were very close together and leg room was very limited. It was difficult to get in and out of the window seat area."
Pros: "No delay, friendly crew"
Pros: "Boarding was fine, no delays. Crew was nice, no complaints there! I had an empty seat next to me, so could stretch out. Luckily I brought a blanket with me, since I know from previous experience it's always too cold on planes."
Cons: "The entertainment didn't work on my iPad or my iPhone. I kept getting an error. Also, the WIFI is way too expensive."
Cons: "Big man in a small plane is uncomfortable. Add in a second big man as a seatmate and its even more uncomfortable"
Cons: "United has new seats that have absolutely no leg room and are very uncomfortable. I will make sure never to fly United again. This was 3 hours of agony."
Pros: "Associates were nice and knowledgeable. The airplanes were comfortable. Love the onetime performance of scheduling."
Cons: "Unite Airline performance wasn't the good. Also, there was nobody in Chicago to help us with the transferring process."
Pros: "Great captain and crew."
Cons: "I prefer the entertainment on your own device."
Pros: "I had the exit window and that made a huge difference in my trip as I am a 6ft tall woman who is all legs."
Cons: "It was slightly turbulent and TSA at O'hare airport are the rudest and laziest humans on the planet."
Pros: "Snacks and drink"
Cons: "Average"
Pros: "Flight was on time."
Cons: "Seats are uncomfortable and cramped."
Cons: "The pilot's landing was way too fast. I was sure that the plane would come to a stop in Hwy 280 at the end of the Asheville runway. That plane probably needed a major brake job after that landing. We ended up at the absolute very end of the runway!"
Pros: "Very friendly, efficient staff"
Cons: "Plane was late to airport. Then there was a huge rush to get us boarded and it was very stressful if we were going to fly or not"
Pros: "Wasn't thrown off"
Cons: "Another delayed flight with United"
Cons: "They might as well have thrown us in a car trunk the crew was very unaccommodating they didn't really care about us and the room legroom is ridiculously smal. On the connecting flight, the last flight the plane was two thirds empty and the crew made us sit in our assigned seats, crammed together telling us that if we want to sit in a seat with more legroom we have to pay $180"
Cons: "Too many seats too close together. The entire trip was too hot and stuffy. The flight attendants showed minimal care about the uncomfortable hot and stuffy environment."
Pros: "Everything went smoothly"
Cons: "Good options are terrible"
Cons: "The United mobile app as well as my emails stated that the gate was B3. Upon arriving at gate B3 and attempting to board, I was alerted that I was at the incorrect gate. The gate was switched to C11. However, my app did not alert me nore did it reflect the gate change. I didn't receive a text or email update. I had to run to the different concourse nearly missing the fling."
Pros: "Crew was attentive."
Cons: "From Gregory at the check in being rude and anything but welcoming, to seats in first class needing replaced, this was anything BUT a first class trip. This was my second time giving United a chance as I normally fly Delta. I don't think I'll make that mistake again. I understand a late night flight doesn't have a meal service, but snacks of chips and bananas is not my idea of how you should serve Firat Class passengers. I would have a hard time recommending anyone choose United as their airline. Time for an upgrade of not just the seats, but overall customer service."
Cons: "Turbulence was insane"
Pros: "We'll coordinated."
Pros: "Stuardis"
Cons: "The seats were terribly uncomfortable (including her flight to Chicago). The cushion made me slide down the seat and could not get comfortable."
Pros: "My flight in was smooth, seamless and amazing. The crew was so lovely."
Cons: "My flight out was a shot show that included a four hour delay and frantic running to gate changes. The staff was very unhelpful. The snack was awful."
Cons: "I went on this trip as an veterinary humanitarian out reach. I was also guardian to one high school student so that she might have an experience of such to guild her future. Her flight was missed booked to leave after mine, I attempted to rebook my flight with Luthansia but they would not let me me even partial rebook. I attempted a number of times to rebook the flight but their solution was extreme financial gain for them when more reasonable alternative could have been arranged. They canceled my entire return flight and left me stranded. I had to piece together a return flight on a shoe string budget. Thankfully American Airlines was understanding for it appears Luthansia and United are not."
Pros: "In flight entertainment worked. Staff was friendly."
Cons: "I had no issue with the delay, things happen. I was dealing with a knee injury and the gate plan had us all over the airport. It was quite frustrating to get to a gate in another terminal only to get told we were being moved back to the terminal we had just come from! Then that gate was changed again, involving another long walk on said bad knee!"
Pros: "crew was friendly and wonderful - pilots were great."
Cons: "they over-sold my flight and i find that absolutely unacceptable. I know (or i hope) this has nothing to do with Kayak, but it almost completely ruined my trip home to visit my sick father. This industry needs to stop this immediately. It happens far too often, and I know it's no accident."
Cons: "2.5 hour delay. No working bathrooms. Couldn't hear the tv and headphones that they gave out were useless."
Pros: "The crew was awesome and the flight wasn't bad at all"
Cons: "It was suggested that I didn't bring my carry on with me so I left it to be voluntarily checked and it came back ripped"
Cons: "flight was delayed for over 5 hours and gate was changed over 6 times"
Cons: "Flight was delayed due to severl technical issues. Crew at least offer free drinks or snacks for the five hour delay."
Pros: "Nice clean planes and seat, on time performance"
Cons: "The flight attendant was hard to understand"
Pros: "Nothing"
Cons: "I was angry that I had to fly to Houston before heading to Phoenix which made my arrival in AZ much later than I had planned. My flight had been rescheduled since I missed my flight the night before because the first flight had been delayed. So the new flight was a longer trip because of the extra layover. The overall flight was a mess."
Pros: "That the plane actually took off and landed fine."
Cons: "Flight delayed almost 2 hours. I booked this flight on this airline as my previous flight on a different airline was delayed over 7 hours."
Pros: "Nice crew and boarding staff. The plane was repaired rather than the flight being cancelled."
Cons: "No airconditioning on the ground so the extra time on the tarmac was very uncomfortable. While taxiing, a screen went blank, so the plane returned to the terminal, deplaned, and there was a two hour delay for the repair."
Pros: "Flight itself was fine. Major delay resulted in arriving one day later than planned, additional transportation cost, unplanned, and unplanned parking fees. No travel voucher was offered and when I asked was told it was not possible to issue a travel voucher."
Cons: "There should be some free tv"
Cons: "Very unorganized, they over booked the flight and the crew was very rude. I will not book any flights with them again."

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$204
3/12Sun
1 stopUnited Airlines
5h 15mBWI-DLH
$204
7/2Sun
nonstopUnited Airlines
1h 28mORD-DLH
$205
3/5Sun
2 stopsMultiple Airlines
19h 20mBWI-DLH
$207
3/26Sun
2 stopsMultiple Airlines
22h 39mBWI-DLH
$208
3/5Sun
2 stopsMultiple Airlines
19h 20mBWI-DLH
$224

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Flights to Duluth

Destination:

Duluth (DLH)United States

Return flight deals:

Duluth - North America

Cabin classes:

$528
$869
$643
$131

Browse origins:

Browse destinations:

$133