$303+ Cheap flights from Denver to Duluth (DEN - DLH)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — DLH
Oct 27 — Nov 31
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Denver to Duluth 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 Denver to Duluth
Cheapest
Best
Last-minute
One-way
Cheapest flights from Denver to DuluthExplore the most affordable flight options available from Denver to Duluth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 27, 2026.
Explore the most affordable flight options available from Denver to Duluth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 27, 2026.
This United Airlines deal was found by Cheapflights users on 9/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/174:38 pm -
1 stop6h 01m
Fri 10/233:10 pm -
1 stop5h 35m
Deal found 9/25![United Airlines logo]()
$328
This United Airlines deal was found by Cheapflights users on 9/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/164:40 pm -
1 stop5h 42m
Thu 10/227:45 am -
1 stop7h 47m
Deal found 9/26![United Airlines logo]()
$343
This Delta deal was found by Cheapflights users on 9/25. 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.
Fri 12/41:26 pm -
1 stop4h 56m
Sat 12/1212:18 pm -
1 stop4h 44m
Deal found 9/25![Delta logo]()
$344
This Delta deal was found by Cheapflights users on 9/22. 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 10/76:05 am -
1 stop4h 39m
Sun 10/115:14 am -
1 stop5h 48m
Deal found 9/22![Delta logo]()
$376
This Delta deal was found by Cheapflights users on 9/22. 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.
Tue 10/206:05 am -
1 stop4h 39m
Sun 10/255:14 am -
1 stop5h 48m
Deal found 9/22![Delta logo]()
$386
This United Airlines deal was found by Cheapflights users on 9/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/33:48 pm -
1 stop6h 51m
Sat 10/103:10 pm -
1 stop5h 35m
Deal found 9/22![United Airlines logo]()
$388
This United Airlines deal was found by Cheapflights users on 9/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/234:00 pm -
1 stop6h 20m
Sat 9/263:10 pm -
1 stop7h 34m
Deal found 9/22![United Airlines logo]()
$448
This Delta deal was found by Cheapflights users on 9/23. 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 9/306:15 am -
1 stop3h 48m
Sat 10/35:15 am -
1 stop5h 50m
Deal found 9/23![Delta logo]()
$463
This Delta deal was found by Cheapflights users on 9/23. 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.
Tue 9/295:45 pm -
1 stop3h 50m
Sat 10/35:15 am -
1 stop5h 50m
Deal found 9/23![Delta logo]()
$479
This United Airlines deal was found by Cheapflights users on 9/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/23:48 pm -
1 stop6h 34m
Mon 10/57:45 am -
1 stop6h 00m
Deal found 9/25![United Airlines logo]()
$495
Best flights from Denver to DuluthDiscover carefully curated flight deals from Denver to Duluth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 27, 2026.
Discover carefully curated flight deals from Denver to Duluth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 27, 2026.
This United Airlines deal was found by Cheapflights users on 9/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/611:15 am -
1 stop5h 36m
Tue 1/1211:08 am -
1 stop6h 24m
Deal found 9/26![United Airlines logo]()
$328
This Delta deal was found by Cheapflights users on 9/25. 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 2/245:44 pm -
1 stop4h 04m
Mon 3/14:15 pm -
1 stop4h 45m
Deal found 9/25![Delta logo]()
$344
This United Airlines deal was found by Cheapflights users on 9/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/164:40 pm -
1 stop5h 42m
Thu 10/227:45 am -
1 stop7h 47m
Deal found 9/26![United Airlines logo]()
$343
This Delta deal was found by Cheapflights users on 9/24. 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.
Fri 12/41:26 pm -
1 stop4h 56m
Sat 12/1212:18 pm -
1 stop4h 44m
Deal found 9/24![Delta logo]()
$344
This Delta deal was found by Cheapflights users on 9/22. 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 10/76:05 am -
1 stop4h 39m
Sun 10/115:14 am -
1 stop5h 48m
Deal found 9/22![Delta logo]()
$376
This Delta deal was found by Cheapflights users on 9/22. 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.
Tue 10/206:05 am -
1 stop4h 39m
Sun 10/255:14 am -
1 stop5h 48m
Deal found 9/22![Delta logo]()
$386
This United Airlines deal was found by Cheapflights users on 9/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/79:25 am -
1 stop7h 26m
Mon 1/1111:08 am -
1 stop7h 54m
Deal found 9/26![United Airlines logo]()
$428
This United Airlines deal was found by Cheapflights users on 9/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/207:12 pm -
1 stop14h 27m
Mon 11/233:06 pm -
1 stop8h 38m
Deal found 9/25![United Airlines logo]()
$605
Last-minute flights from Denver to DuluthDiscover last-minute flight deals from Denver to Duluth. Data last updated September 27, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Duluth. Data last updated September 27, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/23. 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.
Tue 9/295:45 pm -
1 stop3h 50m
Sat 10/35:15 am -
1 stop5h 50m
Deal found 9/23![Delta logo]()
$479
This Delta deal was found by Cheapflights users on 9/23. 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 9/306:15 am -
1 stop3h 48m
Sat 10/35:15 am -
1 stop5h 50m
Deal found 9/23![Delta logo]()
$463
This United Airlines deal was found by Cheapflights users on 9/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/302:49 pm -
1 stop7h 33m
Tue 10/67:45 am -
1 stop8h 32m
Deal found 9/23![United Airlines logo]()
$518
This United Airlines deal was found by Cheapflights users on 9/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/23:48 pm -
1 stop6h 34m
Mon 10/57:45 am -
1 stop6h 00m
Deal found 9/25![United Airlines logo]()
$495
This United Airlines deal was found by Cheapflights users on 9/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/33:48 pm -
1 stop6h 51m
Sat 10/103:10 pm -
1 stop5h 35m
Deal found 9/22![United Airlines logo]()
$388
This Delta deal was found by Cheapflights users on 9/22. 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 10/76:05 am -
1 stop4h 39m
Sun 10/115:14 am -
1 stop5h 48m
Deal found 9/22![Delta logo]()
$376
This United Airlines deal was found by Cheapflights users on 9/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/164:40 pm -
1 stop5h 42m
Thu 10/227:45 am -
1 stop7h 47m
Deal found 9/26![United Airlines logo]()
$343
This United Airlines deal was found by Cheapflights users on 9/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/174:38 pm -
1 stop6h 01m
Fri 10/233:10 pm -
1 stop5h 35m
Deal found 9/25![United Airlines logo]()
$328
This Delta deal was found by Cheapflights users on 9/26. 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 10/176:05 am -
1 stop4h 39m
Fri 10/2312:35 pm -
1 stop4h 14m
Deal found 9/26![Delta logo]()
$506
This Delta deal was found by Cheapflights users on 9/22. 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.
Tue 10/206:05 am -
1 stop4h 39m
Sun 10/255:14 am -
1 stop5h 48m
Deal found 9/22![Delta logo]()
$386
One-way flights from Denver to DuluthSearch for one-way flight options from Denver to Duluth. Find affordable one-way fares based on user searches. Data last updated September 27, 2026.
Search for one-way flight options from Denver to Duluth. Find affordable one-way fares based on user searches. Data last updated September 27, 2026.
This Delta deal was found by Cheapflights users on 9/25. 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 10/1011:07 am -
1 stop7h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Delta logo]()
$303
This United Airlines deal was found by Cheapflights users on 9/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/256:00 am -
1 stop7h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![United Airlines logo]()
$313
This Delta deal was found by Cheapflights users on 9/27. 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.
Sun 10/256:05 am -
1 stop4h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Delta logo]()
$344
This United Airlines deal was found by Cheapflights users on 9/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/104:38 pm -
1 stop6h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![United Airlines logo]()
$353
This United Airlines deal was found by Cheapflights users on 9/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/48:51 am -
1 stop8h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![United Airlines logo]()
$428
This United Airlines deal was found by Cheapflights users on 9/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1611:52 pm -
2 stops9h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![United Airlines logo]()
$474
Find flight deals from Denver to Duluth
Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Duluth (DLH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $328 (United Airlines) |
One-way from | $303 (Delta) |
Popular in | June |
Cheapest in | December |
Average price | $552 |
Cheapflights Fare Finder
Customize your flight search to find flights from Denver to Duluth 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 7,457,451 searches. Data last updated September 27, 2026.
Use the filters below to find and compare flights from Denver to Duluth that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DenverDuluth
DEN Denver Intl - DLH Duluth Intl
DENDLH
Denver Intl
Sat 10/10
11:07 am-7:12 pm
1 stop7h 05m
Duluth Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$303
DenverDuluth
DEN Denver Intl - DLH Duluth Intl
DENDLH
Denver Intl
Sun 10/25
6:00 am-2:30 pm
1 stop7h 30m
Duluth Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$313
DenverDuluth
DEN Denver Intl - DLH Duluth Intl
DENDLH
Denver Intl
Wed 1/6
11:15 am-5:51 pm
1 stop5h 36m
Duluth Intl
Tue 1/12
11:08 am-4:32 pm
1 stop6h 24m
$328
DenverDuluth
DEN Denver Intl - DLH Duluth Intl
DENDLH
Denver Intl
Fri 10/16
4:40 pm-11:22 pm
1 stop5h 42m
Duluth Intl
Thu 10/22
7:45 am-2:32 pm
1 stop7h 47m
$343
Quickest round-trip
DenverDuluth
DEN Denver Intl - DLH Duluth Intl
DENDLH
Denver Intl
Sun 10/25
6:05 am-11:44 am
1 stop4h 39m
Duluth Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$344
DenverDuluth
DEN Denver Intl - DLH Duluth Intl
DENDLH
Denver Intl
Wed 2/24
5:44 pm-10:48 pm
1 stop4h 04m
Duluth Intl
Mon 3/1
4:15 pm-8:00 pm
1 stop4h 45m
$344
DenverDuluth
DEN Denver Intl - DLH Duluth Intl
DENDLH
Denver Intl
Fri 12/4
1:26 pm-7:22 pm
1 stop4h 56m
Duluth Intl
Sat 12/12
12:18 pm-4:02 pm
1 stop4h 44m
$344
DenverDuluth
DEN Denver Intl - DLH Duluth Intl
DENDLH
Denver Intl
Sat 10/10
4:38 pm-11:39 pm
1 stop6h 01m
Duluth Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$353
DenverDuluth
DEN Denver Intl - DLH Duluth Intl
DENDLH
Denver Intl
Wed 10/7
6:05 am-11:44 am
1 stop4h 39m
Duluth Intl
Sun 10/11
5:14 am-10:02 am
1 stop5h 48m
$376
DenverDuluth
DEN Denver Intl - DLH Duluth Intl
DENDLH
Denver Intl
Tue 10/20
6:05 am-11:44 am
1 stop4h 39m
Duluth Intl
Sun 10/25
5:14 am-10:02 am
1 stop5h 48m
$386
Showing 1-10 of 14 resultsSorted by cheapest first
Compare providers for flights from Denver to Duluth
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Duluth in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Denver-Duluth flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Duluth flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Duluth flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Denver-Duluth flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Duluth flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Denver to Duluth
Have a flexible travel schedule? Discover the best time to fly to Duluth from Denver with our price prediction graph.
DEN-DLH
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 Denver to Duluth
Reviews of airlines servicing Duluth
Get insights into the airlines that provide service to Duluth. 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 Duluth. Reviews last updated September 27, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andSun Country Air from Denver to Duluth. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Overall
7.8
Reviews
1 / 20
4.0
OkayAnonymous,Aug 2023
BDL - MSP
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Overall
7.8
Reviews
1 / 20
4.0
OkayAnonymous,Aug 2023
BDL - MSP
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Overall
7.8
Reviews
1 / 20
4.0
OkayAnonymous,Aug 2023
BDL - MSP
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Overall
7.8
Reviews
1 / 20
4.0
OkayAnonymous,Aug 2023
BDL - MSP
Related info for your journey
Find useful and relevant information for your journey from Denver to Duluth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Duluth?
Book flights to Duluth if you plan to visit one of these locationsTwo Harbors
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
Complete your trip
Duluth flight routes
Flights by cabin class
Other flight options
Other flights from Denver
Popular flights
Alternative routes for Denver to Duluth
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Duluth by adding a car rental and/or hotel reservation to your travel itinerary.
Other flights to Duluth
Explore flights to Duluth departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 27, 2026.
Search flights from Denver to Duluth by cabin class
Find flights from Denver to Duluth, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Denver and Duluth flights
Browse other Denver and Duluth flight options. Last updated on September 27, 2026.
Other flights from Denver
Browse through other flights departing from Denver. Flights are based on user searches made on Cheapflights and were last updated on September 27, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Denver to Duluth
Discover the top 3 airlines that operate flights from Denver to Duluth. 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 7,457,451 searches. Data last updated September 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$68 | Average$120 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$218 | Average$544 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$238 | Average$514 | FlexibilityNo cancel fee | On-timeN/A |