$252+ Cheap flights from Colorado to Duluth (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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — DLH
Nov 18 — Nov 251
Round-trip
1 adult, Economy
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Find cheap flights from Colorado 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 Colorado to Duluth
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Cheapest flights from Colorado to DuluthExplore the most affordable flight options available from Colorado to Duluth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 19, 2026.
Explore the most affordable flight options available from Colorado to Duluth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 19, 2026.
This United Airlines deal was found by Cheapflights users on 10/14. 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 11/117:45 am -
1 stop5h 45m
Sat 11/213:06 pm -
1 stop7h 43m
Deal found 10/14![United Airlines logo]()
$346
This United Airlines deal was found by Cheapflights users on 10/14. 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 10/287:45 am -
1 stop5h 45m
Tue 11/36:23 am -
1 stop7h 22m
Deal found 10/14![United Airlines logo]()
$386
This Delta deal was found by Cheapflights users on 10/16. 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.
Mon 10/2611:07 am -
1 stop7h 05m
Sat 10/314:21 pm -
1 stop4h 45m
Deal found 10/16![Delta logo]()
$417
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.
Fri 10/2311:07 am -
1 stop7h 05m
Sun 10/255:14 am -
1 stop5h 48m
Deal found 10/18![Delta logo]()
$453
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.
Wed 11/254:14 pm -
1 stop5h 41m
Mon 11/304:25 pm -
1 stop4h 46m
Deal found 10/19![Delta logo]()
$456
This United Airlines deal was found by Cheapflights users on 10/15. 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 10/307:45 am -
1 stop5h 45m
Tue 11/36:23 am -
1 stop7h 22m
Deal found 10/15![United Airlines logo]()
$487
This United Airlines deal was found by Cheapflights users on 10/15. 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 10/223:48 pm -
1 stop6h 34m
Mon 10/263:06 pm -
1 stop8h 38m
Deal found 10/15![United Airlines logo]()
$516
This United Airlines deal was found by Cheapflights users on 10/15. 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.
Tue 10/204:40 pm -
1 stop5h 42m
Mon 10/263:06 pm -
1 stop7h 42m
Deal found 10/15![United Airlines logo]()
$531
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/114:29 pm -
1 stop5h 45m
Thu 11/1211:16 am -
1 stop6h 07m
Deal found 10/18![United Airlines logo]()
$546
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/135:30 am -
2 stops8h 00m
Sun 11/223:06 pm -
2 stops9h 53m
Deal found 10/18![United Airlines logo]()
$572
This United Airlines deal was found by Cheapflights users on 10/16. 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 11/121:20 pm -
2 stops8h 54m
Thu 11/193:06 pm -
1 stop7h 51m
Deal found 10/16![United Airlines logo]()
$673
This Delta deal was found by Cheapflights users on 10/16. 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 11/126:00 am -
2 stops12h 09m
Thu 11/194:25 pm -
2 stops6h 57m
Deal found 10/16![Delta logo]()
$719
Best flights from Colorado to DuluthDiscover carefully curated flight deals from Colorado to Duluth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 19, 2026.
Discover carefully curated flight deals from Colorado to Duluth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 19, 2026.
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/711:15 am -
1 stop6h 16m
Mon 1/1111:30 am -
1 stop7h 08m
Deal found 10/18![United Airlines logo]()
$448
This United Airlines deal was found by Cheapflights users on 10/17. 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 1/2310:40 am -
2 stops11h 48m
Wed 1/272:59 pm -
1 stop8h 00m
Deal found 10/17![United Airlines logo]()
$454
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/114:29 pm -
1 stop5h 45m
Thu 11/1211:16 am -
1 stop6h 07m
Deal found 10/18![United Airlines logo]()
$546
This United Airlines deal was found by Cheapflights users on 10/14. 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 11/119:35 am -
2 stops12h 39m
Sat 11/213:06 pm -
1 stop8h 24m
Deal found 10/14![United Airlines logo]()
$566
This United Airlines deal was found by Cheapflights users on 10/15. 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 12/238:57 pm -
1 stop25h 31m
Wed 1/65:50 am -
1 stop7h 55m
Deal found 10/15![United Airlines logo]()
$616
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/24:24 pm -
1 stop5h 50m
Fri 11/611:16 am -
1 stop7h 33m
Deal found 10/18![United Airlines logo]()
$626
This United Airlines deal was found by Cheapflights users on 10/16. 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 11/121:20 pm -
2 stops8h 54m
Thu 11/193:06 pm -
1 stop7h 51m
Deal found 10/16![United Airlines logo]()
$673
Last-minute flights from Colorado to DuluthDiscover last-minute flight deals from Colorado to Duluth. Data last updated October 19, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado to Duluth. Data last updated October 19, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/15. 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.
Tue 10/204:40 pm -
1 stop5h 42m
Mon 10/263:06 pm -
1 stop7h 42m
Deal found 10/15![United Airlines logo]()
$531
This United Airlines deal was found by Cheapflights users on 10/15. 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 10/223:48 pm -
1 stop6h 34m
Mon 10/263:06 pm -
1 stop8h 38m
Deal found 10/15![United Airlines logo]()
$516
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.
Fri 10/2311:07 am -
1 stop7h 05m
Sun 10/255:14 am -
1 stop5h 48m
Deal found 10/18![Delta logo]()
$453
This Delta deal was found by Cheapflights users on 10/16. 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.
Mon 10/2611:07 am -
1 stop7h 05m
Sat 10/314:21 pm -
1 stop4h 45m
Deal found 10/16![Delta logo]()
$417
This United Airlines deal was found by Cheapflights users on 10/14. 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 10/287:45 am -
1 stop5h 45m
Tue 11/36:23 am -
1 stop7h 22m
Deal found 10/14![United Airlines logo]()
$386
This United Airlines deal was found by Cheapflights users on 10/15. 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 10/307:45 am -
1 stop5h 45m
Tue 11/36:23 am -
1 stop7h 22m
Deal found 10/15![United Airlines logo]()
$487
This United Airlines deal was found by Cheapflights users on 10/14. 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 11/117:45 am -
1 stop5h 45m
Sat 11/213:06 pm -
1 stop7h 43m
Deal found 10/14![United Airlines logo]()
$346
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/114:29 pm -
1 stop5h 45m
Thu 11/1211:16 am -
1 stop6h 07m
Deal found 10/18![United Airlines logo]()
$546
This United Airlines deal was found by Cheapflights users on 10/16. 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 11/121:20 pm -
2 stops8h 54m
Thu 11/193:06 pm -
1 stop7h 51m
Deal found 10/16![United Airlines logo]()
$673
This Delta deal was found by Cheapflights users on 10/16. 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 11/126:00 am -
2 stops12h 09m
Thu 11/194:25 pm -
2 stops6h 57m
Deal found 10/16![Delta logo]()
$719
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/135:30 am -
2 stops8h 00m
Sun 11/223:06 pm -
2 stops9h 53m
Deal found 10/18![United Airlines logo]()
$572
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.
Wed 11/254:14 pm -
1 stop5h 41m
Mon 11/304:25 pm -
1 stop4h 46m
Deal found 10/19![Delta logo]()
$456
One-way flights from Colorado to DuluthSearch for one-way flight options from Colorado to Duluth. Find affordable one-way fares based on user searches. Data last updated October 19, 2026.
Search for one-way flight options from Colorado to Duluth. Find affordable one-way fares based on user searches. Data last updated October 19, 2026.
This United Airlines deal was found by Cheapflights users on 10/16. 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 11/126:00 am -
1 stop7h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![United Airlines logo]()
$252
This United Airlines deal was found by Cheapflights users on 10/15. 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 10/296:00 am -
1 stop7h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![United Airlines logo]()
$354
This United Airlines deal was found by Cheapflights users on 10/16. 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 10/16![United Airlines logo]()
$433
This Delta deal was found by Cheapflights users on 10/16. 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 12/206:30 am -
1 stop4h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Delta logo]()
$444
This United Airlines deal was found by Cheapflights users on 10/16. 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 12/209:54 am -
2 stops27h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![United Airlines logo]()
$866
Find flight deals from Colorado to Duluth
Keep the following information in mind while searching for Colorado to Duluth flight deals. Data was last updated October 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $346 (United Airlines) |
One-way from | $252 (United Airlines) |
Popular in | June |
Cheapest in | April |
Average price | $438 |
Cheapflights Fare Finder
Customize your flight search to find flights from Colorado 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 October 19, 2026.
Use the filters below to find and compare flights from Colorado to Duluth that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
DenverDuluth
DEN Denver Intl - DLH Duluth Intl
DENDLH
Denver Intl
Thu 11/12
6:00 am-2:30 pm
1 stop7h 30m
Duluth Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$252
DenverDuluth
DEN Denver Intl - DLH Duluth Intl
DENDLH
Denver Intl
Thu 10/29
6:00 am-2:30 pm
1 stop7h 30m
Duluth Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$354
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
$433
DenverDuluth
DEN Denver Intl - DLH Duluth Intl
DENDLH
Denver Intl
Thu 1/7
11:15 am-6:31 pm
1 stop6h 16m
Duluth Intl
Mon 1/11
11:30 am-5:38 pm
1 stop7h 08m
$448
Colorado SpringsDuluth
COS Colorado Springs - DLH Duluth Intl
COSDLH
Colorado Springs
Sat 1/23
10:40 am-11:28 pm
2 stops11h 48m
Duluth Intl
Wed 1/27
2:59 pm-9:59 pm
1 stop8h 00m
$454
DenverDuluth
DEN Denver Intl - DLH Duluth Intl
DENDLH
Denver Intl
Wed 11/11
4:29 pm-11:14 pm
1 stop5h 45m
Duluth Intl
Thu 11/12
11:16 am-4:23 pm
1 stop6h 07m
$546
DenverDuluth
DEN Denver Intl - DLH Duluth Intl
DENDLH
Denver Intl
Wed 11/11
9:35 am-11:14 pm
2 stops12h 39m
Duluth Intl
Sat 11/21
3:06 pm-10:30 pm
1 stop8h 24m
$566
DenverDuluth
DEN Denver Intl - DLH Duluth Intl
DENDLH
Denver Intl
Wed 12/23
8:57 pm-11:28 pm
1 stop25h 31m
Duluth Intl
Wed 1/6
5:50 am-12:45 pm
1 stop7h 55m
$616
DenverDuluth
DEN Denver Intl - DLH Duluth Intl
DENDLH
Denver Intl
Mon 11/2
4:24 pm-11:14 pm
1 stop5h 50m
Duluth Intl
Fri 11/6
11:16 am-5:49 pm
1 stop7h 33m
$626
Colorado SpringsDuluth
COS Colorado Springs - DLH Duluth Intl
COSDLH
Colorado Springs
Thu 11/12
1:20 pm-11:14 pm
2 stops8h 54m
Duluth Intl
Thu 11/19
3:06 pm-9:57 pm
1 stop7h 51m
$673
Sorted by cheapest first
Best time to book a flight from Colorado to Duluth
Have a flexible travel schedule? Discover the best time to fly to Duluth from Colorado with our price prediction graph.
DEN-DLH
COS-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 Colorado to Duluth
USCO-DLH
DEN-DLH
COS-DLH
How much does it cost to fly round-trip from Colorado to Duluth?
Airfare is below average for this route at the moment.
Colorado to Duluth flights typically cost between $388 and $452 in November.The cheapest round-trip price found within the last 5 days was $346 on United Airlines (Nov 11-Nov 21).
Related info for your journey
Find useful and relevant information for your journey from Colorado 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
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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 October 19, 2026.
Search flights from Colorado to Duluth by cabin class
Find flights from Colorado to Duluth, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Colorado and Duluth flights
Browse other Colorado and Duluth flight options. Last updated on October 19, 2026.
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Colorado to Duluth flights
Consider these flights traveling from Colorado to Duluth.
Top 2 airlines flying from Colorado to Duluth
Discover the top 2 airlines that operate flights from Colorado 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 October 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$218 | Average$544 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$246 | Average$514 | FlexibilityNo cancel fee | On-timeN/A |