$178+ Cheap flights from Duluth (DLH) to Colorado
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 7/17. Fares are subject to change and may not be available on all flights or dates of travel.
DLH — DEN
Jun 24 — Jul 11
Round-trip
1 adult, Economy
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Cheapest flights from Duluth to ColoradoExplore the most affordable flight options available from Duluth to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 25, 2026.
Explore the most affordable flight options available from Duluth to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 25, 2026.
This Delta deal was found by Cheapflights users on 5/23. 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 6/165:00 am
DLH
- DEN
1 stop4h 03m
Delta
Tue 6/236:00 am
DEN
- DLH
1 stop4h 08m
Delta
Deal found 5/23![Delta logo]()
$298
This Delta deal was found by Cheapflights users on 5/20. 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 9/2412:00 pm
DLH
- DEN
1 stop4h 31m
Delta
Mon 9/286:55 pm
DEN
- DLH
1 stop3h 43m
Delta
Deal found 5/20![Delta logo]()
$318
This Delta deal was found by Cheapflights users on 5/23. 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.
Mon 8/38:18 am
DLH
- DEN
1 stop4h 48m
Delta
Wed 8/121:00 pm
DEN
- DLH
1 stop5h 44m
Delta
Deal found 5/23![Delta logo]()
$363
This Delta deal was found by Cheapflights users on 5/23. 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.
Mon 8/35:15 am
DLH
- DEN
2 stops14h 00m
Delta
Thu 8/136:00 am
DEN
- DLH
1 stop4h 01m
Delta
Deal found 5/23![Delta logo]()
$371
This United Airlines deal was found by Cheapflights users on 5/20. 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 10/285:00 am
DLH
- DEN
1 stop8h 24m
United Airlines
Sat 10/316:15 am
DEN
- DLH
1 stop7h 18m
United Airlines
Deal found 5/20![United Airlines logo]()
$378
This Delta deal was found by Cheapflights users on 5/24. 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.
Wed 8/194:11 pm
DLH
- DEN
1 stop4h 40m
Delta
Sun 8/236:00 am
DEN
- DLH
1 stop4h 01m
Delta
Deal found 5/24![Delta logo]()
$392
This Delta deal was found by Cheapflights users on 5/23. 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.
Thu 8/68:18 am
DLH
- DEN
1 stop16h 16m
Delta
Tue 8/116:00 am
DEN
- DLH
1 stop4h 01m
Delta
Deal found 5/23![Delta logo]()
$401
This Delta deal was found by Cheapflights users on 5/23. 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 8/55:15 am
DLH
- DEN
2 stops14h 00m
Delta
Thu 8/136:00 am
DEN
- DLH
1 stop4h 01m
Delta
Deal found 5/23![Delta logo]()
$402
This Delta deal was found by Cheapflights users on 5/23. 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.
Thu 5/285:15 am
DLH
- DEN
1 stop6h 05m
Delta
Sat 5/306:00 am
DEN
- DLH
1 stop5h 04m
Delta
Deal found 5/23![Delta logo]()
$403
This Delta deal was found by Cheapflights users on 5/23. 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.
Mon 8/38:18 am
DLH
- DEN
1 stop4h 48m
Delta
Mon 8/106:00 am
DEN
- DLH
1 stop4h 01m
Delta
Deal found 5/23![Delta logo]()
$407
This Delta deal was found by Cheapflights users on 5/20. 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 5/215:15 am
DLH
- DEN
1 stop3h 46m
Delta
Sun 5/249:12 am
DEN
- DLH
1 stop5h 36m
Delta
Deal found 5/20![Delta logo]()
$418
Best flights from Duluth to ColoradoDiscover carefully curated flight deals from Duluth to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 25, 2026.
Discover carefully curated flight deals from Duluth to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 25, 2026.
This Delta deal was found by Cheapflights users on 5/24. 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.
Tue 6/165:00 am
DLH
- DEN
1 stop4h 03m
Delta
Tue 6/236:00 am
DEN
- DLH
1 stop4h 08m
Delta
Deal found 5/24![Delta logo]()
$298
This United Airlines deal was found by Cheapflights users on 5/22. 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 10/285:00 am
DLH
- DEN
1 stop6h 30m
United Airlines
Sat 10/318:17 am
DEN
- DLH
1 stop8h 17m
United Airlines
Deal found 5/22![United Airlines logo]()
$378
This Delta deal was found by Cheapflights users on 5/23. 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.
Mon 8/38:18 am
DLH
- DEN
1 stop4h 48m
Delta
Wed 8/129:29 am
DEN
- DLH
2 stops12h 12m
Delta
Deal found 5/23![Delta logo]()
$432
This United Airlines deal was found by Cheapflights users on 5/23. 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.
Tue 8/46:25 pm
DLH
- DEN
1 stop6h 23m
United Airlines
Fri 8/74:29 pm
DEN
- DLH
1 stop5h 54m
United Airlines
Deal found 5/23![United Airlines logo]()
$436
This United Airlines deal was found by Cheapflights users on 5/23. 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.
Mon 8/36:25 pm
DLH
- DEN
1 stop6h 23m
United Airlines
Fri 8/74:59 pm
DEN
- DLH
1 stop5h 24m
United Airlines
Deal found 5/23![United Airlines logo]()
$436
This Delta deal was found by Cheapflights users on 5/22. 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 6/245:00 am
DLH
- DEN
1 stop4h 14m
Delta
Tue 6/306:00 am
DEN
- DLH
1 stop12h 24m
Delta
Deal found 5/22![Delta logo]()
$506
This United Airlines deal was found by Cheapflights users on 5/20. 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 8/206:23 pm
DLH
- DEN
1 stop6h 30m
United Airlines
Sun 8/236:00 am
DEN
- DLH
1 stop7h 31m
United Airlines
Deal found 5/20![United Airlines logo]()
$483
This Delta deal was found by Cheapflights users on 5/22. 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 6/238:00 am
DLH
- DEN
1 stop16h 31m
Delta
Tue 6/306:00 am
DEN
- DLH
1 stop12h 24m
Delta
Deal found 5/22![Delta logo]()
$544
This Delta deal was found by Cheapflights users on 5/22. 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.
Thu 6/254:07 pm
DLH
- DEN
1 stop8h 24m
Delta
Tue 6/306:00 am
DEN
- DLH
1 stop12h 24m
Delta
Deal found 5/22![Delta logo]()
$584
This United Airlines deal was found by Cheapflights users on 5/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/26:25 pm
DLH
- DEN
1 stop6h 23m
United Airlines
Fri 7/109:10 pm
DEN
- DLH
2 stops12h 31m
United Airlines
Deal found 5/19![United Airlines logo]()
$633
This United Airlines deal was found by Cheapflights users on 5/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/167:06 am
DLH
- DEN
1 stop8h 40m
United Airlines
Tue 6/237:40 am
DEN
- DLH
1 stop5h 46m
United Airlines
Deal found 5/24![United Airlines logo]()
$690
Last-minute flights from Duluth to ColoradoDiscover last-minute flight deals from Duluth to Colorado. Data last updated May 25, 2026 and is based on user searches.
Discover last-minute flight deals from Duluth to Colorado. Data last updated May 25, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 5/19. 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.
Fri 5/295:15 am
DLH
- DEN
1 stop3h 46m
Delta
Sun 5/316:00 am
DEN
- DLH
1 stop5h 04m
Delta
Deal found 5/19![Delta logo]()
$498
This United Airlines deal was found by Cheapflights users on 5/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:25 pm
DLH
- DEN
1 stop6h 27m
United Airlines
Sun 5/316:00 am
DEN
- DLH
1 stop7h 26m
United Airlines
Deal found 5/19![United Airlines logo]()
$664
One-way flights from Duluth to ColoradoSearch for one-way flight options from Duluth to Colorado. Find affordable one-way fares based on user searches. Data last updated May 25, 2026.
Search for one-way flight options from Duluth to Colorado. Find affordable one-way fares based on user searches. Data last updated May 25, 2026.
This Delta deal was found by Cheapflights users on 5/24. 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 7/175:00 am
DLH
- DEN
1 stop4h 06m
Delta
Deal found 5/24![Delta logo]()
$178
This United Airlines deal was found by Cheapflights users on 5/22. 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.
Tue 8/46:25 pm
DLH
- DEN
2 stops13h 24m
United Airlines
Deal found 5/22![United Airlines logo]()
$381
This United Airlines deal was found by Cheapflights users on 5/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/176:25 pm
DLH
- DEN
2 stops15h 20m
United Airlines
Deal found 5/24![United Airlines logo]()
$409
Find flight deals from Duluth to Colorado
Keep the following information in mind while searching for Duluth to Colorado flight deals. Data was last updated May 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $298 (Delta) |
One-way from | $178 (Delta) |
Popular in | June |
Cheapest in | September |
Average price | $408 |
Cheapflights Fare Finder
Customize your flight search to find flights from Duluth to Colorado 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 2,558,603 searches. Data last updated May 25, 2026.
Use the filters below to find and compare flights from Duluth to Colorado that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
DuluthDenver
DLH - DEN
DLHDEN
Duluth Intl
Tue 6/16
5:00 am-8:03 am
1 stop4h 03m
Denver Intl
Tue 6/23
6:00 am-11:08 am
1 stop4h 08m
$298
DuluthDenver
DLH - DEN
DLHDEN
Duluth Intl
Wed 10/28
5:00 am-10:30 am
1 stop6h 30m
Denver Intl
Sat 10/31
8:17 am-5:34 pm
1 stop8h 17m
$378
DuluthDenver
DLH - DEN
DLHDEN
Duluth Intl
Mon 8/3
8:18 am-12:06 pm
1 stop4h 48m
Denver Intl
Wed 8/12
9:29 am-10:41 pm
2 stops12h 12m
$432
DuluthDenver
DLH - DEN
DLHDEN
Duluth Intl
Tue 8/4
6:25 pm-11:48 pm
1 stop6h 23m
Denver Intl
Fri 8/7
4:29 pm-11:23 pm
1 stop5h 54m
$436
DuluthDenver
DLH - DEN
DLHDEN
Duluth Intl
Mon 8/3
6:25 pm-11:48 pm
1 stop6h 23m
Denver Intl
Fri 8/7
4:59 pm-11:23 pm
1 stop5h 24m
$436
DuluthDenver
DLH - DEN
DLHDEN
Duluth Intl
Thu 8/20
6:23 pm-11:53 pm
1 stop6h 30m
Denver Intl
Sun 8/23
6:00 am-2:31 pm
1 stop7h 31m
$483
DuluthDenver
DLH - DEN
DLHDEN
Duluth Intl
Wed 6/24
5:00 am-8:14 am
1 stop4h 14m
Denver Intl
Tue 6/30
6:00 am-7:24 pm
1 stop12h 24m
$506
DuluthDenver
DLH - DEN
DLHDEN
Duluth Intl
Tue 6/23
8:00 am-11:31 pm
1 stop16h 31m
Denver Intl
Tue 6/30
6:00 am-7:24 pm
1 stop12h 24m
$544
DuluthDenver
DLH - DEN
DLHDEN
Duluth Intl
Thu 6/25
4:07 pm-11:31 pm
1 stop8h 24m
Denver Intl
Tue 6/30
6:00 am-7:24 pm
1 stop12h 24m
$584
DuluthDenver
DLH - DEN
DLHDEN
Duluth Intl
Thu 7/2
6:25 pm-11:48 pm
1 stop6h 23m
Denver Intl
Fri 7/10
9:10 pm-10:41 am
2 stops12h 31m
$633
Showing 1-10 of 14 resultsSorted by cheapest first
Best time to book a flight from Duluth to Colorado
Have a flexible travel schedule? Discover the best time to fly to Colorado from Duluth with our price prediction graph.
DLH-DEN
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 Duluth to Colorado
DLH-USCO
DLH-DEN
What is the cheapest month to book a flight from Duluth to Colorado?
Currently, December is the cheapest month in which you can book a flight from Duluth to Colorado (average of $68). Flying from Duluth to Colorado in March is currently the most expensive (average of $528). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Duluth to Colorado?
Reviews of airlines servicing Colorado
Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated May 25, 2026.
Get a feel of what it's like to fly with Delta and United Airlines from Duluth to Colorado by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Duluth to Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Duluth and Colorado flights
Browse other Duluth and Colorado flight options. Last updated on May 25, 2026.
Popular flight searches
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Duluth to Colorado flights
Consider these flights traveling from Duluth to Colorado.
Top 2 airlines flying from Duluth to Colorado
Discover the top 2 airlines that operate flights from Duluth to Colorado. 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 2,558,603 searches. Data last updated May 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$123 | Average$336 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$238 | Average$397 | FlexibilityNo cancel fee | On-time69% |