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Cheap flights from Colorado to Duluth from $176

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Duluth departing on 6/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Colorado to Duluth

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:00 am - 2:27 pm
DEN
-
DLH
7h 27m
1 stop
United Airlines Logo
11:19 am - 4:29 pm
DLH
-
DEN
6h 10m
1 stop
$266United Airlines
mar, apr 21 - mar, apr 28
Delta Logo
1:20 pm - 7:31 pm
DEN
-
DLH
5h 11m
1 stop
Delta Logo
5:15 am - 8:01 am
DLH
-
DEN
3h 46m
1 stop
$318Delta
ven, mag 29 - dom, mag 31
United Airlines Logo
5:44 pm - 12:29 am
DEN
-
DLH
5h 45m
1 stop
United Airlines Logo
6:57 pm - 12:58 am
DLH
-
DEN
7h 01m
1 stop
$323United Airlines
gio, apr 9 - dom, apr 12
Delta Logo
6:12 pm - 10:47 pm
DEN
-
DLH
3h 35m
1 stop
Delta Logo
12:37 pm - 4:03 pm
DLH
-
DEN
4h 26m
1 stop
$328Delta
mar, apr 7 - sab, apr 11
Delta Logo
6:00 am - 11:07 am
DEN
-
DLH
4h 07m
1 stop
Delta Logo
5:05 am - 8:03 am
DLH
-
DEN
3h 58m
1 stop
$335Delta
mar, giu 16 - sab, giu 20
Delta Logo
5:06 pm - 10:47 pm
DEN
-
DLH
4h 41m
1 stop
Delta Logo
12:47 pm - 3:36 pm
DLH
-
DEN
3h 49m
1 stop
$340Delta
ven, apr 10 - mar, apr 14
United Airlines Logo
6:00 am - 2:27 pm
DEN
-
DLH
7h 27m
1 stop
United Airlines Logo
2:57 pm - 9:08 pm
DLH
-
DEN
7h 11m
1 stop
$347United Airlines
mar, apr 28 - sab, mag 2
Delta Logo
6:55 pm - 11:38 pm
DEN
-
DLH
3h 43m
1 stop
Delta Logo
4:20 pm - 10:29 pm
DLH
-
DEN
7h 09m
1 stop
$351Delta
ven, set 11 - mer, set 16
Delta Logo
6:00 am - 11:08 am
DEN
-
DLH
4h 08m
1 stop
Delta Logo
5:05 am - 8:14 am
DLH
-
DEN
4h 09m
1 stop
$352Delta
mar, giu 23 - mer, giu 24
Delta Logo
12:12 pm - 6:01 pm
DEN
-
DLH
4h 49m
1 stop
Delta Logo
5:05 am - 8:14 am
DLH
-
DEN
4h 09m
1 stop
$354Delta
dom, giu 21 - mer, giu 24

United Airlines flights from Colorado to Duluth

Our best United Airlines deals on Colorado to Duluth flight tickets
United Airlines
Apr 21
DEN6:00 amDenver Intl
7h 27m
1 stop
DLH2:27 pmDuluth Intl
Apr 28
DLH11:19 amDuluth Intl
6h 10m
1 stop
DEN4:29 pmDenver Intl
$266
United Airlines
Apr 9
DEN3:20 pmDenver Intl
5h 46m
1 stop
DLH10:06 pmDuluth Intl
Apr 13
DLH6:57 pmDuluth Intl
6h 02m
1 stop
DEN11:59 pmDenver Intl
$328
United Airlines
Apr 28
DEN6:00 amDenver Intl
7h 27m
1 stop
DLH2:27 pmDuluth Intl
May 2
DLH2:57 pmDuluth Intl
7h 11m
1 stop
DEN9:08 pmDenver Intl
$347

Delta flights from Colorado to Duluth

Our best Delta deals on Colorado to Duluth flight tickets
Delta
May 29
DEN1:20 pmDenver Intl
5h 11m
1 stop
DLH7:31 pmDuluth Intl
May 31
DLH5:15 amDuluth Intl
3h 46m
1 stop
DEN8:01 amDenver Intl
$318
Delta
Apr 7
DEN6:12 pmDenver Intl
3h 35m
1 stop
DLH10:47 pmDuluth Intl
Apr 11
DLH12:37 pmDuluth Intl
4h 26m
1 stop
DEN4:03 pmDenver Intl
$328
Delta
Jun 16
DEN6:00 amDenver Intl
4h 07m
1 stop
DLH11:07 amDuluth Intl
Jun 20
DLH5:05 amDuluth Intl
3h 58m
1 stop
DEN8:03 amDenver Intl
$335

momondo 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, momondo users made 832,500 searches. Data last updated marzo 26, 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

Price

Cheapest round-trip

DenverDuluth

DEN - DLH

DENDLH

Denver Intl

mar 4/21

6:00 am-2:27 pm

1 stop7h 27m

Duluth Intl

mar 4/28

11:19 am-4:29 pm

1 stop6h 10m

$266

DenverDuluth

DEN - DLH

DENDLH

Denver Intl

ven 5/29

1:20 pm-7:31 pm

1 stop5h 11m

Duluth Intl

dom 5/31

5:15 am-8:01 am

1 stop3h 46m

$318

DenverDuluth

DEN - DLH

DENDLH

Denver Intl

gio 4/9

5:44 pm-12:29 am

1 stop5h 45m

Duluth Intl

dom 4/12

6:57 pm-12:58 am

1 stop7h 01m

$323
Quickest round-trip

DenverDuluth

DEN - DLH

DENDLH

Denver Intl

mar 4/7

6:12 pm-10:47 pm

1 stop3h 35m

Duluth Intl

sab 4/11

12:37 pm-4:03 pm

1 stop4h 26m

$328

DenverDuluth

DEN - DLH

DENDLH

Denver Intl

mar 6/16

6:00 am-11:07 am

1 stop4h 07m

Duluth Intl

sab 6/20

5:05 am-8:03 am

1 stop3h 58m

$335

DenverDuluth

DEN - DLH

DENDLH

Denver Intl

ven 4/10

5:06 pm-10:47 pm

1 stop4h 41m

Duluth Intl

mar 4/14

12:47 pm-3:36 pm

1 stop3h 49m

$340

DenverDuluth

DEN - DLH

DENDLH

Denver Intl

mar 4/28

6:00 am-2:27 pm

1 stop7h 27m

Duluth Intl

sab 5/2

2:57 pm-9:08 pm

1 stop7h 11m

$347

DenverDuluth

DEN - DLH

DENDLH

Denver Intl

ven 9/11

6:55 pm-11:38 pm

1 stop3h 43m

Duluth Intl

mer 9/16

4:20 pm-10:29 pm

1 stop7h 09m

$351

DenverDuluth

DEN - DLH

DENDLH

Denver Intl

mar 6/23

6:00 am-11:08 am

1 stop4h 08m

Duluth Intl

mer 6/24

5:05 am-8:14 am

1 stop4h 09m

$352

DenverDuluth

DEN - DLH

DENDLH

Denver Intl

dom 6/21

12:12 pm-6:01 pm

1 stop4h 49m

Duluth Intl

mer 6/24

5:05 am-8:14 am

1 stop4h 09m

$354

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Duluth from

How to get the cheapest flight ticket from Colorado to Duluth

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Colorado to Duluth flights?

You could potentially save up to 19% on your flight if you consider stops on a Colorado to Duluth flight.

Cheap Colorado to Duluth flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Duluth

Fastest flight time

3h 35m

Direct flights

None
The fastest flight from Colorado to Duluth takes 3h 35m
There are no direct flights from Colorado to Duluth. There are no popular flight routes from Colorado to Duluth.
Search flight deals

  • When did momondo last update prices for flights from Colorado to Duluth Intl Airport?

    Prices for flights from Colorado to Duluth Intl Airport were last updated today.

  • How many operators does momondo search for flights from Colorado to Duluth Intl Airport?

  • How old do you have to be to fly from Colorado to Duluth Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Colorado to Duluth Intl Airport.

  • What documentation or ID do you need to fly to Duluth Intl Airport?

    The travel and health documents you'll need for your trip to Duluth Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Duluth Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Colorado to Duluth

Compare and see reviews for airlines that fly from Colorado to Duluth with momondo
Airline
Rating
Free Cancellation
Price
Sun Country AirPriceFrom $68Free CancellationRating
6.8
339 reviews
Search Sun Country Air flights
United AirlinesPriceFrom $181Free CancellationRating
7.4
9,477 reviews
Search United Airlines flights
DeltaPriceFrom $214Free CancellationRating
7.9
8,326 reviews
Search Delta flights

Traveling to a place near Duluth?

Book flights to Duluth if you plan to visit one of these locations
Two Harbors
Superior
Hayward
Cloquet

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to Duluth?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Colorado to Duluth. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Colorado to Duluth with flexible booking policies on momondo?

Flights from Colorado to Duluth with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Colorado to Duluth?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Duluth from Colorado.

I’m not ready to book a flight from Colorado to Duluth right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Duluth from Colorado. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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