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$196+ Cheap flights from Sky Harbor Intl (PHX) to Duluth (DLH)

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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — DLH
Feb 23 — Mar 21
Mon 2/23
Mon 3/2
1 adult, Economy
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Cheap flight deals from Sky Harbor Intl to Duluth

Cheapest flights from Sky Harbor Intl to Duluth
Explore the most affordable flight options available from Sky Harbor Intl to Duluth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 24, 2026.

This United Airlines deal was found by Cheapflights users on 1/22. 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 4/187:35 am
PHX
-
DLH
2 stops12h 26m
United Airlines
Tue 4/213:08 pm
DLH
-
PHX
1 stop9h 07m
United Airlines
Deal found 1/22$389
This Delta deal was found by Cheapflights users on 1/23. 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 4/216:05 am
PHX
-
DLH
1 stop7h 45m
Delta
Fri 4/244:30 pm
DLH
-
PHX
1 stop5h 30m
Delta
Deal found 1/23$409
This United Airlines deal was found by Cheapflights users on 1/22. 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.
Mon 5/117:05 pm
PHX
-
DLH
2 stops13h 24m
United Airlines
Fri 5/152:57 pm
DLH
-
PHX
1 stop8h 59m
United Airlines
Deal found 1/22$415
This Delta deal was found by Cheapflights users on 1/22. 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 6/2312:59 am
PHX
-
DLH
1 stop7h 58m
Delta
Sun 6/285:10 am
DLH
-
PHX
1 stop5h 15m
Delta
Deal found 1/22$418
This United Airlines deal was found by Cheapflights users on 1/23. 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.
Sat 1/241:57 pm
PHX
-
DLH
1 stop7h 02m
United Airlines
Sat 1/313:05 pm
DLH
-
PHX
1 stop8h 54m
United Airlines
Deal found 1/23$428
This Delta deal was found by Cheapflights users on 1/22. 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.
Mon 4/206:05 am
PHX
-
DLH
1 stop7h 45m
Delta
Fri 4/244:30 pm
DLH
-
PHX
1 stop5h 30m
Delta
Deal found 1/22$437
This deal was found by Cheapflights users on 1/22. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/187:00 am
PHX
-
DLH
1 stop6h 37m
United Airlines
Sat 2/213:19 pm
DLH
-
PHX
1 stop8h 44m
United Airlines
Deal found 1/22$443

Find flight deals from Sky Harbor Intl to Duluth

Discover tips and strategies to find the most affordable flight options for your journey from Sky Harbor Intl (PHX) 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 January 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$389
(United Airlines)

One-way from

$196
(Delta)

Popular in

August

Cheapest in

June

Average price

$516
Provider with most accurate pricing for Phoenix Sky Harbor Intl-Duluth Intl flight deals.
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Provider most trusted by Cheapflights users for Phoenix Sky Harbor Intl-Duluth Intl flights.
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From Phoenix Sky Harbor Intl to Duluth Intl
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One-way flight from Phoenix Sky Harbor Intl to Duluth Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($37 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Sky Harbor Intl 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 2,558,603 searches. Data last updated January 24, 2026.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Duluth that are best for you.

Fly from

Sky Harbor Intl

Fly to

Duluth

Route

Depart

Return

Price

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Sat 4/18

9:50 am-10:01 pm

2 stops10h 11m

Duluth Intl

Tue 4/21

7:45 am-1:11 pm

1 stop7h 26m

$389

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Mon 5/11

5:00 pm-11:38 pm

1 stop4h 38m

Duluth Intl

Fri 5/15

5:10 am-8:25 am

1 stop5h 15m

$409

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Tue 4/21

6:05 am-3:50 pm

1 stop7h 45m

Duluth Intl

Fri 4/24

4:30 pm-8:00 pm

1 stop5h 30m

$409

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Mon 5/11

7:05 pm-10:29 am

2 stops13h 24m

Duluth Intl

Fri 5/15

2:57 pm-9:56 pm

1 stop8h 59m

$415

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Tue 6/23

12:59 am-10:57 am

1 stop7h 58m

Duluth Intl

Sun 6/28

5:10 am-8:25 am

1 stop5h 15m

$418

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Mon 4/20

6:05 am-3:50 pm

1 stop7h 45m

Duluth Intl

Fri 4/24

4:30 pm-8:00 pm

1 stop5h 30m

$437

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Wed 2/18

7:00 am-2:37 pm

1 stop6h 37m

Duluth Intl

Sat 2/21

3:19 pm-11:03 pm

1 stop8h 44m

$443

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Wed 4/8

6:05 am-3:52 pm

1 stop7h 47m

$196

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Thu 4/9

6:05 am-3:52 pm

1 stop7h 47m

$196

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Wed 4/1

7:08 pm-10:29 am

2 stops13h 21m

$219

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/23

Showing 1-10 of 16 results
1
2

Compare providers for flights from Sky Harbor Intl 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 Sky Harbor Intl to Duluth in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Phoenix Sky Harbor Intl Airport-Duluth flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Phoenix Sky Harbor Intl Airport-Duluth flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Phoenix Sky Harbor Intl Airport-Duluth flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Phoenix Sky Harbor Intl Airport-Duluth flights, Cheapflights users trust Expedia the most. Expedia 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 Phoenix Sky Harbor Intl Airport-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 Sky Harbor Intl to Duluth

Have a flexible travel schedule? Discover the best time to fly to Duluth from Sky Harbor Intl with our price prediction graph.
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 Phoenix Sky Harbor Intl Airport to Duluth

What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Duluth?

Currently, March is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Duluth (average of $192). Flying from Phoenix Sky Harbor Intl Airport to Duluth in January is currently the most expensive (average of $439). 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.

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 January 24, 2026.
Read through reviews of airlines operating flights from Phoenix Sky Harbor Intl Airport to Duluth, such as Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,111 reviews

Entertainment

7.8

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.9

Food

7.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
7.9
Good
8,111 reviews
Delta
7.9
Good
8,111 reviews

Entertainment

7.8

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.9

Food

7.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
9,192 reviews
Delta
7.9
Good
8,111 reviews

Entertainment

7.8

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.9

Food

7.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Sky Harbor Intl to Duluth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Duluth from Phoenix Sky Harbor Intl?

    Most people fly into Duluth Intl (DLH) if they book a flight to Duluth from Phoenix Sky Harbor Intl. On average, Duluth Intl has 0 inbound flights from Phoenix Sky Harbor Intl per day from 2 airlines. Duluth Intl is conveniently located just 5.8 mi from Duluth’s city center.

  • How long is the flight from Phoenix Sky Harbor Intl Airport to Duluth?

    United Airlines and Delta can get you from Phoenix Sky Harbor Intl Airport to Duluth in just under 4h 38m. Your travel time can differ by up to 5h 33m. The distance between Phoenix Sky Harbor Intl Airport and Duluth is about 1389 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Phoenix Sky Harbor Intl Airport to Duluth round-trip?

    Currently priced at $203, Delta will fly you from Phoenix Sky Harbor Intl Airport to Duluth and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $223. Delta is priced at 50% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Sky Harbor Intl to Duluth that include hotel bookings?

    Yes. In addition to deals on Sky Harbor Intl to Duluth flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Sky Harbor Intl to Duluth?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sky Harbor Intl to Duluth.

  • Can I find deals for business class flights from Sky Harbor Intl to Duluth?

    Yes. Cheapflights offers flight deals from Sky Harbor Intl to Duluth by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Duluth?

    Currently, March is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Duluth (average of $192). Flying from Phoenix Sky Harbor Intl Airport to Duluth in January is currently the most expensive (average of $439). 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.

See more FAQs

Traveling to a place near Duluth?

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

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Top 2 airlines flying from Sky Harbor Intl to Duluth

Discover the top 2 airlines that operate flights from Sky Harbor Intl 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 2,558,603 searches. Data last updated January 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$203Average$393FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$223Average$511FlexibilityNo cancel feeOn-time69%

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