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$251+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — DLH
Aug 22 — Aug 291
Sat 8/22
Sat 8/29
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 July 23, 2026.

This United Airlines deal was found by Cheapflights users on 7/19. 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.
Tue 8/186:20 am
PHX
-
DLH
1 stop9h 14m
United Airlines
Tue 8/257:45 am
DLH
-
PHX
1 stop7h 11m
United Airlines
Deal found 7/19$335
This Delta deal was found by Cheapflights users on 7/20. 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.
Sat 8/299:42 am
PHX
-
DLH
1 stop8h 02m
Delta
Fri 9/45:15 am
DLH
-
PHX
1 stop5h 22m
Delta
Deal found 7/20$356
This Delta deal was found by Cheapflights users on 7/22. 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.
Fri 9/1811:51 am
PHX
-
DLH
1 stop5h 34m
Delta
Sun 9/205:15 am
DLH
-
PHX
1 stop5h 16m
Delta
Deal found 7/22$364
This Delta deal was found by Cheapflights users on 7/20. 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.
Mon 8/249:42 am
PHX
-
DLH
1 stop8h 02m
Delta
Mon 8/318:18 am
DLH
-
PHX
1 stop6h 19m
Delta
Deal found 7/20$391
This Delta deal was found by Cheapflights users on 7/19. 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.
Thu 8/201:58 pm
PHX
-
DLH
1 stop6h 43m
Delta
Sat 8/295:15 am
DLH
-
PHX
1 stop5h 22m
Delta
Deal found 7/19$392
This Delta deal was found by Cheapflights users on 7/20. 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.
Fri 8/79:42 am
PHX
-
DLH
1 stop8h 02m
Delta
Wed 8/125:15 am
DLH
-
PHX
1 stop7h 37m
Delta
Deal found 7/20$394
This Delta deal was found by Cheapflights users on 7/20. 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.
Tue 8/41:58 pm
PHX
-
DLH
1 stop6h 43m
Delta
Sat 8/88:18 am
DLH
-
PHX
1 stop6h 19m
Delta
Deal found 7/20$436
This United Airlines deal was found by Cheapflights users on 7/22. 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 8/192:19 pm
PHX
-
DLH
1 stop7h 03m
United Airlines
Wed 8/267:45 am
DLH
-
PHX
1 stop9h 35m
United Airlines
Deal found 7/22$437
This Delta deal was found by Cheapflights users on 7/23. 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.
Sun 7/269:42 am
PHX
-
DLH
1 stop7h 43m
Delta
Sun 9/205:15 am
DLH
-
PHX
1 stop5h 16m
Delta
Deal found 7/23$446

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 July 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$335
(United Airlines)

One-way from

$251
(Delta)

Popular in

August

Cheapest in

November

Average price

$632
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.
Search Deals
From Phoenix Sky Harbor Intl to Duluth Intl
Search Deals
One-way flight from Phoenix Sky Harbor Intl to Duluth Intl
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($104 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in July 2026
Search Deals

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 July 23, 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Tue 8/18

6:20 am-5:34 pm

1 stop9h 14m

Duluth Intl

Tue 8/25

7:45 am-12:56 pm

1 stop7h 11m

$335
Quickest round-trip

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Mon 9/14

11:51 am-7:25 pm

1 stop5h 34m

Duluth Intl

Mon 9/21

5:15 am-8:31 am

1 stop5h 16m

$356

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Sun 9/13

7:05 am-3:29 pm

1 stop6h 24m

Duluth Intl

Sun 9/20

5:15 am-10:25 am

1 stop7h 10m

$356

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Sun 8/23

11:58 am-7:44 pm

1 stop5h 46m

Duluth Intl

Fri 9/18

5:15 am-8:31 am

1 stop5h 16m

$436

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Tue 8/4

1:58 pm-10:41 pm

1 stop6h 43m

Duluth Intl

Sat 8/8

8:18 am-12:37 pm

1 stop6h 19m

$436

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Sun 7/26

9:42 am-7:25 pm

1 stop7h 43m

Duluth Intl

Sun 9/20

5:15 am-8:31 am

1 stop5h 16m

$446

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Sat 8/29

8:55 am-11:22 pm

2 stops12h 27m

Duluth Intl

Fri 9/4

3:11 pm-10:59 pm

2 stops9h 48m

$478

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Sun 8/23

9:42 am-7:44 pm

1 stop8h 02m

Duluth Intl

Fri 8/28

8:18 am-12:37 pm

1 stop6h 19m

$566

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Fri 9/18

7:37 pm-10:42 am

2 stops13h 05m

Duluth Intl

Sun 9/20

6:24 pm-6:33 pm

1 stop26h 09m

$571

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Mon 8/3

6:54 pm-10:41 am

2 stops13h 47m

Duluth Intl

Fri 8/7

6:25 pm-10:34 am

2 stops18h 09m

$593

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/19

Showing 1-10 of 16 resultsSorted by cheapest first
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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*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 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 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, November is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Duluth (average of $286). Flying from Phoenix Sky Harbor Intl Airport to Duluth in August is currently the most expensive (average of $758). 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 Phoenix Sky Harbor Intl Airport to Duluth?

Airfare is below average for this route at the moment.

Phoenix Sky Harbor Intl Airport to Duluth flights typically cost between $574 and $722 in August.
The cheapest round-trip price found within the last 5 days was $335 on United Airlines (Aug 18-Aug 25).

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 July 23, 2026.
Read through reviews of airlines operating flights from Phoenix Sky Harbor Intl Airport to Duluth, such as Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,479 reviews

Comfort

7.8

Overall

7.8

Food

7.2

Crew

8.5

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Aug 2023

BDL - MSP

The seats were wayyyy too small! If you are a larger person buying 2 seats would not work as arm rests do not go up
Delta
7.8
Good
8,479 reviews
Delta
7.8
Good
8,479 reviews

Comfort

7.8

Overall

7.8

Food

7.2

Crew

8.5

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Aug 2023

BDL - MSP

The seats were wayyyy too small! If you are a larger person buying 2 seats would not work as arm rests do not go up

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 1 airline. 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 5h 34m. Your travel time can differ by up to 3h 40m. The distance between Phoenix Sky Harbor Intl Airport and Duluth is about 1389 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Phoenix Sky Harbor Intl Airport to Duluth round-trip?

    Currently priced at $221, 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. Delta is priced at 52% 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, November is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Duluth (average of $286). Flying from Phoenix Sky Harbor Intl Airport to Duluth in August is currently the most expensive (average of $758). 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

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Top airline flying from Sky Harbor Intl to Duluth

Discover the top airline 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 July 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$221Average$438FlexibilityNo cancel feeOn-timeN/A

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