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$183+ 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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — DLH
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap 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 September 11, 2025.

Round-trip from

$258
(Delta)

One-way from

$183
(Delta)

Popular in

August

Cheapest in

November

Average price

$394
From Phoenix Sky Harbor Intl to Duluth Intl
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One-way flight from Phoenix Sky Harbor Intl to Duluth Intl
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Highest demand for flights based on searches. 16% potential increase in price ($79 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This Delta deal was found by Cheapflights users on 9/10. 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 11/58:00 amPHX - DLH
1 stop6h 30mDelta
Sat 11/812:02 pmDLH - PHX
1 stop6h 07mDelta
Deal found 9/10$258
This Delta deal was found by Cheapflights users on 9/10. 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 12/33:20 pmPHX - DLH
1 stop7h 39mDelta
Sun 12/78:05 amDLH - PHX
1 stop6h 55mDelta
Deal found 9/10$272
This Delta deal was found by Cheapflights users on 9/10. 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 10/305:14 pmPHX - DLH
1 stop4h 28mDelta
Mon 11/35:18 amDLH - PHX
1 stop4h 58mDelta
Deal found 9/10$283
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/47:46 pmPHX - DLH
2 stops12h 59mUnited Airlines
Wed 10/811:20 amDLH - PHX
2 stops10h 10mUnited Airlines
Deal found 9/11$300
This Delta deal was found by Cheapflights users on 9/10. 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 10/305:14 pmPHX - DLH
1 stop4h 28mDelta
Tue 11/45:18 amDLH - PHX
1 stop4h 58mDelta
Deal found 9/10$311
This Delta deal was found by Cheapflights users on 9/10. 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 12/43:20 pmPHX - DLH
1 stop7h 39mDelta
Mon 12/812:01 pmDLH - PHX
1 stop6h 47mDelta
Deal found 9/10$336
This Delta deal was found by Cheapflights users on 9/11. 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 9/201:45 pmPHX - DLH
1 stop6h 58mDelta
Sat 9/275:10 amDLH - PHX
1 stop5h 38mDelta
Deal found 9/11$338
This United Airlines deal was found by Cheapflights users on 9/10. 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 9/1712:43 pmPHX - DLH
1 stop7h 22mUnited Airlines
Wed 9/249:45 amDLH - PHX
2 stops12h 32mUnited Airlines
Deal found 9/10$344
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/305:20 pmPHX - DLH
3 stops15h 17mUnited Airlines
Tue 11/411:14 amDLH - PHX
2 stops11h 16mUnited Airlines
Deal found 9/10$354
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/1410:41 amPHX - DLH
2 stops9h 27mUnited Airlines
Wed 10/223:07 pmDLH - PHX
2 stops8h 50mUnited Airlines
Deal found 9/11$356

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 September 11, 2025.
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

Wed 11/5

8:00 am-3:30 pm

1 stop6h 30m

Duluth Intl

Sat 11/8

12:02 pm-5:09 pm

1 stop6h 07m

$258

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Wed 12/3

3:20 pm-11:59 pm

1 stop7h 39m

Duluth Intl

Sun 12/7

8:05 am-2:00 pm

1 stop6h 55m

$272

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Thu 10/30

5:14 pm-11:42 pm

1 stop4h 28m

Duluth Intl

Tue 11/4

5:18 am-9:16 am

1 stop4h 58m

$311

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Thu 12/4

3:20 pm-11:59 pm

1 stop7h 39m

Duluth Intl

Mon 12/8

12:01 pm-5:48 pm

1 stop6h 47m

$336

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Wed 9/17

10:51 am-10:05 pm

1 stop9h 14m

Duluth Intl

Wed 9/24

8:00 am-2:39 pm

1 stop8h 39m

$338

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Tue 9/23

11:23 am-7:13 pm

1 stop5h 50m

Duluth Intl

Sat 9/27

7:50 am-12:37 pm

1 stop6h 47m

$338

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Wed 10/8

12:35 pm-10:08 pm

1 stop7h 33m

Duluth Intl

Wed 10/15

9:45 am-7:15 pm

2 stops11h 30m

$344

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Sat 10/4

7:46 pm-10:45 am

2 stops12h 59m

Duluth Intl

Tue 10/7

3:07 pm-10:00 pm

1 stop8h 53m

$344

PhoenixDuluth

PHX - DLH

PHXDLH

Phoenix Sky Harbor Intl

Sat 9/20

1:45 pm-10:43 pm

1 stop6h 58m

Duluth Intl

Tue 9/30

5:10 am-8:48 am

1 stop5h 38m

$368

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

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, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Duluth (average of $339). Flying from Phoenix Sky Harbor Intl Airport to Duluth in June is currently the most expensive (average of $477). 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.

What is the cheapest time of day to fly from PHX to DLH?

Find hourly flight availability from Sky Harbor Intl to Duluth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

One of the essential ways to save on airfare from Phoenix Sky Harbor Intl Airport to Duluth is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 33% on airfare.

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 September 11, 2025.
Read through reviews of airlines operating flights from Phoenix Sky Harbor Intl Airport to Duluth, such as Delta, United Airlines, and Sun Country Air. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

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
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

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
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

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
Sun Country Air
6.9
Okay
330 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

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 3 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?

    Delta can get you from Phoenix Sky Harbor Intl Airport to Duluth in just under 6h 30m. Your travel time can differ by up to . The distance between Phoenix Sky Harbor Intl Airport and Duluth is about 1389 mi.

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

    Currently priced at $143, Sun Country Air will fly you from Phoenix Sky Harbor Intl Airport to Duluth and back. In addition to Sun Country Air, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and United Airlines - these airlines can fly you to your destination from $246 and $258, respectively. Sun Country Air is priced at 63% 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, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Duluth (average of $339). Flying from Phoenix Sky Harbor Intl Airport to Duluth in June is currently the most expensive (average of $477). 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 3 airlines flying from Sky Harbor Intl to Duluth

Discover the top 3 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$143Average$266FlexibilityNo cancel feeOn-time83%
DeltaCheapest$246Average$402FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$258Average$516FlexibilityNo cancel feeOn-time69%

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